Detail publikačního výsledku

Surface modification of glass fibers by oxidized plasma coatings to improve interfacial shear strength in GF/polyester composites

ČECH, V.

Originální název

Surface modification of glass fibers by oxidized plasma coatings to improve interfacial shear strength in GF/polyester composites

Anglický název

Surface modification of glass fibers by oxidized plasma coatings to improve interfacial shear strength in GF/polyester composites

Druh

Článek WoS

Originální abstrakt

Plasma-polymerized films (interlayers) of tetravinylsilane in mixture with oxygen gas (oxygen fraction 0-0.71) were coated on glass fibers (GF) used as reinforcements in GF/polyester composite. Oxygen atoms of increased concentration (0-18 at.%) were partly incorporated into the plasma polymer network, forming Si-O-C/C-O-C bonding species and partly forming side polar (hydroxyl, carbonyl) groups with enhanced oxygen fraction. The amount of oxygen in plasma coatings influenced the Young’s modulus, interfacial adhesion, and surface free energy of the interlayer. To determine the interfacial shear strength, a microindentation test was implemented for individual glass fibers on a cross-section of GF/polyester composite. The interfacial shear strength for oxidized plasma coatings was up to 21% higher than that for the non-oxidized interlayer, indicating a direct chemical effect of oxygen atoms on interphase properties. The interphase shear failure was controlled by the shear strength at the interlayer/fiber interface as follows from experimental and model data.

Anglický abstrakt

Plasma-polymerized films (interlayers) of tetravinylsilane in mixture with oxygen gas (oxygen fraction 0-0.71) were coated on glass fibers (GF) used as reinforcements in GF/polyester composite. Oxygen atoms of increased concentration (0-18 at.%) were partly incorporated into the plasma polymer network, forming Si-O-C/C-O-C bonding species and partly forming side polar (hydroxyl, carbonyl) groups with enhanced oxygen fraction. The amount of oxygen in plasma coatings influenced the Young’s modulus, interfacial adhesion, and surface free energy of the interlayer. To determine the interfacial shear strength, a microindentation test was implemented for individual glass fibers on a cross-section of GF/polyester composite. The interfacial shear strength for oxidized plasma coatings was up to 21% higher than that for the non-oxidized interlayer, indicating a direct chemical effect of oxygen atoms on interphase properties. The interphase shear failure was controlled by the shear strength at the interlayer/fiber interface as follows from experimental and model data.

Klíčová slova

glass fiber; polymer-matrix composites; interface/interphase; nanoindentation; finite element method; microindentation test

Klíčová slova v angličtině

glass fiber; polymer-matrix composites; interface/interphase; nanoindentation; finite element method; microindentation test

Autoři

ČECH, V.

Rok RIV

2019

Vydáno

01.01.2019

ISSN

0272-8397

Periodikum

POLYMER COMPOSITES

Číslo

9

Stát

Spojené státy americké

Strany od

1

Strany do

8

Strany počet

8

URL

https://onlinelibrary.wiley.com/doi/full/10.1002/pc.24573

BibTex

@article{BUT150809,
  author="Vladimír {Čech}",
  title="Surface modification of glass fibers by oxidized plasma coatings to improve interfacial shear strength in GF/polyester composites",
  journal="POLYMER COMPOSITES",
  year="2019",
  number="9",
  pages="1--8",
  doi="10.1002/pc.24573",
  issn="0272-8397",
  url="https://onlinelibrary.wiley.com/doi/full/10.1002/pc.24573"
}