Efficient and environmentally friendly non-toxic polymer composite lubrication P-80A is a nontoxic compound efficient lubrication products. Efficient and environmentally friendly non-toxic Glycerol monostearate polymer composite lubrication is Jianhong lubricant formulations plant the introduction of international advanced technology and processes, using imported raw materials and foreign PVC plastic manufacturing process and material properties, polymer developed excellent internal and external lubricant. Overcome the lack of trouble and slip agents processing performance on the traditional monomer. Add this product safe to use, easy to mix, more stable performance, reasonable adjustment formula in the case, has the following Diethylene glycol dibenzoate remarkable properties:
1, reducing the coefficient of friction between molecules and promote plasticizing, stable and appropriate to reduce the amount of system products; has a good stripping effect, enhancing the surface finish and scratch resistance;
2, the melting point of the product is a wide range of PVC materials significantly enhance the free flow of processing and non-sticky, and thus increase productivity, reduce equipment wear and energy consumption, reduce product defect rate;
3, significant improvement fillers, pigments and other additives in the PVC dispersion resin, may be a corresponding increase in the amount of filler, and to products, color stability, increase the gloss;
4, the product both inside and outside tio2 anatase of the late lubrication before PVC processing, within the recommended dosage is not blooming, no precipitation, with good stability.
Efficient and environmentally friendly non-toxic polymer composite lubrication P-80A Scope:
Efficient and environmentally friendly non-toxic polymer composite lubrication P-80A is widely used in non-transparent sheet
WSD Chemical is specificaitonal manufacturing plastic chemical in china for 10 years, WSD intenal lubricant and supply all kinds plasic chemicals ,such as Metal soaps, PVC heat stabilizers,PVC plasticizer, Impact modifier,plastic lubricant processing aid , PVC lubricant flame retardant, pigments and optical brightener.
2013年12月1日星期日
2013年11月19日星期二
CBN grinding wheel in the stone 's role
Cubic boron nitride (CBN) grinding wheel is grinding carbide , glass,
ceramics , precious stones high hard and brittle material effects tools in
recent years, with high-speed ultra-precision grinding grinding technology
rapid development of grinding wheels made more high demand, ceramic resin
bonded grinding wheel can no longer meet
Production needs, because of its combination of metal bonded grinding wheel ,
high strength, good formability , long life and other significant
characteristics of the production has been widely used by metal-bonded
diamond wheels are manufactured in different ways there are sintered ,
plating two types , in order to give full play to the role of super abrasive
abroad from the 20th century, the Plastic impact modifier early 90s with a high temperature brazing
process to develop a new wheel, which wheel is still in the research and
development stage .
The cutting tool is a grinding wheel , which consists of many small and hard
abrasive particles and adhesive bonding agent made of the porous body .
Directly responsible abrasive cutting work must be sharp and has high
hardness, heat resistance and a toughness. Commonly used abrasive alumina (
also known as corundum ) and silicon carbide two kinds . Alumina-based
abrasive , high hardness, good toughness, suitable for grinding steel
material . Silicon carbide abrasive hardness is higher and more sharp , good
thermal conductivity , but more brittle , suitable for grinding cast iron and
carbide grinding wheel in the grinder as a cutting tool with the workpiece
machining side
France . The method is characterized by:
( 1) Since the abrasive grinding wheel itself has a high hardness and heat
resistance , high hardness can be processed so grinding materials such as
hardened steel , carbide, etc. . ( 2 ) determine Zinc stearate the characteristics of the
grinding wheel and grinding grinding system can make even a trace cutting ,
general ap = 0.001 ~ 0.005mm; grinding speed is high , generally up to v = 30
~ 50m / s; grinder stiffness ; using hydraulic transmission, so grinding can
be obtained economically with high precision (IT6 ~ IT5) and a small surface
roughness (Ra = 0.8 ~ 0.2μm). Grinding is one of the main methods parts
finishing . ( 3 ) As intense friction , leaving the grinding zone temperature
is high. This will cause the workpiece to produce stress and deformation of
the workpiece surface and even cause burns . Therefore, a lot of grinding
coolant must be injected to reduce the grinding temperature . Also from the
coolant and lubrication chip . ( 4 ) grinding large radial forces . This will
cause the machine - grinding wheel - workpiece system flexibility retreat ,
the actual depth of cut less than the nominal depth of cut . Therefore, the
grinding will be completed when the Optical brightener light is not to be infeed grinding to
remove the error . ( 5 ) After blunt abrasive , grinding force also increased
, resulting in grain crushing or off, re- exposing the sharp edge , this
feature is called " self-sharpening ." Self-sharpening of the grinding head
in a certain period of time to normal, but over a certain working time should
be performed after manual trimming , grinding force increases so as to cause
vibration , noise, and damage the workpiece surface quality.
