Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles

Yasushi Aburatani; Kanji Tsuru; Satoshi Hayakawa; Akiyoshi Osaka

doi:10.1016/S0928-4931(02)00032-2

Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles

Yasushi Aburatani, Kanji Tsuru, Satoshi Hayakawa, Akiyoshi Osaka

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

11 Citations (Scopus)

Abstract

We synthesized organically modified silicate (ORMOSILs) gels with colloidal silica (CS) (AEROSIL®) starting from polydimethylsiloxane (PDMS), tetraethoxysilane (TEOS) and calcium nitrate (Ca(NO₃)₂·4H₂O) through sol-gel processing. Dynamic mechanical analysis indicated that relative height of the tanδ peak at about - 100 °C increased with an increase in the relative content of the inorganic components. This peak growth was accounted for by the relative increase in PDMS-colloidal silica particle interactions. The colloidal silica could control the mechanical behavior of the hybrids. The gel of a specific composition could deposit apatite within 3 days of soaking in the simulated body fluid (SBF), since it included many calcium ions on the surface.

Original language	English
Pages (from-to)	195-198
Number of pages	4
Journal	Materials Science and Engineering C
Volume	20
Issue number	1-2
DOIs	https://doi.org/10.1016/S0928-4931(02)00032-2
Publication status	Published - May 31 2002

Keywords

Apatite
Compressive strength
Dynamic mechanical analysis
Sol-gel

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/S0928-4931(02)00032-2

Cite this

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title = "Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles",

abstract = "We synthesized organically modified silicate (ORMOSILs) gels with colloidal silica (CS) (AEROSIL{\textregistered}) starting from polydimethylsiloxane (PDMS), tetraethoxysilane (TEOS) and calcium nitrate (Ca(NO3)2·4H2O) through sol-gel processing. Dynamic mechanical analysis indicated that relative height of the tanδ peak at about - 100 °C increased with an increase in the relative content of the inorganic components. This peak growth was accounted for by the relative increase in PDMS-colloidal silica particle interactions. The colloidal silica could control the mechanical behavior of the hybrids. The gel of a specific composition could deposit apatite within 3 days of soaking in the simulated body fluid (SBF), since it included many calcium ions on the surface.",

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T1 - Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles

AU - Aburatani, Yasushi

AU - Tsuru, Kanji

AU - Hayakawa, Satoshi

AU - Osaka, Akiyoshi

PY - 2002/5/31

Y1 - 2002/5/31

N2 - We synthesized organically modified silicate (ORMOSILs) gels with colloidal silica (CS) (AEROSIL®) starting from polydimethylsiloxane (PDMS), tetraethoxysilane (TEOS) and calcium nitrate (Ca(NO3)2·4H2O) through sol-gel processing. Dynamic mechanical analysis indicated that relative height of the tanδ peak at about - 100 °C increased with an increase in the relative content of the inorganic components. This peak growth was accounted for by the relative increase in PDMS-colloidal silica particle interactions. The colloidal silica could control the mechanical behavior of the hybrids. The gel of a specific composition could deposit apatite within 3 days of soaking in the simulated body fluid (SBF), since it included many calcium ions on the surface.

AB - We synthesized organically modified silicate (ORMOSILs) gels with colloidal silica (CS) (AEROSIL®) starting from polydimethylsiloxane (PDMS), tetraethoxysilane (TEOS) and calcium nitrate (Ca(NO3)2·4H2O) through sol-gel processing. Dynamic mechanical analysis indicated that relative height of the tanδ peak at about - 100 °C increased with an increase in the relative content of the inorganic components. This peak growth was accounted for by the relative increase in PDMS-colloidal silica particle interactions. The colloidal silica could control the mechanical behavior of the hybrids. The gel of a specific composition could deposit apatite within 3 days of soaking in the simulated body fluid (SBF), since it included many calcium ions on the surface.

KW - Apatite

KW - Compressive strength

KW - Dynamic mechanical analysis

KW - Sol-gel

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JO - Materials Science and Engineering C

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Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles

Abstract

Keywords

ASJC Scopus subject areas

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