Premium
Formaldehyde‐free zein fiber—preparation and investigation
Author(s) -
Yang Yiqi,
Wang Liming,
Li Shiqi
Publication year - 1996
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/(sici)1097-4628(19960118)59:3<433::aid-app7>3.0.co;2-q
Subject(s) - formaldehyde , spinning , fiber , tenacity (mineralogy) , materials science , aqueous solution , citric acid , boiling , acetic acid , chemical engineering , elongation , composite material , polymer chemistry , chemistry , organic chemistry , engineering , ultimate tensile strength
A novel dry‐spinning method for the preparation of zein fiber without using formaldehyde is presented. The fiber thus obtained had good stability to boiling aqueous acetic acid solution with breaking tenacity and elongation of 1.0 g/d and 30%, respectively. Citric acid and butanetetracarboxylic acid were used as nonformaldehyde crosslinking agents for the preparation of zein fiber successfully. Using polycarboxylic acids have advantages such as no toxicity and low sensitivity to the variation of processing conditions over formaldehyde containing stabilizers. The effects of crosslinking before and after stretching on improvement of fiber properties were discussed. Fiber morphological structure was also examined by means of wide angle x‐ray diffraction and sonic velocity. © 1996 John Wiley & Sons, Inc.