Rheology of SiO2/(Acrylic Polymer/Epoxy) Suspensions.III. Uniaxial Elongational Viscosity

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Author: UEMATSU, Hideyukiほか

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Publication date: 2010

Material Format: Digital

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Note (General)：: Uniaxial elongational viscosity of SiO2/(AP/EP) suspensions with various SiO2 volume fractions () in a blend of acrylic polymer (AP) and epoxy (EP) w...

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Material Type: 文書・図像類
Title: Rheology of SiO2/(Acrylic Polymer/Epoxy) Suspensions.III. Uniaxial Elongational Viscosity
Author/Editor: UEMATSU, Hideyuki
AOKI, Yuji
SUGIMOTO, Masataka
KOYAMA, Kiyohito
Author Heading: UEMATSU, Hideyuki
AOKI, Yuji
SUGIMOTO, Masataka
KOYAMA, Kiyohito
Publication Date: 2010
Publication Date (W3CDTF): 2010
Periodical title: Rheologica Acta
No. or year of volume/issue: 49
Volume: 49
Text Language Code: eng
Subject Heading: Uniaxial elongational viscosity
Strain hardening
Strain softening
Sol-gel transition
SiO2 suspension
Target Audience: 一般
Note (General): Uniaxial elongational viscosity of SiO2/(AP/EP) suspensions with various SiO2 volume fractions () in a blend of acrylic polymer (AP) and epoxy (EP) was investigated at various temperatures (T). The matrix polymer ((AP/EP) blend) contained 70 vol.% of EP. At   35 vol.% at T  80oC, where the suspensions were in sol state, strain hardening behavior was observed. This strain hardening of the suspensions is attributable to the elongational flow properties of (AP/EP) medium. At critical gel state ( = 35 vol.% and T = 100oC) and in gel state (  40 vol.%) the elongational viscosity exhibited the strain softening behavior. These results strongly suggest that the strain softening results from the strain-induced disruption of the network structure of the SiO2 particles therein.
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