CN105400164A - Low-temperature 3D printing material and preparation method thereof - Google Patents
Low-temperature 3D printing material and preparation method thereof Download PDFInfo
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- CN105400164A CN105400164A CN201510885209.5A CN201510885209A CN105400164A CN 105400164 A CN105400164 A CN 105400164A CN 201510885209 A CN201510885209 A CN 201510885209A CN 105400164 A CN105400164 A CN 105400164A
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Abstract
The invention discloses a low-temperature 3D printing material and a preparation method thereof. The low-temperature 3D printing material is prepared from, by mass, 58-84.2% of PCL, 15-40% of surface-processed inorganic powder, 0.3-1% of an antioxidant and 0.2-1% of a lubricating agent. The sum of the mass percentage content of all the components in the low-temperature 3D printing material is 100%. The conveying problem of the PCL material is solved, the low-temperature performance of the PCL material can also be kept, and the application field of the PCL material in the 3D printing industry is widened.
Description
Technical field
The present invention relates to 3D printed material technical field, particularly relate to a kind of low temperature 3D printed material and preparation method thereof.
Background technology
Polycaprolactone (Polycaprolacton is called for short PCL), its structural repeat unit has 5 nonpolar methylene radical-CH
2with a polar ester groups-COO-, such structure makes PCL have good snappiness and workability, and easily decomposed by microorganism or enzyme in occurring in nature ester group structure, final product is CO simultaneously
2and H
2o, has biodegradability, fine with biomass cells consistency in vivo, cell can on its pedestal normal growth, and can be biodegradable into CO
2and H
2o, has biocompatibility.PCL is a kind of semicrystalline nontoxicity polymkeric substance, and degree of crystallinity is about about 45%, has ultralow second-order transition temperature Tg (about-60 DEG C), therefore at room temperature in rubbery state; Because fusing point Tm (about 60 DEG C) is lower, can realize low temperature moulding, forming operation is relatively safe, and PCL not easily absorbs water, there is good thermoplasticity and molding processibility, can adopt extrude, blowing, the method such as injection moulding make fiber, thin slice, sheet material etc.; Decomposition temperature is about 350 DEG C, and the decomposition temperature of other polyester is generally about 250 DEG C, therefore it has good thermostability, simultaneously, PCL material has shape memory function, and the ultimate principle of this shape memory effect is " remembered primary state → fixed deformation state → recovered primary state " process macroscopically can being simply expressed as.
Print industry at 3D at present, there are the following problems as printed material for PCL material: PCL is easy softening transform in the process being transported to nozzle, thus makes the phenomenon occurring fracture at nozzle place, has a strong impact on carrying out smoothly of printing.
Summary of the invention
In order to make up above-mentioned the deficiencies in the prior art, the present invention proposes a kind of low temperature printed material and preparation method thereof, can ensure the low temperature moulding performance of PCL, can solve again the fracture problem of PCL in conveying.
Technical problem of the present invention is solved by following technical scheme:
A kind of low temperature 3D printed material, comprises each component of following mass percentage:
In described low temperature 3D printed material, the mass percentage sum of each component is 100%.
Preferably, described surface treated inorganic powder comprise inorganic powder and account for described inorganic powder total mass 0.5% ~ 1.5% silane coupling agent, described silane coupling agent is coated on the outside surface of described inorganic powder.
Preferably, described inorganic powder is a kind of compound in a kind of and mica in calcium carbonate, glass microballon, talcum powder, wollastonite, calcium sulfate, kaolin.
Preferably, the molecular weight of described polycaprolactone is 50000 ~ 120000.
Preferably, described inorganic powder is a kind of in a kind of and mica in calcium carbonate, glass microballon, talcum powder, wollastonite, calcium sulfate, kaolin is compound that 0.5:1 ~ 1.2:1 is composite in mass ratio.
