Use of lignin products derived from wood pulping as environmentally desirable additives of polypropylene films.

Th e blendin of poyoene with lignnrpratosbtind fro bypoucts of wood prehydrolysis and kraft pulping allows to prepare optically transparent fi lms (thickness 50–60 μm) with acceptable mechanical properties in the absence of commercial stabilizers. Th ey exhibit strength properties comparable with those of lignin-free PP fi lms. Th e lignin preparations in the concentration 1–2 wt % possess the ability to act as processing stabilizers. Th e...