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Title: Effect of swelling agents on unoriented nylon-6 film-Structural changes
Authors: Bhat, N V
Buch, V H
Kalkar, A K
Keywords: Crystallinity;Nylon-6;Polyamide;Polycaproamide;Shrinkage;Solubility parameter;Solvent pretreatment;Spherulites
Issue Date: Sep-1990
Publisher: NISCAIR-CSIR, India
Abstract: Unoriented nylon-6 films were subjected to aqueous formic acid and benzyl alcohol treatments. Formic acid was found to be more active in causing structural changes. The highest possible formic acid concentration that could be used advantageously was found to be 50% owing to heavy shrinkage at higher concentrations. Solvent-induced crystallization with respect to time of treatment and concentration of solvent revealed entirely different trends. These treatments give rise to shrinkage of films. WAXD and IR spectroscopy revealed that crystallization results in the formation of a large amount of monoclinic ɑ-crystalline form. Scanning electron micrographs revealed significant changes in surface morphology due to solvent etching.
Page(s): 93-99
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.15(3) [September 1990]

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