Results 31 to 40 of about 3,564 (203)
, 1980 A process for preparing dianhydrides that are miscible with hydroxyl prepolymers at moderate temperatures and can cure hydroxyl prepolymers to elastomers at moderate temperatures is disclosed.
Ingham, J. D., Rhein, R. A.
core +1 more source
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT We examine the new energetic plasticizer 3‐(2‐(2‐(2‐azidoethoxy)ethoxy)ethoxy)‐4‐nitro‐1,2,5‐oxadiazole (NFPEG3N3), three reference compounds (BDNPA/F, Bu‐NENA, and DNDA‐57), and a plasticizer‐free control in a fixed HMX/GAP composite. NFPEG3N3 provides the strongest low‐temperature properties, yielding the lowest formulation glass transition ...
Patrick Lieber +2 more
wiley +1 more source
Study of physico-chemical properties of raw materials for solid propellant
Авіаційно-космічна техніка та технологія, 2022 In the study of the physicochemical properties of low molecular weight polybutadiene rubber with functional hydroxyl groups (Hydroxyl Terminated Poly Butadien – HTPB), which is a raw material for solid rocket fuel (SRP), an experimental batch of rubber ...
Viktor Muratov +4 more
doaj +1 more source
Propellants, Explosives, Pyrotechnics, EarlyView.This work investigates the interaction of two isocyanurate‐based bonding agents with ammonium dinitramide: triallyl isocyanurate and 1,3,5‐tris(2‐hydroxyethyl) isocyanurate, which contain alkene and hydroxyl functional groups in their side chains, respectively.
Jessica O. Silva +5 more
wiley +1 more source
A study of solid ramjet fuel containing boron–magnesium mixtures
Propulsion and Power Research, 2017 Solid fuel ramjets (SFRJ) are known for their operational simplicity and high specific impulse. The performance of the SFRJ propulsion system is directly tied to the energy density and combustion behavior of the fuel.
EricT. Sandall +4 more
doaj +1 more source
Olefin Polymerizations Oriented by Rational Designs of Group‐13 Compounds
The Chemical Record, EarlyView.In coordination olefin polymerization chemistry, boron and aluminum compounds play important roles in both catalyst components and monomers. This personal account introduces our recent progress on the development of catalyst systems featured by the design of group‐13 counteranions, as well as the application of boronic acid‐crosslinked polyolefins to ...
Ryo Tanaka, Yu Zou
wiley +1 more source
Journal of Aerospace Technology and Management, 2012 The combustion simulation of ammonium perchlorate was carried out with the software Chemkin, in two steps: the burning behavior of pure ammonium perchlorate and the one of formulated ammonium perchlorate with hydroxyl terminated polybutadiene binder.
Rene Francisco Boschi Gonçalves +3 more
doaj
Modelling , of Polyurethanes Based on Hydroxyl- Terminated Polybutadiene
Defence Science Journal, 1998 Forty formulations based on four different grades ofhydroxyl-terminated polybutadiene, HTPB(hydroxyl value 20- 40 mg KOHlg) at r = [NCO] / [OH] values in the range 0.7 -1.0 with varyingamounts of trimethylol propane and butane diol and containing 86 per cent solid loading wereconsidered to test the applicability of a.-model of Marsh, et al.
Manohar Singh +3 more
openaire +1 more source
Recent advances of non‐invasive sensors for smart wearable respiratory monitoring
VIEW, EarlyView.Respiration contains rich physiological and pathological information, making it one of the most fundamental and continuous vital signs. Respiration monitoring is a non‐invasive and simple, but incredibly powerful, tool for assessing health, managing disease, and tracking fitness.
Jianhui Chen +8 more
wiley +1 more source
Experimental and simulative thermal stability study of HTPE solid propellants in different scales
Case Studies in Thermal Engineering, 2021 The hydroxyl-terminated polyether (HTPE) solid propellants are widely recognized as promising alternatives for hydroxyl-terminated polybutadiene (HTPB) propellants due to their compliance with insensitive munition characteristics of composite solid ...
Xu Wang +7 more
doaj +1 more source