Plastic recycling to make sustainable materials is considered one of the biggest initiatives toward a greener environment and socioeconomic development. This research aims to investigate the properties of a blend of recycled bale wrap linear low-density polyethylene (rLLDPE) and polypropylene (PP) (rLLDPE/PP 50:50 wt % matrix), which was further reinforced with 25 wt % agave fiber prepared by injection-molding. Different ratios of a combined industrial compatibilizer (maleic anhydridegrafted PP/PE) were used (1−3 wt %), which were compared with a synthesized compatibilizer made from maleic anhydride−PP/ rLLDPE in terms of mechanical and thermomechanical properties of the biocomposites. Incorporation of the compatibilizer in the composite improved the interfacial adhesion between the hydrophobic matrix and the hydrophilic agave fiber, which further increased the mechanical properties and heat deflection temperature of the composite. Scanning electron microscopy showed enhanced compatibility and adhesion between the fiber and the matrix by inclusion of 2 wt % compatibilizer. The synthesized compatibilizer-blended composite showed better mechanical properties than the industrial one, which indicates the potential application of this composite (around 62% recycled material) in the manufacture of packaging materials and commodity products.

Polypropylene (PP) composites were prepared by using additives CaCO3/rice husk ash (RHA) as filler, low density polyethylene (LDPE) as modifier, and jute fiber as reinforcement. The effects of filler, modifier, and chemically treated and untreated jute fiber reinforcement on the mechanical properties of the PP composites were studied. The result shows that incorporation of RHA in the PP matrix improves the tensile properties up to 16% which is almost similar to that of CaCO3 incorporated PP composite. This result clearly indicates the potential use of RHA as filler in % LDPE, and 30 wt% jute fiber.