Polymer Composite | p. 4 | Scientific.Net

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class="page-name-block-text">Papers by Keyword: Polymer Composite</h1> </div> <div class="papers-author-content"> <div class="block-search-pagination"> <div class="pagination-container"><ul class="pagination"><li class="PagedList-skipToFirst"><a href="/paper-keyword/polymer-composite/1"><<</a></li><li class="PagedList-skipToPrevious"><a href="/paper-keyword/polymer-composite/3" rel="prev"><</a></li><li class="PagedList-ellipses"><a class="PagedList-skipToPrevious" href="/paper-keyword/polymer-composite/1" rel="prev">…</a></li><li><a href="/paper-keyword/polymer-composite/2">2</a></li><li><a href="/paper-keyword/polymer-composite/3">3</a></li><li class="active"><span>4</span></li><li><a href="/paper-keyword/polymer-composite/5">5</a></li><li><a href="/paper-keyword/polymer-composite/6">6</a></li><li class="PagedList-ellipses"><a class="PagedList-skipToNext" href="/paper-keyword/polymer-composite/7" rel="next">…</a></li><li class="PagedList-skipToNext"><a href="/paper-keyword/polymer-composite/5" rel="next">></a></li><li class="PagedList-skipToLast"><a href="/paper-keyword/polymer-composite/12">>></a></li></ul></div> </div> <div class="block-volume-title normal-text-gray"> <p> Paper Title<span>Page</span> </p> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.885.19">Effect of an Ionic Liquid on the Flexural and Fracture Mechanical Properties of EP/MWCNT Nanocomposites</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Gábor Szebényi, Levente Ferenc Tóth, József Karger-Kocsis </div> </div> <div id="abstractTextBlock499790" class="volume-info volume-info-text volume-info-description"> Abstract: The improvement of interfacial adhesion between multiwalled carbon nanotubes (MWCNTs) and epoxy resin (EP) was investigated in nanocomposites with the addition of an ionic liquid (IL, 1-Ethyl-3-methyl imidazolium tetrafluoroborate - EMIM BF<sub>4</sub>) as interfacial adhesion promoter. MWCNT (0, 0.3 and 0.5 weight%) was dispersed in EP through diluting an MWCNT-rich masterbatch prepared in presence and absence of IL. Three point bending and compact tension (CT) fracture mechanical tests were performed on specimens with different MWCNT contents with and without IL surfactant. IL addition resulted in easier dispersion of MWCNT in the EP masterbatch. With the addition of the IL the three point bending strength, the bending modulus of elasticity and the critical force required for crack propagation have increased significantly at the optimal, 0.3 weight% MWCNT content. Scanning electron microscopic (SEM) investigation of the fracture surfaces of the CT specimens revealed that incorporation of MWCNTs and its IL-assisted dispersion produced rougher surfaces suggesting higher fracture toughness than the reference EP. </div> <div> <a data-readmore="{ block: '#abstractTextBlock499790', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 19 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/KEM.712.324">Application of 3D Сomputed Microtomography for Investigating the Microstructural Defects of Carbon Fiber Reinforced Composite Made by 3D-Printing</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Andrey V. Filippov, Valery E. Rubtsov, Sergei Yu. Tarasov, Vladimir A. Beloborodov </div> </div> <div id="abstractTextBlock504157" class="volume-info volume-info-text volume-info-description"> Abstract: The microstructural defect of additive manufactured 3-component carbon fiber reinforced polymer (CFRP) composites has been studied using computed microtomography. The samples have been prepared using a 3D-printing process developed at Skolkovo Institute of Science and Technology, Russia. The research procedure has been described and internal defects of the fiber composite material have been detected and analyzed using a 3D image reconstructed from a number of cross section views. The defects larger 50 μm have been detected using the computed microtomography test. Defect-free images and defects typical for this type of composites such as delamination in polymer matrix and between fibers in a bundle, fiber breakage have been obtained. </div> <div> <a data-readmore="{ block: '#abstractTextBlock504157', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 324 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/KEM.712.313">The Use of Laser-Doppler Vibrometry for Modal Analysis of Carbon-Fiber Reinforced Composite</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Andrey V. Filippov, Vladimir A. Krasnoveikin, Nikolay V. Druzhinin, Valery E. Rubtsov </div> </div> <div id="abstractTextBlock503883" class="volume-info volume-info-text volume-info-description"> Abstract: Both modal analysis procedure and the results obtained on