Next Article in Journal
Thermal Degradation Kinetics of Sugarcane Bagasse and Soft Wood Cellulose
Previous Article in Journal
Electrospun Ceramic Nanofiber Mats Today: Synthesis, Properties, and Applications
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Materials 2017, 10(11), 1247; doi:10.3390/ma10111247

Waterborne Polyurethane Coatings with Covalently Linked Black Dye Sudan Black B

CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
*
Author to whom correspondence should be addressed.
Received: 17 September 2017 / Revised: 26 October 2017 / Accepted: 26 October 2017 / Published: 28 October 2017
View Full-Text   |   Download PDF [4944 KB, uploaded 30 October 2017]   |  

Abstract

Colored waterborne polyurethanes have been widely used in paintings, leathers, textiles, and coatings. Here, a series of black waterborne polyurethanes (WPUs) with different ratios of black dye, Sudan Black B (SDB), were prepared by step-growth polymerization. WPU emulsions as obtained exhibit low particle sizes and remarkable storage stability at the same time. At different dye loadings, essential structural, statistical and thermal properties are characterized. FTIR (fourier transform infrared) spectra indicate that SDB is covalently linked into waterborne polyurethane chains. All of the WPUs with covalently linked SDB show better color fastness and resistance of thermal migration than those with SDB mixed physically. Besides, WPUs incorporated SDB covalently with different polymeric diols, polytetramethylene ether glycol (PTMG), polypropylene glycol (PPG), poly-1, 4-butylene adipate glycol (PBA) and polycaprolactone glycol (PCL), were prepared to obtain different properties to cater to a variety of practical demands. By a spraying method, the black WPUs can be directly used as metal coatings without complex dyeing process by simply mixing coating additive and other waterborne resins, which exhibit excellent coating performance. View Full-Text
Keywords: sudan black B; waterborne polyurethane; polymeric dye; metal coatings sudan black B; waterborne polyurethane; polymeric dye; metal coatings
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wang, T.; Sun, W.; Zhang, X.; Xu, H.; Xu, F. Waterborne Polyurethane Coatings with Covalently Linked Black Dye Sudan Black B. Materials 2017, 10, 1247.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top