PVC stabilizer 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 stability and prevent its decomposition, the aging of reagents. PVC heat stabilizer itself does not have heat stability, and only together with the main stabilizer and use, will produce heat stabilizing effect, and the effect of promoting stability in the primary PVC stabilizer. Secondary thermal stabilizers generally do not contain metal, which is also called a non-metallic heat PVC stabilizer  . Liquid PVC stabilizer in the country more popular are: liquid 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.