Search Results - Q. Zhang
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Strengthening of crosslinked polymer by solid-state drawing
Published 2018-08-01Get full texteditorial
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“Waking sleeping beauty”: Regeneration of vulcanized rubber by triggering dynamicity of the inherent sulfur network
Published 2016-08-01Get full texteditorial
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Repeatedly self-healing of wider cracks in polymers
Published 2020-10-01Get full texteditorial
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Is it possible to strengthen rigid polymers by adding low aspect ratio nanofillers?
Published 2012-11-01Get full texteditorial
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Proper molecular level tool to explore the structure-property relationships in elastomer nanocomposites
Published 2015-07-01Get full texteditorial
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Enhanced bandwidth multi1ayer transducers for imaging applications
Published 2014-01-01Get full textThe operating frequency of the presently used PZT or PZT composite ultrasound imaging transducers is determined by the half wavelength resonance or fundamental thickness mode of vibration. This resonance frequency together with the two quarter wavelength matching layers governs the bandwidth of the...
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Faithful transfer of radiolarian silicon isotope signatures from water column to sediments in the South China Sea
Published 2025-07-01Get full text<p>Radiolarian silicon isotopes (<span class="inline-formula"><i>δ</i><sup>30</sup>Si<sub>rad</sub></span>) hold significant potential as a proxy for constraining past silicon cycling in seawater. However, the extent to which <span c...
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Quantitatively predicting the structural and mechanical properties of elastomer nanocomposites via molecular dynamics simulation
Published 2021-05-01Get full texteditorial
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Enhancement of mechanochemical self-blocking and self-healing of early minor damages in polymers through hyperbranched architecture
Published 2021-08-01Get full textFor more effective removal of the hidden troubles from early minor damages before their spreading out, hyperbranched polyurethane crosslinked by dioxyphenylalanine-Fe3+ (DOPA-Fe3+) and histidine-Zn2+ (His-Zn2+) coordination bonds is synthesized. By taking advantage of the cascading variation of the...
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Structure, morphology, and mechanical properties of polysiloxane elastomer composites prepared by in situ polymerization of zinc dimethacrylate
Published 2012-11-01Get full textMethyl vinyl silicone rubber/zinc dimethacrylate (VMQ/ZDMA) composites were prepared through in situ polymerization of ZDMA monomers during the peroxide curing. The polymerization conversion of ZDMA and morphology of the VMQ/ZDMA composites were studied. The results showed that most of the ZDMA mono...
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Stress intensification – an abnormal phenomenon observed during stress relaxation of dynamic coordination polymer
Published 2016-09-01Get full textThe authors report that during tensile stress relaxation test of a polyurethane crosslinked by catechol-iron coordination bonds, the stress gradually increases with time after the initial drop, which differs from the documented behaviors of other materials. Based on model experiment and structural c...
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An excellent ozone-resistant polymethylvinylsiloxane coating on natural rubber by thiol-ene click chemistry
Published 2015-06-01Get full textNatural rubber (NR) as renewable resource is a kind of cheap and versatile elastomer. A disadvantage of NR is that the ozone resistance is not good, which needs to be improved for its wider application. In this study, polymethylvinylsiloxane (PMVS) coating on natural rubber (NR) was realized for the...
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Studies on the selective localization of multi-walled carbon nanotubes in blends of poly(vinylidene fluoride) and polycaprolactone
Published 2015-01-01Get full textA ternary system based on blends of poly(vinylidene fluoride)(PVDF) and polycaprolactone (PCL) and made the multi-walled carbon nanotubes (MWNT) selective distribution in PCL phases via melt blending has been studied. The studies on conductivity of MWNT/PCL/PVDF composites with different proportions...
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Enhancing interfacial properties of carbon fiber/polyamide 6 composites by in-situ growing polyphosphazene nanotubes
Published 2021-09-01Get full textWe explored a simple approach to grow needle-like polyphosphazene nanotubes (PZSNT) on carbon fibers (CFPZSNT) via in-situ polycondensation under mild reaction conditions, to form a PZSNT-based multiscale reinforcement. PZSNT with abundant free hydroxyl groups can significantly change the chemical s...
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Correlation Between U/Th and Pb/Os Abundance Ratios and its Application in Nuclear Cosmochronology
Published 2025-01-01Get full textThe abundance ratios of radioactive elements U/Th and stable elements Pb/Os from the r -process are found to have a strong correlation. This correlation is quite robust with respect to astrophysical conditions. The U/Th–Pb/Os correlation is applied to provide customized initial abundance ratios U/Th...
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Effect of homopolymer poly(vinyl acetate) on compatibility and mechanical properties of poly(propylene carbonate)/poly(lactic acid) blends
Published 2012-11-01Get full textA small amount of homopolymer poly(vinyl acetate) (PVAc) is used to compatibilize the biodegradable blends of poly(propylene carbonate) (PPC) and poly(lactic acid) (PLA). Scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) results show that PVAc is selectively localized in...
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To immobilize polyethylene glycol-borate ester/lithium fluoride in graphene oxide/poly(vinyl alcohol) for synthesizing new polymer electrolyte membrane of lithium-ion batteries
Published 2017-01-01Get full textPolymer electrolyte membranes (PEMs) are potentially applicable in lithium-ion batteries with high safety, low cost and good performance. Here, to take advantages of ionic conductivity and selectivity of borate ester-functionalized small molecules as well as structural properties of polymer nanocomp...
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Fast curing ethylene vinyl acetate films with dual curing agent towards application as encapsulation materials for photovoltaic modules
Published 2014-02-01Get full textTo speed up curing of ethylene vinyl acetate (EVA) films as encapsulation materials for photovoltaic modules, a dual curing agent of benzoyl peroxide (BPO) and butylperoxy 2-ethylhexyl carbonate (TBEC) was introduced in this work. The experimental results indicated that for the weight ratio of BPO/T...
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