FIELD: chemistry.
SUBSTANCE: crude mixture for making heat-insulation articles contains, wt %: wood aggregate ground until passage through sieve N5 77.0-79.0; liquid phenol-formaldehyde resin 7.0-8.0; hydrolysed lignin 5.0-6.0; textile wastes 5.0-6.0; carboxymethyl cellulose 3.0-4.0. Articles are made by hot-pressing the mixture at pressure of 1.3-1.5 MPa and temperature of about 160°C.
EFFECT: obtaining articles with low content of a toxic component - phenol-formaldehyde resin.
1 tbl
Authors
Dates
2014-02-27—Published
2012-10-05—Filed