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Degradation cracking of poly(ethylene terephthalate) filaments by methylamine and N ‐propylamine
Author(s) -
Haghighat Kish M.,
Borhani S.
Publication year - 2000
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 - 10.1002/1097-4628(20001209)78:11<1923::aid-app110>3.0.co;2-u
Subject(s) - methylamine , propylamine , aqueous solution , ethylene , cracking , materials science , degradation (telecommunications) , polymer chemistry , poly ethylene , chemical engineering , composite material , chemistry , amine gas treating , organic chemistry , catalysis , telecommunications , computer science , engineering
Poly(ethylene terephthalate) (PET) filaments were degraded with aqueous solutions of n ‐propylamine and methylamine. The treated materials were examined by chemical microscopy and physical and mechanical methods. After partial degradation by aqueous solutions of amines, the surfaces of the filaments cracked. Direct observations of the cracking pattern formation and the changes in the physical properties of the filaments led to an explanation for the cracking pattern formation. The cracked patterns showed the swelled and deformed structure of the filaments. This explanation of the possible mechanisms for crack formation goes further than those discussed in previous research. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 1923–1931, 2000