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KMID : 1024520130220020243
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Journal of the Environmental Sciences
2013 Volume.22 No. 2 p.243 ~ p.249
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Oil Absorbencies of Fibers of Biodegradable and Microbial Polymers Prepared by Electrospinning Method
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Jang Ei-Sup
Lee Won-Ki
Park Chan-Young
Min Sung-Kee
Jang Seong-Ho
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Abstract
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Fibers of microbial polyesters, poly(3-hydroxy butyrate) (PHB) and poly(3-hydroxy butyrate-co-3-hydroxy valerate) (HB-co-HV) were prepared by electrospinning method. The obtained fibers were evaluated by differential scanning calorimetry, scanning electron microscopy, and oil absorption. The formation of fibers was strongly dependent on a concentration of solution. At a low concentration, the fibers contained beads which is from aggregation of polymer due to short evaporation time. The fine fibers with 2-5 mm diameter were obtained at 20 wt% concentration. The contact angle measurement showed that the fiber had higher water contact angle than the film due to the lotus-like effect. Oil absorbency showed that the fiber had higher than the film. Specially, the HB-co-HV fiber which was spinned from 20 wt% absorbed 65% oil which is much higher than that of a normal polypropylene-based oil paper.
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KEYWORD
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Microbial polyester, Electrospinning, Lotus effect, Oil absorbency
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