The main role of dibasic lead phosphite

English name : Dibasic lead Phosphite
MF : 2PbO · PbHPO3 · H2O
Properties: white or slightly yellow powder. Sweet poisonous. Density of 6.1 , the refractive index of 2.25 , at about 200 ℃ becomes gray and black , about 450 ℃ turns yellow . And all of the water-insoluble WSD aluminium stearate  organic solvent , dissolved in hydrochloric acid , nitric acid. Has excellent weather resistance properties , thermal stability, electrical insulating properties , and resistance to oxidation and ultraviolet shielding performance.
Uses : polyvinyl chloride and polyvinyl chloride / polyethylene copolymer heat stabilizer. Mainly used for opaque hard and soft WSD Titanium dioxide rutile  goods, especially outdoor cables, building panels , corrugated sheet , pipe and so on. Dihydrochloride ( short) is a monomer lead salt , lead salt stabilizer is a composite material , the effect is not used alone , the need for different uses , tribasic lead sulfate was added , and the lead oxide in the formulation can lead stearate use the successful application of nano-scale high-purity rare earth elements BAUER (BAOHUA) efficient , non-toxic calcium zinc stabilizers rare in an efficient , high WSD PVC flame retardant  environmental known. No smell, dispersibility , fluidity, stability, weather resistance , and excellent transparency . Is the best environmental alternative to organic tin compound lead, lead and rare earth compound stabilizer .

Some simple analysis of heat stabilizer for shoes

A) cadmium, zinc soap is typical of early-type heat stabilizers, can quickly absorb HCL, and effectively substituted with carboxylate PVC unstable chlorine atom in the catalytic chain Cd, Zn, thereby effectively suppressing early degradation and coloring , but because of the WSD Plastic impact modifier  consumption of fast and transformation products CdC12, ZnC12, but also off the HCL efficient catalyst PVC, PVC and thus lead to the degradation of the material suddenly vicious black, so poor long-term thermal stability.
2) barium, calcium soaps are typically long-term thermal stabilizers, absorption HCL function only and therefore can not inhibit coloring PVC, but the conversion product BaC12, CaC12 do not have  WSD zinc stearate catalytic activity, does not cause a sudden black PVC, long-term heat stability better.
3) fatty acids, organic tin are intermediate, both absorption HCL, can effectively replace with carboxylate unstable chlorine atoms PVC chain, and transformation products do not have catalytic activity.
4) mercaptan organotin it has versatile features, while a variety of mechanisms can stabilize PVC, transformation products do not WSD Polyethylene wax  have catalytic activity, and therefore both excellent initial and long-term thermal stability effect. First of cadmium and zinc compounds are used as stabilizers because of their transparency, and can maintain the original color of PVC products. Long term thermal stability provided by the pot is much smaller than the barium and zinc compounds. They tend to be very small in the case of threatened or without warning, suddenly completely degraded.

PVC flame retardant future trends

People's lives , the most used items are plastic products, manufacture

of plastic products are made ​​from a polymer  WSD zinc stearate material , most plastic

products by PE, PP, ABS, PBT, PO, PA and other plastic materials with

excellent performance , these characteristics have flammable materials ,

generated a lot of smoke when burning machine toxic gas , people

poisoning, serious cause great harm to the human body .
   The flammability of plastic products bring to our lives a great

security risk, therefore , the development of a class of flame retardant

products that can be added to plastic products , play a retardant effect

is the vast number of plastic products manufacturers and people

requirements.
  Environment and conditions for combustion , flame retardant products are

appropriate to develop it. Our analysis is the  WSD Titanium dioxide rutile first element of the

combustion heat, oxygen and fuel. Flame through endothermic effect,

covering the role of several chain reaction mechanism , the role of non-

combustible gases , such as suffocation inhibition play retardant effect.
  For certain requirements added flame retardants used , without

compromising the physical properties of plastics. With weather resistance

, durability , and even lower prices , so as to use a wide range .

Retardants future trends in 10 years of the 21st century , the global

flame retardant industry will maintain a moderate growth rate, the main

development trends in the next 10 years retardants are: halogenated flame

retardants ( including halogen-containing phosphate ) will will continue

to be used , and the amount may still be a slight increase, but the

product mix will be adjusted , polybrominated diphenyl ethers and other

people will be cautious in dealing with ; intumescent flame retardant

phosphorus and nitrogen and nitrogen-based system will be further the

development and the favored ; non-toxic, inorganic halogen-free flame

retardant and smoke suppression , such  WSD Chlorinated paraffin as modified aluminum hydroxide ,

magnesium hydroxide, zinc borate , magnesium hydroxide can be used

especially in high temperature , will further been developed ; smoke

Suppressant market prospects ; retardants field calls for more regulations

and standards come out.

