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Influences on the mechanical properties of SRCs in a combined compacting and back injecting process / Fabian Jakob in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 141-151 Titre : Influences on the mechanical properties of SRCs in a combined compacting and back injecting process Type de document : texte imprimé Auteurs : Fabian Jakob, Auteur ; Joshua Pollmeier, Auteur ; Hans-Peter Heim, Auteur Année de publication : 2022 Article en page(s) : p. 141-151 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Compactage à chaud Composites -- Propriétés mécaniques Composites polymères auto-renforcés Essais dynamiques Flexion (mécanique) Mesure Polypropylène Rétro-injection Traction (mécanique) Index. décimale : 668.4 Plastiques, vinyles Résumé : In this research paper, the effects of the combined compacting and back-injection process to produce back-injected self-reinforced composites on the mechanical properties of the self-reinforced composites (SRCs) are investigated. For this purpose, the parameters barrel temperature, time of injection and holding pressure were varied for the back injection. Tensile and bending tests were carried out on the SRCs. The results show that the mechanical properties depend to a large extent on the process parameters. The measured tensile strength varies between approx. 186 and 86 MPa, the stiffness between approx. 3500 and 2000 MPa. The flexural strength is measured between approx. 75 and 5 MPa, the flexural modulus between approx. 5480 and 650 MPa. Flexural tests are more suitable for evaluation of the consolidation, as tensile tests cannot evaluate the adhesion of the fabric layers to each other in the SRCs. Microscopic examinations show that consolidation by the back-injected melt can lead to smaller cross-sections in the SRCs compared to an area that was not back-injected. At high barrel temperatures, melting of individual fabric layers can occur, which explains, among other things, the drop in the mechanical properties of the SRCs. Note de contenu : - EXPERIMENTAL STUDIES : Materials - Processing - Preparation - Measuring - RESULTS AND DISCUSSION : Tensile tests - Bending tests - Microscopy DOI : https://doi.org/10.1515/ipp-2021-4151 En ligne : https://drive.google.com/file/d/1kkSXyPEQ78nK8yPu9mf1D0xVuvl1oXSm/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37620 [article]

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Static, fatigue and stress-shielding analysis of the use of different PEEK based materials as hip stem implants / Mustafa Guven Gok in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 152-163 Titre : Static, fatigue and stress-shielding analysis of the use of different PEEK based materials as hip stem implants Type de document : texte imprimé Auteurs : Mustafa Guven Gok, Auteur Année de publication : 2022 Article en page(s) : p. 152-163 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eléments finis, Méthode des Matériaux -- Fatigue Matières plastiques -- Propriétés mécaniques Polyéther éther cétone Polymères en médecine Prothèses de hanche Statique Index. décimale : 668.4 Plastiques, vinyles Résumé : There is a possibility that hip joints may become dysfunctional due to age, wear or some accidents, and in this case they need to be replaced with hip implants. However, after conventional hip stem implantation, the load transferred to the bone usually decreases due to the high stiffness of the metallic (most commonly Ti6Al4V, CoCr or stainless steel) hip stem implant, and as a result, mineral loss occurs in the bone which weakens. On the other hand, PEEK is an advantageous material with its low cost, ease of production, corrosion resistance and biocompatibility. More importantly, it has the potential to be a good alternative to metallic materials in load-bearing bone replacements, thanks to its mechanical properties and density close to that of the bone. In this study, hip stem implants having three different commercial PEEK materials and four different metallic main spar designs were modeled. Their behavior under static and dynamic loading conditions was analyzed according to ASTM-F2996-20 and ISO-7206-4:2010 standard test methods, and the stress-shielding effect of hip stems modeled as implanted into the femur was simulated using ANSYS commercial finite element analysis software. According to the results, it was observed that CFP based hip stem models meet the five million life time criteria and increase the stress on the femur bone by up to 57%. Note de contenu : - MATERIALS AND METHODS : Hip stem implant design - Meshing and boundary conditions - Material properties - RESULTS AND DISCUSSION : Analysis of hip stems under static load - Fatigue analysis - Stress-shielding analysis - Table 1 : Mesh parameters of finite element modelling - Table 2 : Mechanical properties of the materials - Table 3 : Maximum equivalent (Von Mises) stresses on body and main spar of hip stem, and total weights of the hip stems - Table 4 : Minimum number of cycles, minimum safety factor and maximum equivalent alternating stress values DOI : https://doi.org/10.1515/ipp-2021-4133 En ligne : https://drive.google.com/file/d/1qjmiTwYMmyJlIf2FysRVP1dmA0nw6nT2/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37621 [article]

