Introduction of plastic lubricants

 Plastic lubricants typically melt after the polymer has a higher viscosity, in the process, the molten polymer through the slit in the gate channel, etc., bound to a polymer melt processing machine with the friction surface some of the processing of the polymer in the friction is very unfavorable, so that the friction is reduced melt flow, and cause severe friction film surface becomes rough, or the lack of luster appears rhyolite. To do this, need to be added in order to improve lubricity, reduce friction and adhesion properties for the purpose of lowering the interfacial agents. This is the plastic lubricants. Plastic lubricants in addition to Plastic lubricants the fluidity, the accelerator may be from a melt, anti-adhesion and anti-static agents, slip agents and the like effect. Plastic lubricants can be divided into two kinds of external lubricant lubricants and internal and external lubricant role is mainly to improve the friction polymer melt processing equipment with hot metal surfaces. Plastic lubricants poor compatibility with the polymer is easy to migrate out from the melt, so the lubrication can be formed in the plastic sheet with the metal melt interface. Internal lubricants have good compatibility with the polymer properties, which serve to reduce the PVC lubricant  of cohesion between the polymer molecules within the polymer, thereby improving the internal friction of the plastic melt of the heat and melt flowability. Commonly used lubricants are stearic acid and its salts outside; internal lubricant is a low molecular weight polymer. Some lubricants have other functions. Each lubricant has actually can achieve a required role, internal and external lubrication always together, but in a way more prominent. A lubricant with different polymers under different processing conditions or exhibit different lubrication, such as high temperature, high pressure, the lubricant will be squeezed out of the inside and outside of the lubricant becomes.

Plastic lubricant definition and classification

Plastic lubricant defined: the polymer after the melt generally have a higher viscosity, in the process, the molten polymer through the slit in the gate channel, etc., bound to a polymer melt processing machine with surface friction, the friction of the processing, some of the polymer is very unfavorable, so that the friction is reduced melt flow, and the friction causes a serious film surface becomes rough, or the lack of luster appears rhyolite. To do this, need to be added in order to improve Plastic lubricants , reduce friction and adhesion properties for the purpose of lowering the interfacial agents. This is the lubricant. In addition to improving the mobility of the lubricant, but also can play a melt accelerator, anti-adhesion and anti-static agents, slip agents and the like effect. Plastic lubricant Category: Lubricants can be divided into two kinds of external lubricant PVC lubricant  and internal and external lubricant role is mainly to improve the friction polymer melt processing equipment with hot metal surfaces. It is less compatible with the polymer is easy to migrate out from the melt, so the lubrication can be formed in the plastic sheet with the metal melt interface. Internal Plastic lubricants have good compatibility with the polymer properties, which serve to reduce the effect of cohesion between the polymer molecules within the polymer, thereby improving the internal friction of the plastic melt of the heat and melt flowability. Commonly used lubricants are stearic acid and its salts outside; internal lubricant is a low molecular weight polymer. Some lubricants have other functions. Each lubricant has actually can achieve a required role, internal and external lubrication always together, but in a way more prominent. A lubricant with different polymers under different processing conditions or exhibit different lubrication, such as high temperature, high pressure, the lubricant will be squeezed out of the inside and outside of the lubricant becomes.

Plastic lubricants Introduction and Application

The selection of lubricants, generally considered to be the movement of the friction material, surface roughness, the working environment and working conditions, as well as lubricant performance and other factors. Mechanical devices, mostly through the lubricant to each lubrication distribution system requiring lubrication. Friction portion for Plastic lubricants , cooling and sealing the mechanical material. Many kinds of lubricants, are widely used. Lubricant is also used to improve the flowability and releasability of the plastics and other PVC lubricant , to prevent adhesion in the mold in the machine to produce fish eyes or other defects. The main function is to reduce the friction surface of the friction damage. However, due to a wide range of industrial machinery, machinery mainly to meet the requirements of lubricants to reduce friction, wear, there are some special requirements vary depending on the work environment, working conditions and proposed. Used medical equipment and more equipment for the iron plated with nickel chrome layer. When the nickel-chromium layer is damaged, impure iron (carbon) is exposed to air, the oxidation reaction occurs upon contact with oxygen and water, the occurrence of corrosion. Use of medical surgical instrument lubricant, can effectively prevent or delay the corrosion of surgical instruments.Plastic lubricants to reduce friction pair friction, slowing the wear of lubricating medium. Lubricants can play on friction cooling, cleaning and prevent pollution and so on. In order to improve the lubrication performance of the lubricant may be added in some suitable additives.

