CN104672826A - 3D printed PLA consumable and preparation method thereof - Google Patents
3D printed PLA consumable and preparation method thereof Download PDFInfo
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- CN104672826A CN104672826A CN201510069937.9A CN201510069937A CN104672826A CN 104672826 A CN104672826 A CN 104672826A CN 201510069937 A CN201510069937 A CN 201510069937A CN 104672826 A CN104672826 A CN 104672826A
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Abstract
The invention belongs to the field of 3D printers and provides a 3D printed PLA consumable and a preparation method thereof. The 3D printed PLA consumable is prepared from the following raw materials in percentage by weight: 99.3-99.7% of PLA plastic, 0.1-0.3% of pigments and 0.2-0.4% of auxiliaries. The preparation method comprises the following steps: weighing the components in percentage by weight; uniformly mixing the weighed components to obtain a mixture; adding the obtained mixture into a double screw extruder; coupling and extruding to obtain PLA colored plastic particles; and then adding the PLA colored plastic particles into a 3D twine machine to prepare the 3D printed PLA consumable. According to the 3D printed PLA consumable, a high-quality, environment-friendly and naturally degradable PLA product is manufactured by utilizing PLA plastic on the premise that the environment-friendly degrading advantage of the PLA plastic is not changed, and the preparation method is simple in step, easy to control and low in cost.
Description
Technical field
The invention belongs to 3D printer field, particularly relate to a kind of 3D and print PLA consumptive material and preparation method thereof.
Background technology
3D printing technique is a kind of revolutionary industrial forming technique, starting material just can straight forming through 3D printer, it is based on a kind of digital model file, use powdery metal or plastics etc. can jointing material, the technology of constructed object is carried out by the mode successively printed, do not need the manufacture through mould, save time and the cost of Making mold, along with developing rapidly of 3D printing technique, it also improves rapidly the requirement of material, the main PLA plastics (poly(lactic acid)) of existing 3D printing consumables, ABS, nylon618, PVA etc., wherein, because PLA plastics are a kind of novel biodegradable materials, use reproducible plant resources (as corn) the starch material that proposes make, starch material makes lactic acid via fermenting process, poly(lactic acid) is converted to again by chemosynthesis, it has good biological degradability, can be degradable by occurring in nature microorganism after using, final generation carbonic acid gas and water, free from environmental pollution, this is highly beneficial to protection of the environment, it is generally acknowledged environment-friendly material, meet US FDA standard, therefore, PLA plastics are widely used in 3D printed material, although, PLA plastics have higher tensile strength in the application, modulus of compression, but matter is hard, toughness is poor, lack flexible and elasticity, very easily flexural deformation, these shortcomings all limit its application, in order to overcome the shortcoming that PLA plastics exist in the application, PLA goods in the market, major part is all processed into PLA goods to PLA plastics do modification, all add other resin copolymerization, and the resin copolymerization added to account for PLA goods ratio quite high, thus environmental protection aspect and the degradation property of PLA goods is affected, lose the advantage of PLA plastics itself.
In sum, how can produce high quality and environmental protection in the performance basis not changing PLA plastics, can the PLA goods of natural degradation be problem demanding prompt solution.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of 3D is provided to print PLA consumptive material and preparation method thereof, purport is in the prior art in order to overcome the shortcoming that PLA plastics exist in the application, modification processing is done to PLA plastics, thus affects the environmental protection aspect of PLA goods and the problem of degradation property.
The present invention is achieved in that on the one hand, provides the 3D printing PLA consumptive material of a kind of high quality, environmental protection, energy natural degradation, comprises the component of following weight percent:
PLA plastics 99.3-99.7%
Pigment 0.1-0.3%
Auxiliary agent 0.2-0.4%.
Particularly, the fusing point of described PLA plastics is 175 ~ 185 DEG C, and density is 1.20-1.30kg/L, and intrinsic viscosity IV is 0.2 ~ 8dl/g.
Particularly, the weight-average molecular weight of described PLA plastics is 40000-200000.
Particularly, described PLA plastics are L-type poly(lactic acid) or D type poly(lactic acid), and its melting index under 190 DEG C/2.16kg condition is 5-30g/10min.
Particularly, described pigment is pigment dyestuff or mineral dye.
