Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles

Yasushi Aburatani, Kanji Tsuru, Satoshi Hayakawa, Akiyoshi Osaka

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)195-198
Number of pages4
JournalMaterials Science and Engineering C
Volume20
Issue number1-2
DOIs
Publication statusPublished - May 31 2002

Fingerprint

Silicates
activity (biology)
Silicon Dioxide
Particles (particulate matter)
silicates
Silica
gels
mechanical properties
Polydimethylsiloxane
silicon dioxide
Mechanical properties
microstructure
Microstructure
calcium
Calcium
Gels
Apatites
body fluids
Particle interactions
soaking

Keywords

  • Apatite
  • Compressive strength
  • Dynamic mechanical analysis
  • Sol-gel

ASJC Scopus subject areas

  • Biomaterials

Cite this

Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles. / Aburatani, Yasushi; Tsuru, Kanji; Hayakawa, Satoshi; Osaka, Akiyoshi.

In: Materials Science and Engineering C, Vol. 20, No. 1-2, 31.05.2002, p. 195-198.

Research output: Contribution to journalArticle

Aburatani, Yasushi ; Tsuru, Kanji ; Hayakawa, Satoshi ; Osaka, Akiyoshi. / Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles. In: Materials Science and Engineering C. 2002 ; Vol. 20, No. 1-2. pp. 195-198.
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