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Graphene-induced enhanced anticorrosion performance of waterborne epoxy resin coating

Frontiers of Materials Science 2020年第2期14卷 211-220页

作者： Huan-Yan XU Dan LU Xu HAN School of Materials Science and Engineering Harbin University of Science and TechnologyHarbin 150040China

In this work,waterborne epoxy resin E44 and graphene were employed as the matrix and nanofiller,respectively,to construct composite coatings with enhanced anticorrosion *** pattern and TEM observation indicated that the obtained graphene had a stacked structure of few-layer graphitic sheets with numbers of *** observations revealed that no defects or microcracks existed on the surface of graphene/epoxy coatings and the internal micropores and microcracks were filled by *** spectra displayed that all the characteristic absorption peaks were attributed to the epoxy resin cured with *** Tafel polarization curves showed that,as the graphene addition amount increased,the corrosive potential increased and the corrosive current *** results proved that the addition of graphene into epoxy coatings could not only increase the impedance arc in Nyquist plots,but also increase the impedance modulus at low ***,the enhanced anticorrosion mechanism was proposed and discussed.

关键词： graphene waterborne epoxy anticorrosion electrochemical property

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Effect of waterborne epoxy on Performances of Cement Asphalt Mortar

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武汉理工大学学报 2010年第17期32卷 201-205,214页

作者： TIAN H YU J Y Key Laboratory of Silicate Materials Science and Engineering of Education Ministry Wuhan University of TechnologyWuhan 430070China

The waterborne epoxy modified cement asphalt mortars were prepared with varying content waterborne epoxy and a constant fluidity. The effects of waterborne epoxy emulsion on water/cement ratio,compressive and flexural strength,tensile bond strength,freezing and thawing damage,corrosion resistance of cement asphalt mortar cured for 7 and 28 d have been investigated. The results show that waterborne epoxy is very beneficial to the improvement of mechianical properties and durability of cement asphalt mortar. waterborne epoxy can improve the flowing ability of cement asphalt mortar. With the increasing of waterborne epoxy content,compressive strength,flexural strength and bond strength all have increased obviously. The modified mortar shows higher resistance to corrosion and the freezing and thawing compared with control mortar.

关键词： cement asphalt mortar waterborne epoxy mechanical properties durability

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