Results 11 to 20 of about 1,563 (196)

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, B.K. Kanungo, T.K. Bansal, M. Rama Rao   +3 more
openaire   +3 more sources

Fatigue failure of prefabricated crack HTPB(hydroxyl-terminated polybutadiene) propellant under strain control [PDF]

Scientific Reports
In an effort to elucidate the fatigue behavior of hydroxyl-terminated polybutadiene (HTPB) propellant with prefabricated cracks under strain-controlled conditions, a comprehensive experimental study was conducted employing an MTS fatigue testing machine.
Genfeng Li, Bo Gao, Hao Hu, Ruifu Cui, Jiwei Feng, Jian He   +5 more
doaj   +2 more sources

Utilization of steric hindrance of alkyl lithium-based initiator to synthesize high 1,4 unit-containing hydroxyl- terminated polybutadiene [PDF]

Royal Society Open Science, 2018
A novel alkyl lithium-based initiator with relatively large steric hindrance, tert-butyldimethylsiloxydimethylpropyl lithium (TBDMSODPrLi), was designed and synthesized.
Xin Min, Xiaodong Fan, Jie Liu
doaj   +2 more sources

Effect of hard segment content on the phase separation and properties of hydroxyl-terminated polybutadiene thermoplastic polyurethane

Polymer Testing
Thermoplastic polyurethane (TPU) possesses a distinctive microphase separation structure resulting from the thermodynamic incompatibility between its soft and hard segments.
Boxin Liu, Zhihao Niu, Zhanglei Wang, Yimin Wang, Hua Zou, Xiuying Zhao, Shikai Hu   +6 more
doaj   +2 more sources

An Overview of the Technological Progress in Propellants Using Hydroxyl-Terminated Polybutadiene as Binder During 2002–2012

Journal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i3.242 The purpose of this article is to present a study on the technological development of propellants, which are used in solid and hybrid rocket motor, that have been employing hydroxyl-terminated polybutadiene (HTPB)
Gilson da Silva, Simone Carvalho Rufino, Koshun Iha   +2 more
doaj   +2 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   +2 more sources

Pentaerythritol and Glycerol Ester-Based Rosin-Modified Hydroxyl-Terminated Polybutadiene (HTPB) [PDF]

ACS Polymers Au
Frank Lee, Aran Guner, Ken Lewtas, Tony McNally   +3 more
doaj   +2 more sources

Novel Glycidyl Carbamate Functional Epoxy Resin Using Hydroxyl-Terminated Polybutadiene. [PDF]

Polymers (Basel)
Herein, a novel glycidyl carbamate functional epoxy resin (GCE) is synthesized by the additional reaction of the isocyanate group of tolylene diisocyanate (TDI) with the hydroxyl group of hydroxyl-terminated polybutadiene (HTPB) and glycidol.
Kim HC, Moon SJ, Kwon YR, Moon SK, Kim DH, Kim DH.   +5 more
europepmc   +2 more sources

Hexogen Coating Kinetics with Polyurethane-Based Hydroxyl-Terminated Polybutadiene (HTPB) Using Infrared Spectroscopy. [PDF]

Polymers (Basel), 2022
The kinetics of hexogen coating with polyurethane-based hydroxyl-terminated polybutadiene (HTPB) using infrared spectrometry was investigated. The kinetics model was evaluated through reaction steps: (1) hydroxyl and isocyanate to produce urethane, (2 ...
Wibowo HB, Sitompul HRD, Budi RS, Hartaya K, Abdillah LH, Ardianingsih R, Wibowo RSM.   +6 more
europepmc   +2 more sources

Experimental and simulation research on microscopic damage of HTPB propellant under tension-shear loading

AIP Advances, 2022
In order to study the influence of loading conditions on propellant mesoscopic failure morphology, scanning electron microscopy was carried out to observe the morphology of the failure section of a hydroxyl-terminated polybutadiene propellant under ...
Jia-yuan Cui, Hong-fu Qiang, Jia-xiang Wang   +2 more
doaj   +1 more source