内溶性阻燃剂的表面修饰及其在具有出色的防火性能和防水性能的聚烯中的应用
Xuqiang Zheng1, Mike Deng1, Hao Jia2
1State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Polymers
|February 13, 2025
概括
这项研究开发了一种用于聚烯 (PP) 的修饰性浸泡式阻燃剂 (MA-IFR). MA-IFR显著提高了PP复合材料的阻燃性,机械强度和耐水性.
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
- 阻燃性是指阻燃性是指阻燃性.
背景情况:
- 聚烯 (PP) 广泛使用,但易燃.
- 色阻燃剂 (IFR) 和PP之间的相容性差,限制了它们的有效性.
- 开发具有改善性能的有效阻燃PP复合材料至关重要.
研究的目的:
- 合成一种新的修改后的IFR (MA-IFR) 来增强聚烯的阻燃性.
- 研究MA-IFR对PP复合材料的阻燃性,机械性能和耐水性的影响.
- 为了评估MA-IFR在PP复合材料的长期性能,在具有挑战性的条件下.
主要方法:
- 使用γ-aminopropyl triethoxysilane (KH550) 进行IFR的表面修改.
- 通过KH550对修改后的IFR进行SBS (SBS-g-MAH) 涂层,通过KH550对其进行化无水合物移植,从而产生MA-IFR.
- 系统评估PP/MA-IFR复合材料的阻燃性 (LOI,UL-94),机械性能 (拉力,冲击强度) 和耐水性.
主要成果:
- 该PP/MA-IFR复合物实现了39.7%的限制性氧指数 (LOI) 和UL-94 V-0等级.
- 峰值热释放率和烟雾释放率分别降低了85.0%和82.5%.
- 与PP/IFR复合材料相比,拉力强度和冲击强度分别增加了29%和18%.
- 在长时间浸泡在热水中 (70°C168小时) 后,保持出色的阻燃性.
结论:
- 开发的MA-IFR显著提高了PP复合材料的阻燃性.
- MA-IFR提高了PP的机械性能和耐水性.
- 这种修改后的IFR为耐用,阻燃和防水的聚烯应用提供了一个有前途的解决方案.
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