CN108299798A - A kind of 3D room temperature printing pastes and preparation method thereof - Google Patents
A kind of 3D room temperature printing pastes and preparation method thereof Download PDFInfo
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- CN108299798A CN108299798A CN201810076914.4A CN201810076914A CN108299798A CN 108299798 A CN108299798 A CN 108299798A CN 201810076914 A CN201810076914 A CN 201810076914A CN 108299798 A CN108299798 A CN 108299798A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
- B02C17/08—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with containers performing a planetary movement
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention relates to a kind of 3D room temperature to print pastes and preparation method thereof, belongs to 3D printing technique field.The technical problem to be solved by the present invention is to provide the preparation methods that a kind of 3D room temperature prints pastes.This method adds polymer powder and soda ash solution, a small amount of water-reducing agent, paste 3D printing polymer/slag micropowder moulding material is made under cryogenic by slag micropowder and epoxy resin, epoxy propane butyl ether by planetary ball mill ball milling.In printing, the solidification of paste moulding material is reacted dependent on the normal temperature cure of itself, laser or ultraviolet light need not be used to cure layer by layer, simple for process.And the potential hydraulically active performance that slag micropowder itself is excellent, the curing reaction under soda ash solution effect rapidly is injected on platform just by nozzle, setting rate is fast, printing can be realized under room temperature, and the precision for printing product is promoted.
Description
Technical field
The present invention relates to a kind of 3D room temperature to print pastes and preparation method thereof, belongs to 3D printing technique field.
Background technology
One kind of 3D printing, that is, rapid shaping technique, it be one kind based on digital model file, with powdered gold
Belong to or the adhesive materials such as plastics, constructs the technology of object by layer-by-layer printing.3D printing is typically using number
Technologic material printer is realized.Often be used for modeling in fields such as mold manufacturing, industrial designs, after be gradually available for one
The direct manufacture of a little products has had using parts made of the printing of this technology.The technology is set in jewelry, footwear, industry
Meter, building, engineering and construction（AEC）, automobile, aerospace, dentistry and medical industries, education, GIS-Geographic Information System, building work
Journey, gun and other field are all applied.
3D printing technique can rapidly and precisely produce labyrinth zero using three-dimensional CAD model in an equipment
Part, to realize " freely manufacturing ", the limitation that solves the processing of traditional handicraft difficulty or can not process, and substantially reduce processing week
Phase.According to material stacking mode, 3D printing technique can be divided into photocuring in container, material injection, and binder sprays, and material squeezes
Pressing formation, powder bed sintering/fusing, piece are laminated into method, and oriented energy deposits seven kinds.
Application No. is the patents of invention of 201010530017.X to disclose a kind of material for rapid three dimensional printing forming
And preparation method thereof, rapid prototyping material includes modified powder materials A and binder B, wherein：The preparation of modified powder materials A：
Dusty material is added to the first solvent in ball mill or grinder and is ground, dusty material pretreatment material is obtained；Surface is lived
Property agent, lubricant, organic resin are gradually added in the second solvent, are dispersed with stirring 2~3h, obtain modification liquid；By dusty material
Pretreatment material is mixed with modification liquid, is put into grinder, room temperature mixed grinding, dry, is ground, is obtained modified powder materials
A；In use, 1 part of modified powder materials A and 0.01~0.07 part of binder B adapted.The invention material is fast as 3 D-printing
The shaping raw material of fast molding machine, can the effective rapid shaping on three-dimensional printer, can be applied to the three of a variety of different models
Tie up printer.But the patent still carries out 3D printing using powder.The shortcomings that method molding using powder progress 3D printing
It is to need specific ancillary equipment and the temperature higher than fusing point, this undoubtedly increases the cost of manufacture.Therefore, Yi Zhongjian
Single, quickly, normal temperature cure, lower-cost 3D printing technique is to be badly in need of.
