【摘要】 使用超重力技术制备了富马酸根插层的镁铝层状双氢氧化合物（LDH-Fu）浆液，经水热处理后得到LDH-Fu粉末。利用X射线衍射仪（XRD）、傅里叶变换红外光谱仪（FT-IR）、X射线光电子能谱仪（XPS）及场发射扫描电子显微镜（FESEM）对LDH-Fu粉末进行了表征，结果表明与NO^-₃插层的LDH（LDH-NO^-₃）相比，LDH-Fu呈现出更加规则的六边形，并且分散性也更好。测试了富马酸根在0.01 mol/L NaCl溶液中从LDH层间释放的速度，结果表明LDH-Fu能对腐蚀性离子做出快速响应，并且能保持长时间的释放。将一定量的LDH-Fu添加到水性环氧树脂中，涂布在马口铁样板上，通过浸泡试验和盐雾试验测试了水性涂层的耐腐蚀性能，结果表明：在LDH-Fu添加量为0～7%（质量分数）的范围内，添加3%LDH-Fu的水性涂层具有最佳的防护性能；与添加3%LDH-NO^-₃相比，添加3%LDH-Fu的水性涂层具有更好的耐腐蚀性能。更多还原

【Abstract】 Fumarate-intercalated Mg-Al layered double hydroxide（LDH-Fu） slurries have been prepared by high gravity technology, and LDH-Fu powder was obtained after hydrothermal treatment. The LDH-Fu powder was characterized by X-ray diffraction（XRD）, Fourier transform infrared spectroscopy（FT-IR）, X-ray photoelectron spectroscopy（XPS） and field emission scanning electron microscopy（FESEM）. The results showed that LDH-Fu exhibited more regular hexagons and better dispersion compared to NO^-₃-intercalated LDH（LDH-NO^-₃）. The release rate of fumarate from the LDH interlayer galleries in 0.01 mol/L NaCl solution was measured, and the results showed that LDH-Fu could respond quickly to corrosive ions and maintain a long-term release. A certain amount of LDH-Fu was added to the waterborne epoxy resin and coated on a tinplate sample. The corrosion resistance of the waterborne coating was tested by immersion tests and salt spray tests. The results showed that in the range of LDH-Fu addition of 0-7%（mass fraction）, the waterborne coating with 3% LDH-Fu has the best corrosion protection performance. Compared with the addition of 3% LDH-NO^-₃, the waterborne coating with 3% LDH-Fu has better corrosion resistance.更多还原