中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Studies on isotactic poly(phenyl glycidyl ether)-modified epoxy resins. II. Toughening of epoxy resins

文献类型:期刊论文

作者Zhang, Z; Yu, YZ
刊名JOURNAL OF APPLIED POLYMER SCIENCE
出版日期2002-05-09
卷号84期号:6页码:1223-1232
关键词Epoxy Resin Poly(Phenyl Glycidyl Ether) Toughness
ISSN号0021-8995
DOI10.1002/app.10445
英文摘要A semicrystalline polymer, isotactic poly(phenyl glycidyl ether) (i-PPGE) was used as a modifier for epoxy resin; 1,8-Diamino-p-methane (MNDA) and 4,4'-Diamino diphenyl sulfone (DDS) were used as curing agents. In the MNDA-cured resins, the dispersed phase were spherical particles with diameters in the range of 0.5-1.0 mum when the resin was blended with 5 phr i-PPGE. In the DDS-cured resins, the particle size distribution of the dispersed phase was much wider. The difference was traced back to the reactivity of the curing agent and the different regimes used for curing. Through dynamic mechanical analysis, it was found that in the MNDA-cured systems, i-PPGE had a lower crystallinity than in the DDS-cured system. In spite of the remarkable difference in the morphology and microstructure of the modified resins cured with these two curing agents, the toughening effects of i-PPGE were similar for these resins. The critical stress intensity factor (K-IC) was increased by 54% and 53%, respectively, for the resins cured by DDS and by MNDA, blending with 5 phr of the toughner. i-PPGE was comparable with the classical toughners carboxyl-terminated butadiene-acrylonitrile copolymers in effectiveness of toughening the epoxy resin. An advantage of i-PPGE was that the modulus and the glass-transition temperature of the resin were less affected. However, this modifier caused the flexural strength to decrease somewhat. (C) 2002 Wiley Periodicals, Inc.
语种英语
WOS记录号WOS:000174160500013
出版者JOHN WILEY & SONS INC
源URL[http://ir.iccas.ac.cn/handle/121111/79217]  
专题中国科学院化学研究所
通讯作者Yu, YZ
作者单位Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Z,Yu, YZ. Studies on isotactic poly(phenyl glycidyl ether)-modified epoxy resins. II. Toughening of epoxy resins[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2002,84(6):1223-1232.
APA Zhang, Z,&Yu, YZ.(2002).Studies on isotactic poly(phenyl glycidyl ether)-modified epoxy resins. II. Toughening of epoxy resins.JOURNAL OF APPLIED POLYMER SCIENCE,84(6),1223-1232.
MLA Zhang, Z,et al."Studies on isotactic poly(phenyl glycidyl ether)-modified epoxy resins. II. Toughening of epoxy resins".JOURNAL OF APPLIED POLYMER SCIENCE 84.6(2002):1223-1232.

入库方式: OAI收割

来源:化学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。