聚磷酸三聚氰胺/季戊四醇/水滑石阻燃体系改性EVA热塑性弹性体的研究  

Study on EVA Thermoplastic Elastomer modified with Melamine Polyphosphate/Pentaerythritol/Layered Double Hydroxide Flame-retardant Systems

作　　者：王婷婷[1] 黄国波[1] 徐丹丹[1] 黄秀秀[1] 

机构地区：[1]台州学院医药化工学院,浙江临海317000

出　　处：《特种橡胶制品》2011年第3期5-8,共4页Special Purpose Rubber Products

基　　金：浙江省大学生科技创新活动计划(新苗人才计划)(2010R428016);浙江省自然基金(Y4110026)项目资助

摘　　要：采用聚磷酸三聚氰胺/季戊四醇(MPP/PER)膨胀阻燃体系与水滑石(LDH)并用阻燃改性乙烯—醋酸乙烯酯(EVA)热塑性弹性体。结果表明,当EVA/MPP/PER/LDH质量比为60/20/10/10时,复合材料阻燃级别达到UL94V-0,极限氧指数(LOI)为30.6%。TGA分析结果表明,阻燃体系MPP/PER和LDH协同效应提高了EVA热分解残留率。炭层扫描电镜(SEM)分析表明,MPP/PER与LDH协同作用有利于形成连续致密的炭层,提高了EVA/MPP/PER/LDH复合材料的阻燃性能。In order to improve the flame resistance of Poly（ethylene-co-vinyl acetate）（EVA） thermoplastic elastomer,the flame retardant systems of melamine polyphosphate/pentaerythritol（MPP/PER） and layered double hydroxide（LDH） were used.The results showed that when the mass ratio of EVA/MPP/PER/LDH was 60/20/10/10,the flame resistance of the composite reached UL94V-0,and its LOI was 30.6%.TGA results showed that the residual rate of thermal decomposition of EVA was improved by the synergistic action of MPP/PER and LDH.The structure of char was investigated by scanning electronic microscopy（SEM）.The results showed that the synergistic action of MPP/PER and LDH was contribute to form the continuous-dense char on the surface of EVA/MPP/PER/LDH composite,and the flame resistance of the composite was improved.

关 键 词：聚磷酸三聚氰胺 季戊四醇 水滑石 阻燃 复合材料 乙烯—醋酸乙烯酯 

分 类 号：TQ334.1[化学工程—橡胶工业]