ceramics , precious stones high hard and brittle material effects tools in
recent years, with high-speed ultra-precision grinding grinding technology
rapid development of grinding wheels made more high demand, ceramic resin
bonded grinding wheel can no longer meet
Production needs, because of its combination of metal bonded grinding wheel ,
high strength, good formability , long life and other significant
characteristics of the production has been widely used by metal-bonded
diamond wheels are manufactured in different ways there are sintered ,
plating two types , in order to give full play to the role of super abrasive
abroad from the 20th century, the Plastic impact modifier early 90s with a high temperature brazing
process to develop a new wheel, which wheel is still in the research and
development stage .
The cutting tool is a grinding wheel , which consists of many small and hard
abrasive particles and adhesive bonding agent made of the porous body .
Directly responsible abrasive cutting work must be sharp and has high
hardness, heat resistance and a toughness. Commonly used abrasive alumina (
also known as corundum ) and silicon carbide two kinds . Alumina-based
abrasive , high hardness, good toughness, suitable for grinding steel
material . Silicon carbide abrasive hardness is higher and more sharp , good
thermal conductivity , but more brittle , suitable for grinding cast iron and
carbide grinding wheel in the grinder as a cutting tool with the workpiece
machining side
France . The method is characterized by:
( 1) Since the abrasive grinding wheel itself has a high hardness and heat
resistance , high hardness can be processed so grinding materials such as
hardened steel , carbide, etc. . ( 2 ) determine Zinc stearate the characteristics of the
grinding wheel and grinding grinding system can make even a trace cutting ,
general ap = 0.001 ~ 0.005mm; grinding speed is high , generally up to v = 30
~ 50m / s; grinder stiffness ; using hydraulic transmission, so grinding can
be obtained economically with high precision (IT6 ~ IT5) and a small surface
roughness (Ra = 0.8 ~ 0.2μm). Grinding is one of the main methods parts
finishing . ( 3 ) As intense friction , leaving the grinding zone temperature
is high. This will cause the workpiece to produce stress and deformation of
the workpiece surface and even cause burns . Therefore, a lot of grinding
coolant must be injected to reduce the grinding temperature . Also from the
coolant and lubrication chip . ( 4 ) grinding large radial forces . This will
cause the machine - grinding wheel - workpiece system flexibility retreat ,
the actual depth of cut less than the nominal depth of cut . Therefore, the
grinding will be completed when the Optical brightener light is not to be infeed grinding to
remove the error . ( 5 ) After blunt abrasive , grinding force also increased
, resulting in grain crushing or off, re- exposing the sharp edge , this
feature is called " self-sharpening ." Self-sharpening of the grinding head
in a certain period of time to normal, but over a certain working time should
be performed after manual trimming , grinding force increases so as to cause
vibration , noise, and damage the workpiece surface quality.
2013年11月10日星期日
Fire hazards flame retardants play a major role
In our lives , often exposed to various substances, including , most contact is plastic , plastic industry, to give our lives has brought great convenience, but also brings some hazards are not chromium oxide small , we all know , plastic products are flammable , many fires and expanded with the plastic products have a great relationship , bring us a lot of fire damage or even disaster , how to reduce or inhibit the occurrence of such disasters that ? Flame retardants, play a very important role.
As a new type of flame retardant materials , also known as fire retardant or fire retardant, to give a flammable polymer flame-retardant functional additives . In daily life and its role is more and more obvious , textile flame retardants, wood flame retardants, halogen-free flame retardants such as product development , we can see a flame retardant for an important role in modern society .
Flame retardant effect is that the flame flammable products added to the products, so that these products epoxidation of soybean oil become flame flammable substances. Among these substances when burned , so the ignition time increased , lit self-extinguishing , difficult to ignite . Play a role in preventing burning flame in large part for the fire fighting and rescue fire scene , reduce losses , play a significant role.
