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EVA/MCA复合体系的燃烧性能与炭层结构
引用本文:冯钠,陈涛,张桂霞,李红,刘茜.EVA/MCA复合体系的燃烧性能与炭层结构[J].合成树脂及塑料,2008,25(1):62-65.
作者姓名:冯钠  陈涛  张桂霞  李红  刘茜
作者单位:大连工业大学化工材料学院,辽宁,大连,116034
摘    要:以乙烯-乙酸乙烯酯共聚物(EVA)为基体树脂,以氰尿酸三聚氰胺(MCA)为阻燃剂,研究了EVA/MCA复合体系的燃烧性能,并对燃烧炭层进行了分析.结果表明,MCA改善了EVA/MCA体系的燃烧性能,消除了燃烧滴落现象,抑制了黑烟的产生.随着MCA添加量逐渐增大,氧指数由18.0%提高到26.1%,当MCA添加量为80质量份时,体系成为难燃材料.当MCA添加量分别为50,60,80质量份时,EVA,MCA复合体系的阻燃级别依次可以达到FV-2级,FV-1级,FV-0级.随着MCA添加量的增加,燃烧试样表面的炭层逐渐增多,致密程度提高;随着燃烧时间的增加,燃烧试样内部的孔洞增多,孔径变大.

关 键 词:乙烯-乙酸乙烯酯共聚物  氰尿酸三聚氰胺  可燃性  炭层结构
文章编号:1002-1396(2008)01-0062-04
收稿时间:2007-08-21
修稿时间:2007-11-23

Flammable properties and the charred layer structure of EVA/MCA composites
Feng Na,Chen Tao,Zhang Guixia,Li Hong,Liu Qian.Flammable properties and the charred layer structure of EVA/MCA composites[J].China Synthetic Resin and Plastics,2008,25(1):62-65.
Authors:Feng Na  Chen Tao  Zhang Guixia  Li Hong  Liu Qian
Affiliation:Feng Na,Chen Too,Zhang Guixia,Li Hong,Liu Qian (Department of Chemical Engineering , Material,Dalian Polytechnic University,Dalian 116034,China)
Abstract:The authors prepared a kind of flame retardant composite,taking ethylene-vinyl acetate copolymer (EVC)as matrix resin and melamine cyanurate(MCA)as flame retardant.The flammability of EVA/MCA composite was studied;the charred layers were analyzed.The results show that MCA can improve the flammability of EVA/MCA,eliminates the drippage phenomenon in burning and suppress the emission of smoke during combustion.As the dosage of MCA escalates,the limiting oxygen index(LOI)increases from 18.0%to 26.1%;in case of...
Keywords:ethylene-vinyl acetate copolymer  melamine cyanurate  flammability  charred layers
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