化工学报2025，Vol.76Issue(2)：787-796,封4,11.DOI:10.11949/0438-1157.20240656
强韧P(SBMA-co-AAc)/SiO2复合水凝胶海洋防污减阻涂层
High strength and toughness P(SBMA-co-AAc)/SiO2 composite hydrogel marine antifouling and drag-reducing coating
摘要
Abstract
A composite hydrogel was prepared by copolymerization of zwitterionic betaine methacrylate sulfonate(SBMA)with acrylic acid(AAc)and addition of fumed SiO2 nanoparticles,P(SBMA-co-AAc)/SiO2,in which both the chemical crosslinking and physical crosslinking coexist.The addition of SiO2 particles effectively reduces the relative swelling degree of the hydrogel in water and seawater,and significantly improves the tensile strength and modulus of the hydrogel.The tensile strength and Young's modulus in seawater can reach 662 kPa and 429 kPa,respectively,and the compressive modulus is 225 kPa.At the same time,it has high elongation at break.The hydrogel coating has excellent drag reduction effect and exhibits a low friction coefficient under high sliding speed.The friction coefficient with the glass surface can be as low as 0.004 under a load of 1 N.The composite hydrogel also shows excellent anti-protein adsorption and antibacterial properties.The hydrogel coating could be adhered on the surface of tinplate sheet with high adhesion energy.P(SBMA-co-AAc)/SiO2 composite hydrogel has simple preparation process and low cost,which provides a reference for the application of antifouling and drag-reducing hydrogel coating.关键词
两性离子水凝胶/复合材料/二氧化硅/纳米粒子/力学性能/防污减阻Key words
zwitterionic hydrogel/composites/silica/nanoparticles/mechanical property/antifouling and drag-reduction分类
化学化工引用本文复制引用
李文宝,胡锦鹏,杜淼,潘鹏举,单国荣..强韧P(SBMA-co-AAc)/SiO2复合水凝胶海洋防污减阻涂层[J].化工学报,2025,76(2):787-796,封4,11.基金项目
山西浙大新材料与化工研究院研发项目(2022SZ-TD008) （2022SZ-TD008）