Application No. is 201610231243.5 patents of invention to disclose a kind of novel hot setting 3D printing material, Ci Zhongcai
Material is grouped as two groups by A, B using thermosetting resin as basis material；Component A by liquid matrix resin, diluent, toughener,
Filler, deaeration agent and pigment composition, B component are made of curing agent or crosslinking agent, deaeration agent and filler；By component A, B component point
Then other materialization reaches misty mixed effect at tiny droplet, be finally deposited to printable layer, realizes thin layer printing；Due to fast
Speed solidification, when printing, which can reach to pile up layer by layer, does not trickle；Cure after can carrying out medium temperature to final products, improves intensity.Thus
The product surface of kind thermosetting property 3D printing file printing is smooth, and intensity is high.The patent is needed in printing by component A and B component
Then mixed aerosol is deposited to printable layer, method is complicated, and technology difficulty is larger.
Application No. is 201410182477.6 patents of invention to disclose a kind of 3D printing forming method, by polymer, helps
Agent and solvent mixing, obtain paste, and 3D printing is carried out using the paste, wherein being beaten again after the solvent volatilization of preceding layer
Print last layer.The method that the invention proposes is suitable for multiple polymers material, and due to the effect of solvent, is bonded without separately adding
Agent, so that it may to be directly used in 3D printing.Dissolving or swelling method are combined with 3D printing technique, melting temperature need not be heated to
Molding can be realized above, reduces energy consumption, saved cost.This method is simple, still, since there are the volatilization of solvent speed
The problems such as slow is spent, causes to print green body slow curing, intensity is insufficient and easily caves in, to influence printing effect and printing precision.
Invention content
For disadvantages described above, the object of the present invention is to provide it is a kind of only need the 3D room temperature of a small amount of solvent print pastes and
Preparation method, the pastes setting rate is fast, and printing can be realized under room temperature.
The technical problem to be solved by the present invention is to provide the preparation methods that a kind of 3D room temperature prints pastes.
The preparation method of 3D room temperature printing pastes of the present invention, the material being prepared are micro- based on polymer/slag
The 3D room temperature of powder prints pastes, and specific method includes the following steps:
A, ball milling：By slag micropowder, epoxy resin and epoxy propane butyl ether mixing, it is transferred to planetary ball mill ball milling, ball milling
It is less than 80 microns to grain size, obtains mixed powder；
B, prepared by pastes：The mixed powder that a steps are obtained and polymer powder, soda ash, water-reducing agent and water mixing, obtain 3D
Room temperature prints pastes
Wherein, the parts by weight of each raw material are：10~50 parts of slag micropowder, 30~50 parts of epoxy resin, epoxy propane butyl ether 5~
20 parts, 20~40 parts of polymer powder, 4~10 parts of soda ash, 3~8 parts of water-reducing agent, 20~50 parts of water.
Preferably, the parts by weight of each raw material are：20~40 parts by weight of slag micropowder, 35~46 parts by weight of epoxy resin, ring
11~17 parts by weight of Ethylene Oxide butyl ether, 24~36 parts by weight of polymer powder, 5~8 parts by weight of soda ash, 4~7 weight of water-reducing agent
Part, 30~40 parts by weight of water.
Preferably, the parts by weight of each raw material are：30 parts by weight of slag micropowder, 40 parts by weight of epoxy resin, epoxy
15 parts by weight of propane butyl ether, 32 parts by weight of polymer powder, 6 parts by weight of soda ash, 5 parts by weight of water-reducing agent, 38 parts by weight of water.
The step of a steps are mainly ball milling will be transferred to planetary ball mill and carry out ball milling after specific raw material mixing.Planet
Formula ball mill is mixing, fine grinding, prepared by sample, nano material is disperseed, new product development and small lot produce new and high technology material
Necessary devices.Its operation principle is rolled at a high speed in grinding pot with sample using abrasive material, and strong shear, punching are generated to material
It hits, roll and achieve the purpose that crushing, grinding, dispersion, emulsifying material.Planetary ball mill is filled on same turntable there are four ball milling
Tank, when turntable rotates, ball grinder surrounds Pivot Point Center rotation again while revolving round the sun around turntable shaft, makees planetary motion.Tank
Middle abrading-ball mutually collides in high-speed motion, grinds and mix sample.The product can use dry, wet two methods grinding and mangcorn
The product that degree is different, material is different, abrasive product minimum particle size can be to 0.1 micron.It can realize that various technological parameters are wanted well
It asks, simultaneously because the advantages of its small lot, low-power consumption, low price, therefore, ball milling of the invention is ground preferably in planetary ball mill
Middle progress preferably ensure that the powder diameter after ball milling is less than 80 microns.Commercially available planetary ball mill is suitable for this hair
It is bright.
