| HTPB/TDI/MCDEA型聚氨酯弹性体的研制 |
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| 引用本文： | 马铁宁,刘喜军,陶海涛,张金翠.HTPB/TDI/MCDEA型聚氨酯弹性体的研制[J].齐齐哈尔轻工业学院学报,2010(6):37-40. |
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| 作者姓名： | 马铁宁 刘喜军 陶海涛 张金翠 |
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| 作者单位： | [1]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006 [2]黑龙江省普通高等学校聚合物改性与大分子分离重点实验室,黑龙江齐齐哈尔161006 |
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| 摘 要： | 以端羟基聚丁二烯（HTPB）、甲苯二异氰酸酯（TDI）为主要原料合成预聚体,以4,4’-亚甲基双（3-氯-2,6-二乙基苯胺）为扩链剂,通过浇铸成型制备聚氨酯弹性体。实验采用电子万能试验机和邵氏A硬度计对聚氨酯弹性体的力学性能进行了测试,结果表明：当预聚体NCO含量为4.13%、NH2/NCO摩尔比为0.90时,聚氨酯弹性体的综合力学性能最佳;后硫化时间、环境湿度对聚氨酯弹性体的力学性能均有一定影响,使用新型扩链剂4,4’-亚甲基双（3-氯-2,6-二乙基苯胺）制得的聚氨酯弹性体的力学性能普遍好于扩链剂MOCA。
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| 关 键 词： | 端羟基聚丁二烯 4 4’-亚甲基双（3-氯-2 6-二乙基苯胺） 聚氨酯弹性体 力学性能 |
Preparation of polyurethane elastomer based HTPB/TDI/MCDEA |
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| Authors: | MA Tie-ning LIU Xi-jun TAO Hai-tao ZHANG Jin-cui |
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| Affiliation: | 1.College of Materials Science and Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China;2.Key Laboratory of Polymer Modification and Macromolecules Separation,College of Heilongjiang Province,Heilongjiang Qiqihar 161006,China) |
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| Abstract: | In this paper,the polyurethane prepolymer was synthesized by using hydroxyl-terminated polybutadiene（HTPB） and toluene dissocyanate（TDI） as the main raw materials,and the polyurethane elastomer was prepared via casting method by using 4,4’-methylenebis（3-choloro-2,6-diethylaniline）（MCDEA） as chain extender.The mechanical properties of polyurethane elastomer were measured by electronic universal testing machine and shore A hardness meter.The results stated that the comprehensive mechanical properties of polyurethane elastomer were best when the content of NCO was 4.13% and molar ratio of NH2/NCO was 0.90.The post-curing time and environment humidity affected the mechanical properties of polyurethane elastomer in certain extent,too.The mechanical properties of polyurethane elastomer prepared by using MCDEA as chain extender were all better than chain extender MOCA. |
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| Keywords: | HTPB MCDEA polyurethane elastomer mechanical properties |
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