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芦苇叶(phragmites australis)表面有很好的超疏水性,水滴在其表面的静态接触角为152.7°,滚动角为10°,在芦苇叶表面,分布有大量规则排列的二元纳米复合薄片结构。采用索氏提取法从芦苇叶中提取了植物型缓蚀剂,通过静态失重法、极化曲线法和交流阻抗法研究了缓蚀剂在0.01mol/L HCl溶液中对碳钢的缓蚀性能。结果表明,芦苇叶提取物(简称PALE)对碳钢具有较好的缓蚀性能,当缓蚀剂浓度为1g/L、温度为30℃,缓蚀率高达87%,且此缓蚀剂为混合型缓蚀剂,EIS谱图显示缓蚀剂浓度越大,电荷转移阻抗半径越大。
The surface of phragmites australis has good superhydrophobicity. The static contact angle of water droplets on its surface is 152.7 ° and the rolling angle is 10 °. A large number of regularly arranged binary nanocomposite flake structures are distributed on the surface of reed leaves . The plant inhibitor was extracted from the leaves of Phragmites australis by Soxhlet extraction method. The corrosion inhibition of carbon steel in 0.01 mol / L HCl solution was studied by static weight loss method, polarization curve method and AC impedance method . The results showed that reed leaf extract (PALE) had good corrosion inhibition to carbon steel. When the inhibitor concentration was 1g / L, the temperature was 30 ℃, the corrosion inhibition rate was as high as 87%, and the inhibitor was Mixed corrosion inhibitors, EIS spectra showed that the greater the concentration of corrosion inhibitor, the larger the charge transfer impedance radius.