2014年8月26日星期二

WSD PVC stabilizer one pack stabilizer PVC Heat stabilizer Introduction and Safety

  WSD PVC stabilizer is one important class of plastics processing aids, the birth and development of a thermal stabilizer synchronization with PVC resin is mainly used for the processing of PVC resin, heat stabilizer and so the PVC resin, the ratio of hard and soft PVC products are a close relationship. Since the thermal energy, such as PVC stabilizer for profile  fillers, and other compatible polymers and many other materials, which is considered one of the most common polymers. Its main drawback is the differential thermal stability.
  The use of additives to change the polyvinyl chloride (PVC) and the operating characteristics of the physical appearance, but can not prevent the decomposition of the polymer. Although in the physical and chemical factors of the polymer material will always gradually destroyed, but the PVC stabilizer is called a class of substances can be effectively prevented, substantially reduced or even stop the degradation of the material. Security issues heat stabilizers have more and more people's attention. . Safety PVC stabilizers should consider three aspects, namely the safety of the use of raw materials processing, the second is the user's security, the third is the safety of waste on the environment. Processors security PVC heat stabilizer calcium stearate  measures can be liquefied by stabilizers, cream-based, granular, etc. to be addressed. For the user's safety, the molecular weight of the stabilizer may be prepared in a reactive stabilizer or to improve its resistance to pulling, but taking into account the effect of stabilizing the chemical reaction at the molecular level, the above method is not the most appropriate method, the most good way to still use high security stabilizers. In the choice of the stabilizer, the stabilization process must also be considered in the resin with a stabilizer, or stabilizing agents react with each other the resulting chemical safety.

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