A study on the effect of four thermoplastic elastomers on the properties of double-base propellants

Xiaobin Zou; Wenguo Zhang; Yongjun Gu; Xiuchong Fu; Zehao Zhang; Zhen Ge; Yunjun Luo

doi:10.1039/d0ra08370d

A study on the effect of four thermoplastic elastomers on the properties of double-base propellants

RSC Adv. 2020 Nov 25;10(70):42883-42889. doi: 10.1039/d0ra08370d. eCollection 2020 Nov 23.

Authors

Xiaobin Zou¹, Wenguo Zhang¹, Yongjun Gu², Xiuchong Fu², Zehao Zhang¹, Zhen Ge¹, Yunjun Luo¹

Affiliations

¹ School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China gzandlsy@bit.edu.cn yjluo@bit.edu.cn +86-10-68911608 +86-10-68911608.
² Shanxi North Xing'an Chemical Industry Co., Ltd. Shanxi 030008 China.

Abstract

To improve the low-temperature mechanical properties of double-base propellants, glycidyl azide polymer-energetic thermoplastic elastomer (GAP-ETPE), polyether block copolyimide-thermoplastic elastomer (PEBA-TPE), 1,2-polybutadiene thermoplastic elastomer (PB-TPE), and ethylene oxide-tetrahydrofuran copolyester-thermoplastic elastomer (PET-TPE) were used to modify them. The effects of these four thermoplastic elastomers (TPEs) on the energy properties of double-base propellants were studied via theoretical calculations. The mechanical properties of double-base propellants at high, low, and room temperature were compared, and their thermal properties were analyzed. It was found that GAP-ETPE had a significant effect on improving the low-temperature mechanical properties of double-base propellants, with the maximum tensile strength and maximum elongation at a low temperature for the double-base propellant reaching 43.30 MPa and 6.24%, respectively.