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首页> 外文会议>Pits and pores 4: New materials and applications - in memory of ulrich gosele >Corrosion Inhibition of 304 Stainless Steel, Copper and Nickel Metals Using Mesoporous Silicate (MCM- 41) and 2, 5-Distyrylpyrazine Photopolymer
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Corrosion Inhibition of 304 Stainless Steel, Copper and Nickel Metals Using Mesoporous Silicate (MCM- 41) and 2, 5-Distyrylpyrazine Photopolymer

机译：使用介孔硅酸盐（MCM-41）和2，5-二苯乙烯基吡嗪光敏聚合物对304不锈钢，铜和镍金属的缓蚀性能

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摘要

Mesoporous silicate (MCM-41) and 2, 5-distyrylpyrazine photo-polymer (poly-DSP) were used as corrosion protective coatings for 304 stainless steel, copper and nickel metals. Films on metal surfaces were prepared by dip-coating and vapor deposition (CVD, PVD) methods. Poly-DSP thin films formed by vapor deposition are expected to be incorporated through pores and micro-cracks of SiO_2 thin film resulting in extra corrosion protection upon photo polymerization. MCM-41 thin films were characterized by x-ray diffraction (XRD), infrared (IR), BET and electron microscopy (SEM, TEM) techniques. Corrosion protection was studied in 2M HC1 aqueous solutions using weight loss and potentiodynamic polarization techniques. The temperature effect on corrosion rates was also studied and the thermodynamic activation parameters of the corrosion reaction were determined. Different corrosion parameters were evaluated including, corrosion current density, corrosion potential, corrosion rate and Tafel constants. The calculated percentage of inhibition efficiencies of the coated electrodes reaches ca 93% in some cases.
机译：介孔硅酸盐（MCM-41）和2，5-二苯乙烯基吡嗪光敏聚合物（poly-DSP）被用作304不锈钢，铜和镍金属的防腐涂层。金属表面上的膜通过浸涂和气相沉积（CVD，PVD）方法制备。预计通过气相沉积形成的Poly-DSP薄膜会通过SiO_2薄膜的孔和微裂纹引入，从而在光聚合时产生额外的腐蚀保护。 MCM-41薄膜通过X射线衍射（XRD），红外（IR），BET和电子显微镜（SEM，TEM）技术进行了表征。使用失重和电位动力学极化技术研究了在2M HCl水溶液中的腐蚀防护。还研究了温度对腐蚀速率的影响，并确定了腐蚀反应的热力学活化参数。评价了不同的腐蚀参数，包括腐蚀电流密度，腐蚀电位，腐蚀速率和Tafel常数。在某些情况下，涂层电极的抑制效率的计算百分比达到约93％。

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