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Bonding in cotton fiber from formaldehyde‐free crosslinks
Author(s) -
Frick J. G.
Publication year - 1985
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.1985.070300827
Subject(s) - formaldehyde , wrinkle , materials science , fiber , composite material , polymer chemistry , swelling , chemistry , organic chemistry
Cotton fabric was crosslinked with five agents, three of which were prepared form formaldehyde and two of which were formaldehyde‐free. The formaldehyde‐free agents produced less bonding between layers in the laminated microstructure of the cotton fiber. One agent, 4,5‐dihydroxy‐1,3‐dimethyl‐2‐imidazolidinone, gave no evidence of any interlayer bonding. All five agents gave the same relationship between wrinkle recovery angle and molar substitution on the cotton up to moderate recovery angles, but only agents based on formaldehyde gave higher wrinkle recovery angles with additional reaction. Intralayer crosslinking did not reduce absorptivity, as shown by moisture regain and dye receptivity, but did restrict swelling in cupriethylenediamine hydroxide to the same extent as combined interlayer and intralayer crosslinking. The decrease in extensibility of treated fabric with increasing wrinkle recovery angle was the same with all agents. These results indicate the regions of the fiber that are important for each of these properties.