IPDI改性紫外光固化环氧丙烯酸酯涂料的研究  

Study of UV-Curable IPDI Modified Epoxy Acrylate Coatings

作　　者：张晓蕾 费学梅 周海军 刘会强 李彦涛 

机构地区：[1]河北省能源研究所,石家庄050081 [2]衡水宝力工程橡胶有限公司,河北衡水053000 [3]河北省化学工业研究院,石家庄050031

出　　处：《涂料工业》2010年第1期60-62,共3页Paint & Coatings Industry

摘　　要：通过异佛尔酮二异氰酸酯(IPDI)改性环氧丙烯酸酯(四氢邻苯二甲酸二缩水甘油丙烯酸酯),以此改性预聚物配合活性稀释剂、光引发剂制得紫外光固化涂料。考察了不同—NCO与—OH配比对产物黏度的影响。通过FT-IR对预聚物的结构进行表征,用TGA研究固化膜的热性能,拉伸实验研究固化膜的力学性能。结果表明,反应物中当—NCO与—OH的物质的量比小于1时,—NCO与—OH比值越高则产物的黏度越大;改性后的光固化薄膜的拉伸强度能达到23 MPa以上,断裂伸长率比未改性以前提高了3倍以上,开始热分解的温度为150℃。The epoxy acrylate （ tetrahydrocannabinol phthalate glycidyl acrylate） was modified by IPDI to prepare aprepolymer, which was used to formulate a UV -curing coating together with, active diluent and photoinitiator. The influence of NCO/OH on viscosity of product was investigated. The structure of UV - curing prepolymer was characterized by FT - IR. The thermal properties of cured film were studied by TGA and the mechanical properties were studied by tensile test. The results showed that the higher NCO/OH ratio led to higher viscosity of the product. Tensile strength of the UV - cured coatings film was above 23 MPa. The elongation at break was increased by 3 times and the on -set decomposition temperature was 150℃.

关 键 词：IPDI 紫外光固化 环氧丙烯酸酯 

分 类 号：TQ630.7[化学工程—精细化工]