The poly(lactic acid)/polycaprolactone/plant-based carbon black composite material disclosed herein comprises the following mass fractions: poly(lactic acid) 90 parts, polycaprolactone 20–40 parts, plant-based carbon black 1–10 parts, compatibilizer 1–5 parts, plasticizer 5–7 parts, lubricant 0.5–3 parts, coupling agent 1–5 parts, antioxidant 1–5 parts. This invention utilizes plant-based carbon black to reinforce biodegradable polyesters, enhancing their heat resistance and mechanical properties. This invention employs dual-temperature isothermal kinetic regulation to overcome the weak crystallization ability of polylactic acid. Using a ball mill and twin-screw extruder, it creates a robust mechanical interlocking network structure between polylactic acid and polycaprolactone, addressing the interfacial incompatibility issues during blending of polylactic acid composites. This method improves the thermal and mechanical behavior of the composite material, enhancing its crystallinity, tensile strength, flexural strength, impact toughness, and heat resistance.
Country Code: CN
Application Number: CN202210954289.5
