电子束辐照交联PVC/EVA共混物的研究  

Electron Beam Irradiation Cross-linking of PVC/EVA Blend

作　　者：章长明[1] 李恩军[1] 潘祥江[1] 王仕峰[2] 张勇[2] 

机构地区：[1]上海氯碱化工股份有限公司技术中心,上海200241 [2]上海交通大学高分子材料研究所,上海200240

出　　处：《塑料工业》2003年第6期5-8,共4页China Plastics Industry

摘　　要：以丙烯酸酯类多官能团不饱和单体为交联敏化剂 ,采用电子束对聚氯乙烯 (PVC)与乙烯 醋酸乙烯共聚物 (EVA)的共混物进行辐照交联。研究了VA质量分数、交联敏化剂种类及用量、辐照剂量、EVA用量对共混物凝胶质量分数、力学性能以及热延伸性能的影响。结果表明 :EVA共聚物能促进PVC的辐照交联 ,增加共混体系的凝胶质量分数 ,改善其力学及热延伸性能 ;EVA共聚物中VA质量分数增大 ,共混体系的凝胶质量分数增大 。Polyvinyl chloride (PVC) and ethylene vinyl acetate, (EVA) copolymer were cross linked by electron beam (EB) irradiation, using allylic polyfunctional monomers as cross linking sensitizer The influences of irradiation dose, cross linking sensitizer kinds and content, EVA content and vinyl acetate mass fraction in EVA on the gel mass fraction ,hot prolongation and physical properties of the blend were investigated The results showed that gel mass fraction increased with the increases of radiation dose, cross linking sensitezers, EVA and VA mass fraction The use of EVA copolymer improved the cross linking effectiveness of irradiation, and the prolongation and physical property of PVC/EVA blend were enhanced greatly by the increase of EB mass fraction

关 键 词：电子束辐照交联 PVC/EVA共混物 聚氯乙烯 乙烯—酸酸乙烯共聚物 辐照交联 丙烯酸酯 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]