CN104140668A - High-fluidity powder material for selective laser sintering - Google Patents
High-fluidity powder material for selective laser sintering Download PDFInfo
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- CN104140668A CN104140668A CN201410363128.4A CN201410363128A CN104140668A CN 104140668 A CN104140668 A CN 104140668A CN 201410363128 A CN201410363128 A CN 201410363128A CN 104140668 A CN104140668 A CN 104140668A
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- 239000000843 powder Substances 0.000 title claims abstract description 84
- 239000000463 material Substances 0.000 title claims abstract description 47
- 238000000110 selective laser sintering Methods 0.000 title claims abstract description 32
- 239000002086 nanomaterial Substances 0.000 claims abstract description 41
- 239000004033 plastic Substances 0.000 claims abstract description 25
- 229920003023 plastic Polymers 0.000 claims abstract description 25
- 239000002105 nanoparticle Substances 0.000 claims abstract description 3
- 238000012986 modification Methods 0.000 claims description 20
- 230000004048 modification Effects 0.000 claims description 20
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 16
- 239000007822 coupling agent Substances 0.000 claims description 16
- 229920002530 polyetherether ketone Polymers 0.000 claims description 15
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 13
- 150000001408 amides Chemical class 0.000 claims description 7
- 239000004695 Polyether sulfone Substances 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 229920006393 polyether sulfone Polymers 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 5
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 5
- 239000002041 carbon nanotube Substances 0.000 claims description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 239000002134 carbon nanofiber Substances 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 4
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 4
- 229920006260 polyaryletherketone Polymers 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 238000005245 sintering Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 8
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000010146 3D printing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明公开了一种用于选择性激光烧结的高流动性粉体材料，包括塑料粉体和无机纳米材料，其中塑料粉体直径为40～150μm，无机纳米材料占总重量的0.01～5％；所述无机纳米材料为表面改性的无机纳米颗粒或者未改性无机纳米材料。本发明用于选择性激光烧结的高流动性粉体材料，向塑料粉体中加入少量改性或未改性的无机纳米材料，由于纳米材料结构特殊且处于热力学不稳定状态，具有独特的表面界面效应，可以显著增强粉体的流动性和粉末松装密度，更适合于SLS烧结；本发明用于选择性激光烧结的粉体材料对塑料粉体种类无特别要求，适用范围广。
The invention discloses a high-fluidity powder material for selective laser sintering, which includes plastic powder and inorganic nanometer material, wherein the diameter of the plastic powder is 40-150 μm, and the inorganic nanometer material accounts for 0.01-5% of the total weight ; The inorganic nanomaterials are surface-modified inorganic nanoparticles or unmodified inorganic nanomaterials. The high fluidity powder material used in the selective laser sintering of the present invention adds a small amount of modified or unmodified inorganic nano-materials to the plastic powder, and has a unique surface due to the special structure of the nano-materials and being in a thermodynamically unstable state. The interface effect can significantly enhance the fluidity and bulk density of the powder, which is more suitable for SLS sintering; the powder material used in the selective laser sintering of the present invention has no special requirements on the type of plastic powder and has a wide range of applications.
Description
Technical field
The invention belongs to 3D printing consumables field, relate to a kind of 3D printing powder, particularly a kind of high workability powder body material for selective laser sintering.
Background technology
Increasing material manufacturing technology and be called again " 3D printing technique ", is current new manufacture of being shown great attention to, and it is called as the gordian technique that promotes the Industrial Revolution for the third time together with robot technology, artificial intelligence technology.Selective laser sintering (SLS) is a very important technology during 3D prints.SLS technique is a kind of based on discrete/stack shaping principle, integrate the new technologies such as computer, numerical control, laser and novel material, selectively metal or nonmetallic powder material is carried out to the quick preparing product of sintering.The restriction that the required laser power of polymkeric substance SLS technology sintering is little, be not subject to part shape complexity, accurately fast restore design concept, directly the nearly fine and close part of machine-shaping, function test part, broken through the restriction of traditional manufacturing technology completely, obtains fast development in recent years.Kind, particle diameter, mobility and the loose density of SLS technique to agglomerated material has higher requirements, and the preparation of agglomerated material at present has become the key factor of SLS technique.
