CN106433142A - Silica gel 3D printer and printing method thereof - Google Patents
Silica gel 3D printer and printing method thereof Download PDFInfo
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- CN106433142A CN106433142A CN201610820881.0A CN201610820881A CN106433142A CN 106433142 A CN106433142 A CN 106433142A CN 201610820881 A CN201610820881 A CN 201610820881A CN 106433142 A CN106433142 A CN 106433142A
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
- C08L83/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- 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
- B33Y10/00—Processes of additive manufacturing
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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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- 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
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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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
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention relates to a silica gel 3D printer and a printing method thereof. The silica gel 3D printer comprises a movement module, a printing module and a software controlling system, wherein the movement module comprises a rack, an X-axis power-driven module, a Y-axis power-driven module, a Z-axis power-driven module, wherein the X-axis power-driven module, the Y-axis power-driven module and the Z-axis power-driven module are arranged on the rack in a direction of a coordinate system, and a baseplate module arranged on the Z-axis power-driven module. The printing module comprises a pressure barrel, a dispensing valve and a printing nozzle which are connected successively, wherein the printing nozzle is fixed on the Y-axis power-driven module through a fixing plate, the baseplate module comprises a printing layer board which is fixed on the Z-axis power driven module and a printing groove which is fixed on the printing layer board, and the printing groove is loaded with silica gel stoste which fully covers silica gel solidification catalytic agent squeezed out of the printing nozzle. The software controlling module conducts communication control on the X-axis power-driven module, the Y-axis power-driven module, the Z-axis power driven module and the dispensing valve. According to the silica gel 3D printer and the printing method thereof, supporting structures do not need to be added and printing quality of the silica gel surface structure is very excellent.
Description
Technical field
The present invention relates to 3D printing field is and in particular to a kind of silica gel 3D printer and its Method of printing.
Background technology
3D printing technique is a kind of processing and manufacturing technology fast-developing in recent years, realizes zero by way of increasing material manufacturing
The quick manufacture of part, the features such as having that the process-cycle is short, stock utilization is high, can process the part with labyrinth.Common
3D printing technique mainly have fusion sediment technology, Stereolithography technology, Selective Laser Sintering etc., but all cannot be real
The 3D printing of existing silica gel material.
In the silica gel 3D printer and silica gel product Method of printing of Chinese patent CN201610122318.6, disclose one
Plant silica gel 3D printer and Method of printing, to solve to print the silica gel product with soft and elastic characteristic in prior art
The technical problem of product.Its technical characterstic mainly has at 2 points：One be printing head be by Pneumatic module control silica gel extrusion and
Shower nozzle needle tubing is preheated；Two is the curing mode of silica gel, that is, pass through to arrange cylindric heater, pin in print area surrounding
Printing silica gel heated in real-time solidification to each layer.
This patent is primarily present problem：Need in the print procedure of silica gel structure to add necessary supporting construction to complete silicon
Glue prints, and the later stage of supporting construction removes printout surface quality that is relatively complicated and then can affecting silica gel structure.
Content of the invention
In view of the drawbacks described above of prior art, the technical problem to be solved is to provide one kind need not add support
The good silica gel 3D printer of structure, silica gel structure printout surface quality and its Method of printing.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of silica gel stoste, comprises following component, is calculated in mass percent：
Basic glue, 2.4-59.9wt%,
Crosslinking agent, 23-69.2wt%,
Inserts, 10-30wt%,
Described basis glue is with hydroxy-end capped line style polysiloxane, or described basis glue is at least for degree of functionality
2 polysiloxanes containing vinyl ends or side base；Described crosslinking agent is to be connected with acyloxy or hydrogen atom or hydroxyl on silicon atom
Organosiloxane, or described crosslinking agent be silicon-hydrogen bond containing oligosiloxane；Described inserts is reinforcing or weak reinforcement
Property filler.
Preferably, described reinforcing or weak reinforcing filler is to be 10-50nm and specific surface area 70- selected from initial size
400m2The reinforcing filler of/g or initial size are 300-1000nm and specific surface area is in 30m2/ below g's is weak reinforcing
Filler.It is furthermore preferred that described inserts is white carbon, carbon black, calcium carbonate, silica flour, diatomite, zinc oxide, titanium dioxide.
