Results 1 to 10 of about 5,345 (73)

A Review on Role and Characteristics of Polymeric Membrane in Vanadium Redox Flow Battery [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2022
The global problem of air pollution and its consequences, as well as the reduction of fossil fuel reserves, have created the need to use alternative energy sources. Therefore, it is necessary to create and develop the required infrastructure of renewable
Shahram Mehdipour-Ataei   +1 more
doaj   +1 more source

Effect of Silanization Pre - Treatment on Adhesive Force and Early Protective Properties of Water - Based Polyurethane Coating on Surface of Magnesium Alloy [PDF]

open access: yesCailiao Baohu, 2022
The purpose of this work was to reveal the effect of silanization pre - treatment on the adhesive force and the early protective properties of the whole coating system before coating water - based polyurethane (PU) varnish on surface of magnesium alloy ...
ZHOU Yong, SU Li - hui - zi, CHEN Jun, LIU Qian, XU Man
doaj   +1 more source

The Effect of Process Parameters on the Synthesis of Thermoplastic Polyurethane Elastomer Through Reactive Melt Blending [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2020
Hypothesis: Thermoplastic polyurethane elastomers are generally synthesized by one of the methods of one-shot, pre-polymer and semi pre-polymer. In the preparation of polyurethanes by these methods the viscosity is increased as the reaction progresses ...
Mohammad Barmar   +2 more
doaj   +1 more source

Research Progress in Characterization Methods of Anti-corrosion and Wear-resistant Polyurethane Coatings [PDF]

open access: yesMATEC Web of Conferences, 2022
Polyurethane is a coating material widely used in the field of anti-corrosion and wear resistance. At present, a lot of research work has been carried out in the research and development of polyurethane materials and process improvement.
Jia Xinghui   +4 more
doaj   +1 more source

Nanoclay Dispersion and its Effect on Properties of Waterborne Polyurethanes [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2014
In recent years, waterborne polyurethanes as in coatings and adhesives formulations have attracted considerable attention because they are non-toxic, non-flammable and friendly to environment.
H. Honarkar, M. Barikani
doaj   +1 more source

Characterization of a Water-Dispersed Biodegradable Polyurethane-Silk Composite Sponge Using 13C Solid-State Nuclear Magnetic Resonance as Coating Material for Silk Vascular Grafts with Small Diameters

open access: yesMolecules, 2021
Recently, Bombyx mori silk fibroin (SF) has been shown to be a suitable material for vascular prostheses for small arteries. In this study, we developed a softer SF graft by coating water-dispersed biodegradable polyurethane (PU) based on ...
Takashi Tanaka   +5 more
doaj   +1 more source

Synthesis, Characterization, and Properties of Novel Aromatic UV Absorber Polyamides [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2019
Hypothesis: Aromatic polyamides are well known as a main group of high performance and heat-resistant polymers. One of the drawbacks to utilize these polymers is the difficulty in processing due to their insoluble nature in aprotic organic solvents in ...
Samal Babanzadeh   +1 more
doaj   +1 more source

Bend losses in flexible polyurethane antiresonant terahertz waveguides [PDF]

open access: yesOptics Express 29, 28692-28703 (2021), 2021
The quest for practical waveguides operating in the terahertz range faces two major hurdles: large losses and high rigidity. While recent years have been marked by remarkable progress in lowering the impact of material losses using hollow-core guidance, such waveguides are typically not flexible.
arxiv   +1 more source

An experimental study of the ecological restoration of rock slope based on polyurethane composite-based materials

open access: yesShuiwen dizhi gongcheng dizhi, 2021
In view of the problems existing in the ecological restoration of rock slope, such as the slide of the soil substrate, the serious loss of the surface soil and the poor growth of vegetation, etc., in this paper, polyurethane organic polymer materials and
Yongxiang YU   +6 more
doaj   +1 more source

Nanocomposite Foams of Polyurethane with Carbon Nanoparticles—Design and Competence towards Shape Memory, Electromagnetic Interference (EMI) Shielding, and Biomedical Fields

open access: yesCrystals, 2023
Polyurethane is a multipurpose polymer with indispensable physical characteristics and technical uses, such as films/coatings, fibers, and foams. The inclusion of nanoparticles in the polyurethane matrix has further enhanced the properties and potential ...
Ayesha Kausar   +5 more
doaj   +1 more source

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