Preferably, described antioxidant is: primary antioxidant four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and auxiliary antioxidant tricresyl phosphite (2,4-di-tert-butyl-phenyl) ester form for 3:1 is composite in mass ratio.
Preferably, described lubricant is at least one in white mineral oil, silicone oil, ethylene bis stearamide, pentaerythritol stearate.
A preparation method for described low temperature 3D printed material, comprises the following steps:
(1) by polycaprolactone at 40 DEG C of temperature time of drying more than 4h, other components are dry more than 2h at 50 ~ 80 DEG C of temperature;
(2) when described lubricant is liquid, first the polycaprolactone of drying and the lubricant of liquid are put into high-speed mixer in proportion, 3min ~ 5min is stirred at 10 DEG C ~ 30 DEG C, then add dry described inorganic powder, oxidation inhibitor in proportion again, at 10 ~ 30 DEG C, stir 5 ~ 15min; When described lubricant is solid, in proportion the described polycaprolactone of drying, inorganic powder, oxidation inhibitor is put into high-speed mixer and stir 5 ~ 15min at 10 ~ 30 DEG C;
(3) will add in the hopper of twin screw extruder through step (2) mixed material, extrude through melt blending, water-cooled, air-dryly obtain described low temperature 3D printed material, wherein, the temperature of twin screw extruder is set to: a district: 50 ~ 60 DEG C; 2nd district: 60 ~ 70 DEG C; 3rd district: 70 ~ 80 DEG C; 4th district: 80 ~ 90 DEG C; 5th district: 90 ~ 100 DEG C; 6th district: 80 ~ 100 DEG C; 7th district: 70 ~ 90 DEG C; 8th district: 60 ~ 80 DEG C; Head temperature: 60 ~ 80 DEG C; Screw speed controls at 200 ~ 400r/min.
Preferably, the step preparing described surface treated inorganic powder is also comprised:
The silane coupling agent dehydrated alcohol of account for inorganic powder total mass 0.5% ~ 1.5% is diluted, the mass ratio of described dehydrated alcohol and described silane coupling agent is 5:1 ~ 10:1, at 15 ~ 30 DEG C, add load weighted inorganic powder in proportion while stirring, stirring 5 ~ 10min is continued after inorganic powder all adds, then dry more than 4h at 60 ~ 80 DEG C, is finally placed in encloses container stand-by by dried powder.
Preferably, also comprise the step that the low temperature 3D printed material using bracing wire tractor described step (3) to be obtained carries out bracing wire bar, the automatic pulling speed of described bracing wire tractor is set to 150 ~ 350r/min.
The beneficial effect that the present invention is compared with the prior art is: add surface treated inorganic powder in the present invention, find that the Toughness of inorganic powder to polycaprolactone material added is less, but the hardness of PCL material can be improved, this had both solved the transportation problem of PCL material, the low-temperature performance of PCL material can be kept again, the hardness of low temperature 3D printed material of the present invention is: 80shoreA≤hardness < 90shoreA, beats Yin Wendu≤110 DEG C; Simultaneously because the cost of inorganic powder is lower, reduce the cost of printing.
Embodiment
Below in conjunction with preferred embodiment the invention will be further described.
The invention provides a kind of low temperature 3D printed material, in a specific embodiment, it comprises each component of following mass percentage:
In described low temperature 3D printed material, the mass percentage sum of each component is 100%.
Unmodified PCL is in the process being transported to nozzle, easy softening transform, thus the phenomenon of fracture can be there is at nozzle place, have a strong impact on carrying out smoothly of printing, for the problem of this prior art, experimental studies have found that through a large amount of, the major cause of the easy softening transform of PCL is caused to be that the hardness of PCL is lower, a certain amount of surface treated inorganic powder is added in PCL, the hardness of material can be increased, the low temperature moulding performance (processing temperature 70 ~ 110 DEG C) of PCL also can well keep, to ensure the security of low temperature printing simultaneously.
