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Effects of calcium ion on polyester‐type polyurethane emulsion and properties of polyurethane film
Author(s) -
Lou Zhaowen,
Luo Jun,
Zhan Hongju
Publication year - 2003
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.13264
Subject(s) - polyurethane , adipate , ultimate tensile strength , emulsion , materials science , polyester , chemical engineering , toluene diisocyanate , composite material , diol , toluene , calcium , polymer chemistry , nuclear chemistry , chemistry , organic chemistry , metallurgy , engineering
Polyurethane (PU) emulsions were prepared from polytetramethylene adipate diol, toluene diisocyanate, dimethanol propionic acid, and so forth. The effects of calcium ion on the stability of PU emulsion as well as on the water‐resistance property, tensile strength, and tensile yield of PU film were discussed. The results show that calcium ion can quickly damage the stability of PU emulsion. Meanwhile, calcium ion can distinctly counteract the unfavorable effects water has on the tensile properties of PU film. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 1285–1288, 2004