Publication result 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
Viscoelastic response of nanocomposite poly(vinyl acetate)-hydroxyapatite with varying particle shape - Dynamic strain softening and modulus recovery
English Title
Viscoelastic response of nanocomposite poly(vinyl acetate)-hydroxyapatite with varying particle shape - Dynamic strain softening and modulus recovery
Type
Peer-reviewed article not indexed in WoS or Scopus
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.
English 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
Key words in English
Payne effect, particle shape, viscoelasticity, immobilization
Authors
KALFUS, J.; JANČÁŘ, J.
Released
05.11.2007
Publisher
Wiley Interscience
ISBN
0272-8397
Periodical
POLYMER COMPOSITES
Volume
28
Number
6
State
United States of America
Pages from
743
Pages to
747
Pages count
5
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"
}