In some preferred embodiments, in following scheme or arbitrary combination can be selected:
Described surface treated inorganic powder comprise inorganic powder and account for described inorganic powder total mass 0.5% ~ 1.5% silane coupling agent, described silane coupling agent is coated on the outside surface of described inorganic powder.
Described inorganic powder is a kind of in a kind of and mica in calcium carbonate, glass microballon, talcum powder, wollastonite, calcium sulfate, kaolin is compound that 0.5:1 ~ 1.2:1 is composite in mass ratio.Adopt composite (spherical inorganic powder, as calcium carbonate or glass microballon, composite with sheet or fibrous inorganic powder) inorganic powder, while material hardness is improved, less on the impact of toughness, also can not affect the low temperature moulding performance of PCL simultaneously.
The molecular weight of described PCL is 50000 ~ 120000.
Described antioxidant is: primary antioxidant four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and auxiliary antioxidant tricresyl phosphite (2,4-di-tert-butyl-phenyl) ester form for 3:1 is composite in mass ratio.
Described lubricant is: at least one in white mineral oil, silicone oil, ethylene bis stearamide, pentaerythritol stearate.
The present invention also provides a kind of preparation method of described low temperature 3D printed material, and in a particular embodiment, this preparation method comprises the following steps:
(1) by polycaprolactone at 40 DEG C of temperature time of drying more than 4h, other components are dry more than 2h at 50 ~ 80 DEG C of temperature;
(2) when described lubricant is liquid, first the polycaprolactone of drying and the lubricant of liquid are put into high-speed mixer in proportion, 3min ~ 5min is stirred at 10 DEG C ~ 30 DEG C, then add dry described inorganic powder, oxidation inhibitor in proportion again, at 10 ~ 30 DEG C, stir 5 ~ 15min; When described lubricant is solid, in proportion the described polycaprolactone of drying, inorganic powder, oxidation inhibitor is put into high-speed mixer and stir 5 ~ 15min at 10 ~ 30 DEG C;
(3) will add in the hopper of twin screw extruder through step (2) mixed material, extrude through melt blending, water-cooled, air-dryly obtain described low temperature 3D printed material, wherein, the temperature of twin screw extruder is set to: a district: 50 ~ 60 DEG C; 2nd district: 60 ~ 70 DEG C; 3rd district: 70 ~ 80 DEG C; 4th district: 80 ~ 90 DEG C; 5th district: 90 ~ 100 DEG C; 6th district: 80 ~ 100 DEG C; 7th district: 70 ~ 90 DEG C; 8th district: 60 ~ 80 DEG C; Head temperature: 60 ~ 80 DEG C; Screw speed controls at 200 ~ 400r/min.
In a preferred embodiment, also comprise the step preparing described surface treated inorganic powder: diluted by the silane coupling agent dehydrated alcohol of account for inorganic powder total mass 0.5% ~ 1.5%, the mass ratio of described dehydrated alcohol and described silane coupling agent is 5:1 ~ 10:1, at 15 ~ 30 DEG C, add load weighted inorganic powder in proportion while stirring, stirring 5 ~ 10min is continued after inorganic powder all adds, then dry more than 4h at 60 ~ 80 DEG C, is finally placed in encloses container stand-by by dried powder.
In an additional preferred embodiment, also comprise the step that the low temperature 3D printed material using bracing wire tractor described step (3) to be obtained carries out bracing wire bar, the automatic pulling speed of described bracing wire tractor is set to 150 ~ 350r/min.
Below by way of embodiment more specifically, the present invention is described in detail.In each embodiment following, the molecular weight of PCL is 80000; Antioxidant adopts the compound of primary antioxidant 1010 and auxiliary antioxidant 168, and its commercial grades is B215; Lubricant is technical grade silicone oil, and its trade names are PMX-200; In surface treated inorganic powder, inorganic powder is glass microballon and talcous composite, its mass ratio is 1:1, the trade mark is respectively SD300B and WF90-12-90GB, glass microballon is ball-like structure, talcum powder is sheet structure, the two composite to material hardness improve while, less on the impact of toughness; The silane coupling agent be coated on outside inorganic powder adopts γ-aminopropyl triethoxysilane, and its commercial grades is KH550.