Flame retardant series products have been in research, development , new flame retardant better performance, non-toxic, more effective to prevent burning phenomenon. So fire away from us .
As a new type of flame retardant materials , also known as fire retardant or fire retardant, to give a flammable polymer flame-retardant functional additives . In daily life and its role is more and more obvious , textile flame retardants, wood flame retardants, halogen-free flame retardants such as product development , we can see a flame retardant for an important role in modern society .
Flame retardant effect is that the flame flammable products added to the products, so that these products epoxidation of soybean oil become flame flammable substances. Among these substances when burned , so the ignition time increased , lit self-extinguishing , difficult to ignite . Play a role in preventing burning flame in large part for the fire fighting and rescue fire scene , reduce losses , play a significant role.
Flame retardant series products have been in research, development , new flame retardant better performance, non-toxic, more effective to prevent burning phenomenon. So fire away from us .
2013年11月1日星期五
Titanium dioxide in the garment and textile industry, the role of
Titanium dioxide is not just paint, paint and some other industrial sectors, "apple", but also some of the production and living supplies industry love. Such as cosmetics industry, garment and textile industry and so on. Here we take a look at the garment and textile pvc additive industry, titanium dioxide effect. Garment and textile industry is an important part of the chemical fiber industry, while titanium dioxide is a chemical fiber industry indispensable quality raw materials. Titanium dioxide matting agent added only to the chemical fiber matting play an important role, and polymer properties of the fiber, machine wear, the life cycle of the filter assembly, the breakage rate of spinning, the fiber physical and mechanical properties of impact, and therefore, the extinction dosage should not be too high, you should select the degree to which the extinction, in general, the amount tio2 rutile of titanium dioxide is added between 0.1% -0.3% when semidull, adding 0.5% to 2.5% as dull. Generally, in practice, the added amount of titanium dioxide 0.2% -0.5% of the extinction and can achieve a good whitening effect, obtained with the natural fiber of similar opacity, and the fiber strength, elongation no significant effect .
With the vigorous development of China's garment industry, chemical industry output is proportional to the development of chemical fiber and chemical fiber with titanium dioxide and black iron oxide total consumption is proportional to the fiber consumption will vary with the titanium dioxide industry growth and money increase dramatically. Next few years, the market demand for fiber with titanium dioxide or will gradually increase, production and sales of chemical fiber with titanium dioxide or profit growth point.
With the vigorous development of China's garment industry, chemical industry output is proportional to the development of chemical fiber and chemical fiber with titanium dioxide and black iron oxide total consumption is proportional to the fiber consumption will vary with the titanium dioxide industry growth and money increase dramatically. Next few years, the market demand for fiber with titanium dioxide or will gradually increase, production and sales of chemical fiber with titanium dioxide or profit growth point.
Magnesium hydroxide classification and presentation
Magnesium when heated (340-490 degrees) decomposes to absorb the combustion flame retardant surface heat; while releasing heat stabilizer for panel large amounts of water dilute combustible surface oxygen, decomposition of the active magnesium oxide attached to combustible surfaces to prevent further the burning proceed. Magnesium hydroxide flame retardant in the whole process not only does not produce any harmful substances, and its decomposition products in a fire, while also able to absorb a lot of rubber, plastics and other polymer produced by combustion of harmful gases and smoke, constantly absorbing active magnesium oxide unburned melt residues butyl stearate from the combustion stop soon while eliminating smoke, preventing droplet, is an emerging environmentally friendly inorganic flame retardants.
Flame retardants can be classified according to the chemical composition of organic and inorganic flame retardants two categories. Organic phosphorus flame retardants are divided into two series, and halogen. Since the existence of organic flame retardants toxic decomposition products, smoke and other shortcomings, are gradually being titanium dioxide replaced by inorganic flame retardants.
The main varieties are inorganic flame retardant aluminum hydroxide, magnesium hydroxide, red phosphorus, antimony oxide, tin oxide, molybdenum oxide, ammonium molybdate, zinc borate, in which aluminum hydroxide and magnesium hydroxide due to the endothermic decomposition of large and produce H2O can play the role of the absence of air, its decomposition temperature oxide material is therefore two kinds of flame retardants can not only play the role, but also can play a role in filling, it has no corrosive halogen gas and harmful gases, non-volatile, long lasting, non-toxic, smokeless, no drip characteristics.
