Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles
We synthesized organically modified silicate (ORMOSILs) gels with colloidal silica (CS) (AEROSIL®) starting from polydimethylsiloxane (PDMS), tetraethoxysilane (TEOS) and calcium nitrate (Ca(NO 3) 2·4H 2O) through sol–gel processing. Dynamic mechanical analysis indicated that relative height of the...
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Published in | Materials Science & Engineering C Vol. 20; no. 1; pp. 195 - 198 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
31.05.2002
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Subjects | |
Online Access | Get full text |
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Summary: | We synthesized organically modified silicate (ORMOSILs) gels with colloidal silica (CS) (AEROSIL®) starting from polydimethylsiloxane (PDMS), tetraethoxysilane (TEOS) and calcium nitrate (Ca(NO
3)
2·4H
2O) through sol–gel processing. Dynamic mechanical analysis indicated that relative height of the tan
δ 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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ISSN: | 0928-4931 1873-0191 |
DOI: | 10.1016/S0928-4931(02)00032-2 |