| abstract |
Applicable material to obtain filmsnbiodegradable for bags by extrusion and blowing, and method ofnpreparation of the same that focuses on the formulation and processing ofnbioplastics from reactive starches, polyalcoholsnreagents and reactive cellulosic derivatives that, byncoextrusion-blown with biodegradable polyesters,nmay lead to films for biodegradable bags. To do this, itnmix, in different stages: a) functionalized starch with groupsnisocyanates in terminal hydroxyls and polyalcoholic chainsnequally functionalized; b) blend of polyester and derivative ofnterminal functionalized cellulose; and finally c)nExtruded and blown the previously obtained mixtures. |