a three-component 3D-printed carbon-fiber reinforced composite (CFRC) are presented. Experimental modal analysis of on the composite has been carried out to obtain the dynamic behavior characteristics. As revealed, the different eigen-oscillations waveforms possess different sensitivity of its amplitude frequency response to structural defects of the composite. For the similar waveforms we observed the differences in eigen-oscuillation frequencies, vibration velocities and damping factors which can be caused by the presence of numerous defects homogeneously distributed in one of the samples. </div> <div> <a data-readmore="{ block: '#abstractTextBlock503883', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 313 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.871.40">Flammability of the Disperse-Filled Polymer Composites</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Andrey Askadsky, Valentin Ushkov, Vladimir Smirnov, Viktor Voronin </div> </div> <div id="abstractTextBlock503589" class="volume-info volume-info-text volume-info-description"> Abstract: For the purpose of fire safe construction it is necessary to develop and investigate effects of fillers to flammability of building materials, including composite materials with polymer matrix. In present work we demonstrate the results of such investigation. We have examined influence of chemical composition, amount of mineral fillers to flammability, smoke-forming ability and limiting oxygen index of building materials based on different polymer binders. The experimental data indicate that the main parameter which determines the influence of mineral fillers on the flammability of composites is a specific heat absorbed by the filler. The dependence between limiting oxygen index and specific heat of mineral fillers is revealed for composites with epoxy matrices. This dependence is simple and beneficial for practical use. </div> <div> <a data-readmore="{ block: '#abstractTextBlock503589', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 40 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.862.174">Use of Composite Materials for FDM 3D Print Technology</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Jiří Šafka, Michal Ackermann, Jiří Bobek, Martin Seidl, Jiří Habr, Luboš Bĕhálek </div> </div> <div id="abstractTextBlock500813" class="volume-info volume-info-text volume-info-description"> Abstract: This article deals with specific polymer composites modified for the Fused Deposition Modelling (FDM) which is a 3D print technology. These two phase systems involve thermoplastic matrix filled with natural fibres. The crucial demand of this progressive technology is put on the accuracy of the semi-product formed into the filament shape. To reach the smooth production of 3D prototypes the filament should have a constant diameter. In the article, individual steps of the polymer composite pelletization and following pre-processing and processing activities are described. Among these steps the extrusion of the filaments belongs and subsequent print test on “RepRap” device accompanied by optimization of building parameters. Tensile specimens were chosen for print with regard to maps mechanical properties of this newly developed material which was the final stage of this work. Tensile test curves were then compared with those graphs which can be found for the material produced by conventional technologies such as injection moulding. </div> <div> <a data-readmore="{ block: '#abstractTextBlock500813', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 174 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.862.166">Dynamic-Mechanical Properties of Polymer Composites with the Short and Long Glass Fibers</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Petr Lenfeld, Luboš Bĕhálek, Martin Boruvka, Jan Prusek </div> </div> <div id="abstractTextBlock500635" class="volume-info volume-info-text volume-info-description"> Abstract: Nowadays the use of glass fibers in development of polymer composites creates a very interesting research area aiming to achieve multiple outputs to different applications. The use of thermoplastic composites reinforced with glass fibers in engineering applications like automotive industry has increased considerably in the last few decades. These composites combine high mechanical strength properties, reduced mass, easy processing and corrosion resistance. The shifting from metals to engineering composites pushes towards lightweighting benefits which results in improved fuel efficiency. This paper is focused on the assessment of polymer composites properties on the basis of polyamides (PA6.6) with the short (GF) and long glass fibres (LGF). The bulk characterization of all samples has been made by Dynamic Mechanical