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Synthesis and Mechanism of Polyphosphate Superplasticizer
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Shanshan QIAN1, 2, Yan YAO1, 3, Ziming WANG1, Suping CUI1, Xiao LIU1, Chunyang ZHENG2
Journal of the Chinese Ceramic Society | 2021, 49(5) : 910 - 917
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Journal of the Chinese Ceramic Society | 2021, 49(5): 910-917
• Research Article •
Synthesis and Mechanism of Polyphosphate Superplasticizer
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Shanshan QIAN1, 2, Yan YAO1, 3, Ziming WANG1, Suping CUI1, Xiao LIU1, Chunyang ZHENG2
Affiliations
  • 1.Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • 2.Jiangsu China Railway ARIT New Materials Co., Ltd, Jiangsu Province Engineering Research Center (ARIT) of concrete polymer additives, Nanjing 211505
  • 3.China Building Materials Academy, The state key laboratory of green building materials, Beijing 100124, China

    • QIAN Shanshan(1986-), male, Doctoral candidate, Engineer. E-mail:

About Author:

QIAN Shanshan(1986-), male, Doctoral candidate, Engineer. E-mail:

Published: 2021-05-20 doi: 10.14062/j.issn.0454-5648.20200669
Outline
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Polyphosphate superplasticizer (PPS) was synthesized via free radical polymerization of isopropenyl-phosphonic acid (IPPA) and isopentenyl polyethylene-polypropylene glycol (IPEPPG) in the presence of ammonium persulphate (APS) as an intiator and sodium hypophosphite (SHP) as a chain transfer agent. The effects of n(IPPA)∶n(IPEPPG) molar ratio, APS amount, SHP amount and IPEPPG average molecular mass on the properties of polyphosphate superplasticizer were investigated to obtain the optimum parameters of technology and the appropriate proportion of raw materials. The molecular structure of polyphosphate superplasticizer was characterized by gel permeation chromatograph, Fourier transform infrared spectroscopy, and 1H nuclear magnetic resonance, respectively. The surface tension, hydrodynamic radius, adsorption behavior on MMT, heat flow evolution over time during cement hydration, rheological behavior of cement pastes and application performance in concrete were determined. The results show that polyphosphate superplasticizer has viscosity-reducing effect, clay tolerance and retard cement hydration.

polyphosphate superplasticizer  /  viscosity-reducing  /  clay tolerance  /  retard cement hydration  /  concrete
钱珊珊, 姚燕, 王子明, 崔素萍, 刘晓, 郑春扬. 聚膦酸减水剂的合成、表征及机理. 硅酸盐学报, 2021 , 49 (5) : 910 -917 . DOI: 10.14062/j.issn.0454-5648.20200669
Shanshan QIAN, Yan YAO, Ziming WANG, Suping CUI, Xiao LIU, Chunyang ZHENG. Synthesis and Mechanism of Polyphosphate Superplasticizer[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (5) : 910 -917 . DOI: 10.14062/j.issn.0454-5648.20200669
Appendix
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Year 2021 volume 49 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20200669
  • Receive Date：2020-09-02
  • Online Date：2026-10-30
  • Published：2021-05-20
Article Data
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History
  • Received：2020-09-02
  • Revised：2020-10-12
Funding
Affiliations
    1.Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
    2.Jiangsu China Railway ARIT New Materials Co., Ltd, Jiangsu Province Engineering Research Center (ARIT) of concrete polymer additives, Nanjing 211505
    3.China Building Materials Academy, The state key laboratory of green building materials, Beijing 100124, China

Corresponding:

YAO Yan(1957-), female, Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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