DocumentCode :
3488809
Title :
Study of physical ageing in amorphous polymer by thermo-stimulated currents (TSC)
Author :
Delbreilh, L. ; Bernès, A. ; Lacabanne, C.
Author_Institution :
Inst. des Materiaux de Rouen, Rouen Univ., Saint Etienne du Rouvray, France
fYear :
2005
fDate :
11-14 Sept. 2005
Firstpage :
491
Lastpage :
494
Abstract :
The physical ageing in amorphous polymer, polycarbonate, is studied by complementary techniques: thermally stimulated currents (TSC) and differential scanning calorimetry (DSC). The enthalpy relaxation is described by using the Tool, Narayanaswamy and Moynihan (TNM) phenomenological model where the relaxation time τH(T,Tf) depends both on temperature T fand fictive temperature Tf characteristic of the glass structure. We have shown the structural dependence of enthalpy relaxation time give prominence to the compensation law observed in dielectric relaxation times.
Keywords :
ageing; amorphous state; dielectric relaxation; differential scanning calorimetry; glass structure; polymers; thermally stimulated currents; DSC; TSC; ageing; amorphous polymer; dielectric relaxation; differential scanning calorimetry; enthalpy relaxation; glass structure; polycarbonate; thermostimulated currents; Aging; Amorphous materials; Calorimetry; Dielectric measurements; Glass; Heating; Instruments; Isothermal processes; Polymers; Temperature dependence;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrets, 2005. ISE-12. 2005 12th International Symposium on
Print_ISBN :
0-7803-9116-0
Type :
conf
DOI :
10.1109/ISE.2005.1612432
Filename :
1612432
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3488809
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