固体火箭技术2017，Vol.40Issue(3)：330-335,6.DOI:10.7673/j.issn.1006⁃2793.2017.03.011
一步法制备BAMO⁃THF型热塑性弹性体及其力学特性
One-step preparation and mechanical properties of thermoplastic elastomer based on BAMO-THF
摘要
Abstract
A series of energetic thermoplastic elastomer ( ETPE) were prepared by one-step melt polyaddition with high content of BAMO-THF. The structure of the ETPE was characterized by Fourier transform infrared spectroscopy ( FT-IR) and wide X-ray diffraction (WXRD). The mechanical properties were investigated by dynamic mechanic analysis (DMA), universal testing ma-chine, and shore durometer. The results reveal that the prepared ETPE based on BAMO-THF have typical features of azido-typed polyether-based polyurethane. Additionally, due to their liner structure, all the samples exhibit strong degree of creep under loading stress and test temperature. Moreover, the increases of chain extender prejudice the elongation and low-temperature mechanical properties significantly. Among all tested samples, the D20 exhibits satisfactory mechanical properties, where the desired soft seg-ment ( BAMO-THF) reaches 93.3% and hard segment decreases to 6.7%, and thereby its tensile strength reaches 3.61 MPa while elongation at break attains 1277% along with glass transition temperature Tg of -23.4 ℃.关键词
BAMO⁃THF/含能热塑性弹性体(ETPE)/含能粘合剂/力学特性Key words
BAMO-THF/energetic thermoplastic elastomer ( ETPE)/energetic binder/mechanical properties分类
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胡义文,菅晓霞,肖乐勤,周伟良..一步法制备BAMO⁃THF型热塑性弹性体及其力学特性[J].固体火箭技术,2017,40(3):330-335,6.基金项目
973项目( 613275030103). （ 613275030103）
