Superhydrophobic and antibacterial wood enabled by polydopamine-assisted decoration of copper nanoparticles
Superhydrophobic and antibacterial wood enabled by polydopamine-assisted decoration of copper nanoparticles
复制标题
通过铜纳米粒子的聚多巴胺辅助装饰实现超疏水和抗菌木材
DOI：
10.1016/j.colsurfa.2020.125145
复制
发表时间：
2020-10-05
影响因子：
5.2
通讯作者：
Jin, Chunde
中科院分区：
文献类型：
--
作者：
Duan, Xinpeng;Liu, Shumin;Jin, Chunde
木单板在室内装饰装修中已得到广泛应用，但由于吸水变形和细菌侵蚀等原因，其应用受到限制。本文采用一种简单有效的方法在木材单板表面制备了具有超疏水抗菌性能的铜涂层。采用多巴胺自聚合、化学沉积铜纳米粒子、氟硅烷疏水改性的方法制备了具有超疏水抗菌性能的木质单板。所得铜镀层的水接触角和滑动角分别达到155.7 °和4 °。同时，该涂层对不同pH值的酸碱溶液、不同温度的老化和机械损伤具有良好的耐受性，并具有良好的自清洁能力。此外，改性木材对大肠杆菌和金黄色葡萄球菌也表现出较好的抗菌活性。本研究为赋予木材单板超疏水抗菌性能，促进其多功能化应用提供了新的途径。
Wood veneer had been widely used in interior decoration or fitment, but its application was still limited due to deformation after absorbing water and bacterial erosion. In this paper, a Cu coating owned superhydrophobic and antibacterial capabilities on wood veneer was fabricated by a facile and valid method. The wood veneer with superhydrophobic and antibacterial properties was prepared by self-polymerization of dopamine, chemical deposition of Cu nanoparticles, and hydrophobic modification using fluorosilane. The water contact angle and sliding angle of obtained Cu coating reached 155.7 degrees and 4 degrees, respectively. Meanwhile, the as-prepared coating showed resistance to acid or base solutions with different pH values, different temperatures aging and mechanical damages, and also displayed a good self-cleaning ability. In addition, the modified wood exhibited outstanding antibacterial activities towards Escherichia coli and Staphylococcus aureus. This work supplied a novel way to endow the superhydrophobic and antibacterial properties on wood veneer, and promote its multifunction application.