Science of Emotion and Sensibility (감성과학)

Korean Society for Emotion and Sensibility (한국감성과학회)
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Electrospinning Fabrication of Juniperus Chinensis Extracts Loaded PU Nanoweb

전기방사를 이용한 향나무 추출물 함유 PU 나노웹 제조

  • Kim, Jeong-Hwa (Department of Clothing and Textiles, Chungnam National University) ;
  • Lee, Jung-Soon (Department of Clothing and Textiles, Chungnam National University)
  • 김정화 (충남대학교 생활과학대학 의류학과) ;
  • 이정순 (충남대학교 생활과학대학 의류학과)
  • Received : 2016.02.02
  • Accepted : 2016.05.03
  • Published : 2016.09.30
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Abstract

The uniform nanofibers of polyurethane with different contents of Juniperus Chinensis extracts were successfully prepared by electrospinning method. Polyurethane is widely used as functional polymers in the industrials, medical field as their properties can be tailor-made by adjusting their compositions. Juniperus Chinensis has been reported for anti-tumor, anti-bacterial, anti-fungal, and anti-viral activities. PU/Juniperus Chinensis extracts composite nanofibers were produced at different Juniperus Chinensis extracts concentrations (0.25, 0.5, 1, 1.5wt.%). The effects of the major parameters in electrospinning process such as tip to collector distance (TCD), voltage, polymer concentration on the average diameter of electrospun nanoweb were investigated. As results, 12wt% PU solution concentration, 8kV applied voltage and 15cm tip to collector distance were identified as optimum conditions for electrospinning the composite nanofibers. The diameter and morphology of the nanocomposite nanofibers were confirmed by a scanning electron microscopy (SEM). The resulting fibers exhibited a uniform diameter ranging from 435nm~547nm. It has been found that the average diameters of fibers decreased by the adding of Juniperus Chinensis extracts. These nanowebs can be used for medical materials, protective clothing, and antimicrobial filters.

전기방사법을 이용하여 향나무 추출물을 함유하는 폴리우레탄 나노섬유를 제조하였다. 폴리우레탄은 적절한 성분 배합 제조가 가능하므로 다양한 산업 분야, 의료 분야에서 널리 이용되고 있는 소재이다. 향나무는 항암, 항균, 항곰팡이, 항바이러스성을 가진 것으로 알려져 있다. 향나무 추출물의 다양한 농도(0.25, 0.5, 1, 1.5wt.%)를 포함하는 폴리우레탄 복합 나노섬유를 제조하였다. 나노섬유를 제조하기 위한 다양한 공정변수(방사용액의 농도, TCD, 인가전압)의 변화를 살펴보았다. 실험을 통해 얻어진 PU방사용액의 적정 전기방사 조건은, 방사용액의 농도가 12wt%, 인가전압은 8kV, TCD는 15cm로 나타났다. SEM을 통한 향나무 추출물을 함유하는 나노섬유의 직경은 435nm~547nm였으며, 향나무 추출물의 함량이 증가함에 따라 나노섬유의 평균직경은 감소하는 것으로 나타났다. 개발된 나노웹은 의료 소재, 보호복 소재, 항균필터 소재 등으로의 활용이 기대된다.

Keywords

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