The method of preparing plastic microsphere mainly contains following several: 1) adopt direct letex polymerization, suspension polymerization as prepared polystyrene, vinylformic acid microballoon etc.; 2) precipitator method are prepared spherical powder (patent 201110313990.0 is prepared polymeric amide microballoon); 3) spray-drying process; 4) high bake (ZL200880014068 method more than tempering 30min under at least higher than the condition of 20 DEG C of Tg temperature improves the sphericity of material, thereby improves mobility); 5) add micron order filler (patent 200580009126 adopts and adds glass fibre or carbon fiber, obtains spherical powder) to plastics powder.
Aforesaid method 1)-3) exist strong to material selectivity, for the insoluble not melt material of some high-performance, as polyether-ether-ketone, polyimide etc. are difficult to applicable problem; 4) there is complex process, process control is required to high problem; 5) there is the problem of putting forward the high-intensity toughness that has simultaneously reduced product.Therefore be necessary to develop a kind of technique simple, powder body material there is to the method that can simultaneously improve powder fluidity, product strength and plasticity and toughness of universality.
Nanometer material structure is special, and surface plays pendulum, and has unique surface and interface effect, has the prospect of using very widely.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of powder body material for selective laser sintering of excellent combination property.
For achieving the above object, the invention provides following technical scheme:
For a high workability powder body material for selective laser sintering, comprise plastics powder and inorganic nano material, wherein plastics powder diameter is 40～150 μ m, inorganic nano material accounts for 0.01～5% of gross weight.
As the present invention for the high workability powder body material of selective laser sintering preferably, the inorganic nanoparticles that described inorganic nano material is surface modification.
As the present invention for the high workability powder body material of selective laser sintering preferably, the inorganic nano material that described inorganic nano material is surface modification and the mixture of unmodified inorganic nano material.
As the present invention for the high workability powder body material of selective laser sintering preferably, described plastics powder is polymeric amide, polycarbonate, polyimide, polyaryletherketone, polyethersulfone, polyphenylene sulfide, tetrafluoroethylene or polyether-ether-ketone powder.
As the present invention for the high workability powder body material of selective laser sintering preferably, described inorganic nano material is nanometer SiO
2, nanometer Al
2o
3, nano-TiO
2, nano-ZnO, nanometer ZrO
2, nanometer hydroxyapatite, carbon nanotube or carbon nanofiber.
As the present invention for the high workability powder body material of selective laser sintering preferably, described plastics powder diameter is 60～130 μ m, described inorganic nano material accounts for 1～3% of gross weight.
As the present invention for the high workability powder body material of selective laser sintering further preferably, the inorganic nano material of surface modification adopts silane coupling agent, titanate coupling agent, chromium complex coupling agent, zirconium coupling agent modification.
As the present invention for the high workability powder body material of selective laser sintering further preferably, modification coupling agent used is 0.5～5% of inorganic nano material amount.
Beneficial effect of the present invention is:
The present invention adds a small amount of modification or unmodified inorganic nano material for the high workability powder body material of selective laser sintering to plastics powder, because nanometer material structure is special and thermodynamic state is extremely unstable, there is unique surface-interface effect, very easily free movement between plastics powder body material, thereby significantly improve the mobility of powder, make it be more suitable for the sintering in SLS; The present invention has no special requirements to plastics powder kind for the powder body material of selective laser sintering, applied widely; The present invention adds the thermostability of inorganic nano material reinforced plastics in the time of sintering and improves, and shrinking percentage reduces, and is conducive to improve the dimensional stability of product; Adopt product that powder body material of the present invention is laser sintered obtained in the situation that shock strength remains unchanged or slightly rise, tensile strength, hardness, modulus, thermotolerance etc. are increased dramatically.
Brief description of the drawings
In order to make object of the present invention, technical scheme and beneficial effect clearer, the invention provides following accompanying drawing and describe:
Fig. 1 is the process flow sheet of the embodiment of the present invention 1 for the preparation of the high workability powder body material of selective laser sintering.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Following examples, by open a kind of high workability powder body material for selective laser sintering, comprise plastics powder and inorganic nano material, and wherein plastics powder diameter is 40～150 μ m, and inorganic nano material accounts for 0.01～5% of gross weight.
