The invention discloses a low-floating-fiber rigid-tough balanced polyoxymethylene composite material and its preparation method in the field of high-molecular materials. Polyoxymethylene, sulfonate-modified silicate, polyurethane elastomer, mineral powder, MDI compatibilizer, Antioxidant 1010 and zinc stearate lubricant are sequentially added into a high-speed mixer and stirred evenly to obtain a premix. The premix is fed into the hopper of a twin-screw extruder, and alkali-free glass fiber is added through side feeding at the fifth section for melt extrusion to prepare molten polyoxymethylene composite. The final solid granular product is obtained through traction, water cooling, air drying, pelletizing and collection. The silicon, nitrogen and sulfonate groups in sulfonate-modified silicate exert synergistic flame-retardant effects.
Area Code: CN
Application Number: CN202411549928.5