Preferably, described silica gel stoste also includes tackifier, and described tackifier are silane coupler.
Preferably, described silica gel stoste viscosity number scope under the conditions of 25 DEG C is 3000-100000cps, the silicon after solidification
Glue hardness is 0-50A, and tensile strength is 1-5MPa, and percentage elongation is 170-1200%, and tearing strength is 3-26kN/m.
Another technical scheme that the present invention solves that its technical problem adopted is：
A kind of silica gel 3D printer, including motion module, print module and software control system, described motion module includes
Frame, be arranged in described frame along coordinate system direction setting X-axis electric module, Y-axis electric module, Z axis electric module and
It is arranged on the floor module on described Z axis electric module, pressure pot that described print module includes being sequentially connected with, glue dispensing valve and beat
Print shower nozzle, described printing head is fixed on described Y-axis electric module by fixed plate, and described floor module includes being fixed on institute
State printing supporting plate and being fixed on the described print cup printing on supporting plate on Z axis electric module, described print cup is built with silica gel
Stoste, the fully wrapped around silica gel curing catalysts from described printing head extrusion of described silica gel stoste, described software control system
Control on Communication is carried out to described X-axis electric module, Y-axis electric module, Z axis electric module, glue dispensing valve.
Preferably, described silica gel stoste consists of the following composition：Calculated in weight percent, gathered with hydroxy-end capped line style
Glue based on organosiloxane, or the polysiloxanes containing vinyl ends or side base of degree of functionality at least 2,2.4-
59.9wt%, to be connected with the organosiloxane of acyloxy or hydrogen atom or hydroxyl, or the oligomeric silica of silicon-hydrogen bond containing on silicon atom
Alkane is crosslinking agent, 23-69.2wt%, with reinforcing or weak reinforcing filler as inserts, 10-30wt%.
Preferably, described reinforcing or weak reinforcing filler is to be 10-50nm and specific surface area 70- selected from initial size
400m2The reinforcing filler of/g or initial size are 300-1000nm and specific surface area is in 30m2/ below g's is weak reinforcing
Filler.It is furthermore preferred that described inserts is white carbon, carbon black, calcium carbonate, silica flour, diatomite, zinc oxide, titanium dioxide.
Preferably, described silica gel stoste also includes tackifier, and described tackifier are silane coupler.
Preferably, described X-axis electric module, Y-axis electric module, Z axis electric module are respectively included in X-axis motor, Y-axis horse
Reach, Z axis motor is consolidated respectively along X-axis, Y-axis, the X slide block of Z-direction slip, Y slide block, Z slide block, described printing supporting plate under driving
It is scheduled on the described Z slide block of described Z axis electric module, it is electronic that described printing head is fixed on described Y-axis by described fixed plate
On the described Y slide block of module.
Preferably, described floor module is additionally included in the inwall equally distributed heating galvanic couple of described print cup, described plus
Thermocouple is fixed on the inwall of described print cup by high-temperature-resistant adhesive.
Preferably, the preheating temperature of described heating galvanic couple is 50-120 DEG C, and described silica gel curing catalysts are that Theil indices are
The organo-tin compound of 15-35wt% or platinum content are platinum compounds and its complex of 0.1-1wt%.
Preferably, described pressure pot is connected with the charging aperture of described glue dispensing valve by flexible pipe, the discharging opening of described glue dispensing valve
It is connected with described printing head by flexible pipe, the air inlet connection compressed air of described glue dispensing valve.
Preferably, described X-axis electric module includes X-axis motor, contiguous block, shaft coupling, screw rod, optical axis slide bar and X slide block,
Described contiguous block is fixed in described frame, and described X-axis motor is fixed on described contiguous block, and passes through described shaft coupling
It is connected with described screw rod, described optical axis slide bar is fixed on described contiguous block, described X slide block is by the transmission on described screw rod
Screw thread moves in the X-axis direction along described optical axis slide bar.
Preferably, described software control system controls the air inlet of described glue dispensing valve by the communication interface of described glue dispensing valve
Air pressure, described software control system by control described heating galvanic couple Control on Communication is carried out to described floor module.
Preferably, the compressed gas air pressure of the air inlet of described glue dispensing valve is 0.6-1.5MPa.
Preferably, the internal diameter of described printing head is 0.1-2mm, and extruded velocity is 0.001-1mL/s.
