丙烯酸酯
磺酸盐
复合材料
烧焦
烟雾
材料科学
可燃性
共聚物
保温
易燃液体
化学工程
涂层
钠
阻燃剂
聚合物
化学
图层(电子)
热解
有机化学
冶金
工程类
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2021-07-23
卷期号:373 (6553): 406.4-407
标识
DOI:10.1126/science.373.6553.406-d
摘要
Materials Science
Although lightweight polymeric foams work well for thermal insulation, they tend to be flammable and do not bond well with most fire-retardant coatings. Drawing inspiration from the adhesion capabilities of snails and tree frogs, Ma et al. designed a polymeric coating based on a copolymer of hydroxyethyl acrylate (HEA) and sodium vinylsulfonate (VS). This waterborne, phase-separated polymer can be sprayed onto foams, where the hydroxyl groups in the HEA lead to strong H-bonding and the sodium sulfonate groups in the VS provide fire retardancy. The coating does not affect the thermal insulation properties of the foam but can self-extinguish a flame with low heat and smoke release because of its tendency to char.
ACS Nano 10.1021/acsnano.1c02254 (2021).
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