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DTIC ADA554609: The Design of Non-Wetting Surfaces with FluoroPOSS |
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by Defense Technical Information Center |
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Functional non-wetting materials are of interest for a |
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diverse array of applications. It has long been |
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understood that factors contributing to the wettability |
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of a surface include surface free energy and surface |
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roughness. More recently, surface texture has been found |
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to be of equal or greater importance, especially if the |
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desire is for the surface to repel low surface tension |
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liquids, such as short-chain hydrocarbons and alcohols. |
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This chapter will describe recent work in the design and |
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production of wetting-resistant surfaces utilizing |
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fluorinated Polyhedral Oligomeric SilSesquioxanes |
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(FluoroPOSS), as well as the development of dimensionless |
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design parameters to aid in the preparation of such |
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surfaces. FluoroPOSS compounds are organic/inorganic |
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hybrid materials that exhibit low surface energy |
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attributes, as well as an octahedral structure, which |
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results in useful migration and aggregation |
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characteristics when blended into polymer matrices. |
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Wetting-resistant surfaces containing FluoroPOSS are |
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produced either by techniques that specifically |
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incorporate all three critical parameters for wetting- |
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resistance, or by the modification of substrates already |
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possessing the desired surface texture. |
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Date Published: 2018-08-30 11:03:23 |
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Identifier: DTIC_ADA554609 |
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Item Size: 12606420 |
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Language: english |
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Media Type: texts |
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