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 language | English |
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Pages (from-to) | 6-10 |
Number of pages | 5 |
Journal | Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica |
Volume | 17 |
Issue number | 4 |
Publication status | Published - Dec 2000 |
Externally published | Yes |
Keywords
- Injection pressure
- Mechanical property
- Microstructure
- Polypropylene
- Short glass fiber
ASJC Scopus subject areas
- Ceramics and Composites
- General Chemistry
- Condensed Matter Physics
- Mechanics of Materials