Analysis (DMA) depending on temperature, stress frequency and the weight percentage of reinforcement in matrix. </div> <div> <a data-readmore="{ block: '#abstractTextBlock500635', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 166 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.862.123">Influence of Different Coupling Agent Type on Processibility and Applicability of Polymer Composites</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Martin Seidl, Jiří Habr, Luboš Bĕhálek, Jiří Šafka, Michal Ackermann, Jiří Bobek </div> </div> <div id="abstractTextBlock500226" class="volume-info volume-info-text volume-info-description"> Abstract: The contribution deals with the processibility and applicability of polymer composite systems based on polypropylene matrix. The composites were filled with vegetable fibres (particularly the cotton fibres, coir fibres, hemp fibres and jute fibres) and the interface between the polymeric matrix and the natural fibres was modified using two types of coupling agents (the organosilane coupling agent and maleic anhydride grafted polypropylene). For evaluation of the final impact of all three phases presence on the processibility of the polymer composite the melt flow behaviour was analyzed (MFI analysis according to ISO 1133) for the filler concentration of 10, 20 and 30 wt. %. This study involves also the natural fibre surface profile analyses (based on SEM observation) and the applicability of created composite materials was determined using the heat deflection temperature (HDT analysis according to ISO 75). </div> <div> <a data-readmore="{ block: '#abstractTextBlock500226', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 123 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/KEM.674.48">Pultruding of Metal Powder Filled Glass Fiber Reinforced Polymer Composites</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Henri Rummo, Renno Veinthal, Aare Aruniit </div> </div> <div id="abstractTextBlock489408" class="volume-info volume-info-text volume-info-description"> Abstract: The present article focuses on manufacturing of metal powder filled pultrusion profiles for electro-technical applications. Herein a set of test material has been reviewed, which was prepared with the aim to present an optimized composite structure with high metal powder content for magnetic slot wedge production, outperforming the products currently available by alternative technology – compression moulding.This article gives a short overview of incorporating fine metal powders as fillers into pultrusion process (including the technical challenges) and the experimental work done in the project. The selection and analysis of components have been briefly discussed along with the results of material tests conducted on prepared composite samples. Mechanical, dielectric and magnetic properties of the samples were studied at different filler loadings and compared to the properties of iron powder filled compressed laminates.Several application specific material properties were determined, including flexural strength according to ISO 178, volume and surface resistivity similarly to IEC 93, and relative permeability using vibrating sample magnetometer (VSM). Scanning Electron Microscope (SEM) and various image processing software were used to analyse the composition and microstructure of the material samples. Material test results are presented at different iron powder loadings from 20 to 55 wt% and recommendations given for optimal materials selection. </div> <div> <a data-readmore="{ block: '#abstractTextBlock489408', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 48 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/AMR.1129.438">Hard and Soft: Toughening Concrete by Impregnation with Functional Elastomers</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Oliver Weichold, Moshe Puterman </div> </div> <div id="abstractTextBlock489367" class="volume-info volume-info-text volume-info-description"> Abstract: Toughening is a concept frequently used in brittle materials in order to prevent premature failure. For concrete, toughening is almost exclusively achieved by pre-stressing, i.e. by creating residual stresses that force cracks to close. However, this can only be accomplished with certain element geometries and is particularly unsuitable for thin specimens.An alternative method of toughening is to deflect the crack or to absorb the crack tip by means of a suitable material, in particular viscoelastic polymers. In the present study, the concrete samples are transformed into hybrid inorganic/organic composites, in which the organic phase exerts the crack-stopping properties. To do so, the pore system is filled with a mixture of methyl methacrylate and 2-hydroxyethyl