Structure and properties of high-speed spun fibers of nylon 6

✍ Scribed by Shigemitsu Murase; Masaru Kashima; Kazushige Kudo; Matsuo Hirami

• Book ID: 102941736
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 636 KB
• Volume: 198
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1997.021980228

✦ Synopsis

Abstract

Structure and properties of high‐speed spun fibers of nylon 6 were studied in the range of take‐up speeds from 5 to 12 km/min. With increasing take‐up speed, Young's modulus increased uniformly, while tenacity passed through a maximum at 8 km/min. WAXD data demonstrated the increase in the perfectness of the crystalline state with increasing take‐up speed. First, the γ‐form crystal structure predominated up to 9 km/min along with increase in its crystal size; second, in the range of 9 to 12 km/min, the a‐form crystal structure appeared and developed as reflected by the increase in its crystal perfection. The structure‐properties relationships are discussed, and it is indicated that the increasing tendency of Young's modulus over 9 km/min can be attributed to the development of the a‐form crystals.