PVC stabilizer uses and Introduction

PVC stabilizer to increase the solution, gel, solid, chemical stability of the mixture are called stabilizers. It can slow down the reaction, to maintain chemical balance, reduce surface tension, to prevent the light, thermal decomposition or oxidation decomposition effect. Sources generalized chemical stabilizer is very extensive, mainly based formulation designed to designers, the flexibility to use any chemicals to achieve a stable product quality purposes. Narrowly speaking, mainly refers to maintain high polymer plastics, rubber, synthetic fibers, such as PVC stabilizer  and prevent its decomposition, the aging of reagents. With a stabilizer according to several different mechanisms to achieve thermal stability purposes. In food additives, PVC stabilizer is to make food structural stability, enhanced viscous solids of a class of food additives. Lead salt PVC stabilizer low price, good thermal PVC stabilizer , has been widely used. Composite thermal stabilizer of the various components can be adequately mixed in the course of production, with a significant improvement in mixing the resin dispersion uniformity. Composite heat PVC stabilizer of the various components can be adequately mixed in the course of production, with a significant improvement in mixing the resin dispersion uniformity. Liquid stabilizer more popular in the country are: PVC heat stabilizer barium zinc stabilizer, liquid calcium zinc stabilizers, liquid barium cadmium zinc stabilizers, liquid barium cadmium stabilizers, liquid potassium zinc catalyst foam stabilizer. New Century people more emphasis on environmental health, as the heavy metals cadmium, had been criticized, so the application scale is gradually reduced, and now the market is commonly used in liquid zinc and barium liquid calcium zinc. Little difference between the stability of the liquid, the liquid stabilizer generally has a greater solubility, and a good dispersibility in PVC resin powder, an effect on the transparency of the powder is also much less than the stabilizer. However, the risk of precipitation of the liquid stabilizer greater. Need to select a suitable solvent.