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发明公开
CN105175928A 一种安全无毒聚氯乙烯组合物 有权

一种安全无毒聚氯乙烯组合物
摘要：
一种安全无毒聚氯乙烯组合物，属于高分子塑料技术领域。其特征在于，重量份组成为：聚氯乙烯100份，1，2-环己烷二甲酸二异辛酯（DEHCH）增塑剂45~60份，硬脂酸钙与硬脂酸锌复合稳定剂0.2~1.0份，环氧大豆油3~7份，亚磷酸三壬基苯酯0.5~1.5份，润滑剂0.1~0.5份；所述的聚氯乙烯VCM残留≤2ppm，平均聚合度在1000~1300，白度（160℃，10min）≥78%。本发明选用一种价格较环保增塑剂DINCH便宜、增塑效率高的增塑剂DEHCH，配合使用液体类辅助稳定剂，得到一种性能稳定、工艺简单、成本低、强度高的聚氯乙烯组合物；DEHCH代替了传统邻苯二甲酸酯类增塑剂，赋予了医用材料无毒环保及安全性。
摘要（英）：

The invention relates to a safe and nontoxic polyvinyl chloride composition, and belongs to the technical field of polymer plastics. The composition comprises, by weight, 100 parts of polyvinyl chloride, 45-60 parts of a di(2-ethylhexyl)-1,2-cyclohexane dicarboxylate (DEHCH) plasticizer, 0.2-1.0 part of a calcium stearate and zinc stearate composite stabilizer, 3-7 parts of epoxidized soybean oil, 0.5-1.5 parts of trisnonyl phenyl phosphite and 0.1-0.5 parts of a lubricant; and the VCM residual of the polyvinyl chloride is not greater than 2ppm, the average polymerization degree is 1000-1300, and the whiteness (160DEG C, 10min) is not smaller than 78%. The polyvinyl chloride composition with the advantages of stable performances, simple process, low cost and high strength is obtained through selecting a low-price and environmental-protection plasticizer DINCH and the cheap high-plasticizing efficiency plasticizer DEHCH and matching with the liquid auxiliary stabilizer; and the DEHCH substitutes a traditional phthalate plasticizer, and makes medical materials be nontoxic, environmentally friendly and safe.

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