Polypropylene for 3D printing, polyethylene composite consumable and preparation method thereof
A 3D printing, polypropylene technology, applied in the field of polypropylene and polyethylene composite consumables and their preparation, can solve the problem of inability to take into account environmental protection and industrial applications at the same time, 3D products do not have high impact resistance, not suitable for high temperature requirements, etc. problems, to achieve good anti-corrosion effect, increase molding stability, surface stiffness and good anti-scratch properties
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[0043] Example 1
[0044] 60% polypropylene, 27% polyethylene, 10% inorganic filler, 2% nucleating agent and 1% tackifier are used, wherein the inorganic filler in this embodiment is ultra-pure ultra-pure ultra-pure 2000 mesh diameter. Fine and nano-scale calcium carbonate is prepared into 3D printing consumables through the following steps:
[0045] ①, 60% polypropylene, 27% polyethylene, 10% calcium carbonate, 2% nucleating agent and 1% tackifier in proportion;
[0046] ②. Put the prepared raw materials into the dryer and dry them at a temperature of 90℃-100℃ for more than 2 hours, so that the moisture content of the raw materials is reduced to 0.2%-0.5%;
[0047] 3. Put the dried raw materials into the plastic mixer, and fully stir and mix for 30 minutes;
[0048] ④. Add the mixed raw materials to the twin-screw granulator, and heat the raw materials at a high temperature of 190 ℃-220 ℃, plasticize and dissolve the raw materials in the screw barrel at high temperature, a...
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[0057] Embodiment 2
[0058] 50% of polypropylene, 37% of polyethylene, 10% of inorganic filler, 2% of nucleating agent and 1% of tackifier are used, wherein the inorganic filler of this embodiment is mica powder with a diameter of 2000 meshes, Prepare 3D printing consumables through the following steps:
[0059] ①, 50% polypropylene, 37% polyethylene, 10% calcium carbonate, 2% nucleating agent and 1% tackifier in proportion;
[0060] ②. Put the prepared raw materials into the dryer and dry them at a temperature of 90℃-100℃ for more than 2 hours, so that the moisture content of the raw materials is reduced to 0.2%-0.5%;
[0061] 3. Put the dried raw materials into the plastic mixer, and fully stir and mix for 30 minutes;
[0062] ④. Add the mixed raw materials to the twin-screw granulator, and heat the raw materials at a high temperature of 190 ℃-220 ℃, plasticize and dissolve the raw materials in the screw barrel at high temperature, and extrude the raw materials at a scr...
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