Xia Yongxin, 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). 2024 May 16;16(10):1410. doi: 10.3390/polym16101410.
An orthogonal experiment was designed to prepare different UV topcoat microcapsules by adjusting the mass ratio of wall material to core material, HLB value of emulsifier, reaction temperature, and reaction time of UV topcoat microcapsule. By testing the morphology and multiple properties of UV topcoat microcapsules, it was found that the biggest factor affecting the synthesis of UV topcoat microcapsules is the emulsifier HLB value. In order to further optimize the performance of UV topcoat microcapsules, a single-factor experiment was conducted with the emulsifier HLB value as the variable, and it was found that the UV topcoat microcapsules achieved the best performance when the emulsifier HLB value was 10.04. The optimal UV topcoat microcapsules were added to the UV topcoat at different amounts to prepare UV topcoat paint films. Through testing the various properties of the UV topcoat paint film, it was determined that the performance of the UV topcoat paint film was optimal when the amount of UV topcoat microcapsules added to the UV topcoat was 4.0%. The optical properties of the UV topcoat paint film were tested, and the effect of UV topcoat microcapsules on the color difference and glossiness of the UV topcoat paint film was not significant. The tensile and self-healing performance of UV topcoat microcapsules were tested. UV topcoat microcapsules can enhance the toughness of the UV topcoat paint film to a certain extent, suppress the generation of microcracks, and have a good self-healing effect. The results provide experimental support for the preparation of microcapsules using UV coatings as core materials for the self-healing of UV coatings.
设计了正交实验，通过调整紫外光面漆微胶囊的壁材与芯材质量比、乳化剂的HLB值、反应温度和反应时间来制备不同的紫外光面漆微胶囊。通过测试紫外光面漆微胶囊的形态和多种性能，发现影响紫外光面漆微胶囊合成的最大因素是乳化剂的HLB值。为了进一步优化紫外光面漆微胶囊的性能，以乳化剂的HLB值为变量进行了单因素实验，发现当乳化剂的HLB值为10.04时，紫外光面漆微胶囊的性能最佳。将最佳的紫外光面漆微胶囊以不同的量添加到紫外光面漆中制备紫外光面漆漆膜。通过测试紫外光面漆漆膜的各种性能，确定当紫外光面漆微胶囊添加到紫外光面漆中的量为4.0%时，紫外光面漆漆膜的性能最佳。测试了紫外光面漆漆膜的光学性能，发现紫外光面漆微胶囊对紫外光面漆漆膜的色差和光泽度影响不显著。测试了紫外光面漆微胶囊的拉伸和自修复性能。紫外光面漆微胶囊可以在一定程度上提高紫外光面漆漆膜的韧性，抑制微裂纹的产生，并且具有良好的自修复效果。研究结果为以紫外光涂料为芯材制备微胶囊用于紫外光涂料的自修复提供了实验支持。
