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Effect of the addition of wood flours on the properties of rigid polyurethane foam

โœ Scribed by Jiang Yuan; Sheldon Q. Shi

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
493 KB
Volume
113
Category
Article
ISSN
0021-8995

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Immediately after heating rigid foam polyurethane (PU) at 165"C, it degrades in accordance with the degradation mechanisms suggested by Abu-&id et al. in earlier publications. However, after three days all photoacoustic spectra (PAS) bands indicative of PU degradation almost disappeared, and the sam