Evaluation on Fabrication and Properties of Composite Polyurethane Coatings with Wollastonite Partially Substituting for Rutile Titanium Dioxide

This study aims to prepare a composite polyurethane coating through a facile synthesis process. Titanium dioxide, which is a component of the prepared hydroxyl acrylic resin polyurethane varnish, was partially substituted by wollastonite, and an optimal substitution ratio was obtained. Analyses base...

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Bibliographic Details
Published in:Transactions of Tianjin University 2019-06, Vol.25 (3), p.293-300
Main Authors: Wang, Xiaojing, Zhang, Wei, Yan, Yangyang, Wang, Jing, Wang, Xiyao
Format: Article
Language:English
Subjects:
Acrylic resins
Electron microscopes
Engineering
Humanities and Social Sciences
Mechanical Engineering
Moisture resistance
multidisciplinary
Performance tests
Polyurethane resins
Production costs
Raman spectra
Research Article
Science
Substitutes
Thermal stability
Titanium
Titanium dioxide
Water resistance
Wollastonite
X ray powder diffraction
X-ray diffraction
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Summary:This study aims to prepare a composite polyurethane coating through a facile synthesis process. Titanium dioxide, which is a component of the prepared hydroxyl acrylic resin polyurethane varnish, was partially substituted by wollastonite, and an optimal substitution ratio was obtained. Analyses based on scanning electron microscope, powder X-ray diffraction, and Raman scattering measurements demonstrated that the addition of wollastonite caused nearly no change in the basic structure of the coating. Coating with a substitution ratio of 25% showed high thermal stability, good cover effect, considerable moisture-proof and water resistance ability, great acidic and basic resistance, and improved performance and hardness in performance tests. Furthermore, the production cost was reduced significantly at this substitution ratio.
ISSN:1006-4982
1995-8196
DOI:10.1007/s12209-018-0179-x