Toughening Modification of Unsaturated Polyester Resin Using HDI Trimer

武汉理工大学学报-材料科学版(英文版), 2009, 24(4): 627-630. doi: 10.1007/s11595-009-4627-2

^1, , ^2, , ^3, , ^4, , ^5,

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

2.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

4.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

5.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

基金项目: the Hubei Provincial Natural Science Fundation of China (2006ABA321)

Toughening Modification of Unsaturated Polyester Resin Using HDI Trimer

DUAN Huajun ^1, , ZHANG Lianmeng ^2, , WANG Jun ^3, , YANG Xiaoli ^4, , WANG Xiang ^5,

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

2.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

4.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

5.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Keywords： HDI trimer

HDI trimer was firstly used to improve the mechanical properties of hydroxyl-ter-minated unsaturated polyester(UP).Mechanical properties measurements performed on the cured materials demonstrate a distinct improvement in intensity and toughness in the presence of HDI trimer and shows the change trends of increase and then decrease.The morphological analysis of the fracture surfaces shows that the micro-phase separated structures appear in modified UPR systems and changed from dendritric,dimple and to cystiform structures with the increase of HDI trimer content.The presence of the cystiform structures made the modified UPR systems present the best properties.

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