Evaluation of Physical and Mechanical Properties of Polylactide/Rice Hull Filled Composite Plates

Simple item page
dc.contributor.authorNdazi, Bwire S.
dc.date.accessioned2016-03-11T10:13:13Z
dc.date.available2016-03-11T10:13:13Z
dc.date.issued2012
dc.descriptionFull text available at http://search.proquest.com/openview/c7733198d14fc2d143546a76161a5466/1?pq-origsite=gscholaren_US
dc.description.abstractThe influences of rice hull modification and content on the physical and mechanical properties of the polylactide (PLA) composite plates have been investigated in this paper. The rice hull was prepared by soda cooking at 170°C for 60 min and by crushing with a hammer miller. The mixture of the PLA and the rice hull was compounded in the extruder in the presence of fixed amounts of maleic anhydride and dicumyl peroxide. This was followed by compression moulding of the mixture under vacuum for 5 minutes in the Fortune Press to produce approximately 2 mm thick composite plates. The composite plates produced were subjected to flexural and tensile tests using the Instron while the morphology of the fractured surfaces was investigated by scanning electron microscopy. The results revealed that crushed and soda cooked rice hulls both acted predominantly as rigid fillers in the PLA matrix. Their presence did not impart any improvement of the strength of the composite plates. However, the tensile and flexural moduli of the composite plates were found to improve up to 0.46 and 1.1 GPa, respectively, due to addition of the rice hull fillers. The composite plates made of the rice hull pulps generally exhibited higher flexural properties than those produced from ground rice hulls as demonstrated by statistical analysis. This was due to enhancement of chemical interaction between the chemically modified rice hulls and the PLA matrix as also revealed on the nature of the fractured surfaces by SEM. The tendency of the composite plates to exhibit brittle failures was demonstrated by abrupt tensile fractures at lower strainsen_US
dc.identifier.citationNdazi, B.S., 2012. Evaluation of Physical and Mechanical Properties of Polylactide/Rice Hull Filled Composite Plates. Polymers from Renewable Resources, 3(3), p.101.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/863
dc.language.isoenen_US
dc.publisherRAPRA JOURNALSen_US
dc.subjectCompositeplatesen_US
dc.subjectMechanicalpropertiesen_US
dc.subjectPolylactideen_US
dc.subjectPhysical propertiesen_US
dc.subjectRice hull pulpsen_US
dc.titleEvaluation of Physical and Mechanical Properties of Polylactide/Rice Hull Filled Composite Platesen_US
dc.typeJournal Articleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Evaluation of Physical and Mechanical Properties of Polylactide.pdf
Size:
93.97 KB
Format:
Adobe Portable Document Format
Description:
Abstract
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Department of Mechanical and Industrial Engineering