Results 61 to 70 of about 26,760 (211)

Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2011
Effect of Kraft lignin as a compatibilizer on the short-term water absorption (2 and 24 hours) and mechanical properties of wood flour-polypropylene composites was studied. The black liquor of Chooka pulp and paper mill was acidified and Kraft lignin was
Rabi Behroz   +2 more
doaj   +1 more source

Mechanical Properties of Wood-plastic Composites Produced with Recycled Polyethylene, Used Tetra Pak® Boxes, and Wood Flour

open access: yesBioResources, 2022
The recycling industry has developed rapidly in recent years. Paper, plastic, glass, and metals are the most recycled materials. In this study, composite boards were produced using recycled polyethylene (R-PE) mixed with used Tetra Pak® boxes (TPBs) and ...
Bekir Cihad Bal
doaj   +2 more sources

Effect of Silane Coupling Agent on Flexural Strength and Hardness of Wheat Straw Polystyrene Composites

open access: yesASM Science Journal, 2021
In the present research work, the effect of silane treatment along with alkali treatment on flexural strength, flexural modulus, and hardness investigated.
R.S.N Sahai   +2 more
doaj   +1 more source

Flexible-to-semiflexible chain crossover on the pressure-area isotherm of lipid bilayer [PDF]

open access: yes, 2007
We found theoretically that competition between ~Kq^4 and ~Qq^2 terms in the Fourier transformed conformational energy of a single lipid chain, in combination with inter-chain entropic repulsion in the hydrophobic part of the lipid (bi)layer, may cause a crossover on the bilayer pressure-area isotherm P(A)~(A-A_0)^{-n}.
arxiv   +1 more source

Study of the flexural modulus and the micromechanics of old newspaper reinforced polypropylene composites

open access: yesBioResources, 2019
The inclusion of old newspaper as reinforcement in composites promotes the use of environmentally friendly materials, reduces landfilling, decreases chemical treatments to bleach the recycled paper, and provides alternatives to glass fiber. While there are studies on the tensile strength and stiffness of old newspaper reinforced materials, there is a ...
Espinach Orús, Xavier   +6 more
openaire   +4 more sources

Optimisation of hybrid high-modulus/high-strength carbon fiber reinforced plastic composite drive [PDF]

open access: yes, 2011
This study deals with the optimisation of hybrid composite drive shafts operating at subcritical or supercritical speeds, using a genetic algorithm. A formulation for the flexural vibrations of a composite drive shaft mounted on viscoelastic supports including shear effects is developed.
arxiv   +1 more source

The Effective Flexural Modulus of Filament Wound GRP Tapered Poles

open access: yesTehnicki vjesnik - Technical Gazette, 2020
The composite lighting poles are filament wound GRP tapered tubes with a variable wall thickness across the length. In this study, the effective flexural properties of GRP poles have been determined, experimentally and theoretically. Cantilever bending tests were performed on full-scale GRP tubes and the effective flexural modulus was calculated from ...
Ana Skender   +2 more
openaire   +4 more sources

The effect of nanoclay filler loading on the flexural strength of fiber-reinforced composites

open access: yesDental Research Journal, 2012
Background: Flexural strength of prosthesis made with dental composite resin materials plays an important role in their survival. The aim of this study was investigating the effect of nanoclay fillers and Poly (methyl methacrylate)-grafted (PMMA-grafted)
Vajihesadat Mortazavi   +5 more
doaj   +1 more source

Combined effect of nano-SiO2 particles and steel fibers on flexural properties of concrete composite containing fly ash

open access: yesScience and Engineering of Composite Materials, 2014
This paper presents an experimental study to evaluate the combined effect of nano-SiO2 particles and steel fibers on flexural properties of concrete composites containing fly ash.
Zhang Peng   +4 more
doaj   +1 more source

Investigating the Composite/Metal Interface and its Influence on the Electrical Resistance Measurement [PDF]

open access: yesarXiv, 2018
The advantages introduced by carbon fiber reinforced polymer (CFRP) composites has made them an appropriate choice in many applications and an ideal replacement for conventional materials. The benefits using CFRP composites are due to their lightweight, high stiffness, as well as corrosion resistance.
arxiv  

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