刚性聚氨泡复合材料的热稳定性和阻燃性,填充了相变微囊
Qing Cao1,2, Qinggui Cao1, Lujie Zhou1
1College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
Materials (Basel, Switzerland)
|February 24, 2024
概括
研究人员开发了基托相变微囊 (CS/PCM) 来增强刚性聚氨泡 (RPUF). 添加CS/PCM显著改善了RPUF.
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:
- 刚性聚氨泡 (RPUF) 具有易燃性,限制了其广泛的应用.
- 开发有效的阻燃材料对于提高RPUF复合材料的安全性至关重要.
- 换相材料 (PCM) 提供了热调节和阻燃性的潜力.
研究的目的:
- 使用奇托和木木合成奇托相变微囊 (CS/PCM).
- 将CS/PCM纳入RPUF作为填充剂,以改善热和阻燃性能.
- 研究RPUF复合材料中CS/PCM的阻燃机制.
主要方法:
- 酸盐相变微囊 (CS/PCM) 通过对核进行凝结制备.
- 在不同的重量百分比中,CS/PCM被复合成RPUF.
- 材料表征包括SEM,XRD,TG,DSC和圆热量计.
主要成果:
- CS/PCM的结合改善了RPUF的热稳定性和相位过渡特性.
- 在30%的CS/PCM重量下,RPUF-30表现出12.308 J/g的潜热.
- 限制氧指数 (LOI) 增加到26.1%,显著降低了火灾风险.
结论:
- CS/PCM有效地增强了RPUF的阻燃性能.
- 酸盐屏障效应是阻断热量和可燃气体转移的关键.
- 这项研究提出了在RPUF应用中利用CS/PCM的新方法.
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