Silicone-modified polyurea-interpenetrating polymer network fouling release coatings with excellent wear resistance property tailored to regulations

Hongxia Wang; Rongrong Chen; Dalei Song; Gaohui Sun; Jing Yu; Qi Liu; Jingyuan Liu; Jiahui Zhu; Peili Liu; Jun Wang

doi:10.1016/j.jcis.2023.09.129

Silicone-modified polyurea-interpenetrating polymer network fouling release coatings with excellent wear resistance property tailored to regulations

J Colloid Interface Sci. 2024 Jan;653(Pt A):971-980. doi: 10.1016/j.jcis.2023.09.129. Epub 2023 Sep 22.

Authors

Hongxia Wang¹, Rongrong Chen², Dalei Song³, Gaohui Sun¹, Jing Yu¹, Qi Liu⁴, Jingyuan Liu⁴, Jiahui Zhu¹, Peili Liu⁵, Jun Wang⁴

Affiliations

¹ Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
² Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Nanhai Institute of Harbin Engineering University, Hainan 572024, China. Electronic address: chenrongrong@hrbeu.edu.cn.
³ Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China. Electronic address: songdalei@hrbeu.edu.cn.
⁴ Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Nanhai Institute of Harbin Engineering University, Hainan 572024, China.
⁵ Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China. Electronic address: peililiu@163.com.

PMID: 37776724
DOI: 10.1016/j.jcis.2023.09.129

Abstract

The invasion of alien species via marine organisms attaching to the surfaces of ship hulls is a growing problem. A number of countries have introduced corresponding regulations to combat ship biofouling. One effective way to solve this problem is to apply a fouling release coating with excellent wear resistance. In this study, a silicone-modified polyaspartic ester polyurea was synthesized by a simultaneous crosslinking polymerization. Polyaspartic ester polyurea is employed to form a tightly cross-linked network with excellent toughness and outstanding adhesion, while polydimethylsiloxane is used to form a relatively soft cross-linked network with low surface energy and surface elasticity modulus. Polyurea and silicone molecular chain lock onto each other to form interpenetrating polymer network (IPN) through their respective polymerization systems and cross-linking processes. The synergy between silicone and polyurea provides excellent mechanical properties as well as fouling release performance through the locking mechanism. This study provides a promising and universal strategy for the development of fouling release coatings with excellent wear resistance.

Keywords: Fouling release; Polyaspartic ester polyurea; Polydimethylsiloxane; Wear resistance.