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Thermal properties of polypropylene/rice husk ash composites
Author(s) -
Fuad M. Y. Ahmad,
Mustafah J.,
Mansor M. S.,
Ishak Z. A. Mohd,
Omar A. K. Mohd
Publication year - 1995
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1995.210380104
Subject(s) - husk , materials science , composite material , polypropylene , filler (materials) , crystallinity , thermal stability , black rice , carbon black , chemistry , raw material , botany , natural rubber , organic chemistry , biology
Incorporation of rick husk ash (RHA) fillers into polypropylene affected some of the thermal properties of polypropylene composites. Addition of the black rice husk ash (BRHA) filler raised the thermal degradation temperature while maintaining the oxidative stability. The thermal degradation temperature of the white rice husk ash (WRHA) composites was found to be independent of filler loading but the oxidative stability deteriorated with increasing filler content. DSC studies indicated that both white and black RHA fillers act as weak nucleation agents and increase the degree of crystallinity of polypropylene by a small margin. Addition of the RHA fillers reduced the linear thermal expansion coefficient of the composites. Dynamic mechanical studies showed that the RHA composites with higher filler content have higher storage modulus. Tan δ curves of the composites indicated that WRHA filler increased the damping property while the BRHA filler had an opposite effect.