Modification of polyethylene terephthalate by proton irradiation
| Autor: | N.L. Singh, C. F. Desai, Sunil K. Arora, K. P. Singh, Nilam Shah |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Nuclear and High Energy Physics
Thermogravimetric analysis Radiation Materials science Dielectric Condensed Matter Physics Fluence Indentation hardness chemistry.chemical_compound chemistry Electrical resistivity and conductivity Polyethylene terephthalate General Materials Science Irradiation Fourier transform infrared spectroscopy Composite material |
| Zdroj: | Radiation Effects and Defects in Solids. 159:475-482 |
| ISSN: | 1029-4953 1042-0150 |
| DOI: | 10.1080/10420150412331296844 |
| Popis: | Polyethylene terephthalate (PET) films were irradiated with 3 MeV proton beams at different fluences. The microhardness, electrical, thermal and structural studies were carried out using microhardness tester, LCR meter, thermogravimetric analysis (TGA) and FTIR spectroscopy. Vickers' hardness has been observed to increase with the fluence. The true bulk hardness of the film was obtained at loads greater than 400 mN. The AC electrical conductivity is practically unaffected by irradiation up to a frequency of 10 kHz, but it is found to increase exponentially at a frequency of 300 kHz. The loss factor and dielectric constant are observed to change appreciably with the fluence. It is observed that there is no significant change in the stability of the polymer up to the fluence of 1014 ions cm−2 as revealed by TGA and FTIR spectroscopy. |
| Databáze: | OpenAIRE |
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