On the other hand, provide a kind of 3D and print PLA consumptive material preparation method, comprise the following steps:
(1) recipe ingredient is taken
The formula printing PLA consumptive material according to 3D described in claim 1 takes described PLA plastics, pigment and auxiliary agent respectively;
(2) mixture is prepared
The described PLA plastics, pigment and the auxiliary agent that take in step (1) are put into high-speed mixer mixing 5-20min, mixes, obtain mixture;
(3) PLA colored plastic grain is prepared
The mixture obtained in step (2) is added in twin screw extruder, extrudes through coupling, obtain PLA colored plastic grain;
(4) prepare 3D and print PLA consumptive material
The PLA colored plastic grain obtained in step (3) is added 3D twine machine, prepares 3D and print PLA consumptive material.
Particularly, in step (3), the processing condition of described twin screw extruder are: extrusion temperature is 200-230 DEG C, and the length-to-diameter ratio of twin screw extruder is 40:1 ~ 52:1, and the rotating speed of twin screw extruder is 300-550rpm.
Particularly, in step (4), the cross section that described 3D prints PLA consumptive material is circular, and the diameter that described 3D prints PLA consumptive material is 1.7-1.8mm.
Particularly, in step (4), the cross section that described 3D prints PLA consumptive material is circular, and the diameter that described 3D prints PLA consumptive material is 2.8-3.0mm.
Beneficial effect of the present invention is: 3D of the present invention prints PLA consumptive material, adopt based on PLA plastics, add a small amount of environmental-friendly pigment and auxiliary agent, extrude through twin screw extruder coupling, make PLA color grain, and then to extrude through 3D twine machine and obtain 3D and print PLA consumptive material, this 3D prints PLA consumptive material can under the prerequisite not changing PLA plastics environment protecting degraded advantage, PLA plastics are utilized to produce high quality, environmental protection, the PLA goods of energy natural degradation, this 3D prints PLA consumptive material and possesses biodegradability, more friendly to environment, meet the developing direction of current material, and this preparation method's operation is simple, easy control, cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that the 3D that the embodiment of the present invention provides prints PLA consumptive material preparation method schema.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
The embodiment of the present invention provides a kind of 3D to print PLA consumptive material, comprises the component of following weight percent:
PLA plastics 99.3-99.7%
Pigment 0.1-0.3%
Auxiliary agent 0.2-0.4%.
Particularly, above-mentioned PLA plastics are refined by maize cereal to form, matter is hard, intensity and rigidity high, surface-brightening, smooth degree is fine, processing odorlessness, meet U.S. FDA certification, can natural degradation, not curling during printing, not alice, its fusing point is 175 ~ 185 DEG C, density is 1.20-1.30kg/L, intrinsic viscosity IV is 0.2 ~ 8dl/g, as preferred embodiment, PLA can purchase the PLA generated in Nature Works company of the U.S., in a particular embodiment, the mass percentage of these PLA plastics can be 99.3%, 99.4%, 99.5%, 99.6%, concrete component such as 99.7% grade.
The weight-average molecular weight of above-mentioned PLA plastics (poly(lactic acid)) is 40000-200000.
Above-mentioned poly(lactic acid) is L-type poly(lactic acid) or D type poly(lactic acid), and its melting index under 190 DEG C/2.16kg condition is 5-30g/10min, and concrete melting index can according to ASTM D1238 standard.
Above-mentioned pigment is pigment dyestuff or mineral dye, wherein, pigment dyestuff has: phthalocyanine is red, phthalocyanine blue, phthalocyanine green, everbright fast red, macromole is red, macromole is yellow, Deng, conventional mineral dye has: titanium dioxide, carbon black, titan yellow and ultramarine etc., by adding a certain amount of different pigment, the color of the 3D printing consumables made is made to have bright red, orange, yellow, green, sky blue, purple, grey, black, white, PLA primary colors, pink, join Pantone look, and this 3D printing consumables color distribution is even, be applicable to printing all kinds of large minimodel, in a particular embodiment, the mass percentage of this pigment can be 0.1%, 0.2%, concrete component such as 0.3% grade.
Above-mentioned auxiliary agent plays lubrication and increases heatproof and hardness effect, and in a particular embodiment, the mass percentage of this auxiliary agent can be the concrete component such as 0.2%, 0.3%, 0.4%.
