Results 11 to 20 of about 4,593 (217)

Solid propellants: AP/HTPB composite propellants

Arabian Journal of Chemistry, 2019
AbstractIn this article we mainly discuss about AP/HTPB composite solid propellants. Classification, components, properties, burning rate and ignition behavior of propellants are mentioned here. Combustion of AP monopropellant, HTPB and AP/HTPB is discussed in detail.
Pragnesh Dave, Shalini Chaturvedi
exaly   +2 more sources

Structural response analysis of a solid rocket motor with HTPB propellant grain under vertical storage condition

Xibei Gongye Daxue Xuebao, 2022
Aiming at the structural response characteristics of solid rocket motor (SRM) under vertical storage conditions, the creep tests of HTPB propellant under different stress levels were carried out, and the creep constitutive model of the propellant was ...
CHEN Ke, REN Quanbin, CHENG Jiming, WANG Jianru, LEI Jiahao   +4 more
doaj   +2 more sources

Combustion and mechanical properties enhancement strategy based on stearic acid surface activated boron powders [PDF]

Scientific Reports
Boric acid and other impurities on the surface of boron (B) particles can interact with hydroxyl-terminated polybutadiene (HTPB), weakening the mechanical properties and energy release efficiency of boron-based solid rocket propellants.
Jiaxin Lu, Chong Chen, Bobo Zhang, Kang Niu, Fei Xiao, Taixin Liang   +5 more
doaj   +2 more sources

Synthesis of propellant grade HHTPB by hydrogenation of HTPB using Pd-activated charcoal as catalyst

FirePhysChem
To derive more performance from the conventional composite propellant based on hydroxyl-terminated polybutadiene (HTPB) and ammonium perchlorate (AP), it is envisaged to hydrogenate HTPB, which increases the H/C (hydrogen to carbon ratio) of the base ...
Prasad Chdv, Abhijit P Deshpande, R Vinu   +2 more
exaly   +3 more sources

Fabrication of Hydroxy-Terminated Polybutadiene with Piezoelectric Property by Functionalized Branch Chain Modification

Molecules, 2023
Hydroxyl-terminated polybutadiene (HTPB)-based piezoelectric polymer (m-HTPB) is prepared for the first time by functionalized branch chain modification strategy.
Bo Yuan, Guang Wang, Wenxue Tian, Li Zhou, Chunxiang Li   +4 more
doaj   +1 more source

Study on the preparation and performance comparison of side-chain hydroxyl-terminated polybutadiene derivatives with narrowly molecular weight distribution used for polyurethane

Polymer Testing, 2021
Hydroxy-terminated oligomers with narrow molecular weight distribution using as soft segment of polyurethane can significantly increase the modulus, tensile strength, and elongation at break of the polyurethane.
Lingxiao Ma, Xiuzhong Zhu, Wanbin Zhang, Haitao Zhang, Jianyong Wang, Jianbo Qu   +5 more
doaj   +1 more source

Research progress in preparation technology of hydroxyl-terminated butadiene liquid rubber

Hecheng xiangjiao gongye, 2023
The performance characteristics and application fields of hydroxy-terminated polybuta-diene (HTPB) liquid rubber were summarized, the preparation methods and characteristics of HTPB were reviewed with 32 references, and various me-thods were summarized ...
LIU Sheng-nan1,2, AI Chun-jin1,2, ZHANG Ding-jun1,2, LI Dong1,2
doaj   +1 more source

Combustion Characteristics of HTPB-Based Hybrid Rocket Fuels: Using Nickel Oxide as the Polymer Matrix Pyrolysis Catalyst

Aerospace, 2023
The slow regression rate induced by the high pyrolysis difficulty has limited the application and development of hydroxyl-terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion.
Hongsheng Yu, Xiaodong Yu, Hongwei Gao, Luigi T. DeLuca, Wei Zhang, Ruiqi Shen   +5 more
doaj   +1 more source

مروری کوتاه بر اثر ریزساختار پلی‌بوتادی ان خاتمه‌یافته با هیدروکسیل (HTPB) بر عمرکاربری سامانه پیونده برپایه‌ آن [PDF]

Baspārish, 2020
دوغاب سامانه پیونده برپایه پلی‌بوتادی‌ان خاتمه‌یافته با هیدروکسیل (HTPB) باید در پایان مرحله اختلاط، گرانروی مناسبی داشته باشد تا ریخته‌گری به‌آسانی انجام شود.
عباس کبریت‌چی, ابوالفضل دیلمی   +1 more
doaj   +1 more source

Mitochondrial apoptosis and FAK signaling disruption by a novel histone deacetylase inhibitor, HTPB, in antitumor and antimetastatic mouse models. [PDF]

PLoS ONE, 2012
BACKGROUND: Compound targeting histone deacetylase (HDAC) represents a new era in molecular cancer therapeutics. However, effective HDAC inhibitors for the treatment of solid tumors remain to be developed. METHODOLOGY/PRINCIPAL FINDINGS: Here, we propose
Jiunn-Min Shieh, Tzu-Tang Wei, Yen-An Tang, Sin-Ming Huang, Wei-Ling Wen, Mei-Yu Chen, Hung-Chi Cheng, Santosh B Salunke, Ching-Shih Chen, Pinpin Lin, Chien-Tien Chen, Yi-Ching Wang   +11 more
doaj   +1 more source