Publication detail

Mechanical response of plasma polymer interlayers in polymer composites

KNOB, A. BÁBÍK, A. ČECH, V. DRZAL, L.

Original Title

Type

abstract

Language

English

Original Abstract

The study is aimed at preparation and characterization of glass fiber (GF) reinforced polymer composites with controlled interphase formed by plasma-polymerized tetravinylsilane and tetravinylsilane/oxygen interlayer (thin film). The plasma polymer interlayers of specific physicochemical properties and thickness were deposited on fibers to improve interfacial adhesion in GF/polyester composites. The fiber surface was modified by using plasma enhanced chemical vapor deposition employing an RF (13.56 MHz) helical coupling system operated in a pulsed regime at an effective power of 0.1–10W and different treatment time. The process of plasma polymerization was preceded by plasma pretreatment, improving the film adhesion using oxygen and argon gasses or their mixtures. Pretreated surface of glass fibers was modified by single or bilayer film. Mechanical response of plasma polymer interlayers was characterized by microindentation test to evaluate the interfacial shear strength. Test results were related to the interlayer thickness and the interlayer modulus. The mechanical response (interfacial shear strength) for unsized (35 MPa), industrially sized (125 MPa), and plasma coated fibers at different polymerization conditions was compared. The interfacial shear strength for optimized pretreatment and plasma polymer interlayer (170 MPa) shows an increase by 36% compared to the industrial sizing.

Keywords

polymer composites; interphase; interlayer; glass fiber

Authors

KNOB, A.; BÁBÍK, A.; ČECH, V.; DRZAL, L.

Released

15. 9. 2014

Pages from

Pages to

Pages count

BibTex

@misc{BUT114079,
  author="Antonín {Knob} and Adam {Bábík} and Vladimír {Čech} and Lawrence {Drzal}",
  title="Mechanical response of plasma polymer interlayers in polymer composites",
  year="2014",
  pages="1--1",
  note="abstract"
}