Polymer Composites (Polymer Compos )

Publisher: Society of Plastics Engineers, John Wiley and Sons

Description

Published six times per year, Polymer Composites is the foremost engineering & scientific journal covering the fields of reinforced plastics and polymer composites. In publication since 1980, Polymer Composites offers detailed applied developments of specific interest long before they become commercial realities.

Impact factor 1.48

  • 5-year impact
    1.58
  • Cited half-life
    6.00
  • Immediacy index
    0.23
  • Eigenfactor
    0.01
  • Article influence
    0.39
  • Website
    Polymer Composites website
  • Other titles
    Polymer composites (Online), Polymer composites
  • ISSN
    1548-0569
  • OCLC
    43437991
  • Material type
    Document, Periodical, Internet resource
  • Document type
    Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

John Wiley and Sons

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • See Wiley-Blackwell entry for articles after February 2007
    • On personal web site or secure external website at authors institution
    • Deposit in institutional repositories is not allowed
    • JASIST authors may deposit in an institutional repository
    • Non-commercial
    • Pre-print must be accompanied with set phrase (see individual journal copyright transfer agreements)
    • Published source must be acknowledged with set phrase (see individual journal copyright transfer agreements)
    • Publisher's version/PDF cannot be used
    • Articles in some journals can be made Open Access on payment of additional charge
    • 'John Wiley and Sons' is an imprint of 'Wiley'
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The article deals with finite element study of 1–3 composites made of piezoceramic fibers embedded in epoxy. The study focuses on evaluation of effective properties of piezoelectric fiber composites using representative volume element method. The physical properties deduced are further used for analyzing sensing and actuation characteristics of unimorph cantilever beam. K0.5Na0.5NbO3-LiSbO3(KNN-LS), KNNLS doped with 1 wt% CaTiO3 [KNN-LS-CT (1 wt%)], K0.475Na0.475Li0.05(Nb0.92Ta0.05Sb0.03)O3 (KNLNTS), 0.885 (Bi0.5Na0.5)TiO320.05(Bi0.5K0.5)TiO320.015 (Bi0.5Li0.5)TiO3 20.05 BaTiO3(BNKLBT) and lead zirconate titanate (Pb[ZrxTi12x]O3) (PZT) are embedded in epoxy matrix to form 1–3 piezocomposites. K0.475Na0.475Li0.05(Nb0.92Ta0.05 Sb0.03)O3 (KNLNTS) shows excellent performance than other composites under study. It can be concluded that KNLNTS (lead-free piezoelectric material) is a potential candidate which can replace lead based PZT for smart structure applications.
    Polymer Composites 01/2015;
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    ABSTRACT: The effects of the ultrasonic irradiation on the colloidal stability of B4C and PbO fillers suspended in low-viscosity hardener and the subsequent preparations of the epoxy composites were studied. The ultrasonic dispersion ensured a long-period colloidal stability of the filler particles with their initial particle size levels in liquid hardener. For less hard PbO microparticles, the particle size decreased with an increase in ultrasonication time by fragmentation. The effectiveness of ultrasonication was remarkable for the nanoparticles owing to the presence of greater surface area. FT-IR measurements revealed that a particle-to-hardener interaction became stronger. Virtually, this interaction was critical to yield both the homogeneous distribution and strong interface of the B4C and PbO particles in the epoxy matrices, resulting in the improved mechanical and thermal performances of the B4C/epoxy and PbO/epoxy composites. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 01/2015;
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    ABSTRACT: The engineering aspects, which are associated with the development of nanocomposites, involve in either final properties or processability of nanocomposites. Both are affected by the distribution of nanofiller in the matrix and by the aspect ratio of the nanofiller. A nanofilled thermosetting resin can be exploited as a matrix for continuous fibers when the alignment of a high aspect ratio nanofiller is achieved, and in this case, a hierarchical composite is obtained. In this study, a new procedure for the alignment of nanofillers in a thermosetting matrix is proposed. The two-step approach is based on (i) the alignment of nanofillers (carbon nanotubes, graphene, etc.) in thermoplastic fibers by a fiber spinning process and (ii) the use of these nanocomposite fibers as a carrier to bring aligned nanofillers into a reactive thermosetting resin. These fibers, soluble in the thermosetting resin, release the nanofillers orientated according to the direction in which fibers are positioned, even after the curing of the matrix. The proof of concept is demonstrated by producing melt spun polyethylene terephtalate (PETg) fibers filled with graphene nanoplatelets (GNP) and multiwall carbon nanotubes (MWCNT) with a very high filler content (up to 10 wt%) in view of producing a hierarchical composite. POLYM. COMPOS., 2015. © 2015 Society of Plastics Engineers
