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Nanomaterial Composite Compatibilized Rubber–Plastic Elastomer–Asphalt Interface Mechanism and Performance Evaluation.

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Title: Nanomaterial Composite Compatibilized Rubber–Plastic Elastomer–Asphalt Interface Mechanism and Performance Evaluation.
Authors: Xie, Tangxin1 (AUTHOR), He, Zhongming1,2 (AUTHOR), Li, Jue1,2,3 (AUTHOR) lijue1207@126.com, Huang, Chao1,3 (AUTHOR), Wang, Pengxu1,2 (AUTHOR), Zhao, Qiao1,3 (AUTHOR)
Source: Materials (1996-1944). May2026, Vol. 19 Issue 9, p1857. 18p.
Subjects: Asphalt modifiers, Interface dynamics, Heat storage, Thermoplastic elastomers, Plastic scrap, Nanocomposite materials, Titanium dioxide nanoparticles
Abstract: Conventional rubber–plastic modified asphalt often suffers from poor compatibility and thermal storage stability, which limits its engineering application. To address this issue, this study proposes a prefabricated nano-reinforced rubber–plastic thermoplastic elastomer (TPE) modification strategy. The specific objective was to comparatively investigate how different waste plastic matrices (HDPE, LDPE, and PP) and two representative nano-oxides (ZnO and TiO2) affect the interfacial evolution, storage stability, rutting resistance, fatigue durability, and low-temperature cracking resistance of modified asphalt. The prefabricated nano-reinforced TPE modifier was incorporated into the base asphalt, and its storage stability, interface evolution and multi-scale rheological properties were evaluated. The results show that all modified binders exhibited good thermal storage stability, with softening point differences below 2.5 °C. The enhancement mechanism was mainly governed by physical blending, swelling adsorption, and interfacial synergistic interactions rather than the formation of new chemical functional groups. A clear synergistic matching relationship between plastic type and nanoparticle type was identified. LDPE-based systems showed better phase compatibility and fatigue/low-temperature performance, whereas HDPE-based systems were more favorable with respect to improvement of high-temperature rutting resistance. In addition, ZnO contributed more significantly to storage stability, rutting resistance, and fatigue resistance, while TiO2 was more beneficial for low-temperature crack resistance. These findings provide new insight into the interfacial design of nano-reinforced rubber–plastic modified asphalt and offer guidance for performance-oriented and sustainable pavement materials. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) is the property of MDPI 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.)
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DbLabel: Engineering Source
An: 193715663
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PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Nanomaterial Composite Compatibilized Rubber–Plastic Elastomer–Asphalt Interface Mechanism and Performance Evaluation.
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  Data: <searchLink fieldCode="AR" term="%22Xie%2C+Tangxin%22">Xie, Tangxin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Zhongming%22">He, Zhongming</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Jue%22">Li, Jue</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> lijue1207@126.com</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Chao%22">Huang, Chao</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Pengxu%22">Wang, Pengxu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Qiao%22">Zhao, Qiao</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. May2026, Vol. 19 Issue 9, p1857. 18p.
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  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Asphalt+modifiers%22">Asphalt modifiers</searchLink><br /><searchLink fieldCode="DE" term="%22Interface+dynamics%22">Interface dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+storage%22">Heat storage</searchLink><br /><searchLink fieldCode="DE" term="%22Thermoplastic+elastomers%22">Thermoplastic elastomers</searchLink><br /><searchLink fieldCode="DE" term="%22Plastic+scrap%22">Plastic scrap</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+dioxide+nanoparticles%22">Titanium dioxide nanoparticles</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Conventional rubber–plastic modified asphalt often suffers from poor compatibility and thermal storage stability, which limits its engineering application. To address this issue, this study proposes a prefabricated nano-reinforced rubber–plastic thermoplastic elastomer (TPE) modification strategy. The specific objective was to comparatively investigate how different waste plastic matrices (HDPE, LDPE, and PP) and two representative nano-oxides (ZnO and TiO2) affect the interfacial evolution, storage stability, rutting resistance, fatigue durability, and low-temperature cracking resistance of modified asphalt. The prefabricated nano-reinforced TPE modifier was incorporated into the base asphalt, and its storage stability, interface evolution and multi-scale rheological properties were evaluated. The results show that all modified binders exhibited good thermal storage stability, with softening point differences below 2.5 °C. The enhancement mechanism was mainly governed by physical blending, swelling adsorption, and interfacial synergistic interactions rather than the formation of new chemical functional groups. A clear synergistic matching relationship between plastic type and nanoparticle type was identified. LDPE-based systems showed better phase compatibility and fatigue/low-temperature performance, whereas HDPE-based systems were more favorable with respect to improvement of high-temperature rutting resistance. In addition, ZnO contributed more significantly to storage stability, rutting resistance, and fatigue resistance, while TiO2 was more beneficial for low-temperature crack resistance. These findings provide new insight into the interfacial design of nano-reinforced rubber–plastic modified asphalt and offer guidance for performance-oriented and sustainable pavement materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) is the property of MDPI 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: 10.3390/ma19091857
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 18
        StartPage: 1857
    Subjects:
      – SubjectFull: Asphalt modifiers
        Type: general
      – SubjectFull: Interface dynamics
        Type: general
      – SubjectFull: Heat storage
        Type: general
      – SubjectFull: Thermoplastic elastomers
        Type: general
      – SubjectFull: Plastic scrap
        Type: general
      – SubjectFull: Nanocomposite materials
        Type: general
      – SubjectFull: Titanium dioxide nanoparticles
        Type: general
    Titles:
      – TitleFull: Nanomaterial Composite Compatibilized Rubber–Plastic Elastomer–Asphalt Interface Mechanism and Performance Evaluation.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Xie, Tangxin
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          Name:
            NameFull: He, Zhongming
      – PersonEntity:
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            NameFull: Li, Jue
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            NameFull: Huang, Chao
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            NameFull: Wang, Pengxu
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          Dates:
            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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            – Type: issn-print
              Value: 19961944
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              Value: 19
            – Type: issue
              Value: 9
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            – TitleFull: Materials (1996-1944)
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