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http://dx.doi.org/10.12772/TSE.2012.49.4.232

Fine Structure and Physical Properties of Nylon 4 Copolymer (III) - Effect of the Contents of Nylon 4 -  

Lee, Sun Hee (Department of Fashion Design, Dong-A University)
Cho, Hyun Hok (Department of Organic Materials Science and Engineering, Pusan National University)
Publication Information
Textile Science and Engineering / v.49, no.4, 2012 , pp. 232-239 More about this Journal
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
nylon 4; nylon 6-ran-nylon 4 copolymer; films; crystal structure; thermal property; moisture regain;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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