    Polymer Composites 01/2015;
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    ABSTRACT: The article surveyed the fabrication of polystyrene (PS)/nano-CaCO3 foams with unimodal or bimodal cellular morphology from extrusion foaming using supercritical carbon dioxide (sc-CO2). In order to discover the factors influenced the cell structure of PS/nano-CaCO3 foams, the effects of die temperature, die pressure, and nano-CaCO3 content on cell size, density, and morphology were investigated detailed. The results showed that the nano-CaCO3 content affected the cell size and morphology of PS/nano-CaCO3 foams significantly. When the die temperature and pressure was 150°C and 18 MPa, respectively, the foams with 5 wt% nano-CaCO3 exhibited the unimodal cellular morphology. As the nano-CaCO3 content increased to 20 wt%, a bimodal cell structure of the foams could be obtained. Moreover, it was found that the bimodal structure correlated more strongly with the pressure drop than the foaming temperature. The article revealed that unimodal or bimodal cellular morphology of PS/nano-CaCO3 foams could be achieved by changing the extrusion foaming parameters and nano-CaCO3 content. POLYM. COMPOS., 2015. © 2015 Society of Plastics Engineers
    Polymer Composites 01/2015;
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    ABSTRACT: Zinc oxide (ZnO) nanoparticles were successfully prepared by a one-step precipitation reaction in an aqueous solution of zinc acetate and sodium hydroxide with stearic acid (SA) as the modifying agent. Hydrophilic composites of poly(ethylene terephthalate) (PET), poly(ethylene glycol), and ZnO nanoparticles were prepared further by in situ polymerization. The surface modification of ZnO and the microstructure and properties of prepared nanoparticles were investigated by relative contact angle measurements (CA), Fourier transform infrared spectroscopy, X-ray diffraction (XRD), scanning electron microscopy, and thermogravimetric analysis (TGA). Measurements of CA and XRD indicated that the surface-treated ZnO was hydrophobic and had a significant improvement in crystallinity with SA. Compared with the nanocomposites filled with the pure ZnO, the modified ZnO exhibits a better dispersion in PET–PEG matrix. TGA results showed that the presence of modified ZnO nanoparticles can improve the thermal stability of PET–PEG matrix. CA and low field nuclear magnetic resonance methods were used to investigate the hydrophilic behavior of nanocomposites. The results revealed that modified nanoparticles had a positive effect on the bound water absorption. A simple model for the interactions between ZnO, SA, and PET–PEG matrix was proposed. POLYM. COMPOS., 2015. © 2015 Society of Plastics Engineers
    Polymer Composites 01/2015;
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    ABSTRACT: This article investigated the rheological behavior of epoxy-amine resins/carbon nanofibers (CNFs) dispersions and its correlation with the nanofiller morphology. The use of the reactive diluent 1,4-butandiol diglycidyl ether into the tetraglycidylmethylene dianiline liquid epoxy precursor has proven to be a key in reducing the viscosity of the epoxy matrix. The effect of nanoadditives on the oscillatory shear behavior of the un-cured epoxy precursor matrix in the liquid state was studied. These nanofillers consist of CNFs as made and after high heat treatment temperature. The inclusion of as made CNFs at 0.5 wt% content had no influence on the Newtonian rheological behavior of the epoxy precursor. The morphological investigation indicated that the as made nanofibers showed a tendency to bend and had functionalized surfaces which determined a large epoxy layer thickness around the nanofibers. Due to these events, the as made CNFs were further apart in the epoxy liquid precursor and, consequently, the rheological percolation network at 0.5 wt% was not formed. Conversely, when the heat-treated CNFs were used, the rheological results of the epoxy/0.5 wt% CNF dispersion indicated a transition from liquid-like to solid-like behavior at low frequencies showing that in this case the 0.5 wt% content of heat-treated CNFs is higher than the rheological percolation threshold. Indeed, the heat-treated CNFs exhibited an increase in their “equivalent length” and a smaller thickness of the epoxy layer around the nanofibers so that these heat-treated CNFs could easily form a percolation network. POLYM. COMPOS., 2015. © 2015 Society of Plastics Engineers
    Polymer Composites 01/2015;
