【作者】 王宇；

【导师】 游革新；

【作者基本信息】 华南理工大学 ， 安全技术及工程， 2011， 硕士

【摘要】 冠形盖主要用于玻璃瓶装的酒业和饮料业,我国酒业和饮料业发展潜力很大,从而带动冠形盖的大量需求。冠形盖在储存过程若不做好防锈处理,则会发生锈蚀,从而影响玻璃瓶内液体的质量,进而危害人们的饮用安全。瓶盖的防锈处理包括两部分,一是瓶盖内外表面的防锈处理,二是瓶盖切边的防锈处理。研究前者的文献很多,使用的防锈技术比较成熟;而对后者的研究很少,且国内少有瓶盖生产厂家对此做防锈处理。因此探索一种适用于冠形盖切边的防锈油是一项重要而紧迫的任务。本文针对冠形盖切边的防锈,通过分析防锈油膜各组成成分、制备工艺对防锈油的防锈性能的影响规律,最终确定冠形盖切边防锈油膜的最佳配方以及最佳工艺条件,并通过红外光谱测试技术(FTIR)、X光电子能谱(XPS)和表面接触角技术对冠形盖切边防锈油膜结构进行表征;通过电化学阻抗谱技术(EIS)研究冠形盖切边防锈油膜的防锈性能。研究表明:主要因素对防锈效果的影响程度由大到小依次为:二甲基硅油的剂量、辅助添加剂Span20的剂量、固化时间、固化温度,当黏度为20mPa·s二甲基硅油占20%,辅助添加剂Span20占2%,油酸钾占1%,无水乙醇占10%,无味煤油占67%;固化时间为30min,固化温度为60℃时,防锈油膜的防锈效果最佳。样品表面涂布防锈油膜后,在试样表面形成了一层保护膜,保护膜的主要成分是聚二甲基硅氧烷。样品涂布防锈油膜后,蒸馏水表面水接触角和二碘甲烷表面接触角均增加,说明样品表面的疏水性增加,从而一定程度上阻隔了水与样品表面接触,降低了腐蚀速率,从实验上和理论上表明该防锈油膜具有很好的防锈性能。交流阻抗图谱中涂布防锈油膜样品的总阻抗值比起未涂防锈油膜样品的高一个数量级以上;通过对两种样品的交流阻抗图根据等效电路Rs(QRt)和Rs(QcRpo)(QdlRt)用软件ZSimWin进行拟合分析研究,两种等效电路与实际情况接近,同时涂布防锈油膜样品拟合结果的反应电阻比未涂防锈油膜样品拟合结果的高一个数量级以上,进一步说明涂布了防锈油膜的样品有较好的防锈能力。更多还原

【Abstract】 Crown is mainly used for glass bottles of liquor and beverage industry, wine and beverage industry in China has great potential to drive large demand for crown. Crown rust in storage if not handled well, crown will rust, thus affecting the quality of the liquid in glass bottles to endanger the safety of people drinking. Crown of anti-rust treatment consists of two parts, the one is crown of anti-rust treatment inside and outside the surface, and the second is anti-rust treatment for crown lid side cut. The former has a lot of research literature, and the use of anti-rust technology is relatively mature; There is little research on the latter, and there is little manufacturers of domestic to do this anti-rust treatment. So exploring rust preventive oils for crown lid side cut is an important and urgent task.In this paper, the best recipe and best process conditions of rust preventive oils film for crown lid side cut were ultimately determined by analyzing the composition and preparation process of the rust inhibition properties of the anti-rust oil film. And by infrared spectroscopy (FTIR), X ray photoelectron spectroscopy (XPS) and surface contact angle, the structures of rust preventive oils film for crown lid side cut were characterized. At the same time, the antirust properties of rust preventive oils film for crown lid side cut were discussed by electrochemical impedance spectroscopy (EIS).The results show that influence of major factors in decreasing order is : dose of dimethyl silicone oil, dose of auxiliaries Span20, curing time, curing temperature. Anti-rust oil film obtained 20mPa ? s viscosity dimethyl silicone oil at 20%, auxiliaries Span20 at 2%, potassium oleate at 1%, absolute alcohol at 10%, Jetfuel at 67%, curing time reaching 30min and curing temperature reaching 60℃has the best anti rust effect. And after coating a layer in the surface of the sample to polydimethylsiloxane as the main component of the protective film is formed. The distilled water contact angle and the diiodomethane contact angle of anti-rust oil coating samples are increased, indicating that increased hydrophobic surface of the sample blocked the water and the sample surface contact and reduced the corrosion rate to a certain extent, it shows that the anti-rust oil film has very good antirust properties from the experiment and theory. The total impedance of coated anti-rust oil film samples compared to not coated with rust preventive oil film samples in EIS is more than one order of magnitude. The EIS of the two samples were simulated with equivalent circuit of AC impedance Rs (QRt) and Rs(QcRpo)(QdlRt) by software ZSimWin, the results showed two equivalent circuits was close to the actual situation, while reaction resistance of anti-rust oil coating of sample compared with not coated with rust preventive oil film samples is more than one order of magnitude, further indicating that the anti-rust oil coating of the sample. has good antirust properties.更多还原