Embodiment 1
Low temperature 3D printed material comprises each component of following mass percentage: PCL is 83.9%, surface treated inorganic powder (hereinafter referred to as inorganic compound) is 15%, (oxidation inhibitor) B215 is 0.5%, and (lubricant) PMX-200 is 0.6%.
The preparation method of this low temperature 3D printed material is as follows:
The silane coupling agent dehydrated alcohol of account for inorganic powder total mass 1.0% is diluted, the mass ratio of dehydrated alcohol and silane coupling agent is 8:1, at 20 DEG C, diluent is put into the beaker that high-speed stirring instrument is housed, add load weighted inorganic powder in proportion while stirring, continue to stir 10min after inorganic powder all adds, finally place it in dry 5h in the baking oven of 80 DEG C, obtain surface treated inorganic powder, finally dried powder porphyrize is placed in encloses container stand-by.
By PCL at 40 DEG C dry 4 hours, remaining powdery components at 70 DEG C dry 2 hours.Taking PCL is 4.195kg, and inorganic compound is 0.75kg, B215 be 0.025kg, PMX-200 is 0.03kg; The PCL base material of drying is put into high-speed mixer, add the lubricant of liquid, 5min is stirred at 20 DEG C, then dry described inorganic powder, oxidation inhibitor is added in proportion again, 10min is stirred at 20 DEG C, finally the material mixed is joined in the hopper of twin screw extruder, control each section of temperature and exist: a district: 50 DEG C; 2nd district: 65 DEG C; 3rd district: 70 DEG C; 4th district: 85 DEG C; 5th district: 90 DEG C; 6th district: 90 DEG C; 7th district: 80 DEG C; 8th district: 75 DEG C; Head temperature: 70 DEG C; Screw speed controls at 300r/min.Extrude through melt blending, water-cooled, air-dry low temperature 3D printed material, the pelletizing of low temperature 3D printed material is used for detecting physicals, by low temperature 3D printed material bracing wire tractor bracing wire bar, the automatic pulling speed of bracing wire tractor is set to 300r/min, obtains the regular lines of wire diameter (format diameter of lines is 1.75mm or 3.0mm) and prints detection for 3D.Performance test is as shown in table 1 below.
Embodiment 2
Low temperature 3D printed material, comprises each component of following mass percentage: PCL is 73.8%, and inorganic compound is 25%, B215 be 0.5%, PMX-200 is 0.7%
The preparation method of this low temperature 3D printed material is as follows:
The silane coupling agent dehydrated alcohol of account for inorganic powder total mass 1.0% is diluted, the mass ratio of dehydrated alcohol and described silane coupling agent is 8:1, at 20 DEG C, diluent is put into the beaker that high-speed stirring instrument is housed, add load weighted inorganic powder in proportion while stirring, continue to stir 10min after inorganic powder all adds, finally place it in dry 5h in the baking oven of 80 DEG C, obtain surface treated inorganic powder, finally dried powder porphyrize is placed in encloses container stand-by.
By PCL at 40 DEG C dry 4 hours, remaining powdery components at 70 DEG C dry 2 hours.Taking PCL is 3.69kg, and inorganic compound is 1.25kg, B215 be 0.025kg, PMX-200 is 0.035kg; The PCL base material of drying is put into high-speed mixer, add liquid lubricant, 5min is stirred at 30 DEG C, then dry described inorganic powder, oxidation inhibitor is added in proportion again, 10min is stirred at 30 DEG C, finally the material mixed is joined in the hopper of twin screw extruder, control each section of temperature and exist: a district: 50 DEG C; 2nd district: 65 DEG C; 3rd district: 75 DEG C; 4th district: 85 DEG C; 5th district: 95 DEG C; 6th district: 95 DEG C; 7th district: 85 DEG C; 8th district: 80 DEG C; Head temperature: 75 DEG C; Screw speed controls at 300r/min.Extrude through melt blending, water-cooled, air-dry low temperature 3D printed material, the pelletizing of low temperature 3D printed material is used for detecting physicals, by low temperature 3D printed material bracing wire tractor bracing wire bar, the automatic pulling speed of bracing wire tractor is set to 250r/min, obtains the regular lines of wire diameter (format diameter of lines is 1.75mm or 3.0mm) and prints detection for 3D.Performance test is as shown in table 1 below.
