CN107446347A - A kind of 3D printing PA12/PA66 alloy material powder - Google Patents
A kind of 3D printing PA12/PA66 alloy material powder Download PDFInfo
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- CN107446347A CN107446347A CN201610381000.XA CN201610381000A CN107446347A CN 107446347 A CN107446347 A CN 107446347A CN 201610381000 A CN201610381000 A CN 201610381000A CN 107446347 A CN107446347 A CN 107446347A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Abstract
The invention belongs to 3D printing technique field, more particularly, to a kind of selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies and preparation method thereof；Described selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies, are made by the raw material of following weight parts：600 ~ 800 parts of PA12 raw materials, 200 ~ 400 parts of PA66 raw materials, 0 ~ 15 part of light absorber, 0 ~ 10 part of flow promortor, 5 ~ 10 parts of antioxidant, 0 ~ 20 part of black masterbatch；The present invention carries out physical blending, the method extruded by adding PA66 in PA12, the PA12/PA66 alloy materials of preparation, there is the characteristics of cost is low, there is outstanding mechanical property again, compared with traditional PA12 materials, the tensile strength and flexural strength for printing product are strengthened, and warpage is reduced caused by printing.
Description
Technical field
The invention belongs to SLS 3D printing technique fields, are used more particularly, to a kind of selective laser sintering 3D printing
PA12/PA66 high polymer alloy powder supplies and preparation method thereof.
Background technology
Selective laser sintering (Selective Laser Sintering, abbreviation SLS) rapid shaping technique is to utilize powder
The principle that powder material sinters under laser irradiation, under the control of the computer layer upon layer shaping.Almost can be into using the technology
The product of type random geometry, including mould of various complicated shapes required in industrial production etc.；The technology can be applied
The non-constant width of material ranges, including macromolecule, ceramics, metal and various composites etc..The article that 3D printer can manufacture
A lot, such as aircraft, pistol, food, human organ, toy for children etc. for another example.3D printing technique is world's manufacture over the past two decades
Important breakthrough of technical field, it is the multidisciplinary technology such as mechanical engineering, computer technology, Numeric Control Technology, material science
It is integrated.Wherein, the exploitation that most crucial technology is printed material is most difficult in 3D printing technique, therefore is developed more various multi-functional
3D printing material turn into the focus of future studies and application with it is crucial.
In nylon material, because PA12 has extremely low hydroscopicity, excellent mechanical strength, wear-resisting, antifriction and good
Corrosion resistant performance and processability etc., in the development of 3D printing new product, the production etc. of Making mold, be pilot
With bright prospects.In terms of the 3D printing technique of existing related PA12 materials is mainly based upon selective laser sintering, selection
Property laser sintering technology (SLS) be using infrared laser sintered powder material shaping a kind of rapid shaping technique.The technology can
Solid powder material is directly formed to Three-dimensional Entity Components, not limited by forming part complex-shaped degree, is not required to any
Moulds of industrial equipment.There are bright prospects in the production etc. of the development of new product, Making mold, be pilot, it is external
Existing substantial amounts of application example.
However, because PA12 mechanical property is poor, for the high functor of performance requirement, PA12 is in intensity, modulus, warm
Deformation temperature etc. needs further to improve.Existing PA12 materials are carried out further therefore, it is necessary to provide
Improve, to solve the above problems.
The content of the invention
For above technical problem, the present invention has designed and developed a kind of selective laser sintering 3D printing PA12/PA66
High polymer alloy powder supplies and preparation method thereof.Physical blending, the method extruded, system are carried out by adding PA66 in PA12
Standby PA12/PA66 alloy materials, i.e., with cost it is low the characteristics of, there is outstanding mechanical property again, with traditional PA12 materials
Compare, the tensile strength and flexural strength for printing product are strengthened, and warpage is reduced caused by printing.
To reach above-mentioned purpose, the present invention provides following technical scheme：
A kind of selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies, by the raw material of following weight parts
It is made：600 ~ 800 parts of PA12 raw materials, 200 ~ 400 parts of PA66 raw materials, 0 ~ 15 part of light absorber, 0 ~ 10 part of flow promortor, antioxidant
5 ~ 10 parts, 0 ~ 20 part of black masterbatch.