PVC lubricant uses

PVC lubricant to reduce friction friction, slowing the wear of lubricating medium. Lubricants can play on friction cooling, cleaning and prevent pollution and so on. In order to improve the lubrication performance of the lubricant may be added in some suitable additives. Choice when PVC lubricant, generally considered to be the movement of the friction material, surface roughness, the working environment and working Plastic lubricants , as well as PVC lubricant performance and other factors. Mechanical devices, mostly through the lubricant to each lubrication distribution system requiring lubrication. Friction portion for lubrication, cooling and sealing the mechanical material. The main function is to reduce the friction surface of the friction damage. However, due to a wide range of industrial machinery, PVC lubricant mainly to meet the requirements of lubricants to reduce friction, wear, there are some special requirements vary depending on the work environment, working conditions and proposed. Medical surgical instrument lubricant: medical devices used mostly for iron equipment, surface plated with nickel chrome layer. When the nickel-chromium layer is damaged, impure iron (carbon) is exposed to air, the oxidation reaction occurs upon contact with oxygen and water, the occurrence of corrosion. Use of medical surgical instrument lubricant, can effectively prevent or delay the corrosion of surgical instruments.

The role of PVC lubricant

 PVC lubricant  for reducing friction pair friction to slow the wear of lubricating medium. Lubricants can play on friction cooling, cleaning and prevent pollution and so on. In order to improve the  PVC lubricant  performance of the lubricant may be added in some suitable Plastic lubricants
 . The selection of lubricants, generally considered to be the movement of the friction material, surface roughness, the working environment and working conditions, as well as lubricant performance and other factors. Mechanical devices, mostly through the lubricant to each lubrication distribution system requiring  PVC lubricant . Friction portion for lubrication, cooling and sealing the mechanical material. Many kinds of lubricants, are widely used. Lubricant is also used to  PVC lubricant  the flowability and releasability of the plastics and other processing, to prevent adhesion in the mold in the machine to produce fish eyes or other defects. The main function is to reduce the friction surface of the friction damage. However, due to a wide range of industrial machinery, machinery mainly to meet the requirements of lubricants to reduce friction, wear, there are some special requirements vary depending on the work environment, working conditions and proposed.

WSD intenal lubricant Classification and mechanism of action of the lubricant

  In the plastics industry mainly used as PVC lubricants mold release agents, plasticizers, antistatic agents, especially for plastic foam products, anti-shrinkage agents. In the production of  PVC lubricant  as an internal lubricant, and can be used as an alkyd resin modifier, a plasticizer of cellulose nitrate. Lubricants [1] The resin is effective for improving the fluidity and plastic processing products releasability to prevent adhesion of the machine or mold, and internal defects.  
  General increase in the mold cavity plastic or coated surfaces. Common lubricants are fatty acids and their salts, long chain aliphatic hydrocarbons. Depending on the Plastic lubricants of action of the lubricant can be divided into external lubricants and internal lubricants. (1) external lubricants: the lubricant with a poor compatibility with the molding resin, so commonly used in the molding machine or the mold, forming a lubricating layer between it and the resin, the resin flow and easy demolding , such as paraffin. (2) Lubricants: Lubricants such good compatibility with a resin, often incorporated into the resin, the lower the melt viscosity of the resin, to improve its flowability. Such as butyl stearate, lead stearate. Stearic acid salts are both good lubricant, but also to be effective stabilizers.