Especially, described inorganic nano material is surface modification inorganic nano material, unmodified inorganic nano material or the inorganic nano material of surface modification and the mixture of unmodified inorganic nano material.
Especially, described plastics powder is polymeric amide, polyimide, polyaryletherketone, polyethersulfone, polyphenylene sulfide, tetrafluoroethylene or polyether-ether-ketone powder.
Especially, described inorganic nano material is nanometer SiO
2, nanometer Al
2o
3, nano-TiO
2, nano-ZnO, nanometer ZrO
2, nanometer hydroxyapatite, carbon nanotube or carbon nanofiber.
Especially, the inorganic nano material of surface modification adopts silane coupling agent, titanate coupling agent, chromium complex coupling agent, zirconium coupling agent modification.
Especially, described plastics powder diameter is 60～130 μ m, and described inorganic nano material accounts for 1～4% of gross weight, and described modification coupling agent is 0.5～5% of inorganic nano material content.
Embodiment 1:
The present embodiment comprises the following steps for the preparation of the method for the high workability powder body material of selective laser sintering:
1) select 97 parts of polyether-ether-ketone powders that mean diameter is 70 μ m, 3 parts of nanometer SiO
2;
2) by step 1) selected nanometer SiO
2be dispersed in ethanolic soln, stir 30min and add 0.15 part of silane coupling agent after evenly, suction filtration after continuation stirring 30min, dries to constant weight;
3) by step 1) selected polyether-ether-ketone powder, step 2) the nanometer SiO of modification
2be mixed to get required composite granule by mechanical stirring.
Embodiment 2:
The present embodiment for the preparation of the method for the high workability powder body material of selective laser sintering as shown in Figure 1, comprises the following steps:
1) select 95 parts of polymeric amide powders that mean diameter is 120 μ m, 5 parts of nanometer SiO
2with nanometer Al
2o
3mixture;
2) by 3 parts of steps 1) selected nanometer SiO
2add in ethanolic soln with 0.05 part of silane coupling agent, then adopt high-energy ultrasonic wave (20kHz, 4000W) to process filtering ethanol after 3h, wash 3-5 time, be dried and obtain modified Nano SiO
2;
3) by step 1) selected polymeric amide powder, step 2) the nanometer SiO of modification
2with step 1) unmodified nanometer SiO
2be mixed to get required composite granule.
Embodiment 3:
The present embodiment comprises the following steps for the preparation of the method for the high workability powder body material of selective laser sintering:
1) select 96 parts of polyethersulfone powders that mean diameter is 40 μ m, 4 parts of nano TiO
2and carbon nanotube mixture;
2) by step 1) selected polyethersulfone powder and nanometer SiO
2be mixed to get required composite granule by mechanical stirring.
Composite granule performance test to embodiment 1 gained also compares with the polyether-ether-ketone powder that does not add nano material, and result is as shown in table 1:
Table 1 embodiment 1 composite granule and pure PEEK powder performance comparison
| Performance index | Pure PEEK powder | Add 3%SiO 2PEEK powder |
| Pressure Drop, PD 15.2(mbar) | 3.87 | 2.23 |
| Basic Flow kinetic energy, BFE (mJ) | 39.5 | 25.6 |
| Activation energy, AE (mJ) | <5mJ | <5mJ |
| Flow function, FF | 3.13 | 8.21 |
| Tap density, CBD (g/ml) | 0.24 | 0.244 |
As can be seen from Table 1, the ventilation property that embodiment 1 adds the PEEK powder of 3% silicon-dioxide is better than pure PEEK sample (the purer PEEK powder of its Pressure Drop declines 1/3), this for hopper in 3D print procedure flow, gas delivery and filling more favourable; Basic Flow kinetic energy (BFE) numerical value of the PEEK powder of embodiment 1 will be significantly less than pure PEEK sample, and activation energy <5mJ between its particle, can avoid powder to reunite, and is conducive to filling and screening process; The FF value of embodiment 1 gained powdered sample is 8.21, belongs to and comparatively holds runny rank, while avoiding by hopper, easily stops up; In addition, embodiment 1 adds a small amount of SiO
2the tap density of rear material also increases.
