Dernières nouvelles sur les matériaux composites

The use of biodegradable polyesters derived from green sources and their combination with natural abundantly layered aluminosilicate clay, e.g., natural montmorillonite, meets the requirements for the development of new sustainable, disposable, and biodegradable organic dye sorbent materials. In this regard, novel electrospun composite fibers, based on poly β-hydroxybutyrate (PHB) and...

Numerical simulations of 2D phase field models show that deformable suspensions display the hallmark of yield-stress fluids....

Background and Objective: This study aimed to compare the surface finish of milled leucite-reinforced ceramics polished with ceramic and composite polishing systems based on the manufacturers’ recommendations. Materials and Methods: Sixty subtractive computer-aided manufactured (s-CAM) leucite-reinforced glass-ceramic specimens (IPS-Empress-CAD) were assigned into six groups: no polishing, a ceramic polishing kit,...

Carbon dots-based composite hydrogel selectively eliminates bacteria and promotes osteogenesis for infectious bone repair....

We develop a general approach for the computation of the effective properties of nonlinear viscoelastic composites. For this purpose, we employ the asymptotic homogenisation technique to decouple the equilibrium equation into a set of local problems. The theoretical framework is then specialised to the case of a strain energy density...

Huntsman, owner of the Araldite brand, has developed polyurethane, epoxy and carbon nanotube materials for vehicle battery construction and protection. For underbody battery protection, Rimline (=polyurethane) wet compression moulding material are low-viscosity liquid resins for low-pressure moulding of composites with a high fibre volume fraction – formulated for high-pressure mix...

A biocompatible metal–organic framework MIL-100(Fe) loaded with the active compounds of tea tree essential oil was used to produce composite films based on κ-carrageenan and hydroxypropyl methylcellulose with the uniform distribution of the particles of this filler. The composite films featured great UV-blocking properties, good water vapor permeability, and modest...

Les capteurs piézorésistifs destinés à surveiller les mouvements humains sont essentiels pour la prévention et le traitement des blessures. Le caoutchouc naturel est un matériau d'origine renouvelable qui peut être utilisé pour le développement de capteurs souples portables. Dans cette étude, le caoutchouc naturel a été combiné au noir d'acétylène pour développer un capteur piézorésistif souple...

Cette approche pourrait également améliorer les performances de nombreux autres matériaux....

In this study, the fabrication of nickel (Ni)-cellulose nanofiber (CNF) composite electroplating films was attempted using sodium carboxymethyl cellulose (CMC) and 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO)-oxidized CNF as CNF introduced with carboxy groups. As a result, co-deposition was confirmed for both CNFs, and the former showed 82% improvement in surface Vickers hardness...

Mixing disposable diapers into concrete can cut down on one of landfills' biggest problems. Deposit PhotosDiapers are a scourge on landfills. Mixing them into buildings' concrete frames could dramatically reduce that problem. The post Dirty diapers could be recycled into cheap, sturdy concrete appeared first on Popular Science....

Background: To compare the surface roughness and microhardness of Ceram.x® SphereTEC™ one and Filtek Z350 XT after in-office bleaching with Pola office. Methods: Twenty samples each of (10 mm diameter and 2 mm height) Ceram.x® SphereTEC™ one and Filtek Z350 XT were prepared. The samples were subjected to three bleaching...