Polymer-Plastics Technology and Engineering (POLYM-PLAST TECHNOL )

Publisher: Taylor & Francis

Description

Polymer-Plastics Technology and Engineering includes original articles, state-of-the-art reviews, abstracts, notes, and letters on topics such as developing non-solution based polymerization processes; new generation catalysts for producing ultranarrow molecular weight distribution polymers; reactor design and catalyst technology for compositional control of polymers; advanced manufacturing techniques and equipment; analytical tools for characterizing molecular properties, and other timely subjects.

  • Impact factor
    1.48
    Show impact factor history
     
    Impact factor
  • 5-year impact
    1.31
  • Cited half-life
    4.00
  • Immediacy index
    0.24
  • Eigenfactor
    0.00
  • Article influence
    0.16
  • Website
    Polymer - Plastics Technology and Engineering website
  • Other titles
    Polymer-plastics technology and engineering (Online), Polymer-plastics technology and engineering
  • ISSN
    0360-2559
  • OCLC
    41603560
  • Material type
    Document, Periodical, Internet resource
  • Document type
    Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Taylor & Francis

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    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 month embargo for STM, Behavioural Science and Public Health Journals
    • 18 month embargo for SSH journals
  • Conditions
    • Some individual journals may have policies prohibiting pre-print archiving
    • Pre-print on authors own website, Institutional or Subject Repository
    • Post-print on authors own website, Institutional or Subject Repository
    • Publisher's version/PDF cannot be used
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Set statements to accompany deposits (see policy)
    • Publisher will deposit to PMC on behalf of NIH authors.
    • STM: Science, Technology and Medicine
    • SSH: Social Science and Humanities
    • 'Taylor & Francis (Psychology Press)' is an imprint of 'Taylor & Francis'
  • Classification
    ​ yellow

