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Study on the Performance of Nonionic Waterborne Polyurethane and SBS Composite–Modified Emulsified Asphalt.

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Title: Study on the Performance of Nonionic Waterborne Polyurethane and SBS Composite–Modified Emulsified Asphalt.
Authors: Chen, Ruiqi1 (AUTHOR) ruiqi@whut.edu.cn, Chen, Yixing1 (AUTHOR) 13100692919@163.com, Xu, Wen1 (AUTHOR) wenxu@whut.edu.cn, Yu, Xilan2 (AUTHOR) wuyuanxilan@163.com, Zhang, Kai2 (AUTHOR) kaizhang@whut.edu.cn
Source: Journal of Materials in Civil Engineering. Jun2026, Vol. 38 Issue 6, p1-11. 11p.
Subjects: Asphalt emulsion mixtures, Polyurethanes, Road maintenance, Rheology, Viscoelasticity
Abstract: To address the problem of insufficient performance of styrene butadiene styrene (SBS)–modified emulsified asphalt in road maintenance, this study discusses the potential possibility of further modification of SBS-modified emulsified asphalt by nonionic waterborne polyurethane (NWPU). In this study, composite-modified emulsified asphalt (CMEA) was obtained by mixing NWPU and SBS-modified asphalt emulsions. The various performance of the asphalt was comprehensively evaluated by Fourier transform infrared (FTIR), fluorescence microscopy, temperature sweep, frequency sweep, linear amplitude sweep (LAS), multistress creep recovery (MSCR), and surface free energy tests. The results confirmed that there is an intermolecular interaction between NWPU and SBS polymer and showed that the addition of NWPU can improve the high-temperature rheological, adhesion, and fatigue performance of SBS-modified emulsified asphalt, but the hydrophilic groups introduced by NWPU also weaken the water stability of asphalt to a certain extent. When the NWPU content was 12% and 15%, the NWPU particles in the asphalt are agglomerated and cross-linked with SBS particles, which improved the viscoelastic mechanical response of the asphalt. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials in Civil Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 193068828
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Study on the Performance of Nonionic Waterborne Polyurethane and SBS Composite–Modified Emulsified Asphalt.
– Name: Author
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Ruiqi%22">Chen, Ruiqi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ruiqi@whut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Yixing%22">Chen, Yixing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 13100692919@163.com</i><br /><searchLink fieldCode="AR" term="%22Xu%2C+Wen%22">Xu, Wen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wenxu@whut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yu%2C+Xilan%22">Yu, Xilan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> wuyuanxilan@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Kai%22">Zhang, Kai</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> kaizhang@whut.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+in+Civil+Engineering%22">Journal of Materials in Civil Engineering</searchLink>. Jun2026, Vol. 38 Issue 6, p1-11. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Asphalt+emulsion+mixtures%22">Asphalt emulsion mixtures</searchLink><br /><searchLink fieldCode="DE" term="%22Polyurethanes%22">Polyurethanes</searchLink><br /><searchLink fieldCode="DE" term="%22Road+maintenance%22">Road maintenance</searchLink><br /><searchLink fieldCode="DE" term="%22Rheology%22">Rheology</searchLink><br /><searchLink fieldCode="DE" term="%22Viscoelasticity%22">Viscoelasticity</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: To address the problem of insufficient performance of styrene butadiene styrene (SBS)–modified emulsified asphalt in road maintenance, this study discusses the potential possibility of further modification of SBS-modified emulsified asphalt by nonionic waterborne polyurethane (NWPU). In this study, composite-modified emulsified asphalt (CMEA) was obtained by mixing NWPU and SBS-modified asphalt emulsions. The various performance of the asphalt was comprehensively evaluated by Fourier transform infrared (FTIR), fluorescence microscopy, temperature sweep, frequency sweep, linear amplitude sweep (LAS), multistress creep recovery (MSCR), and surface free energy tests. The results confirmed that there is an intermolecular interaction between NWPU and SBS polymer and showed that the addition of NWPU can improve the high-temperature rheological, adhesion, and fatigue performance of SBS-modified emulsified asphalt, but the hydrophilic groups introduced by NWPU also weaken the water stability of asphalt to a certain extent. When the NWPU content was 12% and 15%, the NWPU particles in the asphalt are agglomerated and cross-linked with SBS particles, which improved the viscoelastic mechanical response of the asphalt. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials in Civil Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1061/JMCEE7.MTENG-22134
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 1
    Subjects:
      – SubjectFull: Asphalt emulsion mixtures
        Type: general
      – SubjectFull: Polyurethanes
        Type: general
      – SubjectFull: Road maintenance
        Type: general
      – SubjectFull: Rheology
        Type: general
      – SubjectFull: Viscoelasticity
        Type: general
    Titles:
      – TitleFull: Study on the Performance of Nonionic Waterborne Polyurethane and SBS Composite–Modified Emulsified Asphalt.
        Type: main
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    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Chen, Ruiqi
      – PersonEntity:
          Name:
            NameFull: Chen, Yixing
      – PersonEntity:
          Name:
            NameFull: Xu, Wen
      – PersonEntity:
          Name:
            NameFull: Yu, Xilan
      – PersonEntity:
          Name:
            NameFull: Zhang, Kai
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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              Value: 08991561
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              Value: 38
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              Value: 6
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            – TitleFull: Journal of Materials in Civil Engineering
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