スーパーオムニフォビックな表面は,効果的な化学遮断を可能にします.
Shuaijun Pan1, Arun K Kota, Joseph M Mabry
1Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
Journal of the American Chemical Society
|December 26, 2012
まとめ
研究者は,ニュートン式と非ニュートン式の両方の液体に対して有効な超オムニフォビック表面を開発しました. これらの高度な表面は,堅固な化学シールドとして機能し,多種多様な有機および無機物質を排斥します.
科学分野:
- マテリアルサイエンス 材料科学
- 表面化学について
- 流体力学 流体力学とは
背景:
- スーパーオムニフォビックな表面は,ほとんどの液体を排斥し,高い接触角度と低いヒステレシスを示します.
- 既存のスーパーオムニフォビック表面は,非ニュートン流体に対する効果が限られていることが多い.
研究 の 目的:
- ニュートン式および非ニュートン式液体の幅広いスペクトルで超オムニフォビシティを実証する表面を作成します.
- 様々な種類の液体に対して効果的な化学シールドを開発する.
主な方法:
- 階層的,再侵入的なテクスチャを持つ表面の製造.
- 酸,塩基,溶媒,およびポリマー溶液を含む様々なニュートン式および非ニュートン式液体を使用して液体反射性をテストする.
主要な成果:
- 開発された表面は,さまざまな液体に対して,超オムニフォビシティ (>150°接触角度,低ヒステレス) を達成しました.
- ニュートン式液体 (酸,塩基,溶媒) と非ニュートン式液体 (粘弾性ポリマー溶液) に対する反射性が実証されています.
- 液体は簡単に転がり,反発し,最小限の固体-液体の粘着を示しています.
結論:
- 階層的な再入りのテクスチャーされた表面は,固体-液体の接触面積を効果的に減らす.
- これらの表面は,レオロジカルな性質に関係なく,多種多様な有機および無機液体に対する強力な化学的シールド機能を備えています.
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