Articles with "silica surface" as a keyword



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Simultaneously reduced viscosity and enhanced strength of liquid silicone rubber/silica composites by silica surface modification

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Published in 2017 at "Journal of Applied Polymer Science"

DOI: 10.1002/app.45544

Abstract: Silica is the most widely-used filler to reinforce liquid silicone rubber (LSR), but the high viscosity of LSR/silica suspension significantly limits its processing flexibility. To balance the processibility and reinforcing efficiency of LSR/silica systems, two… read more here.

Keywords: viscosity; silica; liquid silicone; silica surface ... See more keywords
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Molecular understanding of the adhesive interactions between silica surface and epoxy resin: Effects of interfacial water

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Published in 2019 at "Journal of Computational Chemistry"

DOI: 10.1002/jcc.25559

Abstract: The molecular mechanism of the adhesion between silica surface and epoxy resin under atmospheric conditions is investigated by periodic density‐functional‐theory (DFT) calculations. Slab models of the adhesion interface were built by integrating a fragment of… read more here.

Keywords: epoxy resin; water; surface; adhesion ... See more keywords
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Effect of argon gas in oxygen catalytic recombination on a silica surface: A reactive molecular dynamics study

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Published in 2020 at "Acta Astronautica"

DOI: 10.1016/j.actaastro.2020.05.044

Abstract: Abstract Molecular dynamics analysis using a reactive force field (ReaxFF) potential is carried out to investigate microscopically the effect of argon gas in atomic oxygen recombination on a silica surface. The effect of argon atoms… read more here.

Keywords: oxygen; gas; silica surface; recombination ... See more keywords
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First-principles molecular dynamics investigation of ceria/silica sliding interface toward functional materials design for chemical mechanical polishing process

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Published in 2020 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2020.147259

Abstract: Abstract We report a form of chemical mechanical polishing (CMP) in which ceria abrasive particles polish a silicon wafer surface in a water environment. The Car-Parrinello molecular dynamics (CPMD) method, which enables chemical reaction dynamics… read more here.

Keywords: bond; water; surface; ceria ... See more keywords
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Bio-inspired Mn-catalysts immobilized on silica surface: The influence of the ligand synthesis on catalytic behavior

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Published in 2018 at "Catalysis Communications"

DOI: 10.1016/j.catcom.2018.01.026

Abstract: Abstract Two approaches are adopted for synthesis of heterogeneous catalysts, a) Grafting of the entire biomimetic catalyst and b) step-by-step Solid Phase Synthesis of the catalyst on the surface of colloidal silica; both of them… read more here.

Keywords: inspired catalysts; bio inspired; silica surface; catalytic behavior ... See more keywords
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Photoexcitation effect on the adsorption of hazardous gases on silica surface.

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Published in 2018 at "Journal of hazardous materials"

DOI: 10.1016/j.jhazmat.2017.07.052

Abstract: There is very little scientific understanding of photoexcitation effect on the adsorption properties of adsorbent. The adsorption of four hazardous gases (SARIN (propan-2-ylmethylphospho-nofluoridate), methyl dichlorophosphate (MDCP), trimethyl phosphate (TMP) and hydrogen sulfide (H2S)) on silica… read more here.

Keywords: state; adsorption; effect adsorption; photoexcitation ... See more keywords
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Reversible Adsorption of Polycarboxylates on Silica Fume in High pH, High Ionic Strength Environments for Control of Concrete Fluidity

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Published in 2022 at "Langmuir"

DOI: 10.1021/acs.langmuir.1c02419

Abstract: Polycarboxylate-based superplasticizers are essential for production of ultrahigh-performance concrete (UHPC), facilitating particle dispersion through electrostatic repulsion and steric hindrance. This study examines for the first time the effect of changes in pH, ionic strength, and… read more here.

Keywords: adsorption; silica fume; silica surface; ionic strength ... See more keywords
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Role of Drug Adsorption onto the Silica Surface in Drug Release from Mesoporous Silica Systems.

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Published in 2018 at "Molecular pharmaceutics"

DOI: 10.1021/acs.molpharmaceut.7b00778

Abstract: Factors contributing to incomplete drug release from a number of mesoporous silica formulations are not well understood. This study aims to address this gap in knowledge by exploring the role of drug adsorption onto silica… read more here.

Keywords: drug; drug release; adsorption; silica surface ... See more keywords
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Evidence for Silica Surface Three- and Five-Membered Metallacycle Intermediates in the Catalytic Cycle of Hydroaminoalkylation of Olefins Using Single-Ti-Metal Catalysts

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Published in 2020 at "Organometallics"

DOI: 10.1021/acs.organomet.0c00246

Abstract: The single-site silica-supported group IV metal amido complex [Ti(NMe2)4] gives the tris(amido)-supported fragment [(≡Si–O−)Ti(−NMe2)3], which transforms into a three-membered metallacycle (called ... read more here.

Keywords: surface three; membered metallacycle; evidence silica; metal ... See more keywords
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Silica Surface Modification and Its Application in Permanent Link with Nucleic Acids

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Published in 2018 at "ACS Omega"

DOI: 10.1021/acsomega.8b00547

Abstract: In this paper, the Pt-catalyzed hydrosilylation of hydroxyl ethers is described. Various bifunctional alkoxysilanes were obtained and applied in O-silylation of free hydroxyl groups on the silica surface. These modified solid materials have been used… read more here.

Keywords: modification application; nucleic acids; surface; silica surface ... See more keywords
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Silica Surface Charge Enhancement at Elevated Temperatures Revealed by Interfacial Water Signals.

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Published in 2020 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.9b11710

Abstract: The structure of water adjacent to silica is sensitive to the degree of deprotonation of surface silanol groups. As a result, close inspection of signals originating from these water molecules can be used to reveal… read more here.

Keywords: silica surface; water; charge enhancement; surface charge ... See more keywords