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An in situ strategy to produce high-performance composite thermal adhesives with excellent bonding, thermal transfer and adjustable electrical performance based on a designer hyperbranched epoxy copolymer.

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Title: An in situ strategy to produce high-performance composite thermal adhesives with excellent bonding, thermal transfer and adjustable electrical performance based on a designer hyperbranched epoxy copolymer.
Authors: Lan, Ruotong1,2 (AUTHOR), Song, Jinwei1,2 (AUTHOR), Wang, Yanbo1,2 (AUTHOR), Tao, Yanan1,2 (AUTHOR), Ye, Huijian1,2 (AUTHOR) huy19@zjut.edu.cn, An, Mingxing3 (AUTHOR), Yan, Weili2 (AUTHOR), Li, Yufei2 (AUTHOR), Zhang, Wenbin1,2 (AUTHOR), Li, Feng4 (AUTHOR), Xu, Lixin1,2 (AUTHOR) gcsxlx@zjut.edu.cn
Source: Polymer. Jun2024, Vol. 304, pN.PAG-N.PAG. 1p.
Subjects: Heat transfer, Boron nitride, Multiwalled carbon nanotubes, Epoxy resins, Glycidyl methacrylate, Adhesives
Abstract: Thermally conductive adhesives (TCAs) have attracted considerable attentions in recent years as they can simultaneously promote interfacial bonding and thermal transfer. So far, a lot of strategies have been explored for producing them. Among them, modifying adhesive resins with thermally conductive nanofillers is one of the most frequently reported methodologies, which often involves complicated process and tedious procedures. We herein report a facile strategy for producing TCAs via an in situ process with the assistance of a designer hyperbranched epoxy copolymer, HBPE@PGMA. This copolymer consists of a hyperbranched polyethylene (HBPE) core and multiple poly (glycidyl methacrylate) (PGMA) side chains, which can be synthesized under mild conditions by a two-step polymerization process. As a stabilizer, this copolymer is found to effectively promote the exfoliation of hexagonal boron nitride (h -BN), natural graphite or multi-walled carbon nanotubes (MWCNTs) in chloroform under sonication, rendering boron nitride nanosheets (BNNS), graphene and individually dispersed MWCNT, respectively. Meanwhile, some of the copolymer can be irreversibly adsorbed on the resultant nanofiller surface based on the noncovalent CH-π interactions. This makes them well dispersible in chloroform and allows us to obtain high-performance TCAs from their dispersions via in situ process directly using the copolymer as matrix. The resultant TCAs simultaneously exhibit excellent interfacial bonding, thermal transfer and adjustable electrical performance. This strategy paves a way for producing high-performance TCAs through in situ process with relatively simple process. [Display omitted] • Efficient exfoliation of thermally conductive nanofillers in common solvent. • Noncovalent but steady functionalization of nanofillers based on CH-π interactions. • Design, synthesis and application of hyperbranched epoxy copolymer. • Facile strategy for producing thermally conductive adhesives via in situ process. • Thermally conductive adhesives with excellent comprehensive performance. [ABSTRACT FROM AUTHOR]
Copyright of Polymer 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: 177421985
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: An in situ strategy to produce high-performance composite thermal adhesives with excellent bonding, thermal transfer and adjustable electrical performance based on a designer hyperbranched epoxy copolymer.
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  Data: <searchLink fieldCode="JN" term="%22Polymer%22">Polymer</searchLink>. Jun2024, Vol. 304, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Heat+transfer%22">Heat transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Boron+nitride%22">Boron nitride</searchLink><br /><searchLink fieldCode="DE" term="%22Multiwalled+carbon+nanotubes%22">Multiwalled carbon nanotubes</searchLink><br /><searchLink fieldCode="DE" term="%22Epoxy+resins%22">Epoxy resins</searchLink><br /><searchLink fieldCode="DE" term="%22Glycidyl+methacrylate%22">Glycidyl methacrylate</searchLink><br /><searchLink fieldCode="DE" term="%22Adhesives%22">Adhesives</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Thermally conductive adhesives (TCAs) have attracted considerable attentions in recent years as they can simultaneously promote interfacial bonding and thermal transfer. So far, a lot of strategies have been explored for producing them. Among them, modifying adhesive resins with thermally conductive nanofillers is one of the most frequently reported methodologies, which often involves complicated process and tedious procedures. We herein report a facile strategy for producing TCAs via an in situ process with the assistance of a designer hyperbranched epoxy copolymer, HBPE@PGMA. This copolymer consists of a hyperbranched polyethylene (HBPE) core and multiple poly (glycidyl methacrylate) (PGMA) side chains, which can be synthesized under mild conditions by a two-step polymerization process. As a stabilizer, this copolymer is found to effectively promote the exfoliation of hexagonal boron nitride (h -BN), natural graphite or multi-walled carbon nanotubes (MWCNTs) in chloroform under sonication, rendering boron nitride nanosheets (BNNS), graphene and individually dispersed MWCNT, respectively. Meanwhile, some of the copolymer can be irreversibly adsorbed on the resultant nanofiller surface based on the noncovalent CH-π interactions. This makes them well dispersible in chloroform and allows us to obtain high-performance TCAs from their dispersions via in situ process directly using the copolymer as matrix. The resultant TCAs simultaneously exhibit excellent interfacial bonding, thermal transfer and adjustable electrical performance. This strategy paves a way for producing high-performance TCAs through in situ process with relatively simple process. [Display omitted] • Efficient exfoliation of thermally conductive nanofillers in common solvent. • Noncovalent but steady functionalization of nanofillers based on CH-π interactions. • Design, synthesis and application of hyperbranched epoxy copolymer. • Facile strategy for producing thermally conductive adhesives via in situ process. • Thermally conductive adhesives with excellent comprehensive performance. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Polymer 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:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.polymer.2024.127159
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Heat transfer
        Type: general
      – SubjectFull: Boron nitride
        Type: general
      – SubjectFull: Multiwalled carbon nanotubes
        Type: general
      – SubjectFull: Epoxy resins
        Type: general
      – SubjectFull: Glycidyl methacrylate
        Type: general
      – SubjectFull: Adhesives
        Type: general
    Titles:
      – TitleFull: An in situ strategy to produce high-performance composite thermal adhesives with excellent bonding, thermal transfer and adjustable electrical performance based on a designer hyperbranched epoxy copolymer.
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            NameFull: Lan, Ruotong
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            NameFull: Song, Jinwei
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            – D: 03
              M: 06
              Text: Jun2024
              Type: published
              Y: 2024
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