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Impact fracture toughness and morphology of polypropylene/Mg(OH)2 composites

  • Ji-Zhao Liang EMAIL logo and Feng-Jiao Li
Published/Copyright: September 21, 2013
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 33 Issue 8

Abstract

Magnesium hydroxide [Mg(OH)2] with high flame retardant efficiency filled polypropylene (PP) composites were prepared using a twin-screw extruder. The impact fracture behavior of the composites was measured at room temperature. It was found that the toughening effect of the filler content on the PP resin was significant. The V-notched Izod impact strength of the PP/Mg(OH)2 composites showed a nonlinear increase with increase in filler weight fraction (ϕf), as ϕf was <15%, and then it decreased slightly; When ϕf was <15%, the V-notched Charpy impact strength of the PP/Mg(OH)2 composite also increased nonlinearly, then it decreased slightly. The impact fracture surface was observed by means of a scanning electronic microscope, to understand the toughening mechanisms for the composite systems.

Keywords: impact strength; morphology; polymer composite; toughening mechanism
Corresponding author: Ji-Zhao Liang, Research Division of Green Function Materials and Equipment, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China, e-mail:

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Received: 2013-7-18
Accepted: 2013-8-28
Published Online: 2013-09-21
Published in Print: 2013-11-01

©2013 by Walter de Gruyter Berlin Boston

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https://doi.org/10.1515/polyeng-2013-0179
Keywords for this article
impact strength; morphology; polymer composite; toughening mechanism

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Original articles
  4. Grafting of maleic anhydride on polypropylene by reactive extrusion: effect of maleic anhydride and peroxide concentrations on reaction yield and products characteristics
  5. An optical system for measuring the residence time distribution in co-rotating twin-screw extruders
  6. Effect of processing technology on the morphological, mechanical and electrical properties of conductive polymer composites
  7. Thermodynamic modeling of polyamide-6 (PA-6)/cellulose acetate (CA) blend membrane prepared via casting technique
  8. Monte Carlo simulation of ionic conductivity in polyethylene oxide
  9. Impact fracture toughness and morphology of polypropylene/Mg(OH)2 composites
  10. High impact toughness of polyamide 6/poly (vinylidene fluoride) blends induced by an ionic liquid
  11. Application of chemically-cross-linked chitosan for the removal of Reactive Black 5 and Reactive Yellow 84 dyes from aqueous solutions
  12. Flame retardation behaviors of UV-curable phosphorus-containing PU coating system
  13. Preparation and characterization of modified chitosan for in vitro controlled release of vitamin B12
  14. Surface modification of nano-alumina and its application in preparing polyacrylate water-based wood coating
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