Publications in this journal

  • Polymer-Plastics Technology and Engineering 01/2015;
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    ABSTRACT: The effect of graphene nanosheets (GNS) on the fire and mechanical performances of glass fiber-reinforced polyamide 6 composites containing aluminum hypophosphite (GFPA6) was investigated. Results indicated that the introduction of GNS played little role in improving the thermal stability and fire retardancy of the GFPA6 composite, but exhibited visible anti-dripping phenomenon performance. With the addition of GNS, the mechanical properties of the composite are obviously increased. When the content of GNS was 1 wt.%, the composite had the optimized mechanical properties with tensile strength of 52 Mpa, bending strength of 66 Mpa, and impact strength of 15 KJ/m2, respectively.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: This article establishes a novel polymer microchannel tube (MCT) with a channel (0.9–3.0 mm in diameter) in the center surrounded by an array of microchannels (50–300 µm) using extrusion technology. The draw ratio and melt drawing length are demonstrated to significantly affect the cross-sectional parameters of MCT, which is consistent with numerical simulations using Polyflow and theoretical analysis. It was found that the process parameters negligibly influence the relative proportions between cross-sectional parameters. Based on a simplified drawing model, a prediction function of high reliability (R-square >95%) for cross-sectional parameters is set up. The MCTs are formed more uniformly compared with microcapillary films (MCFs) because of the elimination of the sharp boundary effect. Each of the microchannels is formed elliptically as a result of the non-uniform velocity distribution around the injector tip exit. The mechanism where the ambient air is automatically entrained into the microchannels at atmospheric pressure was elucidated.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: A modular laboratorial single screw extruder was used to perform screw pulling experiments and generate data on the development of plasticating of two polymers along the axis of a Maillefer barrier screw. The effects of the presence of the barrier (by comparison with an equivalent conventional 3-zone screw), of its geometrical parameters and of operating conditions were investigated and compared to the predictions provided by a previously developed computational model. Although the small size of the extruder influenced solids conveying and induced premature and quick melting, the two sets of data were generally in satisfactory agreement.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: Chitosan is considered as a promising material in the pharmaceutical and biomedical fields based on its unique biological properties. This review presents chemical modifications of chitosan via using photosensitizers, dendrimers, sugars, cyclodextrins and crown ethers as modifiers and places an emphasis on the applications of chitosan derivatives as carriers in drug delivery systems, as supporting materials for tissue engineering, as dye removing agents and as metal ion adsorbents. Recently, the progress on chemical modifications of chitosan is quite rapid and we are confident that a more extensive range of applications of chitosan derivatives could be expected in the near future.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: This work examined two drug delivery systems: the first system studied the adsorption of Verapamil hydrochloride drug into montmorillonite clay (MMT) by intercalation process to prepare MMT-Verapamil hybrid at different intercalating time, temperatures, pH values and initial drug concentrations. The second system includes the preparation of MMT-Verapamil hybrid combined with polymethyl methacrylate via an emulsion polymerization process to produce a novel nanocomposite material to be used in drug delivery. The polymerization process was carried out using an ultrasonic technique to achieve a biologically safe drug delivery system. Best conditions for the intercalation of verapamil hydrochloride drug into the interlayer of MMT clay were found to be at 50°C and 1 hr using pH ranges of 4–6. The prepared MMT-Verapamil hybrid and the produced MMT-verapamil-MMA nanocomposite material were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and thermal gravimetric analysis (TGA). The in-vitro release profile of Verapamil in the case of a drug hybrid is faster than the release in the case of a drug nanocomposite in both gastric and intestinal fluids where, in the case of gastric fluid (pH 1.2), about 40% of the loaded drug was released from the drug hybrid in the first 4 h against only 37% in 5 h in the case of drug nanocomposite. Also in the intestinal fluid (pH 7.4), the verapamil release from drug hybrid reached 68% in 5 h against only 57% was released from drug nanocomposites in 7 h.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: Plasma-functionalized multi-walled carbon nanotubes (p-MWCNTs) are used to fabricate poly (methyl methacrylate) (PMMA) based nanocomposites with different p-MWCNTs loadings. First, MWCNTs are functionalized by He-dielectric barrier discharge plasma followed by an exposure to NH3 and then the PMMA/p-MWCNTs nanocomposites are prepared by a phase inversion-based solution method. The rheological and electrical properties of the PMMA/p-MWCNTs nanocomposites are measured. The results showed that the electrical and rheological percolation thresholds appear at a very low value of 0.5 wt.% p-MWCNTs loading. This value is one of the lowest reported percolation thresholds for PMMA/MWCNTs nanocomposites, indicating excellent dispersion state of the p-MWCNTs in PMMA.