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The Synergistic Effect of WS 2 and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions.

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Title: The Synergistic Effect of WS 2 and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions.
Authors: Lu, Gang1,2 (AUTHOR) chgshuai@163.com, Shuai, Changgeng1,2 (AUTHOR) liuyinsong1991@163.com, Liu, Yinsong1,2 (AUTHOR) huxy_nue@163.com, Yang, Xue1,2 (AUTHOR) ganglu2019@163.com, Hu, Xiaoyang1,2 (AUTHOR)
Source: Nanomaterials (2079-4991). Apr2022, Vol. 12 Issue 8, pN.PAG-N.PAG. 11p.
Subjects: Dry friction, Polyurethane elastomers, Tungsten alloys, Friction materials, Lubricating oils, Carbon nanotubes, Polyurethanes
Abstract: To adapt to the complex application of polyurethane bearings, it is feasible to improve the tribological performance of single polyurethane-based friction materials through the synergistic effect produced by multi-component-lubricating fillers. In this context, rather than using tungsten disulfide (WS2), which has demonstrated excellent self-lubricating performance as a lubricating oil additive, this paper proposes that WS2 and single-walled carbon nanotubes (SWNTs) can be designed for addition into a polyether 4,4′-diphenylmethane diisocyanate (MDI) polyurethane matrix as self-lubricating fillers so as to explore the synergistic effect of micro- and nano-lubricating fillers on the tribological performance of polyurethane matrix materials. Through a series of characterizations and tests, it was found that the dispersion of two-component-lubricating additives in a polyurethane matrix is improved when the ratio of WS2 to SWNTs is roughly 2:1. In this case, the tribological performance of polyurethane matrix composites is more satisfactory than at other ratios. In addition, compared with the blank sample, the tribological performance of the synergistically modified polyurethane composites under dry friction is more significantly improved with the increase in contact load, while there is no significant improvement under water lubrication. Aside from contributing to the idea of exploring the synergistic effect of WS2 and other micro or nanofillers, this method also opens up the possibility of practically applying WS2 in the field of friction. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) 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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  Label: Title
  Group: Ti
  Data: The Synergistic Effect of WS 2 and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Lu%2C+Gang%22">Lu, Gang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> chgshuai@163.com</i><br /><searchLink fieldCode="AR" term="%22Shuai%2C+Changgeng%22">Shuai, Changgeng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> liuyinsong1991@163.com</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Yinsong%22">Liu, Yinsong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> huxy_nue@163.com</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Xue%22">Yang, Xue</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> ganglu2019@163.com</i><br /><searchLink fieldCode="AR" term="%22Hu%2C+Xiaoyang%22">Hu, Xiaoyang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Apr2022, Vol. 12 Issue 8, pN.PAG-N.PAG. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Dry+friction%22">Dry friction</searchLink><br /><searchLink fieldCode="DE" term="%22Polyurethane+elastomers%22">Polyurethane elastomers</searchLink><br /><searchLink fieldCode="DE" term="%22Tungsten+alloys%22">Tungsten alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Friction+materials%22">Friction materials</searchLink><br /><searchLink fieldCode="DE" term="%22Lubricating+oils%22">Lubricating oils</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+nanotubes%22">Carbon nanotubes</searchLink><br /><searchLink fieldCode="DE" term="%22Polyurethanes%22">Polyurethanes</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: To adapt to the complex application of polyurethane bearings, it is feasible to improve the tribological performance of single polyurethane-based friction materials through the synergistic effect produced by multi-component-lubricating fillers. In this context, rather than using tungsten disulfide (WS2), which has demonstrated excellent self-lubricating performance as a lubricating oil additive, this paper proposes that WS2 and single-walled carbon nanotubes (SWNTs) can be designed for addition into a polyether 4,4′-diphenylmethane diisocyanate (MDI) polyurethane matrix as self-lubricating fillers so as to explore the synergistic effect of micro- and nano-lubricating fillers on the tribological performance of polyurethane matrix materials. Through a series of characterizations and tests, it was found that the dispersion of two-component-lubricating additives in a polyurethane matrix is improved when the ratio of WS2 to SWNTs is roughly 2:1. In this case, the tribological performance of polyurethane matrix composites is more satisfactory than at other ratios. In addition, compared with the blank sample, the tribological performance of the synergistically modified polyurethane composites under dry friction is more significantly improved with the increase in contact load, while there is no significant improvement under water lubrication. Aside from contributing to the idea of exploring the synergistic effect of WS2 and other micro or nanofillers, this method also opens up the possibility of practically applying WS2 in the field of friction. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) 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:
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    Identifiers:
      – Type: doi
        Value: 10.3390/nano12081267
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Dry friction
        Type: general
      – SubjectFull: Polyurethane elastomers
        Type: general
      – SubjectFull: Tungsten alloys
        Type: general
      – SubjectFull: Friction materials
        Type: general
      – SubjectFull: Lubricating oils
        Type: general
      – SubjectFull: Carbon nanotubes
        Type: general
      – SubjectFull: Polyurethanes
        Type: general
    Titles:
      – TitleFull: The Synergistic Effect of WS 2 and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions.
        Type: main
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          Name:
            NameFull: Lu, Gang
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            NameFull: Shuai, Changgeng
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            NameFull: Liu, Yinsong
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            NameFull: Yang, Xue
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            NameFull: Hu, Xiaoyang
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            – D: 15
              M: 04
              Text: Apr2022
              Type: published
              Y: 2022
          Identifiers:
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              Value: 20794991
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              Value: 12
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              Value: 8
          Titles:
            – TitleFull: Nanomaterials (2079-4991)
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