摘要
采用液态高分子改性剂对CaCO_3进行包覆改性,得到高分子表面修饰CaCO_3(CLCC)。使用转矩流变仪、紫外可见分光光度计及白度测定仪对聚氯乙烯(PVC)/CaCO_3复合材料和PVC/CLCC复合材料的加工性能进行了研究。结果表明,CLCC颗粒的加入可以缩短PVC的塑化时间,改善其加工性能,提高PVC生产效率;而抑制了PVC在熔融加工过程中的降解;PVC/CLCC复合材料的白度保持率高于PVC/CaCO_3复合材料。
CaCO3 was coated with a liquid polymer modifier leading to molecular modified CaCO3 composites （CLCC）, which was introduced into PVC. The processability of PVC/CaCO3 and PVC/CLCC systems were investigated by using torque rheometer, whiteness test, and UV-vis spectrophotometer. It was found that the CLCC particles had fine plasticization effect on PVC, and could restrain the decomposition of PVC resin during melting process. The whiteness retention of PVC/CLCC was higher than that of PVC/CaCO3 systems.
出处
《中国塑料》
CAS
CSCD
北大核心
2015年第11期50-54,共5页
China Plastics
基金
湖北省教育厅科学技术研究计划青年人才项目(Q20142702)
关键词
聚氯乙烯
加工性能
塑化时间
降解
poly（vinyl chloride）
processability
fusion time
degradation
