Results 111 to 120 of about 11,287 (255)

Burning Characteristics of Ammonium-Nitrate-Based Composite Propellants with a Hydroxyl-Terminated Polybutadiene/Polytetrahydrofuran Blend Binder

International Journal of Aerospace Engineering, 2012
Ammonium-nitrate-(AN-) based composite propellants prepared with a hydroxyl-terminated polybutadiene (HTPB)/polytetrahydrofuran (PTHF) blend binder have unique thermal decomposition characteristics.
Makoto Kohga, Tomoki Naya, Kayoko Okamoto   +2 more
doaj   +1 more source

Study on the low shrinkage rate UV adhesiveof dual curing mechanism [PDF]

, 2015
紫外光固化胶黏剂是一种新兴的胶黏剂产品，因其具有高效、环保、经济 等特点，被广泛应用于多种工业领域。但目前国内对紫外光固化胶黏剂研究较 少，所研制的紫外光固化胶黏剂主要为自由基固化型，固化收缩率大多在5%以 上，而用于触摸屏、大屏幕彩电、智能手机屏幕等行业的紫外光胶黏剂要求固 化收缩率≤3%。本文研究内容旨在利用双重固化机理降低紫外光固化胶黏剂的 固化收缩率，制备固化收缩率小于3%的紫外光固化胶黏剂。 本文利用端羟基聚丁二烯、过氧化氢和乙酸为原料，成功制备了兼具不饱 和双键和环氧基的环氧聚丁二烯 ...
陆嘉
core  

Catalytic effects of transition metal oxides on HTPB-based fuel polymer matrices

FirePhysChem
Low regression rate due to difficult pyrolysis is a major challenge in the practical application of terminated hydroxyl‑terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion.
Hongwei Gao, Hongsheng Yu, Yue Tang, Xiaodong Yu, Wei Zhang, Luigi T. DeLuca, Ruiqi Shen   +6 more
doaj   +1 more source

Design, synthesis and curing mechanism of two novel photothermal dual-curing adhesives for propellants and explosives

FirePhysChem
Photothermal dual-curing adhesive is not only required to realize the basic curing function, but also has the characteristics of rapid setting and strong curing, which possesses a vital role in the molding speed, stability and structure integrity for 3D ...
Bojun Tan, Hongchang Mo, Jing Zhang, Yujia Wen, Binghui Duan, Xiaozhe Yang, Xianming Lu, Ning Liu   +7 more
doaj   +1 more source

The regulation of ferrocene-based catalysts on heat transfer in high-pressure combustion of ammonium perchlorate/hydroxyl-terminated polybutadiene/aluminum composite propellants

Defence Technology, 2023
Jinchao Han, Songqi Hu, Lin-lin Liu
semanticscholar   +1 more source

Performance evaluation of commercial copper chromites as burning rate catalyst for solid propellants [PDF]

, 2010
Copper chromites are well known as burning rate catalysts for the combustion of composite solid propellants, used as a source of energy for rocket propulsion.
Eunice Aparecida Campos, Koshun Iha, Luis Cláudio Rezende, Milton Faria Diniz, Rita de Cássia L. Dutra, Wilma Massae Dio Nawa   +5 more
core  

Cationic vinyl pyridine copolymers and products thereof [PDF]

, 1978
Quaternized, cross-linked, insoluble copolymers of unsubstituted and substituted vinyl pyridines and a dihalo organic compound are spontaneously formed at ambient temperature on mixing the two monomers in bulk, in solution or in suspension. The amount of
Rembaum, Alan
core   +1 more source

Effect of TPB on curing reaction of HTPB-TDI

Journal of Measurement Science and Instrumentation, 2014
Catalysis effect of triphenyl bismuth（TPB） on kinetics of hydroxyl terminated polybutadiene-toluene diisocyanate（HTPB-TDI） curing reaction was studied by non-isothermal differential scanning calorimetry（DSC）.
OU Ya-peng, CHANG Shuang-jun, ZHANG Bai-lei   +2 more
doaj  

A feasibility study for Scout polar launches from NASA Wallops Flight Center [PDF]

The feasibility of launching the Scout vehicle into a polar orbit from Wallops Flight Center is discussed. The impact of proposed flights on vehicle hardware and range safety are defined.
Myler, T. R.
core   +1 more source

Associative Polymers and Related Compositions, Methods and Systems [PDF]

Described herein are associative polymers capable of controlling one or more physical and/or chemical properties of non-polar compositions and related compositions, methods and ...
Jones, Simon, Kornfield, Julia A., Sarohia, Virendra, Wei, Ming-Hsin   +3 more
core   +1 more source