" be milled to grain size and be less than 80 microns " described in a steps of the present invention can be realized by following concrete operations：It will
Material after ball milling crosses 150 mesh sieve, and oversize matter returns to ball milling process and continues ball milling, until all materials cross 150 mesh sieve, i.e.,
The powder that grain size is less than 80 microns can be obtained.The raw material of ball milling is slag micropowder, epoxy resin and epoxy propane butyl ether.
Wherein, slag micropowder is the powder after being ground by slag, and slag is byproduct during blast furnace ironmaking.
In ironmaking processes, iron oxide is reduced into metallic iron at high temperature, the impurity such as silica, aluminium oxide in iron ore and lime etc.
Reaction is generated with silicate and alumino-silicate fusant as main component, loose at quality, the porous shot-like particle by quenching,
As blast-furnace cinder, abbreviation slag.The present invention adds a certain amount of slag micropowder in 3D room temperature printing pastes, can reduce
Cost turns waste into wealth, and slag micropowder itself has excellent potential hydraulically active performance, and the mechanics that can improve printing product is strong
Degree.
Epoxy resin refers to the general name of a kind of polymer containing more than two epoxy groups in molecule.It is epoxy chloropropionate
Alkane and bisphenol-A or the polycondensation product of polyalcohol.Due to the chemism of epoxy group, can be made with a variety of compounds containing active hydrogen
Its open loop, solidification crosslinking generates reticular structure, therefore it is a kind of thermosetting resin.
Epoxy propane butyl ether is to be etherified through open loop with epoxychloropropane by butanol, then shrink through prepared by epoxidation sweet
Oily ether, in 3D room temperature of the present invention prints pastes, epoxy propane butyl ether can be used as epoxy active diluent use.It can join
With curing reaction, become a part for epoxy cross-linking web frame.
It is further preferred that in a steps, in order to preferably ensure the performance of pastes, it is preferred to use low temperature is planetary
Ball mill carries out ball milling.Planetary ball mill with air cooling device is equivalent to and configures a central air-conditioning to planetary ball mill, can give
Planetary ball mill offer continues 5 DEG C or so of cold wind, and the heat that grinding generates is taken away, and effectively controls the temperature of grinding pot, makes
The temperature of ball milling is not higher than 20 DEG C.
B step is by mixed powder, polymer powder, soda ash, water-reducing agent and water mixing, you can obtains 3D room temperature printing paste material
Routine techniques may be used in material, mixed method.
Wherein, various polymer materials may be used in polymer powder, including thermoplastic, polymeric materials and thermosetting property gather
Close object material.Thermoplastic polymer includes polyolefin, such as polyethylene, polypropylene, polybutene, polyisobutene, and makrolon gathers
Urethane, polyamide, polystyrene, polyvinyl chloride, polytetrafluoroethylene (PTFE), polyisoprene, polyformaldehyde, polyphenylene oxide, polysulfones, poly- acetic acid
Vinyl acetate, polymethyl acrylate, polymethyl methacrylate etc..Thermosetting polymer includes phenolic resin, Lauxite, trimerization
Cyanamide formaldehyde resin, epoxy resin, unsaturated-resin, polyurethane, polyimides, furane resins (furfural phenol resin, furfural third
Ketone resin, furfuryl alcohol resin) etc..In order to improve the performance that 3D room temperature prints pastes, it is further preferred that polymer powder is adopted
Use powders of thermoplastic polymers.Preferably, the polymer powder is polyethylene powders, polypropylene powder, poly- carbonic acid
Ester powder, polyurethane powder or polyamide powder.
