Amorphous microcellular polytetrafluoroethylene foam film

Chongzheng Tang

doi:10.1117/12.47260

1 November 1991 Amorphous microcellular polytetrafluoroethylene foam film

Chongzheng Tang

Proceedings Volume 1519, International Conference on Thin Film Physics and Applications; (1991) https://doi.org/10.1117/12.47260
Event: International Conference on Thin Film Physics and Applications, 1991, Shanghai, China

Abstract

We report herein the preparation of novel low-density ultramicrocellular fluorocarbon foams and their application. These fluorocarbon foams are of interest for the biochemistry arena in numerous applications including foodstuff, pharmacy, wine making, beer brewery, fermentation medical laboratory, and other processing factories. All of those require good quality processing programs in which, after eliminating bacterium and virus, compressed air is needed. Ordinarily, compressed air contains bacterium and virus, its size is 0.01 - 2 micrometers fluorocarbon foam films. Having average porous diameter 0.04 - 0.1 micrometers , these are stable to high temperature (280 degree(s)C) and chemical environments, and generally have good engineering and mechanical properties (e.g., low coefficient of thermal expansion, high modulus, and good dimensional stability). Our new process for preparing low density fluorocarbon foams provides materials with unique properties. As such, they offer the possibility for being superior to earlier materials for a number of the filter applications mentioned.

Citation Download Citation

Chongzheng Tang "Amorphous microcellular polytetrafluoroethylene foam film", Proc. SPIE 1519, International Conference on Thin Film Physics and Applications, (1 November 1991); https://doi.org/10.1117/12.47260

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