The practical application of PVC plastic lubricant

PVC plastic lubricant additive has the functions of a kind used in many products, PVC plastic lubricant can bring many benefits for polymer products. We can use thesebenefits are divided into, have a direct contribution of rutile titanium dioxide on polyolefin color stability and corrosion; lubrication / PVC plastic lubricant processing aids to improve the polyolefin, polyamide, styrene and rubber in the extrusion of PVCstabilizer and pressing molding processability. Mould for thermoplastics andthermosetting products, rubber, such as polyurethane foam and unsaturated polyester. Anatase titanium dioxide and stearic acid metal salt is a kind of used in many products, Jin Hongshi type titanium dioxide additive has a variety of functions,magnesium hydroxide flame retardant can bring many benefits for polymer products.We can use these benefits are mainly divided into three aspects; there is a directcontribution of rutile titanium dioxide stable and corrosion of PVC stabilizer in polyolefin acid neutralizing agent for polyolefin colour; lubrication / processing aids magnesium hydroxide improves the polyolefin, PVC stable agent polyamide,magnesium hydroxide and rubber in the extrusion of PVC stabilizer and pressing whenprocessing. PVC stabilizer mould for thermoplastics and thermosetting products,rubber.

Impact modifier and the department pvcsta, bilizer WSD interior lubricant

The main effect of impact modifier is low temperature embrittlement improve polymer materials, given its higher toughness. According to the Zhejiang Shengzhou Wanshida Chemical Co., Ltd., company reports, in 2004 the global plastic anti impact modifier market demand is 600000 tons worth about US $1500000000, such as ABS,WSD intenal lubricant copolymer of styrene Methyl Methacrylate Butadiene Styrene (MBS) impact modified agent has become the largest category, WSD intenal lubricant plastic impact modifier accounts for about 45% of the market share, acrylic accounted for nearly 30%;impact modifier and elastic body including EPDM and thermoplastic elastomer (TPE) accounted for about 10% market share; WSD intenal lubricant for PVC heat stabilizer of chlorinated polyethylene (CPE) accounted for 10%, other 5%. According to the Zhejiang Shengzhou Wanshida Chemical Co., Ltd. prediction, 2004-2009 years, the heat stabilizer for polyvinyl chloride PVC plasticizer and styrene impact modifier average annual growth rate will be less than 3%,  PVC lubricant while the other class of average growth rate of 5%-6%. The plastic impact modifier and PVC impact modifier maximum variety plasticizer for polyvinyl chloride pvcsta, bilizer)accounted for about 80% of the amount of PVC, so the demand growth will drive increased demand impact modifier. WSD intenal lubricant Engineering plastic resin, plastic lubricant polyamide (PA) such as PC, bilizer, pvcsta impact modifier, polyester and other consumption impact modifier of about 10%, due to the demand of pvcsta engineering plastics bilizer are growing strongly, promote the growth of pvcsta bilizer impact modifier dosage. PVC plasticizers consumed about 10% anti impact modifier. The expert points out, the future development trend of the impact modifier is better performance, impact modifier cheaper, faster, pvcsta bilizer of the main materials with improved performance or guarantee performance under the thinner.WSD intenal lubricant Such as anti impact properties of Arkema Durastrength products can significantly improve PVC.

The use of plastics processing aids

Plastic additives plastic processing aids are also known plastic additives, processing aids, some plastic polymer compound is a synthetic resin molding to improve its performance or to improve the processing performance of the resin itself must be added the lack. For example, to reduce the molding temperature of the polyvinyl chloride resin,WSD intenal lubricant plastic,plastic lubricant soft and the article processing aid, a plasticizer;Another example of plastic components in order to produce the plastic used we usually is not a pure substance, Plastics Processing it is made of many materials additives prepared from. Wherein said optical brightener or a synthetic polymer resin is the main component of plastic, WSD intenal lubricant in addition to the optical brightener to improve the performance PVC lubricant of plastics, but also add a variety of auxiliary materials in the polymer, such as fillers, PVC lubricant optical brighteners plasticized plastic material is referred to as plasticity. Plastic Processing aid of a synthetic resin or natural resin-based material mainly plastics processing aids with or without a variety of plastic additives,plastic lubricant fillers and reinforcing materials, under certain conditions a certain temperature,WSD intenal lubricant pressure, processing aids plastic plastic molding or processing agent crosslinking, the finished state is generally flexible or rigid solid,plastic lubricant but generally it is made of plastic products yellowing aging or degradation of the material, PVC lubricant the processing aid is generally due to the plastic aging (degradation) generated by the presence of side groups on the polypropylene, its poor stability, especially in the case of illumination optical brightener. Plastics processing aids light stabilizers are generally added.