Preferably, described printing head in described software control system to described X-axis electric module and the electronic mould of described Y-axis
Translational speed under the coordinated signals of block is 0.5-50mm/s.
The 3rd technical scheme that the present invention solves that its technical problem adopted be：
A kind of Method of printing of silica gel 3D printer, comprises the following steps：
If described silica gel product is divided into by A, software control system according to the model data information of silica gel product to be printed
Dried layer；
B, elder generation load onto silica gel stoste in print cup, and the depth of described silica gel stoste is more than the height of silica gel product to be printed
Degree；
C, when printing n-th layer, described software control system controls Z according to the model data information of silica gel product to be printed
The Z axis motor of axle electric module rotarily drives Z slide block and moves to n-th layer height with the floor module being fixed on described Z slide block,
Printing head is placed in below the liquid level of described silica gel stoste, control glue dispensing valve at a particular pressure by silica gel curing catalysts from
Pressure pot is extruded in described printing head through described glue dispensing valve, by described software control system to X-axis electric module and Y-axis electricity
The coordinated signals of dynamic model block by printing head movement to ad-hoc location, in the silica gel curing catalysts of extrusion and described print cup
Described silica gel stoste solidifies rapidly after fully reacting, and the structure after solidification becomes under the high viscosity of described silica gel stoste supports naturally
Type, completes the printing of n-th layer silica gel structure；Subsequently described software control system controls the Z axis motor rotation of described Z axis electric module
Turn and drive Z slide block and the floor module that is fixed on described Z slide block to decline the height of a thickness, proceed on N+1 layer repeats
State step to print until completing this silica gel product.
Preferably, in stepb, described silica gel stoste consists of the following composition：Calculated in weight percent, with hydroxyl envelope
Glue based on the line style polysiloxane at end, or the polysiloxanes containing vinyl ends or side base of degree of functionality at least 2,
2.4-59.9wt%, to be connected with the organosiloxane of acyloxy or hydrogen atom or hydroxyl on silicon atom, or silicon-hydrogen bond containing is oligomeric
Siloxanes is crosslinking agent, 23-69.2wt%, with reinforcing or weak reinforcing filler as inserts, 10-30wt%.
Preferably, described reinforcing or weak reinforcing filler is to be 10-50nm and specific surface area 70- selected from initial size
400m2The reinforcing filler of/g or initial size are 300-1000nm and specific surface area is in 30m2/ below g's is weak reinforcing
Filler.It is furthermore preferred that described inserts is white carbon, carbon black, calcium carbonate, silica flour, diatomite, zinc oxide, titanium dioxide.
Preferably, in stepb, described silica gel stoste also includes tackifier, and described tackifier are silane coupler；In step
In rapid C, described floor module is additionally included in the inwall equally distributed heating galvanic couple of described print cup, and described heating galvanic couple passes through
High-temperature-resistant adhesive is fixed on the inwall of described print cup, by described heating galvanic couple, described silica gel stoste is preheated, in advance
Hot temperature is 50-120 DEG C, and described silica gel curing catalysts are organo-tin compounds that Theil indices are 15-35wt% or platinum contains
Measure the platinum compounds for 0.1-1wt% and its complex, the specified pressure of described glue dispensing valve is 0.6-1.5MPa, described printing spray
The internal diameter of head is 0.1-2mm, and extruded velocity is 0.001-1mL/s, and described printing head is in described software control system to described X
Translational speed under the coordinated signals of axle electric module and described Y-axis electric module is 0.5-50mm/s.
Compared with the existing technology, advantages of the present invention is as follows with progress：
1st, the present invention is in the way of printing head immersion, is printing, backing material using high-viscosity silica gel stoste,
Coordinate the acceleration solidification printing shaping of silica gel curing catalysts again, due to the silica gel knot to solidification for the high-viscosity silica gel stoste
Structure has natural support effect, so need not print corresponding supporting construction for hanging silica gel structure in print procedure, beats
The silica gel product of shaping is directly taken out after completing from print cup by print, and allows the silica gel stoste on its surface naturally to trickle admittedly
Changing, thus eliminating printing silica gel supporting construction, silica gel structure print quality can be effectively improved.