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Numerical simulation and experimental analysis for evaluating warpage of a 3D thin-walled polymeric part using the injection compression molding process / Deniz Sönmez in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 164-175 Titre : Numerical simulation and experimental analysis for evaluating warpage of a 3D thin-walled polymeric part using the injection compression molding process Type de document : texte imprimé Auteurs : Deniz Sönmez, Auteur ; Aysegül Akdogan Eker, Auteur Année de publication : 2022 Article en page(s) : p. 164-175 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse de variance En statistique, l'analyse de la variance (terme souvent abrégé par le terme anglais ANOVA : ANalysis Of VAriance) est un ensemble de modèles statistiques utilisés pour vérifier si les moyennes des groupes proviennent d'une même population. Les groupes correspondent aux modalités d'une variable qualitative (p. ex. variable : traitement; modalités : programme d'entrainement sportif, suppléments alimentaires ; placebo) et les moyennes sont calculés à partir d'une variable continue (p. ex. gain musculaire). Ce test s'applique lorsque l'on mesure une ou plusieurs variables explicatives catégorielles (appelées alors facteurs de variabilité, leurs différentes modalités étant parfois appelées "niveaux") qui ont de l'influence sur la loi d'une variable continue à expliquer. On parle d'analyse à un facteur lorsque l'analyse porte sur un modèle décrit par un seul facteur de variabilité, d'analyse à deux facteurs ou d'analyse multifactorielle sinon. (Wikipedia) Gauchissement (matériaux) Matières plastiques Moulage par injection-compression -- Défauts Simulation par ordinateur Taguchi, Méthodes de (Contrôle de qualité) Index. décimale : 668.4 Plastiques, vinyles Résumé : Injection compression molding (ICM) is a nontraditional hybrid injection molding (IM) process that has been utilized to mold a wide range of the latest and difficult-to-manufacture precision parts that require high dimensional accuracy and no residual stresses. This paper introduces the accurate calculation of warpage for ICM by numerical simulation via Moldflow software, and a comparison of results with products produced experimentally by ICM. To begin with, the process parameters of ICM were discussed based on the numerical simulations. The effects of process parameters, namely melt temperature, mold temperature, compression pressure, and compression distance, on warpage behavior of a molded 3D BJ356MO polypropylene (PP) (100MFI) part were investigated using Taguchi analysis. The obtained warpage results with optimum process parameters were compared with experimental measurements to test the validity of the simulation model of ICM. It was found that the numerical simulations of the ICM show good agreement with experimental measurements. Note de contenu : - FORMULATION OF THE INJECTION COMPRESSION MOLDING PROCESS : Continuity - Momentum - Energy - Viscosity model - Pressure-volume-temperature model - NUMERICAL SIMULATION - TAGUCHI PARAMETER DESIGN : Smaller is Better - RESULTS AND DISCUSSION : Effects of processing factors - Analysis of variance (ANOVA) - Numerical simulation results of ICM with optimal settings - EXPERIMENTAL STUDY - Table 1 : Review of past investigations on the injection compression molding (ICM) process - Table 2 : Physical properties of BJ356MOMoblen (100MFI) - Table 3 : Test factors and levels (injection compression molding [ICM]) - Table 4 : The signal-to-noise (S/N) ratio in Taguchi design - Table 5 : Analysis of variance (ANOVA) results for the warpage value for injection compression molding (ICM) DOI : https://doi.org/10.1515/ipp-2021-4197 En ligne : https://drive.google.com/file/d/1iu9g75bH0ioO7Lw9B4cT2-o_aP8YNrfb/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37622 [article]

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A molecular dynamics study on the mechanical properties of defective CNT/epoxy nanocomposites using static and dynamic deformation approaches / Sina Afsharhashemkhani in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 176-190 Titre : A molecular dynamics study on the mechanical properties of defective CNT/epoxy nanocomposites using static and dynamic deformation approaches Type de document : texte imprimé Auteurs : Sina Afsharhashemkhani, Auteur ; Majid Jamal-Omidi, Auteur ; Majid Tavakolian, Auteur Année de publication : 2022 Article en page(s) : p. 176-190 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres -- Défauts Composites à fibres de carbone -- Propriétés mécaniques Déformations (mécanique) Dynamique moléculaire Epoxydes Matériaux hybrides Simulation par ordinateur Index. décimale : 668.4 Plastiques, vinyles Résumé : In this paper, the mechanical behavior of epoxy