Superhydrophobic polystyrene coating based on phase separation of raspberry structure particle
Superhydrophobic polystyrene coating based on phase separation of raspberry structure particle
复制标题
基于树莓结构颗粒相分离的超疏水聚苯乙烯涂层
DOI：
10.1007/s00396-021-04891-w
复制
发表时间：
2021-09
影响因子：
2.4
通讯作者：
Mingyao Zhang
中科院分区：
文献类型：
--
作者：
Lu Xu;Hongjuan Jin;Di Wu;Baijun Liu;Mingyao Zhang
以甲基丙烯酰氧乙基三甲基氯化铵(DMC)为阳离子共聚单体，采用分散聚合法制备单分散带正电的聚苯乙烯(PS)粒子。以带正电荷的PS和带负电荷的二氧化硅(SiO_2)为原料，通过静电吸附制备了具有树莓状结构的聚苯乙烯/SiO_2(PS/SiO_2)复合微球。采用浸涂法制备了一种新型的超疏水涂层。然后，将涂层浸泡在正己烷(0.1wt%)的七氟十二烷基三甲氧基硅烷溶液中，进行表面超疏水修饰。最终得到静态接触角为158°，滑动角为3°的超疏水涂层。此外，通过添加二乙烯基苯(DVB)和改变SiO_2的用量和尺寸，研究了树莓粒子的粗糙度和交联结构对涂层疏水性能的影响。PS/SiO_2复合粒子制备超疏水涂层的机理图。
In this work, monodisperse positively charged polystyrene (PS) particles with a particle size of 900 nm were prepared by dispersion polymerization using methacryloxyethyltrimethyl ammonium chloride (DMC) as a cationic comonomer. The polystyrene/silica (PS/SiO2) composite microspheres with a raspberry structure are formed by electrostatic adsorption prepared using positively charged PS adsorbed negatively charged silicon dioxide (SiO2). A novel superhydrophobic coating was constructed by a dip-coating method. Then, the coating film was immersed in a solution of heptadecafluorodecyl trimethoxysilane in n-hexane (0.1 wt%) to carry out surface superhydrophobic modification. Finally, a superhydrophobic coating with 158° static contact angle and 3° sliding angle was obtained. In addition, by adding divinylbenzene (DVB) and changing the amount and size of SiO2, the effect of the roughness level and cross-linking structure of raspberry particles on the hydrophobic properties of the coating was studied.Graphical abstractMechanism diagram of superhydrophobic coating prepared by PS/SiO2composite particles.
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影响因子：
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作者：
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通讯作者：
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DOI：
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