一种含有//的高分支聚合物作为环氧树脂的多功能添加剂
Qian Zhong1, Siqi Huo2, Cheng Wang1
1Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials, School of Materials Science & Engineering, Wuhan Institute of Technology, Wuhan, 430205, China.
Macromolecular rapid communications
|November 11, 2024
概括
一种新型阻燃剂 (DSi) 增强了环氧树脂 (EPs),提高了消防安全,透明度和强度. 这种 DSi 添加剂使 EP 能够达到 V-0 评级,并减少热释放和烟雾产生.
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:
- 高性能环氧树脂 (EP) 在各种应用中至关重要,但同时实现透明度,耐火性和机械强度是一个重大挑战.
- 目前在EP中增强这些特性的方法通常涉及权衡,限制了它们的广泛使用.
研究的目的:
- 开发一种新型的超分支,多功能阻燃剂 (DSi),用于增强环氧树脂的性能.
- 调查DSi结合对环氧树脂透明度,消防安全,机械强度和性的影响.
主要方法:
- 合成一种高分支的多功能阻燃剂 (DSi),使用二甲胺,多甲,二烯氧化物和二三甲西兰.
- 在环氧树脂矩阵中加入不同数量的DSi.
- 评估消防安全性能,包括垂直燃烧 (UL-94) 和限制氧指数 (LOI).
- 通过测量峰值热释放率 (PHRR) 和总烟雾产量 (TSP) 来评估热性能.
- 对光学透明度,机械强度和性进行分析.
主要成果:
- 只有2重%的DSi的环氧树脂样本获得了UL-94 V-0评级和32.8%的LOI.
- 在3重%的DSi含量下,与纯环氧树脂相比,PHRR和TSP分别降低了43.8%和21.4%.
- DSi添加剂与环氧树脂具有很好的兼容性,保持高透明度.
- DSi的超分支结构显著提高了环氧树脂复合材料的机械强度和性.
结论:
- 开发的DSi阻燃剂有效地增强了环氧树脂,提供了出色的消防安全,透明度和机械性能.
- 增强的消防安全性归因于DSI能够促进炭火形成和激光火的能力.
- 本研究提出了一个可行的策略,用于设计各种应用的高性能环氧树脂,具有光学,机械和阻燃特性平衡的配置.
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