甲基乙烯基膠的化修改及其對/膠複合材料的兼容性影響
Shuwen Xing1,2, Chuhui Yu1,2, Lei Ding3
1State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China.
ACS omega
|May 13, 2024
概括
在 (SiR) (FKM) /SiR复合材料中,将化侧链植入 (SiR) 上提高了兼容性. 这增强了材料性能,扩大了高性能复合材料的应用.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 复合材料 复合材料 复合材料
背景情况:
- 性 (FKM) 和性 (SiR) 分别具有不同的性能,如耐油性和耐低温性.
- 混合FKM和SiR可以创建具有高性能潜力的复合材料,但它们的极性差异导致界面兼容性差,性能降低.
- 解决极性不匹配对于开发先进的FKM/SiR复合材料至关重要.
研究的目的:
- 为了提高 (FKM) / (SiR) 复合材料的兼容性和性能.
- 通过乙烯点击反应合成一种新型化 (MVQ-g-PFDT),以改善界面粘附.
- 研究合成的兼容剂对FKM/SiR复合材料的低温行为,机械性能和填料分散的影响.
主要方法:
- 用1H,1H,2H,2H-甲 (PFDT) 接种的甲基乙烯 (MVQ) 的合成,使用乙烯点击反应.
- 将合成的MVQ-g-PFDT纳入FKM/SiR复合材料.
- 复合材料属性的表征,包括抗拉强度,耐油浸性,填充剂分散 (使用AFM) 和低温结晶抑制.
主要成果:
- 添加MVQ-g-PFDT显著改善了FKM和SiR阶段之间的兼容性,正如AFM所证明的那样.
- 经过修改的复合材料表现出增强的机械性能,最高抗拉强度为14.1 MPa.
- MVQ-g-PFDT有效地抑制了SiR的低温结晶,并在200°C时将油浸泡后的质量变化率降低到6.71%.
- 由于与兼容剂的基基团相互作用,观察到填充剂的分散性得到改善.
结论:
- 合成化 (MVQ-g-PFDT) 作为FKM/SiR混合物的有效兼容剂.
- 改进的界面兼容性导致复合材料具有优越的机械和热油耐受性.
- 这种方法为开发高性能复合材料提供了一种可行的策略,这些复合材料具有强化性能,可用于苛刻的应用.
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