改性硅藻土及PDMS对环氧涂层的阻垢耐蚀性能的影响  

Effects of Modified Celatom and PDMS on Antiscaling and Corrosion Resistance of Epoxy Coatings

作　　者：陈茜茜 汪怀远[1,2] 张文博 李洪伟 张晓莹[1] 朱艳吉 CHEN Xixi;WANG Huaiyuan;ZHANG Wenbo;LI Hongwei;ZHANG Xiaoying;ZHU Yanji(Chemistry and Chemical Engineering College,Northeast Petroleum University,Daqing 163000,China;School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)

机构地区：[1]东北石油大学化学与化工学院,大庆163000 [2]天津大学化工学院,天津300072

出　　处：《中国表面工程》2019年第4期102-108,共7页China Surface Engineering

基　　金：万人计划青年拔尖人才(2013042);国家自然科学基金(21676052,21606042)。

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(1010Ω/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%。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 1010Ω/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.

关 键 词：硅藻土 氨基硅油 阻垢 防腐 功能涂层 

分 类 号：TG174.46[金属学及工艺—金属表面处理] TB333.23[金属学及工艺—金属学]