Surface analysis of electrophoretic deposition graphene oxide using Taguchi method

• Main Authors: Han-Wei Chiang, 江翰威
• Other Authors: Ching-Yuan Ho
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/8vwf49

碩士 === 中原大學 === 機械工程研究所 === 106 === In this study, Taguchi Methods were used to synthesize powdered graphene oxide by Hummers method. The graphene oxide was deposited on indium tin oxide (ITO) substrate by electrophoretic deposition, and the surface morphology was observed and found electrophoretic deposition of the best conditions. In Taguchi''s L9(34) orthogonal arrays parameters, graphene oxide was electrophoretically deposited by changing parameters such as voltage and anode distance, temperature and weight percent concentration. Graphene oxide deposited heart-shaped pleated appearance differences can be observed by scanning electron microscope , and also observed the phenomenon of graphite stacking characteristics; Energy dispersion spectrometer instrument results show that carbon and oxygen elements in graphene oxide are majority, and the ratio close to 1: 1, means that the oxidation effect is good. In addition, the experimental results show that in the contact angle measurement, the maximum control factor of the S/N ratio reaction factor is the temperature. Secondary is concentration .Under the conditions of the parameters of the voltage of 7V, cathode anode distance 14 mm, temperature 55℃and concentration 1.5% , a minimum angle of 28 degrees was obtained. Atomic force microscope measurement results showed that the root mean square roughness Rq was 30.1nm and the center line average roughness Ra was 19.6nm under conditions of voltage of 7V, adistance of 14mm of cathode and anode, temperature of 55℃and concentration of 1.5% . The roughness is relatively smooth. S/N ratio of the maximum reaction factor control factor and contact angle measurement results are the same temperature is the maximum control factor. In this experiment, through the contact angle measurement and atomic force microscope results, the temperature can be obtained as the maximum control factor through the S/N ratio calculation, and the optimal parameters were found to be 5V, cathode anode distance 18mm, temperature 40℃, concentration 1% . By the surface structure and nature of the experimental analysis, to enhance the future of postgraduate medical technology, corrosion resistance, electrode efficiency, polymer composite materials, paint use.