Zobrazeno 91 - 100
of 158
pro vyhledávání: '"Ewa Piorkowska"'
Publikováno v:
Polymer. 45:4877-4892
The crystallization of nanocomposites of isotactic polypropylenes with organo modified montmorillonite compatibilized by maleic anhydride grafted polypropylene was studied by light microscopy in isothermal conditions in quiescent state and in shear.
Publikováno v:
Polimery. 49:240-247
General characteristics of polymeric nanocomposites containing montmorillonite (MMT) as well as the results of research concerning preparation and properties of nanocomposites with this filler, based on isotactic polypropylene (i-PP) or low density p
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 42:3380-3396
Films with a thousand alternating layers of isotactic polypropylene (PP) and polystyrene (PS) were prepared by layer-multiplying coextrusion. The crystal structure of extremely thin PP layers confined between PS layers was studied by optical light mi
Autor:
Ewa Piorkowska, Gregory C. Rutledge
Polymeric crystals are more complex in nature than other materials'crystal structures due to significant structural disorder present. The only comprehensive reference on polymer crystallization, Handbook of Polymer Crystallization provides readers wi
Autor:
Ewa Piorkowska, Krystyna Gadzinowska
Publikováno v:
Polimery. 48:790-799
The crystallization of isotactic polypropylene was studied by DSC method at a standard cooling rate of 10 deg/min. The samples were in the forms of sandwiches comprising polymer films of various thickness and layers of foreign materials. After the cr
Publikováno v:
Scopus-Elsevier
Publikováno v:
Polimery. 48:194-203
The effect of the process of blowing extrusion of PA film on its structure and physical properties (measured by transmission microscopy, DSC, small angle light scattering, X-ray diffraction, IR spectroscopy) as well as mechanical properties at tensio
Autor:
Ewa Piorkowska, Andrzej Galeski
Publikováno v:
Scopus-Elsevier
Applications of the probabilistic model of spherulitic structure formation are demonstrated. The model permits prediction of the conversion of melt into spherulites in complicated crystallization conditions, including crystallization in a finite volu
Autor:
Ewa Piorkowska, Andrzej Galeski
Publikováno v:
Journal of Applied Polymer Science. 86:1363-1372
We modeled crystallization of isotactic polypropylene inside plates, rods, and pipes during cooling. The modeling was based on the solution of the heat conduction equation, which takes into account the liberation of the heat of crystallization. The p
Publikováno v:
Journal of Applied Polymer Science. 86:1318-1328
The influence of temperature gradient on the lamellar structure of isotactic polypropylene spherulites was studied. Polypropylene films were crystallized in a constant temperature gradient of 35 K/mm with the free surface and studied by means of atom