Effcet of Binder Structure on Mechanical Behaviors of Films and Propellant

被引：0

作者：

Li W. ^{[1
]}

Wang Y. ^{[1
]}

Wu P. ^{[1
]}

Tang Q. ^{[1
]}

Yang P.-G. ^{[1
]}

Liu X. ^{[1
]}

Wang X.-Y. ^{[1
]}

Yin X.-M. ^{[1
]}

机构：

[1] Hubei Institute of Aerospace Chemical Technology, Xiangyang

来源：

Huozhayao Xuebao/Chinese Journal of Explosives and Propellants | 2021年 / 44卷 / 02期

关键词：

Binder; HTCE; Mechanics of materials; PCL; PTHF; Solid propellant; Uniaxial tensile;

D O I：

10.14077/j.issn.1007-7812.202007002

中图分类号：

学科分类号：

摘要：

In order to clarify the effect of binder structures on the mechanical behaviors of propellants, the mechanical behaviors of several types of polyester polyether adhesive structures were investigated by dynamic mechanical analyzer and uniaxial tensile testing. The results indicate that PTHF film has higher elongation ratio, while HTCE and PCL films have higher strength in non-plasticized polymer. The storage modulus (E') and loss modulus (E") of PCL, HTCE and PTHF decrease successively, their Tg are -43.94, -61.99 and -66.98℃, respectively. The plasticizer reduces the internal friction resistance during the thawing process of chain segment and the Tg of PTHF(-67.66℃), PCL (-72.27℃) and HTCE (-77.10℃) films were reduced by addtion of plasticizers. The E' and E" of PCL were the highest among all, the E' of PTHF was higher than that of HTCE, and the mechanical properties of HTCE and PCL films was better than that of PTHF. The Tg of PTHF, PCL and HTCE propellants was -55.27, -56.16 and -57.91℃, respectively, the E' of PTHF was the highest, but the impact resistance and toughness were the worst at low temperature. The E' and E" of HTCE were the lowest, that have better elasticity and low consumption. The E', E" and loss tangent peak area of PCL are higher so that the rigidity and impact toughness are better in a wide range of temperature. © 2021, Editorial Board of Journal of Explosives & Propellants. All right reserved.

引用

页码：240 / 244

页数：4

共 15 条

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