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Enhanced electromagnetic interference shielding and mechanical properties of foamed epoxy nanocomposites containing carbon nanofiber treated with silicone surfactant

Thermosetting epoxy (EP)‐based composites containing various carbon nanofiber (CNF) contents (0–5 wt %) were fabricated using high speed mechanical stirring and surfactant assisting method. Then EP/CNF composites were foamed through a supercritical CO (scCO) foaming method. The cellular morphology o... Full description

Journal Title: Journal of Applied Polymer Science 15 November 2018, Vol.135(43), pp.n/a-n/a
Main Author: Li, J.
Other Authors: Zhang, G. , Shang, Z. , Fan, X. , Zhang, H. , Zhou, L. , Shi, X.
Format: Electronic Article Electronic Article
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ID: ISSN: 0021-8995 ; E-ISSN: 1097-4628 ; DOI: 10.1002/app.46833
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recordid: wj10.1002/app.46833
title: Enhanced electromagnetic interference shielding and mechanical properties of foamed epoxy nanocomposites containing carbon nanofiber treated with silicone surfactant
format: Article
creator:
  • Li, J.
  • Zhang, G.
  • Shang, Z.
  • Fan, X.
  • Zhang, H.
  • Zhou, L.
  • Shi, X.
subjects:
  • Composites
  • Conducting Polymers
  • Foams
  • Functionalization Of Polymers
  • Porous Materials
ispartof: Journal of Applied Polymer Science, 15 November 2018, Vol.135(43), pp.n/a-n/a
description: Thermosetting epoxy (EP)‐based composites containing various carbon nanofiber (CNF) contents (0–5 wt %) were fabricated using high speed mechanical stirring and surfactant assisting method. Then EP/CNF composites were foamed through a supercritical CO (scCO) foaming method. The cellular morphology of the foamed EP/CNF nanocomposites has been analyzed by scanning electron microscopy (SEM), and the results demonstrated that the CNFs could be served as heterogeneous nucleating agent to increase nucleation sites in nanocomposites, leading to higher cell density and larger cell size. The influences of foaming on conductivity and electromagnetic interference (EMI) shielding effectiveness (SE) were investigated. Due to the introduction of microcellular structure, the conductivity was improved from 9.53 × 10 S/cm to 6.75 × 10 S/cm and the EMI SE was enhanced from 12.7 to 16.5 dB at the CNF content of 5 wt %. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. , , 46833.
language:
source:
identifier: ISSN: 0021-8995 ; E-ISSN: 1097-4628 ; DOI: 10.1002/app.46833
fulltext: fulltext
issn:
  • 0021-8995
  • 00218995
  • 1097-4628
  • 10974628
url: Link


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titleEnhanced electromagnetic interference shielding and mechanical properties of foamed epoxy nanocomposites containing carbon nanofiber treated with silicone surfactant
creatorLi, J. ; Zhang, G. ; Shang, Z. ; Fan, X. ; Zhang, H. ; Zhou, L. ; Shi, X.
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subjectComposites ; Conducting Polymers ; Foams ; Functionalization Of Polymers ; Porous Materials
descriptionThermosetting epoxy (EP)‐based composites containing various carbon nanofiber (CNF) contents (0–5 wt %) were fabricated using high speed mechanical stirring and surfactant assisting method. Then EP/CNF composites were foamed through a supercritical CO (scCO) foaming method. The cellular morphology of the foamed EP/CNF nanocomposites has been analyzed by scanning electron microscopy (SEM), and the results demonstrated that the CNFs could be served as heterogeneous nucleating agent to increase nucleation sites in nanocomposites, leading to higher cell density and larger cell size. The influences of foaming on conductivity and electromagnetic interference (EMI) shielding effectiveness (SE) were investigated. Due to the introduction of microcellular structure, the conductivity was improved from 9.53 × 10 S/cm to 6.75 × 10 S/cm and the EMI SE was enhanced from 12.7 to 16.5 dB at the CNF content of 5 wt %. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. , , 46833.
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titleEnhanced electromagnetic interference shielding and mechanical properties of foamed epoxy nanocomposites containing carbon nanofiber treated with silicone surfactant
descriptionThermosetting epoxy (EP)‐based composites containing various carbon nanofiber (CNF) contents (0–5 wt %) were fabricated using high speed mechanical stirring and surfactant assisting method. Then EP/CNF composites were foamed through a supercritical CO (scCO) foaming method. The cellular morphology of the foamed EP/CNF nanocomposites has been analyzed by scanning electron microscopy (SEM), and the results demonstrated that the CNFs could be served as heterogeneous nucleating agent to increase nucleation sites in nanocomposites, leading to higher cell density and larger cell size. The influences of foaming on conductivity and electromagnetic interference (EMI) shielding effectiveness (SE) were investigated. Due to the introduction of microcellular structure, the conductivity was improved from 9.53 × 10 S/cm to 6.75 × 10 S/cm and the EMI SE was enhanced from 12.7 to 16.5 dB at the CNF content of 5 wt %. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. , , 46833.
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abstractThermosetting epoxy (EP)‐based composites containing various carbon nanofiber (CNF) contents (0–5 wt %) were fabricated using high speed mechanical stirring and surfactant assisting method. Then EP/CNF composites were foamed through a supercritical CO (scCO) foaming method. The cellular morphology of the foamed EP/CNF nanocomposites has been analyzed by scanning electron microscopy (SEM), and the results demonstrated that the CNFs could be served as heterogeneous nucleating agent to increase nucleation sites in nanocomposites, leading to higher cell density and larger cell size. The influences of foaming on conductivity and electromagnetic interference (EMI) shielding effectiveness (SE) were investigated. Due to the introduction of microcellular structure, the conductivity was improved from 9.53 × 10 S/cm to 6.75 × 10 S/cm and the EMI SE was enhanced from 12.7 to 16.5 dB at the CNF content of 5 wt %. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. , , 46833.
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date2018-11-15