Results 21 to 30 of about 1,563 (196)

Effect of hyperbranched polyesters on HTPB polyurethane curing kinetic [PDF]

Materials Research, 2013
Effects of hyperbranched polyesters on kinetics of the reaction between hydroxyl-terminated polybutadiene (HTPB) and isophorone diisocyanate (IPDI) were investigated.
Xuejing Song, Luo Yunjun
doaj   +1 more source

Self-Healing, Recyclable Syndiotactic 1,2-Polybutadiene-Based Thermadapt Shape Memory Polymers with Cold-Programmed Shape Memory Effect

, 2023
Shape memory polymers (SMPs), as a type of smart material, play a significant role in practical applications. Unlike the hot programming of SMPs, the cold programming of SMPs does not require preheating.
Tengfei Lin (1706983), Chunlin Zhao (1960900), Cong Lin (1510291), Jinyun Wang (1800799), Min Gao (87060), Zhou Li (140418), Xiao Wu (158273), Biao Xia (2864588)   +7 more
core   +4 more sources

Influence of Process Aids on Solid-Liquid Interfacial Properties of Three-Component Hydroxyl-Terminated Polybutadiene Propellants. [PDF]

Polymers (Basel)
The effect of the process aid “OPS” on the rheological properties of hydroxyl-terminated polybutadiene propellant was investigated by formulating different components of high-solid-content slurry, and the change in slurry viscosity with shear rate ...
Zhang X, Deng Z, Xu W, Jiang L, Xu H, Tang Q, Zheng Q, Li J.   +7 more
europepmc   +2 more sources

Effect of hydroxyl terminated polybutadiene number-averaged molecular weight on chemorheological behavior of polyurethane networking [PDF]

Polyolefins Journal, 2023
The time available for proper casting of the polyurethane (PU) system after isocyanate addition (called pot life) affects the macrodiol microstructure. In this research, the effect of molecular weight ( Mn ) of hydroxyl terminated polybutadiene (HTPB) as
Abolfazl Deylami, Abbas Kebritchi
doaj   +1 more source

Fully Atomistic Molecular Dynamics Simulations of Hydroxyl-Terminated Polybutadiene with Insights into Hydroxyl Aggregation

, 2020
A fully atomistic model designed to reproduce the molecular weight and average functionality typical of commercial hydroxyl-terminated polybutadiene (HTPB) formulations is presented.
Garrett M. Tow (8617587), Edward J. Maginn (1268100)   +1 more
core   +2 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

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