Paper Title:
Improved Water Resistance of Waterborne Polyurethane
  Abstract

The introduction of hydrophilic groups, such as -COOH, -SO3, -OH, -O-, into the polyurethane resin, so that waterborne polyurethane products in the water resistance, solvent resistance, weather and other aspects of performance are worse than solvent borne systems. In our work, to improve the water resistance of the films for waterborne polyurethane, we incorporated C=C bond into the side chain of polyurethane by using pentaerythritol diacrylate as an extension agent. By measuring the cured polyurethane films absorption and mechanical properties, we determine the conditions for UV curing, 3% TMPME, photoinitiator (2959) and to UV light application time for 30s. With the increase of the amount PEDA, water resistance, hardness and tensile strength increase. Furthermore, with the improved water resistance, it is hoped that the performance of waterborne polyurethane can be comparative or superior to the solvent-borne systems.

  Info
Periodical
Advanced Materials Research (Volumes 168-170)
Edited by
Lijuan Li
Pages
1796-1800
DOI
10.4028/www.scientific.net/AMR.168-170.1796
Citation
S. L. Luo, G. F. Gong, J. Q. Deng, G. Shi, H. Zhu, "Improved Water Resistance of Waterborne Polyurethane", Advanced Materials Research, Vols. 168-170, pp. 1796-1800, 2011
Online since
December 2010
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Price
$32.00
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