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Anti-Clay Property and Action Principle of Polycarboxylate Superplasticizer Improved by Cationic Polymer
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Nanxiao GAO1, 2, Jian CHEN1, 2, 3, Shuang ZHAO1, 2, Min QIAO1, 2, 3, Guangcheng SHAN1, 2
Journal of the Chinese Ceramic Society | 2020, 48(11) : 1834 - 1841
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Journal of the Chinese Ceramic Society | 2020, 48(11): 1834-1841
• Research Articles •
Anti-Clay Property and Action Principle of Polycarboxylate Superplasticizer Improved by Cationic Polymer
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Nanxiao GAO1, 2, Jian CHEN1, 2, 3, Shuang ZHAO1, 2, Min QIAO1, 2, 3, Guangcheng SHAN1, 2
Affiliations
  • 1.State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 211103, China
  • 2.Jiangsu Sobute New Materials Co. Ltd., Nanjing 211103, China
  • 3.Bote New Materials Taizhou Co., Ltd., Taizhou 225474, Jiangsu, China

    • GAO Nanxiao (1984-), female, Master, Senior Engineer. E-mail:

About Author:

GAO Nanxiao (1984-), female, Master, Senior Engineer. E-mail:

Published: 2020-11-20 doi: 10.14062/j.issn.0454-5648.20200072
Outline
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A series of cationic sacrificial agents (CSA) were synthesized via free radical copolymerization of unsaturated quaternary ammonium salt monomer and unsaturated nonionic (anion) monomer. The effect of sacrificial agent on the dispersion of polycarboxylate superplasticizer in cement mixed with montmorillonite (MMT) was evaluated via the fluidity of cement paste. Also, the effects of monomer polymerization ratio, quaternary ammonium salt monomer type and nonionic (anionic) monomer type on the action effect of the sacrificial agent were investigated by organic carbon analysis, thermogravimetry, X-ray diffraction, and scanning electron microscopy. Trimethyl allyl ammonium bromide-acrylamide (ATMA-AM 2∶1) was determined as an optimum structure, and its action mechanism was also analyzed. The fluidity of PCE in cement paste mixed with MMT increases from 156 mm to 225 mm at 1.0% of ATMA-AM (2∶1). The adsorption capacity of PCE on MMT and the holes on the surface of MMT all reduce, thus effectively preventing the polyether side chain of PCE molecule from entering the interlayer of MMT and enhancing MMT effect on the dispersion property of PCE.

cationic polymer  /  sacrificial agent  /  polycarboxylate superplasticizer  /  montmorillonite  /  adsorption  /  intercalation
高南箫, 陈健, 赵爽, 乔敏, 单广程. 阳离子聚合物改善聚羧酸减水剂抗泥性能及作用原理. 硅酸盐学报, 2020 , 48 (11) : 1834 -1841 . DOI: 10.14062/j.issn.0454-5648.20200072
Nanxiao GAO, Jian CHEN, Shuang ZHAO, Min QIAO, Guangcheng SHAN. Anti-Clay Property and Action Principle of Polycarboxylate Superplasticizer Improved by Cationic Polymer[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (11) : 1834 -1841 . DOI: 10.14062/j.issn.0454-5648.20200072
Appendix
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Year 2020 volume 48 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20200072
  • Receive Date：2020-02-14
  • Online Date：2026-10-29
  • Published：2020-11-20
Article Data
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History
  • Received：2020-02-14
  • Revised：2020-04-03
Funding
Affiliations
    1.State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 211103, China
    2.Jiangsu Sobute New Materials Co. Ltd., Nanjing 211103, China
    3.Bote New Materials Taizhou Co., Ltd., Taizhou 225474, Jiangsu, China

Corresponding:

QIAO Min (1984-), male, Ph.D., Senior Engineer. E-mail:
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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