Xu Hua, Chen Chao, Hu Shunfeng, Chen Yiqi, Duan Dengle, Liang Guowei, Zhong Ximing
Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
Polymers (Basel). 2025 Jan 23;17(3):302. doi: 10.3390/polym17030302.
Highly transparent anti-smudge coatings are attractive for diverse fields due to their inherent repellency against various contaminants and the ability to keep surfaces clean. In this work, a novel fluorine-free anti-smudge coating system was developed by using poly(dimethysiloxane), tris(hydroxymethyl) aminomethane, and isophorone diisocynate to synthesize a hexa-functional coating precursor and utilizing hexamethylene diisocyanate trimer as a curing agent. The resultant anti-smudge coatings are highly transparent and can be applied to various substrates. These coatings exhibit repellency against water, hexadecane, ink, pump oil, and crude oil and show self-cleaning performance in air and oily environments. Moreover, they display anti-ink ability and can be employed to reduce bacterial contamination. Of note, they can endow substrates with protection against corrosion from strong acids, strong bases, salt solutions, and even aqua regia. The developed coatings also show potential for controllable liquid transport. Moreover, these versatile coatings are mechanically robust, demonstrating tolerance against abrasion, impact, and bending and also exhibiting excellent adhesion to various substrates, indicative of their availability for widespread applications.
高度透明的防污涂层因其对各种污染物的固有排斥性以及保持表面清洁的能力而在不同领域具有吸引力。在这项工作中,通过使用聚二甲基硅氧烷、三(羟甲基)氨基甲烷和异佛尔酮二异氰酸酯合成一种六官能团涂层前体,并利用六亚甲基二异氰酸酯三聚体作为固化剂,开发了一种新型无氟防污涂层体系。所得的防污涂层具有高度透明性,可应用于各种基材。这些涂层对水、十六烷、墨水、泵油和原油具有排斥性,并在空气和油性环境中表现出自清洁性能。此外,它们还具有抗墨水能力,可用于减少细菌污染。值得注意的是,它们可以赋予基材抵抗强酸、强碱、盐溶液甚至王水腐蚀的能力。所开发的涂层还显示出可控液体传输的潜力。此外,这些多功能涂层机械性能强劲,表现出耐磨损、耐冲击和耐弯曲性,并且对各种基材具有优异的附着力,表明它们可广泛应用。