Steam and heat setting of nylon 6 fiber. VI. Water adsorption on nylon 6 fiber

✍ Scribed by A. Koshimo; T. Tagawa

• Publisher: John Wiley and Sons
• Year: 1965
• Tongue: English
• Weight: 450 KB
• Volume: 9
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1965.070090107

✦ Synopsis

Water adsorption of nylon 6 fibers subjected to various heat-aetting treatments waa measured over the range of &SO% R.H. with a quartz balance, and the water adsorbed on the 6rat layer (urn) waa calculated. The value of urn waa largest for uneet fibr, intermediate for steam-eet fiber, and the smallest for dry-heahet fiber. The inner surface are^ in nylon calculated from v,,, are 4-5 X 1W cm.*/g. The value obtained by dividing vm by the amorphoua fraction (1a) of heat-& fibers appeam to be related to the number of intermolecular bond per unit volume of the amorphous region. The smaller values of urn thus obtained for the dry-heat-aet fibem indicate that polymer molecules in the amorphoua region form many intermolecular bonds and are more closely packed than those in the unaet and steam-& fibers.