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COMPUTATIONAL INVESTIGATION OF THE EFFECTS OF SPHERICAL FILLER MORPHOLOGY AND LOADING ON DIFFUSION TORTUOSITY AND RUBBER PERMEABILITY.

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Title: COMPUTATIONAL INVESTIGATION OF THE EFFECTS OF SPHERICAL FILLER MORPHOLOGY AND LOADING ON DIFFUSION TORTUOSITY AND RUBBER PERMEABILITY.
Authors: GRUBER, T. C.1 tyler.gruber@adityabirla.com, CROSSLEY, S. D.1, SMITH, A. P.1
Source: Rubber Chemistry & Technology. Apr-Jun2013, Vol. 86 Issue 2, p175-189. 15p.
Subjects: Filler materials, Mechanical loads, Artificial rubber, Diffusion, Tortuosity, Random walks, Matrices (Mathematics)
Abstract: Inflation pressure loss in tires degrades performance, raises rolling resistance, and reduces fuel economy. The incorporation of solid fillers, such as carbon black, at relatively high loadings in tire innerliners helps minimize these pressure losses by reducing innerliner permeability due to increases in average gas molecule diffusion path lengths (tortuosity), as well as reductions in diffusion pathway density (capacity). The effects of filler morphology and loading on diffusion path tortuosity can be explored by modeling biased random-walk diffusion through impermeable sphere-filled matrices. Modeled diffusion rate was found to decrease with increased filler loading, reduced filler sphere sizes, increased random-walk step sizes, and the aggregation of filler spheres. Initial correlations with limited empirical permeability measurements are used to validate the model approach. [ABSTRACT FROM AUTHOR]
Copyright of Rubber Chemistry & Technology is the property of American Chemical Society 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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  Data: <searchLink fieldCode="JN" term="%22Rubber+Chemistry+%26+Technology%22">Rubber Chemistry & Technology</searchLink>. Apr-Jun2013, Vol. 86 Issue 2, p175-189. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Filler+materials%22">Filler materials</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+loads%22">Mechanical loads</searchLink><br /><searchLink fieldCode="DE" term="%22Artificial+rubber%22">Artificial rubber</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion%22">Diffusion</searchLink><br /><searchLink fieldCode="DE" term="%22Tortuosity%22">Tortuosity</searchLink><br /><searchLink fieldCode="DE" term="%22Random+walks%22">Random walks</searchLink><br /><searchLink fieldCode="DE" term="%22Matrices+%28Mathematics%29%22">Matrices (Mathematics)</searchLink>
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  Data: Inflation pressure loss in tires degrades performance, raises rolling resistance, and reduces fuel economy. The incorporation of solid fillers, such as carbon black, at relatively high loadings in tire innerliners helps minimize these pressure losses by reducing innerliner permeability due to increases in average gas molecule diffusion path lengths (tortuosity), as well as reductions in diffusion pathway density (capacity). The effects of filler morphology and loading on diffusion path tortuosity can be explored by modeling biased random-walk diffusion through impermeable sphere-filled matrices. Modeled diffusion rate was found to decrease with increased filler loading, reduced filler sphere sizes, increased random-walk step sizes, and the aggregation of filler spheres. Initial correlations with limited empirical permeability measurements are used to validate the model approach. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Rubber Chemistry & Technology is the property of American Chemical Society 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=88421080
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      – Type: doi
        Value: 10.5254/rct.13.88932
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 15
        StartPage: 175
    Subjects:
      – SubjectFull: Filler materials
        Type: general
      – SubjectFull: Mechanical loads
        Type: general
      – SubjectFull: Artificial rubber
        Type: general
      – SubjectFull: Diffusion
        Type: general
      – SubjectFull: Tortuosity
        Type: general
      – SubjectFull: Random walks
        Type: general
      – SubjectFull: Matrices (Mathematics)
        Type: general
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      – TitleFull: COMPUTATIONAL INVESTIGATION OF THE EFFECTS OF SPHERICAL FILLER MORPHOLOGY AND LOADING ON DIFFUSION TORTUOSITY AND RUBBER PERMEABILITY.
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              Text: Apr-Jun2013
              Type: published
              Y: 2013
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