Preferably, the optimal composition of the 3D printing PA12/PA66 high polymer alloy powder supplies is：PA12 raw materials
800 parts, 200 parts of PA66 raw materials, 5 parts of flow promortor, 8 parts of antioxidant, 20 parts of black masterbatch.
The preparation method of above-mentioned 3D printing PA12/PA66 high polymer alloy powder supplies, including step in detail below：
Step 1：Prepare PA12 raw materials, PA66 raw materials, light absorber, flow promortor and antioxidant, each raw material stoving is standby, make
Each raw aqueous rate is less than 0.05%；
Step 2：600 ~ 800 parts of PA12 raw materials are weighed according to parts by weight, 200 ~ 400 parts of PA66 raw materials, 0 ~ 15 part of light absorber, are resisted
5 ~ 10 parts of oxygen agent, 0 ~ 20 part of black masterbatch；
Step 3：PA12 raw materials, PA66 raw materials, antioxidant, the black masterbatch that step 2 is weighed add high mixer and mixed 10 minutes；
Step 4：The compound obtained in step 3 is extruded with double screw extruder, is granulated, double-screw extruder screw is straight
Footpath is 75mm, draw ratio 45：1, extruder temperature is set as successively：One 185 ~ 195 DEG C of area, two 195 ~ 205 DEG C of areas, 3rd area
205 ~ 215 DEG C, four 215 ~ 225 DEG C of areas, five 225 ~ 235 DEG C of areas, six 235 ~ 245 DEG C of areas, seven 245 ~ 255 DEG C of areas, eight areas 245 ~
255 DEG C, nine 245 ~ 255 DEG C of areas, 245 ~ 255 DEG C of head temperature；
Step 5：PA12/PA66 high polymer alloy powder is obtained with the method for deep cooling crush：It is first that i.e. pellet is low in liquid nitrogen
Temperature is refrigerated to -70 ~ -120 DEG C, is allowed to realize brittle easily crushing state, then the PA12/PA66 high molecule alloy materials that will be freezed
Put into Lowtemperaturepulverizer cavity, by impeller, rotation carries out crushing and processing at a high speed；
Step 6：The PA12/PA66 high molecule alloy material powder that step 5 obtains is classified and collected by airflow shifting machine,
High polymer alloy powder of the granularity in the range of 200 ~ 400 mesh is selected, the bulky material for being not reaching to fineness requirement is returned into material
Continue to crush in storehouse；
Step 7：PA12/PA66 high polymer alloys powder that step 6 obtains and 0 ~ 10 part of flow promortor are fed into high mixer
High speed mixes ten minutes, you can to available for selective laser sintering 3D printing PA12/PA66 alloy materials.
Beneficial effects of the present invention are：
The selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies of the present invention, by PA12 former materials
A certain amount of PA66 raw materials are added in material to optimize material, and add the flow promortor, antioxidant, black of rational proportion
Mother, make the product that 3D printing comes out that there is relatively low cost, while effectively raise the mechanical property of material, reduce material
Shrinkage factor, reduce printing caused by warpage.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies, by the raw material of following weight parts
It is made：800 parts of PA12 raw materials, 200 parts of PA66 raw materials, 5 parts of flow promortor, 8 parts of antioxidant, 20 parts of black masterbatch；It is specifically made
Preparation Method step is：
Step 1：Prepare PA12 raw materials, PA66 raw materials, flow promortor, antioxidant, black masterbatch, each raw material stoving is standby, make each
Raw aqueous rate is less than 0.05%；
Step 2：800 parts of PA12 raw materials, 200 parts of PA66 raw materials, 8 parts of antioxidant, 20 parts of black masterbatch are weighed according to parts by weight；
Step 3：PA12 raw materials, PA66 raw materials, antioxidant, the black masterbatch that step 2 is weighed put into high-speed mixer and mixing 10 minutes