Flame retardants can be classified according to the chemical composition of organic and inorganic flame retardants two categories. Organic phosphorus flame retardants are divided into two series, and halogen. Since the existence of organic flame retardants toxic decomposition products, smoke and other shortcomings, are gradually being titanium dioxide replaced by inorganic flame retardants.
The main varieties are inorganic flame retardant aluminum hydroxide, magnesium hydroxide, red phosphorus, antimony oxide, tin oxide, molybdenum oxide, ammonium molybdate, zinc borate, in which aluminum hydroxide and magnesium hydroxide due to the endothermic decomposition of large and produce H2O can play the role of the absence of air, its decomposition temperature oxide material is therefore two kinds of flame retardants can not only play the role, but also can play a role in filling, it has no corrosive halogen gas and harmful gases, non-volatile, long lasting, non-toxic, smokeless, no drip characteristics.
2013年10月23日星期三
Use of lubricants in general precautions
Lubricants varieties are more commonly used external lubricants are paraffin wax, stearic acid and its salts; lubricants with relatively low molecular weight PE, PTFE, PP, etc. These low molecular weight aluminium stearate polymer is not only excellent lubricants, but also a good external lubricant. Sometimes, a lubricant effect is often not satisfactory, requires several lubricants used in conjunction with a compound resulting lubricant can play a role in many aspects. Better. The amount of lubricant is generally 0.5% to 1%.
In the selection of lubricant, should follow the following principles:
1, if the mobility of the polymer molding process has been to meet the needs of the major considerations lubricant meets the technical requirements, whether to facilitate stripping, in order to ensure internal and external balance.
2, external lubrication is satisfactory, you should see it in the molding, the plastic surface of the liquid film methyl tin stabilizer can form a complete, therefore, outside the melting point of the lubricant with the molding temperature should be close to, but note there are differences between 10-30 ℃ , so as to form a complete film.
3, the compatibility with the polymer medium size, internal and external lubrication balance, non-blooming, easy to scale.
4, the lubricant is excellent in heat resistance and chemical stability, does not decompose during processing, non-volatile, non-corrosive, non-polluting products, there is no toxicity.
In the selection of lubricant, should follow the following principles:
1, if the mobility of the polymer molding process has been to meet the needs of the major considerations lubricant meets the technical requirements, whether to facilitate stripping, in order to ensure internal and external balance.
2, external lubrication is satisfactory, you should see it in the molding, the plastic surface of the liquid film methyl tin stabilizer can form a complete, therefore, outside the melting point of the lubricant with the molding temperature should be close to, but note there are differences between 10-30 ℃ , so as to form a complete film.
3, the compatibility with the polymer medium size, internal and external lubrication balance, non-blooming, easy to scale.
4, the lubricant is excellent in heat resistance and chemical stability, does not decompose during processing, non-volatile, non-corrosive, non-polluting products, there is no toxicity.
2013年8月26日星期一
plasticizer cause male infertility
Plasticizer is causing male infertility: Phthalates are a class of plastics used in the main plasticizer and PVC processing aid flexible agent, because all kinds of plastic packaging fast food appeared in large numbers, making contact with people on the plasticizer opportunities have increased significantly. After 10 years of research found that phthalates in plastics plasticizer may be the cause behind male infertility. In animal experiments, we gave mice fed plasticizers and found decreased testis weight, smaller size, and degenerative changes in testes appeared decreased sperm count, sperm deformity rate increased. In certain doses, associated with the heat stabilizer for pipe two kinds of plasticizers used in mouse bone marrow micronucleus and sperm abnormality test results were positive. This shows that the plasticizer is a heritable cause chromosomal aberrations cleavage agent. Plasticizers body excretory phase current is not clear if the daily intake, it is easy to accumulate in the body, resulting in toxic effects. In order to reduce the exposure of childbearing age youth plasticizer, we recommend that antimony flame retardant young people of childbearing age to take the following self-protection measures: ① eat instant food in plastic packaging. ② not directly heated plastic packaged foods (such as bags of milk). ③ not in plastic food storage container and heated in a microwave. ④ without plastic bags placed hot fritters, cakes, Gao, hemp groups, and other fried fried foods. ⑤ the roadside food vendors to provide colorful small plastic bag shut. ⑥ strict implementation of 1 June 2008 China began to implement the plastic limit. This is not only beneficial to protect the environment, maintain the ecological balance, and help reduce the health hazards of plasticizers, especially for childbearing potential threat to the male reproductive capacity.
