低黏度紫外光敏树脂的制备及性能研究  

Preparation and properties of low viscosity UV-sensitive resin

作　　者：冯波[1] 朱超[1] 张禹[1] 张婉容[1] 万凯[1] 艾照全[1] 

机构地区：[1]有机功能分子合成与应用教育部重点实验室,湖北大学化学化工学院,湖北武汉430062

出　　处：《粘接》2016年第12期46-50,54,共6页Adhesion

摘　　要：分别以乙二胺(EDA)、二乙撑三胺(DETA)、三乙撑四胺(TETA)为引发核心,二缩三丙二醇二丙烯酸酯(TGPDA)为支化单元,利用官能团反应活性的差别,采用发散法合成了引发核心为胺类,端基含不同丙烯酸酯双键的树枝状系列光敏树脂,用黏度计测得树枝状系列树脂的绝对黏度均不超过50 m Pa·s,具有超低的黏度和良好的流体力学性能。通过紫外固化制备了树脂涂膜,对其性能进行测试,结果表明,合成的树枝状树脂端基含丙烯酸酯双键越多,固化速度越快,表干时间越短,涂膜硬度为4 H、附着力可达2级;常温浸泡24 h后表面无泛白、起皱;经丙酮、甲乙酮等有机溶剂擦拭200次后涂膜表面无明显变化,耐水性、耐溶剂性良好。With ethylenediamine （EDA）, diethylenetriamine （DETA） or triethylenetetramine （TETA） as the initiator core, tripropyleneglycol diacrylate （TGPDA） as the branch units, and by means of the activity difference of functional groups, a series of UV-sensitive dendritic resins was synthesized by using the divergent synthesis method and amine as the initiator core, in which the end groups contain different amount of acrylate double bonds. The viscometer measured absolute viscosity of the series ofdendrimers resins was less than 50 raP.s, and the resins had ultralow viscosity and good hydrodynamic performance. The resin coating films were prepares from the resins by UV curing, and their properties were tested. The results showed that the more the acrylate double bond amount of end groups ofdendrimers resin, the faster the curing speed, the shorter the surface drying time; and the film hardness was 4 H, while adhesion was up to grade 2; after immersing the film surface into water at room temperature for 24 h, no whitening and wrinkle; after wiping the coating film surface of 200 times with acetone, methyl ethyl ketone and other organic solvents, the coating film surface did not have obvious change, which showed that the coating film had good resistance to water and solvents.

关 键 词：发散法 光敏树脂 紫外固化 表干时间 

分 类 号：TQ433.43[化学工程]