氧化还原阴性正面聚合:一种新的策略,用于快速高效地固化无缺陷的纤维增强聚合物复合材料
Muhammad Salman Malik1, Markus Wolfahrt1, Sandra Schlögl1
1Polymer Competence Center Leoben Rossegerstraße 12 8700 Leoben Austria sandra.schloegl@pccl.at.
RSC advances
|October 6, 2023
概括
氧化还原电离子正面聚合 (RCFP) 能够固化高纤维体积的碳纤维增强复合材料. 这种新方法克服了传统的正面聚合物的局限性,提高了网络质量和材料性能.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 复合材料制造业 复合材料制造业
背景情况:
- 前端聚合是一种用于环氧热和碳纤维增强复合材料 (CFRCs) 的固化技术.
- 目前的方法由于热损失和有限的单体/启动器选择,仅限于低纤维量.
- 现有的技术导致CFRC的缺陷和不良机械性能.
研究的目的:
- 介绍氧化还原电离子前端聚合 (RCFP) 作为一种新的前端固化概念.
- 克服CFRCs现有的正面聚合方法的局限性.
- 展示RCFP在先进复合材料应用中的多功能性.
主要方法:
- 研究了斯坦诺斯八酸盐对双甲基甘乙烯树脂的正面聚合物的影响.
- 将机械和热性能与传统无水化物固化树脂进行比较.
- 通过使用RCFP成功治愈了具有>50vol%纤维的准同位素CFRC.
- 评估了RCFP在循环化环氧化物中防止脱碳氧化的能力.
主要成果:
- 通过RCFP,可以对高纤维体积分数 (>50体积%) 的CFRC进行固化.
- 经RCFP固化复合材料显示玻璃过渡温度>100°C,缺陷最小.
- 氧化剂在正面聚合过程中有效地防止了循环合性环氧化物中的脱碳化.
- 用RCFP固化树脂的机械和热性能与传统方法相比.
结论:
- RCFP是一种多功能和有效的前部固化技术,用于高级CFRC.
- 这种方法扩大了正面聚合物的适用于高性能复合材料的范围.
- RCFP提供了一种解决方案,用于生产具有改进性能的高质量复合材料.
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