文献类型：期刊文献

英文题名：Investigation of free volume and the interfacial, and toughening behavior for epoxy resin/rubber composites by positron annihilation

作者：Zeng Minfeng[1];Sun Xudong[1];Xiao Huiquan[1];Ji Genzhong[1];Jiang Xuewen[1];Wang Baoyi[2];Qi Chenze[1]

机构：[1]Shaoxing Univ, Inst Appl Chem, Shaoxing 312000, Peoples R China;[2]Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

年份：2008

卷号：77

期号：3

起止页码：245

外文期刊名：RADIATION PHYSICS AND CHEMISTRY

收录：SCI-EXPANDED(收录号：WOS:000253781400005)、、EI(收录号：20075211001627)、Scopus(收录号：2-s2.0-37349073764)、WOS

基金：This work was supported by Zhejiang Provincial Youth Teacher Foundation, Research Project Foundation (20061156) of the Education Department of Zhejiang Province and Shaoxing Key Discipline Foundation, China.

语种：英文

外文关键词：epoxy resin; butadiene-acrylonitrile rubber; positron annihilation; toughness

外文摘要：An epoxy resin (EP) matrix has been modified with carboxyl-randomized butadiene-acrylonitrile (CRBN) rubber and hydroxyl-terminated butadiene-acrylonitrile rubber (HTBN). When the rubber content was low (<= 5%), the free volume size varied slowly, meanwhile, the free volume size of EP/HTBN system was smaller than EP/CRBN system. With further addition of rubber component (>= 7%), the free volume size of the composite increased quickly. In this case, the free volume size of EP/HTBN system was larger than EP/CRBN system. The intermediate positron lifetime component (I-2) was affected by the structure of the interface layer between rubber particles and EP matrix. The different free volume properties could be attributed to the compatibility between rubber and EP. (C) 2007 Elsevier Ltd. All rights reserved.