摘要： 以异佛尔酮二胺（ＩＰＤＡ）、碳酸丙烯酯（ＰＣ）、异佛尔酮二异氰酸酯（ ＩＰＤＩ）和丙烯酸羟乙酯（ＨＥＡ）为原料，合成了一种新型的光固化聚氨酯丙烯酸酯（ＰＵＡ），通过红外对其进行了表征，研究了 ＰＵＡ 合成的最优实验条件，对其光固化过程和涂膜性能进行了分析。 结果表明：当用 ７％的光引发剂 Ｉｒｇａｃｕｒｅ １８４ 引发 ＰＵＡ 固化时，其双键的最终转化率最高，可达 ９３.７％；涂膜性能较好，表面干燥，硬度达到 ３Ｈ。

关键词: 异佛尔酮二胺, 紫外光固化, 聚氨酯丙烯酸酯, 合成

Abstract: Using isophorone diamine (IPDA), propylene carbonate(PC), isophorone di- isocyanate(IPDI) and hydroxyethyl acrylate(HEA )as raw materials, a novel Uv-curable polyurethane acrylate( PUA was synthesized, and characterized by FT-IR. The optimized synthesis condition of the PUA was studied and their curing processes and physical properties were further investigated. The results showed that the optimum dosage of photoinitiator Irgacure 184 was 7%, whereby the final double bond conversion rate of the PUA could reach 93. 7%. Meanwhile, the cured films had better properties such as dry surface and high pencil hardness(3H).

Key words: isophorone diamine, UV curable polyurethane acrylate;synthesis