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    ABSTRACT: The mechanical performance of composite materials has been related to a wide range of factors. The complexity of analysis lays on the fact that any single variation normally affects many characteristics or properties of the composite material. For this reason, different theoretical and experimental characterizations should be considered. In this work the internal structure, interactions and fracture surfaces of PP-based composites reinforced with quartz particles are investigated. Particle size distributions, rheological measurements and multifractal spectra suggest favorable filler dispersion into the PP matrix. A yield strength model and rheological data evidence low internal interactions. In addition, these composites characteristics could promote the effective activation of energy consumption mechanisms improving the material toughness. The fracture surfaces analysis allows correlating fractography, multifractal spectra and material toughness. However, the experimental procedure of multifractal theory should be improved to define the most sensitive parameter for fractographic studies. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 12/2014;
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    ABSTRACT: In this study, mechanical performances of extruded foamed and unfoamed PVC-wood composites, reinforced with continuous glass fibers, were investigated. A specially designed die was used to incorporate the continuous glass rovings into the extruded rectangular shaped profiles. The experimental variables were the number of continuous glass rovings (0–2-4) and the presence or absence of the chemical foaming agent. Three point bending tests as well as density measurements were conducted to evaluate the mechanical properties and density reduction upon foaming. The results showed that the flexural strength of the reinforced profiles was significantly increased, as 58% increase in flexural strength was noticed for wood plastic composites (WPCs) reinforced with four glass rovings. The highest density reduction (14%) was observed upon foaming for profiles reinforced with four glass rovings, while resulting in strength deterioration. Moreover, results revealed the remarkable effect of reinforcement on preserving mechanical performance of the foamed samples, as 88% increase in flexural strength of the foamed samples reinforced with four glass rovings was observed compared with the unreinforced foamed ones. For the foamed WPCs reinforced with even two glass rovings, the higher specific strength values were also noticed compared to the unreinforced and unfoamed samples. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 12/2014;
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    ABSTRACT: In this research, polycarbonate (PC) composites with short glass fiber (SGF) and short carbon fiber (SCF) hybrid fiber reinforcements were compounded by single screw extruder and specimens were prepared by injection molding machine. This article aims to investigate the mechanical properties of PC hybrid composites, by means of the experimental and the theoretical methods. The composites were subjected to tensile test. Experimental results showed the improvements in tensile strength and modulus by increasing the SCF content of the hybrid composite. The theoretical tensile strength was predicted based on Kelly–Tyson model and rule of hybrid mixture. Kelly–Tyson model showed to be a good approximation to predict the tensile strength of composite. When the SCF was replaced by milled carbon fiber (MCF) to form a PC/SGF/MCF hybrid system, poorer mechanical properties are reported due to the weaker interfacial adhesion between MCF and PC, as proven by the scanning electron microscopy. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 12/2014;
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    ABSTRACT: This research emphasizes on the development of highly filled graphene-polybenzoxazine composites and investigates thermal, electrical, and mechanical properties of the obtained composites for bipolar plate applications. The composition of graphene loading was achieved to be in the range of 10–60 wt%. The experimental results revealed that at the maximum graphene content of 60 wt% (44.8 vol%) in the polybenzoxazine, storage moduli at room temperature of the composites were considerably enhanced with the amount of the graphene, that is, from 5.9 GPa of the neat polybenzoxazine to about 25.1 GPa at 60 wt% of graphene. Glass transition temperatures (Tg) of the obtained composites were observed to be 174–188°C and the values substantially increased with increasing the filler contents. At 60 wt% of graphene content, thermal conductivity, as high as 8.0 W/mK, is achieved for the graphene-filled polybenzoxazine. Furthermore, the flexural modulus and flexural strength of the composites were found to be as high as 18 GPa and 42 MPa, respectively. Water absorption of graphene filled-composite is relatively low with the value of only about 0.06% at 24 h of water immersion. Additionally, electrical conductivity was measured to be 357 S/cm at maximum loading of the graphene. Therefore, the graphene-filled composites based on polybenzoxazine are highly attractive as bipolar plates for polymer electrolyte membrane fuel cells applications. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 12/2014;