In order to make polymer powder preferably be dispersed in pastes, to improve performance, it is preferred that the polymer
The grain size of powder is less than 80 microns.The prior art of the present invention may be used polymer powder is levigate, for example, using grinding, ball
Mill or other grinding modes, it is only necessary to ensure that the grain size of polymer powder is less than 80 microns, in actual production, only
Polymer powder need to be crossed to 180 mesh sieve, extracting screen underflow matter carries out being mixed with pastes, and oversize matter continues to return to crushing
Process crushes.
Soda ash, i.e. sodium carbonate, are the powder or particle of white odorless under room temperature, and aqueous solution is in strong basicity（pH=11.6）
And have certain corrosivity, metathesis reaction can occur with acid, also metathesis reaction can occur with some calcium salts, barium salt.At this
It invents in 3D room temperature printing pastes, soda ash solution can accelerate to cure, and in printing, which is injected in by nozzle
Curing reaction rapidly just occurs under soda ash solution effect on platform, so as to shorten hardening time, improves the strong of printing product
Degree and performance.
Preferably, in b step, first soda ash and water are mixed, are made soda ash solution, then by mixed powder, polymer
Powder, water-reducing agent and soda ash solution mixing.
Water-reducing agent is commonly used in concrete, is a kind of under conditions of maintaining concrete slump to be basically unchanged, and can be reduced
The concrete admixture of mixing water amount.Belong to anion surfactant mostly, there is lignosulfonates, naphthalene sulphonate formaldehyde
Polymer etc..There is peptizaiton to cement granules after concrete mix is added, its workability can be improved, reduces flat water
Amount, improves the mobility of concrete mix；Or unit cement consumption is reduced, save cement.3D room temperature of the present invention prints paste
Water-reducing agent is added in material, the intensity of product after printing can be improved, while improving the mobility of pasty mass.Preferably, institute
It is lignin sulfonate water-reducing agent, naphthalenesulfonate water-reducing agent or polycarboxylate water-reducer to state water-reducing agent.It is further preferred that institute
It is polycarboxylate water-reducer to state water-reducing agent.
Second technical problem that the present invention solves is to provide a kind of 3D room temperature printing pastes.
3D room temperature of the present invention prints pastes, is prepared by above-mentioned preparation method.Specific component and content
Composition and specific preparation method so that material of the invention in printing, can normal temperature cure, and the auxiliary phase of each group split-phase
At synergistic so that the setting rate of the pastes is fast, can realize printing at normal temperatures, and the precision for printing product is good,
High mechanical properties.
Compared with prior art, the present invention has the advantages that：
The present invention proposes a kind of 3D room temperature printing pastes and preparation method based on polymer/slag micropowder, in low temperature item
Slag micropowder and epoxy resin, epoxy propane butyl ether are added into polymer powder by planetary ball mill ball milling under part
And soda ash solution, a small amount of water-reducing agent, paste 3D printing polymer/slag micropowder moulding material is made.Printing when paste at
The solidification of proximate matter material is reacted dependent on the normal temperature cure of itself, laser or ultraviolet light need not be used to cure layer by layer, simple for process.
And the potential hydraulically active performance that slag micropowder itself is excellent, by nozzle be injected on platform just rapidly soda ash solution effect under
Curing reaction, setting rate is fast, printing can be realized under room temperature, and the precision for printing product is promoted.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A kind of 3D room temperature printing pastes, raw material group become：10 parts by weight of slag micropowder, 50 parts by weight of epoxy resin, ring
20 parts by weight of Ethylene Oxide butyl ether, 20 parts by weight of polymer powder, 4 parts by weight of soda ash, 3 parts by weight of water-reducing agent, 20 parts by weight of water.
Wherein, the polymer powder is polyethylene powders, and the grain size of the polymer powder is less than 80 microns.The water-reducing agent is wood
Mahogany sulfonate class water-reducing agent.The preparation method that the material uses is as follows：
A, ball milling：The slag micropowder, epoxy resin and epoxy propane butyl ether of above-mentioned parts by weight, mixing is taken to be transferred to low temperature planet
Formula ball mill carries out ball milling, and the temperature for controlling ball milling is not higher than 20 DEG C, after ball milling, and resulting materials are crossed 180 mesh sieve, oversize matter
It returns to low temp planetary ball mill and continues ball milling, until all substances cross 180 mesh sieve, screenings matter is mixed, is obtained
Grain size is less than 80 microns of mixed powder, spare.
