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首页> 外文期刊>International Polymer Science and Technology >REGULATING THE PROCESSING PROPERTIES OF PVC MATERIALS WITH PRODUCTS BASED ON MODIFIED LOW MOLECULAR WEIGHT POLYBUTADIENE
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REGULATING THE PROCESSING PROPERTIES OF PVC MATERIALS WITH PRODUCTS BASED ON MODIFIED LOW MOLECULAR WEIGHT POLYBUTADIENE

机译:用改性低分子量聚二烯烃改性产品调节PVC材料的加工性能。

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摘要

The the effects of addition of maleinated low-molecular weight polybutadiene containing 0-20 wt.% of maleic acid groups on the melt index of poly(vinyl chloride) were examined by using a Brabender rotational plastograph. Addition of the maleinated oligobutadienes increased the thermal stability of unplasticised PVC. The effect was attributed to the combined effects of a reduction in the melt temperature, a reduction in the viscosity of the molten polymer, and scavenging by the carboxyl groups of the maleinated polymer of the hydrogen chloride released by thermal degradation of PVC. 3 refs.
机译:通过使用Brabender旋转塑性仪检查了添加0-20重量%的马来酸基团的马来酸化的低分子量聚丁二烯对聚(氯乙烯)的熔体指数的影响。马来酸化的低聚丁二烯的添加增加了未增塑的PVC的热稳定性。该效果归因于以下的综合效果:熔融温度降低,熔融聚合物粘度降低以及通过PVC的热降解释放的氯化氢的马来酸化聚合物的羧基清除。 3个参考

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