Molded bodies comprising bond material based on cellulose acetate and reinforcing natural cellulose fibers, a process for the production and the use thereof

摘要

Described are molded bodies comprising bond material based on cellulose acetate as a bonding agent and reinforcing natural cellulose fibers or natural cellulose-containing fibers. These components are characterized by the fact that the cellulose acetate has a degree of substitution (DS) of approximately 1.2 to 2.7 and the molded bodies have a Vicat temperature of at least approximately 160 C. and the ratio of the weight of cellulose acetate to the natural cellulose fibers or natural cellulose-containing fibers is approximately 10:90-90:10. These molded bodies are produced by mixing cellulose acetate with the natural cellulose fibers or the natural cellulose-containing fibers in a ratio by weight of approximately 90:10-10:90, in particular 15:85-85:15, in the total moisture content is adjusted to at least approximately 3% by weight, with respect to the total amount of the cellulose acetate in the mixture, and this mixture is molded at a temperature of approximately 220. degree. to 280 C. and a pressure of approximately 30 to 150 bars. The molded bodies according to the invention can advantageously be used as interior parts of automobiles, in particular as roof ceiling and as side paneling, as well as packaging material, insulating material or as a furniture part.