EFFECT OF PHENOLIC RESIN ON PROCESSING AND MECHANICAL-PROPERTIES OF PP-NBR BLENDS

Polymer mixtures based on polypropylene (PP) and acrylonitrile rubber (NBR) were prepared in a Haake Rheocord Mixer model 9000, coupled with a mixer chamber (cam rotors), in a proportion of 60:40/PP:NBR These m ixtures were processed in the presence either of phenolic resin SP-104 5 or a phenolic derivative synthesized with cashew nut shell liquid (C NSL) distillate, in different concentrations. The influence of this co mponent, as well as its concentration were evaluated by some processin g data and through mechanical tests.