Embodiment 3
Low temperature 3D printed material, comprises each component of following mass percentage: PCL is 63.7%, and inorganic compound is 35%, B215 be 0.5%, PMX-200 is 0.8%
The preparation method of this low temperature 3D printed material is as follows:
The silane coupling agent dehydrated alcohol of account for inorganic powder total mass 1.0% is diluted, the mass ratio of dehydrated alcohol and described silane coupling agent is 8:1, at 20 DEG C, diluent is put into the beaker that high-speed stirring instrument is housed, add load weighted inorganic powder in proportion while stirring, continue to stir 10min after inorganic powder all adds, finally place it in dry 5h in the baking oven of 80 DEG C, obtain surface treated inorganic powder, finally dried powder porphyrize is placed in encloses container stand-by.
By PCL at 40 DEG C dry 4 hours, remaining powdery components at 70 DEG C dry 2 hours.Taking PCL is 3.185kg, and inorganic compound is 1.75kg, B215 be 0.025kg, PMX-200 is 0.04kg; The PCL base material of drying is put into high-speed mixer, add liquid lubricant, 5min is stirred at 10 DEG C, then dry described inorganic powder, oxidation inhibitor is added in proportion again, 10min is stirred at 10 times, finally the material mixed is joined in the hopper of twin screw extruder, control each section of temperature and exist: a district: 50 DEG C; 2nd district: 70 DEG C; 3rd district: 80 DEG C; 4th district: 90 DEG C; 5th district: 100 DEG C; 6th district: 100 DEG C; 7th district: 90 DEG C; 8th district: 80 DEG C; Head temperature: 80 DEG C; Screw speed controls at 300r/min.Extrude through melt blending, water-cooled, air-dry low temperature 3D printed material, the pelletizing of low temperature 3D printed material is used for detecting physicals, by low temperature 3D printed material bracing wire tractor bracing wire bar, the automatic pulling speed of bracing wire tractor is set to 200r/min, obtains the regular lines of wire diameter (format diameter of lines is 1.75mm or 3.0mm) and prints detection for 3D.Performance test is as shown in table 1 below.
Comparative example 1
Low temperature 3D printed material, comprises each component of following mass percentage: PCL is 93.6%, and inorganic compound is 5%, B215 be 0.5%, PMX-200 is 0.4%
The preparation method of this low temperature 3D printed material is as follows:
The silane coupling agent dehydrated alcohol of account for inorganic powder total mass 1.0% is diluted, the mass ratio of dehydrated alcohol and described silane coupling agent is 8:1, at 20 DEG C, diluent is put into the beaker that high-speed stirring instrument is housed, add load weighted inorganic powder in proportion while stirring, continue to stir 10min after inorganic powder all adds, finally place it in dry 5h in the baking oven of 80 DEG C, obtain surface treated inorganic powder, finally dried powder porphyrize is placed in encloses container stand-by.
