相容剂对EVA／无卤阻燃共聚聚酯合金性能的影响  

Effect of Compatibilizer on Properties of EVA/Halogen-free Flame Retardant Copolyester Alloy

作　　者：周浩[1] 郑明嘉 雷小均 胡兵 苏俊业 陈锬 

机构地区：[1]西南科技大学,四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,四川绵阳621010 [2]绵阳东方特种工程塑料有限公司,四川绵阳621000

出　　处：《中国塑料》2013年第3期37-41,共5页China Plastics

摘　　要：以高熔体流动速率聚合物(150-W)作为乙烯-醋酸乙烯酯共聚物(EVA)/无卤阻燃共聚聚酯(P-PET)合金的非反应性相容剂,采用熔融挤出法制备了以EVA为基体的EVA/P-PET合金,并研究了150-W对合金性能的影响。结果表明,150-W提高了合金的综合性能,EVA/P-PET/150-W配比为60/30/10时,拉伸强度和断裂伸长率比不含150-W的体系分别提高了148.4%和283.1%,同时改善了合金的加工性能;少量150-W(≤10%)的加入对合金的阻燃性能无明显影响;150-W的加入促进了界面层的形成,增强了界面处的粘接,从而提高了体系相容性;150-W的加入使P-PET的玻璃化转变温度向EVA的玻璃化转变温度靠近。A high melt flow index polymer 150-W was introduced into an alloy of ethylene- vinylacetate （EVA）and halogen-free flame retardant copolyester （P-PET） as a non-reactive compatibilizer during melt extrusion. The effect of 150-W on properties of EVA/P-PET alloy was evaluated. It was showed that when EVA/P-PET/150-W was 60/30/10, the tensile strength and elongation at break were increased 148.4 % and 283. 1 }/00, respectively, based on neat alloy. The processing properties were also improved. Adding a small amount of 150-W （≤10 %） had no significant effect on the flame retardant performance of the blending system. The addition of 150-W promoted the formation of the interfacial layer and enhanced the bonding at the interface. 150-W induced the glass transition temperature of P-PET shifting towards lower temperature.

关 键 词：乙烯-醋酸乙烯酯共聚物 无卤阻燃共聚聚酯 合金 相容性 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]