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: Effect of zeolite and organically modified montmorillonite (MMT) clay on flammability of high-impact polystyrene (HIPS) with ammonium polyphosphate (APP) flame retardant was investigated. Composites were prepared by melt blending in a twin-screw extruder, and it was found that zeolite and APP improve fire performance of HIPS with optimal concentration of 4 mass % of zeolite. Samples with MMT/APP and zeolite/APP have similar results of flammability, yet combination MMT/zeolite/APP had no additional improvement of thermal and fire properties. Mechanical properties were degraded with increasing concentration of zeolite, and improvement was visible when only MMT clay was used in combination with APP.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: Biopolymers are the most abundant raw materials that can be obtained from natural sources including bacteria, fungi, plants and even humans. The biopolymers are easily available, non-toxic, biodegradable and Generally Regarded as Safe (GRAS). These natural polymers can play an important role in the formulation of drug delivery systems by influencing the release, residence time and permeation of the therapeutic agent. The present review gives an insight into the important biopolymers and their properties in the effective delivery of the therapeutic agents systemically as well as targeting the brain via the intranasal route.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: The modification of polypropylene (PP) fibers via blending with recycled poly(lactic) acid (r-PLA) flakes by a melt spinning method was investigated. Mechanical and morphological properties, biodegradability, differential scanning calorimetery (DSC) analysis, and dyeing behavior were carried out for physical and structural characterization of the fiber samples. The results showed that the PP/r-PLA blend fibers with the different blend ratios could be successfully melt spun along with suitable continuity. Acceptable tenacity and initial modulus and suitable biodegradability were obtained for the modified PP fibers. Dye uptake of the modified PP fiber samples was improved and the washing and light fastness of some them were excellent.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: Bio-nanocomposites have been developed using cross-linked chitosan and cross-linked thermoplastic starch along with acid functionalized multiwalled carbon nanotubes (f-MWCNT). The nanocomposites developed were characterized for mechanical, wear, and thermal properties. The results revealed that the nanocomposites exhibited enhanced mechanical properties. The composites containing 3% f-MWCNT showed maximum compression strength. Tribological studies revealed that, with the addition of small amount of f-MWCNTs the slide wear loss reduced up to 25%. SEM analysis of the nanocomposites showed predominantly brittle fractured surface. Thermal analysis showed that the incorporation of f-MWCNTs has improved the thermal stability for the nanocomposites.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: We prepare polycarbonate/poly(acrylonitrile-butadiene-styrene) composites which are reinforced with sepiolite nanofibers and use a polystyrene-maleic anhydride copolymer for improving polycarbonate/poly(acrylonitrile-butadiene-styrene) compatibility. By measuring glass transition temperatures and morphologies, we conclude that the copolymer effectively improves the compatibility. Further, polycarbonate/poly(acrylonitrile-butadiene-styrene) composites containing various amounts of sepiolite are prepared. It is found that the surface-modified sepiolite nanofibers are well-dispersed in the polymer matrix, and the mechanical properties and heat resistance are increased with the sepiolite contents increasing. The influences of sepiolite nanofibers on the melt flowability are also investigated. With these results, the composite with the optimum properties is provided.
    Polymer-Plastics Technology and Engineering 10/2014; 53(14).
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    ABSTRACT: In this article Polypropylene/Polypyrrole (PP/PPy) and Polypropylene/polypyrrole-graphene oxide (PP/PPy-GO) nanocomposites were prepared by melt mixing. PPy nanoparticles and PPy-GO nanocomposite were prepared by chemical polymerization and served as nanofillers. FTIR, XRD and SEM analysis were used for the characterization of PPy and PPy-GO composites. The effects of PPy and PPy-GO loading level on the morphology, tensile and electrical properties of PP-based nanocomposites were examined. It was found that the Young's modulus and tensile strength increased with the increase of nanofiller content. Tensile results also showed that PPy-GO composite significantly affected the mechanical properties of PP based nanocomposites compared to the PPy nanoparticles. It was observed that the addition of 1% wt. PPy-GO into PP, increased the Young's modulus about 30% compared as with pure PP. Electrical conductivity measurements showed that conductivity of PP nanocomposites increased up to 1 × 10−3 S/cm for PP/PPy-GO nanocomposites. It was also observed that PP-g-MA improved the distribution of PPy and PPy-GO nanocomposites and affected the morphology, electrical and mechanical properties of PP-based nanocomposites.
    Polymer-Plastics Technology and Engineering 09/2014; 53(13).
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    ABSTRACT: Structure and physical properties of PLA/PE/organoclay with and without compatibilizer (PE-g-MA) with PLA as a matrix phase were investigated by X-ray diffraction, transmission electron microscopy, rheometric mechanical spectrometer, thermal gravimetric analysis, dynamic mechanical thermal analysis and Mechanical experiments. Two types of compatibilized-blend nanocomposites were prepared by two feeding orders: (1) simultaneous feeding, (2) PLA/organoclay-based master batch. The XRD results showed an intercalated structure for nanocomposites. The mechanical results demonstrated that presence of PE and compatibilizer improved the elongation at break, while organoclay enhanced Young's modulus. Thermogravimetric analysis showed that organoclays could retard the thermal decomposition process in the nanocomposites.