B, the preparation of soda ash solution：The soda ash of above-mentioned parts by weight and water are mixed, soda ash solution is obtained, it is spare.
C, prepared by pastes：The soda ash solution that mixed powder that a steps obtain, b step are obtained and above-mentioned parts by weight
Polymer powder and water-reducing agent mixing, obtain 3D room temperature printing pastes.
After tested, the resting period of 3D room temperature printing pastes is 150min, there is certain resting period, and is printed
Setting time afterwards is 60s, and setting rate is fast, so that material is unlikely to slump and can not complete accumulation, be superimposed and form 3D printing
Effect, the precision for printing product is high.The tensile strength of product is 1.51MPa after printing, and mechanical property is good.
Embodiment 2
A kind of 3D room temperature printing pastes, raw material group become：50 parts by weight of slag micropowder, 30 parts by weight of epoxy resin, ring
5 parts by weight of Ethylene Oxide butyl ether, 40 parts by weight of polymer powder, 10 parts by weight of soda ash, 8 parts by weight of water-reducing agent, 50 parts by weight of water.
Wherein, the polymer powder is polypropylene powder, and the grain size of the polymer powder is less than 80 microns.The water-reducing agent is naphthalene
Sulfonates water-reducing agent.The preparation method that the material uses is as follows：
A, ball milling：The slag micropowder, epoxy resin and epoxy propane butyl ether of above-mentioned parts by weight, mixing is taken to be transferred to low temperature planet
Formula ball mill carries out ball milling, and the temperature for controlling ball milling is not higher than 20 DEG C, after ball milling, and resulting materials are crossed 180 mesh sieve, oversize matter
It returns to low temp planetary ball mill and continues ball milling, until all substances cross 180 mesh sieve, screenings matter is mixed, is obtained
Grain size is less than 80 microns of mixed powder, spare.
B, the preparation of soda ash solution：The soda ash of above-mentioned parts by weight and water are mixed, soda ash solution is obtained, it is spare.
C, prepared by pastes：The soda ash solution that mixed powder that a steps obtain, b step are obtained and above-mentioned parts by weight
Polymer powder and water-reducing agent mixing, obtain 3D room temperature printing pastes.
After tested, the resting period of 3D room temperature printing pastes is 160min, there is certain resting period, and is printed
Setting time afterwards is 55s, and setting rate is fast, so that material is unlikely to slump and can not complete accumulation, be superimposed and form 3D printing
Effect, the precision for printing product is high.The tensile strength of product is 1.54MPa after printing, and mechanical property is good.
Embodiment 3
A kind of 3D room temperature printing pastes, raw material group become：40 parts by weight of slag micropowder, 46 parts by weight of epoxy resin, ring
11 parts by weight of Ethylene Oxide butyl ether, 36 parts by weight of polymer powder, 8 parts by weight of soda ash, 4 parts by weight of water-reducing agent, 40 parts by weight of water.
Wherein, the polymer powder is polycarbonate powder, and the grain size of the polymer powder is less than 80 microns.The water-reducing agent is
Polycarboxylate water-reducer.The preparation method that the material uses is as follows：
A, ball milling：The slag micropowder, epoxy resin and epoxy propane butyl ether of above-mentioned parts by weight, mixing is taken to be transferred to low temperature planet
Formula ball mill carries out ball milling, and the temperature for controlling ball milling is not higher than 20 DEG C, after ball milling, and resulting materials are crossed 180 mesh sieve, oversize matter
It returns to low temp planetary ball mill and continues ball milling, until all substances cross 180 mesh sieve, screenings matter is mixed, is obtained
Grain size is less than 80 microns of mixed powder, spare.
B, the preparation of soda ash solution：The soda ash of above-mentioned parts by weight and water are mixed, soda ash solution is obtained, it is spare.
C, prepared by pastes：The soda ash solution that mixed powder that a steps obtain, b step are obtained and above-mentioned parts by weight
Polymer powder and water-reducing agent mixing, obtain 3D room temperature printing pastes.
