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作者:

Xu, Yurui (Xu, Yurui.) | Liu, Xiao (Liu, Xiao.) (学者:刘晓) | Jiang, Minghui (Jiang, Minghui.) | Lai, Guanghong (Lai, Guanghong.) | Li, Shiyu (Li, Shiyu.) | Wang, Ziming (Wang, Ziming.) | Cui, Suping (Cui, Suping.)

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EI Scopus SCIE

摘要:

In the synthesis of functional polycarboxylate superplasticizers (PCEs), ester monomer was usually used as small monomer or macromonomer. However, there were few studies on the co-introduction of small ester monomer and ester macromonomer into one PCE molecule and its effects. In this study, it was found an interesting behavior of competitive hydrolysis between these two ester monomers in diester PCE, which performed higher fluidity of cement paste, greater adsorption amount and shorter prolongation of the induction period of cement hydration due to the competitive hydrolysis. Furthermore, the kinetics of hydrolysis and adsorption of the diester PCE were probed, and the rate order was: ester macromonomer < small ester monomer < diester monomers. This study aims to innovatively reveal the special behavior and mechanism of competitive hydrolysis of PCE using diester monomers in cement-based materials and to provide a theoretical basis for enriching molecular design and innovative application of functional PCEs.

关键词:

Hydrolysis kinetics Cement paste Molecular design Ester Polycarboxylate superplasticizer Competitive hydrolysis

作者机构:

  • [ 1 ] [Xu, Yurui]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Xiao]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Jiang, Minghui]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Lai, Guanghong]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Li, Shiyu]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 6 ] [Wang, Ziming]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 7 ] [Cui, Suping]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 8 ] [Xu, Yurui]Beijing Univ Technol, Fac Mat & Mfg, Natl Engn Lab Ind Big Data Applicat Technol, Beijing 100124, Peoples R China
  • [ 9 ] [Liu, Xiao]Beijing Univ Technol, Fac Mat & Mfg, Natl Engn Lab Ind Big Data Applicat Technol, Beijing 100124, Peoples R China
  • [ 10 ] [Jiang, Minghui]Beijing Univ Technol, Fac Mat & Mfg, Natl Engn Lab Ind Big Data Applicat Technol, Beijing 100124, Peoples R China
  • [ 11 ] [Lai, Guanghong]Beijing Univ Technol, Fac Mat & Mfg, Natl Engn Lab Ind Big Data Applicat Technol, Beijing 100124, Peoples R China
  • [ 12 ] [Li, Shiyu]Beijing Univ Technol, Fac Mat & Mfg, Natl Engn Lab Ind Big Data Applicat Technol, Beijing 100124, Peoples R China
  • [ 13 ] [Wang, Ziming]Beijing Univ Technol, Fac Mat & Mfg, Natl Engn Lab Ind Big Data Applicat Technol, Beijing 100124, Peoples R China
  • [ 14 ] [Cui, Suping]Beijing Univ Technol, Fac Mat & Mfg, Natl Engn Lab Ind Big Data Applicat Technol, Beijing 100124, Peoples R China

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来源 :

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

ISSN: 0927-7757

年份: 2023

卷: 671

5 . 2 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:20

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 8

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

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