Wear, thermal, and physical properties of fluorine-containing polyimide/silica hybrid nanocomposite coatings

ÇAKIR M., AKIN E.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.136, sa.16, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 136 Sayı: 16
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1002/app.47399
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: fluorine-containing polyimide coatings, nanocomposite coatings, polyimide-silica hybrid coatings
  • Marmara Üniversitesi Adresli: Evet

Özet

This study prepared fluorine and SiO2 particles containing organic-inorganic hybrid polyimide nanocomposite coatings (PISFs) with inorganic content in the range of 5-20% in pure polyimide solutions via the sol-gel process. Polyimide hybrid structures containing fluorine and SiO2 particles were synthesized by using perfluorooctyltriethoxysilane and tetraethyl orthosilicate. These formulations were applied on aluminum sheets by using a 75 mu m wire wound applicator, and the coatings were cured for 8 h at room temperature and then 24 h at 100 degrees C. Increased inorganic contents caused slight decreases in the initial decomposition temperatures, but the char yield values increased for PISF15 and PISF20. All samples exhibited hydrophobic properties. When all samples were compared, PISF5 and PISF10 exhibited hydrophobicity, high wear resistance and thermal properties. Additionally, PISF5 and PISF10 showed high adhesion, hardness, and methyl ethyl ketone solvent resistance. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47399.