Results 61 to 70 of about 3,564 (203)

Thermo‐Mechanical Evaluation of Novel Composite Propellant Formulations Based on Styrene‐Ethylene/Butylene‐Styrene Block Copolymer

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 11-12, Page 117-126, December 2025.
ABSTRACT Two novel composite propellant formulations have previously been produced from a binder consisting of the thermoplastic elastomer styrene‐ethylene/butylene‐styrene (SEBS) and a solid filler, either ammonium perchlorate (AP) or 1,3,5‐trinitro‐1,3,5‐triazinane (RDX).
Peter J. Wilkinson, Guillaume Kister, Philip P. Gill   +2 more
wiley   +1 more source

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   +1 more source

Packaging material and flexible medical tubing containing thermally exfoliated graphite oxide [PDF]

, 2011
A packaging material or flexible medical tubing containing a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m.sup.2/g to 2600 m.sup.2 ...
Aksay, Ilhan A., Prud'homme, Robert K.
core   +1 more source

Sustainable Synthesis of Polyurethane Using Hydroxyl‐Terminated Polybutadiene (HTPB) Derived From the Degradation of Butadiene Rubber with Fatty Alcohol

Macromolecular Materials and Engineering, Volume 310, Issue 11, November 2025.
This study proposes a synthesis route for polyurethanes (PUs) derived from bio‐based polyols. The polyols were obtained through metathesis depolymerization of butadiene rubber using fatty alcohol (a castor oil derivative) as a chain transfer agent to produce hydroxyl‐terminated polybutadiene (HTPB).
Manuel Burelo, Cecilia D. Treviño‐Quintanilla, Jonathan E. De la Peña‐González, Edgar A. Franco‐Urquiza, Enrique Martínez‐Franco, Gabriel Luna‐Bárcenas, Diego A. Bravo‐Alfaro, Alice Y. Yau, Thomas Stringer   +8 more
wiley   +1 more source

Ultrasonically Accelerated Nitration of Hydroxyl-Terminated Polybutadiene: Process Efficiency and Product Characterization

Eng
Hydroxyl-terminated polybutadiene (HTPB) is widely studied and the most used prepolymer for the binder system of composite solid propellants. A suitable functionalization of HTPB with energetic groups greatly improves the performance of the propellant ...
Ventsislav Bakov, Spaska Yaneva, Nadezhda Rangelova, Milko Berner, Damyan Ganchev, Nikolai Georgiev   +5 more
doaj   +1 more source

Acúmulo de cargas elétricas em propelente sólido compósito com matriz de polibutadieno líquido hidroxilado

Química Nova, 2014
Composite solid propellants prepared with HTPB prepolymer - Hydroxyl Terminated Polybutadiene, AP - Ammonium Perchlorate as oxidizer and aluminum particles as an additive metal, have characteristics of high electrical resistivity.
Silvio Manea, Gabriela Knippelberg B. Manea, Koshun Iha, José A. F. F. Rocco   +3 more
doaj   +1 more source

Conductive ink containing thermally exfoliated graphite oxide and method a conductive circuit using the same [PDF]

, 2011
A conductive ink containing a conductive polymer, wherein the conductive polymer contains at least one polymer and a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 sq m/g to 2600 sq ...
Aksay, Ilhan A., Prud'Homme, Robert K.
core   +1 more source

Degradation strategies for structural characterization of insoluble synthetic polymers by mass spectrometry

Mass Spectrometry Reviews, Volume 44, Issue 6, Page 989-1012, November/December 2025.
Abstract With the advent of soft ionization techniques such as electrospray (ESI) and matrix‐assisted laser desorption/ionization (MALDI) to produce intact gas‐phase ions from nonvolatile macromolecules, mass spectrometry has become an essential technique in the field of polymeric materials.
Thierry N. J. Fouquet, Robert B. Cody, Laurence Charles   +2 more
wiley   +1 more source

Síntese de poliuretanos modificados por óleo de mamona empregados em materiais energéticos

Química Nova, 2013
The aim of this work was to synthesize a polyurethane polymer matrix using castor oil as a polymer chain modifier, whose characteristics can be adjusted for use as a binder in the manufacture of energetic materials such as propellant and pyrotechnics for
Roberta Jachura Rocha, José Eduardo Salgueiro Lima, Susane Ribeiro Gomes, Koshun Iha, José Atílio Fritz Fidel Rocco   +4 more
doaj   +1 more source

Development of low viscosity alkane-based urethane for connector potting applications [PDF]

Two series of saturated hydrocarbon-based urethanes were prepared with isophorone diisocyanate and one series with methyl bis (4-cyclohexyl isocyanate).
Morris, D. E.
core   +1 more source