Effects of Alkali Concentration and Temperature on the Imbibition Properties of Okro Stem HabiscusesculentunFibre
Journal Title: Haya: The Saudi Journal of Life Sciences - Year 2018, Vol 3, Issue 1
Abstract
Abstract:Okro fiber was obtained from okro stem by soaking in ammonium oxalate for 20minutes.The effect of alkali treatment (mercerization) on 10grammes of each sample was investigated. Various concentration of the NaOH (Sodium hydroxide) ranging from 0% to 22% was prepared. The temperature of the treatment was varied from 25 to 40oC .Water imbibitions studies was also carried out on the fiber samples by varying the temperature and concentration of the fiber samples obtained. Result of treatment of the fiber with ammonium oxalate indicated a whitish lustrous material. The mercerization effects on the fiber indicated an increase in mass of the fiber from an initial weight of 0.4g in 1.0M to 0.8g in 4.0M at 25oC .On the other hand, there was a substantial swelling noticed in the case of the fiber sample treated with 1.0M (0.6g) to 0.9g (4.0) at 40oC.For imbibitions studies, the water uptake recorded the best value with fiber treated with 1.0M showing a maximum imbibitions value at 25oC. The overall results of the study indicated that treatment of fiber with chemical enhanced some crucial properties of the fiber and has inhibited substantially the amount of water absorbed by fibrous materials. Industries involved in the exploration of natural fibers as potential fibers may benefit immensely from this investigation as this may add to the list of fiber utilized for fiber production due to its abundance. Keywords:Water absorption, Chemical treatments, Hydrophobic Nature, Hibiscus esculentum, Fibers, Mercerization.
Authors and Affiliations
Abubakar Ahmed Hamidu, Mayen Nelson Ekott
Keywords
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