熱加硫プレスによる微細構造転写超撥水ゴムシート

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タイトル別名
  • Superhydrophobic Microstructure Imprinted Rubber Sheet by Hot Vulcanization Press
  • ネツカリュウプレス ニ ヨル ビサイ コウゾウ テンシャ チョウハッスイ ゴムシート

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<p>There are a lot of functional surfaces in nature, for example, a superhydrophobic surface of lotus leaves. Although there have been various artificial superhydrophobic surfaces, those are difficult to use in daily purposes because those have been built on brittle, stiff and breakable materials. In this report, we have focused on durable hydrophobic material of a vulcanized rubber, and attempted to prepare durable superhydrophobic surfaces by forming micro-structures on rubber surfaces. The surface micro-structured silicon molds were prepared by common lithographical techniques. Unvulcanized rubber was put on the silicon molds, and then pressed and vulcanized at 180 °C for 10 min. After peeling off from the silicon mold, vulcanized rubber surfaces were observed by field emission scanning electron microscope. Water contact angles and sliding angles on the vulcanized rubber surfaces were analyzed with 1.5 µL purified water droplets. As the results, micro pincushion arrays were successfully formed on the surfaces of the vulcanized rubbers with quite small defect and those surfaces showed superhydrophobicity. Furthermore, the structure of the micro pincushion arrays was not damaged by multiple elongations. The sliding angles were decreased with increasing degree of stretching of superhydrophobic micro-structured rubbers.</p>

収録刊行物

  • 日本ゴム協会誌

    日本ゴム協会誌 90 (6), 277-282, 2017

    一般社団法人 日本ゴム協会

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