Correspondingly, embodiments provide a kind of 3D and print PLA consumptive material preparation method, as shown in Figure 1, this preparation method comprises the steps: this preparation method's schema
(1) recipe ingredient is taken
The formula printing PLA consumptive material according to above-mentioned 3D takes described PLA plastics, pigment and auxiliary agent respectively;
(2) mixture is prepared
The PLA plastics, pigment and the auxiliary agent that take in step (1) are put into high-speed mixer mixing 5-20min, mixes, obtain mixture;
(3) PLA colored plastic grain is prepared
The mixture obtained in step (2) is added in twin screw extruder, extrudes through coupling, obtain PLA colored plastic grain;
(4) prepare 3D and print PLA consumptive material
The PLA colored plastic grain obtained in step (3) is added 3D twine machine, prepares 3D and print PLA consumptive material.
Particularly, in step (3), the processing condition of described twin screw extruder are: extrusion temperature is 200-230 DEG C, the length-to-diameter ratio of twin screw extruder is 40:1 ~ 52:1, the rotating speed of twin screw extruder is 300-550rpm, along with the raising of temperature, the plasticizing of plastics is excellent, and the product strength printed is better.
Particularly, in step (4), the cross section that 3D prints PLA consumptive material is circular, and the diameter that 3D prints PLA consumptive material is 1.7-1.8mm, is preferably 1.75mm.
Particularly, in step (4), the cross section that 3D prints PLA consumptive material is circular, and the diameter that 3D prints PLA consumptive material is 2.8-3.0mm, is preferably 3mm.
3D of the present invention prints PLA consumptive material preparation method, simple to operate, with low cost, be very suitable for suitability for industrialized production, by adopting based on PLA plastics, add a small amount of environmental-friendly pigment and auxiliary agent, extrude through twin screw extruder coupling, make PLA color grain, and then extrude through 3D twine machine, obtain 3D and print PLA consumptive material, this 3D prints PLA consumptive material and can reach under the prerequisite not changing PLA plastics environment protecting degraded advantage, PLA plastics are utilized to produce high quality, environmental protection, the PLA goods of energy natural degradation, and this preparation method's operation is simple, easy control, cost is low.
Below in conjunction with specific embodiment, one detailed elaboration is done to the present invention.
Embodiment 1
The 3D of this embodiment prints PLA consumptive material, by weight percentage, composed of the following components:
PLA plastics 99.5%, pigment 0.2%, auxiliary agent 0.3%.
Its preparation method is as follows:
(1) each component is taken by above-mentioned weight percent;
(2) the PLA plastics taken in step (1), pigment, auxiliary agent are put into high-speed mixer mixing 5-20min, mix, obtain mixture;
(3) mixture obtained in step (2) is added in twin screw extruder, extrude through coupling, obtain PLA colored plastic grain, the processing condition of twin screw extruder are: extrusion temperature is 200-230 DEG C, the length-to-diameter ratio of twin screw extruder is 40:1 ~ 52:1, and the rotating speed of twin screw extruder is 300-550rpm;
(4) the PLA colored plastic grain obtained in step (3) is added 3D twine machine, prepare 3D and print PLA consumptive material.
Embodiment 2
The 3D of this embodiment prints PLA consumptive material, by weight percentage, composed of the following components:
PLA plastics 99.4%, pigment 0.3%, auxiliary agent 0.3%.
Its preparation method is as follows:
(1) each component is taken by above-mentioned weight percent;
(2) the PLA plastics taken in step (1), pigment, auxiliary agent are put into high-speed mixer mixing 5-20min, mix, obtain mixture;
(3) mixture obtained in step (2) is added in twin screw extruder, extrude through coupling, obtain PLA colored plastic grain, the processing condition of twin screw extruder are: extrusion temperature is 200-230 DEG C, the length-to-diameter ratio of twin screw extruder is 40:1 ~ 52:1, and the rotating speed of twin screw extruder is 300-550rpm;
(4) the PLA colored plastic grain obtained in step (3) is added 3D twine machine, prepare 3D and print PLA consumptive material.
Embodiment 3
The 3D of this embodiment prints PLA consumptive material, by weight percentage, composed of the following components:
PLA plastics 99.3%, pigment 0.3%, auxiliary agent 0.4%.
