Enhancement of dispersion of silica modified with a silane coupling agent in a rubber composite

Gyu Min Lee, Jung Whan Yoo, Ki Bong Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Silica has been modified with decyltrimethoxysilane at various temperatures to improve the dispersion of the silica particles in a silica-rubber composite. The modified silica samples are characterized by FT-IR and 29Si CP/MAS NMR. With increasing treatment temperature, the chemical reaction between the silanol group of silica and the methoxy group of decyltrimethoxysilane is facilitated and the silica samples demonstrate very low water vapor adsorption capacities and good hydrophobicity compared to silica. The SBR rubber composite containing thermally modified silica shows improved silica particle dispersion. However, when physically mixed silica is used, the silica is mainly located on the surface and agglomerated.

Original languageEnglish
Pages (from-to)159-164
Number of pages6
JournalJournal of Chemical Engineering of Japan
Volume47
Issue number2
DOIs
Publication statusPublished - 2014 Feb 26

Keywords

  • Dispersion capacity
  • Hydrophobicity
  • Modification
  • Silane coupling agent
  • Silica

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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