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Synthesis and Mechanism of Shrinkage-Reducing Polycarboxylate Superplasticizer
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Haosheng GE1, 2, Zhenping SUN1, 2, Haijing YANG1, 2, Kunpeng ZHENG3, Ting ZHANG1, 2, Yong CAO4
Journal of the Chinese Ceramic Society | 2023, 51(5) : 1293 - 1301
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Journal of the Chinese Ceramic Society | 2023, 51(5): 1293-1301
• Research Articles •
Synthesis and Mechanism of Shrinkage-Reducing Polycarboxylate Superplasticizer
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Haosheng GE1, 2, Zhenping SUN1, 2, Haijing YANG1, 2, Kunpeng ZHENG3, Ting ZHANG1, 2, Yong CAO4
Affiliations
  • 1.School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
  • 2.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China
  • 3.CREEC (Chongqing) Survey, Design and Research CO., Ltd., Chongqing 400023, China
  • 4.Jiangsu Chengyi Group Co., Ltd., Xuzhou 221699, Jiangsu, China

    • GE Haosheng (1994-), male, Doctoral candidate. E-mail:

About Author:

GE Haosheng (1994-), male, Doctoral candidate. E-mail:

Published: 2023-05-20 doi: 10.14062/j.issn.0454-5648.20220922
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To provide a theoretical reference for reducing the shrinkage and cracking of concrete and promoting the development and application of the shrinkage-reducing polycarboxylate superplasticizer, a shrinkage-reducing polycarboxylate superplasticizer (SR-PCE) with dispersion and shrinkage reducing properties was synthesized via free radical polymerization with isopentenyl polyoxyethylene ether (IPEG), acrylic acid (AA), butyl acrylate (BA) and other monomers. The molecular structure of SR-PCE was characterized by gel permeation chromatography and Fourier transform infrared spectroscopy, and its shrinkage reduction mechanism was analyzed. The results show that the molecular structure of SR-PCE is a designed structure. The optimum shrinkage reducing performance of the synthesized PCE can be obtained at a molar ratio of IPEG∶AA∶BA of 1∶5∶4. The mechanism of SR-PCE with the optimum shrinkage reducing performance mainly is since SR-PCE can further reduce the surface tension of the solution rather than ordinary PCE, SR-PCE can reduce the evaporation rate of the pore solution of cement paste and improve the pore water retention.

molecular structure design  /  free radical polymerization  /  shrinkage reducing polycarboxylate superplasticizer  /  mechanism  /  surface tension
葛好升, 孙振平, 杨海静, 郑琨鹏, 张挺, 曹永. 减缩型聚羧酸系减水剂的制备及机理. 硅酸盐学报, 2023 , 51 (5) : 1293 -1301 . DOI: 10.14062/j.issn.0454-5648.20220922
Haosheng GE, Zhenping SUN, Haijing YANG, Kunpeng ZHENG, Ting ZHANG, Yong CAO. Synthesis and Mechanism of Shrinkage-Reducing Polycarboxylate Superplasticizer[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (5) : 1293 -1301 . DOI: 10.14062/j.issn.0454-5648.20220922
Appendix
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Year 2023 volume 51 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20220922
  • Receive Date：2022-10-26
  • Online Date：2026-10-20
  • Published：2023-05-20
Article Data
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History
  • Received：2022-10-26
  • Revised：2022-11-03
Funding
Affiliations
    1.School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
    2.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China
    3.CREEC (Chongqing) Survey, Design and Research CO., Ltd., Chongqing 400023, China
    4.Jiangsu Chengyi Group Co., Ltd., Xuzhou 221699, Jiangsu, China

Corresponding:

SUN Zhenping (1969-), male, Ph.D., Professor. 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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