Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Fine Structure and Physical Properties of Nylon 4 Copolymer (III) - Effect of the Contents of Nylon 4 -

나일론 4 공중합물 소재의 구조와 물성(III) -나일론 4 함량의 영향-

  • Lee, Sun Hee (Department of Fashion Design, Dong-A University) ;
  • Cho, Hyun Hok (Department of Organic Materials Science and Engineering, Pusan National University)
  • 이선희 (동아대학교 패션디자인학과) ;
  • 조현혹 (부산대학교 유기소재시스템공학과)
  • Received : 2012.07.02
  • Accepted : 2012.08.05
  • Published : 2012.08.31
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Abstract

The effects of annealing on the fine structure and moisture regain of nylon 4 copolymer films were investigated in terms of the content of nylon 4. Nylon 6-ran-nylon 4 (50/50), (30/70), and (0/100) films were prepared using melt pressing and solution casting methods, respectively. The (N6-ran-N4) copolymer films were annealed in a silicon oil bath at 50, 75, 100, 125 and $150^{\circ}C$, and the properties of resultant film were examined by WAXD, DSC, DMTA and moisture regain. The crystal structure in (N6-ran-N4)(50/50) and (30/70) films with increasing annealing temperature was very similar to the gamma phase of nylon 6. The thermal property of (N6-ran-N4)(50/50) and (30/70) films annealed under high temperature exhibit an increase in melting temperature and enthlapy. The result of the tan ${\delta}$ behavior of (N6-ran-N4)(0/100) film was confirmed to the appearance of two ${\alpha}$ transition peaks. The moisture regain of (N6-ran-N4) copolymer films, except in the case of (N6-ranN4)(30/70) films, decreased when the annealing temperature was increased.

Keywords

Acknowledgement

Supported by : 지식경제부

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