Pan Pan, Yan Xiaoxing
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China.
Polymers (Basel). 2023 Mar 30;15(7):1722. doi: 10.3390/polym15071722.
In this paper, nanosilver solution was used as an antibacterial agent to prepare antibacterial microcapsules. The mass ratio of the core material to the wall material (W: W), the emulsifier's hydrophilic-lipophilic balance (HLB) value, the mass ratio of ethanol to the emulsifier in solvent (W: W), and the rotational speed (r/min) were used to develop the four-factor, three-level orthogonal experiment, which was meant to investigate the most significant factors and the optimum process preparation parameters impacting the coating rate and yield of microcapsules. It was used to make an antibacterial coating that was applied to the surface paint film of a glass substrate and andoung wood, and it was mixed to the water-based primer with a content of 4%. Analyses of the mechanical, optical, and bactericidal characteristics were conducted. The micromorphology of the nanosilver solution microcapsules is influenced by the emulsifier's HLB value. The color difference of the antibacterial coating film decreased with increasing emulsifier HLB value; however, the coating film's gloss remained largely suitable. Additionally, the coating film's transparency and tensile strength both decreased. It had minimal impact on the paint film's surface hardness, but the adhesion and tensile strength showed a noticeable downward trend. The surface of the paint film was rough. and were resistant to the antibacterial characteristics of the water-based primer film when it was combined with antibacterial nanosilver solution microcapsules by 80.7% and 74.55%, respectively. The coating film's antibacterial properties were applied to the surface of the andoung wood, which were 75.7% and 71.0%, respectively, and somewhat decreased. In order to successfully inhibit bacteria, the nanosilver solution microcapsules were added to waterborne coatings. This ensures both the outstanding performance of the coating film and the effectiveness of the antibacterial effect. It expands the application prospects of antibacterial microcapsules in coatings.
在本文中，纳米银溶液被用作抗菌剂来制备抗菌微胶囊。采用芯材与壁材的质量比（W:W）、乳化剂的亲水亲油平衡（HLB）值、溶剂中乙醇与乳化剂的质量比（W:W）以及转速（r/min）进行四因素三水平正交试验，旨在研究影响微胶囊包封率和产率的最显著因素及最佳工艺制备参数。将其制成抗菌涂料，涂覆于玻璃基板和安豆木的表面漆膜上，并以4%的含量混入水性底漆中。进行了力学、光学和杀菌特性分析。纳米银溶液微胶囊的微观形态受乳化剂HLB值的影响。抗菌涂膜的色差随乳化剂HLB值的增加而减小；然而，涂膜的光泽度基本保持适宜。此外，涂膜的透明度和拉伸强度均下降。它对漆膜的表面硬度影响最小，但附着力和拉伸强度呈明显下降趋势。漆膜表面粗糙。当与抗菌纳米银溶液微胶囊结合时，安豆木水性底漆膜的抗菌特性分别有80.7%和74.55%得到了抵抗。抗菌性能应用于安豆木表面时，分别为75.7%和71.0%，略有下降。为了成功抑制细菌，将纳米银溶液微胶囊添加到水性涂料中。这既保证了涂膜的优异性能，又保证了抗菌效果的有效性。它拓展了抗菌微胶囊在涂料中的应用前景。
