مقایسه خواص پیشرانه‌های جامد مرکب بر پایه HTPB و NHTPB/HTPB

Qane Gharabagh, Milad; Kebritchi, Abbas; Ashrafi, Mahdi

Volume 13, Issue 3 (9-2018) مواد پرانرژی 2018, 13(3): 153-161 | Back to browse issues page

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Qane Gharabagh M, Kebritchi A, Ashrafi M. مقایسه خواص پیشرانه‌های جامد مرکب بر پایه HTPB و NHTPB/HTPB. مواد پرانرژی 2018; 13 (3) :153-161
URL: http://isaem.ir/article-1-1204-en.html

مقایسه خواص پیشرانه‌های جامد مرکب بر پایه HTPB و NHTPB/HTPB

Milad Qane Gharabagh

, Abbas Kebritchi ^*

, Mahdi Ashrafi

, a.kebritchi@ippi.ac.ir

Abstract: (2970 Views)

Hydroxyl terminated polybutadiene (HTPB) is the most commonly used binder in composite solid propellants. However, due to its non-energetic character, in practice it is just a dead weight; Therefore, replacing HTPB with an energetic polymer is essential. In this research, nitrated hydroxyl terminated polybutadiene resin (NHTPB) with 12.2% nitration rate, in combination with HTPB resin was used as binder. Thus, the HTPB propellant base formulation (HB) was prepared as a reference sample and in terms of physical-mechanical properties, burning rate and sensitivity were compared with two other cured formulations: the propellant formulation with binder ratio of 5% NHTPB to 95% HTPB (NH5) and the other with binder ratio of 10% NHTPB to 90% HTPB (NH 10). The results showed that, with increasing NHTPB to HTPB ratio from 5% to 10%, Young's modulus, burning rate, impact and friction sensitivities were increased in comparison to reference propellant, and the cross-linking density, hardness, and tension were decreased.

Keywords: Composite Solid Propellant, NHTPB Resin, Physical-Mechanical Properties, Burning Rate, Impact and Friction Sensitivity

Full-Text [PDF 472 kb] (380 Downloads)

Type of Study: Research | Subject: سنتز، آناليز، کنترل کيفيت، فرمولاسيون و فرايندهاي توليد مواد پرانرژی (منفجره، پيروتکنيک و پيشرانه)
Published: 2019/09/17