有机硅改性聚氨酯丙烯酸酯胶黏剂的合成与性能

摘要

通过硅氢加成反应,将有机硅引入到聚氨酯丙烯酸酯链中,得到了有机硅改性的可UV固化的胶粘剂.研究了不同光催化剂、不同DOP含量、以及不同照射时间对其性能的影响.在DOP添加量3%,照射时间10s的条件下,得到的胶膜透光率达到89%,拉伸强度达到16.12MPa.%The UV-curable PUA adhesive modified by organic silicone was synthesized through Si-H addition reaction.The effects of different photocatalyst,the dosage of DOP,and the time of radiation on the performance of the UV-curable adhesive were researched.The adhesive shows the good performances of tensile strength of 16.12MPa,89% transmittance of UV under the conditions of 3% DOP dosage and 10s curing time.