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| 扩链剂对HTPB/IPDI聚氨酯反应流变性和微观结构的影响 | |
| 引用本文： | 陈晓东,周南桥,张海,陈荣盛.扩链剂对HTPB/IPDI聚氨酯反应流变性和微观结构的影响[J].固体火箭技术,2009,32(4). |
| 作者姓名： | 陈晓东 周南桥 张海 陈荣盛 |
| 作者单位： | 1. 华南理工大学聚合物新型成型装备国家工程研究中心,聚合物成型加工工程教育部重点实验室,广州,510640;华南理工大学华工百川科技股份有限公司,广州,510640 2. 华南理工大学聚合物新型成型装备国家工程研究中心,聚合物成型加工工程教育部重点实验室,广州,510640 3. 华南理工大学华工百川科技股份有限公司,广州,510640 |
| 摘 要： | 借鉴橡胶硫化反应的测定方法,采用无转子硫化试验机对不同扩链剂HTPB/IPDI系聚氨酯的扩链反应过程进行了流变学分析,利用AFM考察了材料的微观结构.结果表明,不同反应活性的扩链剂导致了HTPB/IPDI系聚氨酯反应流变性的极大差异,1,4-丁二醇扩链反应t100为13 046 s,3,3'-二乙基-4,4'-二苯基甲烷二胺需要3 958 s反应完全,脂肪族二胺D-230凝胶非常快,仅758 s完全固化.提出聚氨酯软/硬段的热力学不相容性、反应流变性及链段的运动能力是决定聚氨酯微观结构的3个因素的观点,并通过3种聚氨酯不同微观结构形成因素的分析验证了该观点的正确性. |
| 关 键 词： | 扩链剂 HTPB/IPDI系聚氨酯 反应流变性 微观结构 |
Effect of chain extenders on reacting rheology and microstructure of HTPB/IPDI polyurethanes |
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| CHEN Xiao-dong,ZHOU Nan-qiao,ZHANG Hai,CHEN Rong-sheng.Effect of chain extenders on reacting rheology and microstructure of HTPB/IPDI polyurethanes[J].Journal of Solid Rocket Technology,2009,32(4). | |
| Authors: | CHEN Xiao-dong ZHOU Nan-qiao ZHANG Hai CHEN Rong-sheng |
| Institution: | 1.National Engineering Research Center of Novel Equipment for Polymer Processing;the Key Laboratory of PolymerProcessing Engineering Ministry of Education of South China University of Technology;Guangzhou 510640;China;2.Guangzhou SCUT Bestry Technology Joint-stock Co.Ltd.;China |
| Abstract: | The chain-extending reactions of HTPB/IPDI based polyurethanes with various chain-extenders were rheologically analyzed by using a moving die rheometer according to the determination method of rubber vulcanization process.And the microstructure of these materials was investigated by AFM.The result shows that reacting rheological properties of HTPB/IPDI change with variation of the chain-extender.The t100 indices of HTPB/IPDI/BDO,HTPB/IPDI/MOEA and HTPB/IPDI/D-230 are 13 046 s,3 958 s and 758 s respectively.... |
| Keywords: | chain-extender HTPB/IPDI based polyurethane reacting rheological properties microstructure |
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