Flat-pressed wood plastic composites from sawdust and recycled ...23 Nov 2013 ... The ensuing sawdust and PET powder were mixed for 6 minutes in a rotary drum type blender according to the ratio of Table 1 for producing a homogenous composite. WPC panels were manufactured by flat press process using a dry blending method which was similar to an industrial production process. The mixture was placed in an aluminium caul plate using a forming box to form uniform mat. The press cycle consisted of three phases (Chen et al. 2006), i.e., first ...