The effects of organoclay on the morphology and mechanical properties of PAI/clay nanocomposites coatings prepared by the ultrasonication assisted process |
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| Institution: | 1. Chemistry Department, Stony Brook University, Stony Brook, NY 11794-3400, USA;2. ExxonMobil Chemical Company, Baytown, TX 77522-5200, USA;1. Department of Mechanical Engineering, Biomechanics Section, KU Leuven, Leuven, Belgium;2. Departments of Mechanical Engineering, Biomedical Engineering and Mathematics, University of Connecticut, Storrs, USA;3. Bioengineering and Telemedicine Center, Networking Research on Bioengineering, Biomaterials and Nanomedicine, Polytechnic University of Madrid, Madrid, Spain;1. Department of Theoretical and Applied Mechanics, Dniepropetrovsk National University, Gagarin Av., 72, Dniepropetrovsk 49010, Ukraine;2. French Institute of Advanced Mechanics, Institut Pascal, UMR 6602/UBP/CNRS/IFMA, Clermont Université, BP 265, 63175 Aubière Cedex, France;1. Department of Civil Engineering, The University of Hong Kong, Hong Kong, China;2. Department of Engineering Mechanics, Shijiazhuang Tiedao University, Shijiazhuang 050043, PR China |
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| Abstract: | In this research, solvent based polyamide – imide (PAI)/clay nanocomposites were prepared successfully using the solution dispersion technique. With the assistance of the ultrasonic wave, the effect of the ultrasonic wave time on the microstructure of 3 wt% PAI/C20A nanocomposite (NC) was investigated. Then, the best ultrasonic parameters were selected and the effects of the concentration of Cloisite 20A (C20A) (1, 3 and 5 wt% C20A) on the microstructure and mechanical properties (adhesion, hardness, flexibility, wear and impact) of NCs were investigated. The PAI, C20A and nanocomposites (NC)s were characterized by Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray analysis (EDX), and Wide-angle X-ray diffraction (WAXD). The results showed that the sample with 1 and 3 wt% C20A had better mechanical properties, as compared to the pure PAI and the 5 wt% NC. |
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| Keywords: | Polyamide-imide Cloisite 20A Nanocomposites Sonication Adhesion Hardness Flexibility Wear Impact resistance |
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