    Polymer-Plastics Technology and Engineering 09/2014; 53(13).
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    ABSTRACT: This article deals with the effect of electron beam irradiation and flame-retardant loading on the performances of LDPE-based formulations for wire and cable applications. In this study the influence of electron beam irradiation on different blends of low density polyethylene (LDPE) filled with aluminum trihydrate (ATH), magnesium hydroxide (MH), and calcium carbonate (CaCO3) were studied. The mechanical, thermal, and burning properties of the resulting polymer networks have been analyzed and discussed. Addition of all non-halogenated fillers to LDPE deteriorated the mechanical properties. Addition of MH to LDPE presented a significant increase on adhesion forces inside polymer matrices and acted more efficiently than similar ATH/LDPE and CaCO3/LDPE compounds. LDPE flame retardancy improved significantly by a carbonaceous, non-flammable coating formation with high plasticity of CaCO3 addition at high temperature. The resulting MH blends were more efficient thermally and burned more stably than similar ATH blends. It was also concluded that electron beam irradiation had improved effects on thermal stability and mechanical properties for all the polymeric samples in this research.
    Polymer-Plastics Technology and Engineering 09/2014; 53(13).
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    ABSTRACT: Metal–polymer nanocomposites have been prepared from an aqueous solution of polyvinyl alcohol/acrylic acid (PVA/AAc) and silver nitrate (AgNO3). The functionalized PVA/AAc was copolymerized and cross-linked using electron beam irradiation. The prepared nanocomposites were characterized by FTIR, TEM and TGA. The average grain size is in the range of 15–44 nm, depending on Ag concentration. The thermal stability was found to increase and the optical band gap decreased with the increase of dopant concentration. The real and imaginary parts of the dielectric constant, optical conductivity, volume energy loss (VELF) and surface energy loss (SELF) of the films were also determined.
    Polymer-Plastics Technology and Engineering 09/2014; 53(13).
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    ABSTRACT: Nanocomposites of polyaniline with iron oxide (PANI-Fe3O4) and copper ferrite (PANI-CuFe2O4) were prepared and characterized by FTIR, HRTEM, XRD and FESEM. HRTEM images reveals that the main size distributions are located in the range between 25–34 and 22–28 nm in case of PANI-CuFe2O4 and PANI-Fe3O4 nanocomposites, respectively. The dielectric constant value for PANI-Fe3O4 nanocomposites reaches a maximum value as high as ∼7000 (102 Hz), while the same for PANI-CuFe2O4 composite attains a maximum value of ∼2600 at 102 Hz. A quantitative estimation of the contribution of the grain boundary and resistance parameters has been attempted in terms of Maxwell-Wagner two-layered model.
    Polymer-Plastics Technology and Engineering 09/2014; 53(13).
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    ABSTRACT: A series of side-chain liquid crystalline polymers (LCPs) have been prepared. Their chemical structures and properties have been fully investigated. Homopolymers P1 and P7 show a nematic phase and a smectic A phase, respectively, and copolymers P2-P6 reveal a cholesteric phase. The reflection wavelengths of P2-P6 exhibit blue shift. P2-P6 display selective reflection at temperatures below the glass transition on first cooling cycle, which cannot be observed on the first heating. The isotropic phase transition temperatures and glass transition temperatures of the polymers increase with the increase of cholesteric mesogens in the polymer systems.
    Polymer-Plastics Technology and Engineering 09/2014; 53(13).
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    ABSTRACT: Dicumyl peroxide (DCP) was introduced into thermoplastic polyurethane (TPU) toughened poly(L-lactide) (PLLA) blends. The results showed that the presence of DCP at relatively high concentration (0.2–0.5 wt.%) not only resulted in the homogeneous distribution of TPU particles with largely decreased particle size but also improved the interfacial interaction between PLLA and TPU components. Consequently, super toughened PLLA/TPU blends with largely enhanced impact strength were achieved successfully. The toughening mechanism was analyzed based on the impact-fractured surface morphologies of samples. Further enhanced impact toughness could be achieved by introducing crystalline structure to PLLA matrix, which was realized by annealing treatment.
    Polymer-Plastics Technology and Engineering 09/2014; 53(13).
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    ABSTRACT: In this work we present a new method to enhance the durability of silicone molds, which are used in industrial processes for small batch production. The goal is to reduce the aging effects of the molds that occur after a minor number of casting processes and therefore get a higher output of these molds. First the source of the aging effects is identified. It is shown that the molds are nourished with the low molecular components of the polyurethane mixtures during the casting process, and that the diisocyanate component is responsible for the aging effects. For the removal of these components, several solvents are used. Acetone is shown to be most effective; the regeneration leads to a 30% higher output. Because acetone also removed free silicone oil from the molds, a mixture of the solvent with new silicone oil as regenerating agent was applied, which led to an overall improvement of lifetime of 60%.
    Polymer-Plastics Technology and Engineering 09/2014; 53(13).

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