polymer nanocomposite with continuous single-walled carbon nanotubes (SWCNT) with and without vacancy defects has been investigated based on two approaches of deformation, molecular mechanics (static) and molecular dynamics. In this regard, molecular simulation has been performed on the basis of the compass force field. In order to validate the research steps, the results obtained for pure epoxy polymer were compared with similar molecular dynamic simulations, which confirmed the simulation process. The research process proposed a method for controlling the symmetry of the system during equilibration with an asymmetric barostat. The Souza-Martins barostat was also used to apply loading and deformation control over a constant strain rate range. The results showed that in both deformation approaches (with and without calculating the contribution of kinetic energy), the presence of defects improved the transverse tensile and shear moduli, while the longitudinal tensile modulus decreased. Also, the improvement and decrease of the longitudinal tensile modulus and longitudinal shear modulus of the nanocomposite in comparison with the net polymer have been observed in both approaches, respectively. As a general result, it was observed that the contribution of kinetic energy has a major effect on the mechanical properties of pristine and defective nanocomposites. Note de contenu : - MD SIMULATION : Modeling of pristine and defective CNTs - Modeling of epoxy nanocomposites - Deformation simulation - Simulation details - RESULTS AND DISCUSSION : Mechanical properties of net polymer and nanocomposite - Static deformation approach - The role of deformation approach and defects - Table 1 : The specifications of the simulated cells after equilibration - Table 2 : Mechanical properties of CNT/epoxy nanocomposite with and without defects in nanotube by static strain-constant method - Table 3 : Mechanical properties of CNT/epoxy nanocomposite with and without defects in nanotube by dynamic method DOI : https://doi.org/10.1515/ipp-2021-4182 En ligne : https://drive.google.com/file/d/1B_mT1VPE2UItGd2CJGSHATIL5NngCjeo/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37623 [article]

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Microstructural, functional groups and textural analysis of expanded polyethylene reinforced polystyrene composites with recycled aluminium as ternary component / Sulyman A. Abdulkareem in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 191-199 Titre : Microstructural, functional groups and textural analysis of expanded polyethylene reinforced polystyrene composites with recycled aluminium as ternary component Type de document : texte imprimé Auteurs : Sulyman A. Abdulkareem, Auteur ; Maryam T. Abdulkareem, Auteur ; Joshua O. Ighalo, Auteur ; Adewale George Adeniyi, Auteur ; Mutiu K. Amosa, Auteur Année de publication : 2022 Article en page(s) : p. 191-199 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aluminium L'aluminium est un élément chimique, de symbole Al et de numéro atomique 13. C’est un métal pauvre, malléable, de couleur argent, qui est remarquable pour sa résistance à l’oxydation13 et sa faible densité. C'est le métal le plus abondant de l'écorce terrestre et le troisième élément le plus abondant après l'oxygène et le silicium ; il représente en moyenne 8 % de la masse des matériaux de la surface solide de notre planète. L'aluminium est trop réactif pour exister à l'état natif dans le milieu naturel : on le trouve au contraire sous forme combinée dans plus de 270 minéraux différents, son minerai principal étant la bauxite, où il est présent sous forme d’oxyde hydraté dont on extrait l’alumine. Il peut aussi être extrait de la néphéline, de la leucite, de la sillimanite, de l'andalousite et de la muscovite. L'aluminium métallique est très oxydable, mais est immédiatement passivé par une fine couche d'alumine Al2O3 imperméable de quelques micromètres d'épaisseur qui protège la masse métallique de la corrosion. On parle de protection cinétique, par opposition à une protection thermodynamique, car l’aluminium reste en tout état de cause très sensible à l'oxydation. Cette résistance à la corrosion et sa remarquable légèreté en ont fait un matériau très utilisé industriellement. L'aluminium est un produit industriel important, sous forme pure ou alliée, notamment dans l'aéronautique, les transports et la construction. Sa nature réactive en fait également un catalyseur et un additif dans l'industrie chimique ; il est ainsi utilisé pour accroître la puissance explosive du nitrate d'ammonium. Composites -- Analyse Groupes fonctionnels Matériaux -- Texture Microstructures -- Analyse Polyéthylène Polymères expansés Polystyrène Index. décimale : 668.4 Plastiques, vinyles Résumé : The aim of this study is to utilise recycled aluminium, expanded polyethylene (EPE) and expanded polystyrene (EPS) to develop a ternary composite. The study was a preliminary investigation into the microstructural, functional groups and textural properties of the novel material. The