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Oil-repellent and antifog coatings based on poly(vinyl alcohol)/hydrolyzed poly (styrene-co-maleic anhydride)/fluorocarbon surfactant
Progress in Organic Coatings ( IF 6.6 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.porgcoat.2020.105560
Shuai Luo , Xiao-Xi Peng , Yun-Fei Zhang , Ping Fu , Fei-Peng Du

Abstract In order to improve the oil-repellent and antifouling ability of the antifog coatings, a poly(vinyl alcohol)/hydrolyzed poly (styrene-co-maleic anhydride)/fluorocarbon surfactant (PVA/H-PSMA/FC) was prepared by incorporating a fluorocarbon surfactant into PVA/H-PSMA via hydrogen bonds. The microstructure, antifog and oil-repellent properties were investigated in our study, and the results indicate that the strong interaction between the PVA/H-PSMA and the FC provides a good fixation for the FC inside or on the surface of the coatings. The water contact angle (WCA) ranges from 59° to 69° and the oil contact angle (OCA) ranges from 35° to 50°, which means that the PVA/H-PSMA/FC coatings are hydrophilic and oleophilic. The results also demonstrate that the prepared PVA/H-PSMA/FC coating exhibits excellent antifog properties and high transparency. Moreover, the oil droplets may slip off the coating surface without any residue and the glide angle is below 12°. A low content of FC loaded creates a large space between FC molecules, thus providing enough hydrophilicity on the PVA/H-PSMA surface and achieving excellent antifog performance. Meanwhile, the mobile fluorinated alkyl chains on the surface can be reorganized and act as “slides” to easily move oil droplets at low TA, providing oil repellency. The excellent oil-repellency makes the transparent PVA/H-PSMA/FC antifog coatings have potential application prospects in the field of surface protection of optical equipment and solar panel.

中文翻译:

基于聚(乙烯醇)/水解聚(苯乙烯-共-马来酸酐)/氟碳表面活性剂的拒油和防雾涂料

摘要 为了提高防雾涂料的拒油防污能力,通过掺入聚(乙烯醇)/水解聚(苯乙烯-共-马来酸酐)/氟碳表面活性剂(PVA/H-PSMA/FC)制备了通过氢键将氟碳表面活性剂转化为 PVA/H-PSMA。在我们的研究中研究了微观结构、防雾和拒油性能,结果表明 PVA/H-PSMA 与 FC 之间的强相互作用为 FC 内部或涂层表面提供了良好的固定。水接触角(WCA)范围为59°至69°,油接触角(OCA)范围为35°至50°,这意味着PVA/H-PSMA/FC涂层具有亲水性和亲油性。结果还表明,制备的 PVA/H-PSMA/FC 涂层表现出优异的防雾性能和高透明度。此外,油滴可以从涂层表面滑落而不会留下任何残留物,并且滑行角低于12°。低含量的 FC 负载在 FC 分子之间产生较大的空间,从而在 PVA/H-PSMA 表面提供足够的亲水性并实现优异的防雾性能。同时,表面上可移动的氟化烷基链可以重组并充当“幻灯片”,以在低 TA 下轻松移动油滴,提供拒油性。优异的拒油性使得透明PVA/H-PSMA/FC防雾涂层在光学设备和太阳能电池板的表面保护领域具有潜在的应用前景。油滴可无残留地从涂层表面滑落,滑移角小于12°。低含量的 FC 负载在 FC 分子之间产生较大的空间,从而在 PVA/H-PSMA 表面提供足够的亲水性并实现优异的防雾性能。同时,表面上可移动的氟化烷基链可以重组并充当“幻灯片”,以在低 TA 下轻松移动油滴,提供拒油性。优异的拒油性使得透明PVA/H-PSMA/FC防雾涂层在光学设备和太阳能电池板的表面保护领域具有潜在的应用前景。油滴可无残留地从涂层表面滑落,滑移角小于12°。低含量的 FC 负载在 FC 分子之间产生较大的空间,从而在 PVA/H-PSMA 表面提供足够的亲水性并实现优异的防雾性能。同时,表面上可移动的氟化烷基链可以重组并充当“幻灯片”,以在低 TA 下轻松移动油滴,提供拒油性。优异的拒油性使得透明PVA/H-PSMA/FC防雾涂层在光学设备和太阳能电池板的表面保护领域具有潜在的应用前景。同时,表面上可移动的氟化烷基链可以重组并充当“幻灯片”,以在低 TA 下轻松移动油滴,提供拒油性。优异的拒油性使得透明PVA/H-PSMA/FC防雾涂层在光学设备和太阳能电池板的表面保护领域具有潜在的应用前景。同时,表面上可移动的氟化烷基链可以重组并充当“幻灯片”,以在低 TA 下轻松移动油滴,提供拒油性。优异的拒油性使得透明PVA/H-PSMA/FC防雾涂层在光学设备和太阳能电池板的表面保护领域具有潜在的应用前景。
更新日期:2020-04-01
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