摘要
为了改善传统水性聚氨酯(WPU)涂层的机械性能(表面硬度和耐磨性),本文采用自行改装的静电喷涂装置制备了多壁碳纳米管(MWCNTs)含量较低的WPU复合涂层,研究了MWCNTs的含量对WPU涂层的表面硬度和耐磨性的影响。结果表明,随着MWCNTs含量的增加,静电喷涂制备的MWCNTs/WPU复合涂层的表面硬度随之升高,耐磨性则先升高后降低。当MWCNTs含量(质量分数)为0.3%时,涂层结构最致密,它的磨损率和摩擦系数分别比纯WPU涂层降低了50.21%和20.59%。研究成果通过进一步中试,有望在海上设备、石油化工行业等防腐领域得到应用。
In order to improve the mechanical properties(such as surface hardness and wear resistance)of traditional waterborne polyurethane(WPU)coatings,a series of WPU composites with low MWCNTs contents were prepared using a self-modified electrostatic spraying device,and the effects of the MWCNT content on the surface hardness and wear resistance of WPU composites were respectively studied.The results show that with an increase in the MWCNT content,the surface hardness of the WPU composite is increased,however,its wear resistance is first increased and then decreased.The structure of the coating with 0.3%(mass fraction)MWCNTs is the best among all the obtained coatings,and its wear rate and friction coefficient are 50.21%and 20.59%lower than those of pure WPU coating,respectively.The results are expected to be used for the anticorrosion fields of offshore equipment and petrochemical industry through further pilot tests.
作者
王芳芳
慈继豪
WANG Fang-fang;CI Ji-hao(School of Material Engineering,Shaanxi Polytechnic Institute,Xianyang 712000,China;College of Energy Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;College of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China)
出处
《中国皮革》
CAS
2023年第4期114-119,共6页
China Leather
基金
陕西省自然科学基础研究计划项目(2022JQ-450)
陕西工业职业技术学院院级科研计划项目(2021YKYB-040)
陕西工业职业技术学院博士科研启动经费项目(BSJ 2021-01)资助。
关键词
碳纳米管
水性聚氨酯复合涂层
表面硬度
耐磨性
carbon nanotubes(CNTs)
waterborne polyurethane(WPU)composites
surface hardness
wear resistance
