【摘要】 以异佛尔酮二异氰酸酯（IPDI）、聚四氢呋喃醚二醇（PTMEG）、甲基丙烯酸羟乙酯（HEMA）和3-氨基丙基三乙氧基硅烷（KH-550）为原料，合成了硅氧烷改性的聚氨酯丙烯酸酯（PUA）紫外光/湿气双重固化树脂。将该双重固化树脂与光引发剂二苯基-（2,4,6-三甲基苯甲酰）氧磷（TPO）及活性稀释剂1,6-己二醇二丙烯酸酯（HDDA）混合，无溶剂法制备了紫外光/湿气双重固化胶粘剂，并对其进行结构和性能表征。研究结果表明：成功合成了含有硅氧烷的PUA预聚体；经过一段时间湿气固化的胶粘剂双键转化率为99%；当活性稀释剂HDDA的含量为胶粘剂总质量的50%且KH-550为PUA预聚物总质量的0.6%时，双重固化胶粘剂的表干时间仅为数秒，其固化速率迅速，拉伸剪切强度可达2.88 MPa，所制得的双重固化胶粘剂的机械性能和热稳定性较好。更多还原

【Abstract】 Siloxane-modified polyurethane acrylate(PUA) UV/moisture dual curing resin was synthesized by using isophorone diisocyanate(IPDI),polytetramethylene ether glycol(PTMEG),2-hydroxyethyl methacrylate(HEMA) and 3-aminopropyltriethoxysilane(KH-550) as raw materials. The dual curing resin was mixed with the photoinitiator diphenyl-(2, 4, 6-trimethylbenzoyl) phosphine oxide(TPO) and active diluent 1, 6-hexanediol diacrylate(HDDA),the UV/moisture dual curing adhesive was prepared by solvent-free method,and its structure and properties were characterized. The research results showed that PUA prepolymer containing siloxane was successfully synthesized.The conversion rate of double bonds of adhesive after a period of moisture curing was 99%.When the content of active diluent HDDA was 50% of the total mass of adhesive and KH-550 was 0.6% of the total mass of PUA prepolymer,the surface drying time of dual curing adhesive was only a few seconds,its curing rate was rapid,and the tensile shear strength could reach 2.88 MPa.The mechanical properties and thermal stability of the prepared dual curing adhesive were relatively good.更多还原