对于聚乳酸面料和其他聚合物基板的环保阻燃剂的通用战略
Jian Liu1, Peng Qi2, Feng Chen1
1State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
International journal of biological macromolecules
|January 17, 2024
概括
一种新的生物基阻燃涂层 (PAGS) 为多种材料 (如聚乳酸 (PLA) 和棉花) 提供通用防火保护. 这种可持续的解决方案通过防止火焰传播和减少热量释放来提高安全性.
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
- 消防安全工程 消防安全工程
背景情况:
- 由于聚合物燃烧行为不同,开发通用阻燃剂策略至关重要.
- 需要可持续的,生物基的阻燃剂作为石油制品的替代品.
- 可生物降解的多乳酸 (PLA) 与可持续发展目标保持一致.
研究的目的:
- 为了创建一个完全基于生物的阻燃涂层 (PAGS) 广泛的基板适用性.
- 评估PAGS作为各种材料的通用阻燃剂,包括PLA,棉花,PET,PA,PU泡,薄膜和木材.
- 为了研究PAGS涂层的阻燃机制.
主要方法:
- 使用 phytic 酸 (PA) 和 guanosine (GS) 制备阻燃涂层 (PAGS).
- 作为各种基板的涂层,PAGS的应用:PLA,棉花,PET,PA织物,PU泡,PET薄膜和木材.
- 通过自灭特性,化液滴消除和热释放抑制来评估火焰阻燃性.
主要成果:
- 用PAGS处理的基板表现出自我灭的行为,并防止化液滴的形成.
- 在所有测试基板上观察到热释放的显著减少.
- 阻燃机制涉及气相激素清除 (含P的激素) 和凝聚相炭形成.
结论:
- 开发的PAGS涂层对广泛的聚合物基板起到普遍的阻燃作用.
- 涂层通过协同气体和凝结相作用有效抑制燃烧.
- 这项研究提出了一种简单,高效和可持续的策略,以提高各种材料的消防安全.
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