Analyses of the mechanical, electrical and electromagnetic shielding properties of thermoplastic composites doped with conductive nanofillers

Ali Can Yilmaz, Mustafa Sabri Ozen, Erhan Sancak, Ramazan Erdem, Ozlem Erdem, Navneet Soin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The purpose of this study is to observe effect of incorporating vapor-grown carbon nanofibers with various amounts in polyvinylidene fluoride matrix in terms of mechanical strength and electromagnetic shielding effectiveness. Thermoplastic conductive nanocomposites were prepared by heat-pressed compression molding. Vapor-grown carbon nanofibers were utilized at various weight ratios (1 wt.%, 3 wt.%, 5 wt.%, and 8 wt.%) as conductive and reinforcing materials. Polyvinylidene fluoride was used as a thermoplastic polymer matrix. Scanning electron microscopic analysis was conducted in order to characterize the morphology and structural properties of the nanocomposites and results revealed well dispersion of carbon nanofibers within the matrix for all concentrations. Mechanical characteristics were investigated according to standards. Findings proved that overall increments of 16%, 37.5%, and 56% were achieved in terms of tensile strength, elasticity modulus, and impact energy, respectively, where a total reduction of 44.8% was observed in terms of elongation for 8 wt.% vapor-grown nanofiber matrix compared to that of 0 wt.%. Electromagnetic shielding effectivenesses of the nanocomposites were determined by standard protocol using coaxial transmission line measurement technique in the frequency range of 15–3000 MHz. It was observed that resistance, sheet resistance, and resistivity of nanocomposites depicted substantial reduction with the increment in nanofiber content. Nevertheless, it was observed that nanofiber content, dispersion, and network formation within the composites were highly influent on the electromagnetic shielding effectiveness performance of the structures.

LanguageEnglish
Pages1423-1432
Number of pages10
JournalJournal of Composite Materials
Volume52
Issue number11
Early online date10 Jan 2018
DOIs
Publication statusPublished - 1 May 2018

Fingerprint

Electromagnetic shielding
Thermoplastics
Carbon nanofibers
Nanocomposites
Nanofibers
Vapors
Composite materials
Compression molding
Sheet resistance
Polymer matrix
Strength of materials
Structural properties
Elongation
Elasticity
Electric lines
Tensile strength
Scanning
Electrons
polyvinylidene fluoride

Keywords

  • Carbon nanofiber
  • electromagnetic shielding effectiveness
  • mechanical properties
  • polymer composites

Cite this

Yilmaz, Ali Can ; Ozen, Mustafa Sabri ; Sancak, Erhan ; Erdem, Ramazan ; Erdem, Ozlem ; Soin, Navneet. / Analyses of the mechanical, electrical and electromagnetic shielding properties of thermoplastic composites doped with conductive nanofillers. In: Journal of Composite Materials. 2018 ; Vol. 52, No. 11. pp. 1423-1432.
@article{f49210439947419fa16dddd30195141e,
title = "Analyses of the mechanical, electrical and electromagnetic shielding properties of thermoplastic composites doped with conductive nanofillers",
abstract = "The purpose of this study is to observe effect of incorporating vapor-grown carbon nanofibers with various amounts in polyvinylidene fluoride matrix in terms of mechanical strength and electromagnetic shielding effectiveness. Thermoplastic conductive nanocomposites were prepared by heat-pressed compression molding. Vapor-grown carbon nanofibers were utilized at various weight ratios (1 wt.{\%}, 3 wt.{\%}, 5 wt.{\%}, and 8 wt.{\%}) as conductive and reinforcing materials. Polyvinylidene fluoride was used as a thermoplastic polymer matrix. Scanning electron microscopic analysis was conducted in order to characterize the morphology and structural properties of the nanocomposites and results revealed well dispersion of carbon nanofibers within the matrix for all concentrations. Mechanical characteristics were investigated according to standards. Findings proved that overall increments of 16{\%}, 37.5{\%}, and 56{\%} were achieved in terms of tensile strength, elasticity modulus, and impact energy, respectively, where a total reduction of 44.8{\%} was observed in terms of elongation for 8 wt.{\%} vapor-grown nanofiber matrix compared to that of 0 wt.{\%}. Electromagnetic shielding effectivenesses of the nanocomposites were determined by standard protocol using coaxial transmission line measurement technique in the frequency range of 15–3000 MHz. It was observed that resistance, sheet resistance, and resistivity of nanocomposites depicted substantial reduction with the increment in nanofiber content. Nevertheless, it was observed that nanofiber content, dispersion, and network formation within the composites were highly influent on the electromagnetic shielding effectiveness performance of the structures.",
keywords = "Carbon nanofiber, electromagnetic shielding effectiveness, mechanical properties, polymer composites",
author = "Yilmaz, {Ali Can} and Ozen, {Mustafa Sabri} and Erhan Sancak and Ramazan Erdem and Ozlem Erdem and Navneet Soin",
note = "Deposited in Uni of Bolton repository within REF OA deadline",
year = "2018",
month = "5",
day = "1",
doi = "10.1177/0021998317752503",
language = "English",
volume = "52",
pages = "1423--1432",
journal = "Journal of Composite Materials",
issn = "0021-9983",
number = "11",

