Preparation and properties of silane coupling agent modified steel slag as functional filler for anti-corrosion coating
作者机构：School of Metallurgical EngineeringAnhui University of TechnologyMa’anshan 243032AnhuiChina Key Laboratory of Metallurgical Emission Reduction and Resources Recycling(Anhui University of Technology)Ministry of EducationMa’anshan 243002AnhuiChina School of Civil Engineering and ArchitectureAnhui University of TechnologyMa’anshan 243032AnhuiChina Department of Chemical and Biochemical EngineeringWestern UniversityLondonON N6A 3K7Canada Shanghai Baosteel New Building Materials Technology Co.Ltd.Shanghai 201900China Shougang Jingtang United Iron&Steel Co.Ltd.Tangshan 063200HebeiChina Zhanjiang Baosteel New Building Materials Technology Co.Ltd.Zhenjiang 524047GuangdongChina Guilin Hongcheng Mining Equipment Manufacture Co.Ltd.Guilin 541000GuangxiChina
出 版 物：《Journal of Iron and Steel Research(International)》 (钢铁研究学报（英文版）)
年 卷 期：2023年第30卷第4期
页 面：708-716页
核心收录：
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0708[理学-地球物理学] 0816[工学-测绘科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：the University Synergy Innovation Program of Anhui Province(GXXT-2020-072).
主 题：Steel slag Silane coupling agent Modification Epoxy coating Inorganic filler
摘 要：The chemical composition and high wear resistance of steel slag(SS)make it a potential alternative to traditional inorganic fillers.3-Aminopropyltriethoxysilane(KH550)modified steel slag(MSS)was successfully prepared,and its application in epoxy(EP)anti-corrosion coating was introduced.Due to the grafting of silane coupling agent functional groups onto the surface of SS,MSS exhibited improved solubility in xylene organic solvent and reduced agglomeration.When the MSS content was 15 wt.%,the contact angle of the MSS/EP composite coating was 101°,and the abrasion was only 0.07 g,compared with 56.2°and 0.13 g,respectively,for the pure EP coating.The corrosion resistance of coatings was investigated by performing the electrochemical test(impedance)after immersion in a 3.5 wt.%NaCl solution.The electrochemical test results showed that the impedance modulus of the 15 wt.%MSS/EP composite coating at low frequency(Z_(f)=0.01 Hz)was approximately 1.08×10^(7)Ωcm^(2),which was two orders of magnitude higher than that of the pure EP coating.
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