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Comparison of oil resistance and adhesion durability between polysulfide sealant and polyurethane sealant.

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Title: Comparison of oil resistance and adhesion durability between polysulfide sealant and polyurethane sealant.
Authors: Lee, Donghyeon1 (AUTHOR), Kim, Jong-Hyun2 (AUTHOR), Yang, Seong Baek2 (AUTHOR), Kwon, Dong-Jun1,2 (AUTHOR) djkwon@gnu.ac.kr
Source: Journal of Industrial & Engineering Chemistry. May2026, Vol. 157, p93-103. 11p.
Subjects: Polyurethane elastomers, Polysulfides, Fractography, Tensile strength, Thermal properties, Chemical resistance
Abstract: [Display omitted] Sealants are widely used in structural applications requiring mechanical strength and environmental resistance. This study compares the thermal, mechanical, and oil resistance properties of polyurethane (PU) and polysulfide (PSF) sealants. PU exhibits high tensile strength and adhesion due to strong hydrogen bonding, while PSF shows higher elongation but poor adhesion. Fractographic analysis reveals brittle failure in PU and ductile features in PSF. Upon kerosene immersion, PU undergoes severe swelling and a drastic reduction in lap shear strength (84.6 %), whereas PSF shows minor surface adsorption and lower degradation (22.3 %). PSF offers excellent oil resistance, its limited adhesion restricts structural use. PU shows superior mechanical performance but poor oil resistance. PU sealants require modification through crosslinking, incorporation of hydrophobic additives, or surface treatment to overcome this trade-off. These results highlight the need for a hybrid approach that combines mechanical advantages of PU with chemical resistance of PSF for high-performance sealants in harsh environments. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Industrial & Engineering Chemistry is the property of Elsevier B.V. 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: 192665893
AccessLevel: 6
PubType: Periodical
PubTypeId: serialPeriodical
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Comparison of oil resistance and adhesion durability between polysulfide sealant and polyurethane sealant.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Donghyeon%22">Lee, Donghyeon</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Jong-Hyun%22">Kim, Jong-Hyun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Seong+Baek%22">Yang, Seong Baek</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kwon%2C+Dong-Jun%22">Kwon, Dong-Jun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> djkwon@gnu.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Industrial+%26+Engineering+Chemistry%22">Journal of Industrial & Engineering Chemistry</searchLink>. May2026, Vol. 157, p93-103. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Polyurethane+elastomers%22">Polyurethane elastomers</searchLink><br /><searchLink fieldCode="DE" term="%22Polysulfides%22">Polysulfides</searchLink><br /><searchLink fieldCode="DE" term="%22Fractography%22">Fractography</searchLink><br /><searchLink fieldCode="DE" term="%22Tensile+strength%22">Tensile strength</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+properties%22">Thermal properties</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+resistance%22">Chemical resistance</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: [Display omitted] Sealants are widely used in structural applications requiring mechanical strength and environmental resistance. This study compares the thermal, mechanical, and oil resistance properties of polyurethane (PU) and polysulfide (PSF) sealants. PU exhibits high tensile strength and adhesion due to strong hydrogen bonding, while PSF shows higher elongation but poor adhesion. Fractographic analysis reveals brittle failure in PU and ductile features in PSF. Upon kerosene immersion, PU undergoes severe swelling and a drastic reduction in lap shear strength (84.6 %), whereas PSF shows minor surface adsorption and lower degradation (22.3 %). PSF offers excellent oil resistance, its limited adhesion restricts structural use. PU shows superior mechanical performance but poor oil resistance. PU sealants require modification through crosslinking, incorporation of hydrophobic additives, or surface treatment to overcome this trade-off. These results highlight the need for a hybrid approach that combines mechanical advantages of PU with chemical resistance of PSF for high-performance sealants in harsh environments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Industrial & Engineering Chemistry is the property of Elsevier B.V. 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: 10.1016/j.jiec.2025.09.041
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 93
    Subjects:
      – SubjectFull: Polyurethane elastomers
        Type: general
      – SubjectFull: Polysulfides
        Type: general
      – SubjectFull: Fractography
        Type: general
      – SubjectFull: Tensile strength
        Type: general
      – SubjectFull: Thermal properties
        Type: general
      – SubjectFull: Chemical resistance
        Type: general
    Titles:
      – TitleFull: Comparison of oil resistance and adhesion durability between polysulfide sealant and polyurethane sealant.
        Type: main
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          Name:
            NameFull: Lee, Donghyeon
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            NameFull: Kim, Jong-Hyun
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            NameFull: Yang, Seong Baek
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            NameFull: Kwon, Dong-Jun
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          Dates:
            – D: 25
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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            – Type: issn-print
              Value: 1226086X
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              Value: 157
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            – TitleFull: Journal of Industrial & Engineering Chemistry
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