Polycarbonate microfilters by nuclear tracking and chemical etching (track‐etching) technique: Preparation and characterization
Identifieur interne : 005412 ( Main/Exploration ); précédent : 005411; suivant : 005413Polycarbonate microfilters by nuclear tracking and chemical etching (track‐etching) technique: Preparation and characterization
Auteurs : Pornphan Makphon [Thaïlande] ; Wichian Ratanatongchai [Thaïlande] ; Somporn Chongkum [Thaïlande] ; Supawan Tantayanon [Thaïlande] ; Pitt Supaphol [Thaïlande]Source :
- Journal of Applied Polymer Science [ 0021-8995 ] ; 2006-07-15.
English descriptors
- Teeft :
- Absorbance, Appl polym, Average number, Average pore density, Average pore diameter, Beam tunnel, Chemical etching, Chemical etching step, Chemical etching steps, Chemical structure, Chulalongkorn university, Etchant, Etchant concentration, Etching, Etching condition, Etching conditions, Etching solution, Etching temperature, Etching time, Etching times, Exposure time, Ftir, Ftir spectra, Further increase, Leachable component, Mechanical integrity, Naoh, Neutron, Nucl instrum methods phys, Nuclear reaction, Nuclear reactor, Permeability, Polym, Polymer, Pore, Pore density, Present contribution, Reactor core, Sodium hydroxide, Ssion, Ssion fragments, Tensile strength, Thermal neutrons, Track density, Unit area, Vysokomol soedin, Water permeability, Wave numbers.
Abstract
Track‐etched polycarbonate (PC) microfilters were successfully prepared by tracking with fission fragments in the Thai Research Reactor‐1/Modification‐1 nuclear reactor and chemical etching with sodium hydroxide aqueous solutions. The porosity of the as‐prepared microfilters can be controlled by varying the exposure time in the nuclear reactor and the average pore diameter by varying the etching conditions. In the present work, the average pore diameter of the as‐prepared microfilters ranged from ∼2.0 to 9.5 μm (workable values) and the highest pore density achieved was ∼150,000 pores cm−2. It was found that chemical etching also caused a reduction in the film thickness. Fourier‐transform infrared spectroscopy results suggested some modifications in the chemical structure of the PC molecules after both nuclear tracking and chemical etching steps. Lastly, water permeability of the as‐prepared, track‐etched PC microfilters was found to increase with increasing average pore diameter. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 982–990, 2006
Url:
DOI: 10.1002/app.22558
Affiliations:
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solution</term><term>Etching temperature</term><term>Etching time</term><term>Etching times</term><term>Exposure time</term><term>Ftir</term><term>Ftir spectra</term><term>Further increase</term><term>Leachable component</term><term>Mechanical integrity</term><term>Naoh</term><term>Neutron</term><term>Nucl instrum methods phys</term><term>Nuclear reaction</term><term>Nuclear reactor</term><term>Permeability</term><term>Polym</term><term>Polymer</term><term>Pore</term><term>Pore density</term><term>Present contribution</term><term>Reactor core</term><term>Sodium hydroxide</term><term>Ssion</term><term>Ssion fragments</term><term>Tensile strength</term><term>Thermal neutrons</term><term>Track density</term><term>Unit area</term><term>Vysokomol soedin</term><term>Water permeability</term><term>Wave numbers</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Track‐etched polycarbonate (PC) microfilters were successfully prepared by tracking with fission fragments in the Thai Research Reactor‐1/Modification‐1 nuclear reactor and chemical etching with sodium hydroxide aqueous solutions. The porosity of the as‐prepared microfilters can be controlled by varying the exposure time in the nuclear reactor and the average pore diameter by varying the etching conditions. In the present work, the average pore diameter of the as‐prepared microfilters ranged from ∼2.0 to 9.5 μm (workable values) and the highest pore density achieved was ∼150,000 pores cm−2. It was found that chemical etching also caused a reduction in the film thickness. Fourier‐transform infrared spectroscopy results suggested some modifications in the chemical structure of the PC molecules after both nuclear tracking and chemical etching steps. Lastly, water permeability of the as‐prepared, track‐etched PC microfilters was found to increase with increasing average pore diameter. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 982–990, 2006</div></front></TEI><affiliations><list><country><li>Thaïlande</li></country></list><tree><country name="Thaïlande"><noRegion><name sortKey="Makphon, Pornphan" sort="Makphon, Pornphan" uniqKey="Makphon P" first="Pornphan" last="Makphon">Pornphan Makphon</name></noRegion><name sortKey="Chongkum, Somporn" sort="Chongkum, Somporn" uniqKey="Chongkum S" first="Somporn" last="Chongkum">Somporn Chongkum</name><name sortKey="Ratanatongchai, Wichian" sort="Ratanatongchai, Wichian" uniqKey="Ratanatongchai W" first="Wichian" last="Ratanatongchai">Wichian Ratanatongchai</name><name sortKey="Supaphol, Pitt" sort="Supaphol, Pitt" uniqKey="Supaphol P" first="Pitt" last="Supaphol">Pitt Supaphol</name><name sortKey="Supaphol, Pitt" sort="Supaphol, Pitt" uniqKey="Supaphol P" first="Pitt" last="Supaphol">Pitt Supaphol</name><name sortKey="Supaphol, Pitt" sort="Supaphol, Pitt" uniqKey="Supaphol P" first="Pitt" last="Supaphol">Pitt Supaphol</name><name sortKey="Tantayanon, Supawan" sort="Tantayanon, Supawan" uniqKey="Tantayanon S" first="Supawan" last="Tantayanon">Supawan Tantayanon</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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