High strength fused deposition material with ceramic texture and preparation method thereof
A technology of fused deposition and fused deposition molding, which is applied in the field of high-strength fused deposition materials and its preparation, and can solve problems such as cracking, insufficient adhesion, and product warping
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[0046] The present invention also provides a method for preparing the high-strength fused deposition material with ceramic texture, comprising the following steps:
[0047] Composite material particle preparation steps: take by weighing the resin below 0.15wt% moisture content, high-density mineral, the toughening agent below 0.15wt% moisture content, coupling agent, heat stabilizer, antioxidant and lubricant; Place them in a high-speed kneader respectively, keep the rotating speed at 3000-4000rpm / min, and stir at a high speed for 10-25min to obtain the mixture; add the mixture to the feed port of the twin-screw extruder, and the parameters of the twin-screw extruder are: temperature in the first zone 120-180℃, the temperature in the second zone is 180-220℃, the temperature in the third zone is 225-230℃, the temperature in the fourth zone is 230-240℃, the temperature in the fifth zone is 220-240℃, the temperature in the sixth zone is 220-240℃, the temperature in the seventh zon...
Embodiment 1
[0053] Example 1: Preparation of high-strength fused deposition material with ceramic texture
[0054] Raw materials: see Table 1.
[0055] Preparation:
[0056] (1) Take resin, high-density mineral, toughening agent, coupling agent, antioxidant, light stabilizer, lubricant by weight percentage;
[0057] (2) adding all the materials in the step (1) to a high-speed mixer for high-speed stirring and mixing to obtain a premix;
[0058] (3) The premix obtained in step (2) is added into the parallel twin-screw extruder from the main feeding hopper, so that all the component materials are sheared, melted, blended and extruded in the parallel twin-screw extruder, wherein the twin-screw The processing temperature of the extruder is 140 in the first zone, 200 in the second zone, 220 in the third zone, 220 in the fourth zone, 230 in the fifth zone, 230 in the sixth zone, 240 in the seventh zone, and 200°C for the die;
[0059] (4) cooling, drying, and pelletizing the strands coming o...
Embodiment 2
[0070] Example 2: Preparation of high-strength fused deposition material with ceramic texture
[0071] Raw materials: see Table 1.
[0072] Preparation method: with embodiment 1.
[0073] Effect verification: see Table 2.
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