生物基环氧玻璃剂具有固有的优良阻燃性和通过分子设计的可回收性
Mei-Hui Zhou1, Xiang Ao2, Monsur Islam3
1Materials Science and Engineering Area, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Madrid, Spain; IMDEA Materials Institute, C/Eric Kandel, 2, 28906 Getafe, Madrid, Spain.
International journal of biological macromolecules
|January 20, 2024
概括
这项研究介绍了一种新型的生物环氧玻璃化物 (GVD),该玻璃化物具有防火性和可回收性. 该材料由甘三甘乙烯 (Gte) 和一种基于素的硬化剂 (VA) 制成,为循环经济提供出色的阻燃性和可重复使用性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续化学 可持续化学
背景情况:
- 向循环经济的过渡需要开发可持续材料.
- 生物基热为传统塑料提供了有希望的替代品,但往往缺乏消防安全和可回收性.
- 对于高性能,环保的耐热材料的需求日益增长.
研究的目的:
- 推出一种新的,高性能的生物环氧玻璃制剂,具有增强的消防安全和可回收性.
- 为了研究一种反应性阻燃剂对生物环氧玻璃制剂特性的影响.
- 展示一项用于制造多功能生物环氧热的简单策略.
主要方法:
- 生物环氧玻璃制剂 (GVD) 的制造,使用甘油三甘乙烯 (Gte),不同度的9,10-二-9-oxa-10-phoshaphenanthrene-10-oxide (DOPO),以及基于香草素的硬化剂 (VA).
- 使用垂直燃烧试验 (UL-94) 和限制氧指数 (LOI) 测量来评估阻燃性.
- 通过测量峰值热释放率和总热释放量来评估热性能.
- 检测再加工性和可回收性,以及机械性质的保留.
主要成果:
- 在UL-94测试中,GVD5玻璃化剂 (5重%DOPO) 在UL-94测试中获得V-0评级,LOI为31%,超过原始环氧性能.
- 与原始环氧相比,GVD5的峰值热释放率减少了38.2%,总热释放量减少了26.3%.
- 开发的玻璃材料由于动态的胺结合,具有出色的再加工和可回收性,同时保持机械性能.
结论:
- 一种新的生物环氧玻璃化物 (GVD) 成功合成,显示出优越的消防安全性和可回收性.
- 纳入DOPO和动态 imine 债券为高性能,可持续的热提供了一条可行的途径.
- 这项工作为循环经济创造先进的生物基材料提供了一种实际方法.
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