植物废料提取液作为盐酸酸洗缓蚀剂的研究

用水蒸气-蒸馏法从樟树叶中提取桉叶油；并将其作为盐酸酸洗缓蚀剂的主要成分，用正交实验法优选了复合缓蚀剂配方；采用线性极化法评价缓蚀剂的缓蚀效率，并对其缓蚀机理进行了初步探讨.结果表明，复配缓蚀剂对碳钢在5%的盐酸溶液中有良好的缓蚀效果，属于混合控制型缓蚀剂.      

低合金钢在添加缓蚀剂的NaCl溶液中的腐蚀行为

研究分别添加少量(1%)缓蚀剂乌洛托品、磷酸钠、硫脲时在3.5%NaCl溶液中对低合金钢的缓蚀作用。运用线性极化技术测定比较上述三种缓蚀剂的缓蚀效果,且用交流阻抗法测得的结果与线性极化的一致。通过Tafel曲线对缓蚀剂的缓蚀机理进行了初步探讨。研究结果表明缓蚀效果:磷酸钠>硫脲>乌洛托品。缓蚀剂的作用是在金属表面成膜,改变了金属表面状态,从而抑制金属的腐蚀。     

米糠提取液作为盐酸酸洗缓蚀剂的研究

用盐酸酸化浸取法从米糠中提取植酸,并将其作为盐酸酸洗缓蚀剂的主要成分;采用失重挂片、线性极化和电化学阻抗等方法评价该缓蚀剂的缓蚀效率,并初步探讨其缓蚀机理。结果表明：该缓蚀剂对碳钢在1 mol/L HCl 溶液中有良好的缓蚀效果,且缓蚀效率受温度影响较小,属于阴极型缓蚀剂。     

除盐水中A106碳钢缓蚀剂的电化学试验比选

采用失重法和极化曲线法,试验对比了除盐水中几种缓蚀剂对A106碳钢的缓蚀作用,结果显示除盐水中在30~85℃间缓蚀剂A的缓蚀效果最好,缓蚀率在95%以上;在试验温度范围内,缓蚀剂A能够稳定地发挥缓蚀作用。     

EC缓蚀剂对钢铁的缓蚀行为研究

用失重法、极化曲线法研究了EC缓蚀剂在H_2S和NaCl溶液中对20碳钢的缓蚀行为,分析了分子结构对缓蚀作用的影响及其在钢铁表面的吸附。结果表明,EC缓蚀剂具有良好的缓蚀效果。     

EC缓蚀剂对钢铁的腐蚀行为研究

用失重法、极化曲线法研究了ＥＣ缓蚀剂在Ｈ２Ｓ和ＮａＣｌ溶液中对２０碳钢的缓蚀行为,分析了分子结构对缓蚀作用的影响及其在钢铁表面的吸附。结果表明,ＥＣ缓蚀剂具有良好的缓蚀效果。     

植物型缓蚀剂的研制及应用

用直接浸泡--回流法从绿茶茶叶和米糠中提取了两种缓蚀剂TL和BR。利用失重法研究了缓蚀剂TL和BR浓度、介质酸度和腐蚀时间对碳钢的缓蚀作用的影响，以及TL、BR分别与六次甲基四胺(CN)复配后的缓蚀效果，并探讨了TL、BR的缓蚀机理。失重试验和极化曲线测试结果表明：缓蚀剂TL和BR对碳钢具有良好的缓蚀作用，属于阴极型缓蚀剂。     

柠檬酸介质中咪唑啉复配缓蚀剂对碳钢的缓蚀作用

采用失重法、极化曲线法研究了咪唑啉与KI的复配缓蚀剂在4%(质量浓度,下同)柠檬酸溶液中对碳钢的缓蚀协同作用。结果表明,复配缓蚀剂可有效抑制45#碳钢在柠檬酸溶液中的腐蚀,当缓蚀剂总浓度为0.4%时,咪唑啉和KI浓度比为3:1时缓蚀效果最好。极化曲线表明该复配缓蚀剂为混合型缓蚀剂。     