WSD Lant performance

The actual performance of the lubricant with a variety of plastic materials, such as kneading, the rolling process to prevent adhesion of the polymer cartridge suppressing friction and heat, and the load torque decreases kneading, thereby preventing the polymer material thermal degradation.n-butyl stearate In the extrusion molding, to improve flowability, the polymer material and to improve adhesion of the barrel and the die, to prevent and reduce retentate. Another film but also to improve the appearance and gloss.
From the perspective of processing machinery, in mixing, rolling, etc. slush molding process,Acrylic processing aid external lubricant has an important role in extrusion, injection molding, the lubricant is more effective.

WSD intenal lubricant of some simple analysis and presentation

Lubricants can be divided into two kinds of external lubricant lubricant inside and outside lubricant role is mainly to improve the friction polymer melt processing equipment with hot metal surfaces. It is less compatible with the polymer is easy to migrate out from the melt , so the lubrication can be formed in a thin layer of plastic and metal melt  Flame retardant interface . And lubricants have good compatibility with the polymer , it serves to reduce the effect of cohesion between the polymer molecules within the  polymer , intenal lubricant to improve the plastic melt in the heat of friction and melt flowability. Commonly used lubricants are stearic acid and salts thereof outside ; internal lubricant is a low molecular weight polymer. Function of some other lubricants . intenal lubricant Each lubricant has actually can achieve a required role in internal and  PVC plasticizer external lubrication always together, but in a way more prominent . A lubricant with different polymers under different processing conditions or exhibit different lubrication , such as high temperature , high pressure , the lubricant will be squeezed out of the inside and outside of the lubricant becomes . PVC efficient composite light lubricant is a new and efficient PVC composite lubricant and processing aids and part performance , the main component of the composite of polar / non-polar and linear / branched polyolefins and copolymers . At the same time , helping to accelerate the plasticized PVC resin to improve the extrusion rate.
PVC efficient composite light lubricant purposes: as PVC external lubricant and metal stripping agent / both processing aids ; transparent PVC products , PVC resin with excellent compatibility and high efficiency external lubrication
The actual performance of the lubricant with  PVC flame retardant a variety of plastic materials , such as kneading , the rolling process to prevent adhesion of the polymer cartridge suppressing friction and heat, and the load torque decreases kneading , thereby preventing the polymer material thermal degradation . In the extrusion molding , to improve flowability , the polymer material and to improve adhesion of the barrel and the die , to prevent and reduce retentate . Another film but also to improve the appearance and gloss.

intenal lubricant widely used in the actual processing

Lubricants plastic widely used in the actual processing of plastic, for example kneading, the rolling process, to prevent adhesion of the polymer cartridge suppressing friction and heat, and the load torque decreases kneading, thereby preventing the polymer
material of the heat deterioration. In the  WSD PVC flame retardant extrusion molding, to improve flowability, the polymer material and to improve adhesion
of the barrel and the die, to prevent and reduce retentate. Another film but also to improve the appearance and gloss.
Plastic lubricants can be divided into effect, the two plastic lubricants, intenal lubricant is mainly to improve the frictional
heat the metal surface of the polymer melt and processing equipment. Lubricants plastic outer poor compatibility with the polymer is easy to migrate out from the melt, so the lubrication can be formed in a WSD Processing aid  thin layer of plastic and metal melt interface. Plastic lubricant has good compatibility with the polymer, intenal lubricant which serves to reduce the effect of cohesion between
the polymer molecules within the polymer, thereby improving the plastic melt in the heat of friction and melt flowability. Commonly used lubricants are stearic acid and salts thereof outside; plastic lubricant is a low molecular weight polymer. A plastic lubricant with different polymers under different processing conditions or exhibit different lubrication, such as high temperature,
high pressure, the lubricant will be squeezed out of the inside and outside of the lubricant becomes.

