| 摘要: |
| 利用氨基硅油改性的硅藻土(Si-ASO)，结合聚二甲基硅氧烷(PDMS)设计了一种有机硅环氧树脂基(EP)复合功能涂层(EP/Si-ASO/PDMS)用于金属表面的防垢和防腐。采用扫描电镜、电化学测试、摩擦测试等对涂层性能进行表征。结果表明，EP/Si-ASO/PDMS复合涂层具有独特的防垢性能，涂层表面的CaCO3沉积量与EP/Si涂层相比减少了45%。耐腐蚀试验证明EP/Si-ASO/PDMS复合涂层具有优异的耐蚀性，制备的EP/Si-ASO/PDMS复合涂层在3.5% NaCl溶液中浸泡34 d后仍然保持着较高的阻抗模量(1010 Ω/cm2左右)。摩擦实验表明EP/Si-ASO/PDMS复合涂层具有良好的耐摩擦性，经过5000转摩擦后，质量损失仅为EP/Si涂层的26.47%。 |
| 关键词: 硅藻土 氨基硅油 阻垢 防腐 功能涂层 |
| DOI：10.11933/j.issn.1007-9289.20190106001 |
| 分类号:TG174.46;TB333.23 |
| 基金项目:万人计划青年拔尖人才(2013042)；国家自然科学基金(21676052，21606042) |
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| Effects of Modified Celatom and PDMS on Antiscaling and Corrosion Resistance of Epoxy Coatings |
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CHEN Xixi1, WANG Huaiyuan1,2, ZHANG Wenbo1, LI Hongwei1, ZHANG Xiaoying1, ZHU Yanji2
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1.Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, China;2.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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| Abstract: |
| The celatom particles modified (Si-ASO) were combined with polydimethylsiloxane (PDMS) to design an organosilicon epoxy resin-based (EP) composite functional coating (EP/Si-ASO/PDMS) for antiscaling and anti-corrosion on metals. The properties of coatings were characterized by scanning electron microscope (SEM), electrochemical workstation and friction testing machine. Results show that the EP/Si-ASO/PDMS composite coating exhibits unique antiscaling properties with the deposition of CaCO3 on the coating surface decreasing by 45% compared with that of the EP/Si coating. At the same time, the corrosion resistance test proves that the EP/Si-ASO/PDMS composite coating has excellent corrosion resistance with the high impedance modulus (above 1010 Ω/cm2) after immersion in 3.5% NaCl solution for 34 days. Additionally, the friction test shows that the EP/Si-ASO/PDMS composite coating has marvelous rubbing resistance with the weight loss only 26.47% of the EP/Si coating after 5000 cycles of rotational friction. |
| Key words: celatom amino silicon oil antiscaling corrosion protection functional coating |