By PCL at 40 DEG C dry 4 hours, remaining powdery components at 70 DEG C dry 2 hours.Taking PCL is 4.70kg, and inorganic compound is 0.25kg, B215 be 0.025kg, PMX-200 is 0.025kg; The PCL base material of drying is put into high-speed mixer, add liquid lubricant, 5min is stirred at 10 DEG C ~ 30 DEG C, then dry described oxidation inhibitor is added in proportion again, 10min is stirred at 10 ~ 30 DEG C, finally the material mixed is joined in the hopper of twin screw extruder, control each section of temperature and exist: a district: 50 DEG C; 2nd district: 60 DEG C; 3rd district: 75 DEG C; 4th district: 80 DEG C; 5th district: 90 DEG C; 6th district: 85 DEG C; 7th district: 80 DEG C; 8th district: 70 DEG C; Head temperature: 70 DEG C; Screw speed controls at 300r/min.Extrude through melt blending, water-cooled, air-dry low temperature 3D printed material, the pelletizing of low temperature 3D printed material is used for detecting physicals, by low temperature 3D printed material bracing wire tractor bracing wire bar, the automatic pulling speed of bracing wire tractor is set to 300r/min, obtains the regular lines of wire diameter (format diameter of lines is 1.75mm or 3.0mm) and prints detection for 3D.Performance test is as shown in table 1 below.
Comparative example 2
Low temperature 3D printed material, comprises each component of following mass percentage: PCL is 48.6%, and inorganic compound is 50%, B215 be 0.5%, PMX-200 is 0.9%
The preparation method of this low temperature 3D printed material is as follows:
The silane coupling agent dehydrated alcohol of account for inorganic powder total mass 1.0% is diluted, the mass ratio of dehydrated alcohol and described silane coupling agent is 8:1, at 20 DEG C, diluent is put into the beaker that high-speed stirring instrument is housed, add load weighted inorganic powder in proportion while stirring, continue to stir 10min after inorganic powder all adds, finally place it in dry 5h in the baking oven of 80 DEG C, obtain surface treated inorganic powder, finally dried powder porphyrize is placed in encloses container stand-by.
By PCL at 40 DEG C dry 4 hours, remaining powdery components at 70 DEG C dry 2 hours.Taking PCL is 2.43kg, and inorganic compound is 2.5kg, B215 be 0.025kg, PMX-200 is 0.045kg; The PCL base material of drying is put into high-speed mixer, add liquid lubricant, 5min is stirred at 10 DEG C ~ 30 DEG C, then dry described inorganic powder, oxidation inhibitor is added in proportion again, 10min is stirred at 10 ~ 30 DEG C, finally the material mixed is joined in the hopper of twin screw extruder, control each section of temperature and exist: a district: 50 DEG C; 2nd district: 70 DEG C; 3rd district: 80 DEG C; 4th district: 90 DEG C; 5th district: 100 DEG C; 6th district: 100 DEG C; 7th district: 90 DEG C; 8th district: 80 DEG C; Head temperature: 80 DEG C; Screw speed controls at 300r/min.Extrude through melt blending, water-cooled, air-dry low temperature 3D printed material, the pelletizing of low temperature 3D printed material is used for detecting physicals, by low temperature 3D printed material bracing wire tractor bracing wire bar, the automatic pulling speed of bracing wire tractor is set to 200r/min, obtains the regular lines of wire diameter (format diameter of lines is 1.75mm or 3.0mm) and prints detection for 3D.Performance test is as shown in table 1 below.
The performance test of the low temperature 3D printed material of embodiment 1 to 3 and comparative example 1 and 2 is as shown in table 1 below:
Table 1:
In table 1, at the direct coating solid glue of the base plate of FDM-3D printer, not T-me line paper or high temperature film, temperature is set to 45 DEG C, and nozzle print speed is 10 ~ 40mm/s, and the nozzle sky speed of moving is 50 ~ 100mm/s; The diameter that 3D prints the nozzle of pen is 0.7mm, and the nozzle theory amount of weaving silk is 0.076 ~ 0.86 cc/min (adjustable), and discharge method is that hot-melt extruded is piled up shaping.As can be seen from Table 1: embodiments of the invention 1 ~ 3 can meet 3D and print the shaping requirement of low temperature (70 ~ 110 DEG C), printing is safer, the accident that burn and scald or high temperature cause can be avoided, especially for the operation of minor colony, on the other hand, the theory of low-loss and energy-saving environmental protection is met.Simultaneously, the hardness of the low temperature 3D printed material in the embodiment of the present invention is 80shoreA≤hardness < 90shoreA, make the shaping charging of FDM-3D printer smooth and easy, printing can be normally shaping, and the printing charging that 3D prints pen is smooth and easy, and formed product is also better, there will not be fracture, distortion, if and hardness is at more than 90shoreA, print temperature will be made more than 130 DEG C, cannot low temperature moulding be realized.
