3D low-temperature printing material and preparing method thereof
A printing material and low-temperature technology, which is applied in the field of 3D printing materials, can solve problems such as difficult rapid curing molding, nozzle cut-off, and flow, etc., and achieve rapid curing molding, improved heat resistance, and good compatibility.
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Embodiment 1
[0022] Weigh 98% of PEO (molecular weight is 1 million), the stabilizer is 7% of PEO, and the plasticizer is 2% of PEO.
[0023] Dry polyethylene oxide PEO at 50°C for more than 4 hours, and dry other components at 50-80°C for more than 2 hours; first put the dried polyethylene oxide and plasticizer into a high-speed mixer in proportion, Stir for 3-5min at -30°C, then add stabilizer and rigid low-temperature melt powder in proportion, and stir for 5-10min at 10-30°C; put the above-mentioned mixed materials into the twin-screw hopper, melt together Mixed extrusion, air cooling, and air drying to obtain the 3D low-temperature printing material, wherein the temperature of the twin-screw extruder is set as follows: Zone 1: 70-80°C; Zone 2: 80-100°C; Zone 3: 100-120°C ℃, zone 4: 90-110℃; zone 5: 80-90℃; head temperature: 70-80℃; screw speed controlled at 200-500r / min. Set the pulling speed of the wire drawing machine to 50-350r / min, and stretch to obtain a wire with a diameter of ...
Embodiment 2
[0025] Weigh 98% of PEO (molecular weight is 1,000,000), stabilizer is 7% of PEO, plasticizer is 2% of PEO, and softening point is 2% of phenolic resin of 80°C.
[0026] Dry polyethylene oxide PEO at 50°C for more than 4 hours, and dry other components at 50-80°C for more than 2 hours; first put the dried polyethylene oxide and plasticizer into a high-speed mixer in proportion, Stir for 3-5min at -30°C, then add stabilizer and rigid low-temperature melt powder in proportion, and stir for 5-10min at 10-30°C; put the above-mentioned mixed materials into the twin-screw hopper, melt together Mixed extrusion, air cooling, and air drying to obtain the 3D low-temperature printing material, wherein the temperature of the twin-screw extruder is set as follows: Zone 1: 70-80°C; Zone 2: 80-100°C; Zone 3: 100-120°C ℃, zone 4: 90-110℃; zone 5: 80-90℃; head temperature: 70-80℃; screw speed controlled at 200-500r / min. Set the pulling speed of the wire drawing machine to 50-350r / min, and str...
Embodiment 3
[0028] Weigh 95% of PEO (molecular weight is 1 million), 5% of phenolic resin with a softening point of 80°C, 7% of PEO as a stabilizer, and 2% of PEO as a plasticizer.
[0029] Dry polyethylene oxide PEO at 50°C for more than 4 hours, and dry other components at 50-80°C for more than 2 hours; first put the dried polyethylene oxide and plasticizer into a high-speed mixer in proportion, Stir for 3-5min at -30°C, then add antioxidant and rigid low-temperature melt powder in proportion, and stir for 5-10min at 10-30°C; put the above-mentioned mixed materials into the twin-screw hopper, melt Blending extrusion, water cooling, and air drying to obtain the 3D low-temperature printing material, wherein the temperature of the twin-screw extruder is set as follows: Zone 1: 70-80°C; Zone 2: 80-100°C; Zone 3: 100-120°C ℃, zone 4: 90-110℃; zone 5: 80-90℃; head temperature: 70-80℃; screw speed controlled at 200-500r / min. Set the pulling speed of the wire drawing machine to 50-350r / min, an...
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