Its preparation method is as follows:
(1) each component is taken by above-mentioned weight percent;
(2) the PLA plastics taken in step (1), pigment, auxiliary agent are put into high-speed mixer mixing 5-20min, mix, obtain mixture;
(3) mixture obtained in step (2) is added in twin screw extruder, extrude through coupling, obtain PLA colored plastic grain, the processing condition of twin screw extruder are: extrusion temperature is 200-230 DEG C, the length-to-diameter ratio of twin screw extruder is 40:1 ~ 52:1, and the rotating speed of twin screw extruder is 300-550rpm;
(4) the PLA colored plastic grain obtained in step (3) is added 3D twine machine, prepare 3D and print PLA consumptive material.
Embodiment 4
The 3D of this embodiment prints PLA consumptive material, by weight percentage, composed of the following components:
PLA plastics 99.6%, pigment 0.2%, auxiliary agent 0.2%.
Its preparation method is as follows:
(1) each component is taken by above-mentioned weight percent;
(2) the PLA plastics taken in step (1), pigment, auxiliary agent are put into high-speed mixer mixing 5-20min, mix, obtain mixture;
(3) mixture obtained in step (2) is added in twin screw extruder, extrude through coupling, obtain PLA colored plastic grain, the processing condition of twin screw extruder are: extrusion temperature is 200-230 DEG C, the length-to-diameter ratio of twin screw extruder is 40:1 ~ 52:1, and the rotating speed of twin screw extruder is 300-550rpm;
(4) the PLA colored plastic grain obtained in step (3) is added 3D twine machine, prepare 3D and print PLA consumptive material.
Embodiment 5
The 3D of this embodiment prints PLA consumptive material, by weight percentage, composed of the following components:
PLA plastics 99.7%, pigment 0.1%, auxiliary agent 0.2%.
Its preparation method is as follows:
(1) each component is taken by above-mentioned weight percent;
(2) the PLA plastics taken in step (1), pigment, auxiliary agent are put into high-speed mixer mixing 5-20min, mix, obtain mixture;
(3) mixture obtained in step (2) is added in twin screw extruder, extrude through coupling, obtain PLA colored plastic grain, the processing condition of twin screw extruder are: extrusion temperature is 200-230 DEG C, the length-to-diameter ratio of twin screw extruder is 40:1 ~ 52:1, and the rotating speed of twin screw extruder is 300-550rpm;
(4) the PLA colored plastic grain obtained in step (3) is added 3D twine machine, prepare 3D and print PLA consumptive material.
Can find that 3D of the present invention prints PLA consumptive material and can reach under the prerequisite not changing PLA plastics environment protecting degraded advantage by above embodiment, PLA plastics are utilized to produce the PLA goods of high quality, environmental protection, energy natural degradation, can be widely used on 3D printer, and this preparation method's operation simply, is easily controlled, cost is low.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention figure.
Claims (9)
1. 3D prints a PLA consumptive material, it is characterized in that, comprises the component of following weight percent:
PLA plastics 99.3-99.7%
Pigment 0.1-0.3%
Auxiliary agent 0.2-0.4%.
2. 3D as claimed in claim 1 prints PLA consumptive material, and it is characterized in that, the fusing point of described PLA plastics is 175 ~ 185 DEG C, and density is 1.20-1.30kg/L, and intrinsic viscosity IV is 0.2 ~ 8dl/g.
3. 3D as claimed in claim 1 prints PLA consumptive material, and it is characterized in that, the weight-average molecular weight of described PLA plastics is 40000-200000.
4. 3D as claimed in claim 1 prints PLA consumptive material, and it is characterized in that, described PLA plastics are L-type poly(lactic acid) or D type poly(lactic acid), and its melting index under 190 DEG C/2.16kg condition is 5-30g/10min.
5. 3D as claimed in claim 1 prints PLA consumptive material, and it is characterized in that, described pigment is pigment dyestuff or mineral dye.
6. the 3D as described in any one of claim 1-5 prints the preparation method of PLA consumptive material, it is characterized in that, comprises the steps:
(1) recipe ingredient is taken
The formula printing PLA consumptive material according to 3D described in claim 1 takes described PLA plastics, pigment and auxiliary agent respectively;
(2) mixture is prepared
The described PLA plastics, pigment and the auxiliary agent that take in step (1) are put into high-speed mixer mixing 5-20min, mixes, obtain mixture;
(3) PLA colored plastic grain is prepared
The described mixture obtained in step (2) is added in twin screw extruder, extrudes through coupling, obtain PLA colored plastic grain;
(4) prepare 3D and print PLA consumptive material
The described PLA colored plastic grain obtained in step (3) is added 3D twine machine, prepares 3D and print PLA consumptive material.