After tested, the resting period of 3D room temperature printing pastes is 165min, there is certain resting period, and is printed
Setting time afterwards is 50s, and setting rate is fast, so that material is unlikely to slump and can not complete accumulation, be superimposed and form 3D printing
Effect, the precision for printing product is high.The tensile strength of product is 1.57MPa after printing, and mechanical property is good.
Embodiment 4
A kind of 3D room temperature printing pastes, raw material group become：20 parts by weight of slag micropowder, 35 parts by weight of epoxy resin, ring
17 parts by weight of Ethylene Oxide butyl ether, 24 parts by weight of polymer powder, 5 parts by weight of soda ash, 7 parts by weight of water-reducing agent, 30 parts by weight of water.
Wherein, the polymer powder is polyurethane powder, and the grain size of the polymer powder is less than 80 microns.The water-reducing agent is poly-
Carboxylic acid water reducer.The preparation method that the material uses is as follows：
A, ball milling：The slag micropowder, epoxy resin and epoxy propane butyl ether of above-mentioned parts by weight, mixing is taken to be transferred to low temperature planet
Formula ball mill carries out ball milling, and the temperature for controlling ball milling is not higher than 20 DEG C, after ball milling, and resulting materials are crossed 180 mesh sieve, oversize matter
It returns to low temp planetary ball mill and continues ball milling, until all substances cross 180 mesh sieve, screenings matter is mixed, is obtained
Grain size is less than 80 microns of mixed powder, spare.
B, the preparation of soda ash solution：The soda ash of above-mentioned parts by weight and water are mixed, soda ash solution is obtained, it is spare.
C, prepared by pastes：The soda ash solution that mixed powder that a steps obtain, b step are obtained and above-mentioned parts by weight
Polymer powder and water-reducing agent mixing, obtain 3D room temperature printing pastes.
After tested, the resting period of 3D room temperature printing pastes is 150min, there is certain resting period, and is printed
Setting time afterwards is 60s, and setting rate is fast, so that material is unlikely to slump and can not complete accumulation, be superimposed and form 3D printing
Effect, the precision for printing product is high.The tensile strength of product is 1.51MPa after printing, and mechanical property is good.
Embodiment 5
A kind of 3D room temperature printing pastes, raw material group become：35 parts by weight of slag micropowder, 35 parts by weight of epoxy resin, ring
12 parts by weight of Ethylene Oxide butyl ether, 28 parts by weight of polymer powder, 5 parts by weight of soda ash, 5 parts by weight of water-reducing agent, 30 parts by weight of water.
Wherein, the polymer powder is polyurethane powder, and the grain size of the polymer powder is less than 80 microns.The water-reducing agent is poly-
Carboxylic acid water reducer.The preparation method that the material uses is as follows：
A, ball milling：The slag micropowder, epoxy resin and epoxy propane butyl ether of above-mentioned parts by weight, mixing is taken to be transferred to low temperature planet
Formula ball mill carries out ball milling, and the temperature for controlling ball milling is not higher than 20 DEG C, after ball milling, and resulting materials are crossed 180 mesh sieve, oversize matter
It returns to low temp planetary ball mill and continues ball milling, until all substances cross 180 mesh sieve, screenings matter is mixed, is obtained
Grain size is less than 80 microns of mixed powder, spare.
B, the preparation of soda ash solution：The soda ash of above-mentioned parts by weight and water are mixed, soda ash solution is obtained, it is spare.
C, prepared by pastes：The soda ash solution that mixed powder that a steps obtain, b step are obtained and above-mentioned parts by weight
Polymer powder and water-reducing agent mixing, obtain 3D room temperature printing pastes.
After tested, the resting period of 3D room temperature printing pastes is 160min, there is certain resting period, and is printed
Setting time afterwards is 45s, and setting rate is fast, so that material is unlikely to slump and can not complete accumulation, be superimposed and form 3D printing
Effect, the precision for printing product is high.The tensile strength of product is 1.58MPa after printing, and mechanical property is good.