material was characterised by Fourier Transform Infra-Red Spectroscopy (FTIR), Scanning Electron Microscopy with Energy Dispersive X-ray analysis (SEM-EDX) and Branueur-Emmet-Teller analysis (BET). The shifts in the FTIR peaks for each of the polymer feedstock in comparison with the binary composite indicated chemical interactions between them. For the ternary composites, there were shifting of peaks as the proportion of the aluminium increased in the composites, suggesting the influence of aluminium on the curing process. Beyond 20% Al filler, there were no significant functional group changes in the composite. SEM revealed that an increase in aluminium filler percentage led to better interfacial adhesion and dispersion. BET revealed that the blend of polystyrene and powdered EPE reduces the surface area, while the introduction of the aluminium particles within the range observed increases the surface area of the hybrid composites formed. As the dispersion of aluminium increased, pore volume increased while pore size decreased. Note de contenu : - METHODOLOGY : Materials - Preparation of the composites - Functional group analysis - Microstructural analysis - Textural analysis - RESULTS AND DISCUSSION : Analysis of solvated polystyrene - Analysis of solvo-thermally converted EPE to powder - Analysis of PBR/powdered EPE binary composite - Processed polystyrene/EPE filled with aluminium powder - Table 1 : EDX Analysis for solvo-thermally converted EPE to powder - Table 2 : Summary of BET analysis results DOI : https://doi.org/10.1515/ipp-2022-4068 En ligne : https://drive.google.com/file/d/1GLOCcu5e9PImtbK1PxU5ha212uvwj7v6/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37624 [article]

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Investigation of the adhesive strength in a combined compaction and back-injection process to produce back-injected self-reinforced composites (SRCs) / Fabian Jakob in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 200-209 Titre : Investigation of the adhesive strength in a combined compaction and back-injection process to produce back-injected self-reinforced composites (SRCs) Type de document : texte imprimé Auteurs : Fabian Jakob, Auteur ; Marcel Gothe, Auteur ; Fabian Gansiniec, Auteur ; Hans-Peter Heim, Auteur Année de publication : 2022 Article en page(s) : p. 200-209 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion Compactage Composites à fibres Composites polymères auto-renforcés Polypropylène Rétro-injection Index. décimale : 668.4 Plastiques, vinyles Résumé : This publication investigates the adhesion between an injection molded component and a self-reinforced composite (SRC) produced in a combined compaction and back-injection process to produce back-injected self-reinforced composites. To study the influence of the process, the parameters barrel temperature, time of injection, and tool temperature were varied. In addition, samples were taken at different positions along the flow path. In light of the orthotropic material behavior of SRCs, investigations were conducted to see whether different loading cases lead to different mechanical behavior. Shear-off and pull-off tests revealed a different strength as a function of the loading type. In the shear-off tests, a mean strength of 11.37 MPa was recorded over the entire test series, while the measured mean strength in the pull-off tests is considerably lower, 4.04 MPa. The type of failure is determined with the aid of SEM images, and the influence of the microstructure of the thermoplastic fibre materials on the adhesion is set out. It is shown that, as of a sufficiently high level of adhesion, failure occurs within the fibres. Note de contenu : - EXPERIMENTAL STUDIES : Materials - Processing - Preparation - Measuring - RESULTS AND DISCUSSION : Shear-off tests - Pull-off tests - Microscopic observations - Table 1 : Experimental setup for shear-off and pull-off tests DOI : https://doi.org/10.1515/ipp-2022-4205 En ligne : https://drive.google.com/file/d/13SX3M3UiFk-GU9y31gFAp-u48kddODJ5/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37625 [article]

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Extraction and characterization of Alfa fibers and their use to produce Alfa/wool woven fabrics for composite reinforcement / Kawtar Lamhour in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 210-225 Titre : Extraction and characterization of Alfa fibers and their use to produce Alfa/wool woven fabrics for composite reinforcement Type de document : texte imprimé Auteurs : Kawtar Lamhour, Auteur ; Marwane Rouway, Auteur ; Ouahiba Mrajji, Auteur ; Abdeslam Tizliouine, Auteur ; Lhaj El Hachemi Omari, Auteur ; Hayat Salhi, Auteur ; Nabil Chakhchaoui, Auteur ; Omar Cherkaoui, Auteur ; Mohamed El Wazna, Auteur Année de publication : 2022 Article en page(s) : p. 210-225 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Composites à fibres naturelles Fibres d'alfa Fibres textiles -- Propriétés mécaniques Laine Tissés Traitement chimique Index. décimale : 668.4 Plastiques, vinyles