Results 11 to 20 of about 241,122 (250)

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

Curing and Adhesive Characteristics of Single-Component Polyurethane Binders [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2021
Monocomponent polyurethane is a reactive adhesive, and its mechanical properties are better than those of conventional asphalt binders, but the reaction process is easily affected by environmental factors such as temperature, air and water, etc.
Zhong Ke   +5 more
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

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

Research on the selection of polyurethane adhesive and direct tensile properties of polyurethane rubber particle mixture

open access: yesCase Studies in Construction Materials, 2023
Poroelastic road surface has been found to be an effective solution for the traffic noise due to their porosity and elastic properties compared with conventional asphalt surface. However, the appropriate polyurethane for road utilization is still unclear
Junfeng Gao   +4 more
doaj   +1 more source

Synthesis of polyurethane/clay nanocomposites based palm oil polyol coating [PDF]

open access: yesJournal of Mechanical Engineering and Sciences, 2015
In this study, we investigated the Polyurethane paint based on palm oil with the addition of nanoparticles montmorillonite as a heat-resistant. The composites with 1 wt%, 3 wt% and 5 wt% of bentonite filler content obtained by synthesizing in situ were ...
Teuku Rihayat   +4 more
doaj   +3 more sources

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

A spectroscopic study of the degradation of polyurethane coil coatings. [PDF]

open access: yes, 2012
PhDThe degradation of polyurethane (PU) coil coatings were studied with step scan phase modulation photo-acoustic (SS-PM-PA) FTIR, confocal Raman mapping (CRM) and scanning electron microscopy (SEM). PU coatings were oven cured for 30 seconds to reach
Zhang, Ying
core   +4 more sources

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