Results 31 to 40 of about 1,102,117 (347)

Preparation and mechanical properties of nano-silica/UPR polymer composite

open access: yesScience and Engineering of Composite Materials, 2014
This article mainly aims at experiments used for modifying unsaturated polyester resin (UPR), and trying to enhance the strengthening and toughening performance of nano-silica/UPR polymer composite in order to improve its integrated mechanical properties
Wang Yan-qing   +4 more
doaj   +1 more source

Impact of Nano-silica on the hydration, strength, durability, and microstructural properties of concrete: A state-of-the-art review

open access: yesCase Studies in Construction Materials, 2023
Concrete significantly impacts the atmosphere as its primary raw material, Portland cement, determines a considerable proportion of carbon dioxide in its production process.
Fadi Althoey   +5 more
doaj   +1 more source

Experimental study of the mechanical properties and microstructure of geopolymer paste containing nano-silica from agricultural waste and crystalline admixtures

open access: yesCase Studies in Construction Materials, 2022
This study explored the influence of nano-silica and Crystalline Admixture (CAs) on the mechanical properties and microstructure of geopolymer pastes. Nano-silica and CAs was added to the mixture at 3%, 4% and 5% respectively by weight of fly ash.
Ar Razi Alvee   +7 more
doaj   +1 more source

Morphology of polypropylene/silica nano‐ and microcomposites

open access: yesJournal of Applied Polymer Science, 2012
AbstractThe aim of this study was to compare the effects of different silica grades on the structure and morphology of isotactic polypropylene (iPP)/silica composites to better understand their structure–property relationships. Isotactic polypropylene composites with 2, 4, 6, 8 vol % of added silica fillers differing in particle size (micro‐ vs ...
Pustak, Anđela   +6 more
openaire   +2 more sources

Propiedades reológicas y mecánicas de un hormigón autocompactante con adición de nano-sílice y micro-sílice

open access: yesRevista ALCONPAT, 2016
Propiedades reológicas y mecánicas de un hormigón autocompactante con adición de nano-sílice y micro-sílice RESUMEN El hormigón autocompactante es el resultado de diseñar mezclas de calidad con capacidad para asegurar su correcta colocación en ...
E. Sánchez   +3 more
doaj   +1 more source

Evaluation of the nano silica and nano waste materials on the corrosion protection of high strength steel embedded in ultra-high performance concrete

open access: yesScientific Reports, 2021
Corrosion resistance of high strength steel (HHS) embedded in ultra-high performance concrete (UHPC) immersed in 3.5% NaCl solution is evaluated in the absence and presence of nano silica (NS), nano glass waste (NGW), nano rice husk ash (NRHA) and nano ...
S. A. Mostafa   +3 more
semanticscholar   +1 more source

A "water shell" model for the dielectric properties of hydrated silica-filled epoxy nano-composites [PDF]

open access: yes, 2007
The electrical properties of epoxy resin have been studied as a function of hydration. The epoxy was studied in an un-filled state, filled with 40 µm SiO2 particles, and filled with 50 nm SiO2 particles.
Fothergill, J., Rowe, S. W., Zou, C.
core   +1 more source

Effect of the Addition of Nano-Silica and Poly(ε-caprolactone) on the Mechanical and Thermal Properties of Poly(lactic acid) Blends and Possible Application in Embossing Process

open access: yesPolymers, 2022
In this study, the mechanical and thermal properties of poly(lactic acid) (PLA) blends with an addition of poly(ε–caprolactone) (PCL) and fumed silica (SiO2) were evaluated to research the possibility of their use as relief printing plates for embossing ...
Sanja Mahović Poljaček   +5 more
semanticscholar   +1 more source

Building solids inside nano-space: from confined amorphous through confined solvate to confined ‘metastable’ polymorph [PDF]

open access: yes, 2015
The nanocrystallisation of complex molecules inside mesoporous hosts and control over the resulting structure is a significant challenge. To date the largest organic molecule crystallised inside the nano-pores is a known pharmaceutical intermediate – ROY
Aceves-Hernandez   +69 more
core   +1 more source

The Effect of Nano-Silica and Nano-Alumina with Polypropylene Fiber on the Chemical Resistance of Alkali-Activated Mortar

open access: yesSustainability, 2022
This study investigates the simultaneous effect of nano-silica and nano-alumina with and without polypropylene fiber on the chemical-resistant of alkali-activator mortar (AAM) exposed to (5% Sulfuric Acid, 5% Magnesium Sulphate, and 3.5% Sodium chloride)
Mahmood Hunar Dheyaaldin   +2 more
semanticscholar   +1 more source

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