PVC heat stabilizers thermal degradation and chemical principles

Thermal degradation of PVC industrial production mainly due to its molecular structure containing labile defects. Currently, the synthesis can not fundamentally improved methods and processes to avoid or reduce the generation of defects, so adding "thermal stabilizer" PVC improve thermal stability. In practical applications requiring heat stabilizers have a more comprehensive performance, any one of a single  Glycerol monostearate  component heat stabilizers are unable to meet. Thermal stabilizers actual synergistic effect on the development of composite system design principles, called compound heat stabilizer. Zinc-based composite thermal stability synergy: synergistic heat stabilizers "and in HCl", HCl and ZnCl2 concentration inhibiting growth weakened HCl catalytic thermal degradation of PVC, PVC to improve long-term stability; synergistic heat stabilizers and HCl protect the main stabilizing effect
Given agent, slowing consumption, thereby slowing the rate of PVC discoloration. Main effect of chlorine stabilizer instability suppression by replacing PVC heat
Degradation triggered not only suppressed discoloration of PVC, while also protecting the heat stabilizer synergist, slowing its consumption. PVC is one of the world's five common plastics in China, the first one of its consumption. China's economic development, especially the  azodicarbonamide development of urbanization and real estate, to make PVC building materials in China was a great opportunity for development, its demand substantial growth; addition, transportation, communications and other fields demand for PVC resin was rapid growth. PVC profile windows and doors for cold insulation, weather resistance and good corrosion resistance, environmental compliance, energy consumption than ordinary steel doors and windows can save 17%. China's total energy consumption of building energy consumption accounted for about 1/4, building insulation performance, energy consumption accounted for 50% of housing energy waste. Today's increasingly global concern for environmental issues to prevent climate warming, the application of different doors and windows will have new potential. Thermal stabilizer the  performance of the basic thermal stability, processing and weathering resistance. With the development of the plastics industry, and other performance additives accompanied exist, the optimized design of the "one package" of products are PVC heat stabilizers entered a mature stage of the landmark achievements. Balanced overall performance, cost-effective, environmentally friendly
Good, easy to customize and enhance production efficiency, "a pack" of composite stabilizer, is expected to be in the world
Generally welcomed, and become the future development trend.