轻工学报2025，Vol.40Issue(4)：108-114,7.DOI:10.12187/2025.04.012
天然碱原卤液采集管道防腐涂层的研制及其性能研究
Preparation and performance evaluation of anti-corrosion coatings for natural alkali brine collection pipelines
摘要
Abstract
To address corrosion issues in natural alkali brine collection pipelines,a composite anti-corrosion coating(EP+PDMS@SiO2)was prepared based on epoxy resin(EP)and polydimethylsiloxane(PDMS)as matrix materials,incorporated with octadecyltrichlorosilane(OTS)-modified nano-silica(n-SiO2)particles as fillers.The corrosion resistance of the coating was characterized via Tafel polarization analysis,electrochemical impedance spectroscopy(EIS),and mass loss method.Results indicated that the dosages of n-SiO2 particles and OTS(used as modifier)were critical factors influencing the corrosion resistance of EP+PDMS@SiO2 coatings,with optimal values of 2.1 g(for n-SiO2)and 0.5～1.0 mL(for OTS),respectively.When coated onto N80 steel coupons,the optimized EP+PDMS@SiO2 coating reduced the self-corrosion current and elevated the charge transfer resistance by three orders of magnitude,respectively.The corrosion rate decreased from 2.004 4%to 0.029 2%.These results demonstrate that the OTS-modified n-SiO2-reinforced anti-corrosion coating(EP+PDMS@SiO2)effectively inhibits corrosion in natural alkali brine collection pipelines.关键词
天然碱原卤液/采集管道/防腐涂层/纳米二氧化硅/三氯十八烷基硅烷Key words
natural alkali brine/collection pipeline/anti-corrosion coating/nano-silica/octadecyltrichlorosilane分类
轻工纺织引用本文复制引用
张宏忠,刘振兴,胡万达,鹿一,张硕,吴巴特尔,李团圆..天然碱原卤液采集管道防腐涂层的研制及其性能研究[J].轻工学报,2025,40(4):108-114,7.基金项目
国家自然科学基金面上项目(42277413) （42277413）
