溶胶-凝胶法制备有机/无机杂化材料及其在光固化涂料中的应用

Preparation of Organic/Inorganic Hybrid Material by the Sol-Gel Process and Its Application in UV Cured Coatings

以正硅酸乙酯、3-缩水甘油醚氧基丙基三甲氧基硅烷为原料,氨水为催化剂,用溶胶-凝胶法制备了纳米级有机/无机杂化材料。考察了催化剂用量对该纳米杂化材料粒径大小的影响,结果表明,随着催化剂用量的增加,粒径越来越大。将不同量的有机/无机杂化材料加入光固化涂料中制备了杂化涂料,研究了固化膜的形态、力学性能及漆膜的性能。结果表明:杂化材料可以改善UV固化膜的硬度、附着力和抗冲性能。

Nano-organic/inorganic hybrid materials were prepared by sol-gel process with tetraethylortho silicate（TEOS） and（3-Glycidoxypropyl） trimethoxysilicane（GPTS） as raw material,and ammonia（NH3·H2O） as catalyst.The effect of catalyst content on the particle diameter of hybrid materials was studied.It was found that the particle diameter of hybrid materials increased when the content of catalyst increased.Hybrid materials homogenously dispersed into the UV curing coatings and cured with photoinitiator.The results showed that the hybrid materials significantly enhanced the hardness,adhesion,and impact strength of the hybrid coating.