/协同作用改善了聚乙烯二甲酸泡的阻燃性
Jia Du1, Jiaxin Zheng1, Chunling Xin1
1College of Mechanical and Electronically Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Polymers
|June 27, 2024
概括
这项研究开发了一种用于聚乙烯二甲 (PET) 泡的阻燃系统,使用二甲基低酸盐 (ZDP) 和脱二乙烯 (DBDPE). 协同作用的ZDP/DBDPE系统显著提高了阻燃性,达到V-0等级和高极限氧指数值.
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:
- 聚乙烯二甲 (PET) 泡由于其轻量,高强度和耐热性而广泛使用.
- 应用范围涵盖风力发电,汽车,铁路,海洋和建筑行业.
- 聚乙烯泡的阻燃性对于扩大其应用范围至关重要.
研究的目的:
- 为了研究和提高PET泡的阻燃性.
- 为PET泡开发一个协同阻燃 (FR) 系统.
- 评估阻燃剂比对炭层形成和FR性能的影响.
主要方法:
- 通过使用二甲基低 (ZDP) 作为酸源和使用甲二甲 (DBDPE) 作为气体源,创建了一个协同阻燃系统.
- 优化了ZDP/DBDPE比率,以改善炭层形成和热稳定性.
- 使用限制氧指数 (LOI) 试验和垂直燃烧试验 (UL-94) 评估了阻燃性.
主要成果:
- 优化的ZDP/DBDPE比率 (例如,9/3和7/5) 导致炭层厚度为3-4毫米.
- 改性PET泡实现了32.7%和33.6%的LOI值,在垂直燃烧测试中达到V-0水平.
- 具有3:1和2:1的ZDP/DBDPE比率的挤出泡也实现了V-0等级和LOI>27%.
结论:
- 协同作用的ZDP/DBDPE系统有效地提高了PET泡的阻燃性.
- ZDP与DBDPE的比率对于实现最佳的燃烧产量,膨胀和热稳定性至关重要.
- 这种FR系统为提高PET泡在各种应用中的消防安全提供了一个有希望的解决方案.
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