UV-curable matting composites were prepared by micron silica matting agent, polyether diol (PPG), isophorone diisocyanate (IPDI), and 2-hydroxyethyl methacrylate (HEMA) via the in situ polymerization method. The structure, surface morphology, and thermal stability of the composites were characterized by FTIR, SEM, and TGA, respectively. As the main resin in the UV-curable coating, the effects of particle sizes of silica on the gloss, abrasion resistance, adhesion, and hydrophilic properties of coatings were measured. The results show that the agglomeration phenomenon of the modified silica in the composite coating was obviously improved. The smaller the particle size, the lower the gloss of coatings with the same content. The adhesion strength and abrasion resistance of the composites were superior to those of pure UV-curing coatings without silica. The greater the particle sizes of the added modified silica, the stronger the hydrophilicity of the composite.

通过微米级二氧化硅消光剂，聚醚二醇（PPG），异佛尔酮二异氰酸酯（IPDI）和甲基丙烯酸2-羟乙酯（HEMA），通过原位聚合方法制备了可紫外光固化的消光复合材料。通过FTIR，SEM和TGA分别表征了复合材料的结构，表面形貌和热稳定性。作为紫外光固化涂料中的主要树脂，测量了二氧化硅的粒径对涂料的光泽度，耐磨性，附着力和亲水性的影响。结果表明，改性二氧化硅在复合涂层中的团聚现象得到了明显改善。粒径越小，相同含量的涂料的光泽度越低。该复合材料的粘合强度和耐磨性优于不含二氧化硅的纯紫外线固化涂料。加入的改性二氧化硅的粒径越大，复合材料的亲水性越强。