缓蚀剂GL2的制备及应用

对造纸废液中提取的磺化木质素进行改性，探索其作为缓蚀剂的可行性。研制了缓蚀剂GL2。采用失重法对GL2在1．04mol／L硫酸溶液中的缓蚀效果进行测定，并与六偏磷酸钠进行了比较。实验结果表明，GL2对抑制1．04mol／L硫酸溶液中氏钢的腐蚀有较好的效果。当缓蚀剂用量为40mg／L时，GL2对A3钢的缓蚀率为87．6％，缓蚀效果优于六偏磷酸钠。     

钨酸钠与十二烷基苯磺酸钠协同缓蚀作用研究

为了研究钨酸钠和十二烷基苯磺酸钠的协同缓蚀作用,采用浸泡法、失重法和极化曲线法研究环境友好型缓蚀剂钨酸钠和十二烷基苯磺酸钠复配而成的复合缓蚀剂对铸铁在3.5%NaCl溶液中的缓蚀效果.研究发现,该复合缓蚀剂具有很好的协同缓蚀作用且当缓蚀剂总的质量分数为0.3%,两种缓蚀剂的质量比为2:1时其缓蚀效果最好.     

磺酸甲胺基聚环氧琥珀酸的合成及缓蚀性能

以马来酸酐为原料,钨酸钠为催化剂,双氧水为氧化剂,合成了环氧琥珀酸钠。在引发剂存在下,以环氧琥珀酸钠和氨基甲磺酸为原料,合成了磺酸甲胺基聚环氧琥珀酸(SMA/PESA),并对其进行了红外表征。利用旋转挂片腐蚀试验法对其缓蚀性能进行了评价,实验结果表明:SMA/PESA是一种吸附膜型缓蚀剂,结构中含有羧基、醚基、胺基、羟基、磺酸基等多种亲水性基团,它不仅可有效地提高化合物溶解性,还可在金属表面形成配位化合物而发生化学吸附,从而对其缓蚀性能起到增强作用,多种官能团的协同效应使其缓蚀性能大幅提高。SMA/PESA对循环冷却水中A3碳钢的腐蚀具有良好的抑制作用,当投加量为100mg/L时,缓蚀率达85.9%。     

缓蚀阻垢剂的筛选及工业应用

针对现场循环冷却水的水质情况，研究了一种适用于循环冷却水的缓蚀阻垢剂配方，通过正交试验筛选出了一组最佳的浓度，使用该配方的缓蚀率达到82．56％。经静态阻垢试验和缓蚀评定试验分析，结果表明该配方有良好的缓蚀阻垢性能。当药剂配方浓度达50mg／L时，其缓蚀率和阻垢率均达到90％以上。在现场循环冷却水系统的应用中，对改善循环水水质也有很好的效果。     

表面分析技术在钨酸盐缓蚀机理研究中的应用

钨酸盐单独使用及与其它组分复配使用时均有缓蚀作用。本文简要介绍了钨酸盐作为缓蚀剂的主要应用领域。综述了表面分析技术（包括椭圆偏振法,Ａｕｇｅｒ能谱、ＸＰＳ及卢瑟夫背散射能谱）在钨盐缓蚀作用机理研究中的应用,并对分析结果及存在的问题进行了讨论。     

吡啶嗡离子衍生物的缓蚀作用及其吸附模型

用线性极化曲线法研究了N 癸基吡啶溴化铵 (DP) /N 癸基 3 羟基吡啶溴化铵 (D3OP)和N 癸基 3 羧基吡啶溴化铵 (D3CP)在 5 %氨基磺酸中对铁的缓蚀作用及其吸附模型。结果表明 :它们对 5 %氨基磺酸中的铁具有良好的缓蚀作用 ,在吡啶环上引入合适的取代基能提高吡啶嗡离子的缓蚀效果。它们在铁表面的吸附主要为物理吸附 ,其吸附遵循Langmuir吸附等温式 ;随着温度和使用浓度的提高 ,其缓蚀性能加强 ;三种缓蚀剂缓蚀能力大小为D3CP >D3OP >DP。     

