Results 51 to 60 of about 4,253 (212)
In order to accurately describe the transverse relaxation characteristic and stress relaxation modulus of HTPB coating during pre-strain thermal aging process, a one month thermal aging test was carried out at 70 °C with pre-strain of 0%, 3%, 6% and 9 ...
Yong-qiang Du +3 more
doaj +1 more source
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 +2 more
wiley +1 more source
The Hydroxyl-Terminated Polybutadiene (HTPB) liner in solid rocket motors is a viscoelastic material formed through the polymerization and gelation of HTPB and toluene diisocyanate.
Dawei Wang, Yuxin Xie, Xinyi Gao
doaj +1 more source
The interfacial interaction between the main oxidant filler ammonium perchlorate (AP) and hydroxyl-terminated polybutadiene (HTPB) matrix in AP/HTPB propellants were studied via an all-atom molecular dynamics simulation.
Dong Ge +6 more
doaj +1 more source
Revolving chiral patterns are induced by an ultraviolet light beam in frustrated films of photoactive chiral nematics. The uniformity and regularity of the rotation depend on the ratio of the pattern size to the diameter of the light spot. The rotation is interrupted when this ratio reaches about eight.
Darina Darmoroz +2 more
wiley +1 more source
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 +8 more
wiley +1 more source
This study investigates the mechanical, thermal, and dynamic mechanical properties of an eco‐friendly, green tyre tread compound, focusing on a ternary filler (CB, exfoliated graphite/modified silica) system. These findings establish modified silica as a key enabler in the development of next‐generation green tyres, offering a high‐performance ...
Bijina V +3 more
wiley +1 more source
Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel
Paraffin fuel has been found to have a regression rate that is higher than conventional HTPB (hydroxyl-terminated polybutadiene) fuel and, thus, presents itself as an ideal energy source for a hybrid rocket engine.
Songqi Hu +4 more
doaj +1 more source
A Structural Integrity Perspective for the Assessment of Ageing in Composite Solid Propellants
ABSTRACT Composite solid propellants (CSPs) are critical materials in the defence and aerospace industries, known for their complex mechanical behaviour and susceptibility to ageing. This study explores the application of Principal Component Analysis (PCA) to discriminate the ageing degradation of CSPs based on structural integrity parameters.
Mario Martínez +3 more
wiley +1 more source
Amine‐AlH3 Adducts as Energetic Materials for a New Generation of Solid Fuels
New amine‐AlH₃ adducts offer a more environmentally friendly, high‐energy alternative to conventional rocket propellants, and exhibit ultra‐fast ignition. They can be synthesized by mechanochemical method under hydrogen pressure starting from aluminum metal directly or by wet chemical processes with AlH3.
Xiaoran Liu +4 more
wiley +1 more source