methacrylate, which is then polymerised to form a functional copolymer. Witha 1:1 ratio of the two monomers, a 4.5-fold increase in flexural strength and 2.3-fold increase in bending modulus was observed compared to the reference concrete. It is assumed that the additional increase compared to concrete impregnated with polymers not containing 2-hydroxyethyl methacrylate is the direct consequence of the interfacial interaction provided by the presence of pendant hydroxyethyl groups in the polymer. </div> <div> <a data-readmore="{ block: '#abstractTextBlock489367', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 438 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/AMM.808.137">Friction and Wear Behavior of Moglice Polymer Composite through Dry Sliding Ball-on-Flat Reciprocating Test</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Virgil Iliuţă, Minodora Rîpă, Adriana Preda, Gabriel Andrei </div> </div> <div id="abstractTextBlock489787" class="volume-info volume-info-text volume-info-description"> Abstract: This paper presents an experimental evaluation of friction and wear properties of a composite material-moglice - made by Diamant Metallplastic GmbH company, from Germany. This material is a polymeric matrix reinforced with particles of cristobalite (αSiO<sub>2</sub>) and molybdenum disulphide (MoS<sub>2</sub>). The material is recommended by the manufacturer for repairing metal parts. This material was tribologically tested in dry friction conditions, on a ball on flat configuration, using the reciprocating method, on a CETR UMT-2 tribometer (Bruker Corporation). The counterpart was a steel ball. The tests were performed at room temperature in normal conditions of relative humidity of 40-60% using an average sliding speed of 3.5 mm/s. The tests were carried out at normal loads of 20, 30, 40 and 50N over a sliding distance of 100 m. The wear traces obtained were optically examined with μSCAN laser profilometer (NANOFOCUS). </div> <div> <a data-readmore="{ block: '#abstractTextBlock489787', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 137 </div> </div> <div class="block-bottom-pagination"> <div class="pager-info"> Showing 31 to 40 of 115 Paper Titles </div> <div class="pagination-container"><ul class="pagination"><li class="PagedList-skipToFirst"><a href="/paper-keyword/polymer-composite/1"><<</a></li><li class="PagedList-skipToPrevious"><a href="/paper-keyword/polymer-composite/3" rel="prev"><</a></li><li class="PagedList-ellipses"><a class="PagedList-skipToPrevious" href="/paper-keyword/polymer-composite/1" rel="prev">…</a></li><li><a href="/paper-keyword/polymer-composite/2">2</a></li><li><a href="/paper-keyword/polymer-composite/3">3</a></li><li class="active"><span>4</span></li><li><a href="/paper-keyword/polymer-composite/5">5</a></li><li><a href="/paper-keyword/polymer-composite/6">6</a></li><li class="PagedList-ellipses"><a class="PagedList-skipToNext" href="/paper-keyword/polymer-composite/7" rel="next">…</a></li><li class="PagedList-skipToNext"><a href="/paper-keyword/polymer-composite/5" rel="next">></a></li><li class="PagedList-skipToLast"><a href="/paper-keyword/polymer-composite/12">>></a></li></ul></div> </div> </div> </div> </div> </div> </div> <div class="social-icon-popup"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-popup-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-popup-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-popup-icon social-icon"></i></a> </div> </div> <div class="sc-footer"> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="footer-menu col-md-12 col-sm-12 col-xs-12"> <ul class="list-inline menu-font"> <li><a href="/ForLibraries">For Libraries</a></li> <li><a href="/ForPublication/Paper">For Publication</a></li> <li><a href="/insights" target="_blank">Insights</a></li> <li><a href="/DocuCenter">Downloads</a></li> <li><a href="/Home/AboutUs">About Us</a></li> <li><a href="/PolicyAndEthics/PublishingPolicies">Policy & Ethics</a></li> <li><a href="/Home/Contacts">Contact Us</a></li> <li><a href="/Home/Imprint">Imprint</a></li> <li><a href="/Home/PrivacyPolicy">Privacy Policy</a></li> <li><a href="/Home/Sitemap">Sitemap</a></li> <li><a href="/Conferences">All Conferences</a></li> <li><a href="/special-issues">All Special Issues</a></li> <li><a href="/news/all">All News</a></li> <li><a href="/read-and-publish-agreements">Read & Publish Agreements</a></li> </ul> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-footer-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-footer-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-footer-icon social-icon"></i></a> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12 footer-copyright"> <p> © 2024 Trans Tech Publications Ltd. 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