Publication detail

Viscoelastic response of nanocomposite poly(vinyl acetate)-hydroxyapatite with varying particle shape - Dynamic strain softening and modulus recovery

KALFUS, J. JANČÁŘ, J.

Original Title

Type

journal article - other

Language

English

Original Abstract

Dynamic-strain softening known as the Payne effect was investigated in the case of poly(vinyl acetate)-hydroxyapatite (PVAc-HA) model nanocomposites in which the nanoparticles served as reversible physical cross-links. HA nanofillers with different particle shape and with size ranging from 5 to 60 nm were used. Filler concentration in PVAc nanocomposites was limited to maximum of 5 vol%. Dynamic-mechanical spectra were recorded as a function of structural variables, strain amplitude, and test temperature using the dynamic-mechanical thermal spectroscopy (DMTS). Additionally, amplitude sweep tests were supplemented by the modulus recovery experiments to provide relaxation time data. Observed phenomena were interpreted using polymer physics approach.

Keywords

Payne effect, particle shape, viscoelasticity, immobilization

Authors

KALFUS, J.; JANČÁŘ, J.

RIV year

2007

Released

5. 11. 2007

Publisher

Wiley Interscience

ISBN

0272-8397

Periodical

Polymer Composites

Year of study

Number

State

United States of America

Pages from

743

Pages to

747

Pages count

BibTex

@article{BUT45316,
  author="Jan {Kalfus} and Josef {Jančář}",
  title="Viscoelastic response of nanocomposite poly(vinyl acetate)-hydroxyapatite with varying particle shape - Dynamic strain softening and modulus recovery",
  journal="Polymer Composites",
  year="2007",
  volume="28",
  number="6",
  pages="743--747",
  issn="0272-8397"
}