Liquid Polysulfide Rubber Toughening Bisphenol A-Aniline Based Polybenzoxazine | |
Ren, Shi-tong1,2; Yang, Xin1; Zhao, Xiao-juan1; Zhang, Ying1; Huang, Wei1 | |
刊名 | ACTA POLYMERICA SINICA |
2016-04-20 | |
期号 | 4页码:494-502 |
关键词 | Benzoxazine Liquid polysulfide rubber Toughening Mechanical properties Thermal properties |
英文摘要 | Liquid polysulfide rubber (LP-3) was used as a toughening modifier to improve the toughness of polybenzoxazine obtained from bisphenol A. aniline based benzoxazine (B-a). The mixing and curing processes of B-a and LP-3 were monitored by H-1. NMR, FTIR and DSC. It was found that the ring. opening addition reaction between B-a and LP-3 happened during mixing, and the resultants showed lower curing temperature and faster curing rate than the pure B-a. The thermal and mechanical properties of the cured materials with various LP-3 incorporations were measured by TGA, DMA, impacting and flexural test. The results showed that LP-3 was an effective toughener for polybenzoxazine from B-a. Materials containing LP-3 in the crosslinked network showed much better toughness than that without LP-3. With the increase of LP-3 incorporation, impacting strength increased while modulus and glass transition temperature (T-g) decreased. When 5 wt% LP-3 was added, the impacting strength of the cured material was about 3.4 times higher than that of the polybenzoxazine from pure B-a. Simultaneously, the material at this LP-3 content retained high storage modulus (E' = 3.9 GPa at 30 degrees C) and high glass transition temperature (T-g = 206 degrees C) with improved flexural properties and thermal stability (T-5% = 322 degrees C, T-10% = 342 degrees C). It was concluded that LP-3 was a promising modifier for the commercial B. a resin even with small addition amount. When the amount of LP-3 was 5 wt%, the cured material owned the best overall performance. |
收录类别 | SCI |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/36060] |
专题 | 化学研究所_高技术材料实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Ren, Shi-tong,Yang, Xin,Zhao, Xiao-juan,et al. Liquid Polysulfide Rubber Toughening Bisphenol A-Aniline Based Polybenzoxazine[J]. ACTA POLYMERICA SINICA,2016(4):494-502. |
APA | Ren, Shi-tong,Yang, Xin,Zhao, Xiao-juan,Zhang, Ying,&Huang, Wei.(2016).Liquid Polysulfide Rubber Toughening Bisphenol A-Aniline Based Polybenzoxazine.ACTA POLYMERICA SINICA(4),494-502. |
MLA | Ren, Shi-tong,et al."Liquid Polysulfide Rubber Toughening Bisphenol A-Aniline Based Polybenzoxazine".ACTA POLYMERICA SINICA .4(2016):494-502. |
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