"From the Nature for the Nature": An Eco-Friendly Antifouling Coating Consisting of Poly(lactic acid)-Based Polyurethane and Natural Antifoulant
"From the Nature for the Nature": An Eco-Friendly Antifouling Coating Consisting of Poly(lactic acid)-Based Polyurethane and Natural Antifoulant
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“源于自然，造就自然”：聚乳酸基聚氨酯与天然防污剂组成的环保型防污涂料
DOI：
10.1021/acssuschemeng.9b06917
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发表时间：
2020-01-27
影响因子：
8.4
通讯作者：
Zhang, Guangzhao
中科院分区：
文献类型：
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作者：
Pan, Jiansen;Xie, Qingyi;Zhang, Guangzhao
“源于自然，为了自然”是发展环保型涂料的指导思想。本工作通过硫醇烯反应和0加成聚合制备了具有可水解侧基的生物源聚乳酸基聚氨酯。这样的聚合物表现出高的粘合强度（类似于2.0MPa）和通过改变其软链段和TSA含量来调节的受控降解速率。将该聚合物与一种来源于海洋细菌的环保防污剂（丁烯基）制成环保涂料。我们的研究表明，丁烯二酸酯可以从涂层中以连续的方式释放，随着聚合物在海水中降解，具有受控的速率。数字全息显微镜跟踪分析表明，该涂料能有效抑制海洋细菌假单胞菌的附着，海上现场试验表明，该涂料具有良好的可持续性，可持续3个月以上。
"From the nature, for the nature" is an instructive strategy to develop environment-friendly antifouling coatings. In this work, bio-sourced poly(lactic acid)-based polyurethane with hydrolyzable triisopropylsilyl acrylate (TSA) side groups has been prepared via thiol ene reaction and 0 polyaddition. Such a polymer exhibits high adhesion strength (similar to 2.0 MPa) and a controlled degradation rate tuned by varying its soft segment and TSA content. An environment-friendly coating is prepared with the polymer and an eco-friendly antifoulant (butenolide) derived from marine bacteria. Our study shows that butenolide can be released from the coating in continuous manner with a controlled rate as the polymer degrades in seawater. Digital holographic microscopy tracking analysis demonstrates that the coating can effectively inhibit the adhesion of marine bacteria Pseudomonas sp. Marine field test shows that such coating has excellent antifouling ability for more than 3 months.