ISSN:
0021-8995
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Maschinenbau
,
Physik
Notizen:
The thermal stability characteristics of three rigid urethane foams prepared from various formulations, to give a wide range of molecular structure, were investigated by means of TGA, DTA, and long-term heat aging. Compressive strength values over a temperature range of -73°C to +232°C were also determined for these foams. Based on all tests performed, a toluene diisocyanate foam displayed the poorest thermal stability characteristics of the three foams studied. A combination toluene diisocyanate-polymethylene polyphenylisocyanate foam showed intermediate elevated temperature properties, whereas, a foam employing only polymethylene polyphenylisocyanate demonstrated the best over-all high temperature stability.
Zusätzliches Material:
6 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/app.1965.070091206