期刊
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
卷 33, 期 11, 页码 3706-3710出版社
WILEY-V C H VERLAG GMBH
DOI: 10.5012/bkcs.2012.33.11.3706
关键词
Silicon-containing arylacetylene resins; Dipropargyl ether; Thermal property; Composite
资金
- Shaanxi Provincial Education Department [11JK0842, 12JK0635]
A novel silicon-containing arylacetylene resin (MSAR) modified by dipropargyl ether of bisphenol A (DPBPA) and dipropargyl ether of perfluorobisphenol A (DPPFBPA) was prepared separately. The curing behaviors of modified resins, DPBPA/MSAR and DPPFBPA/MSAR, were characterized with differential scanning calorimeter (DSC). The kinetic parameters of modified resins were obtained by the Kissinger and Ozawa methods. The results of dynamic mechanical analysis (DMA) revealed that the glass transition temperature (T-g) of the cured DPBPA/MSAR reached 486 degrees C. According to the thermogravimetric analysis (TGA), the decomposition temperature (T-d5) of the cured resins and char yield (Y-c, 800 degrees C) decreased as the dipropargyl ether loadings increased, especially in air. With the same weight loading, thermal stability of DPBPA/MSAR was better than that of DPPFBPA/MSAR. The carbon fiber (T300) reinforced composites exhibited excellent flexural properties at room temperature with a high property retention at 300 degrees C.
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