Thermal stability of aqueous polyurethanes depending on the applied catalysts

2006
Authors
Cakić, SuzanaNikolić, Goran

Lačnjevac, Časlav

Gligorić, Miladin
Stamenković, Jakov
Rajković, Miloš
Barać, Miroljub

Article (Published version)
Metadata
Show full item recordAbstract
The thermal stability of aqueous polyurethanes has been measured applying the thermogravimetric analysis. The aqueous polyurethanes (aqPUR) with catalysts of different selectivity have been studied by use of the dynamic method. To obtain degradations of 0.025, 0.05, and 0.10, employing the dynamic method, the heating rates of 0.5, 1, 2, 5, and 10 degrees C min(-1) have been used in the range of 30-500 degrees C. Using the more selective catalysts in the aqueous polyurethanes, the total resulting time of the decompositon has been on the increase at all degrees of the degradation and at the particular starting temperature. This paper shows that the dynamic method based on the thermogravimetric analysis can be used to assess the thermal stability of the aqueous polyurethanes using the catalysts of different selectivity.
Keywords:
aqueous polyurethanes / catalysts / thermal degradation / thermogravimetric analysisSource:
Sensors, 2006, 6, 11, 1697-1707Publisher:
- MDPI, BASEL
Funding / projects:
DOI: 10.3390/s6111697
ISSN: 1424-8220