350 rub
Journal №3 for 2012 г.
Article in number:
Morphology and molecular structure of composite polyethylene and polytetrafluoroethylene coatings, formed from active gas phase
Keywords: политетрафторэтилен полиэтилен нанокомпозиционные покрытия молекулярная структура ориентация морфология
Authors:
A.A. Rogachev
Abstract:
The peculiarities of the molecular structure of one-component coating of polyethylene, polytetrafluoroethylene and nanocomposite layers based on them, deposited from active gas phase by dispersing the initial components in a vacuum via beam of accelerated electrons were studied. It is found that during deposition of coatings the polymerization processes and structure formation of condensed layer on the solid surface are interrelated and occur simultaneously. The results show that the molecular orientation of the macromolecules in the formed layers changes in the growth of the coating. In the initial stages of the macromolecules tend to grow parallel to the substrate surface. With a thickness of 50 nm layers of molecules are oriented predominantly perpendicular to the surface. In nanocomposite PTFE+PE layers the orientation of PTFE macromolecules is highly dependent on their concentration.
Pages: 7-15
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