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Effect of maleated polypropylene as coupling agent for polypropylene composites reinforced with hemp strands

Journal of applied polymer science, 2006-10, Vol.102 (1), p.833-840 [Peer Reviewed Journal]

Copyright © 2006 Wiley Periodicals, Inc. ;2007 INIST-CNRS ;ISSN: 0021-8995 ;EISSN: 1097-4628 ;DOI: 10.1002/app.24315 ;CODEN: JAPNAB

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  • Title:
    Effect of maleated polypropylene as coupling agent for polypropylene composites reinforced with hemp strands
  • Author: Mutjé, P. ; Vallejos, M. E. ; Gironès, J. ; Vilaseca, F. ; López, A. ; López, J. P. ; Méndez, J. A.
  • Subjects: Applied sciences ; Composites ; Exact sciences and technology ; fibers ; Forms of application and semi-finished materials ; injection molding ; interfaces ; poly(propylene) ; Polymer industry, paints, wood ; Technology of polymers
  • Is Part Of: Journal of applied polymer science, 2006-10, Vol.102 (1), p.833-840
  • Description: New composites based on poly(propylene) as polymer matrix and hemp strands as natural reinforcement have been developed by injection‐molding. The materials were previously mixed in a two roll mill to induce the dispersion of the fiber inside the polymer. To improve the adhesion between both components, maleated poly(propylene) was added as coupling agent, at 4% wt/wt with respect to hemp strands. The addition of this amount of this coupling agent to the formulation modified with 40 wt % of hemp strands increases the ultimate tensile strength (σt) and flexural strength (σf) up to 49 and 38%, respectively, compared with the composite without coupling agent. The interaction between the surface of hemp strands and the coupling agent was determined by FT‐IR spectroscopy assuming that a covalent bond was established, avoiding the adverse effect of the poor compatibility at the interface for this kind of composites. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 833–840, 2006
  • Publisher: Hoboken: Wiley Subscription Services, Inc., A Wiley Company
  • Language: English
  • Identifier: ISSN: 0021-8995
    EISSN: 1097-4628
    DOI: 10.1002/app.24315
    CODEN: JAPNAB
  • Source: Alma/SFX Local Collection
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