丙烯酸酯
材料科学
聚氨酯
异佛尔酮二异氰酸酯
接触角
高分子化学
化学工程
嫁接
丙烯酸丁酯
双键
羟甲基
复合材料
共聚物
聚合物
有机化学
化学
工程类
作者
Yang Jiang,Shaofei Wang,Changhai Xu,Jinmei Du
摘要
Abstract In this work, polyurethane/acrylate waterborne hybrid polymer (WPUA) colloids were synthesized by grafting with a new diol agent containing carbon–carbon double bond to create chemical bonds between polyurethane and polyacrylate chains. WPUAs were obtained by a solvent‐free and surfactant‐free method with isophorone diisocyanate (IPDI), poly(tetrahydrofuran) (PTMG), 2,2‐bis(hydroxymethyl)butyric acid, and diol grafting agent in the polyurethane part, and methyl methacrylate, n‐butyl acrylate, and octadecyl acrylate in the polyacrylate portion. When the R value was 1.5 and WPU/PA was 5:5, hybrid WPUA dispersion was obtained with the satisfied particle size and colloidal stability. WPUA dispersion was applied on textile substrates for water repellent. Scanning electron microscope results showed that WPUA covered the fabric surface and formed a thin film. Contact angle measurements of water have revealed that the addition of WPUA to the textile improved the water repellency and increased the contact angle to 152°. Moreover, WPUA coated fabrics had good durability against washing. After 50 laundering cycles, the static water contact angle of the fabric coated with the WPUA could maintain at 143°.
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