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Studies on dyeing and mechanical properties of nylon 6 filaments subjected to swelling treatments
Author(s) -
Subramanian D. R.,
Venkataraman A.,
Bhat N. V.
Publication year - 1982
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1982.070271106
Subject(s) - swelling , elongation , dyeing , materials science , slippage , formic acid , composite material , aqueous solution , phenol , nylon 6 , polymer chemistry , chemical engineering , chemistry , polymer , organic chemistry , ultimate tensile strength , engineering
Drawn nylon 6 filaments were subjected to swelling treatment with benzyl alcohol and aqueous solution of phenol and formic acid under slack condition and under tension. The pretreated samples were dyed with a disperse dye Foron Yellow SE‐FL (C.I. Disperse Yellow 42). A considerable increase in the equilibrium dye uptake was observed as a result of swelling treatment. Studies on lateral order by X‐ray methods showed that lateral order has increased considerably as a result of preswelling treatment. This apparent contradiction, viz., increase in lateral order and at the same time increase in dye upstake, is explained as due to increased void volume. Studies on mechanical properties showed that the percentage elongation is increased as a result of swelling treatment under slack condition in spite of increased lateral order. This is explained as due to the slippage of chain‐folded crystallites.