| dc.creator |
Mwaikambo, Leonard Y. |
|
| dc.creator |
Ansell, Martin P. |
|
| dc.date |
2016-06-01T11:12:20Z |
|
| dc.date |
2016-06-01T11:12:20Z |
|
| dc.date |
2006 |
|
| dc.date.accessioned |
2018-03-27T08:37:21Z |
|
| dc.date.available |
2018-03-27T08:37:21Z |
|
| dc.identifier |
Mwaikambo, L.Y. and Ansell, M.P., 2006. Mechanical properties of alkali treated plant fibres and their potential as reinforcement materials. I. Hemp fibres. Journal of materials science, 41(8), pp.2483-2496. |
|
| dc.identifier |
http://hdl.handle.net/20.500.11810/2323 |
|
| dc.identifier |
10.1007/s10853-006-5098-x |
|
| dc.identifier.uri |
http://hdl.handle.net/20.500.11810/2323 |
|
| dc.description |
In this study a thorough analysis of physical and fine structure of hemp fibre bundles, namely
surface topography, diameter, cellulose content and crystallinity index, have been presented.
The fibre bundles have been alkalised and physical and mechanical properties analysed.
Alkalisation was found to change the surface topography of fibre bundles and the diameter
decreased with increased concentration of caustic soda. Cellulose content increase slightly at
lower NaOH concentrations and decrease at higher NaOH concentrations. The crystallinity
index decrease with increase in caustic soda concentration up to 0.24% NaOH beyond which, it
decreases with increase in NaOH concentration. It was also found that the tensile strength and
stiffness increases with increase in the concentration of NaOH up to a limit. Tensile strength
and Young’s modulus increase with decrease in cellulose content, while crystalline cellulose
decreases slightly but with improved crystalline packing order resulting in increased
mechanical properties. Similar observations are elucidated by the crystallinity index. Alkalised
hemp fibre bundles were found to exhibit a similar specific stiffness to steel, E-glass and Kevlar
29 fibres. The results also show that crystallinity index obtained following alkalisation has a
reverse correlation to the mechanical properties. Stiffer alkalised hemp fibre bundles are
suitable candidates as reinforcements to replace synthetic fibres. The improvement in
mechanical properties of alkali treated hemp fibre bundles confirms their use as reinforcement
materials. |
|
| dc.language |
en |
|
| dc.title |
Mechanical Properties of Alkali Treated Plant Fibres and their Potential as Reinforcement Materials. I. Hemp Fibres |
|
| dc.type |
Journal Article, Peer Reviewed |
|