Metallic stearate and stearic use production methods

Stearate, stearic acid, the scientific name, also known as stearic acid, white or creamy-white powder or crystalline lumps, which has a cross-section of microstrip shiny fine needle-like crystals; similar  WSD Aluminum hydroxide grease micro odorless, tasteless .
The main industrial oils produced by hydrolysis. After the current domestic sources of stearic basically been to import palm oil by catalytic hydrogenation, hydrolysis during high pressure, fatty acids off the light, and then vacuum distillation system.
Mainly for the production of stearic acid salts, for example: calcium stearate, lead stearate, magnesium stearate, iron base.
  The company set the development, production, sales WSD Plastic impact modifier  and service PVC composite stabilizer, stearic acid salts as a whole, the main products are calcium stearate, aluminum stearate, zinc stearate, potassium stearate, stearic acid lead, ammonium stearate, sodium stearate, magnesium stearate, cadmium stearate, barium stearate, iron stearate product.

Action of heat stabilizers and PVC flame retardant rubber compound of the conveyor belt

 Heat stabilizer is an important class of plastics processing aids , the birth and development of the PVC resin, heat stabilizer synchronization processing is mainly used for PVC resin , heat stabilizer and  WSD Chrolinated polyethylene so PVC resin , the ratio of hard and soft PVC products are a close relationship.
Also known as flame retardant agents, flame retardants or flame retardants : flammable polymer flame resistance conferred functional additives ; By Application divided into additive flame retardant and reactive flame retardant . According to the composition , including adding an WSD chromium oxide  inorganic flame retardant , halogen -based flame retardant ( organic bromides and organic chlorides ) , phosphorus-based flame retardants ( red phosphorus, phosphate esters , and halogenated phosphates , etc.) and nitrogen flame retardants .

Thermal stabilizers in PVC conveyor gum base resin is mainly used to improve the thermal stability of PVC resin in the processing and use , to extend the service life of the article . Such additives include tribasic lead sulfate , barium cadmium zinc liquid stabilizer . The flame retardant effect of the polymer material in the ignition of the flame spread rapidly Buzhi Yu , suppressing flames and heat from the WSD stearic acid  air. Such as antimony trioxide , zinc borate , aluminum hydroxide and the like. Both formulations have a different action can be selected according to the rubber compound formulation conveyor specific purposes.

Application of the principles of heat stabilizer for shoes and some of the main content

The main stabilizer mixture according to tin, lead and the metal of group A, such as blood, barium, copper, zinc classification. Tin stabilizers: 1 or 2 comprising a tin-carbon bond, oxygen or sulfur as  WSD one pack stabilizer the remaining valence bond - tin bond unsaturated anionic tetravalent tin compounds are the most effective stabilizers for PVC. These organic tin compounds are tin oxide or an organic product with the appropriate acid chloride or ester reactions. Synergistic stabilizer mixture are common, typically include various organotin compounds and stream-based wavelet salt (compound) and the auxiliary additives, such as zinc soaps, phosphites, epoxides, esters, ultraviolet absorber, antioxidant agent. Obviously, most of the synergistic composition has a special, and therefore they have not yet WSD PVC lubricants  found fully common. Organotin stabilizers are divided into two types of sulfur and sulfur-free. Sulfur-containing stabilizers are all stable, excellent performance, but the presence of sulfur compounds similar to the taste and cross contamination problems station. Lead salt stabilizer compound, lead oxide content greater than 50%, compared with the conventional stabilizing agents, can reduce the amount of 10% to 30%, with a high efficiency and stability, and without grinding, directly into a kneading pot used for cable material, not only excellent in dispersibility, but also to maintain good  WSD zinc stearate electrical and mechanical properties of PVC. The organic / inorganic composite heat stabilizer S Series microcrystalline tribasic lead sulfate, the product of the reaction crystallization process, the original long needle becomes microcrystalline, thus greatly improving stabilizers in PVC resin dispersion and thermal stability. Low lead compound stabilizer KD series, with outstanding thermal stability

The main purpose and introduce phosphate dibasic lead

Usually used as a reducing agent and pesticide intermediates. Whitening agent used in the manufacture of nylon , plastic stabilizer , synthetic fibers, dibasic lead phosphate , glyphosate, water treatment  WSD Titanium dioxide rutile agent , such as potassium dihydrogen phosphate and sodium ATMP manufacturing phosphite , synthetic fibers, plastics and stabilizers organophosphorus pesticide raw materials. Polycarbonate can be used as a stabilizing agent , also used in the manufacture of nylon 1010 antioxidant , but also for the production of highly efficient water treatment agent ATMP.
English name : Dibasic lead Phosphite
MF : 2PbO · PbHPO3 · H2O Properties: white or  WSD PVC lubricants slightly yellow powder. Sweet poisonous. Density of 6.1 , the refractive index of 2.25 , at about 200 ℃ becomes gray and black , about 450 ℃ turns yellow . And all of the water-insoluble organic solvent , dissolved in hydrochloric acid , nitric acid. Has excellent weather resistance properties , thermal stability, electrical insulating properties , and  WSD Aluminum hydroxide resistance to oxidation and ultraviolet shielding performance. Lead content ( PbO dollars ) % 89.0-91.0 89.0-91.0 88.5-91.5
Phosphorous acid (H3PO3 meter ) % 10.0-12.0 10.0-12.0 9.0-12.0 Heating loss % ≤ 0.30 0.40 0.60 Residue (75μm sieve )% ≤ 0.30 0.40 0.80 Purpose: PVC and PVC / polyethylene copolymer heat stabilizer composition . Mainly used for opaque hard and soft goods, especially outdoor cables, building panels , corrugated sheet , pipe and so on.

