在一个生物基的环氧玻璃剂上,由一个简单的醇-环氧"点击"反应制备的卡达诺衍生物
Federico Ferretti1, Giacomo Damonte1, Francesco Cantamessa2
1Dipartimento di Chimica e Chimica Industriale, Università degli studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy.
ACS omega
|January 15, 2024
概括
这项研究引入了一种新的,可持续的环氧树脂,该树脂来自可再生卡达. 这种生物基玻璃可再加工,在海水中可生物降解,并具有阻燃性能,为传统环氧系统提供环保的替代方案.
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:
- 传统的环氧树脂面临着可持续性挑战,原因是不可再生的采购和寿命终结问题.
- 越来越需要环保材料,包括具有增强性能的生物基替代品.
- 开发可回收和可生物降解的聚合物对于减少环境影响至关重要.
研究的目的:
- 开发一种可持续的环氧树脂系统,使用来自可再生资源的单体.
- 创建一个带有动态共价键的玻璃体网络,用于再加工和增强寿命终端选项.
- 评估新型生物基材料的生物降解性和阻燃性.
主要方法:
- 使用可再生单体卡达,用于环氧树脂合成.
- 在没有溶剂和催化剂的醇-环氧点击反应中使用二博乙烯二醇 (DBEDT) 作为交叉链接剂.
- 通过凝分数分析,风湿学测量和动态机械分析 (DMA) 研究了网络动态性.
- 评估了海水中的生物降解性和火焰反应行为.
主要成果:
- 从卡达诺醇成功合成了一种新型环氧树脂,并开发了一种玻璃制剂系统.
- 证明了具有低放松时间的网络动态性 (约. 在70°C下4秒) 和激活能量 (约. 48kJ/mol) 的时间.
- 该材料在海水中容易生物降解,具有有前途的阻燃性能,包括在燃烧过程中不滴水.
结论:
- 开发的生物基玻璃系统为传统环氧树脂提供了可持续和可再加工的替代方案.
- 该材料在海水中的生物降解性和固有的耐火性使其适用于各种应用.
- 这项工作为各种行业广泛采用环保环氧材料铺平了道路.
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