intenal lubricant viscosity is one of the most important parameters of oil

Viscosity of oil is the most important parameter, which determines the sliding bearing oil film bearing capacity, the friction
power and the sealing capability of the sealing surface. Carrying capacity of high-viscosity lubricants large, easy to maintain
liquid lubrication, but its flow resistance, increasing the Plastic impact modifier  power and start the compressor friction resistance. Conversely, a low
viscosity lubricating oil flow resistance is small, less heat generated by friction, it is difficult to form oil film seal is poor.
Mixed with the working fluid and the working fluid is mixed well, the free flow of oil in the system, a smooth return to the
compressor, intenal lubricant to ensure the  Calcium stearate normal lubrication of the compressor. Instead, the lubricating oil in the system will

produce stratification, flow resistance is increased in the cycle, the heat transfer to weaken, resulting in insufficient oil
return to the compressor, intenal lubricant properties and thus the reliability of the compressor adverse consequences.
When the cloud point under given conditions, the temperature of the lubricating oil falls below a certain value, the oil begins to
precipitate in the wax, into a turbid state, this is Titanium dioxide rutile called the cloud point temperature of the lubricating oil. Oil cloud point
should be less than the minimum refrigerant evaporation temperature, otherwise precipitated paraffin clog the throttle, or weaken
the effect of the evaporator heat. Even clogged's tube evaporator channels. The maximum temperature in the freezing point of a
given condition, the lubricating oil at the start completely lost its flowability of gravity referred to the freezing point. Easy
come, the freezing point should be as low as possible.

