Li Ying-Sing, Xiao Yun, Wright Paul B, Tran Tuan
Department of Chemistry, University of Memphis, Memphis, TN 38152-6060, USA.
Spectrochim Acta A Mol Biomol Spectrosc. 2005 May;61(7):1675-81. doi: 10.1016/j.saa.2004.12.027.
3-(Triethoxysilyl)propionitrile (TESPN) sol-gel has been prepared under different conditions. It was employed for coating the surfaces of quartz and aluminum. Infrared (IR) and Raman spectra of TESPN and TESPN sol-gels have been recorded in the study of the sol-gel process. Transmission and reflection absorption IR (RAIR) spectra of TESPN sol-gel coated quartz and aluminum have also been collected for better understanding the film formation on the substrate surfaces. Spectra collected at different temperatures indicated that the silane film on quartz decomposes at 700 degrees C. Results from thermal gravimetric analysis (TGA) supported this result. Based on the group frequencies and the spectral behavior in different states, some vibrational modes were assigned to the observed bands. The anticorrosion behavior of the sol-gel coated aluminum in comparison with the uncoated metal was evaluated by measuring the potentiodynamic polarization and electrochemical impedance spectra (EIS).
3-(三乙氧基硅基)丙腈（TESPN）溶胶-凝胶已在不同条件下制备。它被用于涂覆石英和铝的表面。在溶胶-凝胶过程的研究中记录了TESPN和TESPN溶胶-凝胶的红外（IR）和拉曼光谱。还收集了TESPN溶胶-凝胶涂覆的石英和铝的透射和反射吸收红外（RAIR）光谱，以更好地了解在基底表面上的成膜情况。在不同温度下收集的光谱表明，石英上的硅烷膜在700℃时分解。热重分析（TGA）结果支持了这一结果。基于基团频率和不同状态下的光谱行为，为观察到的谱带指定了一些振动模式。通过测量动电位极化和电化学阻抗谱（EIS），评估了溶胶-凝胶涂覆的铝与未涂覆金属相比的防腐性能。
