Mechanical and flame retardant properties of wood flour filled polypropylene composites

M.B. Abu Bakar, . and Z.A. Mohd. Ishak, . and H.D. Rozman, . and S. Mohamad Jani, . (2006) Mechanical and flame retardant properties of wood flour filled polypropylene composites. [Proceedings Paper]

Wood flour WFfilled polypropylene PP composites of constant filler content 30 by weight were preparedusing a twin screw extruder and an injection moulding machine. Various types of ecological friendly flame retardent FR based on ammonium polyphosphate APP and magnesium hydroxide MgOH were used in order to improve flame retardency properties of the composites. The flame retardency of the composites was characterized with the vertical burn test UL94-V. It was found that all FR based on APP can effectively reduced the flammability of WF/PP composites by achieving V-O UL94-V classifications. No positive effect however was observed when MgOH was used as a flame retardent. In many cases strength properties decreased but modulus properties increased with the incorporation of FR. The presence of maleic anhydride-grafted-polypropylene MAPP resulted to the improvement of fibre-matrix bonding between WF and PP which consequently enchanced the mechanical properties of the PP composites.

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Abstract

Wood flour WFfilled polypropylene PP composites of constant filler content 30 by weight were preparedusing a twin screw extruder and an injection moulding machine. Various types of ecological friendly flame retardent FR based on ammonium polyphosphate APP and magnesium hydroxide MgOH were used in order to improve flame retardency properties of the composites. The flame retardency of the composites was characterized with the vertical burn test UL94-V. It was found that all FR based on APP can effectively reduced the flammability of WF/PP composites by achieving V-O UL94-V classifications. No positive effect however was observed when MgOH was used as a flame retardent. In many cases strength properties decreased but modulus properties increased with the incorporation of FR. The presence of maleic anhydride-grafted-polypropylene MAPP resulted to the improvement of fibre-matrix bonding between WF and PP which consequently enchanced the mechanical properties of the PP composites.

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Item Type:	Proceedings Paper
Additional Information:	3 ills. 4 table. 23 refs.
AGROVOC Term:	BURNING
AGROVOC Term:	WOOD FLOUR
AGROVOC Term:	MECHANICAL PROPERTIES
AGROVOC Term:	AMMONIUM PHOSPHATE
AGROVOC Term:	MALAYSIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:28
URI:	http://webagris.upm.edu.my/id/eprint/16929

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