2013年7月25日星期四
New aluminum hydroxide
Development of new varieties, including:
(1) increasing the surface area of ??the aluminium hydroxide particles and ultra fine micronized, water vapor partial pressure of the particle surface decreased, aluminum hydroxide can be improved heat resistance and mechanical properties of the material, significantly enhanced flame-retardant effect, tests showed that the same Recipe average particle case of aluminum hydroxide
Diameter of 5μm, the oxygen index of 28, particle size <1μm, the oxygen index of 33.
(2) thermal decomposition of aluminum hydroxide and the reaction temperature of the material, can be synthesized in between the thermal decomposition temperature of new varieties, such as aluminum hydroxide and sodium carbonate eutectic at 300 ~ 350 ℃ decomposition discharge water and carbon dioxide, hydrogen chloride and smoke have a stronger inhibitory effect is
PVC, polyolefins excellent flame retardant.
(3) reducing the insoluble aluminum hydroxide ions especially sodium oxide content, the mass fraction of less than 0.2%.
(1) increasing the surface area of ??the aluminium hydroxide particles and ultra fine micronized, water vapor partial pressure of the particle surface decreased, aluminum hydroxide can be improved heat resistance and mechanical properties of the material, significantly enhanced flame-retardant effect, tests showed that the same Recipe average particle case of aluminum hydroxide
Diameter of 5μm, the oxygen index of 28, particle size <1μm, the oxygen index of 33.
(2) thermal decomposition of aluminum hydroxide and the reaction temperature of the material, can be synthesized in between the thermal decomposition temperature of new varieties, such as aluminum hydroxide and sodium carbonate eutectic at 300 ~ 350 ℃ decomposition discharge water and carbon dioxide, hydrogen chloride and smoke have a stronger inhibitory effect is
PVC, polyolefins excellent flame retardant.
(3) reducing the insoluble aluminum hydroxide ions especially sodium oxide content, the mass fraction of less than 0.2%.
2013年7月22日星期一
Scientific understanding of the proper use of the industry called plasticizers
For Taiwan, "plasticizer incident" caused an uproar, September 1, China Petroleum and Chemical Industry Association in Beijing hosted the National plasticizer industry work conference, proposed to scientific understanding of the plasticizer, the plasticizer industry norms development of downstream industries, strict supervision and reasonable use of plasticizers. Plasticizer industry called on the government departments to strengthen planning and management, increase policy and financial support to promote the upgrading of industrial structure plasticizers to meet the needs of the development of related industries.
Plasticizer (Taiwan called plasticizers) in the plastics, rubber processing products indispensable. At present, China has become the world's largest plasticizer production, importing and consuming countries. National plasticizer production capacity has exceeded 400 million tons, accounting for over 50% of the global total capacity, including phthalate plasticizer capacity accounted for 80% or more, and such plasticizers due to benzene, harmful to human health has been under strict international control. Annual consumption of plasticizer is 250 million tons, of which high-end varieties heavily dependent on imports, the annual import volume of nearly 30 million tons, according to People's Daily news, Weihai, Shandong Polymer Materials Co., Ltd. Shandong million figure has been successfully developed to produce Zero environmental toxic benzene safe plasticizer to achieve without the use of imported nationals would allow the possibility of completely non-toxic plasticizer, and the price is high relative to the micro-toxic plasticizer products is much lower.
Plasticizer (Taiwan called plasticizers) in the plastics, rubber processing products indispensable. At present, China has become the world's largest plasticizer production, importing and consuming countries. National plasticizer production capacity has exceeded 400 million tons, accounting for over 50% of the global total capacity, including phthalate plasticizer capacity accounted for 80% or more, and such plasticizers due to benzene, harmful to human health has been under strict international control. Annual consumption of plasticizer is 250 million tons, of which high-end varieties heavily dependent on imports, the annual import volume of nearly 30 million tons, according to People's Daily news, Weihai, Shandong Polymer Materials Co., Ltd. Shandong million figure has been successfully developed to produce Zero environmental toxic benzene safe plasticizer to achieve without the use of imported nationals would allow the possibility of completely non-toxic plasticizer, and the price is high relative to the micro-toxic plasticizer products is much lower.
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