首页 | 本学科首页   官方微博 | 高级检索  
     

界面作用对HDPE/POEg/CaCO_3三元复合材料韧性的影响
引用本文:解廷秀,刘宏治,欧玉春,杨桂生. 界面作用对HDPE/POEg/CaCO_3三元复合材料韧性的影响[J]. 高分子学报, 2006, 0(1): 53-58
作者姓名:解廷秀  刘宏治  欧玉春  杨桂生
作者单位:1. 上海杰事杰新材料股份有限公司研发中心,上海,201109
2. 中国科学院化学研究所高分子科学与材料联合实验室,北京,100080
3. 上海杰事杰新材料股份有限公司研发中心,上海,201109;中国科学院化学研究所高分子科学与材料联合实验室,北京,100080
基金项目:国家自然科学基金;中国科学院资助项目
摘    要:通过界面改性,制备了以CaCO3为核,马来酸酐接枝乙烯-辛烯共聚物弹性体(POEg)为壳的高密度聚乙烯(HDPEg)/弹性体(POE)/CaCO3的三元复合材料.由于“核-壳”结构的形成,弹性体和CaCO3表现出协同的增韧作用.同未经表面处理的CaCO3复合材料相比,在相同的CaCO3含量的情况下,表面处理的CaCO3由于与弹性体形成更强的界面粘结,使得三元复合材料的“脆-韧”转变发生在较低的弹性体含量.

关 键 词:协同增韧作用  核-壳结构  界面粘结  聚烯烃
收稿时间:2004-08-16
修稿时间:2004-09-20

EFFECT OF INTERFACIAL INTERACTION ON THE TOUGHNESS OF HDPE/POEg/CaCO3 TERNARY COMPOSITES
XIE Tingxiu,LIU Hongzhi,OU Yuchun,YANG Guisheng. EFFECT OF INTERFACIAL INTERACTION ON THE TOUGHNESS OF HDPE/POEg/CaCO3 TERNARY COMPOSITES[J]. Acta Polymerica Sinica, 2006, 0(1): 53-58
Authors:XIE Tingxiu  LIU Hongzhi  OU Yuchun  YANG Guisheng
Abstract:High-density polyethylene/elastomer/calcium carbonate ternary composites with dispersed phase of calcium carbonate as a core and maleated elastomer(ethyleneoctane copolymer) POEg as a shell were prepared through the reactive extrusion.The improvement of impact strength of HDPE/POEg was limited due to the high miscibility between them.The introduction of CaCO_3 had a negative impact on the toughness of the HDPE matrix because of the poor interfacial adhesion.However,in these ternary composites,the calcium carbonate and elastomer showed synergistical toughening effects on the HDPE matrix as a result of the formation of core-shell structures due to the strong interaction between POEg and CaCO_3,which improved the HDPE-CaCO_3 interfacial strength and the toughness of the blends.The brittle-ductile transition occurred at lower contents of POEg for surface treated calcium carbonate based ternary composites compared with the untreated calcium carbonate based ones.
Keywords:Synergistically toughening effects  Core-shell structure  Interfacial adhesion  Polyolefin
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号