文献类型：期刊文献

英文题名：Preparation of superhydrophobic polybenzoxazine/SiO2 films with self-cleaning and ice delay properties

作者：Zhang, He[1];Lu, Xin[1];Xin, Zhong[1];Zhang, Wenfei[1];Zhou, Changlu[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Struct Mat Chem Engn, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：123

起止页码：254

外文期刊名：PROGRESS IN ORGANIC COATINGS

收录：;EI(收录号：20182905563418);WOS:【SCI-EXPANDED(收录号:WOS:000444357000030)】；

基金：This work has received financial supports from National Natural Science Foundation of China (No. 21776091, 21776080, 21506062), Fundamental Research Funds for the Central Universities (No. 222201717025), and Program of Leading Talents of Shanghai (2013).

语种：英文

外文关键词：Superhydrophobic; Polybenzoxazine; Self-cleaning; Ice delay

摘要：Ice accumulation is a serious problem around the world, especially in cold regions. It is believed that a super hydrophobic surface has the potential to realize ice delay. Herein, we report an approach to fabricate super hydrophobic films combined with pendent aliphatic chain-substituted polybenzoxazine and silica nanoparticles (SiO2 NPs) through spin coating and thermal curing. As a result, a superhydrophobic polybenzoxazine/SiO2 film with a static water contact angle of 167 2 and a water sliding angle of 5 was developed, which exhibits self-cleaning properties. The polybenzoxazine/SiO2 film also exhibits ice delay properties owing to the decrease in the liquid-solid contact area and heat loss caused by air pockets under the micro-nano structure of the super hydrophobic film. Furthermore, the superhydrophobic polybenzoxazine/SiO2 film retains its super hydrophobicity after heat treatment for 1 h within a wide temperature range. Moreover, the as-prepared superhydrophobic films are also stable over a wide pH range, from 1 to 14, or after UV exposure for 10 h.