Open AccessВлияние gamma-облучения и допирования диоксидом кремния на свойства политетрафторэтилена
Author(s) -
V. M. Egorov,
П.Н. Якушев,
М.А. Арсентьев,
А.С. Смолянский
Publication year - 2019
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2019.07.47856.405
Subject(s) - polytetrafluoroethylene , irradiation , materials science , phase transition , composite number , composite material , mineralogy , analytical chemistry (journal) , chemistry , thermodynamics , physics , nuclear physics , environmental chemistry
V. M. Egorov1, P. N. Yakushev1, M. A. Arsentiev2,3, A.S. Smoliansky2,3.1Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia2 Branch of JSC Karpov NIFHI, Moscow, Russia3 Mendeleev University of Chemical Technology, Moscow, RussiaA comparative analysis for the melting of Polytetrafluoroethylene both in the initial and irradiated state and for composition with 1% "green" silica has been carried out. The method of Dynamic Mechanical Analysis was used to characterize the glass transitions for all compositions studied. The calculation based on the smeared first-order phase transition theory for the contours of the thermal capacity peaks made it possible to reveal the features of structural changes in the composite and in the irradiated Polytetrafluoroethylene.