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中文摘要：
通过红外光谱分析,凝胶转化率测定及力学性能测试研究了不同光引发剂(安息香双甲醚(DMPA),2-羟基-2-甲基苯基丙酮(HMPP)和二苯甲酮/三乙胺(BP/TEA))和不同配比稀释剂(苯乙烯(ST)和甲基丙烯酸甲酯(MMA))对不饱和聚酯光固化体系性能的影响。结果表明,质量分数1%的DMPA拥有较高的光引发活性,适合作为UP/ST/MMA体系的光引发剂,当m(ST)/m(MMA)=9∶1时,固化物冲击强度和弯曲强度达到最大,分别为17.33 k J/m2和168.3 MPa,拉伸强度则在m(ST)/m(MMA)=6∶4时达到最大值65.8 MPa。
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