| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1315774 | Journal of Fluorine Chemistry | 2006 | 6 Pages |
Gamma-radiation induced degradation of polytetrafluoroethylene (PTFE) in 60 wt.% dispersion was studied in the dose range of 20–200 kGy and the change in property of PTFE was characterized by differential scanning calorimetry (DSC), photon cross correlation spectroscopy (PCCS), X-ray diffraction (XRD), scanning electron microscopy (SEM), FT-IR spectroscopy and X-ray photoelectron spectroscope (XPS). It was found that the mean particle size of PTFE reduces from 250 nm of the control to 170 nm at 100 kGy, as confirmed by dynamic laser scattering and SEM. The crystallinity degree of PTFE increased at 20 kGy but remained unvaried at higher dose level. G-value of scission, G(s), was determined to be 0.46 μmol/J.
Graphical abstractGamma-radiation induced degradation of polytetrafluoroethylene (PTFE) in 60 wt.% dispersion was studied in the dose range of 20–200 kGy and the mean particle size of PTFE was found to decrease with dose, as measured by PCCS and SEM. Figure optionsDownload full-size imageDownload as PowerPoint slide
