Presently, a wide range of polyurethane adhesives can be obtained using different kinds of polyols and isocyanates. However, the applied temperature of the polyurethane adhesive is not more than 80°C. The film of polyurethane adhesive will be softened and deformed when its applied temperature is more than 100°C. Thus, the mechanical property of the polyurethane adhesive is decreased clearly, which limits its further application. The purpose of the study is to improve the heat resistance of polyols, especially polyester polyols and its resultant polyurethane adhesives.
The more rigid benzene ring is introduced into the polyester polyols to improve the heat resistance of its resultant polyurethane adhesive.
The more rigid benzene ring has ben introduced into the polyester polyols and the heat resistance of its resultant polyurethane adhesive is improved.
The polyester polyols with more rigid benzene ring have been prepared successfully by the vacuum melting method when diethylene glycol, neopentyl glycol, 1,6-hexanediol, ethanediol, isophthalic acid, terephthalic acid, sebacic acid and adipic acid are used as raw materials and tetra-isopropyl titanate is adopted as the catalyst.
This work has been supported by the Open Project of Zhejiang Provincial Environmental Protection Printing Ink Engineering Technology Research Centre under Grant No. XDF2014GCKF001.
Xu, T., Zhang, C. and Chen, L. (2016), "Synthesis and characterisation of heatproof polyester polyols used in polyurethane adhesive", Pigment & Resin Technology, Vol. 45 No. 6, pp. 439-443. https://doi.org/10.1108/PRT-11-2015-0109Download as .RIS
Emerald Group Publishing Limited
Copyright © 2016, Emerald Group Publishing Limited