Some simple request intenal lubricant's

pvc lubricants lubricants can be divided into two kinds of internal and external lubricant pvc pvc, pvc external lubricant main role is to improve the frictional heat the metal surface of the polymer melt and processing equipment. It is less compatible with the polymer is easy to migrate out from the melt, so the lubrication can be formed in a thin WSD Polyethylene wax  layer of plastic and metal melt interface. pvc lubricants have good compatibility with the polymer properties, 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; internal lubricant is a low molecular weight polymer. Function of some other lubricants. Each lubricant has actually can achieve a required role in 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, pvc in the lubricant will be squeezed out and become pvc external lubricant. 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: (1) the flow properties of the polymer molding process needs have been met, then the role of the main considerations lubrication to ensure internal and external balance; ( 2) lubrication is valid, 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 be so as to achieve the following requirements: (4) moderate size, the internal balance and external lubrication resin compatibility effect; non-blooming, easy scaling; (5) surface gravity is small, small viscosity, the expansion of the interface, easy to form an interface layer;
(6) as far as possible without reducing the  WSD Metallic stearate 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.
However, the mere use of a lubricant is often difficult to achieve the purpose, to be used in combination of several lubricants, lubricating composite developed rapidly in recent years, the choice can be to look at the role of multi-angle lubricant. Commonly used lubricants are stearic acid, butyl stearate, oleic acid amide, ethylene bis stearic acid amide.
Many substances can be used as a lubricant wax, natural waxes such as liquid paraffin (mineral oil), microcrystalline wax, etc., but the effect is mixed. Natural waxes more to do with external lubrication, the lubricant can be used as a variety of plastic, a release agent, generally the amount of 0.2 ~ 1phr, but its compatibility, thermal stability and dispersibility is not good, the amount is not too large, and preferably lubricants and use; while shortening more to do with PVC, PS, lubricants, lubricating properties, thermal stability is also very good, the general amount 0.5phr they are drug-free, can be used for food packaging. Another kind of microcrystalline wax: in the plastic processing is also used as a lubricant in an amount of 1 ~ 2Phr, good thermal stability and lubricating property than normal paraffins. Low molecular weight polymers are widely used as a lubricant such as polyethylene wax, low molecular weight polypropylene, the inner and  WSD Chlorinated paraffin outer are better lubricity, and non-toxic. Polyethylene wax materials suitable for PVC extrusion, calendering, the amount is generally 0.1 ~ 1phr, processing efficiency can be improved to prevent the adhesion of the film to improve the dispersion of fillers or pigments, compatibility and transparency is not good; irregular low molecular weight polypropylene as the structure rigid PVC, PE lubricant, excellent performance, other additives to improve dispersibility.

What are the characteristics of siliceous plastic lubricant

Product Features: Excellent moisture, waterproof, dustproof, shock-absorbing, blocking, buffering, noise lubrication, sealing and damping properties.
 Excellent high temperature performance: a wide temperature operating range applies (-40 ~ 200 ℃), good viscosity-temperature performance, eliminate carbide thermal oxidative stability, low temperature fluidity, temperature, temperature difference at different damping WSD Plastic impact modifier  torque results excellent, smooth, Excellent noise performance lubrication. Excellent adhesive properties: a high compression ratio of the oil molecules, very outstanding adhesion properties, the drawing performance is significantly (synthetic polymer materials and metal materials have high adhesion), good shear stability and electrical insulation, ultra Long reciprocating actuator life. Excellent stability: high chemical inertness (acid, alkali reaction is not active), the loss is not easy, not volatile at room temperature, no carbonation, no hardening resistance stable, very excellent mechanical stability, safe and nontoxic. Excellent compatibility: anti-corrosion, anti-rust, and most plastics and rubber, various WSD Chlorinated paraffin  media good compatibility. Recommended Applications:
1, between long-term lubrication for plastic / plastic, plastic / metal, metal / rubber low or wide temperature and sliding bearings, suitable for pneumatic valves, valve body and dynamic seals lubricated  piston and cylinder seal;
2, automotive transmission gear for extended temperature environments, the number of idle stepper motor, control cables (throttle, brake), fuser film lubrication closed permanently lubricated on the speedometer, printers, copiers fuser assembly;
3, for cold starting when needed to reduce the  WSD Stabilizers for pipe starting torque of the workplace, such as long-lasting lubrication electronic clock, cameras, optical instruments, transmitters, refrigerator fan bearings, mobile refrigeration equipment and servo gears.