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阻燃性和透明的不和聚烯基基基于P/N液体阻燃剂和修改的Haloysite纳米管

Yanli Dou¹, Aixun Ju¹, Zheng Zhong¹

¹The Ministry of Education Key Laboratory of Automotive Material, College of Materials Science and Engineering, Jilin University, Changchun 130025, China.

Materials (Basel, Switzerland)

|April 9, 2024

概括

这项研究开发了一种用于不和聚树脂 (UPR) 的新型阻燃剂 (DOPO-N),显著提高了机械强度和耐火性. 改进的UPR复合材料获得了UL-94 V-0等级,减少了释放热量的情况.

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:

当添加阻燃剂时,不和聚树脂 (UPRs) 往往会出现不良的机械性能.
开发有效的阻燃系统以保持或提高机械性能至关重要.

研究的目的:

合成并将含有和的新型反应性阻燃剂 (DOPO-N) 纳入UPR.
为了提高UPR复合材料的阻燃性和机械性能.
调查DOPO-N和修饰化化纳米管 (VHNTs) 的协同阻燃机制.

主要方法:

合成DOPO-N并将其纳入UPR作为交叉连接器.
在UPR/DOPO-N复合物中添加修饰的化化纳米管 (VHNT).
机械性能 (拉力强度) 和阻燃性 (UL-94,LOI,PHRR,THR) 的评估.
使用TG-IR,拉曼光谱和XPS研究阻燃机制.

主要成果:

UPR/30DOPO-N获得了UL-94 V-1评级,LOI为30.8%,拉伸强度增加了24.4%.
在UPR/30DOPO-N中添加3重%的VHNT导致UL-94 V-0评级.
通过添加VHNTs,PHRR和THR分别减少了60.7%和48.3%.
DOPO-N 证明了气相火焰灭,而 DOPO-N 和 VHNT 则显示了协同作用的冷凝相屏障效应.

结论:

开发的DOPO-N反应性阻燃剂有效地增强了UPR的机械和阻燃性能.
DOPO-N和VHNT的组合提供了协同的阻燃效果,从而带来了优越的消防安全性能.
该研究阐明了双重阻燃机制 (气相和冷凝相),有助于提高消防安全.

关键词:

在DOPO DOPO DOPO中使用.阻燃剂是一种阻燃剂.化体纳米管的化体纳米管不和聚树脂不和聚树脂

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