Synergistic effect of copolymer and poly(vinylpyrrolidone) mixtures on rheology of aqueous SiC suspensions

Chunxia Xiao; Lei Gao; Mingjing Lu; Han Chen; Lucun Guo; Lianbin Tao

doi:10.1016/j.colsurfa.2009.11.045

Synergistic effect of copolymer and poly(vinylpyrrolidone) mixtures on rheology of aqueous SiC suspensions

Chunxia Xiao, Lei Gao, Mingjing Lu, Han Chen, Lucun Guo, Lianbin Tao

College of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

With the addition of poly(vinylpyrrolidone) (PVP) as a second dispersant, the rheological behaviors of SiC suspensions dispersed with copolymer acrylic acid/2-acrylamido-2-methylpropane sulfonic acid sodium (AA/AMPS) in both acid and neutral condition were further improved remarkably. In the presence of PVP with small amount (0.1 wt%), yield stress of SiC suspensions was much lower than that dispersed with only AA/AMPS, and co-addition mode resulted in much higher stability of suspensions than sequential addition modes. The improvement on rheological measurement might derive from enhanced steric hindrance due to the formation of hydrogen bonding between adsorbed AA/AMPS and PVP, as supported by FTIR.

Original language	English
Pages (from-to)	104-108
Number of pages	5
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	355
Issue number	1-3
DOIs	https://doi.org/10.1016/j.colsurfa.2009.11.045
State	Published - 20 Feb 2010

Keywords

AA/AMPS
PVP
Rheology
SiC
Synergistic

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10.1016/j.colsurfa.2009.11.045

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title = "Synergistic effect of copolymer and poly(vinylpyrrolidone) mixtures on rheology of aqueous SiC suspensions",

abstract = "With the addition of poly(vinylpyrrolidone) (PVP) as a second dispersant, the rheological behaviors of SiC suspensions dispersed with copolymer acrylic acid/2-acrylamido-2-methylpropane sulfonic acid sodium (AA/AMPS) in both acid and neutral condition were further improved remarkably. In the presence of PVP with small amount (0.1 wt%), yield stress of SiC suspensions was much lower than that dispersed with only AA/AMPS, and co-addition mode resulted in much higher stability of suspensions than sequential addition modes. The improvement on rheological measurement might derive from enhanced steric hindrance due to the formation of hydrogen bonding between adsorbed AA/AMPS and PVP, as supported by FTIR.",

keywords = "AA/AMPS, PVP, Rheology, SiC, Synergistic",

author = "Chunxia Xiao and Lei Gao and Mingjing Lu and Han Chen and Lucun Guo and Lianbin Tao",

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TY - JOUR

T1 - Synergistic effect of copolymer and poly(vinylpyrrolidone) mixtures on rheology of aqueous SiC suspensions

AU - Xiao, Chunxia

AU - Gao, Lei

AU - Lu, Mingjing

AU - Chen, Han

AU - Guo, Lucun

AU - Tao, Lianbin

PY - 2010/2/20

Y1 - 2010/2/20

N2 - With the addition of poly(vinylpyrrolidone) (PVP) as a second dispersant, the rheological behaviors of SiC suspensions dispersed with copolymer acrylic acid/2-acrylamido-2-methylpropane sulfonic acid sodium (AA/AMPS) in both acid and neutral condition were further improved remarkably. In the presence of PVP with small amount (0.1 wt%), yield stress of SiC suspensions was much lower than that dispersed with only AA/AMPS, and co-addition mode resulted in much higher stability of suspensions than sequential addition modes. The improvement on rheological measurement might derive from enhanced steric hindrance due to the formation of hydrogen bonding between adsorbed AA/AMPS and PVP, as supported by FTIR.

AB - With the addition of poly(vinylpyrrolidone) (PVP) as a second dispersant, the rheological behaviors of SiC suspensions dispersed with copolymer acrylic acid/2-acrylamido-2-methylpropane sulfonic acid sodium (AA/AMPS) in both acid and neutral condition were further improved remarkably. In the presence of PVP with small amount (0.1 wt%), yield stress of SiC suspensions was much lower than that dispersed with only AA/AMPS, and co-addition mode resulted in much higher stability of suspensions than sequential addition modes. The improvement on rheological measurement might derive from enhanced steric hindrance due to the formation of hydrogen bonding between adsorbed AA/AMPS and PVP, as supported by FTIR.

KW - AA/AMPS

KW - PVP

KW - Rheology

KW - SiC

KW - Synergistic

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U2 - 10.1016/j.colsurfa.2009.11.045

DO - 10.1016/j.colsurfa.2009.11.045

M3 - 文章

AN - SCOPUS:74149083981

SN - 0927-7757

VL - 355

SP - 104

EP - 108

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

IS - 1-3

ER -

Synergistic effect of copolymer and poly(vinylpyrrolidone) mixtures on rheology of aqueous SiC suspensions

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Keywords

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