聚酸对PVC矩阵阻燃复合材料的阻燃性和烟雾抑制的影响
Xuan Zhou1, Zhiyu Hu2, Feng Jiang2
1Hebei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical Safety, North China Institute of Science and Technology, Sanhe 065201, China.
Molecules (Basel, Switzerland)
|November 13, 2025
概括
在三氧化 (Sb2O3) 中添加聚酸盐可以增强阻燃性,并减少聚乙烯 (PVC) 复合材料中的烟雾. 聚酸被证明是最有效的,在不影响机械性能的情况下提高了安全性.
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
- 阻燃性 阻燃性 阻燃性 阻燃性
背景情况:
- 聚乙烯 (PVC) 是广泛使用的,但由于烟雾和火焰的产生,它给消防安全带来了挑战.
- 三氧化物 (Sb2O3) 是一种常见的阻燃剂,但其有效性可以提高.
- 聚酸盐具有作为协同阻燃添加剂的潜力.
研究的目的:
- 研究PVC复合材料中与Sb2O3相结合的四种聚酸盐 (铁,,,) 的协同阻燃效应.
- 评估对燃烧行为,烟雾释放和机械性能的影响.
- 为了确定PVC阻燃性最有效的聚酸盐.
主要方法:
- 制备PVC复合材料,其中包括聚酸盐和Sb2O3.
- 使用热重量计分析仪,限制氧指数 (LOI) 测试仪,烟雾密度测试仪和圆热量计进行分析.
- 通过使用扫描电子显微镜 (SEM) 的通用拉力测试仪和微结构分析来评估机械性能.
主要成果:
- 聚酸盐与Sb2O3具有显著的协同阻燃效应,改善LOI并减少烟雾释放.
- 聚乙烯复合材料的热释放率 (HRR) 较低,煤炭残留物密度较高,机械性能没有显著损失.
- 聚酸是最有效的,减少了13.3%的峰值热释放率 (PHRR) 和37.3%的总烟雾产量 (TSP).
结论:
- 将Sb2O3部分用聚酸盐替换为PVC中阻燃性和烟雾抑制提供了一种有效的方法.
- 聚酸是一种高效的添加剂,可以提高PVC的消防安全性.
- 这些发现为开发先进的阻燃PVC材料提供了宝贵的见解.
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