The main role of intenal lubricant and its presentation

 intenal lubricant When the temperature reached 190 ℃, the primary particles begin to melt , polar lubricant , because good
compatibility with polyvinyl chloride , polyvinyl integrate most of the melt, the melt from the plasticizing effect in the . Due to
the non-polar lubricant solution compatible with Titanium dioxide rutile  the PVC melt is very small, most of the surface and pressed onto the interface
between the melt processing equipment , then, the metal melt is not a direct movement contacts , but with the viscosity of the lubricant liquid layer small stationary contact , the friction coefficient is less than a direct contact with the metal to be
smaller , which play an external lubricant is a lubricant such reasons . Tofurther illustrate the various stages of different
plastics processing requirements for lubricants , now extrusion PVC example: internal and external lubricant to illustrate the
major role played by the various parts of the processing machinery . Early  lubricant effect. This is a segment from the feed
zone to compress the time zone. PVC is mixed in the region and starts plasticization . Here the lubricant required to increase the
fluidity of the plastic to ensure smooth Calcium stearate  feeding . Therefore , in this region the main functions within the lubrication .  mid-
lubricant effect area. This is the region of the compression section to the metering section , and plasticized polyvinyl chloride
powder is completed here , in this process, the lubricant is required to reduce the friction during the flow of plastic to ensure
that the melt flow . Therefore , in this area mainly outside the lubrication function , intenal lubricant within the lubricant can
be reduced , but the melt flow , is also indispensable .  post lubrication. This is from the metering section to the metal mold
area. Here the melt is pressurized and fed into the molding die . In this region, the lubricant can reduce the required adhesion
between the melt and the mold surface , to facilitate the release , it is still the primary role of the lubricant . Since the
integral process , the general inner and outer lubrication of both the lubricant or lubricant compound . The role of the second
chapter of a lubricant to reduce melt viscosity in general, low melt viscosity , good fluidity , easy molding . Increasing the
temperature increases the thermal energy of the molecular motion , the relative reduction of the intermolecular forces , the melt
viscosity decreased, increased mobility . Polyvinyl chloride resin decomposition temperature of about 130 ~ 140 ℃, well below the
processing temperature of rigid PVC (185 ~ 205 ℃), so that by increasing the temperature to reduce the viscosity of the resin melt
is limited. Therefore, raising the temperature also means increased energy consumption , while extending the product cooling time ,
reducing production efficiency. Reducing the Stabilizers for pipe  molecular weight of the resin , the resin viscosity can be reduced while also reducing
the Vicat softening point and other mechanical properties. Adding a lubricant , and its purpose is to reduce the melt viscosity of
the resin to improve the fluidity of the polymer . 2 , to promote inter- capillary adsorption ( chemisorption ) Due to the
plasticizing effect of the lubricant with polar , plasticized resin is formed in front of the gap between the resin particles to
the segment between the resin particles and molecules . Junction by polar group phase lubricant into Los combined with resin chain , thus weakening the force between the resin particles and molecules between thechain is broken . In this case, the branch
subjected to heat and shear force , the molecular chains of the resin can be easily entangled original stretch , each expansion ,
penetration, the boundaries between the resin particles disappear , thus promoting plasticization . 3, to reduce the frictional
heat , the friction material is typically a thermoplastic , resin melt production process requires sufficient melt strength to
produce . Example ① rolling production process - plate production . Requested the extension of the melt resin peeling rollers ,
there must be adequate melt strength. Example ② blow molding production - blowing production . Requirements melt sufficient melt
strength to ensure that when a plastic , not because of increased melt strength and melt enough natural droop , resulting in
products of uneven thickness . The melt strength and melt viscosity of the size are dependent on the size of the force in the resin
between molecular chains . Therefore, in general, the melt strength and melt viscosity of the resin between the resin in the
molecule are different in different circumstances such that the expression of the role . The melt strength and melt viscosity
generally proportional to : the greater the melt strength, melt viscosity increases. The greater the melt viscosity of the resin ,
molding the greater the shearing force . The greater the shear force , the greater the friction . The principle for easy
decomposition characteristics of PVC is extremely unfavorable , can cause localized overheating within the resin decomposition.
Quality of both internal and external lubricants lubricants , lubricating parts of the outer rigid PVC can reduce frictional heat.
Internal lubrication also reduces the viscosity and the melt strength of the resin . Therefore, reducing the melt viscosity of the
resin , reduce friction heat , friction, force must be reduced within the resin molecules. Reduction of the interaction between the
resin melt , resulting in decrease in strength of the resin melt . G32-1 compound grease polar functional group is to reduce the
viscosity of the polyvinyl chloride resin , plasticized promote critical . Increasing the polarity of the non-polar group and a
lubricated interface PVC , PVC space segment only increased displacement or movement of the base to increase lubricity and reduce
internal friction and due to friction movement of the segments caused by displacement or generation of heat . 4 , a mixture of a
polar resin adhesive adhering hot metal surfaces of processing equipment is veryimportant . Initial feed processing equipment ,
low temperature, the resin mixture adhesion to metals , such as proper adhesion of the screw and barrel in the extrusion process .
In the calendering process , such as appropriate viscosity resin roller double roller can effectively heat and mechanical energy
conduction promoting plasticization . If the material over adhesion, the polymer local residence time is too long, causing
localized overheating of materials , thermal degradation , affecting product quality and appearance. If alone , such as : PE wax,
paraffin wax , stearic acid and other non -polar materials will " slip " is not conducive to rapid production . Adding an
appropriate amount G32-1 polymer composite lubricant grease to balance a reasonable balance mechanism in the polymer is the key . 5 , the delay in the plasticized polyvinyl chloride resin blend , the PE melting wax, paraffin wax , stearic acid and other non -
polar substances , wetting of the resin solid particles

