Effect Of Chemical Treatment On Rice Husk (RH) Reinforced Polyethylene (PE) Composites
In this study rice husk reinforced polyethylene composites and their test specimens were manufactured using a single screw extruder and an injection molding machine, respectively. Raw rice husk was chemically treated with benzene diazonium salt in alkali, acidic, and neutral media, in order to i...
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| Main Authors: | , , , , |
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| Format: | E-Article |
| Language: | English |
| Published: |
BioResources
2010
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/13929/1/EFFECT%20OF%20CHEMICAL%20TREATMENT%20ON%20RICE%20HUSK%20%28RH%29%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/13929/ |
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| Institution: | Universiti Malaysia Sarawak |
| Language: | English |
| Summary: | In this study rice husk reinforced polyethylene composites and their test
specimens were manufactured using a single screw extruder and an
injection molding machine, respectively. Raw rice husk was chemically
treated with benzene diazonium salt in alkali, acidic, and neutral media,
in order to improve in the mechanical properties. The mechanical
properties of the composites prepared from alkaline media treated rice
husk were found to increase substantially compared to those of acidic
media, neutral media, and untreated ones. However, the values for the
alkaline media treated rice husk-PE composites at all mixing ratios were
found to be higher than those of treated acidic media, treated neutral
media, and untreated rice husk composites respectively. The SEM
micrographs reveal that interfacial bonding between the treated filler and
the matrix has significantly improved, suggesting that better dispersion of
the filler into the matrix was achieved upon treatment of rice husk. Based
on filler loading, 35% filler reinforced composites had the optimum set of
mechanical properties among all composites manufactured. |
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