2nd, the present invention by print cup inwall uniformly paste heating galvanic couple silica gel stoste is preheated, Ke Yiti
The effect of high solidification.
Brief description
Fig. 1 is the structural representation of silica gel 3D printer；
Fig. 2 is the partial enlarged drawing of glue dispensing valve；
Fig. 3 is the partial enlarged drawing of X-axis electric module；
Fig. 4 is the partial enlarged drawing of floor module；
Fig. 5 is the partial enlarged drawing of printing head；
Wherein, 1 is frame, and 2 is X-axis electric module, and 3 is Y-axis electric module, and 4 is Z axis electric module, and 5 is pressure pot, 6
It is glue dispensing valve, 7 is printing head, 8 is floor module, 9 is discharging opening, 10 is communication interface, 11 is charging aperture, 12 is air inlet
Mouthful, 13 is optical axis slide bar, and 14 is screw rod, and 15 is shaft coupling, and 16 is contiguous block, and 17 is X-axis motor, and 18 is X slide block, and 19 is to print
Supporting plate, 20 is print cup, and 21 is heating galvanic couple, and 22 is fixed plate.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, develop simultaneously embodiment referring to the drawings
The present invention is described in detail.
Prepare silica gel stoste according to following components, be calculated in mass percent：Basic glue 2.4-59.9wt%, crosslinking agent 23-
69.2wt%, inserts 10-30wt%, described basis glue is with hydroxy-end capped line style polysiloxane, or degree of functionality is extremely
It is 2 polysiloxanes containing vinyl ends or side base less；Described crosslinking agent be silicon atom on be connected with acyloxy or hydrogen atom or
The organosiloxane of hydroxyl, or the oligosiloxane of silicon-hydrogen bond containing；Described inserts is reinforcing or weak reinforcing filler.Institute
Stating reinforcing or weak reinforcing filler is to be 10-50nm and specific surface area 70-400m selected from initial size2The reinforcing of/g is filled out
Fill agent or initial size is 300-1000nm and specific surface area is in 30m2The weak reinforcing filler of/below g, described inserts
It is preferably white carbon, carbon black, calcium carbonate, silica flour, diatomite, zinc oxide, titanium dioxide.
Embodiment 1：Glue based on hydroxy-end capped line style polysiloxane, mass ratio is 46.4wt%；Former with silicon
The organosiloxane being connected with acyloxy on son is crosslinking agent, and mass ratio is 23wt%；With initial size as 300nm, specific surface area
For 29.4m2The calcium carbonate of/g is inserts, and mass ratio is 30wt%；The tackifier of balance of silane coupler.
It is 54000cps that the silica gel stoste obtaining mixes viscosity number at latter 25 DEG C, and after solidification, (continue silica gel hardness you
(A) it is) 50, tensile strength is：5MPa, percentage elongation is：170%, tearing strength is：26kN/m.
Embodiment 2：Glue based on hydroxy-end capped line style polysiloxane, mass ratio is 2.4wt%；With silicon atom
On be connected with hydrogen atom organosiloxane be crosslinking agent, mass ratio be 69.2wt%；With initial size as 50nm, specific surface area be
70m2The carbon black of/g is inserts, and mass ratio is 27.9wt%；The tackifier of balance of silane coupler.
It is 3000cps that the silica gel stoste obtaining mixes viscosity number at latter 25 DEG C, silica gel hardness (continue that (A)) after solidification
For 40, tensile strength is：4.3MPa, percentage elongation is：240%, tearing strength is：24.1kN/m.
Embodiment 3：Glue based on hydroxy-end capped line style polysiloxane, mass ratio is 25.8wt%；Former with silicon
The organosiloxane being connected with hydroxyl on son is crosslinking agent, and mass ratio is 58.3wt%；With initial size as 10nm, specific surface area be
400m2The white carbon of/g is inserts, and mass ratio is 15.8wt%；The tackifier of balance of silane coupler.
It is 75000cps that the silica gel stoste obtaining mixes viscosity number at latter 25 DEG C, and after solidification, (continue silica gel hardness you
(A) it is) 25, tensile strength is：1.8MPa, percentage elongation is：460%, tearing strength is：15.6kN/m.
