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Preparation of water-borne non-fluorinated anti-smudge surfaces and their applications
Progress in Organic Coatings ( IF 6.6 ) Pub Date : 2020-05-01 , DOI: 10.1016/j.porgcoat.2020.105581
Ximing Zhong , Meng Zhou , Sheng Wang , Heqing Fu

Abstract Existing approaches for the preparation of anti-smudge surfaces are prominently confined to the use of fluorinated materials and highly toxic organic solvents. Smooth water-borne non-fluorinated anti-smudge surfaces are highly desirable for their high safety, low cost and environmental friendliness, and they could also address the challenges plagued by the deficiencies in long-term stability, durability, and scalability existing in present coating systems. Herein, we, for the first time, develop a novel smooth non-fluorinated anti-smudge system by crosslinking the hydrophilic groups in two water-borne components. The resultant surfaces are highly transparent, and they show striking anti-smudge performance toward various liquids, including water, hexadecane, diiodomethane, decane, ethanol, etc. Besides, these surfaces demonstrate remarkable chemical shielding ability against acid solution and alkali solution and thus protect substrates against exposure to harsh chemical environments. Also, they exhibit self-healing ability against chemical and physical damages. Compared with commercial fluorinated amphiphobic surface and superhydrophobic surface, these non-fluorinated surfaces show incomparable advantages in anti-smudge performance, pump oil and crude oil droplets could slide off the surface without leaving any traces. Furthermore, these surfaces could be applied for anti-graffiti and anti-fingerprint purposes due to their outstanding anti-smudge performance toward water-borne and oil-borne paints, ink, and artificial fingerprint liquid. More strikingly, they could maintain anti-smudge performance even after being subjected to long-term UV irradiation and physical damages, such as impact and scratch, indicative of the remarkable weathering resistance and the outstanding mechanical durability of these coating surfaces. Therefore, excellent performances in addition to the cost-effective and environmentally-friendly features make these newly-developed smooth water-borne non-fluorinated anti-smudge surfaces promising for widespread applications.

中文翻译:

水性无氟防污面的制备及其应用

摘要 现有的防污表面制备方法主要局限于使用氟化材料和剧毒有机溶剂。光滑的水性非氟化防污表面因其高安全性、低成本和环境友好性而备受青睐,它们还可以解决现有涂料存在的长期稳定性、耐久性和可扩展性不足的挑战系统。在此,我们首次通过交联两种水性组分中的亲水基团,开发出一种新型光滑的非氟化防污体系。所得表面高度透明,对水、十六烷、二碘甲烷、癸烷、乙醇等各种液体显示出惊人的防污性能。这些表面对酸溶液和碱溶液具有显着的化学屏蔽能力,从而保护基材免受恶劣化学环境的影响。此外,它们对化学和物理损伤具有自愈能力。与商用氟化两性表面和超疏水表面相比,这些非氟化表面在抗污性能方面表现出无可比拟的优势,泵油和原油液滴可以从表面滑落而不留下任何痕迹。此外,由于这些表面对水性和油性涂料、油墨和人工指纹液具有出色的防污性能,因此可用于防涂鸦和防指纹用途。更引人注目的是,即使在受到长期紫外线照射和物理损坏(例如冲击和划伤)后,它们仍能保持抗污性能,表明这些涂层表面具有卓越的耐候性和出色的机械耐久性。因此,除了具有成本效益和环保特性外,这些新开发的光滑水性非氟化防污表面还具有优异的性能,有望得到广泛应用。
更新日期:2020-05-01
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