Pack nuclear tribasic lead sulfate is a low- lead WSD PVC lubricant stabilizers

Pack nuclear tribasic lead sulfate is a low- lead PVC heat stabilizers , due to its creative use of nuclear technology package will be is still widely used, a large proportion of the market in the PVC stabilizer stabilizer tribasic lead sulfate coated surfaces made ​​of fine particles of inert filler novel packet core tribasic lead sulfate , significantly organic pigments reducing the toxic levels of lead and maintain their excellent performance and stability. Which are widely used in the processing of PVC pipes, fittings , profiles , wire and cable , pinch and so on.
In this paper, synthetic bag nuclear tribasic lead sulfate for a more in-depth research , experimental study of the optimal synthesis conditions . Methods are inert or semi- inert material selected as the core , its surface is uniformly coated with a layer of a tribasic lead sulfate thickness. Through the experiment, the reaction involved in the process parameters and reaction conditions ( such as reaction temperature, concentration of lead , covering the amount of water to feed ratio ) were optimized to prepare a Optical brightener low lead content package nuclear tribasic lead sulfate with traditional tribasic lead sulfate were compared with experiments. Experimental results show that : In making the overall performance is not affected all aspects of the premise of reducing the lead content of the experiment , thus reducing costs , reducing environmental pollution , broadening the sources of raw materials , with good economic and social benefits.

Thermal stabilizers microcapsules WSD intenal lubricantgood compatibility with PVC

PVC as wall material , hydrotalcite, calcium / zinc composite heat stabilizer as core materials, preparation of an efficient, environmentally friendly PVC composite stabilizer microcapsules , and discusses the optimal preparation of the microcapsules . The results showed organic pigments that the microcapsules prepared solid content of 15% , when the stirring speed of 600r/min, the stirring time is 160min, the non-solvent solvent such as tetrahydrofuran and ethylene glycol ratio of 5:3 , the amount of emulsifier is 3% Span80 The resulting microcapsules compact structure , particle size distribution 100 ~ 450μm. The heat stabilizer microcapsules with a certain prospect. By following five study concluded . These five areas are: the impact of the solid content of the microcapsules , solvent and non- solvent ratio of the impact of the microcapsules , stirring affect the speed of the microcapsules , stirring time of microcapsules , the microcapsules emulsifier affected. Optical brightener Conclusion : the optimal preparation of the microcapsules may be: a solid content of 15% , stirring speed of 600r/min, the stirring time 160min, the mass ratio of solvent and non- solvent is tetrahydrofuran, ethylene glycol is 5:3 , the amount of emulsifier Span80 3% , ambient temperature and pressure , etc. can be filtered and dried to obtain the particle size distribution of the microcapsules 100 ~ 450μm. This heat stabilizer microcapsules good compatibility with PVC , thermal stability and mechanical properties under further study.

In the actual performance of the lubricant with a variety of plastics processing

The actual performance of the lubricant with a variety of plastic materials, such as kneading, the rolling process to prevent adhesion of the polymer cartridge suppressing friction and heat, and the load torque decreases kneading, thereby preventing the polymer material thermal degradation. In the extrusion molding, to improve flowability, the polymer material and  WSD one pack stabilizer to improve adhesion of the barrel and the die, to prevent and reduce retentate. Another film but also to improve the appearance and gloss. From the perspective of processing machinery, in mixing, rolling, etc. slush molding process, external lubricant has an important role in extrusion, injection molding, the lubricant is more effective.
The amount of lubricant is generally 0.5% to 1%, the choice should pay attention to the following aspects:
Flow properties (1) of the polymer molding process needs have been met, then the role of the main considerations lubrication to ensure internal and external balance;
(2) the effectiveness of the lubrication, it can be in the temperature during molding, the plastic surface to form a complete liquid film, and may be so close to the melting point of the lubricant outside the molding temperature, but to a difference of 10 ℃ ~ 30 ℃ order to form a complete film;
(3) When selecting a lubricant in production, should make WSD PVC lubricants  it meet the following requirements:
(4) compatibility with moderate size, internal, external lubrication balance resin; non-blooming, easy to scale;
(5) surface gravity is small, small viscosity, at the interface of scalable, easy to form an interface layer;
(6) as far as possible without reducing the WSD Polyethylene wax  excellent properties of the polymer, does not affect the performance of the secondary processing of plastics;
(6) itself is excellent in heat resistance and chemical stability, does not decompose during processing, non-volatile;
(7) non-corrosive, does not pollute the film, there is no toxicity.

