화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.44, No.6, 809-816, November, 2020
DOI10.7317/pk.2020.44.6.809  Export Citation
에어레이드 실크부직포의 제조, 구조특성 및 성질
Preparation, Structural Characteristics, and Properties of Airlaid Nonwoven Silk Fabric
배연수, 엄인철†
  • 경북대학교 바이오섬유소재학과
Yeon Su Bae, and In Chul Um†
  • Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, Korea
E-mail:
초록
본 연구에서는 실크 단사를 공기 분산 후 습윤 및 열압착 처리를 통하여 새로운 에어레이드 실크부직포를 제조하고 그 구조특성과 성질에 대해 살펴보았다. 실크사의 길이가 증가할수록 웹에서 실크사의 분산성은 나빠지고, 실크웹의 인장강도는 감소하였다. 열압착 온도가 200 °C까지 증가함에 따라 에어레이드 실크부직포의 강도와 신도가 증가하였다가 그 이후에는 감소하여 200 °C가 부직포의 기계적 물성을 위한 최적의 압착온도로 밝혀졌다. 2.5% 세리신 수용액을 실크웹에 6 mL 첨가 시까지는 실크부직포의 기계적 물성 향상에 도움이 되었으나 그 이후에는 물성 개선에 도움이 되지 못하는 것으로 나타났다. 본 연구결과를 통해 새로운 실크부직포가 공기분산법을 이용하여 제조가능함을 확인할 수 있었고, 다만 향후에 실크단사보다는 실크섬유를 이용하는 등 제조 공정조건에 대한 개선이 필요할 것으로 생각된다.
In this study, short silk yarns were manually airlaid, wetted, and hot-pressed to fabricate new airlaid nonwoven silk fabric. Furthermore, the structural characteristics and properties of the nonwoven fabric were examined. As the length of silk yarn increased, the dispersion of silk yarn in the web worsened and the tensile strength of the resultant nonwoven silk fabric decreased. As the press temperature was increased to 200 °C, the tensile strength and elongation of the airlaid nonwoven silk fabric increased. However, it subsequently decreased with further increase in the press temperature, indicating that 200 °C is the optimum press temperature for obtaining the best mechanical properties of the nonwoven silk fabric. An addition of a 2.5% aqueous sericin solution improved the mechanical properties of the nonwoven silk fabric up to a certain point (i.e., 6 mL); however, further addition of the sericin solution was not helpful. This study demonstrated that nonwoven silk fabric can be fabricated using the airlaid method, although the process should be further improved by controlling preparation conditions, such as using short silk fiber rather than short silk yarn.
Keywords:nonwoven silk fabric;airlaid method;sericin;mechanical properties
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