More than test proof, the toughness of the low temperature 3D printed material of the embodiment of the present invention is better, hardness is higher, 3D printing shaping is better, such as charging is smooth and easy, make 3D printed product not only have good physicals, but also there is 3D printing formability and outward appearance formedness, PCL material prints industry Application Areas at 3D can be opened up.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, some equivalent to substitute or obvious modification can also be made, and performance or purposes identical, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a low temperature 3D printed material, is characterized in that, comprises each component of following mass percentage:
In described low temperature 3D printed material, the mass percentage sum of each component is 100%.
2. low temperature 3D printed material according to claim 1, it is characterized in that, described surface treated inorganic powder comprise inorganic powder and account for described inorganic powder total mass 0.5% ~ 1.5% silane coupling agent, described silane coupling agent is coated on the outside surface of described inorganic powder.
3. low temperature 3D printed material according to claim 1 and 2, is characterized in that, described inorganic powder is a kind of compound in a kind of and mica in calcium carbonate, glass microballon, talcum powder, wollastonite, calcium sulfate, kaolin.
4. low temperature 3D printed material according to claim 1 and 2, is characterized in that, the molecular weight of described polycaprolactone is 50000 ~ 120000.
5. low temperature 3D printed material according to claim 3, it is characterized in that, described inorganic powder is a kind of in a kind of and mica in calcium carbonate, glass microballon, talcum powder, wollastonite, calcium sulfate, kaolin is compound that 0.5:1 ~ 1.2:1 is composite in mass ratio.
6. low temperature 3D printed material according to claim 1 and 2, it is characterized in that, described antioxidant is: primary antioxidant four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and auxiliary antioxidant tricresyl phosphite (2,4-di-tert-butyl-phenyl) ester form for 3:1 is composite in mass ratio.
7. low temperature 3D printed material according to claim 1 and 2, is characterized in that, described lubricant is at least one in white mineral oil, silicone oil, ethylene bis stearamide, pentaerythritol stearate.
8. a preparation method for the arbitrary described low temperature 3D printed material of claim 1-7, is characterized in that, comprise the following steps:
(1) by polycaprolactone at 40 DEG C of temperature time of drying more than 4h, other components are dry more than 2h at 50 ~ 80 DEG C of temperature;
(2) when described lubricant is liquid, first the polycaprolactone of drying and the lubricant of liquid are put into high-speed mixer in proportion, 3min ~ 5min is stirred at 10 DEG C ~ 30 DEG C, then add dry described inorganic powder, oxidation inhibitor in proportion again, at 10 ~ 30 DEG C, stir 5 ~ 15min; When described lubricant is solid, in proportion the described polycaprolactone of drying, inorganic powder, oxidation inhibitor is put into high-speed mixer and stir 5 ~ 15min at 10 ~ 30 DEG C;
(3) will add in the hopper of twin screw extruder through step (2) mixed material, extrude through melt blending, water-cooled, air-dryly obtain described low temperature 3D printed material, wherein, the temperature of twin screw extruder is set to: a district: 50 ~ 60 DEG C; 2nd district: 60 ~ 70 DEG C; 3rd district: 70 ~ 80 DEG C; 4th district: 80 ~ 90 DEG C; 5th district: 90 ~ 100 DEG C; 6th district: 80 ~ 100 DEG C; 7th district: 70 ~ 90 DEG C; 8th district: 60 ~ 80 DEG C; Head temperature: 60 ~ 80 DEG C; Screw speed controls at 200 ~ 400r/min.
