防火柔性泡聚氨 (PU) 基复合材料:装备和装备的地面轮胎 (GTR) 颗粒
Paulina Kosmela1, Kamila Sałasińska2, Daria Kowalkowska-Zedler3
1Department of Polymer Technology, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland.
Polymers
|March 13, 2024
概括
这项研究开发了耐火聚氨 (PU) 泡,使用与阻燃剂处理的地面轮胎 (GTR) 颗粒. 经过修改的PU/GTR复合材料显示可燃性显著降低,在应用中提供了提高消防安全的潜力.
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:
- 柔性聚氨 (PU) 泡广泛使用,但易燃,限制了先进的应用.
- 加入像地面轮胎 (GTR) 这样的添加剂可以增强性能,但也引起了人们对保持性能的担忧.
- 回收废物对于循环是可取的,并且可以改善机械性能.
研究的目的:
- 使用阻燃剂 (FR) 处理的地面轮胎 (GTR) 颗粒开发高度阻燃的柔性PU泡.
- 研究FR类型和GTR含量对PU/GTR复合材料的防火性能的影响.
- 评估阻燃性和机械/热绝缘性能之间的权衡.
主要方法:
- 用阻燃剂处理地面轮胎 (GTR) 颗粒:胺酸盐 (MC),胺聚酸盐 (MPP) 和聚酸盐 (APP).
- 经过FR处理的GTR颗粒被纳入柔性PU泡中,以创建PU/GTR复合材料.
- 用限制氧指数 (LOI),峰值热释放率 (pHRR),烟雾生成和火焰阻燃指数 (FRI) 来分析燃烧行为.
主要成果:
- PU/GTR复合材料的可燃性降低,LOI增加了30%以上,pHRR下降了50%.
- 阻燃性对GTR含量敏感,这比使用的FR类型更为关键.
- 广泛的火焰阻燃指数 (FRI) 值 (0.94-7.56) 表示性能水平从"差"到"好"不等.
结论:
- 混合FRs与GTR颗粒有效地提高了柔性PU泡的耐火性.
- 开发的PU/GTR复合材料在建筑应用中显示出防火的前景.
- 实现增强的阻燃性是以减少机械和热绝缘性能为代价的.
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