Abstract: ［Objective］To address the issues of insufficient high-temperature resistance and poorcorrosion resistance of traditional protective coatings for waste incineration boilers.［Methods］A new type of anti-coking and anticorrosive coating was developed based on the synergistic effect of hybridmetal oxides and modified silica sol-gel. The coating structure was characterized by Scanning ElectronMicroscopy（SEM）， X-ray Diffractometer（XRD）， and Fourier Transform Infrared Spectrometer（FT-IR）. The comprehensive performance of the coating was investigated by pencil hardness testing，drop-weight impact testing，high-temperature sintering and salt spray corrosion tests.［Results］The pencil hardness of the coating reached 4H，the impact resistance was 63 cm，and it could withstand sintering at 1 800 ℃. The coating was not affected in the 39-day salt spray test.［Conclusion］Hybridmetal oxides combined with modified silica sol-gel can significantly improve the anti-coking andanticorrosive performance of the coating. 

Key words: inorganic anticorrosive coating, high temperature resistance, hybrid metal oxides, modified silica sol-gel

摘要： 【目的】解决传统垃圾焚烧锅炉防护涂料高温耐受性不足、耐腐蚀性差等问题。【方法】开发了一种基于复配金属氧化物与改性硅溶胶的协同作用的新型抗结焦防腐涂层。采用扫描电子显微镜（ SEM）、 X射线衍射仪（ XRD）及傅立叶变换红外光谱仪（ FT-IR）对涂层结构进行表征。采用铅笔硬度、落锤冲击、高温烧结和盐雾腐蚀试验研究了涂层的综合性能。【结果】涂层的铅笔硬度达到 4H，耐冲击性为 63 cm，耐 1 800 ℃烧结， 39 d的盐雾试验涂层不受影响。【结论】复配金属氧化物与改性硅溶胶能显著改善涂层的抗结焦防腐性能。

关键词: 无机防腐涂料, 耐高温, 复配金属氧化物, 改性硅溶胶

CLC Number: 

• TQ637. 6