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SEM-EDX images showing dispersion of Bi element in WPVC composites with (a) 20 pph wood particles and 25 pph Bi2O3, (b) 20 pph wood particles and 50 pph Bi2O3, (c) 20 pph wood particles and 75 pph Bi2O3, (d) 20 pph wood particles and 100 pph Bi2O3, (e) 40 pph wood particles and 25 pph Bi2O3, (f) 40 pph wood particles and 50 pph Bi2O3, (g) 40 pph wood particles and 75 pph Bi2O3, and (h) 40 pph wood particles and 100 pph Bi2O3. Red areas represent presence of Bi in composites.
