Publication detail

The adhesion of plasma nanocoatings controls the shear properties of GF/polyester composite

PLICHTA, T. ŠIRJOVOVÁ, V. ZVONEK, M. KALINKA, G. ČECH, V.

Original Title

The adhesion of plasma nanocoatings controls the shear properties of GF/polyester composite

Type

journal article in Web of Science

Language

English

Original Abstract

High-performance fibre-reinforced polymer composites are important construction materials based not only on the specific properties of the reinforcing fibres and the flexible polymer matrix, but also on the compatible properties of the composite interphase. First, oxygen-free (a-CSi:H) and oxygen binding (a-CSiO:H) plasma nanocoatings of different mechanical and tribological properties were deposited on planar silicon dioxide substrates that closely mimic E-glass. The nanoscratch test was used to characterize the nanocoating adhesion expressed in terms of critical normal load and work of adhesion. Next, the same nanocoatings were deposited on E-glass fibres, which were used as reinforcements in the polyester composite to affect its interphase properties. The shear properties of the polymer composite were characterized by macro- and micromechanical tests, namely a short beam shear test to determine the short-beam strength and a single fibre push-out test to determine the interfacial shear strength. The results of the polymer composites showed a strong correlation between the short-beam strength and the interfacial shear strength, proving that both tests are sensitive to changes in fibre-matrix adhesion due to different surface modification of glass fibres (GF). Finally, a strong correlation between the shear properties of the GF/polyester composite and the adhesion of the plasma nanocoating expressed through the work of adhesion was demonstrated. Thus, increasing the work of adhesion of plasma nanocoatings from 0.8 to 1.5 mJ·m-2 increased the short-beam strength from 23.1 to 45.2 MPa. The results confirmed that the work of adhesion is a more suitable parameter to characterise the level of nanocoating adhesion in comparison with the critical normal load.

Keywords

Plasma nanocoatings; glass fibre; polymer composite; short-beam strength; interfacial shear strength; work of adhesion; mechanical properties

Authors

PLICHTA, T.; ŠIRJOVOVÁ, V.; ZVONEK, M.; KALINKA, G.; ČECH, V.

Released

16. 2. 2021

Publisher

MDPI

ISBN

2073-4360

Periodical

Polymers

Year of study

13

Number

4

State

Swiss Confederation

Pages from

1

Pages to

15

Pages count

15

URL

https://www.mdpi.com/2073-4360/11/7/1188

Full text in the Digital Library

http://hdl.handle.net/11012/196365

BibTex

@article{BUT170087,
  author="Tomáš {Plichta} and Veronika {Širjovová} and Milan {Zvonek} and Gerhard {Kalinka} and Vladimír {Čech}",
  title="The adhesion of plasma nanocoatings controls the shear properties of GF/polyester composite",
  journal="Polymers",
  year="2021",
  volume="13",
  number="4",
  pages="1--15",
  doi="10.3390/polym13040593",
  issn="2073-4360",
  url="https://www.mdpi.com/2073-4360/11/7/1188"
}