摘要
水凝胶材料由于其独特的含水交联网络结构,具有优越的亲水、润滑、耐磨、生物相容等特性,是近年来发展极为迅速的高分子材料之一,被广泛用于药物传输、软体机器人、可植入器官、传感器等生物医学等工程领域。在腐蚀防护领域,水凝胶材料由于其独特性质逐渐受到学者的关注,成为了新兴腐蚀防护材料之一。通过文献综述的方法,对化学交联法与物理交联法两种水凝胶的主要制备方法进行对比,对两种方法制备的水凝胶材料的结构和性质进行了对比,进一步分析了水凝胶材料具有的独特性质,及其在腐蚀防护领域的应用潜力。其中化学交联制备出的水凝胶,其稳定性好,力学强度高,具有良好的耐磨防污性,可制备出性能优异的海洋防污涂层。物理交联制备的水凝胶由于其内部具有三维网络空间结构可负载缓蚀剂,且其内部存在大量的动态可逆键,具有环境响应性,能随着环境pH、温度等变化而改变自身溶胀程度,从而改变负载在水凝胶中的缓蚀剂的释放速率。因此,对比传统固体缓蚀剂和液体缓蚀剂,水凝胶智能缓蚀剂对金属有着更长效的腐蚀防护性能,具有良好的应用前景。根据水凝胶材料的独特性质,着重分析了水凝胶材料在腐蚀防护领域的应用现状,并对研究前景进行了分析。目前制备水凝胶涂层多经过表面预处理、配制预凝胶溶液、交联固化等步骤,并且水凝胶涂料可在不同材料、形状基底上进行涂覆,为水凝胶防腐涂层的发展奠定了基础。
Due to its unique water-containing cross-linked network structure,the hydrogel material has excellent hydro-philic,lubricating,wear-resistant,biocompatible and other characteristics.And the hydrogel material is one of the rapidly deve-loping polymer materials in recent years.Functional hydrogel materials are widely used in biomedical engineering fields such as drug delivery,soft robotics,implantable organs and sensors.Then,in the field of corrosion protection,the unique properties of hydrogel material have gradually attracted the attention of scholars and the hydrogel becomes one of the emerging corrosion protection materials.In this paper,the main preparation methods of chemical cross-linking method and physical cross-linking method are compared.And the structure and properties of the hydrogel materials prepared by the two methods are compared in the paper.In this paper,the unique properties of hydrogel materials and their application potential in the field of corrosion protection are analyzed.The hydrogel prepared by chemical crosslinking has good stability,high mechanical strength,good wear resistance and antifouling properties.Then it can prepare marine antifouling coatings with excellent performance.The surface of medical equipment and marine ships is often prone to a layer of oil or organic matter,which allows microorganisms to multiply and accumulate here to form a microbial mucous membrane.The metabolites of microorganisms are often acidic and can cause corrosion of metal substrates.However,due to the good hydrophilic and oleophobic properties of hydrogels,it is difficult for oil stains to adhere to the surface of the hydrogel coating,which can reduce the corrosion of metals by microor-ganisms.Therefore,the good hydrophilic and oleophobic properties,low friction and self-healing properties of functional hydro-gels are often used to prepare hydrogel coatings for marine anti-fouling-anti-corrosion coatings,mechanical skins and oil-water separation membranes.The hydrogel prepared by physical cross-linking ha
作者
漆鹏飞
林冰
瞿建波
孟林
张海龙
郑宏鹏
王莹莹
唐鋆磊
黎红英
QI Peng-fei;LIN Bing;QU Jian-bo;MENG Lin;ZHANG Hai-long;ZHENG Hong-peng;WANG Ying-ying;TANG Jun-lei;LI Hong-ying(School of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China;AECC Chengdu Engine Co.,Ltd.,Chengdu 610503,China;No.2 Oil Production Plant of Xinjiang Oilfield Company,Xinjiang Karamay 834008,China;Key Laboratory of Optoelectronic Chemical Materials and Devices(Ministry of Education),Jianghan University,Wuhan 430056,China;Northwestern Polytechnical University,Xi'an 710072,China)
出处
《表面技术》
EI
CAS
CSCD
北大核心
2023年第4期100-111,共12页
Surface Technology
基金
四川省2020年度博士后科研项目特别资助
四川省重大科技专项(2019YFG0384)
四川省科技计划项目(2021YFSY0055)。
关键词
水凝胶
制备方法
多孔结构
刺激响应性
腐蚀防护
hydrogels
preparation
porous structure
stimulus responsiveness
corrosion protection