7. 3D as claimed in claim 6 prints PLA consumptive material preparation method, it is characterized in that, in step (3), the processing condition of described twin screw extruder are: extrusion temperature is 200-230 DEG C, the length-to-diameter ratio of twin screw extruder is 40:1 ~ 52:1, and the rotating speed of twin screw extruder is 300-550rpm.
8. 3D as claimed in claim 6 prints PLA consumptive material preparation method, it is characterized in that, in step (4), the cross section that described 3D prints PLA consumptive material is circular, and the diameter that described 3D prints PLA consumptive material is 1.7-1.8mm.
9. 3D as claimed in claim 6 prints PLA consumptive material preparation method, it is characterized in that, in step (4), the cross section that described 3D prints PLA consumptive material is circular, and the diameter that described 3D prints PLA consumptive material is 2.8-3.0mm.
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| CN105400118A (en) * | 2015-12-18 | 2016-03-16 | 南京林业大学 | Carbon nanotube modified 3D printing wire rod and preparation method thereof |
| CN106893277A (en) * | 2015-12-18 | 2017-06-27 | 四川鑫达企业集团有限公司 | A kind of inorganics filled biodegradable 3D printing consumptive material and preparation method thereof |
| CN107525885A (en) * | 2017-02-28 | 2017-12-29 | 中国科学院宁波材料技术与工程研究所 | The method for improving formula test efficiency |
| WO2018090801A1 (en) * | 2016-11-16 | 2018-05-24 | 金发科技股份有限公司 | Polylactic acid 3d printing wire rod and preparation method therefor |
| CN109880323A (en) * | 2019-02-20 | 2019-06-14 | 华南理工大学 | A kind of 3D printing composite material containing organic fluorescent dye and application |
| CN110240791A (en) * | 2019-06-11 | 2019-09-17 | 安徽三绿实业有限公司 | A kind of advertisement character 3D printing material and preparation method thereof |
| CN110654027A (en) * | 2018-06-30 | 2020-01-07 | 沙特基础工业全球技术公司 | Color matching for additive manufacturing |
| US11453776B2 (en) | 2018-06-15 | 2022-09-27 | Kingfa Sci. & Tech. Co., Ltd. | Polylactic acid 3D printing material and preparation method thereof |
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| CN105400118A (en) * | 2015-12-18 | 2016-03-16 | 南京林业大学 | Carbon nanotube modified 3D printing wire rod and preparation method thereof |
| CN106893277A (en) * | 2015-12-18 | 2017-06-27 | 四川鑫达企业集团有限公司 | A kind of inorganics filled biodegradable 3D printing consumptive material and preparation method thereof |
| CN105400118B (en) * | 2015-12-18 | 2018-06-26 | 南京林业大学 | A kind of carbon nano-tube modification 3D printing wire rod and preparation method thereof |
| WO2018090801A1 (en) * | 2016-11-16 | 2018-05-24 | 金发科技股份有限公司 | Polylactic acid 3d printing wire rod and preparation method therefor |
| CN107525885A (en) * | 2017-02-28 | 2017-12-29 | 中国科学院宁波材料技术与工程研究所 | The method for improving formula test efficiency |
| CN107525885B (en) * | 2017-02-28 | 2020-04-03 | 中国科学院宁波材料技术与工程研究所 | Method for improving formula test efficiency |
| US11453776B2 (en) | 2018-06-15 | 2022-09-27 | Kingfa Sci. & Tech. Co., Ltd. | Polylactic acid 3D printing material and preparation method thereof |
| CN110654027A (en) * | 2018-06-30 | 2020-01-07 | 沙特基础工业全球技术公司 | Color matching for additive manufacturing |
| CN109880323A (en) * | 2019-02-20 | 2019-06-14 | 华南理工大学 | A kind of 3D printing composite material containing organic fluorescent dye and application |
| CN110240791A (en) * | 2019-06-11 | 2019-09-17 | 安徽三绿实业有限公司 | A kind of advertisement character 3D printing material and preparation method thereof |
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Application publication date: 20150603 |