Definition of PVC heat stabilizer

PVC heat stabilizers are mainly used in PVC and other chlorine-containing polymers. It is found that PVC plastic can be processed and formed only at 160℃, and it begins to decompose at 120~130℃, releasing HCl gas. If the production of HCl is not inhibited, the decomposition will be further aggravated. This problem has been a major problem troubling the development and application of PVC plastics.The study found that if PVC plastic contains a small amount of impurities such as lead salt, metal soap, phenol, aromatic amine, it will not affect its processing and application, and can delay its thermal decomposition to a certain extent. The above problems can be solved, which promotes the establishment and continuous development of the research field of heat stabilizer.Quzhou Jianhuanan Hang Pharmaceutical Co., LTD., said that in a broad sense, all additives that can improve the thermal stability of polymers are called heat stabilizer. Due to the poor thermal stability of PVC, the vast ma...

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Emergency treatment methods for methyl tin mercaptan

Leak emergency treatmentIsolate the contaminated area of leakage, set warning signs around it, and restrict access. It is recommended that emergency personnel wear gas masks (full face masks) and protective clothing. Carefully pick up with a tool, place in a plastic bucket and transfer to a safe place. If a large amount of leakage, wash with a lot of water, and collect and recycle waste water storage tank or transported to the waste disposal site for disposal.Protective measuresQuzhou Jianhuanan Hang Pharmaceutical Co., LTD., said that respiratory system protection: when the concentration in the air is high, filter type gas mask (half mask) should be worn. It is recommended to wear air breathing apparatus during emergency rescue or escape.Eye protection: Wear chemical safety glasses.Body protection: Wear protective work clothes.Hand protection: Wear latex gloves.Other protection: Smoking, eating and drinking are prohibited in the workplace. Wash hands before meals. After work, shower a...

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To understand the performance characteristics of methyl tin mercaptan

1, heat stabilizer: in terms of thermal stability at present there is no other type of PVC stabilizer can exceed it, it has excellent high temperature chroma stabilizer and long-term dynamic stability. Therefore, it is the preferred PVC stabilizer for hard PVC, suitable for all PVC homopolymers, such as emulsion, suspension and bulk PVC as well as polyvinyl chloride copolymers, grafted polymers and copolymers.2, transparency: organic tin PVC stabilizer has transparency, the use of organic tin, especially mercaptan methyl tin heat stabilizer formula, you can get crystalline products, will not appear bleaching phenomenon. Because of this, SS-218A/TM-181-FS can be used in bottles, containers, bellows, various types of rigid packaging containers, hoses, profiles, films, etc.3, the product is non-toxic: mercaptan methyl tin is non-toxic green environmental protection stabilizer, mercaptan methyl tin in PVC migration very small, Quzhou Jianhuanan Hang Pharmaceutical Co., LTD., said that meth...

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Quzhou Jianhuanan Hang Pharmaceutical Co., Ltd. to take you to understand mercaptan methyl tin

Mercaptan methyl tin is one of the three organic tin varieties, transparent and bright viscous liquid, good compatibility with PVC, and C8-C12 fatty alcohol, C8-C12 fatty acid, phosphite fatty alcohol ester, oil and other weak polarity oil compatible, non-flammable, low freezing point, even at -20℃ is still a viscous liquid.Thiol methyl tin thermal stabilizer is a variety with good stability performance. The production method is as follows: Tin metal is methylated with chloromethane under the action of temperature 210-240℃, pressure 1.0-1.3MPa and amine phase transfer catalyst to generate methyl-tin chloride mixture. After disproportionation reaction, the content of trimethyl-tin chloride is controlled to be less than 0.1%. And then reaction with isooctyl mercaptoacetate, after the removal of chlorine to prepare this product. Organic tin industry varieties are mainly divided into methyl tin, butyl tin and octyl tin. Methyl tin is one of the most promising organic tin varieties becau...

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The development trend of PVC heat stabilizer

The development of PVC stabilizer brings a lot of convenience to our life. The research and development of each additive will derive PVC products that affect our life. PVC material is polyvinyl chloride, which can be seen everywhere in life, making anti-corrosion pipes, pipe fittings, oil pipelines, centrifugal pumps and blowers. Polyvinyl chloride hard board is widely used in the chemical industry to make a variety of storage tank lining, building corrugated board, door and window structure, wall decoration and other building materials. Because of the excellent electrical insulation performance, can be used in the electrical and electronic industry, for the manufacture of plugs, sockets, switches and cables. In everyday life, PVC is used to make sandals, raincoats, toys and artificial leather. These PVC products affect every aspect of our lives.The increasing demand for PVC products drives the development of this PVC stabilizer industry. PVC products affect our life, so the developmen...

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The characteristics of PVC heat stabilizer

compatibilityPeople always hope that PVC stabilizer in cooperation with species easy to disperse, made of products after long-term use without precipitation. However, when the compatibility of the stabilizer is poor, it will move from the inside of the product to the outside surface, and finally stay on the surface of the product. If the ejecta is a solid, powdery substance, it is called frosting; If it's a liquid, it's called sweating.Generally speaking, some metal soaps, lubricants and maleate organotin, easy to cause spray; Phosphite ester, phosphate ester and other PVC stabilizer will also increase the spray. For metal soap, the metal spray with low electronegativity is less; Aromatic acid root than fatty acid root spray less cream; The longer the carbon chain in the fatty acid root, the more severe the spray.transparency1. The transparency of PVC stabilizer and productsQuzhou Jianhuanan Hang Pharmaceutical Co., LTD., said that organotin, especially maleate and mercaptan or...

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The categories of PVC heat stabilizer are introduced

Generally according to the chemical components of the heat stabilizer to be classified, can be basic lead salt, metal soap, organic tin, epoxy compounds, phosphite ester, polyols, etc. If the role of the PVC stabilizer can be divided into main stabilizer and auxiliary stabilizer. The auxiliary stabilizer itself has little stabilizing effect or no thermal stabilizing effect, but it has synergistic effect when combined with the main stabilizer. The primary stabilizer is usually a thermal stabilizer containing metal. And epoxy compounds, phosphite esters, polyols and other pure organic compounds are generally used as auxiliary stabilizer.Quzhou Jianhuanan Hang Pharmaceutical Co., LTD., said that because to achieve the good stability of pvc, it is often necessary to use a variety of PVC heat stabilizer at the same time. Therefore, some commercial PVC stabilizer is composed of a variety of components to become a composite stabilizer, such as barium cadmium stabilizer, barium zinc stabilizer...

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