Novel polyformaldehyde composite material and preparation method thereof
A composite material and polyoxymethylene technology, applied in the field of new polyoxymethylene composite material and its preparation, can solve the problems of difficult to achieve toughening purpose, inconvenient processing, poor compatibility, etc., and achieve improved mechanical properties, wear resistance, notch impact The effect of improving strength and suppressing thermal degradation
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Embodiment 1
[0042] A preparation method of a novel polyoxymethylene composite material, comprising the following steps:
[0043] (1) Weigh 100 parts of POM, 9.8 parts of modified fillers, 17.5 parts of heat stabilizer and 0.5 parts of lubricant and add them to the high mixer and mix them at room temperature for 8 minutes to obtain the mixed material;
[0044] (2) Add the mixed material prepared in the step (1) into a twin-screw extruder, melt, extrude, and granulate to obtain a novel polyoxymethylene composite material. Among them, the temperature of the first zone of the twin-screw extruder is 80°C, the temperature of the second zone is 130°C, the temperature of the third zone is 160°C, the temperature of the fourth zone is 160°C, the temperature of the fifth zone is 180°C, and the temperature of the sixth zone is 200°C; The head temperature is 190°C; the twin-screw host speed is 150r / min.
Embodiment 2
[0046] A preparation method of a novel polyoxymethylene composite material, comprising the following steps:
[0047] (1) Weigh 100 parts of POM, 14 parts of modified fillers, 17.5 parts of heat stabilizer and 0.6 parts of lubricant and add them to the high mixer and mix them at room temperature for 8 minutes to obtain the mixed material;
[0048] (2) Add the mixed material prepared in the step (1) into a twin-screw extruder, melt, extrude, and granulate to obtain a novel polyoxymethylene composite material. Among them, the temperature of the first zone of the twin-screw extruder is 80°C, the temperature of the second zone is 130°C, the temperature of the third zone is 160°C, the temperature of the fourth zone is 160°C, the temperature of the fifth zone is 180°C, and the temperature of the sixth zone is 200°C; The head temperature is 190°C; the twin-screw host speed is 150r / min.
Embodiment 3
[0050] A preparation method of a novel polyoxymethylene composite material, comprising the following steps:
[0051] (1) Weigh 100 parts of POM, 18 parts of modified fillers, 17.5 parts of heat stabilizer and 0.8 parts of lubricant and add them to the high mixer and mix at room temperature for 8 minutes to obtain the mixed material;
[0052] (2) Add the mixed material prepared in the step (1) into a twin-screw extruder, melt, extrude, and granulate to obtain a novel polyoxymethylene composite material. Among them, the temperature of the first zone of the twin-screw extruder is 80°C, the temperature of the second zone is 130°C, the temperature of the third zone is 160°C, the temperature of the fourth zone is 160°C, the temperature of the fifth zone is 180°C, and the temperature of the sixth zone is 200°C; The head temperature is 190°C; the twin-screw host speed is 150r / min.
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