多尺度多孔隔热聚烯泡具有高红外吸收性能
Chenguang Yang1, Yangkang Xu1, Haiyang Liu1
1Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan Textile University, Wuhan 430200, China.
Langmuir : the ACS journal of surfaces and colloids
|February 18, 2025
概括
这项研究开发了具有基的先进聚烯 (PP) 泡,显著降低导热率,用于优质的高温绝缘. 这些修改后的PP泡提供了增强的机械和疏水性质,扩大了绝缘材料的应用.
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
- 热力工程是热力工程中的一个.
背景情况:
- 聚烯 (PP) 泡在高温绝缘方面表现有前途,但面临着发展挑战.
- 现有的PP泡需要更好的绝缘和多功能特性,以更广泛的应用.
研究的目的:
- 开发一种创新方法,用于制造具有增强绝热功能的刚性聚烯泡.
- 为了研究基接种和多尺度细胞结构对泡特性的影响.
主要方法:
- 通过紫外线 (UV) 辐射将以埃斯特为基础的组植入PP分子链上.
- 将移植的PP与纯的PP混合,然后进行化学泡,以制造改性刚性PP泡.
- 描述泡形态,导热性,机械性质和疏水性.
主要成果:
- 接种PP提高了发泡效率,导致纳米和微米大小的细胞.
- 引入的基吸收了红外辐射,而多尺度细胞增强了热散射效应.
- 实现了导热率从186.7到65.3mW/m·K的显著降低.
- 获得的泡在各种环境条件下表现出良好的机械和疏水性能.
结论:
- 基于埃斯特的多尺度多孔PP泡为减少聚合物泡的导热率提供了一种新的策略.
- 这种方法可以制备刚性PP泡,扩大它们在高温绝缘中的应用潜力.
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