Embodiment 4：By degree of functionality be 2 the polysiloxanes containing vinyl ends based on glue, mass ratio be 59.9wt%；
With the oligosiloxane of silicon-hydrogen bond containing as crosslinking agent, mass ratio is 26.3wt%；With initial size as 750nm, specific surface area be
7.8m2The silica flour of/g is inserts, and mass ratio is 13.5wt%；The tackifier of balance of silane coupler.
It is 100000cps that the silica gel stoste obtaining mixes viscosity number at latter 25 DEG C, and after solidification, (continue silica gel hardness you
(A) it is) 30, tensile strength is：1.6MPa, percentage elongation is：730%, tearing strength is：8.3kN/m.
Embodiment 5：By degree of functionality be 2 the polysiloxanes containing vinyl group pendant based on glue, mass ratio be 44.5wt%；
With the oligosiloxane of silicon-hydrogen bond containing as crosslinking agent, mass ratio is 45wt%；With initial size as 1000nm, specific surface area be
1.4m2The diatomite of/g is inserts, and mass ratio is 10wt%；The tackifier of balance of silane coupler.
It is 50000cps that the silica gel stoste obtaining mixes viscosity number at latter 25 DEG C, and after solidification, (continue silica gel hardness you
(A) it is) 0, tensile strength is：1MPa, percentage elongation is：1200%, tearing strength is：3kN/m.
Embodiment 6：By degree of functionality be 10 the polysiloxanes containing vinyl group pendant based on glue, mass ratio is
42.5wt%；With the oligosiloxane of silicon-hydrogen bond containing as crosslinking agent, mass ratio is 38.4wt%；With initial size as 530nm, ratio
Surface area is 21m2The zinc oxide of/g is inserts, and mass ratio is 18.7wt%；The tackifier of balance of silane coupler.
It is 45000cps that the silica gel stoste obtaining mixes viscosity number at latter 25 DEG C, and after solidification, (continue silica gel hardness you
(A) it is) 35, tensile strength is：2.9MPa, percentage elongation is：410%, tearing strength is：18.4kN/m.
Embodiment 7：Glue based on hydroxy-end capped line style polysiloxane, mass ratio is 38.8wt%；Former with silicon
The organosiloxane being connected with hydroxyl on son is crosslinking agent, and mass ratio is 39.4wt%；With initial size as 630nm, specific surface area
For 13.6m2The titanium dioxide of/g is inserts, and mass ratio is 21.8wt%.
It is 43000cps that the silica gel stoste obtaining mixes viscosity number at latter 25 DEG C, and after solidification, (continue silica gel hardness you
(A) it is) 35, tensile strength is：4.0MPa, percentage elongation is：280%, tearing strength is：22.9kN/m.
As shown in figure 1, a kind of silica gel 3D printer, including motion module, print module and software control system, described fortune
Dynamic model block includes frame 1, be arranged in described frame 1 along coordinate system direction setting X-axis electric module 2, Y-axis electric module 3,
Z axis electric module 4 and the floor module 8 being arranged on described Z axis electric module 4, described print module includes being sequentially connected with
Pressure pot 5, glue dispensing valve 6 and printing head 7, as shown in Figure 5：Described printing head 7 is fixed on the electronic mould of Y-axis by fixed plate 22
On block 3, as shown in Figure 4：Described floor module 8 includes the printing supporting plate 19 being fixed on described Z axis electric module 4 and is fixed on
The described print cup 20 printing on supporting plate 19, the inwall that described floor module 8 is additionally included in described print cup 20 is equally distributed
Heating galvanic couple 21, described heating galvanic couple 21 is fixed on the inwall of described print cup 20 by high-temperature-resistant adhesive.Described print cup
20 built with hydroxy-end capped line style polysiloxane, or degree of functionality at least 2 is poly- containing vinyl ends or side base
Glue based on siloxanes, 2.4-59.9wt%, so that the organosiloxane of acyloxy or hydrogen atom or hydroxyl to be connected with silicon atom, or
The oligosiloxane of silicon-hydrogen bond containing is crosslinking agent, 23-69.2wt%, with reinforcing or weak reinforcing filler as inserts, 10-
The silica gel stoste of 30wt%, adds tackifier by practical viscosity situation in good time, described silica gel stoste fully wrapped around from described printing
The silica gel curing catalysts of shower nozzle 7 extrusion, the preheating temperature of described heating galvanic couple 21 is 50-120 DEG C, described silica gel solidification catalysis
Agent is the organo-tin compound of Theil indices 15-35wt% or the platinum compounds of platinum content 0.1-1wt% and its complex.Described
Software control system is entered to described X-axis electric module 2, Y-axis electric module 3, Z axis electric module 4, glue dispensing valve 6, heating galvanic couple 21
Row Control on Communication.
