Relation between tacticity and fiber diameter in melt-electrospinning of polypropylene |
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Authors: | Yosuke Kadomae Yasuhide Maruyama Masataka Sugimoto Takashi Taniguchi Kiyohito Koyama |
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Institution: | (1) Graduate School of Science and Engineering, Yamagata University, Yonezawa 992-8510, Japan;(2) Japan Science and Technology Agency, CREST, Saitama 332-0012, Japan |
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Abstract: | Electrospun atactic polypropylene (PP) fibers are thicker than those obtained from isotactic PP, although the viscosity of
molten PPs is almost same. Thus we focused on the effect of tacticity of PP on fiber diameters. The PP samples with various
tacticity were prepared by changing the blend ratio of isotactic PP and atactic PP. Melt-electrospinning is performed by using
blended samples, and then electrospun fibers were observed by scanning electron microscope to evaluate fiber diameter of obtained
fibers. It is clear that the diameter of electrospun PP fibers decreases as high tacticity content of PP increases. This result
suggests that tacticity of samples is an important factor to control the electrospun fiber diameter. |
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Keywords: | Melt-electrospinning Tacticity Nano fiber Atactic polypropylene Isotactic polypropylene |
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