E. Makarewicz, I. Shyychuk, H. Maciejewski, O. Shyichuk
A study on thermal stability of glycidylsiloxane resins cured with aliphatic amines (in English)
Polimery 2015, No 7-8, 448
Oligomeric glycidylsiloxanes are promising components of hybrid amino-epoxy-siloxane coatings with improved properties. The thermal stability of amine-cured glycidylsiloxane resins were studied by means of thermogravimetric analysis. Four samples of glycidylsiloxane resin, with 18 to 30 glycidyl groups per molecule and molar masses from 5 to 10.5 kg/mol, were cured at 140 °C with triethylenetetramine (TETA), isophorone diamine (IDA) and a polyamide (PF). The onset temperatures of degradation, residual masses and heat effects were measured. Maximal degradation rates were registered at temperatures above 400 °C. Infrared spectra of the residues indicate that the least stable bonds are Si-C, C-H and C-N. Asecond degradation step takes place above 700 °C resulting in disperse silica.
: glycidylsiloxane resins, curing, thermal oxidative destruction
- E. Makarewicz, I. Shyychuk, H. Maciejewski, O. Shyichuk (266.9 KB)
- A study on thermal stability of glycidylsiloxane resins cured with aliphatic amines (in English)