%0 Journal Article
%T STUDY ON THE TOUGHENING MECHANISM OF RUBBER TOUGHENED EPOXY RESIN<br>橡胶增韧环氧树脂机理的研究
%A SUN Yi-shi
%A ZHAO Shi-qi
%A LIN Xiu-ing
%A WANG Xi-qun
%A <br>孙以实
%A 赵世琦
%A 林秀英
%A 王习群
%J 高分子学报
%D 1988
%I 
%X The following affecting factors of rubber toughened epoxy resin system were studied: 1. kinds of curing agent used 2. the Mc value of the matrix 3. the bonding force between the dispersed phase and the matrix. Accoring to our experimental results, the average chain length between crosslinks (Mc) is found to be a much more important affecting factor, chemical bonding between the dispersed phase and the matrix is also important. A toughening mechanism of rubber toughened epoxy resin has been proposed. In the material with relatively low cross-linking density, extensive fracture process stripe is formed which is induced by the combined stress field near the rubber particles. The chemical bonding between the dispersed phase and the matrix may increase the strength of the local stress field about the rebber particles which is in favor of broading the fracture process area.
%K Toughening mechanism
%K Rubber toughened
%K Epoxy resin
%K Carboxyl termina- ted nitrile rubber<br>增韧机理
%K 橡胶增韧
%K 环氧树脂
%K 端羧丁腈橡胶
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=55B66DFC4B4FE230&yid=0702FE8EC3581E51&iid=0B39A22176CE99FB&sid=74011071555EB4E5&eid=F24949CFDB502409&journal_id=1000-3304&journal_name=高分子学报&referenced_num=6&reference_num=0