| 超支化聚氨酯对以PET为基聚氨酯胶片性能的影响 |
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| 引用本文： | 吴彬,柴春鹏,夏敏,罗运军.超支化聚氨酯对以PET为基聚氨酯胶片性能的影响[J].火炸药学报,2009,32(6):11-14,19. |
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| 作者姓名： | 吴彬 柴春鹏 夏敏 罗运军 |
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| 作者单位： | 北京理工大学材料学院,北京,100081 |
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| 基金项目： | 火炸药行业青年基金项目 |
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| 摘 要： | 为改善环氧乙烷-四氢呋喃共聚醚(PET)固体推进剂黏合剂的力学性能,采用超支化聚氨酯(HBPU)与以PET为基聚氨酯(PU)相形成半互穿网络,并测试了PET胶片的力学性能.结果表明,超支化聚氨酯可以明显提高PET胶片的力学性能,超支化聚氨酯改性胶片的延伸率最大达650.14%,是相同R值时空白PET胶片的2.09倍.当R值为1.5时,超支化聚氨酯改性胶片的拉伸强度有显著增加,可以达到1.64 MPa,是空白胶片的2.23倍.超支化聚氨酯对PET胶片起到了很好的增强增韧作用.
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| 关 键 词： | 材料科学 固体推进剂 胶片 超支化聚氨酯 力学性能 |
Effect of Hyperbranched Polyurethane on the Properties of PET-based Polyurethane Films |
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| WU Bin,CHAI Chun-peng,XIA Min,LUO Yun-jun.Effect of Hyperbranched Polyurethane on the Properties of PET-based Polyurethane Films[J].Chinese Journal of Explosives & Propellants,2009,32(6):11-14,19. |
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| Authors: | WU Bin CHAI Chun-peng XIA Min LUO Yun-jun |
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| Affiliation: | WU Bin,CHAI Chun-peng,XIA Min,LUO Yun-jun(School of Material Science , Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | In order to improve the mechanical properties of the adhesives in PET-based solid propellant,the hyperbranched polyurethane was used as a phase to the formation of semi-IPN with PET-based polyurethane(PU).The results showed that the addition of hyperbranched polyurethane can significantly improve the mechanical properties of PET film,with the maximum elongation of 650.14% which is 2.09 times of the blank PET film under the same case of R value.The tensile strength of the hyperbranched polyurethane modified ... |
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| Keywords: | PET material science solid propellant PET film hyperbranched polyurethane mechanical property |
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