Effects of injection pressure on the microstructures and mechanical properties of short glass fiber injection-moulded reinforced polypropylene

M. Q. Zhong, Y. N. Pu, X. S. Yi, O. Jacobs

Research output: Journal PublicationArticlepeer-review

1 Citation (Scopus)

Abstract

This paper reported the effects of short glass fiber (GF) content and injection pressure on the microstructure and mechanical properties of GF/PP composites. Experimental results show that the tensile strength is improved, but the impact strength, break elongation and melt flow rate (MFR) are decreased with the increase of glass fiber content in GF/PP composites. Orientation degree of G in core layer is promoted with the increase of injection pressure, but the orientation degree of GF in skin layer is parallel to the melt flow direction (MFD) observed by metallographic optical microscopy and SEM. The crystallizing ability of polypropylene in GF/PP composite goes down with the increase of GF content by polarization microscopy.

Original languageEnglish
Pages (from-to)6-10
Number of pages5
JournalFuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
Volume17
Issue number4
Publication statusPublished - Dec 2000
Externally publishedYes

Keywords

  • Injection pressure
  • Mechanical property
  • Microstructure
  • Polypropylene
  • Short glass fiber

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry (all)
  • Condensed Matter Physics
  • Mechanics of Materials

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