Water-Erodible Xanthan-Acrylate-Polyurethane Antifouling Coating

Mohammad Mizanur Rahman; Md Hasan Zahir; Mohammad Abu Jafar Mazumder; A Madhan Kumar

doi:10.3390/polym11101700

Water-Erodible Xanthan-Acrylate-Polyurethane Antifouling Coating

Polymers (Basel). 2019 Oct 16;11(10):1700. doi: 10.3390/polym11101700.

Authors

Mohammad Mizanur Rahman¹, Md Hasan Zahir², Mohammad Abu Jafar Mazumder³, A Madhan Kumar⁴

Affiliations

¹ Center of Research Excellence in Corrosion, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia. mrahman@kfupm.edu.sa.
² Center of Research Excellence in Renewable Energy, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia. hzahir@kfupm.edu.sa.
³ Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia. jafar@kfupm.edu.sa.
⁴ Center of Research Excellence in Corrosion, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia. madhankumar@kfupm.edu.sa.

Abstract

Biopolymer xanthan (Xn) and its functionalized polymer xanthan acrylate (XnAc) were used to improve the antifouling properties of synthesized waterborne polyurethane (WBPU) coatings, namely, WBPU-Xn and WBPU-XnAc. XnAc was synthesized by functionalization of xanthan (Xn) using polyacrylic acid. Coating hydrophilicity, adhesive strength, and erosion all varied with the Xn and XnAc contents. A moderate erosion rate was recorded only for the WBPU-XnAc coating. A good antifouling property for longer time was found in the WBPU-XnAc coating using zinc pyrithione as a biocide in the field test.

Keywords: Waterborne polyurethane; antifouling; xanthan.