UV light has poor penetration in the photo-curable thick pigment coatings, and their small photo-curing depths were often measured. In order to increase the photo-curing depths, the photoluminescent ZnO nanoparticles (NPs) photoinitiators were synthesized and added into the photo-curable thick pigment coatings. With the sol-gel method, the ZnO NPs synthesis conditions (stirring speed and peristaltic pump speed for dropping NaOH) were optimized by the data of X-ray diffraction, photoluminescence spectra, particle sizes, and zeta potentials etc. The results showed that the best stirring speed was 2200 r/min and the best peristaltic pump speed was 15 rpm. Then, the ZnO NPs photoinitiators were added into the photo-curable thick coatings with SiO₂ and TiO₂, and their photo-curing depths were increased, which were compared with those of without ZnO NPs. The maximum photo-curing depths were 11 mm of SiO₂ and 7.8 mm of TiO₂, respectively, with 0.4 wt% ZnO NPs. Furtherly, the ZnO NPs photoinitiators were chemically bonded onto the pigments' surface using a silane coupling agent, 3-aminopropyl triethoxysilane. The results of infrared spectra, energy dispersion analysis, scanning electron microscopy, and thermogravimetric data demonstrated that this modification was successful. Their maximum photo-curing depths of the modified SiO₂ and TiO₂ systems were increased to be 14 mm and 11 mm, respectively. This investigation confirmed that the using of the photoluminescent ZnO NPs photoinitiators was an effective strategy for the deep photo-curing of the thick photo-curable pigment coatings.

紫外光在可光固化的厚颜料涂层中的穿透力很差，并且经常测量它们小的光固化深度。为了增加光固化深度，合成了光致发光的 ZnO 纳米粒子 (NPs) 光引发剂，并将其添加到光固化厚颜料涂层中。采用溶胶-凝胶法，通过X射线衍射、光致发光光谱、粒径、zeta电位等数据优化了ZnO纳米粒子的合成条件（搅拌速度和滴加NaOH蠕动泵的速度）。最佳搅拌速度为2200 r/min，最佳蠕动泵速度为15 rpm。然后，将 ZnO NPs 光引发剂添加到具有 SiO ₂和 TiO _{2的光固化厚涂层中}, 并且它们的光固化深度增加, 与没有 ZnO NPs 的相比。具有 0.4 wt% ZnO NPs的最大光固化深度分别为 11 mm 的 SiO ₂和 7.8 mm 的 TiO _{2 。}此外，使用硅烷偶联剂 3-氨基丙基三乙氧基硅烷将 ZnO NPs 光引发剂化学键合到颜料表面。红外光谱、能量色散分析、扫描电子显微镜和热重数据的结果表明这种修改是成功的。改性SiO ₂和TiO _{2的最大光固化深度}系统分别增加到 14 毫米和 11 毫米。该研究证实，使用光致发光的 ZnO NPs 光引发剂是对厚的可光固化颜料涂层进行深度光固化的有效策略。