Embodiment 6
A kind of 3D room temperature printing pastes, raw material group become：30 parts by weight of slag micropowder, 40 parts by weight of epoxy resin, ring
15 parts by weight of Ethylene Oxide butyl ether, 32 parts by weight of polymer powder, 6 parts by weight of soda ash, 5 parts by weight of water-reducing agent, 38 parts by weight of water.
Wherein, the polymer powder is polyurethane powder, and the grain size of the polymer powder is less than 80 microns.The water-reducing agent is poly-
Carboxylic acid water reducer.The preparation method that the material uses is as follows：
A, ball milling：The slag micropowder, epoxy resin and epoxy propane butyl ether of above-mentioned parts by weight, mixing is taken to be transferred to low temperature planet
Formula ball mill carries out ball milling, and the temperature for controlling ball milling is not higher than 20 DEG C, after ball milling, and resulting materials are crossed 180 mesh sieve, oversize matter
It returns to low temp planetary ball mill and continues ball milling, until all substances cross 180 mesh sieve, screenings matter is mixed, is obtained
Grain size is less than 80 microns of mixed powder, spare.
B, the preparation of soda ash solution：The soda ash of above-mentioned parts by weight and water are mixed, soda ash solution is obtained, it is spare.
C, prepared by pastes：The soda ash solution that mixed powder that a steps obtain, b step are obtained and above-mentioned parts by weight
Polymer powder and water-reducing agent mixing, obtain 3D room temperature printing pastes.
After tested, the resting period of 3D room temperature printing pastes is 170min, there is certain resting period, and is printed
Setting time afterwards is 40s, and setting rate is fast, so that material is unlikely to slump and can not complete accumulation, be superimposed and form 3D printing
Effect, the precision for printing product is high.The tensile strength of product is 1.69MPa after printing, and mechanical property is good.
Comparative example 1
A kind of 3D room temperature printing pastes, raw material group become：40 parts by weight of epoxy resin, 15 weight of epoxy propane butyl ether
Part, 32 parts by weight of polymer powder, 6 parts by weight of soda ash, 5 parts by weight of water-reducing agent, 38 parts by weight of water.Wherein, the polymer powder
End is polyurethane powder, and the grain size of the polymer powder is less than 80 microns.The water-reducing agent is polycarboxylate water-reducer.The material
The preparation method of use is as follows：
A, ball milling：Take the epoxy resin and epoxy propane butyl ether of above-mentioned parts by weight, mixing, be transferred to low temp planetary ball mill into
Row ball milling, the temperature for controlling ball milling are not higher than 20 DEG C, after ball milling, resulting materials are crossed 180 mesh sieve, oversize matter returns to low temperature row
Planetary ball mill continues ball milling, and until all substances cross 180 mesh sieve, screenings matter is mixed, grain size is obtained and is less than 80
The mixed powder of micron, it is spare.
B, the preparation of soda ash solution：The soda ash of above-mentioned parts by weight and water are mixed, soda ash solution is obtained, it is spare.
C, prepared by pastes：The soda ash solution that mixed powder that a steps obtain, b step are obtained and above-mentioned parts by weight
Polymer powder and water-reducing agent mixing, obtain 3D room temperature printing pastes.
After tested, the resting period of 3D room temperature printing pastes is 130min, there is certain resting period, and is printed
Setting time afterwards is 400s, and setting rate is slower, is easy to cave in, and the precision for printing product is relatively low.The tension of product after printing
Intensity is 1.13MPa, and mechanical property is to be improved.
Claims (10)
1. a kind of preparation method of 3D room temperature printing pastes, which is characterized in that include the following steps：
A, ball milling：By slag micropowder, epoxy resin and epoxy propane butyl ether mixing, it is transferred to planetary ball mill ball milling, ball milling
It is less than 80 microns to grain size, obtains mixed powder；
B, prepared by pastes：Mixed powder, polymer powder, soda ash, water-reducing agent and the water mixing that a steps are obtained, obtain 3D
Room temperature prints pastes.
2. the preparation method of 3D room temperature printing pastes according to claim 1, which is characterized in that the weight of each raw material
Part it is：10~50 parts of slag micropowder, 30~50 parts of epoxy resin, 5~20 parts of epoxy propane butyl ether, polymer powder 20~40
Part, 4~10 parts of soda ash, 3~8 parts of water-reducing agent, 20~50 parts of water.
