文献类型：期刊文献

英文题名：Preparation and properties of dipropargyl ether of bisphenol A-modified bismaleimide resins and composites

作者：Rong, Zhuxia[1];Huang, Fuwei[1];Shen, Xuening[1];Huang, Farong[1]

机构：[1]E China Univ Sci & Technol, Key Lab Ultrafine Mat Minist Edn, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2008

卷号：29

期号：5

起止页码：483

外文期刊名：POLYMER COMPOSITES

收录：;EI(收录号：20082211278580);WOS:【SCI-EXPANDED(收录号:WOS:000255314500003)】；

语种：英文

外文关键词：Composite materials - Ethers - Fourier transform infrared spectroscopy - Glass transition - Nuclear magnetic resonance spectroscopy - Phenols

摘要：A kind of modified bismaleimide resin, with good heat resistance and processing properties for advanced composites, was developed. The modifier, dipropargyl ether of bisphenol A (DPBPA), was prepared by a phase-transfer catalyzing procedure, characterized by FTIR, H-1 NMR, and elementary analysis, and used to modify 4,4'-bismaleimidodiphenylmethane (BMDPM). The thermopolymerization of a DPBPA-modified BMDPM resin was followed up by FTIR. The curing of the resin was investigated by differential scanning calorimeter and gelation characterization. The relation of viscosity and temperature was used to characterize the processability of the resin. The results of DMA analysis showed that the cured DPBPA-modified BMDPM resins had a glass transition temperature higher than 320 degrees C. The carbon fiber (T700) reinforced composites showed excellent flexural properties at ambient temperature and at 250 degrees C. DPBPA could effectively improve mechanical properties without deteriorating heat resistance of the BMDPM resin a lot.