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交叉链接的聚胺气凝具有出色的热和机械性能

Haoran Qian¹, Zhiqi Li², Song He²

¹Mining Engineering Department, Shanxi Institute of Technology, Yangquan 045000, China.

Gels (Basel, Switzerland)

|October 25, 2024

概括

研究人员使用一种隔热剂开发了新的交联聚胺气凝. 这些先进的材料具有增强的隔热,机械强度和阻燃性,适用于工业应用.

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
纳米技术纳米技术

背景情况:

高效的能源利用需要先进的材料.
气凝为能源应用提供独特的特性.
开发具有提高性能的新型气凝至关重要.

研究的目的:

为了合成和表征交联聚胺气凝 (CLPI).
为了研究聚胺酸度和交联剂 (TAB) 对气凝特性的影响.
评估开发的气凝的热,机械和阻燃特性.

主要方法:

通过将聚胺酸与1,3,5-tris(4-aminobenzylamino) benzene (TAB) 混合来制备CLPI气凝.
使用真空冷干燥和编程高温干燥来形成3D结构.
聚胺溶液度和TAB含量的系统变化.

主要成果:

缩小了从40%到28%的缩小,随着TAB度的增加.
实现了高压缩强度 (0.81 MPa) 和特定模量 (41.95 KN m/Kg).
提高了耐热性 (556°C) 和低热导率 (24.4 mWm-1 K-1).

结论:

交叉连接的聚胺气凝表现出优越的绝热和机械性能.
添加TAB显著提高了热稳定性,并减少了收缩.
这些气凝在工业保护应用中表现出有希望的阻燃特性.

关键词:

交叉链接是指交叉链接.结干燥结干燥结干燥聚胺气凝是一种聚胺气凝.热绝缘特性热绝缘特性三维建筑的三维结构.

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