采用力化学方法制备新型抗冲母料增韧改性PVC  

Toughening PVC with new impact modification master batch prepared by mechanochemical method

作　　者：游峰[1] 邹嘉佳[1] 杨卓[1] 陈光顺[1] 郭少云[1] 

机构地区：[1]四川大学高分子材料工程国家重点实验室,四川成都610065

出　　处：《聚氯乙烯》2011年第4期26-29,共4页Polyvinyl Chloride

基　　金：国家科技支撑计划项目(编号:2007BAE10B02)~~

摘　　要：以PVC、纳米碳酸钙、CPE为原料,采用力化学处理工艺制备了新型抗冲母料,研究了母料的最佳配比,考察了母料对PVC力学性能、微观形貌和加工性能的影响。结果表明:①母料中纳米碳酸钙与PVC的最佳质量比为9∶1;②当母料V-90用量为15份时,试样具有最佳的冲击性能;③加入母料V-90的体系冲击断面呈现明显的韧性断裂形貌;④母料V-90可缩短PVC的塑化时间,增大最大转矩和平衡转矩,明显改善加工性能。A new kind of impact master batch was prepared from PVC, nano-CaCO3 and CPE by mechanochemical vibromilling process, and optimal formulation was investigated. Influences of master batch on mechanical properties, micromorphology and processing properties of PVC were studied. The results show that： 0 in the master batch formulation, the optimum mass ratio of nano-CaCO3/PVC is 9 ： 1; （2） when the dosage of V-90 is 15 parts, samples with the best performance can be obtained; （3） the ruptured surfaces of composites with Master Batch V-90 exhibit obvious ductile fracture pattern; （4） Master Batch V-90 can shorten the fusion time of PVC, increase its maximum torque and equiponderance torque, and improve its processing properties.

关 键 词：PVC 力化学 振磨 纳米碳酸钙 增韧 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]