Stabilizers for PVC and many kinds of different combinations

Stabilizers for PVC and many kinds of different combinations, generally can be classified according to the chemical composition of lead salts, metal soaps (such as stearic acid metal soaps, including barium, cadmium, calcium, lead and zinc soap, etc.), organic tin , epoxy esters and chelating agents (such as phosphorous Type).
Currently, lead salt stabilizer is still the  magnesium stearate largest amount of a class of stabilizers. In these products, a product can be made into powder, granular, flake and pellets can melt and so on. "One package" type products is likely to exist between additive synergies, thereby enhancing the stabilizing effect, and eliminates the need for cumbersome to calculate the amount of the aid to facilitate the user's use and storage, but also reduce the waste of resources and environmental pollution . Foreign markets products AKGros representative of Interlite series. Lead salt heat stabilizer lower than the average growth rate of demand growth or negative growth trend, while the tribasic lead sulphate  complex (especially non-toxic Ca / Zn) heat stabilizers demand growing faster than average growth rate, the reason is that strict environmental regulations worldwide oriented, national attention to the environment due to human survival. Due to the global limit toxic heavy metal salts in the PVC processing applications, products accelerated restructuring, new products, new formulations developed very active.
 The traditional single lead salt powdered, granular single lead salts and crisp like a single lead salt, the latter is to eliminate both powdered lead salts in the production and use of lead salts of dust pollution, improve safety production. But in terms of lead salts of lead oxide content, it is no longer just about 90%, but to develop in the direction of  n-butyl stearate low lead content and low toxicity. At present, foreign direct synthesis reaction has ceased production made of tribasic lead sulfate, lead salt on the market stabilizer, dispersing after surface treatment are the good performance of these products or with a mixture of other additives.
As countries PVC processing technology, equipment, and extrusion speeds increase, and global increasingly stringent environmental requirements of the thermal stabilizer more stringent requirements, heat stabilizers general trend is to the non-(low) lead , cadmium, low dust, compound effectively and easily dispersed direction, to environmental protection, the development of special type.
Another focus of development is the set of stability, lubricity, oxidation resistance, UV resistance and flame resistance in one, made of composite stabilizer. Multiple composite "one package" type products become market development