ゾル‐ゲル法によるエポキシ樹脂／チタニアハイブリッドの合成と物性
書誌事項
- タイトル別名
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- Preparation and Properties of Sol-Gel Derived Epoxy Resin/Titania Hybrids
説明
Epoxy resin/titania hybrids were prepared by a sol-gel process, and their properties and micro structure were investigated. A bisp henol A type epoxy resin (EP 1001) was mixed with a curing agent with alkoxysilyl groups, N - (2-aminoethyl) -3-aminopropyltrimethoxysilane (S320), and titanium n-butoxide (TnBU) in tetrahydrofuran. The mixture was extended onto a Petri dish, and after evaporation of solvent and heat treatment, transparent hybrid films were obtained. In the dynamic viscoelastic properties of EP 1001/S320 hybrid, a tan δ peak due to the glass transition (Tg) appeared at about 100°C. The peak of EP 1001/S320/TiO2, however, shifted to a lower temperature side, probably because methoxysilyl groups were blocked by titania converted from TnBU resulting in imperfect network structure. Tg of EP 1001/S320/ TiO2 hybrid was increased by heat treatment. Ultimate tensile strengths of the hybrids were also improved by heat treatment and increased with an increasing TiO2 content. In the small angle X-ray scattering (SAXS) profile of EP 1001/S320, a sharp peak appeared at a scattering vector q=2.4nm-1 due to the interference between the silica cross-links formed by the reaction of terminated methoxysilyl groups. Intensity of SAXS profile of the EP 1001/S320/TiO2 hybrid was increased on loading of TiO2 having high electron density, and a small peak at 2.4 nm-1 was observed. Guinier plots (q<0.2nm-1) of EP 1001/S320/Ti02 hybrids gave a radius of the cluster of about 10 nm which may be attributed to the TiO2 cluster dispersed in the DGEBA matrix.
収録刊行物
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- 高分子論文集
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高分子論文集 60 (9), 490-498, 2003
公益社団法人 高分子学会
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詳細情報 詳細情報について
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- CRID
- 1390282681498717184
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- NII論文ID
- 130004035640
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- ISSN
- 18815685
- 03862186
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
