Improving bond strength at propellant-liner interfaces

NCUIR > Engineering College > Departmant of Mechanical Engineering > journal & Dissertation > Item 987654321/108919

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/108919

Title:	Improving bond strength at propellant-liner interfaces
Authors:	李雄;Liao, Chih Yeh;Lee, Shyong
Contributors:	工學院機械工程學系
Keywords:	Ballistics;Bonding strength;Failure;Interfaces;Liners;Polybutadienes;Propellant grains;Propellants;Rockets;Solid propellant rocket engines;Tensile strength;Toluene;Toluene diisocyanates
Date:	2015-01-01
Issue Date:	2026-04-23 15:14:55 (UTC+8)
Publisher:	American Institute of Aeronautics and Astronautics Inc. (AIAA);Reston: American Institute of Aeronautics and Astronautics
Abstract:	摘要： In solid rocket motors, a strong bond at the propellant–liner interface ensures that the propellant functions as designed. If the interface degums, the propellant burn surface area will change and the performance of internal ballistics will be adversely affected. In this study, two cases of motor failure are considered to investigate methods for improving the bond strength between the propellant grain and the liner interface, with the aim of achieving a tensile strength exceeding the 8 kg/cm2 requirement. Hydroxyl-terminated polybutadiene was used as the liner material. This hydroxyl-terminated-polybutadiene-based material was conditioned and processed under the conditions of 5–20 torr pressure and 60–70°C temperature. Further, toluene diisocyanate was considered as the hardener and its contents were increased in the liner by 0 (i.e., original content), 2, 5, 10, and 15% to obtain diisocyanate NCO/OH equivalence ratios of 1.035, 1.057, 1.087, 1.144, and 1.187, respectively. Thereafter, bond strength tests and analyses were conducted. The tensile strength gradually increased with increasing toluene diisocyanate content in the liner. The bond strength was found to increase after improving the liner, performing hydroxyl-terminated polybutadiene heating and vacuum extraction pretreatments, and increasing the toluene diisocyanate content by 10%. 出版者： Reston: American Institute of Aeronautics and Astronautics 出版日期： 2015-09-01 出處： Journal of propulsion and power, 2015-09, Vol.31 (5), p.1452-1457 版權： Copyright © 2015 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Copies of this paper may be made for personal or internal use, on condition that the copier pay the $10.00 per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923; include the code and $10.00 in correspondence with the CCC. 版權： Copyright © 2015 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Copies of this paper may be made for personal or internal use, on condition that the copier pay the $10.00 per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923; include the code 1533-3876/15 and $10.00 in correspondence with the CCC. 識別號： ISSN: 0748-4658 識別號： EISSN: 1533-3876 識別號： DOI: 10.2514/1.B35700 識別號： CODEN: JPPOEL
Appears in Collections:	[Departmant of Mechanical Engineering ] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	14	View/Open

社群 sharing

Loading...