Heating effect on properties of organic-inorganic hybrids containing colloidal silica particles

Y. Aburatani, K. Tsuru, Satoshi Hayakawa, A. Osaka

Research output: Contribution to journalArticle

Abstract

The organic-inorganic hybrid gels were synthesized starting from poly (dimethylsiloxane)(PDMS), tetraethoxysilane (TEOS), colloidal silica and calcium nitrate (Ca(NO3)2·4H2O) through sol-gel processing. The effects of heating on the mechanical properties and microstructure of the synthesized samples were investigated. The compressive strength of the synthesized samples increased by heating. The dynamic mechanical analysis of the synthesized samples showed increase of storage modulus and decrease of the loss factor, tanδ. It was suggested that the mobility of PDMS chain was restricted with the increase of PDMS-silica interaction by heating.

Original languageEnglish
Pages (from-to)445-448
Number of pages4
JournalKey Engineering Materials
Volume218-220
Publication statusPublished - 2002

Fingerprint

Polydimethylsiloxane
Silicon Dioxide
Particles (particulate matter)
Silica
Heating
Dynamic mechanical analysis
Compressive strength
Sol-gels
Calcium
Nitrates
Gels
Elastic moduli
Mechanical properties
Microstructure
Polymers
Processing
baysilon

Keywords

  • Compressive strength
  • Dynamic mechanical property
  • Organic-inorganic hybrid

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

Heating effect on properties of organic-inorganic hybrids containing colloidal silica particles. / Aburatani, Y.; Tsuru, K.; Hayakawa, Satoshi; Osaka, A.

In: Key Engineering Materials, Vol. 218-220, 2002, p. 445-448.

Research output: Contribution to journalArticle

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AB - The organic-inorganic hybrid gels were synthesized starting from poly (dimethylsiloxane)(PDMS), tetraethoxysilane (TEOS), colloidal silica and calcium nitrate (Ca(NO3)2·4H2O) through sol-gel processing. The effects of heating on the mechanical properties and microstructure of the synthesized samples were investigated. The compressive strength of the synthesized samples increased by heating. The dynamic mechanical analysis of the synthesized samples showed increase of storage modulus and decrease of the loss factor, tanδ. It was suggested that the mobility of PDMS chain was restricted with the increase of PDMS-silica interaction by heating.

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