Terpolymer resin containing bioinspired borneol and controlled release of camphor: Synthesis and antifouling coating application

Jiankun Hu,Baoku Sun,Hailong Zhang,Haichun Zhang,Huiqiu Zhang,Ading Lu

doi:10.1038/s41598-020-67073-8

Jiankun Hu, Baoku Sun + Show 4 more

Open Access

https://doi.org/10.1038/s41598-020-67073-8

Copy DOI

Abstract

Marine biofouling can cause a biocorrosion, resulting in degradation and failure of materials and structures. In order to prevent sea creatures from attaching to the surface, in this work, a new environmentally friendly antifouling coating by incorporating antibacterial polymers and natural antifouling agents has been designed and synthesized. Surface chemical composition and changes in surface hydrophobicity were studied by FTIR spectroscopy and contact angle measurements, respectively. Measurements of mass loss of antifouling resin were also carried out and the release rate of camphor from antifouling coating was tested by using UPLC. It had been found that the changes in the content of triisopropylsilylacrylate (TIPSA) (from 4% to 12%) and isobornyl methacrylate (IBOMA) (from 50% to 16.7%) did not significantly affect the release of camphor. The content of IBOMA decreased from 50% to 16.7%, the antifouling performance of the resin system appeared slightly reduced. In addition, rosin could help regulate the release rate of the resin system to desorb camphor slowly in water in a controlled manner. Furthermore, the antifouling capability of as-prepared samples was evaluated via algae suppression experiments and marine field tests. This study highlighted the environmentally friendly antifouling coating as a potential candidate and efficient strategy to prohibit biofouling in seawater.

Highlights

Marine biofouling can cause a biocorrosion, resulting in degradation and failure of materials and structures
The novel approach employed in the present study is synthesis of an environmentally friendly antifouling coating based on antibacterial polymer and natural antifouling agent
After more than 60 days of immersion, all the samples appeared to have a certain degree of weight loss; the results showed that the weight loss rate was stable within an error range, indicating that the change of TIPSA, isobornyl methacrylate (IBOMA) and butyl methacrylate (BMA) content had no significant effect on the weight loss rate of the resin

Summary

Introduction

Marine biofouling can cause a biocorrosion, resulting in degradation and failure of materials and structures. Measurements of the mass loss of antifouling resins were carried out and the release rate of camphor from antifouling coating was tested by using UPLC.

Results

Conclusion