| PPG相对分子质量对PPG/PAPI预聚体改性UPR性能的影响 |
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| 引用本文： | 郑程,王钧,段华军. PPG相对分子质量对PPG/PAPI预聚体改性UPR性能的影响[J]. 高科技纤维与应用, 2011, 36(2): 30-33 |
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| 作者姓名： | 郑程 王钧 段华军 |
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| 作者单位： | 武汉理工大学,材料科学与工程学院,武汉,430070 |
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| 摘 要： | 采用摩尔比为3:1的多苯基多次甲基多异氰酸酯(PAPI)与聚丙二醇(PPG)合成了活性端基聚氨酯(PU)预聚体,并与自制端羟基不饱和聚酯树脂共混改性,制得改性不饱和聚酯树脂(UPR).研究了不同相对分子质量的PPG对改性UPR粘度的影响;研究了PPG相对分子质量对改性UPR力学性能的影响;利用SEM对改性UPR冲击断面...
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| 关 键 词： | 多苯基多次甲基多异氰酸酯 聚丙二醇 相对分子质量 改性不饱和聚酯树脂 聚氨酯预聚体 |
Effect of Molecular Weight of PPG on the Properties of UPR Modified by PPG/PAPI Prepolymer |
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| ZHENG Cheng,WANG Jun,DUAN Hua-jun. Effect of Molecular Weight of PPG on the Properties of UPR Modified by PPG/PAPI Prepolymer[J]. Hi-Tech Fiber & Application, 2011, 36(2): 30-33 |
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| Authors: | ZHENG Cheng WANG Jun DUAN Hua-jun |
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| Affiliation: | ZHENG Cheng,WANG Jun,DUAN Hua-jun(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070 China) |
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| Abstract: | Activity terminated PU prepolymer of the molar ratio PAPI:PPG=3:1 with PPG and PAPI was synthesized,which was added into hydroxyl terminated UPR resin.A new type of modified UPR resin was prepared.Theviscosity and mechanical properties of the modified UPR resin was researched with different molecular weight ofPPG.The SEM analysis of cross section of the impact fracture of the modified UPR resin was researched.The results show that when the molecular weight of PPG is 300 and 400,the viscosity of modified UPR... |
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| Keywords: | PAPI PPG molecular weight modified UPR resin PU prepolymer |
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