Determination of alkali treatment conditions effects which influence the variability of kenaf fiber mean cross sectional area
Fiber cross sectional area value is a crucial factor in determining the strength properties of natural fiber. Furthermore, unlike synthetic fiber, a diameter and cross sectional area of natural fiber has a large variation along and between the fibers. This study aims to determine the main an...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/8097/1/J8457_4ffac6f6ed06f4e615c9a9b4e424feeb.pdf http://eprints.uthm.edu.my/8097/ |
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| Summary: | Fiber cross sectional area value is a crucial factor in
determining the strength properties of natural fiber. Furthermore,
unlike synthetic fiber, a diameter and cross sectional area of natural
fiber has a large variation along and between the fibers. This study
aims to determine the main and interaction effects of alkali treatment
conditions which influence kenaf bast fiber mean cross sectional area.
Three alkali treatment conditions at two different levels were
selected. The conditions setting were alkali concentrations at 2 and
10 w/v %; fiber immersed temperature at room temperature and
1000
C; and fiber immersed duration for 30 and 480 minutes.
Untreated kenaf fiber was used as a control unit. Kenaf bast fiber
bundle mounting tab was prepared according to ASTM C1557-03.
Cross sectional area was measured using a Leica video analyzer. The
study result showed that kenaf fiber bundle mean cross sectional area
was reduced 6.77% to 29.88% after alkali treatment. From analysis of
variance, it shows that interaction of alkali concentration and
immersed time has a higher magnitude at 0.1619 compared to alkali
concentration and immersed temperature interaction which was
0.0896. For the main effect, alkali concentration factor contributes to
the higher magnitude at 0.1372 which indicated are decrease pattern
of variability when the level was change from lower to higher level.
Then, it was followed by immersed temperature at 0.1261 and
immersed time at 0.0696 magnitudes. |
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