Biobased Composites Prepared Using an Environmentally Friendly Water-Slurry Methodology

To improve processability of benzoxazine monomer in preparation of composites, a water-slurry strategy was examined using several laboratory-scale instances. The water slurries were fabricated by mixing solid resin powder of 3-furfury-8-methoxy-3,4-dihydro-2H-1,3-benzoxazine with water and one type of filler particle, i.e., calcium carbonate, montmorillonite, or hollow glass beads. Experimental data show that approving liquidity can be achieved when more than 180 phr of water was mixed in the solid mixtures containing the resin powder and 100 phr of solid filler. The biobased composite prepared using the optimized condition exhibits outstanding mechanical properties and antifatigue performance as the composites prepared via solvent method. This water-slurry approach provides an environmentally friendly strategy to manuscript benzoxazine composites, offering benzoxazine with more promising applications in many industries such as building, wind energy, aircraft, and automobile.