Paper fiber and wood flower surface soaking attack. A previous study for WPC materials improvement

During last decades, natural fillers additions to polymeric matrixes have been developed, in particular Wood Plastic Composites achieved great importance thanks to their properties and possibility to use waste material for their production. Another source of waste product is paper, potentially useful as filler in polymeric matrixes. In order to improve fillers-matrix interface many efforts have been done, among which the use of surface modification is one of the most used. Chemical treatment with NaOH, has been used in this work, analysing the effect of several soaking time on different natural fillers.