Effect of magnesium ions on the adsorption of poly(acrylic acid) onto alumina

被引：40

作者：

Sun, J ^{[1
]}

Bergström, L

Gao, L

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Inst Surface Chem, YKI, SE-11486 Stockholm, Sweden

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2001年 / 84卷 / 11期

关键词：

D O I：

10.1111/j.1151-2916.2001.tb01078.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The adsorption isotherms of poly(acrylic acid) (PAA) onto alumina powder have been determined as a function of pH, ionic strength, and magnesium-ion concentration. The adsorption of PAA is strongly enhanced by magnesium ions in alkaline media but less affected under acidic conditions. The adsorption isotherms display a maximum when PAA is fully complexed with magnesium ions in the solution, corresponding to a ratio of 0.25 +/- 0.05 [Mg2+]/[acrylic acid monomer]. The decrease in adsorbed amount with an increase in PAA concentration at constant magnesium-ion concentration is related to a decrease in the complexation ratio.

引用

页码：2710 / 2712

页数：3

共 18 条

[1] CRITICAL CONCENTRATION OF MGO FOR THE PREVENTION OF ABNORMAL GRAIN-GROWTH IN ALUMINA [J].

BAE, SI ;

BAIK, S .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (10) :2499-2504

[2] Processing of aqueous alpha-Al2O3, alpha-SiO2 and alpha-SiC suspensions with polyelectrolytes. [J].

Baklouti, S ;

Pagnoux, C ;

Chartier, T ;

Baumard, JF .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1997, 17 (12) :1387-1392

[3]

BENNISON SJ, 1990, CERAM TRANS, V7, P13

[4]

*BIO RAD CHEM DIV, 1999, BIO RAD PROT ASS

[5] PROCESSING OF HIGHLY CONCENTRATED AQUEOUS ALPHA-ALUMINA SUSPENSIONS STABILIZED WITH POLY-ELECTROLYTES [J].

CESARANO, J ;

AKSAY, IA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1988, 71 (12) :1062-1067

[6] STABILITY OF AQUEOUS ALPHA-AL2O3 SUSPENSIONS WITH POLY(METHACRYLIC ACID) POLY-ELECTROLYTE [J].

CESARANO, J ;

AKSAY, IA ;

BLEIER, A .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1988, 71 (04) :250-255

[7] EFFECT OF DISPERSANTS ON THE RHEOLOGICAL PROPERTIES AND SLIP CASTING OF CONCENTRATED ALUMINA SLURRY [J].

CHOU, KS ;

LEE, LJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1989, 72 (09) :1622-1627

[8] EFFECT OF CALCIUM-IONS ON THE ADSORPTION OF POLYACRYLIC-ACID ONTO ALUMINA [J].

DUPONT, L ;

FOISSY, A ;

MERCIER, R ;

MOTTET, B .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1993, 161 (02) :455-464

[9] ADSORPTION OF POLYACRYLIC-ACID ON TITANIUM-DIOXIDE [J].

FOISSY, A ;

ATTAR, AE ;

LAMARCHE, JM .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1983, 96 (01) :275-287

[10] Stabilizing ceramic suspensions using anionic polyelectrolytes:: Adsorption kinetics and interparticle forces [J].

Guldberg-Pedersen, H ;

Bergström, L .

ACTA MATERIALIA, 2000, 48 (18-19) :4563-4570

← 1 2 →