基于卡达诺的无催化剂环氧玻璃玻璃剂用于自我愈合,形状记忆和可回收材料
Yu Zhu1,2, Wenbin Li1, Zhouyu He2
1Key Laboratory of Biomass Energy and Material, Jiangsu Province, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China.
Polymers
|February 10, 2024
概括
这项研究引入了从卡达诺中提取的无催化剂,可回收的生物基玻璃剂. 这些新型材料具有自我愈合特性和出色的再加工能力,为可持续的热替代品铺平了道路.
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:
- 传统的耐热树脂是不可再生和不可回收的.
- 生物基玻璃剂提供了一个可持续的替代品,但通常需要催化剂.
- 催化剂的加入阻碍了生物基玻璃剂的更广泛采用.
研究的目的:
- 开发无催化剂,自我愈合和可回收的生物基玻璃制品.
- 使用基于卡达诺的固化剂,具有多氧和三级氨基结构.
- 为了克服维他命合成中催化剂依赖的局限性.
主要方法:
- 一种基于卡达诺的固化剂是使用点击化学合成的.
- 固化剂与双乙烯的迪格利乙烯反应,形成生物基玻璃剂.
- 内部的多基和三级氨基结构促进了无催化剂的动态转化.
主要成果:
- 成功制备了无催化剂,自我愈合和可回收的生物基玻璃剂.
- 玻璃体表现出快速的应力放松 (1500秒在180°C) 和低的激活能量 (92.29kJ·mol-1).
- 回收的玻璃材料保留了近100%的原始抗拉强度.
结论:
- 这项工作介绍了一种创新的方法,可以在没有催化剂的情况下制造基于卡达诺的环氧玻璃.
- 开发的玻璃体具有出色的再加工和自我愈合特性.
- 这些生物基玻璃材料具有在涂料,水凝,生物材料,粘合剂和塑料中的应用潜力.
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