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Volume 16
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10.3390/polym16233272
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Article

Effect of Density of Acrylic Acid Ester on Sulfonate-Modified Polycarboxylate Superplasticizers on Cementitious Systems

by
Yuxiang Xie
1,
Zixuan Zhang
2,
Yujie Chen
1,
Xu Ren
1,3,
Yuan Liu
4,5,
Jia Tao
4,5,
Runxia Liu
4,5,
Min Li
1,3 and
Ziwei Li
1,*
1
Guizhou Provincial Key Laboratory of Green Chemical and Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
2
North Alabama International College of Engineering and Technology, Guizhou University, Guiyang 550025, China
3
School of Civil Engineering, Guizhou Institute of Technology, Guiyang 550025, China
4
China Railway Fifth Bureau Group Co., Ltd., Guiyang 550003, China
5
Guizhou Tianwei Building Materials Technology Co., Ltd., Guiyang 550025, China
*
Author to whom correspondence should be addressed.
Polymers 2024, 16(23), 3272; https://doi.org/10.3390/polym16233272
Submission received: 4 October 2024 / Revised: 18 November 2024 / Accepted: 22 November 2024 / Published: 24 November 2024
(This article belongs to the Section Polymer Applications)
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Abstract

To tackle high viscosity in fresh concretes, especially high-performance concrete, the research of polycarboxylate superplasticizers (PCEs) is relevant. By designing the molecular structure of PCEs, problems such as pumping difficulties in high viscosity of high-performance concrete can be solved. Therefore, in this paper, a suite of novel viscosity reducing PCEs containing sulfonic acid groups and different acrylate densities were synthesized on the basis of inventive molecular structure design, and characterized to determine the predicted structure. The maximum adsorption, the best fluidity, and the Minimum zeta potential value can be seen for PCEs with a small number of ester groups (PCE-MA0.5) due to the combination of the rigidity of its backbone and the density of the adsorption groups. Moreover, the investigation of working mechanism showed the introduction of ester groups can significantly reduce viscosity, but also reduces the adsorption capacity. This research aims to propose a feasible method for synthesizing PCE with superior processability and viscosity reduction capability in cement and concrete.
Keywords: polycarboxylate superplasticizer; conformation; anion density; adsorption capacity; viscosity reduction polycarboxylate superplasticizer; conformation; anion density; adsorption capacity; viscosity reduction

Share and Cite

MDPI and ACS Style

Xie, Y.; Zhang, Z.; Chen, Y.; Ren, X.; Liu, Y.; Tao, J.; Liu, R.; Li, M.; Li, Z. Effect of Density of Acrylic Acid Ester on Sulfonate-Modified Polycarboxylate Superplasticizers on Cementitious Systems. Polymers 2024, 16, 3272. https://doi.org/10.3390/polym16233272

AMA Style

Xie Y, Zhang Z, Chen Y, Ren X, Liu Y, Tao J, Liu R, Li M, Li Z. Effect of Density of Acrylic Acid Ester on Sulfonate-Modified Polycarboxylate Superplasticizers on Cementitious Systems. Polymers. 2024; 16(23):3272. https://doi.org/10.3390/polym16233272

Chicago/Turabian Style

Xie, Yuxiang, Zixuan Zhang, Yujie Chen, Xu Ren, Yuan Liu, Jia Tao, Runxia Liu, Min Li, and Ziwei Li. 2024. "Effect of Density of Acrylic Acid Ester on Sulfonate-Modified Polycarboxylate Superplasticizers on Cementitious Systems" Polymers 16, no. 23: 3272. https://doi.org/10.3390/polym16233272

APA Style

Xie, Y., Zhang, Z., Chen, Y., Ren, X., Liu, Y., Tao, J., Liu, R., Li, M., & Li, Z. (2024). Effect of Density of Acrylic Acid Ester on Sulfonate-Modified Polycarboxylate Superplasticizers on Cementitious Systems. Polymers, 16(23), 3272. https://doi.org/10.3390/polym16233272

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