一种含氮有机化合物的缓蚀性能及电化学特征

N,N-双(2-羟基-3-磺酸基丙基)氨基乙酸(BHSPA)是一种低氮、无磷的自制水处理剂。利用腐蚀失重和电化学方法研究了它的缓蚀性能、电化学特征,并初步探讨了其缓蚀机理。结果表明,温度、浓度、pH对BHSPA缓蚀性能均产生一定的影响。BHSPA主要通过与阳离子的化学吸附形成保护膜,是一种阳离子型的缓蚀剂。     

The effect of neutral red on the corrosion inhibition of cold rolled steel in 1.0 M hydrochloric acid

The corrosion inhibition of neutral red on the corrosion of cold rolled steel in 1.0 M hydrochloric acid (HCl) was studied using weight loss method and potentiodynamic polarization method. Results obtained revealed that neutral red is an effective inhibitor. It was found that the adsorption of neutral red could prevent steel from weight loss and the adsorption accorded with the Langmuir adsorption isotherm. Potentiodynamic polarization studies showed that neutral red mainly acted as a mixed-type inhibitor for steel in 1.0 M hydrochloric acid. Thermodynamic parameters such as adsorption heat, adsorption entropy and adsorption free energy were obtained from experimental data of the temperature studies of the inhibition process at four temperatures ranging from 30 to 45 °C. The most suitable range of inhibitor concentration was discussed. The kinetic data such as apparent activation energies and pre-exponential factors at different concentrations of the inhibitor were calculated, the effect of the apparent activation energies and pre-exponential factors on the corrosion rates of cold rolled steel was discussed. The inhibitive action was satisfactorily explained by using both thermodynamic and kinetic models. Synergism between chloride ion and neutral red was proposed. The results obtained from weight loss and potentiodynamic polarization were in good agreement.     

Corrosion inhibition of zinc in phosphoric acid solution by 2-mercaptobenzimidazole

The inhibiting action of 2-mercaptobenzimidazole on the corrosion of zinc in phosphoric acid (H₃PO₄) solution has been investigated by weight loss and polarization. The studies reveal that the inhibitor is effective for the inhibition of zinc in H₃PO₄ solution and retards the anodic and cathodic corrosion reactions with emphasis on the former.     

Evaluation of 2-mercaptobenzimidazole as corrosion inhibitor for mild steel in phosphoric acid

The inhibiting action of 2-mercaptobenzimidazole on the corrosion of mild steel in phosphoric acid (H₃PO₄) solution has been investigated by weight loss and polarization. The studies reveal that the inhibitor is effective for the inhibition of mild steel over a wide concentration range of H₃PO₄ solutions and retards the anodic and cathodic corrosion reactions with emphasis on the former.     

新型咪唑啉衍生物油田注水缓蚀剂的研究

使用长链脂肪酸、多胺、甲醛和三氯化磷等为原料合成了咪唑啉有机膦酸类缓蚀剂。在模拟油田注水条件下，采用静态挂片、极化曲线和交流阻抗等测试方法评价了缓蚀剂的缓蚀性能，并对缓蚀剂的成膜机理进行了一些研究与探讨。     

Characterising localised corrosion inhibition by means of parameters measured by an electrochemically integrated multielectrode array

Electrochemical parameters including maximum anodic current density, total anodic current density, the number of anodic sites and the localised corrosion intensity index have been extracted from galvanic current distribution maps that were acquired using an electrochemically integrated multielectrode array, namely, the wire beam electrode. Experiments have been carried out to demonstrate the application of these new electrochemical parameters for characterising localised corrosion inhibition of metals. A typical corrosion inhibitor, potassium dichromate, was found to affect localised corrosion processes in various ways, for instance in sodium chloride solutions, it was found to inhibit localised corrosion of aluminium alloy AA 2024-T3 by suppressing galvanic corrosion activities occurring over the alloy surface, whereas it was found to control localised corrosion of AA 1100 by creating a large number of minor anodes distributing randomly over the metal surface.