生物基环氧-甲树脂:制备,表征和特性
Yanqin Du1, Ruojin Wang1, Qingxu Meng1
1College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Molecules (Basel, Switzerland)
|November 9, 2024
概括
含有化物组的生物基环氧树脂提供了增强的耐热性. 基于尤金醇的环氧法索 (EEPN) 与环氧树脂 (E51) 的混合物显示出显著改善的热稳定性,这对于可持续材料至关重要.
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
- 可持续化学 可持续化学
背景情况:
- 从可再生资源开发高性能耐热树脂对于全球可持续性至关重要.
- 环氧树脂是多功能性的,但往往需要增强的热性能要求高要求的应用.
研究的目的:
- 通过使用eugenol合成一种新的生物基环氧-甲 (EEPN) 树脂.
- 为了研究EEPN/环氧树脂 (E51) 混合物的热和机械性能.
- 通过分子设计增强环氧树脂的耐热性.
主要方法:
- 基于eugenol的环氧-phthalonitrile (EEPN) 单体的两步合成.
- 制备EEPN/环氧树脂 (E51) 混合物,其EEPN含量不同.
- 使用FTIR,NMR和元素分析进行表征.
- 通过热重力测量分析 (TGA) 评估热稳定性.
- 机械性能的动态机械分析 (DMA).
主要成果:
- 通过光谱和元素分析证实了EEPN单体结构.
- 在800°C时,EEPN表现出优越的热稳定性,燃煤产量为67.9%的重量%,而E51则为26.3%的重量.
- 混合树脂显示显著改善耐热性,与增加的EEPN含量相关.
结论:
- 在生物基环氧树脂中加入化物组有效地提高了热稳定性.
- EEPN 是一个有前途的可持续替代品,用于高性能热固化应用,需要卓越的耐热性.
- 开发的EEPN/E51混合物为先进的材料设计提供可调节的热性能.
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