This research studies the effects of microstructures of poly(vinylidene fluoride) (PVDF) on its adhesion force with the probe of an atomic force microscope (AFM). The adhesion problem is currently a bottle neck for the development of micro-electro-mechanical systems (MEMS). Understanding the surface adhesion mechanisms is an important step to advance MEMS technology. In the present work, we fabricated PVDF thinfilms using spin casting and in situ corona poling methods. The microstructure was thus changed from α to the mixture of β and γ phases. Surface forces were then evaluated using an AFM. It was found that the adhesion forces between the AFM probe and the polymer surfaces were affected by microstructures. This paper discusses details of molecular structures. We propose a surface molecular structural model in order to achieve the level of adhesion forces desired.
- Tribology Division
Effects of Microstructures of PVDF on Surface Adhesive Forces
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Jee, T, Lee, H, Mika, B, Mani, S, & Liang, H. "Effects of Microstructures of PVDF on Surface Adhesive Forces." Proceedings of the STLE/ASME 2006 International Joint Tribology Conference. Part B: Magnetic Storage Tribology; Manufacturing/Metalworking Tribology; Nanotribology; Engineered Surfaces; Biotribology; Emerging Technologies; Special Symposia on Contact Mechanics; Special Symposium on Nanotribology. San Antonio, Texas, USA. October 23–25, 2006. pp. 1015-1020. ASME. https://doi.org/10.1115/IJTC2006-12154
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