表面技术2017，Vol.46Issue(2)：40-45,6.DOI:10.16490/j.cnki.issn.1001-3660.2017.02.006
模拟青铜文物粉状锈表面的超疏水制备及表征
Preparation and Characterization of Super-hydrophobic Film on Simulated Surface of Bronze with Powdery Rust
摘要
Abstract
The work aims to prove that the research on the surface properties of powdery rust of bronze relics has an impor-tant significance on building reasonable and effective protection methods as the powdery rust will cause serious damage to bronze relics. Through self-assembly technology, the 3-mercaptopropyl trimethoxysilane (MPTS) and n-octyltriethoxysilane (OS) composite film on the surface of bronze test piece contaminated with powdery rust was prepared. The Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and contact angle meter were used to characterize and ana-lyze the surface morphology and structure features of composite film. And the electrochemical test was carried out to study the corrosion resistance of test piece. FTIR and SEM showed that the silanecomposite film was well formed on the powdery rust surface of the test piece. After self-assembled, the surface of test piece was super-hydrophobic, and the contact angle was in-creased from 86.3° to 155.2°. About 91.3% of the contact area between the water droplet and the test piece surface was the liq-uid/gas interface. Only a small part of liquid was in contact with the test piece. The anti-corrosion property of self-assembled test piece was greatly improved. The self-corrosion current density Jcor of test piece was reduced from 2.58×10-2 mA/cm2 to 1.081×10-3 mA/cm2, and the corrosion inhibition efficiency reached 95.81%. The silane composite film could form a protective film on the powdery rust surface of the test piece, so as to isolate the contact between the test piece and the liquid effectively, thus making it super hydrophobic, and improving its corrosion resistance.关键词
粉状锈/青铜/超疏水/自组装/硅烷/耐蚀性Key words
powdery corrosion/bronze/super-hydrophobic/self-assembly/silane/corrosion resistance分类
矿业与冶金引用本文复制引用
伍思敏,闫莹,白钟庆,周浩,吴来明,林颖,蔡兰坤..模拟青铜文物粉状锈表面的超疏水制备及表征[J].表面技术,2017,46(2):40-45,6.基金项目
学生创新创业训练计划项目(x14088) （x14088）
上海市科委科研计划重点支撑项目(13231203000)Supported by the Student Innovation and Entrepreneurship Training Program(x14088) and the Shanghai Municipal Science and Tech-nology Research Program for Key Projects(13231203000) （13231203000）