9. the preparation method of low temperature 3D printed material according to claim 8, is characterized in that, also comprises the step preparing described surface treated inorganic powder:
The silane coupling agent dehydrated alcohol of account for inorganic powder total mass 0.5% ~ 1.5% is diluted, the mass ratio of described dehydrated alcohol and described silane coupling agent is 5:1 ~ 10:1, at 15 ~ 30 DEG C, add load weighted inorganic powder in proportion while stirring, stirring 5 ~ 10min is continued after inorganic powder all adds, then dry more than 4h at 60 ~ 80 DEG C, is finally placed in encloses container stand-by by dried powder.
10. the preparation method of low temperature 3D printed material according to claim 8 or claim 9, it is characterized in that: also comprise the step that the low temperature 3D printed material using bracing wire tractor described step (3) to be obtained carries out bracing wire bar, the automatic pulling speed of described bracing wire tractor is set to 150 ~ 350r/min.
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| CN106084691B (en) * | 2016-06-15 | 2018-01-09 | 李兵 | Low temperature resistant 3D printing consumptive material |
| CN107556706A (en) * | 2016-06-30 | 2018-01-09 | 张晓军 | The low temperature painting material solidified rapidly |
| WO2018074967A1 (en) * | 2016-10-18 | 2018-04-26 | Perstorp Ab | Method for increasing the melt flow rate in a thermoplastic composition |
| CN106633732A (en) * | 2016-12-31 | 2017-05-10 | 广州天泓医疗科技有限公司 | Low-temperature thermoplastic material and preparation method thereof |
| CN106867214A (en) * | 2017-02-28 | 2017-06-20 | 华南理工大学 | It is a kind of for the low-temperature thermoplastic 3 D-printing material of BUILDINGS MODELS product and preparation |
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| CN107573660A (en) * | 2017-09-14 | 2018-01-12 | 北京化工大学 | A kind of low temperature FDM types biological medical degradable 3D printing material, preparation and application |
| CN107641303A (en) * | 2017-09-14 | 2018-01-30 | 北京化工大学 | A kind of low temperature FDM type 3D printings material, preparation and application |
| CN107474505A (en) * | 2017-09-15 | 2017-12-15 | 安徽江淮汽车集团股份有限公司 | A kind of polycaprolactone composite material and preparation method thereof |
| CN107674391A (en) * | 2017-09-18 | 2018-02-09 | 广东轻工职业技术学院 | A kind of low-melting-point resin material and its preparation technology for 3D printing pen |
| CN107793718A (en) * | 2017-11-09 | 2018-03-13 | 上海纳米技术及应用国家工程研究中心有限公司 | Medical 3D printing plastics and its application |
| CN108192373A (en) * | 2017-12-31 | 2018-06-22 | 芜湖林电子科技有限公司 | A kind of compound 3D printing material and preparation method thereof |
| CN108285557A (en) * | 2017-12-31 | 2018-07-17 | 芜湖林电子科技有限公司 | A kind of 3D printing material and preparation method thereof with anti-microbial property |
| CN109135218A (en) * | 2018-06-08 | 2019-01-04 | 珠海市三绿实业有限公司 | A kind of low temperature 3D printing material and preparation method thereof |
| CN109135218B (en) * | 2018-06-08 | 2020-12-29 | 珠海市三绿实业有限公司 | Low-temperature 3D printing material and preparation method thereof |
| CN109082091A (en) * | 2018-07-09 | 2018-12-25 | 福建师范大学 | A kind of 3D printing wire rod of Desulphurization filling degradable low temperature and preparation method thereof |
| CN110051887A (en) * | 2019-03-27 | 2019-07-26 | 王小健 | A kind of bone rehabilitation protector low temperature 3D printing material and preparation method thereof |
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