Polymer Composites (Polymer Compos )

Publisher: Society of Plastics Engineers, John Wiley & 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 & 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
    • Not allowed on institutional repository
    • 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-Blackwell'
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: In this work, the positive-temperature-coefficient (PTC) effect of resistivity of low density polyethylene/graphite powder (45%) composites (LDPE/GP) in the presence of graphene before and after crosslinked was comparatively investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy, Raman spectrum, and resistivity-temperature test. The composites showed the repeatability of the PTC effect with heating cycles and a certain improvement in the room temperature resistivity. After crosslinked, the composites presented a higher PTC trip temperature at about 140°C than pure LDPE (Tm = 112°C), and stronger PTC intensity than room temperature resistivity (over 5 orders of magnitude). The results from DSC, XRD, and Raman spectrum indicated that the addition of graphene resulted in the gradual enhancement in the crystallization of LDPE matrix, which was the origin of the improvement of the PTC behavior of the composites. As a result, we could conclude that the additional conducting filler could improve the PTC effect of the conducting composite system. POLYM. COMPOS., 35:1453–1459, 2014. © 2013 Society of Plastics Engineers
    Polymer Composites 08/2014; 35(8).
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    ABSTRACT: Maghemite (γ-Fe2O3)-poly(methyl methacrylate) (PMMA) nanocomposites were prepared by grafting 3-(trimethoxy-silyl) propyl methacrylate on the surface of maghemite nanoparticles, this process being followed by methyl methacrylate radical polymerization. Three different hybrids with 0.1, 0.5, and 2.5 wt% of maghemite nanoparticles were studied. The results indicate that these nanocomposites consist of a homogeneous PMMA matrix in which maghemite nanoparticles with a bimodal size distribution are embedded. The existence of covalent bonding between silane monomers and atoms on the maghemite surface was evidenced. AFM images showed a clear increase in surface roughness for increasing maghemite content. The thermal stability of PMMA-maghemite nanocomposites is higher than that of pure PMMA and increases for increasing maghemite content. The results of our theoretical studies indicate that the electron density in the maghemite nanoparticle is not homogenous, the low electron density volumes being supposed to be radical trappers during PMMA decomposition, thus acting as a thermal stabilizer. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: The sulfonation of reduced graphene oxide (SRGO) by the aryl diazonium salt of sulfanilic acid was focused to examine the enhancement effect on the mechanical properties of poly styrene-acrylonitrile (SAN). The SAN was prepared by surfactant-free emulsion copolymerization using a cationic initiator. By mixing sulfonated RGO (SRGO) into the SAN polymer matrix, positively-charged SAN particles were attracted to the negatively-charged surfaces of SRGO sheets via electrostatic interactions. The storage modulus of SAN-SRGO increased to 46% at 4 wt% SRGO loading. This improvement is attributed to strong interactions between sulfonated groups on the surface SRGO and the nitrile groups of SAN. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: This article presents an experimental study of bending properties of multilayer-connected biaxial weft knitted (MBWK) fabrics-reinforced composites made with carbon fibers. Three types of composites are used in bending test, which are three-layer-connected biaxial weft knitted fabric-reinforced composite, four-layer-connected biaxial weft knitted fabric-reinforced composite and five-layer-connected biaxial weft knitted fabric-reinforced composite. Two-way ANOVA analyzing method was used to deal with whether the carbon fiber volume fraction and the cutting direction have significant effect on the bending strength of the MBWK fabrics-reinforced composites. Failure analysis is also available by means of samples debris examination to identify the failure mode. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: Leather tanning processes cause environmental impact as a result of the generation of solid waste, wastewater, and release of gases. The improper disposal of such waste may promote the oxidation of chromium, for example, changing it from chromium (III) to chromium (VI), in which becomes extremely toxic. In this study, composites were prepared from natural rubber (NR) with industrial leather waste (Lw), varying the waste amount from 20 to 80 phr, with the aim of recycling leather waste. The microstructure, mechanical properties and rheological properties of composites were investigated. The results showed that Lw increased tensile strength and hardness, with good reproducibility, and uniformity of residuals distributed as fillers (miscible materials). These properties indicate that this composite material can be used as raw material for the manufacture of shoes, bags, upholstery, etc. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: Novel fully biodegradable composites were successfully prepared by solution casting. The mechanical properties, chemical structure and intermolecular interaction, the melting and crystallization behaviors, and crystalline morphologies of the Tannic acid (TA)/PHBV composites were investigated. Uniaxial tensile mechanical testing results show that both tensile strength and fracture toughness were enhanced. Fourier transform infrared (FTIR) results confirm the intermolecular hydrogen bonding interactions in composites. Differential scanning calorimetric (DSC) studies show that there is a significant increase in Tg and Tcc, and a decrease in melting temperature of TA/PHBV composites. The crystal growth behaviors and crystalline morphologies results were showed that with the addition of TA component, the size of PHBV spherulites reduces, and the number of PHBV spherulites increases significantly. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
  • Soghra Ramazani, Mohammad Karimi
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    ABSTRACT: The morphological appearance, fiber diameter, and structure of poly(ε-caprolactone) (PCL) nanofibers produced by the electrospinning process were studied in the presence of different amounts of graphene oxide (GO) with different oxidation levels. Scanning electron microscope micrographs of electrospun fibers showed that the average fiber diameter decreases in the presence of GO with different loading and oxidation levels. The loading level of GO especially higher than 0.3 wt% was influential in decreasing the diameter of PCL electrospun fibers rather than oxidation level. Contact angle, infrared spectroscopy, and conductivity measurements on graphite oxide (GtO) samples, as well as rheological, conductivity, and surface tension experiments on PCLGO solutions were performed to describe the role of GO in the significant reduction of fiber diameter. It was found that three factors are involved in generating a driving force for more stretching of the electrospinning jet. One is the viscosity reduction of PCLGO solution, which intensifies by more GO content and less GO oxidation level. The second is solution conductivity which enhances by GO loading and the third is the charge relaxation time of the spinning solution, which grows with increasing the oxidation level of GO as well as the GO content. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Epoxy-clay nanocomposites based on diglycidyl ether of bisphenol A (DGEBA) epoxy reinforced with 2 wt% of four different types of clay were prepared by high shear mixing (HSM) technique. The resultant nanocomposites were investigated to determine the effects of clay addition and clay types on their mechanical, thermal, and physical properties. The XRD and TEM analyses revealed that good dispersions of nanoclay within the epoxy matrix have been achieved especially for the samples prepared with I.30E clay where a combination of disordered intercalated and exfoliated morphology was observed. The structure of samples synthesized with other types of clay was dominated by intercalated morphologies. The tensile results illustrated that the nanocomposite containing I.30E clay has the best mechanical properties as compared to other nanocomposites. This is mainly due to better dispersion of I.30E nanoclay in the epoxy matrix for this nanocomposite. The increase or decrease in the glass transition temperatures of nanocomposites were found to be dependent on the type of clay used. The effect of clay addition on the barrier properties was examined using water exposure test which demonstrated that the addition of 2% of I.30E and C10A clays resulted in 60% reduction in diffusivity. Noticeable reduction in maximum water uptake was also observed for all nanocomposites. The improvement in these physical properties was attributed to the tortuosity effect, where water molecules have to move around clay layers during diffusion in nanocomposites. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: The main motivation of the present work was to fabricate novel multifunctional polymer-based nanocomposites. The nanocomposites embedded with multi-walled carbon nanotube-boehmite (MWCNT-boehmite) were prepared via hot pressure casting technique. The MWCNT coated with boehmite were synthesized by hydrothermal synthesis. Subsequently, as-prepared MWCNT-boehmite was added into the phthalonitrile-terminated polyarylene ether nitriles (PEN-t-CN) matrix in order to benefit from the synergetic effect of MWCNT and boehmite. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) X-ray diffraction (XRD), and Fourier transform infrared (FTIR) were employed to confirm the existence of MWCNT-boehmite in our article. Furthermore, the structures, fracture morphologies, thermal, mechanical and dielectric properties of the nanocomposites were investigated, respectively. SEM images indicated that the MWCNT-boehmite was homogeneously dispersed in the polymer, which acted as an essential factor to ensure good physical properties. The TGA analysis showed that the incorporation of MWCNT-boehmite enhanced the thermal stability of the nanocomposites with initial degradation temperature (Tid) increasing from 458 to 492°C, while that of the pure PEN-t-CN was 439°C. The mechanical testing proved that significant enhancement of mechanical properties has been achieved. The tensile strength of PEN-t-CN/MWCNT-boehmite composites with 3 wt% MWCNT-boehmite reached the maximum (78.33 MPa), with a 41.7 % increase compared to the pure polymer. More importantly, the unique dielectric properties were systematically discussed and the results demonstrated that dielectric properties exhibited little dependency on frequency. For the incorporation of hybrid filler, the positive impact of MWCNT-boehmite hybrid material resulted in polymer-based nanocomposites with enhanced physical properties. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: In this study, the hybrid composites were prepared by stacking jute/PP nonwoven and flax/MAPP woven fabrics in defined sequences. Polypropylene (PP) and maleic anhydride grafted polypropylene (MAPP) were used as matrix materials. Jute and flax fibers were treated with alkali solution in order to improve the interface properties of the resultant composites. The mechanical properties of these hybrid composites were analyzed by means of tensile, flexural, and drop-weight impact tests. The effect of fabric stacking sequence on the mechanical properties of the composites was investigated. The stacking of nonwovens at the top and in alternate layers has resulted in maximum flexural strength, flexural stiffness, and impact force. It was also shown that hybrid composites have improved tensile, flexural, and impact properties in comparison to neat PP matrix. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: Epoxy nanocomposites modified with multiwalled carbon nanotubes (MWNTs), rubber nanoparticles (RNPs), and the combinations of MWNTs and RNPs were prepared. The effects of multiphase reinforcements on mechanical and fracture properties of epoxy resin were investigated. With combined use of RNPs and MWNTs, the ternary nanocomposites exhibit simultaneous enhancement in stiffness, strength and fracture toughness. Maximum increase of 101% in KIC and 294% in GIC of the ternary composites were achieved in this study. A modified model was developed to predict the modulus of the ternary composites based on the Halpin-Tsai equation, which was proved to match the experimental results exactly. DSC, TEM, SEM, and AFM studies were carried out to evaluate the composition and microstructure of the binary and ternary composites. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: This research aims to investigate the morphology evolution of polyaniline prepared by gradually adding oxidants at different temperatures. Results showed that the polyaniline nanofibers can readily be acquired when increasing the temperature from 25 to 75°C by gradual oxidants addition, even using 5 M LiCl solution as a solvent. The further study revealed that the morphology evolution of polyaniline at temperature 75°C follows the mechanism of continuously preferential homogeneous oxidation nucleation, which remarkably differs from the well-known secondary growth mechanism. Moreover, this morphology evolution mechanism led by temperature effect may be applied for the general synthesis of the nanostructures of other conjugated conducting polymers. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: High density polyethylene (HDPE) and polybenzimidazole fiber (PBI) composites were prepared by melt blending in a twin screw extruder. The thermomechanical properties of PBI fiber reinforced HDPE composite samples (1%, 4%, and 8%) of fiber lengths 3 mm and 6 mm were investigated using differential scanning calorimeter (DSC), universal testing machine, rheometer, and scanning electron microscopy (SEM). The effects of fiber content and fiber lengths on the thermomechanical properties of the HDPE-PBI composites were studied. The DSC analysis showed a decrease in crystallinity of HDPE-PBI composites with an increase of fiber loading. SEM images revealed homogeneous distribution of the fibers in the polymer matrix. The thermal behavior of the composites was evaluated from thermogravimetric analysis and the thermal stability was found to increase with the addition of fibers. The evidence of homogeneous distribution was verified by the considerably high values of tensile strength and flexural strength. In the rheology study, the complex viscosities of HDPE-PBI composites were higher than the HDPE matrix and increased with the increasing of PBI fiber loading. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: Poly(vinylidene fluoride) (PVDF) nanocomposites with different loading of carbon nanotubes (CNT) and carbon black (CB) were prepared by melt blending method. The conductivity and mechanical properties of the nanocomposites were investigated. The results showed that percolation threshold of CNT/CB/PVDF nanocomposites appeared at a lower concentration (1.25 vol% CNT) than that of CNT/PVDF (>2.08 vol% CNT). The tensile strength of CNT/CB/PVDF nanocomposites was also improved, with 32.1% increase compared to PVDF and 18.0% increase compared to CNT/PVDF at loading of 1.25 vol% CNT/0.96 vol% CB. To explore the synergistic effect of CNT and CB, nonisothermal crystallization and isothermal crystallization behaviors of PVDF and its nanocomposites were studied by differential scanning calorimetry, and the crystallization morphology of them was observed under the three dimensional digital microscope with the polarized model. The crystallization rate of PVDF was speeded up markedly because of heterogeneous nucleation effect of nanoparticles, and CNT and CB nanoparticles had a synergistic effect on nucleation. Polarized microscope observation confirmed that spherulite size of PVDF became smaller owing to the accelerating of crystallization, which influenced the distribution of nanoparticles. The dispersion of nanofillers in matrix was observed by scanning electron microscope. It was revealed that CB could make CNT disperse more evenly in the PVDF matrix. The synergies network of CNT and CB is suggested to build in matrix, which improved conductivity and mechanical properties of PVDF nanocomposites. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: Polypropylene (PP) composites containing 20 wt% short flax fibers are prepared, and the process parameters such as throughput, rotational speed, and screw configuration are varied during melt compounding with a corotating intermeshing twin-screw extruder. The investigations reveal that low rotational speeds, high throughputs, and moderate shear energy inputs by the screw configuration led to an optimum set of mechanical properties. To investigate the influence of different composite compositions on the mechanical properties, composites with fiber contents between 0 and 40 wt% and maleic anhydride-grafted PP (PP-g-MA) contents between 0 and 7 wt% are prepared. Increasing fiber contents enhance the Young's modulus and decrease the elongation at break and the notched impact strength. The tensile strength is barely affected. The addition of PP-g-MA increases the tensile strength as well as the elongation at break, whereas the Young's modulus is not influenced. Thus, PP-g-MA enhances the adhesion between PP and flax fibers significantly. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: Polymer materials with embedded silver (Ag) nanoparticle (NP) are of considerable interest owing to their enhanced antimicrobial activity and physical properties compared to host polymer. Antimicrobial and thermally/oxidatively stable coating not only enhances the durability of the coated material but also reduces the growth of bacteria/fungus and thus reduces the chance of infection. For this purpose, we have prepared polydimethylsiloxane-containing predominantly poly(meth)acrylates-based pentablock thermoplastic elastomer (TPE)/gold (Au)–Ag alloy nanocomposites (NCs) with antimicrobial activity and enhanced physical properties. In situ simultaneous reduction of appropriate amount of metal salts in the presence of block copolymer produced Au–Ag NPs of size 5–10 nm. Such embedded 5–10 nm sized particles (loading, 0.1–0.2 wt%) improved the mechanical property, thermal/oxidative stability, and antimicrobial activity of the NCs. The NC films also exhibited tunable surface wetting behavior and optical properties. The NC films showed low level of Ag leaching as confirmed by inductively coupled plasma spectrometer and UV–visible spectroscopy. Improved thermal/oxidative resistance of the TPE/Au–Ag alloy NCs enhanced antimicrobial activity, together with low level of leaching characteristic of the embedded NPs deemed suitable for further use of these NCs material for antimicrobial and oxidatively stable coating applications. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: In the current study, the effect of extracted cellulose nanofibers (CNFs) on rheological and mechanical properties and biodegradability of polyethylene/starch blend was investigated. The CNFs were extracted from wheat straws using a chemo-mechanical method. Polyethylene/starch blend was reinforced by different amounts of CNF (6–14 wt%) using an internal mixer followed by a single screw extruder. The flow properties of nanocomposites were investigated by determining Melt Flow Index (MFI) and viscosity. Due to the weak interaction of cellulosic nanofibers and polymers, the flow behavior of nanocomposites was undesirable. Tensile tests were performed to evaluate the mechanical performance of nanocomposites. By increasing the CNF content, the tensile strength and elongation at break declined; whereas, the Young's modulus was improved. The biodegradation of cellulose nanocomposites was investigated by water absorption and degradability tests. Both experiments confirmed the progressive effect of cellulose nanofibers on the degradation of the composites. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: Dihydrogen phosphate anion-intercalated layered double hydroxides (M-LDHs) was prepared by modification of Mg-Al-CO32− layered double hydroxides (LDHs) with anion exchange procedure. The structure of the M-LDHs was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscope (TEM). Polypropylene (PP)/LDHs and PP/M-LDHs composites were prepared by melt compounding. The morphology of PP composites was investigated by TEM and XRD, which demonstrated that M-LDHs could be well dispersed in PP matrix to form a nano-scale exfoliated structure. Thermogravimetric analysis showed that thermal stability of PP composites was improved by the presence of LDHs and M-LDHs. The flammability of PP composites was characterized by limited oxygen index, vertical burning test (UL-94), FTIR, and cone calorimeter test, and the result showed the fire performance were significantly improved after the addition of LDHs and/or M-LDHs which can remarkably decrease the heat release rate, total heat release, and the fire performance index. It was proposed that the lamellar structure of LDHs can block the heat, dilute the flammable gases and decrease the temperature, while the replaced H2PO4− into LDHs molecules can enhance the charred layer formation during burning procedure. Inductively coupled plasma mass spectrometer analysis showed that most phosphorus remained in the char layer, suggesting the replaced H2PO4− in LDHs molecules mainly function in the condensed phase. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: The dynamic mechanical properties of chlorobutyl rubber nanocomposites containing different varieties of clay have been investigated. The clay moieties have been chosen so that they vary in their organic modification, modifier concentration, and d spacing. The viscoelastic properties such as storage modulus, damping behavior, and loss modulus of polymer composites depends on matrix filler interaction, crystallinity, and extent of crosslinking. The prepared composites were characterized by X Ray Diffraction, and the extend of exfoliation/intercalation was studied. It has been observed that the storage modulus of the composites increased with the addition of filler due to the enhancement in stiffness of the material. The damping behavior was found to decrease with the addition of filler and this was attributed to the restricted movement of the polymer segments. The higher surface area to volume ratio of the layered silicate resulted in the better interaction between the polymer matrix and filler. The variation of loss as well as storage modulus of the nanocomposites were evaluated as a function of filler loading, and a comparison of the properties of the rubber nanocomposites containing different organic clay was also carried out. Finally, a calculation of constrained volume of polymer chains was done in the nanocomposites. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;
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    ABSTRACT: The silicate/polyurethaneurea composites based on dipropylene glycol dibenzoate were prepared via a room-temperature-cured process. Characterization of the composites was accomplished using scanning electron microscope, X-ray diffraction, Fourier transformation infrared spectrum, and Raman spectroscopy, and the mechanism, mechanical properties and stability were discussed in detail. The obtained results indicated that a durable silicate/polyurethaneurea composite with inorganic-organic network structure had been successfully prepared. The composites were thermally stable below 210°C and the compressive and flexural strength of the material could reach 42.6 and 29.2 MPa after curing for 6 h, respectively. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers
    Polymer Composites 07/2014;

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