Investigation of the curing mechanism in the GPTS/APTS binder system

D. H. Kim; J. H. Moon; D. W. Lee; Y. G. Shul

doi:10.1023/A:1020785501907

Investigation of the curing mechanism in the GPTS/APTS binder system

D. H. Kim, J. H. Moon, D. W. Lee, Y. G. Shul

Department of Chemical and Biomolecular Engineering

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

7 Citations (Scopus)

Abstract

The acid catalyzed sol-gel reaction in the mixed binder system, 3-glycidoxypropyltrimethoxysilane (GPTS)/3-aminopropyltriethoxysilane (APTS) was investigated and one step and two step synthesis process were compared. Hydrolysis product was observed using the ¹H, ¹³C NMR and Raman spectra. Especially, based on the Raman spectra, epoxy ring opening was observed, varying the ratio of GPTS to APTS. The two step process made clear sol, while the one step process resulted in a milky suspension. According to the Raman spectra, the epoxy ring opening reaction kinetics proceeded slower in the two step process than one step process. Throughout the two step process, it was possible to apply the binder for the coating of substrate.

Original language	English
Pages (from-to)	403-406
Number of pages	4
Journal	Journal of Sol-Gel Science and Technology
Volume	26
Issue number	1-3
DOIs	https://doi.org/10.1023/A:1020785501907
Publication status	Published - 2003 Jan

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Biomaterials
Condensed Matter Physics
Materials Chemistry

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title = "Investigation of the curing mechanism in the GPTS/APTS binder system",

abstract = "The acid catalyzed sol-gel reaction in the mixed binder system, 3-glycidoxypropyltrimethoxysilane (GPTS)/3-aminopropyltriethoxysilane (APTS) was investigated and one step and two step synthesis process were compared. Hydrolysis product was observed using the 1H, 13C NMR and Raman spectra. Especially, based on the Raman spectra, epoxy ring opening was observed, varying the ratio of GPTS to APTS. The two step process made clear sol, while the one step process resulted in a milky suspension. According to the Raman spectra, the epoxy ring opening reaction kinetics proceeded slower in the two step process than one step process. Throughout the two step process, it was possible to apply the binder for the coating of substrate.",

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AU - Kim, D. H.

AU - Moon, J. H.

AU - Lee, D. W.

AU - Shul, Y. G.

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AB - The acid catalyzed sol-gel reaction in the mixed binder system, 3-glycidoxypropyltrimethoxysilane (GPTS)/3-aminopropyltriethoxysilane (APTS) was investigated and one step and two step synthesis process were compared. Hydrolysis product was observed using the 1H, 13C NMR and Raman spectra. Especially, based on the Raman spectra, epoxy ring opening was observed, varying the ratio of GPTS to APTS. The two step process made clear sol, while the one step process resulted in a milky suspension. According to the Raman spectra, the epoxy ring opening reaction kinetics proceeded slower in the two step process than one step process. Throughout the two step process, it was possible to apply the binder for the coating of substrate.

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Investigation of the curing mechanism in the GPTS/APTS binder system

Abstract

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