Poly(methyl methacrylate) as incorporation medium for spent ion-exchange resin. II. Simulated resin
The incorporation and final containment of spent ion-exchange resins into poly(methyl methacrylate) (PMMA) was investigated in the present study. Test blocks of PMMA with 50% incorporated inactive resin were subjected to radiation doses of 10/sup 5/-10/sup 7/ rad at a dose rate of 50 rad/s. The high radiation doses impaired the mechanical properties of the final products. Both compressive strength and hardness decreased with increasing the particle size of the ion-exchange resin. DTA diagrams showed the thermal instability of the final solidification product at about 400/sup 0/C. Leaching experiments on incorporated blocks of active resins labelled with Cs-137 and Ce-144 showed that cesium activity was more released in leachant solutions than was cerium activity. Cumulative leaching rates for both Cs and Ce were lower in deionized water than in underground water. The mechanical, thermal, and leaching data obtained illustrate the suitability of PMMA for immobilization of spent ion-exchange resins with low specific activity.
- Research Organization:
- Atomic Energy Authority, Cairo, Egypt
- OSTI ID:
- 5526323
- Journal Information:
- J. Appl. Polym. Sci.; (United States), Vol. 28:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ION EXCHANGE MATERIALS
PERFORMANCE TESTING
RADIOACTIVE WASTE DISPOSAL
PMMA
PHYSICAL RADIATION EFFECTS
RADIOACTIVE WASTE PROCESSING
SOLIDIFICATION
CERIUM
CESIUM 137
CESIUM 144
CHEMICAL RADIATION EFFECTS
COMPARATIVE EVALUATIONS
HIGH TEMPERATURE
LEACHING
RADIATION DOSES
RESINS
SIMULATION
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM ISOTOPES
CHEMISTRY
DISSOLUTION
DOSES
ELEMENTS
ESTERS
ISOTOPES
MANAGEMENT
MATERIALS
METALS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHASE TRANSFORMATIONS
POLYACRYLATES
POLYMERS
POLYVINYLS
PROCESSING
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOISOTOPES
RARE EARTHS
SECONDS LIVING RADIOISOTOPES
SEPARATION PROCESSES
TESTING
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING
YEARS LIVING RADIOISOTOPES
052000* - Nuclear Fuels- Waste Management
360406 - Materials- Polymers & Plastics- Radiation Effects- (-1987)