An organic-inorganic hybrid composite as a coating agent

Akihiro Kuroda, Pascal Joly, Naoki Shibata, Hikari Takeshige, Kouichi Asakura

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

An organic-inorganic hybrid composite for use as a coating agent was prepared by mixing linseed oil with hydrophobic octylsilyl titanium dioxide particles having an average diameter of 35 nm (OSI-TIO2-35) in volatile silicone. The weight ratio of linseed oil with OSI-TIO2-35 was varied from 2:8 to 8:2 and the mixture was spread on a glass plate by dragging an applicator across it. After storing in the oven at 60 °C for 2 days, the composite having the weight ratio of OSI-TIO2-35 with linseed oil at 8:2 exhibited very high water-repellent properties having a water contact angle of 148°. Variation of the water contact angle during storage at 60 °C was monitored. It decreased by 10° in the initial 8 h and then increased by 45° over the next 2 days. Composites containing silicone resin, TMSS BY11-018, instead of linseed oil were also prepared. The sample having a weight ratio of OSI-TIO2-35 with TMSS BY11-018 at 8:2 also exhibited very high water-repellent properties with a water contact angle of 152°. The highly hydrophobic surface thus prepared by the coating and drying of those organic-inorganic hybrid composites was easily transferred to highly hydrophilic surfaces by calcination at 500 °C for 3 h.

Original languageEnglish
Pages (from-to)549-553
Number of pages5
JournalJAOCS, Journal of the American Oil Chemists' Society
Volume85
Issue number6
DOIs
Publication statusPublished - 2008 Jun 1

Keywords

  • Calcination
  • Coating
  • Drying
  • Highly hydrophilic
  • Highly hydrophobic
  • Hydrophobic octylsilyl titanium dioxide particle
  • Linseed oil
  • Silicone resin
  • Water-repellent

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry

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