کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1315774 976069 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on polytetrafluoroethylene aqueous dispersion irradiated by gamma ray
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Study on polytetrafluoroethylene aqueous dispersion irradiated by gamma ray
چکیده انگلیسی

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.

Gamma-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 as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluorine Chemistry - Volume 127, Issue 1, January 2006, Pages 91–96
نویسندگان
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