In the study organic-inorganic hybrid composite, epoxy modified silicone coating and vinyl ester flake mastic were comparatively used as several anti-corrosion materials that provided protection for flue gas desulfu-r...In the study organic-inorganic hybrid composite, epoxy modified silicone coating and vinyl ester flake mastic were comparatively used as several anti-corrosion materials that provided protection for flue gas desulfu-rization (FGD). The relationship between curing conversion rate of hybrid polymer and temperature was investigated by differential scanning calorimeter (DSC). The adhesion strength, coefficient of thermal expansion and flame retardant properties of three anti-corrosion materials were measured and analyzed. A corrosion test in 8% H2SO4 and 5% HCl at temperature cycle of 40°C~ 160°C was applied to study corrosion resistance of several anti-corrosion materials. Gravimetric measurement and morphological observation of three materials before and after corrosion test were comparatively analyzed in the paper. The small weight change and good morphological structure of hybrid composite during corrosion test demonstrate that hybrid composite has better anti-corrosion properties than epoxy modified silicone coating and vinyl ester flake mastic.展开更多
针对现有的管道防腐蚀技术涂层材料质量差、预测腐蚀速率精度低等问题,提出了一种外加电流阴极保护(Impressed Current Cathodic Protection,ICCP)系统结构。通过阴极保护(Cathodic Protection,CP)仪表监测管道表面电位,选用超疏水涂层...针对现有的管道防腐蚀技术涂层材料质量差、预测腐蚀速率精度低等问题,提出了一种外加电流阴极保护(Impressed Current Cathodic Protection,ICCP)系统结构。通过阴极保护(Cathodic Protection,CP)仪表监测管道表面电位,选用超疏水涂层作为管道的缓蚀剂。研究基于CenterNet构建深度学习预测模型,通过将正常电位和腐蚀电位视为袋子并将管道表面电位视为袋子中的样本,利用分类中性能指标特征曲线下面积(Area Under Curve,AUC)来预测管道腐蚀情况。结果表明:该预测模型精准度更高,在预测2021年管道的腐蚀速率误差为0%。展开更多
文摘In the study organic-inorganic hybrid composite, epoxy modified silicone coating and vinyl ester flake mastic were comparatively used as several anti-corrosion materials that provided protection for flue gas desulfu-rization (FGD). The relationship between curing conversion rate of hybrid polymer and temperature was investigated by differential scanning calorimeter (DSC). The adhesion strength, coefficient of thermal expansion and flame retardant properties of three anti-corrosion materials were measured and analyzed. A corrosion test in 8% H2SO4 and 5% HCl at temperature cycle of 40°C~ 160°C was applied to study corrosion resistance of several anti-corrosion materials. Gravimetric measurement and morphological observation of three materials before and after corrosion test were comparatively analyzed in the paper. The small weight change and good morphological structure of hybrid composite during corrosion test demonstrate that hybrid composite has better anti-corrosion properties than epoxy modified silicone coating and vinyl ester flake mastic.
文摘针对现有的管道防腐蚀技术涂层材料质量差、预测腐蚀速率精度低等问题,提出了一种外加电流阴极保护(Impressed Current Cathodic Protection,ICCP)系统结构。通过阴极保护(Cathodic Protection,CP)仪表监测管道表面电位,选用超疏水涂层作为管道的缓蚀剂。研究基于CenterNet构建深度学习预测模型,通过将正常电位和腐蚀电位视为袋子并将管道表面电位视为袋子中的样本,利用分类中性能指标特征曲线下面积(Area Under Curve,AUC)来预测管道腐蚀情况。结果表明:该预测模型精准度更高,在预测2021年管道的腐蚀速率误差为0%。
