Effects of filler loading on rubberwood sawdust-polypropylene composite
2006
Azwan Norul Anhar | Jamaludin Kasim
Rubberwood sawdust from furniture industry was used as filler in polypropylene composite. The sawdust was air dried for two weeks to achive a moisture content of less than 15%. The sawdust was then screened using vibrating screening machine to classify into three size (40,60 and 80 mesh size). The screened sawdust was then oven- dried for 48 hours prior to mixing to achive a moisture of less than 5%. Polypropylene as melted in dispersion mixer at temperature of 180c for 15 minutes and then sawdust at 10%,30% and 50% filler loading was added. The composite was produced by hot pressing for about 10 minutes before going for cold pressing process for 2 minutes to produce test sample.The mechanical properties of the sample were tested according to ASTM Standards. The result indicated that bending and tensile properties of rubberwood sawdust-polypropylene composite decreased due to filler loading while modolus properties increased. The rubberwood-polypropylene composite is recommended for used in the manufacturing of products that does not require high strength properties.
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