It is standby；
Step 4：The compound obtained in step 3 is extruded with double screw extruder, is granulated.Double-screw extruder screw
A diameter of 75mm, draw ratio 45：1, extruder temperature is set as successively：One 195 DEG C of area, two 205 DEG C of areas, three 215 DEG C of areas,
Four 225 DEG C of areas, five 235 DEG C of areas, six 235 DEG C of areas, seven 245 DEG C of areas, eight 255 DEG C of areas, nine 255 DEG C of areas, 245 DEG C of head temperature；
Step 5：PA12/PA66 alloy material powder is obtained with the method for deep cooling crush：First by i.e. pellet low temperature in liquid nitrogen
- 70 ~ -120 DEG C are refrigerated to, is allowed to realize brittle easily crushing state, then the PA12/PA66 high molecule alloy materials freezed are thrown
Enter in Lowtemperaturepulverizer cavity, by impeller, rotation carries out crushing and processing at a high speed；
Step 6：The PA12/PA66 alloy material powder that step 5 obtains is classified and collected by airflow shifting machine, selects grain
The PA12/PA66 high polymer alloy powder spent in the range of 200 ~ 400 mesh, the bulky material for being not reaching to fineness requirement is returned
Feed bin continues to crush；
Step 7：PA12/PA66 alloy materials powder that step 6 obtains and 5 parts of flow promortors are fed into high mixer high speed
Mixing, you can to available for selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies.
Embodiment 2
A kind of selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies, by the raw material of following weight parts
It is made：700 parts of PA12 raw materials, 300 parts of PA66 raw materials, 5 parts of flow promortor, 8 parts of antioxidant, 20 parts of black masterbatch；It is specifically made
Preparation Method step is：
Step 1：PA12 raw materials, prepare PA66 raw materials, flow promortor, antioxidant, black masterbatch, each raw material stoving is standby, make each
Raw aqueous rate is less than 0.05%；
Step 2：700 parts of PA12 raw materials, 300 parts of PA66 raw materials, 8 parts of antioxidant, 20 parts of black masterbatch are weighed according to parts by weight；
Step 3：PA12 raw materials, PA66 raw materials, antioxidant, the black masterbatch that step 2 is weighed put into high-speed mixer and mixing 10 minutes
It is standby；
Step 4：The compound obtained in step 3 is extruded with double screw extruder, is granulated.Double-screw extruder screw
A diameter of 75mm, draw ratio 45：1, extruder temperature is set as successively：One 195 DEG C of area, two 205 DEG C of areas, three 215 DEG C of areas,
Four 225 DEG C of areas, five 235 DEG C of areas, six 235 DEG C of areas, seven 245 DEG C of areas, eight 255 DEG C of areas, nine 255 DEG C of areas, 245 DEG C of head temperature；
Step 5：PA12/PA66 alloy material powder is obtained with the method for deep cooling crush：First by i.e. pellet low temperature in liquid nitrogen
- 70 ~ -120 DEG C are refrigerated to, is allowed to realize brittle easily crushing state, then the PA12/PA66 high molecule alloy materials freezed are thrown
Enter in Lowtemperaturepulverizer cavity, by impeller, rotation carries out crushing and processing at a high speed；
Step 6：The PA12/PA66 alloy material powder that step 5 obtains is classified and collected by airflow shifting machine, selects grain
The PA12/PA66 high polymer alloy powder spent in the range of 200 ~ 400 mesh, the bulky material for being not reaching to fineness requirement is returned
Feed bin continues to crush；
Step 7：PA12/PA66 high polymer alloys powder that step 6 obtains and 5 parts of flow promortors are fed into high mixer high
Speed mixing, you can to available for selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies.
