紫外光固化蓖麻油型聚氨酯-甲基丙烯酸羟乙酯网络聚合物的合成

Synthesis of Ultraviolet Cured Castor Oil Polyurethane Network

本工作对蓖麻油/甲苯二异氰酸酯(TDI)/甲基丙烯酸羟乙酯(HEMA)形成的预聚体和不同的活性稀释剂以不同的光敏剂在紫外光照射下的产物进行了红外光谱和力学性能的测定。结果表明:该体系能形成很好的网络聚合物。所有的产品不仅透明度高,而且都具有一定的机械强度,但仍具有两相结构。

A series of castor oil-urethane acrylate prepolymer was synthesized by reacting castor oil with toluene diisocyanate hydroxyethyl methacrylate adducts in different ratio.The oligomers were cured by ultraviolet radiation in the presence of different reactive diluents and photoinitiators,All of the cured samples were transparent with fairly good mechanical strength.