高填充聚乙烯体系中碳酸钙对模头析出的影响  

Influence of Inorganic Filler on Die Drool Phenomenon in Highly-filled Polyethylene Systems

作　　者：钱梦莎 李力 王斌 陈平绪 Qian Mengsha;Li Li;Wang Bin;Chen Pingxu(National Engineering Laboratory for Plastic Modification and Processing,Kingfa Science and Technology Co.,Ltd.,Guangzhou 510663,China)

机构地区：[1]金发科技股份有限公司塑料改性与加工国家工程实验室,广东广州510663

出　　处：《广东化工》2021年第12期9-12,共4页Guangdong Chemical Industry

摘　　要：在无机填料高填充的聚合物体系中,除了流动过程中聚合物熔体的粘弹性行为外,填料也是引起析出的一个重要因素。本工作研究了碳酸钙高填充聚乙烯的模头析出现象。通过析出实验、流变性能、扫描电镜图像及热性能等测试结果,分析填充聚合物的析出物成分和填料的填充量、粒径及其分布以及表面处理等因素对混合物模头析出的影响。In highly-filled polymer systems,the die drool phenomenon is not only caused by the viscoelastic behavior of the polymer melts during the flow,the filler is also an important factor.In this work,the drool phenomenon of calcium carbonate-filled polyethylene was studied.Based on the results of die drool experiments,rheological properties,SEM images,and thermal properties,the characteristics of the drooled sample of the filled systems and the influence of filling content,particle size and distribution,and surface treatment were investigated.

关 键 词：高填充聚乙烯 碳酸钙 模头析出 挤出 表面处理 

分 类 号：TQ[化学工程]