3. the preparation method of 3D room temperature printing pastes according to claim 2, which is characterized in that 30 weight of slag micropowder
Amount part, 40 parts by weight of epoxy resin, 15 parts by weight of epoxy propane butyl ether, 32 parts by weight of polymer powder, 6 parts by weight of soda ash,
5 parts by weight of water-reducing agent, 38 parts by weight of water.
4. printing the preparation method of pastes according to claims 1 to 3 any one of them 3D room temperature, it is characterised in that：Institute
It is powders of thermoplastic polymers to state polymer powder.
5. printing the preparation method of pastes according to Claims 1 to 4 any one of them 3D room temperature, it is characterised in that：Institute
The grain size for stating polymer powder is less than 80 microns.
6. printing the preparation method of pastes according to Claims 1 to 5 any one of them 3D room temperature, it is characterised in that：Institute
It is lignin sulfonate water-reducing agent, naphthalenesulfonate water-reducing agent or polycarboxylate water-reducer to state water-reducing agent.
7. the preparation method of 3D room temperature printing pastes according to claim 1, it is characterised in that：In a steps, use
Low temp planetary ball mill carries out ball milling.
8. the preparation method of 3D room temperature printing pastes according to claim 7, it is characterised in that：In a steps, ball milling
Temperature be not higher than 20 DEG C.
9. printing the preparation method of pastes according to claim 1~8 any one of them 3D room temperature, it is characterised in that：B is walked
In rapid, first soda ash and water are mixed, soda ash solution is made, then mixed powder, polymer powder, water-reducing agent and soda ash solution are mixed
It is even.
10. a kind of 3D room temperature prints pastes, it is characterised in that：It is beaten using claim 1~9 any one of them 3D room temperature
The preparation method of print pastes is prepared.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181236A (en) * | 2018-08-06 | 2019-01-11 | 赵延延 | A kind of preparation method of quick-setting biological 3D printing material |
| CN109620488A (en) * | 2018-12-11 | 2019-04-16 | 上海七木医疗器械有限公司 | The production technology of 3D layering printing is carried out under a kind of low temperature |
| CN110342883A (en) * | 2019-07-25 | 2019-10-18 | 佛山市津明建筑科技有限公司 | A kind of 3D printing epoxy resin concrete material and preparation method thereof |
| CN110978501A (en) * | 2019-12-27 | 2020-04-10 | 珠海天威飞马打印耗材有限公司 | Normal-temperature three-dimensional printing method and three-dimensional printing device |
| CN111117228A (en) * | 2019-12-31 | 2020-05-08 | 湖南华曙高科技有限责任公司 | Preparation method of polymer powder material for optical fiber laser sintering |
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2018
- 2018-01-26 CN CN201810076914.4A patent/CN108299798A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181236A (en) * | 2018-08-06 | 2019-01-11 | 赵延延 | A kind of preparation method of quick-setting biological 3D printing material |
| CN109620488A (en) * | 2018-12-11 | 2019-04-16 | 上海七木医疗器械有限公司 | The production technology of 3D layering printing is carried out under a kind of low temperature |
| CN110342883A (en) * | 2019-07-25 | 2019-10-18 | 佛山市津明建筑科技有限公司 | A kind of 3D printing epoxy resin concrete material and preparation method thereof |
| CN110342883B (en) * | 2019-07-25 | 2021-12-10 | 深圳市明远氟建筑装饰工程有限公司 | Epoxy resin concrete material for 3D printing and preparation method thereof |
| CN110978501A (en) * | 2019-12-27 | 2020-04-10 | 珠海天威飞马打印耗材有限公司 | Normal-temperature three-dimensional printing method and three-dimensional printing device |
| CN111117228A (en) * | 2019-12-31 | 2020-05-08 | 湖南华曙高科技有限责任公司 | Preparation method of polymer powder material for optical fiber laser sintering |
| CN111117228B (en) * | 2019-12-31 | 2023-03-10 | 湖南华曙新材料科技有限责任公司 | Preparation method of high polymer powder material for optical fiber laser sintering |
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