Composition and material for 3D printing and preparation and printing methods of composition and material
A technology of 3D printing and printing materials, applied in the field of 3D printing, can solve the problem of insufficient bonding strength between layers, and achieve the effect of solving the problem of insufficient bonding strength between layers, improving the bonding strength and high strength between layers
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[0047] The embodiment of the present application also provides a method for preparing printing materials for 3D printing, such as figure 1 As shown, the method includes the following steps:
[0048] Step 110: mixing each component in the composition with a high-speed mixer for 5-30 minutes to form a mixture;
[0049] Step 120: melt and plasticize the mixture formed in step 100 through a twin-screw extruder.
[0050] The embodiment of the present application also provides a 3D printing method based on the above printing materials, such as figure 2 As shown, the method includes the following steps:
[0051] Step 210: When the temperature is A, use the printing material in a molten state to perform 3D printing to obtain a primary printing product;
[0052] Step 220: At temperature B, heat the primary printed product to obtain a printed product.
[0053] Wherein, the temperature A is the temperature at which the thermosetting plastic in the composition does not chemically rea...
Embodiment 1
[0057]1.1. Proportion composition according to Table 1:
[0058] Table 1
[0059] serial number components parts by mass 1 epoxy resin 45 2 Polyurethane curing agent 35 3 Acrylic Additives 5 4 chopped glass fiber 10 5 calcium carbonate 5
[0060] 1.2. Preparation method
[0061] Step 121: weigh each component according to the formula in Table 1;
[0062] Step 122: adding the weighed components into a high-speed mixer and mixing for 2 minutes to form a mixture;
[0063] Step 123: melt and plasticize the mixture formed in step 122 through a twin-screw extruder to obtain a printing material.
[0064] 1.3, 3D printing
[0065] Step 131: When the temperature is 100°C, use a 3D printer to use the printing material generated in step 123 to perform 3D printing based on FDM to obtain a primary fan casing product;
[0066] Step 132: Put the primary fan shell product into an oven, heat at 180° C. for 30 minutes, and obtain a print...
Embodiment 2
[0068] 2.1. Proportion composition according to Table 2:
[0069] Table 2
[0070] serial number components parts by mass 1 unsaturated polyester 60 2 Cyanamide curing agent 10 3 Citric acid lipid additives 3 4 chopped carbon fiber 20 5 high concrete 17
[0071] 2.2. Preparation method
[0072] Step 221: weigh each component according to the formula in Table 2;
[0073] Step 222: adding the weighed components into a high-speed mixer and mixing for 3 minutes to form a mixture;
[0074] Step 223: melt and plasticize the mixture formed in step 222 through a twin-screw extruder to obtain a printing material.
[0075] 2.3, 3D printing
[0076] Step 231: When the temperature is 80°C, use a 3D printer to use the printing material generated in step 223 to perform 3D printing based on FDM to obtain a primary car roof product;
[0077] Step 232: Put the primary car top cover product into an oven, and heat it for 60 minutes at a t...
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