Published October 2005
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Chemical Etching of Latent Tracks Formed by Bombardment with Nuclear Fragments for the Development of Track-Etched Polystyrene Membranes
- 1. Department of Physics, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok (Thailand)
- 2. Physics Division, Office of Atomic Energy for Peace, Bangkok (Thailand)
- 3. The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok (Thailand)
Description
Latent tracks were first formed in 25 mm-thick polystyrene films by bombarding the films with fission fragments generated by a reaction between thermal neutrons and Uranium-235 in the Thai nuclear reactor for 4 hr. To enlarge the latent tracks to form flow-through pores, they were further etched in a mixture between 40% sulphuric acid (H2SO4) and potassium dichromate (K2Cr2O7) at 80oC for 16 hr. It was found that the best etching formulation among those investigated that could enlarge the latent tracks very efficiently was 35 g of K2Cr2O7 in 100 cm3 of 40% H2SO4. The average diameter and the density of the pores so formed were 11.6 ± 0.9 mm and 1.6 ± 0.3 x 105 pores-cm-2
Availability note (English)
Available from INIS in electronic form; Also available from The Science Society of Thailand under the Patronage of His Majesty the King, Bangkok (TH)Files
37055025.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 3 p.
- Report number
- INIS-TH--111
Conference
- Title
- 31. Congress on Science and Technology of Thailand
- Dates
- 18-20 Oct 2005
- Place
- Nakhon Ratchasima (Thailand)
INIS
- Country of Publication
- Thailand
- Country of Input or Organization
- Thailand
- INIS RN
- 37055025
- Subject category
- S60: APPLIED LIFE SCIENCES;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- ETCHING; EXPERIMENTAL DATA; LATENT IMAGES; PHOTOGRAPHIC FILMS; POLYSTYRENE; SURFACE FINISHING
- Descriptors DEC
- DATA; INFORMATION; MATERIALS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLYMERS; POLYOLEFINS; POLYVINYLS; SURFACE FINISHING; SYNTHETIC MATERIALS