Results 21 to 30 of about 17,632 (284)

Layered calcium phenylphosphonate: a hybrid material for a new generation of nanofillers

open access: yesBeilstein Journal of Nanotechnology, 2018
The use of nanosheets of layered calcium phenylphosphonate as a filler in a polymeric matrix was investigated. Layered calcium phenylphosphonate (CaPhP), with chemical formula CaC6H5PO3∙2H2O, is a hybrid organic–inorganic material that exhibits a ...
Kateřina Kopecká   +5 more
doaj   +1 more source

Cement stone on the basis of quartz-ash-cement binder [PDF]

open access: yesНанотехнологии в строительстве, 2022
Introduction. One of the promising areas related to formation of concrete structure on the basis of a mineral binder with specified performance properties employs the addition of ultradispersed fillers (nanomodifiers) to the binder composition. Wastes of
Anatoly F. Kosach   +3 more
doaj   +1 more source

Graphene-based dental adhesive with anti-biofilm activity [PDF]

open access: yes, 2017
BACKGROUND: Secondary caries are considered the main cause of dental restoration failure. In this context, anti-biofilm and bactericidal properties are desired in dental materials against pathogens such as Streptococcus mutans.
Bossù, Maurizio   +10 more
core   +1 more source

Analysis of Selected Dielectric Properties of Epoxy-Alumina Nanocomposites Cured at Stepwise Increasing Temperatures

open access: yesEnergies, 2023
The paper presents the effects of gradual temperature curing on the dielectric properties of epoxy nanocomposite samples. Samples were prepared based on Class H epoxy resin filled with nano-alumina (Al2O3) for different wt% loadings (0.5 wt% to 5.0 wt ...
Anna Dąda   +3 more
doaj   +1 more source

Simple Method for the Preparation of Composites Based on PA6 and Partially Exfoliated Graphite [PDF]

open access: yes, 2012
In the present work, the preparation of composite systems based on polyamide 6 (PA6) and exfoliated graphite was attempted by applying a simple procedure, which consists of a preliminary dispersion/exfoliation of graphite in the monomer, namely, ε ...
Bocchini, Sergio   +5 more
core   +3 more sources

A mixed-method analysis on students’ critical thinking and problem solving skill development in Malaysian public universities [PDF]

open access: yes, 2018
Employers nowadays are looking for potential fresh graduates who are able to think outside the box, so that they can produce with quality works. However, they are failed to do so and this situation result in high unemployment rate among graduates, mainly
Mohamed Saat, ‪Maisarah   +1 more
core   +1 more source

Comparative Analysis of Properties of PVA Composites with Various Nanofillers: Pristine Clay, Organoclay, and Functionalized Graphene

open access: yesNanomaterials, 2019
Poly(vinyl alcohol) (PVA) nanocomposites containing three different nanofillers are prepared and compared in terms of their thermal properties, morphologies, and oxygen permeabilities.
Jin-Hae Chang
doaj   +1 more source

Effects of chemical structure and morphology of graphene-related materials (GRMs) on melt processing and properties of GRM/polyamide-6 nanocomposites [PDF]

open access: yes, 2020
In this work, different graphene-related materials (GRMs) and polyamide-6 (PA6) were melt compounded by twin screw extrusion. The GRMs prepared were graphene nanoplatelets (GNPs), graphene oxide (GO), reduced graphene oxide (rGO) and silane ...
Elmarakbi, Ahmed   +3 more
core   +2 more sources

Influence of adhesion promoters and curing-light sources on the shear bond strength of orthodontic brackets

open access: yesIndian Journal of Dental Research, 2012
Context: The effect of different curing units on bond strength of orthodontic brackets is still unclear when utilizing nanofilled composites in comparison with traditional Transbond-XT.
Claudia Tavares Machado   +5 more
doaj   +1 more source

Sepiolite-Based Anisotropic Nanoparticles: A New Player in the Rubber Reinforcement Technology for Tire Application

open access: yesApplied Sciences, 2022
Elastomer reinforcement with nanofillers has been a main rubber technology topic since the discovery of rubber vulcanization. Starting from carbon black, many researchers studied the correlations between the reinforcement of rubber and the colloidal ...
Luciano Tadiello   +2 more
doaj   +1 more source

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