A thermal model to describe kinetic dispersion in rubber nanocomposites: The effect of mixing time on dispersion
A thermal model to describe kinetic dispersion in rubber nanocomposites: The effect of mixing time on dispersion
复制标题
描述橡胶纳米复合材料动力学分散的热模型:混合时间对分散的影响
DOI:
10.1016/j.polymer.2019.03.044
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发表时间:
2019
期刊:
影响因子:
4.6
通讯作者:
Rackaitis, Mindaugas
中科院分区:
文献类型:
--
作者:
Rishi, Kabir;Narayanan, Vishak;Beaucage, Gregory;McGlasson, Alex;Kuppa, Vikram;Ilavsky, Jan;Rackaitis, Mindaugas
Nanocomposites can be produced by a variety of processes. A common method used in industry is to mix a viscous polymer such as an elastomer compound, with nanofillers in a Brabender mixer or in a calendar. Dispersion has been quantified using a mixing index, D R, that is based on micrographs of reinforced elastomers on the micron-scale. A recently developed technique based on X-ray scattering allows for an alternative nano-scale description of dispersion based on a thermal-dispersion model where an analogy is made between temperature for thermal dispersion and nanocomposite processing conditions such as mixing time, mixing geometry, and viscosity for kinetic dispersion. In this paper the impact of mixing time on dispersion is investigated taking advantage of the van der Waals equation to describe excluded volume and interaction energy in the dispersion. It is found that the thermal-dispersion analogy is well behaved and can determine the wetting time for nano-scale incorporation of filler into elastomer. The nano-scale excluded volume depends only on the filler type and the excess excluded volume seems to be sensitive to the bound rubber layer. The pseudo-interaction energy is strongly dependent on viscosity and polymer chemistry. The thermal-dispersion model offers a novel approach to understanding kinetic dispersion in nanocomposites.
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DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
A. Coran;J. Donnet
通讯作者:
J. Donnet
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
Mischprozess Elektrische
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Mischprozess Elektrische
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
H. Kondo
通讯作者:
H. Kondo
影响因子:
5.5
作者:
Kabir Rishi;G. Beaucage;V. Kuppa;Andrew Mulderig;Vishak Narayanan;Alex McGlasson;M. Rackaitis;J. Ilavsky
通讯作者:
Kabir Rishi;G. Beaucage;V. Kuppa;Andrew Mulderig;Vishak Narayanan;Alex McGlasson;M. Rackaitis;J. Ilavsky
DOI:
--
发表时间:
1961
期刊:
影响因子:
--
作者:
A. Medalia
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A. Medalia