The Induced Changes in the Bulk Etch Rate and the Thermal Stability of PADC by the Effect of Long Storing Time at Room Temperature and Heat Treatment | ||||
| Arab Journal of Nuclear Sciences and Applications | ||||
| Article 6, Volume 52, Issue 1, January 2019, Page 44-55 PDF (1.85 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajnsa.2018.2917.1058 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Marwa Yehia Shoeib 
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| Basic Science Department (Physics), Modern Academy for Engineering & Technology in Maadi,Cairo, Egypt. | ||||
| Abstract | ||||
| The samples of poly allyl diglycol carbonate PADC (CR-39) (stored and fresh samples) polymer track detectors have been heated for different annealing temperatures and different annealing times. The thermal stability has been studied for different annealed samples; also it was examined as a function of storage time. The degree of crystallinity percentage has been studied for different annealed samples and stored samples. The samples were etched in 6 M KOH solution at 70°C for 3 h as etchant duration. The variation of bulk etch rate of isochronal annealed samples has been studied. The results indicate an improvement in the thermal stability of Poly allyl diglycol carbonate PADC; where the bulk etch rate increases with the increase in the annealing temperature and annealing time. The storage time has no noticeable effect on the bulk etch rate of un- annealed samples, though the thermal stability of PADC improved with increasing the storage time. | ||||
| Keywords | ||||
| CR-39; Annealing Temperature; storage time; Thermal stability; Activation energy | ||||
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