Formaldehyde-free Tannin foams (2011-2013)



Formaldehyde-free Tannin foams

Preparation of completely natural tannin-based rigid foams with external energy support (hot press and microwave). Complete replacement of formaldehyde and diethylether for the production of a porous materials obtained from wood extractives, chemical derivates from hydrolysis of the hemicellulose and fermentation of simple sugars.

M.Link, C.Kolbitsch, R. Lesacher

Tannin Foams

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