}

Analyses of the mechanical, electrical and electromagnetic shielding properties of thermoplastic composites doped with conductive nanofillers. / Yilmaz, Ali Can; Ozen, Mustafa Sabri; Sancak, Erhan; Erdem, Ramazan; Erdem, Ozlem; Soin, Navneet.

In: Journal of Composite Materials, Vol. 52, No. 11, 01.05.2018, p. 1423-1432.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Analyses of the mechanical, electrical and electromagnetic shielding properties of thermoplastic composites doped with conductive nanofillers

AU - Yilmaz, Ali Can

AU - Ozen, Mustafa Sabri

AU - Sancak, Erhan

AU - Erdem, Ramazan

AU - Erdem, Ozlem

AU - Soin, Navneet

N1 - Deposited in Uni of Bolton repository within REF OA deadline

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The purpose of this study is to observe effect of incorporating vapor-grown carbon nanofibers with various amounts in polyvinylidene fluoride matrix in terms of mechanical strength and electromagnetic shielding effectiveness. Thermoplastic conductive nanocomposites were prepared by heat-pressed compression molding. Vapor-grown carbon nanofibers were utilized at various weight ratios (1 wt.%, 3 wt.%, 5 wt.%, and 8 wt.%) as conductive and reinforcing materials. Polyvinylidene fluoride was used as a thermoplastic polymer matrix. Scanning electron microscopic analysis was conducted in order to characterize the morphology and structural properties of the nanocomposites and results revealed well dispersion of carbon nanofibers within the matrix for all concentrations. Mechanical characteristics were investigated according to standards. Findings proved that overall increments of 16%, 37.5%, and 56% were achieved in terms of tensile strength, elasticity modulus, and impact energy, respectively, where a total reduction of 44.8% was observed in terms of elongation for 8 wt.% vapor-grown nanofiber matrix compared to that of 0 wt.%. Electromagnetic shielding effectivenesses of the nanocomposites were determined by standard protocol using coaxial transmission line measurement technique in the frequency range of 15–3000 MHz. It was observed that resistance, sheet resistance, and resistivity of nanocomposites depicted substantial reduction with the increment in nanofiber content. Nevertheless, it was observed that nanofiber content, dispersion, and network formation within the composites were highly influent on the electromagnetic shielding effectiveness performance of the structures.

AB - The purpose of this study is to observe effect of incorporating vapor-grown carbon nanofibers with various amounts in polyvinylidene fluoride matrix in terms of mechanical strength and electromagnetic shielding effectiveness. Thermoplastic conductive nanocomposites were prepared by heat-pressed compression molding. Vapor-grown carbon nanofibers were utilized at various weight ratios (1 wt.%, 3 wt.%, 5 wt.%, and 8 wt.%) as conductive and reinforcing materials. Polyvinylidene fluoride was used as a thermoplastic polymer matrix. Scanning electron microscopic analysis was conducted in order to characterize the morphology and structural properties of the nanocomposites and results revealed well dispersion of carbon nanofibers within the matrix for all concentrations. Mechanical characteristics were investigated according to standards. Findings proved that overall increments of 16%, 37.5%, and 56% were achieved in terms of tensile strength, elasticity modulus, and impact energy, respectively, where a total reduction of 44.8% was observed in terms of elongation for 8 wt.% vapor-grown nanofiber matrix compared to that of 0 wt.%. Electromagnetic shielding effectivenesses of the nanocomposites were determined by standard protocol using coaxial transmission line measurement technique in the frequency range of 15–3000 MHz. It was observed that resistance, sheet resistance, and resistivity of nanocomposites depicted substantial reduction with the increment in nanofiber content. Nevertheless, it was observed that nanofiber content, dispersion, and network formation within the composites were highly influent on the electromagnetic shielding effectiveness performance of the structures.

KW - Carbon nanofiber

KW - electromagnetic shielding effectiveness

KW - mechanical properties

KW - polymer composites

UR - http://www.scopus.com/inward/record.url?scp=85045238106&partnerID=8YFLogxK

U2 - 10.1177/0021998317752503

DO - 10.1177/0021998317752503

M3 - Article

VL - 52

SP - 1423

EP - 1432

JO - Journal of Composite Materials

T2 - Journal of Composite Materials

JF - Journal of Composite Materials

SN - 0021-9983

IS - 11

ER -