Publication detail

Further Progress in Functional Interlayers with Controlled Mechanical Properties Designed for Glass Fiber/Polyester Composites

KNOB, A. LUKEŠ, J. ČECH, V. DRZAL, L.

Original Title

Further Progress in Functional Interlayers with Controlled Mechanical Properties Designed for Glass Fiber/Polyester Composites

Type

journal article in Web of Science

Language

English

Original Abstract

Compatible interlayers must be coated on reinforcing fibers to ensure effective stress transfer from the polymer matrix to the fiber in high-performance polymer composites. The mechanical properties of the interlayer, and its interfacial adhesion on both interfaces with the fiber and polymer matrix are among the key parameters that control the performance of polymer composite through the interphase region. Plasma-synthesized interlayers, in the form of variable materials from polymer-like to glass-like films with a Young’s modulus of 10–52 GPa, were deposited on unsized glass fibers used as reinforcements in glass fiber/polyester composites. Modulus Mapping (dynamic nanoindentation testing) was successfully used to examine the mechanical properties across the interphase region on cross-sections of the model composite in order to distinguish the fiber, the interlayer, and the modified and bulk polymer matrix. The interfacial shear strength for plasma-coated fibers in glass fiber/polyester composites, determined from the microindentation test, was up to 36% higher than those of commercially sized fibers. The effects of fiber pretreatment, single and double interlayers, and post-treatment of the interlayer on interfacial shear strength were also discussed. Functional interlayers with high shear yield strength and controlled physicochemical properties are promising for high-performance polymer composites with a controlled interphase.

Keywords

glass fiber; polymer-matrix composites; interface/interphase; nanoindentation; mechanical properties; microindentation test

Authors

KNOB, A.; LUKEŠ, J.; ČECH, V.; DRZAL, L.

Released

16. 8. 2018

Publisher

MDPI

ISBN

2079-6439

Periodical

Fibers

Year of study

6

Number

3

State

Swiss Confederation

Pages from

1

Pages to

18

Pages count

18

URL

https://www.mdpi.com/2079-6439/6/3/58

Full text in the Digital Library

http://hdl.handle.net/11012/188986

BibTex

@article{BUT150808,
  author="Antonín {Knob} and Jaroslav {Lukeš} and Vladimír {Čech} and Lawrence {Drzal}",
  title="Further Progress in Functional Interlayers with Controlled Mechanical Properties Designed for Glass Fiber/Polyester Composites",
  journal="Fibers",
  year="2018",
  volume="6",
  number="3",
  pages="1--18",
  doi="10.3390/fib6030058",
  issn="2079-6439",
  url="https://www.mdpi.com/2079-6439/6/3/58"
}