Results 21 to 30 of about 10,094 (259)

Comparative Assessment of Stabilised Polybutadiene Binder under Accelerated Ageing

Journal of Aerospace Technology and Management, 2016
Polybutadiene elastomers are versatile materials, being employed at several applications from rocket propellant binder to adhesives and sealants. The elastomers derived from hydroxyl-terminated polybutadiene are usually stabilised with antioxidants to ...
Luiz Felipe Cannaval Sbegue, Luciene Dias Villar   +1 more
doaj   +3 more sources

Kinetic study of HTPB (Hydroxyl Terminated Polybutadiene) Synthesis Using Infrared Spectroscopy

Indonesian Journal of Chemistry, 2020
A kinetic study of HTPB synthesis by radical polymerization of butadiene with hydrogen peroxide initiator was conducted using infrared spectroscopy. HTPB conversion was determined based on the conjunction termination rate constant, and all polymerization
Heri Budi Wibowo, Widhi Cahya Dharmawan, Ratih Sanggra Murti Wibowo, Adi Yulianto   +3 more
doaj   +1 more source

Nanocompósitos ternários de amido termoplástico e poli(Butadieno maleatado)

Química Nova, 2012
Liquid polybutadiene (PBLH) was modified with maleic anhydride (MA). The material (PBLHM) was characterized and used to prepare hybrid materials by blending with glycerol-plasticized cassava starch (TPS) and an organophilic clay at 5 wt% content ...
Regina F. Ó, Cristina T. Andrade
doaj   +1 more source

A natureza das substâncias de referência na avaliação de massas molares de resinas PBLH por meio de cromatografia de exclusão por tamanho e osmometria de pressão de vapor The nature of standards in the evaluation of molar mass of PBLH resins by means of size exclusion chromatography and vapor pressure osmometry

Química Nova, 1997
The SEC and VPO behaviour of hydroxyl-terminated polybutadiene resins was investigated using toluene as solvent and polybutadiene and polystyrene as standards.
Marta Ferreira Koyama Takahashi, Mauro de Lima, Wagner Luiz Polito   +2 more
doaj   +1 more source

Thermooxidative aging of polydicyclopentadiene in glassy state [PDF]

, 2014
Thermal aging of thin films of unstabilized polydicyclopentadiene (pDCPD) at several temperatures ranging from 120 to 30 C was investigated by means of carbonyl build up by FTIR with ammonia derivatization, double bond titration, mass uptake measurement ...
LE GAC, Pierre Yves, LE GAC, Pierre Yves, RICHAUD, Emmanuel, VERDU, Jacques   +3 more
core   +3 more sources

A Step-by-Step Equivalent Microprediction Method for the Mechanical Properties of Composite Solid Propellants considering Dewetting Damage

International Journal of Aerospace Engineering, 2022
Reliable prediction of the macromechanical properties of composite solid propellants in the microscale can accelerate the development of propellants with high mechanical properties.
Huiru Cui, Xuan Lv, Yurong Xu, Zhiwen Zhong, Zixiang Zhou, Weili Ma   +5 more
doaj   +1 more source

Radiation-induced pyrolysis of solid fuels for ramjet application

Propulsion and Power Research, 2016
A wide variety of hydroxyl-terminated polybutadiene (HTPB) based fuels are experimentally assessed in anaerobic reaction. In this study HTPB pyrolysis is investigated using a CO2 laser as the energy source.
Trevor D. Hedman
doaj   +1 more source

Structure and dielectric properties of electroactive tetraaniline grafted non-polar elastomers [PDF]

, 2020
Intrinsic modification of polybutadiene and block copolymer styrene–butadiene–styrene with the electrically conducting emeraldine salt of tetraaniline (TANI) via a three-step grafting method, is reported in this work.
Ellingford, Christopher, Pengchaicharoen, Atcharaporn, Wan, Chaoying, Wemyss, Alan M.   +3 more
core   +1 more source

Numerical Investigation on the Effect of Ammonium Perchlorate Content and Position on the Combustion Characteristics of an Ammonium Perchlorate/Hydroxyl-Terminated Polybutadiene Propellant

Aerospace, 2023
A gas–solid-coupled sandwich combustion model was established for ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB) composite propellant.
Di Sun, Yongzhou Li, Peijin Liu, Bofeng Chen, Wei Fan   +4 more
semanticscholar   +1 more source

Desenvolvimento de tecnologia de pré-polímeros na síntese de poliuretanos empregados em combustíveis sólidos

Química Nova, 2014
The aim of this work was to synthesize a polyurethane polymer matrix using polyols as a raw material to obtain a binder such as the hydroxyl terminated polybutadiene (HTPB) pre-polymer in energetic material formulation.
Marcelo Clemente, Roberta J. Rocha, Koshun Iha, José A. F. F. Rocco   +3 more
doaj   +1 more source