intenal lubricant is essential for PVC processing aids

Lubricants are essential in PVC processing aid. Add the right amount of lubricant in PVC can reduce friction between macromolecules PVC and PVC particles melt before the melt; reduce friction between the PVC melt plastic mechanical contact with the surface. PVC amount of lubricant can improve melt flow, increase productivity, and to prevent friction and heat caused by PVC
Degradation, improve product appearance quality. By WSD Stabilizers for pipe  function can be divided into external lubricant and the lubricant. PVC with poor external lubricant, easily migrate to the surface of the resin inside the melt, forming an interface layer of lubricant, thereby reducing the friction between the particles P PVC melt and the molten plastic prior to the mechanical contact between the faces. Lubricants containing a polar group, and has good compatibility with PVC, PVC can reduce inter-molecular forces, reduce melt viscosity and improve the melt fluidity.
Lubricant inside and outside of the points but relatively speaking, there is no strict criteria for the classification. Resin in WSD PVC lubricants  different polarities, the effect of external lubricants may change.
Such as stearic alcohol, stearic acid amine, butyl stearate, and stearic acid monoglyceride polar resin (such as PVC, PA) made, within lubrication, but for non-polar resin (such as PE
, PP), the outer displayed lubrication. Conversely, with a polar polymer such as paraffin resin phase difference, such as in a polar
PVC used as external lubricant applications: PVC lubricants in the plastics industry as the main mold release agents, plasticizers, antistatic agents, especially for plastic foam products, anti-shrinkage agents. In the production of PVC products as lubricants, and  WSD Polyethylene wax alkyd resin can be used as a modifier, a plasticizer of cellulose nitrate. A lubricant in the resin to improve the flowability and plastic processing products releasability to prevent the adhesion of the mold cavity or within the defects. General increase in the mold cavity plastic or coated surfaces. Common lubricants are fatty acids and their salts, long chain aliphatic hydrocarbons. Depending on the mechanism of action of lubricant can be divided into external and internal lubricant lubricants.

PVC lubricant analysis on data obtained from the rheometer

Liquidity and inversely proportional to the viscosity of the melt viscosity and is proportional to the torque. Therefore, the better the melt flow, the lower the torque. The results are given in three WSD Calcium stearate  torque value in the torque rheometer, which is the minimum torque, maximum torque (torque plasticizer), and the balance torque. The author believes that the plasticizing torque evaluate lubricant to improve the liquidity of the most important indicators of PVC resin. Of course, the minimum torque and torque balance also has certain reference but they are a very good correspondence between the plasticizing torque, general plasticizing torque, minimum torque and torque balance is large, and vice versa. I also  WSD Titanium dioxide rutile believe that the plasticizing effects of rotation torque device energy consumption is much larger than the actual processing equipment affect the balance of torque. There are two reasons: ① in the general proximity rigid PVC formulations are useful ACR processing aid, in this case, the torque value changes plasticized different lubrication systems is large, the  WSD Aluminum hydroxide torque balance is not very significant change [8]; ② various reasons (such as to avoid thermal decomposition, improved productivity, etc.) wishes to process the molten material balance as the torque corresponding to a shorter time, i.e., after reaching the expected degree of plasticized plastic melt leave processing equipment as soon as possible. Although only a plasticizing peak torque, but the plasticizing time of the peak corresponding to the integral of the area (energy consumption), but much greater than the torque corresponding to the balance of the integrated area of ​​time (energy consumption). It has also been proved: plasticizers torque only a few percent of large, integral surface because it is large, it also consumes a lot of energy, processing equipment due to overburdened