【作者】 刘敏；

【导师】 张可达；

【作者基本信息】 苏州大学 ， 应用化学， 2002， 硕士

【摘要】 本论文由两部分组成：一种新型阴极电泳涂料的研制；填充纳米二氧化硅对感光树脂性能的影响。 一、本文合成了含多羟基的阳离子型聚丙烯酸酯树脂，作为阴极电泳涂料的主体，并分别用氨基树脂和乙二醇单丁醚及苯酚封闭的异氰酸酯对其交联固化。研究了聚丙烯酸酯树脂中羟基结构单元、羟基的摩尔百分含量、不同类型的固化剂、固化剂的含量以及催化剂的用量对阴极电泳涂料固化反应的影响；最终制得可在145℃时固化的性能优异的阴极电泳涂料。 二、本文首先合成了紫外光固化环氧丙烯酸酯树脂，然后用在位分散法（in-situ）填充纳米二氧化硅（nm-SiO₂）到其小，并与填充普通二氧化硅相比较。研究了nm-SiO₂对感光树脂的流变性、透光率、热分解温度、力学性能等方面的影响。结构表明：nm-SiO₂对感光树脂的流变性影响较大；体系的透光率较高；不沉降分层；适当的添加量可明显提高其热分解温度及机械性能。更多还原

【Abstract】 The thesis consists of two parts: l.Resesrch and synthesis of a new type cathode clectrophoretic coating; 2. Effect of filling nanometer silica on properties of photocurable resin.1. A new type cathode electrophoretic coating was synthesized. Its main component is cationic polyacrylates resin with multi-hydroxy groups. The curing reaction of blocked isocyanates and amino resin with cationic polyacrylates was studied. The article is focused on discussion of the factors influencing the curing reaction, such as hydroxy building unit of polyacrylate, mole percent of hydroxy group, different curing agent, content of curing agent and content of catalyst. The cathode electrophoretic coating which cures at 145C with excellent properties was gained.更多还原