A rheological method for selecting nano-kaolin powder as filler in SBR rubber

This paper shows that the stiffness ofstyrene-butadiene solid rubber with added kaolin powder is related to the yield stress of kaolin dispersion in liquid polybutadiene rubber up to the percolation threshold. For five kinds of kaolin powder, the value of τ° spans the range of 100-430 Pa, while the...

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Veröffentlicht in:Particuology 2010-06, Vol.8 (3), p.245-250
Hauptverfasser: Lagazzo, Alberto, Lenzi, Sergio, Botter, Rodolfo, Cirillo, Paolo, Demicheli, Fabrizio, Beruto, Dario T.
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container_end_page 250
container_issue 3
container_start_page 245
container_title Particuology
container_volume 8
creator Lagazzo, Alberto
Lenzi, Sergio
Botter, Rodolfo
Cirillo, Paolo
Demicheli, Fabrizio
Beruto, Dario T.
description This paper shows that the stiffness ofstyrene-butadiene solid rubber with added kaolin powder is related to the yield stress of kaolin dispersion in liquid polybutadiene rubber up to the percolation threshold. For five kinds of kaolin powder, the value of τ° spans the range of 100-430 Pa, while the corresponding compressive elastic constant of SBR varies from 12 to 21 MPa. A relationship between τ° and △E~i^*/ER^* is proposed. Critical examination of these data infers that kaolin powder dispersed in solid rubber matrix acts as an additive which decreases the random movement of the polybutadiene chains. Consequently, dispersions of nano-particles in liquid and in solid SBR are considered to be related, thus leading to a theological method for selecting nano-particles as fillers in solid SBR.
doi_str_mv 10.1016/j.partic.2010.03.014
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subjects Dispersions
Filler dispersion
Kaolin
Liquid polybutadiene
Liquids
Mathematical analysis
Nanocomposites
Nanomaterials
Nanostructure
Rheology
Rubber
SBR法
Stiffness
Styrene–butadiene rubber (SBR)
Yield stress
丁苯橡胶
固体填料
粉体分散
纳米技术
聚丁二烯橡胶
高岭土粉体
title A rheological method for selecting nano-kaolin powder as filler in SBR rubber
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