THERMAL OXIDATIVE DEGRADATION KINETICS OF NANOCOMPOSITE ALKYD-MELAMINE FORMALDEHYDE RESIN CONTAINING MODIFIED SILICA

Bal A., Acar I., Guclu G.

INSTRUMENTATION SCIENCE & TECHNOLOGY, cilt.42, sa.3, ss.345-356, 2014 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 42 Sayı: 3
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/10739149.2013.867504
  • Dergi Adı: INSTRUMENTATION SCIENCE & TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.345-356
  • Anahtar Kelimeler: activation energy, thermogravimetric analysis, nanocomposite alkyd-melamine formaldehyde resin, thermal oxidative degradation kinetics, THERMOOXIDATIVE DEGRADATION, EMULSION POLYMERIZATION, WATERBORNE COATINGS, FILM PROPERTIES, ORGANO CLAY, POLYPROPYLENE, POLYETHYLENE, BEHAVIORS, PARTICLES, POLYIMIDE
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Hayır

Özet

Thermal oxidative degradation kinetics of a nanocomposite alkyd-melamine formaldehyde resin containing surface-modified silica were investigated by thermogravimetric analysis. For this goal, the surface of the silica nanoparticles was modified with glycidoxypropyl trimethoxysilane. Afterwards, a nanocomposite alkyd-melamine formaldehyde resin containing 3% (wt.) ratio of surface modified silica was prepared by an in situ polymerization method. The degradation kinetics of this resin were investigated using different methods. The activation energies of different mechanism models were determined by the Coats-Redfern method. It was concluded that the actual reaction mechanism obeyed three-dimensional diffusion compared with the values obtained from the Kissinger and Flynn-Wall-Ozawa methods.