Effect of flyash content and coupling agent on the mechanical properties of flyash-filled polypropylene

Wong K.W.-Y. and Truss R.W. (1994) Effect of flyash content and coupling agent on the mechanical properties of flyash-filled polypropylene. Composites Science and Technology, 52 3: 361-368. doi:10.1016/0266-3538(94)90170-8


Author Wong K.W.-Y.
Truss R.W.
Title Effect of flyash content and coupling agent on the mechanical properties of flyash-filled polypropylene
Journal name Composites Science and Technology   Check publisher's open access policy
ISSN 0266-3538
Publication date 1994-01-01
Sub-type Article (original research)
DOI 10.1016/0266-3538(94)90170-8
Volume 52
Issue 3
Start page 361
End page 368
Total pages 8
Subject 2200 Engineering
2503 Ceramics and Composites
Abstract Flyash to 20 wt% was added to polypropylene and an ethylene/propylene copolymer with and without the addition of a maleic anhydride grafted polypropylene coupling agent. The tensile mechanical properties were assessed and the fracture toughness measured by using notched impact specimens. The modulus of the materials increased with the addition of the filler and further increased with the addition of the coupling agent while the yield stress decreased with the addition of 10 wt% filler and no coupling agent but was unchanged from the matrix when the coupling agent was added. Elongation to break was significantly less in those composites to which the coupling agent had been added. Scanning electron microscopy showed that bonding between the matrix and the filler was significantly improved by the addition of the coupling agent and this appeared to hinder the drawing mechanisms in the polymer. The fracture toughness in the copolymer based composites was seen to decrease with filler content.
Keyword composites
coupling agent
flayash
polypropylene
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 23 Aug 2016, 11:34:32 EST by System User