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    ABSTRACT: The development and application of damage tolerance analysis of aircraft repair structures needs to keep pace with the growing of aircraft structural aging phenomena. The low-velocity impact performance of scarf-repaired structures is investigated experimentally in this article. The scarf-repaired plates and the virgin plates were impacted using drop-weight test machine at different impact energies. The time histories of impact force were recorded, and ultrasonic C-scan technology was used to inspect the internal damage of the specimens. Permanent indentation, damage size, dissipated energy and the compression strength (strain) of these plates after impact are discussed contrastively. The results show that the impact resistance and compression behavior performances of prepreg scarf-repaired plates are better than the virgin plates, while the performances of wet layup scarf repaired are the worst. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 12/2014;
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    ABSTRACT: The newly prepared LaMnO3 was introduced as a novel perovskite composite metal oxide catalyst for the first time to improve the flame retardancy of flame-retarded (FR) polypropylene with intumescent flame-retardant (IFR) system consisting of ammonium polyphosphate (APP), pentaerythritol (PER), and melamine (MA). The synergistic effects of LaMnO3 catalyst on the performance of IFR PP composites as well as the corresponding catalytically synergistic FR mechanism were investigated. The experimental results show that the incorporated LaMnO3 catalyst plays an excellently catalytic and synergistic part in improvement of the flame retardancy of FR PP system. Compared with FR system without LaMnO3, the incorporation of only 0.5 wt% LaMnO3 into PP FR system could obviously improve the UL-94 level from failure to V-0 rating and decrease the micro-scale calorimetry parameters peak heat release rate and heat release capacity. The remarkable improvement in flammability can be ascribed to the catalytic carbonization effect of LaMnO3 on the intumescent flame retardant PP system. The incorporation of appropriate amount of LaMnO3, on one hand, could improve the thermal stability of FR PP material, and on the other hand, could also act as nuclei to induce formation of the continuous, compact and smooth condensed phase intumescent charred layer with radialized spherulite-like structure. As a result, the char yield and also the quality of the formed condensed phase charred layers are correspondingly enhanced remarkably, which is beneficial to improvement of the FR properties. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 12/2014;
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    ABSTRACT: Sodium-montmorillonite nanoclay was modified with octadecylamine and compounded with natural rubber (NR) by dry mixing method. The effects of organoclay loading level on mechanical properties, thermal–mechanical behavior, and heat build-up of NR/organoclay nanocomposites were investigated. Temperature scanning stress relaxation technique was used to characterize the thermal–mechanical behavior of the composites. The morphological properties were assessed by X-ray diffraction and transmission electron microscopy. Loading levels of organoclay below 5 phr gave improved mechanical properties and heat build-up, along with exfoliated clay structure in the nanocomposites. On the other hand, with loading levels above 7 phr the organoclay tended to agglomerate, and X-ray diffraction revealed an intercalated structure. In these cases, the excess residual organoclay caused significantly increased stress relaxation and heat build-up. Unmodified sodium-montmorillonite as filler did not significantly affect the mechanical and heat build-up properties of NR vulcanizates. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 12/2014;
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    ABSTRACT: Poly(methylmethacrylate) (PMMA)/montmorillonite (MMT) nanocomposites were prepared by in situ suspension polymerization. MMT was previously organically modified by different modification agents [dioctadecyl dimethyl ammonium chloride (DODAC) and methacrylatoethyltrimethyl ammonium chloride (MTC)] and different modification method (cation-exchange reaction and grafting reaction), ultimately giving rise to five kinds of organomodified MMT (OMMT). The structure of the OMMT was studied by Wide angle X-ray diffraction (WAXD) and Fourier transform infrared spectroscopy (FTIR). Meanwhile, the structure of the PMMA/MMT nanocomposites microspheres was also investigated by WAXD. The molecular weight of the polymers extracted from PMMA/MMT nanocomposites was measured by gel permeation chromatograph (GPC). Finally, the mechanical properties of these PMMA/MMT nanocomposites were studied in detail. It was found that large interlayer spacing (d001) of OMMT could not entirely ensure an exfoliated structure of resultant PMMA/MMT nanocomposites, while OMMT with relative small d001 could still yield exfoliated structure as long as the compatibility between OMMT and polymer matrix was favorable. In addition, the results of mechanical investigation indicated that the compatibility between OMMT and PMMA matrix turned out to be the dominant factor deciding the final mechanical properties of PMMA/MMT nanocomposites. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 12/2014;