Influence of PMSA-based polymer on the settling velocity of CNT in Aqueous Media

Naoyuki Nishimura; Shin Ichi Takeda; Takashi Teranishi; Hidetaka Hayashi; Naoto Saito; Akira Kishimoto

doi:10.2497/jjspm.63.861

Influence of PMSA-based polymer on the settling velocity of CNT in Aqueous Media

Naoyuki Nishimura, Shin Ichi Takeda, Takashi Teranishi, Hidetaka Hayashi, Naoto Saito, Akira Kishimoto

Research output: Contribution to journal › Article › peer-review

Abstract

The preparation of a stable suspension dispersing carbon nanotube (CNT) in aqueous media using polystyrene maleic acid (PSMA)-based polymer as surfactant was attempted to be subsequently used in the fabrication of high-performance ceramic matrix composites. Settling velocity under centrifugation analysis was experimentally evaluated as one of the stability criteria of the dispersion and pulsed nuclear magnetic resonance was used to evaluate the amount of adsorbed molecules. The settling velocity decreased considerably with the PSMA concentration up to the saturation at around 7 mass%, then further decreased gradually with PSMA. The former was thought to be based on the dissociation of CNT agglomerate and the latter would be attributed to the surfactant-induced network structure formed in the aqueous media.

Original language	English
Pages (from-to)	861-865
Number of pages	5
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	63
Issue number	10
DOIs	https://doi.org/10.2497/jjspm.63.861
Publication status	Published - Sept 2016

Keywords

Adsorption
Dispersion
Multi-Walled Carbon Nanotube
Orientation
Surfactant

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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abstract = "The preparation of a stable suspension dispersing carbon nanotube (CNT) in aqueous media using polystyrene maleic acid (PSMA)-based polymer as surfactant was attempted to be subsequently used in the fabrication of high-performance ceramic matrix composites. Settling velocity under centrifugation analysis was experimentally evaluated as one of the stability criteria of the dispersion and pulsed nuclear magnetic resonance was used to evaluate the amount of adsorbed molecules. The settling velocity decreased considerably with the PSMA concentration up to the saturation at around 7 mass%, then further decreased gradually with PSMA. The former was thought to be based on the dissociation of CNT agglomerate and the latter would be attributed to the surfactant-induced network structure formed in the aqueous media.",

keywords = "Adsorption, Dispersion, Multi-Walled Carbon Nanotube, Orientation, Surfactant",

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AU - Nishimura, Naoyuki

AU - Takeda, Shin Ichi

AU - Teranishi, Takashi

AU - Hayashi, Hidetaka

AU - Saito, Naoto

AU - Kishimoto, Akira

PY - 2016/9

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KW - Orientation

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Influence of PMSA-based polymer on the settling velocity of CNT in Aqueous Media

Abstract

Keywords

ASJC Scopus subject areas

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