Zheng Lu, Lin Yucai, Wang Donghui, Chen Jipeng, Yang Ke, Zheng Binbin, Bai Weibin, Jian Rongkun, Xu Yanlian
College of Chemistry and Materials, Fujian Normal University Fuzhou 350007 P. R. China
Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineering Fuzhou 350007 P. R. China.
RSC Adv. 2020 Apr 15;10(24):13936-13943. doi: 10.1039/d0ra02205e. eCollection 2020 Apr 6.
Silver nanoparticle-based coatings have been regarded as promising candidates for marine antifouling. However, current toxic fabrication methods also lead to environment risks. Nanoparticle agglomeration, poor compatibility with polymer, and rapid release of Ag result in short-term efficacy. In this study, a facile one-pot synthesis method of silver nanoparticles (AgNPs) encapsulated in polymeric urushiol (PUL) was developed. AgNPs were synthesized by natural urushiol, serving as a reductant, dispersant and surfactant. Simultaneously, silver nitrate catalyzed the polymerization of urushiol into PUL. This reduction method made AgNPs uniformly distributed in the polymer matrix. The binding between the AgNPs and the PUL resulted in the stable release of Ag. Results showed the antibacterial rate of a 0.1% AgNPs coating is 100% in laboratory experiments. This environment-friendly coating showed good microbial inhibition performance with long-term (120 days) marine antifouling efficacy. This study shows the potential of preparing an eco-friendly coating with long-term marine antifouling ability.
基于银纳米颗粒的涂层被认为是海洋防污的有前途的候选材料。然而，目前的有毒制造方法也会导致环境风险。纳米颗粒团聚、与聚合物的相容性差以及银的快速释放导致短期效果不佳。在本研究中，开发了一种简便的一锅法合成包裹在聚合漆酚（PUL）中的银纳米颗粒（AgNPs）的方法。AgNPs由天然漆酚合成，漆酚作为还原剂、分散剂和表面活性剂。同时，硝酸银催化漆酚聚合成PUL。这种还原方法使AgNPs均匀分布在聚合物基质中。AgNPs与PUL之间的结合导致银的稳定释放。结果表明，在实验室实验中，0.1%AgNPs涂层的抗菌率为100%。这种环保涂层具有良好的微生物抑制性能，具有长期（120天）的海洋防污效果。这项研究显示了制备具有长期海洋防污能力的生态友好涂层的潜力。