The present invention adds a small amount of modification or unmodified inorganic nano material for the high workability powder body material of selective laser sintering to plastics powder, because nanometer material structure is special and in thermodynamic instability state, there is unique surface-interface effect, can significantly strengthen mobility and the apparent density of powder of powder, be more suitable for the sintering in SLS.
It should be noted that, in above-described embodiment, plastics powder diameter is 40～150 μ m, inorganic nano material accounts for 0.01～5% of gross weight, plastics powder is that plastics powder is one or more in polymeric amide, polycarbonate, polyimide, polyaryletherketone, polyethersulfone, polyphenylene sulfide or polytetrafluoroethylpowder powder or polyether-ether-ketone, and inorganic nano material is nanometer SiO
2, nanometer Al
2o
3, nano-TiO
2, nano-ZnO, nanometer ZrO
2, one or more in nanometer hydroxyapatite, carbon nanotube or carbon nanofiber, coupling agent is a kind of in silane coupling agent, titanate coupling agent, chromium complex coupling agent, zirconium coupling agent modification or all has good effect when multiple.
Finally explanation is, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the claims in the present invention book limited range.
Claims (8)
1. for a high workability powder body material for selective laser sintering, it is characterized in that: comprise plastics powder and inorganic nano material, wherein plastics powder diameter is 40～150 μ m, and inorganic nano material accounts for 0.01～5% of gross weight.
2. according to claim 1 for the high workability powder body material of selective laser sintering, it is characterized in that: the inorganic nanoparticles that described inorganic nano material is surface modification.
3. according to claim 1 for the high workability powder body material of selective laser sintering, it is characterized in that: the inorganic nano material that described inorganic nano material is surface modification and the mixture of unmodified inorganic nano material.
4. according to the high workability powder body material for selective laser sintering described in claim 1-3 any one, it is characterized in that: described plastics powder is polymeric amide, polycarbonate, polyimide, polyaryletherketone, polyethersulfone, polyphenylene sulfide, tetrafluoroethylene or polyether-ether-ketone powder.
5. according to the high workability powder body material for selective laser sintering described in claim 1-3 any one, it is characterized in that: described inorganic nano material is nanometer SiO
2, nanometer Al
2o
3, nano-TiO
2, nano-ZnO, nanometer ZrO
2, nanometer hydroxyapatite, carbon nanotube or carbon nanofiber.
6. according to the high workability powder body material for selective laser sintering described in claim 1-3 any one, it is characterized in that: described plastics powder diameter is 60～130 μ m, and described inorganic nano material accounts for 1～3% of gross weight.
7. according to the high workability powder body material for selective laser sintering described in claim 2 or 3, it is characterized in that: the inorganic nano material of surface modification adopts silane coupling agent, titanate coupling agent, chromium complex coupling agent, zirconium coupling agent modification.
8. according to the high workability powder body material for selective laser sintering described in claim 2 or 3, it is characterized in that: modification coupling agent used is 0.5～5% of inorganic nano material amount.
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061989A (en) * | 2015-09-02 | 2015-11-18 | 广东银禧科技股份有限公司 | A polyether ether ketone/nano hydroxyapatite composite material for SLS technology and its preparation method |
| CN105860431A (en) * | 2016-04-13 | 2016-08-17 | 汪艳 | Polyether ether ketone/multi-walled carbon nanotube composite powder material used for selective laser sintering technology, and preparation method thereof |
| CN105860521A (en) * | 2016-04-13 | 2016-08-17 | 万达集团股份有限公司 | Selective laser sintering-based polyimide powder material and preparation method thereof |
| CN106009430A (en) * | 2016-06-13 | 2016-10-12 | 衢州学院 | Polytetrafluoroethylene powder material based on selective laser sintering and preparation method thereof |
| CN106243622A (en) * | 2016-09-27 | 2016-12-21 | 广东银禧科技股份有限公司 | Carbon nanotube/polyether ether ketone composite powder material and preparation method for SLS |
| CN106380847A (en) * | 2016-09-23 | 2017-02-08 | 江西师范大学 | Method for preparing laser sintering molded three-dimensional (3D) printing polyimide/polyether sulfone/nano carbon powder consumable |
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