Résumé : Because of their appealing properties, such as biodegradability, high basic stiffness, low density, and low cost, natural fibers have begun to be used in a variety of applications. In comparison to synthetics, they are also reusable. The aim of this work is to develop new woven materials made of wool and Alfa fibers (Stipa-tenacissima). The extraction of Alfa fibers was achieved via alkaline treatment. The chemical composition, mechanical and physical properties of the extracted fibers were determined. Wovens were produced using the weaving of taffetas technique. This study presents a chemical, physical, morphological and mechanical characterization of Alfa/wool yarns and fabrics. The results show that the fabric made of fibers treated with 2 mol concentration of NaOH presents the greatest morphological structure and a higher degree of crystallinity due to the reorganization of the molecular chains that results in a better orientation of the fibers compared to other concentrations. On the other hand, the results of the tensile test show that the Young’s modulus of the Alfa/Alfa woven fabric is 8 ± 1.157 MPa in the weft direction, compared to the Alfa/wool woven fabric which has 6.06 ± 0.196 MPa and wool/wool woven fabric with 14.10 ± 1.369 MPa. Note de contenu : - Materials and methods - Results and discussion : Mechanical properties of Alfa and wool yarns - Physical properties of woven materials - Mechanical properties of woven materials - Table 1 : Weights of the initial and extracted Alfa fibers and the yield of the extraction - Table 2 : Fibers diameters - Table 3 : Degree of crystallinity from XRD data - Table 4 : Water absorption coefficient of different natural fibers and of fiber and fabric samples produced in this work - Table 5 : Mechanical properties of Alfa and wool yarns - Table 6 : Composition of woven fabrics - Table 7 : Physical properties of woven fabrics. - Table 8 : Average results of mechanical properties of wovens in the weft direction - Table 9 : Comparison of mechanical properties for fabrics and yarns in the weft direction - Table 10 : Comparison of mechanical properties of yarns DOI : https://doi.org/10.1515/ipp-2022-4199 En ligne : https://drive.google.com/file/d/1NNIGeTq8aViWxlIVPaYLF1I07Mp2JrMB/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37626 [article]

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Effect of rubber reinforcement with filler on extrusion flow and extrudate swell / Hidenori Hirai in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 226-235 Titre : Effect of rubber reinforcement with filler on extrusion flow and extrudate swell Type de document : texte imprimé Auteurs : Hidenori Hirai, Auteur ; Hideyuki Uematsu, Auteur ; Yuji Sakai, Auteur ; Shuichi Tanoue, Auteur Année de publication : 2022 Article en page(s) : p. 226-235 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caoutchouc styrène-butadiène Charges (matériaux) Dioxyde de titane Elastomères -- Extrusion Extrusion capillaire Mesure Rhéologie Silice La silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux. La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...). Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale. Viscoélasticité Index. décimale : 668.4 Plastiques, vinyles Résumé : The extrusion process of silica rubber through a chemical reaction is unstable, and the flow mechanism in the extruder is still unclear. In this study, styrene-butadiene rubber (SBR) has been chosen as the matrix and the reinforcing effects of two different kinds of fillers, silica and titanium dioxide, have been investigated on SBR. Additionally, the effect of the properties of the SBR/filler composites on extrudate swelling has been examined. The reinforcing effect of the filler was confirmed by dynamic viscoelasticity, and the swell ratio was measured using a capillary rheometer. The results suggest that titanium dioxide has no reinforcing effect, as there is no interaction between titanium dioxide and the molecular structure of SBR. In contrast, there was a significant interaction between silica and SBR. It was found that the bound rubber, which is an SBR gel with restricted molecular chains, causes a reduction in the swell ratio, and this reduction effect is larger than that caused by filling the filler in the matrix. Furthermore, it was observed that this bound rubber deforms during flow and affects the extrudate swell phenomenon. Note de contenu : - EXPERIMENTAL : Materials - Dynamic viscoelasticity measurement - Morphology of filler in the rubber - Capillary extrusion - Bound rubber measurement - RESULTS AND DISCUSSION : Dynamic viscoelasticity and morphology - Effect of filler on capillary extrusion characteristics - Effect of bound rubber on capillary extrusion characteristics - Table : Composition of the compounds DOI : https://doi.org/10.1515/ipp-2022-4153 En ligne : https://drive.google.com/file/d/1vNb4ggmDR9uDhqNpZ1hISFfoI07hKyCf/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37627 [article]

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