Embodiment 3
A kind of selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies, by the raw material of following weight parts
It is made：750 parts of PA12 raw materials, 250 parts of PA66 raw materials, 5 parts of flow promortor, 8 parts of antioxidant, 10 parts of light absorber；Its is specific
Preparation method step is：
Step 1：Prepare PA12 raw materials, PA66 raw materials, flow promortor, antioxidant, light absorber, each raw material stoving is standby, make
Each raw aqueous rate is less than 0.05%；
Step 2：750 parts of PA12 raw materials, 250 parts of PA66 raw materials, 8 parts of antioxidant, 10 parts of light absorber are weighed according to parts by weight；
Step 3：PA12 raw materials that step 2 weighs, PA66 raw materials, antioxidant, light absorber input high-speed mixer and mixing 10 are divided
Clock is standby；
Step 4：The compound obtained in step 3 is extruded with double screw extruder, is granulated.Double-screw extruder screw
A diameter of 75mm, draw ratio 45：1, extruder temperature is set as successively：One 195 DEG C of area, two 205 DEG C of areas, three 215 DEG C of areas,
Four 225 DEG C of areas, five 235 DEG C of areas, six 235 DEG C of areas, seven 245 DEG C of areas, eight 255 DEG C of areas, nine 255 DEG C of areas, 245 DEG C of head temperature；
Step 5：PA12/PA66 alloy material powder is obtained with the method for deep cooling crush：First by i.e. pellet low temperature in liquid nitrogen
- 70 ~ -120 DEG C are refrigerated to, is allowed to realize brittle easily crushing state, then the PA12/PA66 alloy materials freezed are put into low temperature
In crusher cavity, by impeller, rotation carries out crushing and processing at a high speed；
Step 6：The PA12/PA66 alloy material powder that step 5 obtains is classified and collected by airflow shifting machine, selects grain
The PA12/PA66 high polymer alloy powder spent in the range of 200 ~ 400 mesh, the bulky material for being not reaching to fineness requirement is returned
Feed bin continues to crush；
Step 7：PA12/PA66 high molecule alloy materials powder that step 6 obtains and 5 parts of flow promortors are fed into high mixer
High speed mixes, you can to available for selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies.
Improvement further is optimized to the preparation process of composite kind in the present embodiment, and it is right in preparation process
Creation Sexual behavior mode is carried out in wherein each processing step and parameter, it is fully matched mixing, therefore, made of in embodiment 3
Composite compares the mechanical property for effectively raising material in performance, reduces the shrinkage factor of material, is produced when reducing printing
Raw warpage.
Effect analysis
| Flexural strength（MPa） | Tensile strength (MPa) | |
| Conventional PA12 | 15 | 19 |
| Embodiment 1 | 39.2 | 45 |
| Embodiment 2 | 53.8 | 59.4 |
| Embodiment 3 | 47.1 | 54.5 |
The selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies of the present invention, by PA12 raw materials
It is middle to add a certain amount of PA66 raw materials, and the auxiliary materials such as rational proportion flow promortor, antioxidant, light absorber are added, make choosing
The article that the laser sintered 3D printing of selecting property comes out has than less expensive low cost, and effectively raises the mechanical property of material
Can, the shrinkage factor of material is reduced, reduces warpage caused by printing.
Finally, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although passing through above-described embodiment
The present invention is described in detail, it is to be understood by those skilled in the art that can be right in the form and details
It makes various changes, without departing from claims of the present invention limited range.
Claims (5)
1. a kind of selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies, it is characterised in that by following
The raw material of parts by weight is made：600 ~ 800 parts of PA12 raw materials, 200 ~ 400 parts of PA66 raw materials, 0 ~ 15 part of light absorber, flow promortor 0
~ 10 parts, 5 ~ 10 parts of antioxidant, 0 ~ 20 part of black masterbatch.
2. a kind of selective laser sintering 3D printing according to claim 1 is consumed with PA12/PA66 high polymer alloys powder
Material, it is characterised in that：Antioxidant is selected from four ［ β-(3,5-di-t-butyl-4-hydroxy phenyl) propionic acid ］ pentaerythritol esters, and β-
（3.5-di-t-butyl-4-hydroxy phenyl）Propionic acid octadecanol fat, N, N '-bis--3-(3,5-di-t-butyl-4-
Hydroxy phenyl) propiono ］ hexamethylene diamine or three（2,4-di-tert-butyl-phenyl）One or more in phosphite ester.
