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Effects of calcium ion on polyester-type polyurethane emulsion and properties of polyurethane film

✍ Scribed by Zhaowen Lou; Jun Luo; Hongju Zhan

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
62 KB
Volume
91
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

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

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