Plasma polymer film as model interlayer for polymer composites

ČECH, V.

Original Title

Plasma polymer film as model interlayer for polymer composites

English Title

Plasma polymer film as model interlayer for polymer composites

Type

Lecture

Original Abstract

We point out a plasma-chemical nanotechnology (PE CVD) that is worthwhile for preparation of thin and ultrathin films of controlled mechanical properties. Plasma-polymerised films of vinyltriethoxysilane have been deposited on planar substrates and analysed employing nanoindentation measurements with respect to the Young's modulus of films, adhesion bonding at the film/glass interface, chemical composition and structure. The modulus of plasma polymer film can be controlled simply by the effective power fed into the capacitive-coupled low-pressure plasma. The single film was tested as an interlayer in GF/polyester composites. Glass fibre (GF) bundles were surface modified by plasma polymer in a unique technological system enabling continuous processing of the bundle. GF/polyester composites in a form of short beams have been fabricated using the coated fibres and tested according to the standard test method. By increasing the interlayer modulus, the short-beam strength has enhanced up to 112% in a comparison with untreated glass fibres and that enhancement has been supported by an improvement of interfacial bonding as well.

English abstract

We point out a plasma-chemical nanotechnology (PE CVD) that is worthwhile for preparation of thin and ultrathin films of controlled mechanical properties. Plasma-polymerised films of vinyltriethoxysilane have been deposited on planar substrates and analysed employing nanoindentation measurements with respect to the Young's modulus of films, adhesion bonding at the film/glass interface, chemical composition and structure. The modulus of plasma polymer film can be controlled simply by the effective power fed into the capacitive-coupled low-pressure plasma. The single film was tested as an interlayer in GF/polyester composites. Glass fibre (GF) bundles were surface modified by plasma polymer in a unique technological system enabling continuous processing of the bundle. GF/polyester composites in a form of short beams have been fabricated using the coated fibres and tested according to the standard test method. By increasing the interlayer modulus, the short-beam strength has enhanced up to 112% in a comparison with untreated glass fibres and that enhancement has been supported by an improvement of interfacial bonding as well.

Keywords

composite; interface/interphase; interlayer

Key words in English

composite; interface/interphase; interlayer

Authors

ČECH, V.

Released

26.04.2005

Location

MFF, Karlova univerzita, Praha

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@misc{BUT64918,
  author="Vladimír {Čech}",
  title="Plasma polymer film as model interlayer for polymer composites",
  year="2005",
  address="MFF, Karlova univerzita, Praha"
}