3. a kind of selective laser sintering 3D printing according to claim 1 is consumed with PA12/PA66 high polymer alloys powder
Material, it is characterised in that：Light absorber is one in benzophenone class, benzotriazole, group-substituted acrylonitrile, hindered amines light absorber
Kind or more than one.
4. a kind of selective laser sintering 3D printing according to claim 1 is consumed with PA12/PA66 high polymer alloys powder
Material, it is characterised in that：Flow promortor is nano aluminium oxide, nano calcium oxide, nanometer silicon carbide, one kind in nano silicon
Or more than one.
5. a kind of selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies and preparation method thereof, it is special
Sign is to comprise the following steps：
Step 1：Prepare PA12 raw materials, PA66 raw materials, light absorber, flow promortor and antioxidant, black masterbatch, PA12 raw materials are dried
It is dry standby, each raw aqueous rate is less than 0.05%；
Step 2：600 ~ 800 parts of PA12 raw materials are weighed according to parts by weight, 200 ~ 400 parts of PA66 raw materials, 0 ~ 15 part of light absorber, are resisted
5 ~ 10 parts of oxygen agent, 0 ~ 20 part of black masterbatch；
Step 3：PA12 raw materials, PA66 raw materials, antioxidant, light absorber, the black masterbatch that step 2 is weighed mix 10 minutes；
Step 4：The compound obtained in step 3 is granulated with double screw extruder, double-screw extruder screw is a diameter of
75mm, draw ratio 45：1, extruder temperature is set as successively：One 185 ~ 195 DEG C of area, two 195 ~ 205 DEG C of areas, three areas 205 ~
215 DEG C, four 215 ~ 225 DEG C of areas, five 225 ~ 235 DEG C of areas, six 235 ~ 245 DEG C of areas, seven 245 ~ 255 DEG C of areas, eight areas 245 ~ 255
DEG C, nine 245 ~ 255 DEG C of areas, 245 ~ 255 DEG C of head temperature；
Step 5：PA12/PA66 high polymer alloy powder supplies are obtained with the method for deep cooling crush：First by i.e. pellet in liquid nitrogen
Middle cryogenic freezing is allowed to realize brittle easily crushing state, then the PA12/PA66 high polymer alloys that will be freezed to -70 ~ -120 DEG C
In material input Lowtemperaturepulverizer cavity, by impeller, rotation carries out crushing and processing at a high speed；
Step 6：The PA12/PA66 high polymer alloy powder that step 5 obtains is classified and collected by airflow shifting machine, is selected
PA12/PA66 high molecule alloy material powder of the granularity in the range of 200 ~ 400 mesh, will be not reaching to the thick thing of fineness requirement
Material, which returns to feed bin, to be continued to crush；
Step 7：PA12/PA66 alloy materials powder that step 6 obtains and 0 ~ 10 part of flow promortor are fed into high mixer
Mixed at high speed, you can to available for selective laser sintering 3D printing PA12/PA66 high polymer alloy powder supplies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381000.XA CN107446347A (en) | 2016-06-01 | 2016-06-01 | A kind of 3D printing PA12/PA66 alloy material powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381000.XA CN107446347A (en) | 2016-06-01 | 2016-06-01 | A kind of 3D printing PA12/PA66 alloy material powder |
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| Publication Number | Publication Date |
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| CN107446347A true CN107446347A (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610381000.XA Pending CN107446347A (en) | 2016-06-01 | 2016-06-01 | A kind of 3D printing PA12/PA66 alloy material powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113462924A (en) * | 2021-06-18 | 2021-10-01 | 中国地质大学（武汉） | Titanium-plated diamond copper composite material and preparation method thereof |
-
2016
- 2016-06-01 CN CN201610381000.XA patent/CN107446347A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113462924A (en) * | 2021-06-18 | 2021-10-01 | 中国地质大学（武汉） | Titanium-plated diamond copper composite material and preparation method thereof |
| CN113462924B (en) * | 2021-06-18 | 2022-03-29 | 中国地质大学（武汉） | Titanium-plated diamond copper composite material and preparation method thereof |
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