A particular interfacial strategy in PVDF/OBC/MWCNT nanocomposites for high dielectric performance and electromagnetic interference shielding

Xiang Jun Zha; Jun Hong Pu; Li Feng Ma; Ting Li; Rui Ying Bao; Lu Bai; Zheng Ying Liu; Ming Bo Yang; Wei Yang

doi:10.1016/j.compositesa.2017.11.011

A particular interfacial strategy in PVDF/OBC/MWCNT nanocomposites for high dielectric performance and electromagnetic interference shielding

Xiang Jun Zha, Jun Hong Pu, Li Feng Ma, Ting Li, Rui Ying Bao, Lu Bai, Zheng Ying Liu, Ming Bo Yang, Wei Yang (Corresponding Author)

Research output: Journal article publication › Journal article › Academic research › peer-review

96 Citations (Scopus)

Abstract

Multi-walled carbon nanotubes (MWCNTs) were easily dispersed at the interface of polyvinylidene difluoride (PVDF) and ethylene-α-octene block copolymer (OBC) blend by melt compounding and the nanocomposites exhibited enhanced dielectric performance, electromagnetic interference shielding effectiveness (EMI SE) and balanced mechanical performance. Through the simple, efficient and scalable interfacial strategy to disperse MWCNTs at the interface of PVDF and OBC phases, the accumulation of charge carriers at the interfaces and strong interfacial polarization effect can be achieved. At low frequency, PVDF/OBC/MWNCT nanocomposite exhibits high dielectric permittivity (753.8) and low dielectric loss tangent (0.8), offering great potential in energy storage applications. Simultaneously, in X-band range, PVDF/OBC/MWNCT nanocomposite shows high EMI SE of around 34 dB which is higher than the industrial requirement when the content of MWCNTs is as low as 2.7 vol.%. This study provides possibilities to realize high-performance polymer nanocomposites via the particular interfacial structure through one-step melt processing.

Original language	English
Pages (from-to)	118-125
Number of pages	8
Journal	Composites Part A: Applied Science and Manufacturing
Volume	105
DOIs	https://doi.org/10.1016/j.compositesa.2017.11.011
Publication status	Published - Feb 2018
Externally published	Yes

Keywords

A. Polymer-matrix composites (PMCs)
B. Electrical properties
B. Mechanical properties

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials

More information

10.1016/j.compositesa.2017.11.011

Cite this

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title = "A particular interfacial strategy in PVDF/OBC/MWCNT nanocomposites for high dielectric performance and electromagnetic interference shielding",

abstract = "Multi-walled carbon nanotubes (MWCNTs) were easily dispersed at the interface of polyvinylidene difluoride (PVDF) and ethylene-α-octene block copolymer (OBC) blend by melt compounding and the nanocomposites exhibited enhanced dielectric performance, electromagnetic interference shielding effectiveness (EMI SE) and balanced mechanical performance. Through the simple, efficient and scalable interfacial strategy to disperse MWCNTs at the interface of PVDF and OBC phases, the accumulation of charge carriers at the interfaces and strong interfacial polarization effect can be achieved. At low frequency, PVDF/OBC/MWNCT nanocomposite exhibits high dielectric permittivity (753.8) and low dielectric loss tangent (0.8), offering great potential in energy storage applications. Simultaneously, in X-band range, PVDF/OBC/MWNCT nanocomposite shows high EMI SE of around 34 dB which is higher than the industrial requirement when the content of MWCNTs is as low as 2.7 vol.%. This study provides possibilities to realize high-performance polymer nanocomposites via the particular interfacial structure through one-step melt processing.",

keywords = "A. Polymer-matrix composites (PMCs), B. Electrical properties, B. Mechanical properties",

author = "Zha, {Xiang Jun} and Pu, {Jun Hong} and Ma, {Li Feng} and Ting Li and Bao, {Rui Ying} and Lu Bai and Liu, {Zheng Ying} and Yang, {Ming Bo} and Wei Yang",

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doi = "10.1016/j.compositesa.2017.11.011",

language = "English",

volume = "105",

pages = "118--125",

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A particular interfacial strategy in PVDF/OBC/MWCNT nanocomposites for high dielectric performance and electromagnetic interference shielding. / Zha, Xiang Jun; Pu, Jun Hong; Ma, Li Feng et al.
In: Composites Part A: Applied Science and Manufacturing, Vol. 105, 02.2018, p. 118-125.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - A particular interfacial strategy in PVDF/OBC/MWCNT nanocomposites for high dielectric performance and electromagnetic interference shielding

AU - Zha, Xiang Jun

AU - Pu, Jun Hong

AU - Ma, Li Feng

AU - Li, Ting

AU - Bao, Rui Ying

AU - Bai, Lu

AU - Liu, Zheng Ying

AU - Yang, Ming Bo

AU - Yang, Wei

PY - 2018/2

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AB - Multi-walled carbon nanotubes (MWCNTs) were easily dispersed at the interface of polyvinylidene difluoride (PVDF) and ethylene-α-octene block copolymer (OBC) blend by melt compounding and the nanocomposites exhibited enhanced dielectric performance, electromagnetic interference shielding effectiveness (EMI SE) and balanced mechanical performance. Through the simple, efficient and scalable interfacial strategy to disperse MWCNTs at the interface of PVDF and OBC phases, the accumulation of charge carriers at the interfaces and strong interfacial polarization effect can be achieved. At low frequency, PVDF/OBC/MWNCT nanocomposite exhibits high dielectric permittivity (753.8) and low dielectric loss tangent (0.8), offering great potential in energy storage applications. Simultaneously, in X-band range, PVDF/OBC/MWNCT nanocomposite shows high EMI SE of around 34 dB which is higher than the industrial requirement when the content of MWCNTs is as low as 2.7 vol.%. This study provides possibilities to realize high-performance polymer nanocomposites via the particular interfacial structure through one-step melt processing.

KW - A. Polymer-matrix composites (PMCs)

KW - B. Electrical properties

KW - B. Mechanical properties

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VL - 105

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JO - Composites Part A: Applied Science and Manufacturing

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ER -

A particular interfacial strategy in PVDF/OBC/MWCNT nanocomposites for high dielectric performance and electromagnetic interference shielding

Abstract

Keywords

ASJC Scopus subject areas

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