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에탄올 비용매를 이용한 메타아라미드 피브리드 제조 및 형태학적 특성

Preparation and Morphological Characteristics of m-Aramid Fibrid Using a Non-solvent of Ethanol

  • 백병운 (전북대학교 공과대학 유기소재파이버공학과) ;
  • 김완진 (전북대학교 공과대학 유기소재파이버공학과) ;
  • 정용식 (전북대학교 공과대학 유기소재파이버공학과)
  • Baek, Byungwoon (Department of Organic Materials & Fiber Engineering, Chonbuk National University) ;
  • Kim, Wan Jin (Department of Organic Materials & Fiber Engineering, Chonbuk National University) ;
  • Chung, Yong Sik (Department of Organic Materials & Fiber Engineering, Chonbuk National University)
  • 투고 : 2014.03.10
  • 심사 : 2014.06.02
  • 발행 : 2014.06.30

초록

Fibrids are materials of a complex fibrous, film-like, or intermediate form. The diameter of the particles varies between $20-50{\mu}m$, and $100-10,000{\mu}m$. The optimal form and size of the particles depends in each case on the area of application. The fibrid form is the result of two processes, viz. a wave process and diffusion. The life span and break-up pattern of the polymer depend on the interphase surface tension, the viscosity of the polymer, and the diffusion speed ratio of the polymer and medium. In this study, m-aramid was polymerized at low temperature and in solution with an equal molar ratio of MPD and IPC in DMAc. The meta-aramid solution was prepared by dissolution in DMAc, and ethanol was used as a coagulation bath. The rotation speed was the main factor affecting the formation and morphology of the fibrid. Meta-aramid paper was produced from m-aramid fiber with meta-aramid fibrid by wet laying. The results showed that fibrid particle sizes decreased with increasing rotation speeds and decreasing concentrations of m-aramid in the solution. The properties of the m-aramid fibrid as a function of the processing conditions were investigated using an image analyzer, optical microscopy, and SEM. The resulting meta-aramid paper was analyzed in terms of its morphology, thickness, air permeability, and mechanical properties.

키워드

참고문헌

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피인용 문헌

  1. Preparation and Morphological Characteristics of m-Aramid Fibrid Using a Fibridator of High Rotation Speed vol.52, pp.1, 2015, https://doi.org/10.12772/TSE.2015.52.026