Novel analytical method of nanoparticle dispersibility in polymer nanocomposites; TEM-CT and 3D topological analysis

Hideshi Sasakura, Suguru Noda, Yukio Yamaguchi

Research output: Contribution to journalArticle

Abstract

We established a quantitative analytical method of nanoparticle dispersibility, which includes the following steps; 3D reconstructed image by TEM-CT, particle separation by 3D image analysis, and calculation of a dispersibility index. First the 3D image was reconstructed by a series of 121 projections collected along a single tilt axis on TEM. Second particles were separated from the reconstructed image by binarization. The distance between the gravity centers of particles was measured from the reconstructed images. Finally a dispersibility index was defined as the average of the shortest distances for adjacent nanoparticles divided by an ideal distance. The proposed method was applied for alumina nanoparticles in polymer nanocomposites under different synthetic processes, and the dispersibility of them was calculated by the index. The correlation between the dispersibility as a structure and the transmittance at 700 nm as a function was found to be linear. This method is applicable to evaluate the 3D dispersibility quantitatively for the nanoparticle arrays.

Original languageEnglish
Pages (from-to)638-642
Number of pages5
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume114
Issue number1331
DOIs
Publication statusPublished - 2006
Externally publishedYes

Fingerprint

Nanocomposites
nanocomposites
Polymers
Nanoparticles
Transmission electron microscopy
nanoparticles
transmission electron microscopy
polymers
center of gravity
Aluminum Oxide
image analysis
Image analysis
transmittance
Gravitation
Alumina
aluminum oxides
projection

Keywords

  • 3D image analysis
  • 3D reconstructed image
  • Dispersibility
  • Function
  • Nanocomposite
  • Nanoparticle
  • Process
  • Quantification
  • Structure
  • TEM-CT
  • Transmittance

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

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title = "Novel analytical method of nanoparticle dispersibility in polymer nanocomposites; TEM-CT and 3D topological analysis",
abstract = "We established a quantitative analytical method of nanoparticle dispersibility, which includes the following steps; 3D reconstructed image by TEM-CT, particle separation by 3D image analysis, and calculation of a dispersibility index. First the 3D image was reconstructed by a series of 121 projections collected along a single tilt axis on TEM. Second particles were separated from the reconstructed image by binarization. The distance between the gravity centers of particles was measured from the reconstructed images. Finally a dispersibility index was defined as the average of the shortest distances for adjacent nanoparticles divided by an ideal distance. The proposed method was applied for alumina nanoparticles in polymer nanocomposites under different synthetic processes, and the dispersibility of them was calculated by the index. The correlation between the dispersibility as a structure and the transmittance at 700 nm as a function was found to be linear. This method is applicable to evaluate the 3D dispersibility quantitatively for the nanoparticle arrays.",
keywords = "3D image analysis, 3D reconstructed image, Dispersibility, Function, Nanocomposite, Nanoparticle, Process, Quantification, Structure, TEM-CT, Transmittance",
author = "Hideshi Sasakura and Suguru Noda and Yukio Yamaguchi",
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TY - JOUR

T1 - Novel analytical method of nanoparticle dispersibility in polymer nanocomposites; TEM-CT and 3D topological analysis

AU - Sasakura, Hideshi

AU - Noda, Suguru

AU - Yamaguchi, Yukio

PY - 2006

Y1 - 2006

N2 - We established a quantitative analytical method of nanoparticle dispersibility, which includes the following steps; 3D reconstructed image by TEM-CT, particle separation by 3D image analysis, and calculation of a dispersibility index. First the 3D image was reconstructed by a series of 121 projections collected along a single tilt axis on TEM. Second particles were separated from the reconstructed image by binarization. The distance between the gravity centers of particles was measured from the reconstructed images. Finally a dispersibility index was defined as the average of the shortest distances for adjacent nanoparticles divided by an ideal distance. The proposed method was applied for alumina nanoparticles in polymer nanocomposites under different synthetic processes, and the dispersibility of them was calculated by the index. The correlation between the dispersibility as a structure and the transmittance at 700 nm as a function was found to be linear. This method is applicable to evaluate the 3D dispersibility quantitatively for the nanoparticle arrays.

AB - We established a quantitative analytical method of nanoparticle dispersibility, which includes the following steps; 3D reconstructed image by TEM-CT, particle separation by 3D image analysis, and calculation of a dispersibility index. First the 3D image was reconstructed by a series of 121 projections collected along a single tilt axis on TEM. Second particles were separated from the reconstructed image by binarization. The distance between the gravity centers of particles was measured from the reconstructed images. Finally a dispersibility index was defined as the average of the shortest distances for adjacent nanoparticles divided by an ideal distance. The proposed method was applied for alumina nanoparticles in polymer nanocomposites under different synthetic processes, and the dispersibility of them was calculated by the index. The correlation between the dispersibility as a structure and the transmittance at 700 nm as a function was found to be linear. This method is applicable to evaluate the 3D dispersibility quantitatively for the nanoparticle arrays.

KW - 3D image analysis

KW - 3D reconstructed image

KW - Dispersibility

KW - Function

KW - Nanocomposite

KW - Nanoparticle

KW - Process

KW - Quantification

KW - Structure

KW - TEM-CT

KW - Transmittance

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