Investigation On Char Residues And Mean Reactivity Of Compression Molded Rice And Coffee Husks Biochar Reinforced Polypropylene

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dc.contributor.authorYiga, Vianney Andrew
dc.contributor.authorLubwama, Michael
dc.contributor.authorOlupot, Peter Wilberforce
dc.date.accessioned2022-01-26T20:09:48Z
dc.date.available2022-01-26T20:09:48Z
dc.date.issued2020
dc.description.abstractFiber-reinforced plastics have gained utilization in recent years for many applications because they are a cheaper alternative to the ordinary petroleum-derived materials. On the other hand, considerable amounts of agricultural wastes still lack enough utilization. In this study, bio-chars of husks from two rice and two coffee varieties in Uganda were utilized as fillers to reinforce polypropylene (PP) and thus develop fiber-reinforced plastics. Bio-char filler material was varied between 0 % and 20 %. The plastics were prepared via melt mixing followed by compression molding. Effects of bio-char content on the thermal stability of the developed plastics were studied by use of an Eltra Thermostep Thermogravimetric analyzer. Thermogravimetric analysis (TGA) results showed that inclusion of bio-char improved the thermal stability of the developed fiber-reinforced plastics. Maximum rate of weight loss ranged from -0.0414 %/min (for 15 % unmodified Wita-9 rice bio-char) to 0.0023 %/min (for pure PP), corresponding to respective peak temperatures of 680.8 °C and 604 °C respectively. Peak temperatures generally increased with increase in filler loading. It was found out by this study that incorporation of bio-char fiber material resulted in increased char residues. These residues tended to hinder combustion. The highest char residues (17.4 %) were obtained when PP was loaded with 15 % neutral Wita-9 rice husks bio-char. The highest mean reactivity attained was 6.1×10-5 %/minute/°C obtained when 10 % unmodified Pussa rice husks bio-char was used to reinforce PP.en_US
dc.identifier.citationYiga, V. A., Lubwama, M., & Olupot, P. W. (2020). INVESTIGATION ON CHAR RESIDUES AND MEAN REACTIVITY OF COMPRESSION MOLDED RICE AND COFFEE HUSKS BIO-CHAR REINFORCED POLYPROPYLENE. In ASTFE Digital Library. Begel House Inc..DOI: 10.1615/TFEC2020.cbf.032093en_US
dc.identifier.isbn978-1-56700-518-9
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/1571
dc.language.isoenen_US
dc.publisherIn ASTFE Digital Libraryen_US
dc.subjectBio-char, coffee husks, fiber-reinforced plastics, rice husks, TGA.en_US
dc.titleInvestigation On Char Residues And Mean Reactivity Of Compression Molded Rice And Coffee Husks Biochar Reinforced Polypropyleneen_US
dc.typeArticleen_US
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