Position wherein between X-axis electric module 2, Y-axis electric module 3, the component parts of Z axis electric module 4 and all parts
Put annexation to be similar to, as shown in figure 3, it includes X-axis motor 17, contiguous block 16, shaft coupling taking X-axis electric module 2 as a example
15th, screw rod 14, optical axis slide bar 13 and X slide block 18, described contiguous block 16 is fixed by screws in frame 1, described X-axis motor 17
It is fixed on contiguous block 16 by screw, by shaft coupling 15, X-axis motor 17 is connected with screw rod 14, optical axis slide bar 13 passes through spiral shell
Line is fixed on contiguous block 16, and X slide block 18 can be transported to X-direction along optical axis slide bar 13 by the motion thread on screw rod 14
Dynamic.
Y-axis electric module 3 is by Y-axis motor, Y-axis contiguous block, Y-axis screw rod, Y-axis shaft coupling, Y-axis optical axis slide bar and Y slide block
Composition, described Y-axis contiguous block is fixed by screws in frame 1, and described Y-axis motor is fixed on Y-axis contiguous block by screw,
By Y-axis shaft coupling, Y-axis motor is connected with Y-axis screw rod, Y-axis optical axis slide bar is threadedly secured on Y-axis contiguous block, Y is slided
Block can be moved to Y direction along Y-axis optical axis slide bar by the motion thread on Y-axis screw rod.
Z axis electric module 4 is by Z axis motor, Z axis contiguous block, Z axis screw rod, Z axis shaft coupling, Z axis optical axis slide bar and Z slide block
Composition, described Z axis contiguous block is fixed by screws in frame 1, and described Z axis motor is fixed on Z axis contiguous block by screw,
By Z axis shaft coupling, Z axis motor is connected with Z axis screw rod, Z axis optical axis slide bar is threadedly secured on Z axis contiguous block, Z is slided
Block can be moved to Z-direction along Z axis optical axis slide bar by the motion thread on Z axis screw rod.
As shown in Fig. 2 described pressure pot 5 is connected with the charging aperture 11 of described glue dispensing valve 6 by flexible pipe, described glue dispensing valve 6
Discharging opening 9 be connected with described printing head 7 by flexible pipe, the air inlet 12 of described glue dispensing valve 6 connection compressed air, described soft
Part control system controls the air pressure of the air inlet 12 of glue dispensing valve 6 by the communication interface 10 of described glue dispensing valve 6.
The present invention prints silica gel model and is carried out by the way of successively printing, and each layer working method is similar, and software controls system
If this silica gel product is divided into dried layer according to the model data information of silica gel product to be printed by system, specifically printed to n-th layer
Example：In print cup 20, first load onto silica gel stoste, the depth of described silica gel stoste is more than the height of silica gel product to be printed；Software
Control system controls the heating-up temperature of heating galvanic couple 21 that described silica gel stoste is preheated, and preheating temperature is 50-120 DEG C；Soft
Part control system, according to the n-th layer structure height being obtained by computer aided design and manufacture software, controls Z axis electric module 4
The rotation of Z axis motor, drive Z slide block and floor module thereon 8 to move to corresponding height, printing head 7 is submerged to described beating
In silica gel stoste in print groove 20, as shown in Figure 2：Air inlet 12 is controlled to adjust compressed gas by the communication interface 10 of glue dispensing valve 6
Body air pressure (0.6Mpa to 1.5MPa), by the platinum of the organo-tin compound of Theil indices 15-35wt% or platinum content 0.1-1wt%
Compound and its complex are clamp-oned in glue dispensing valve 6 by charging aperture 11 from pressure pot 5, and then are 0.1mm to 2mm model from internal diameter
Extrude in printing head 7 in enclosing, extruded velocity scope is 0.001mL/s to 1mL/s；Filling scanning according to n-th layer structure
Path, software control system controls X-axis electric module 2 and Y-axis electric module 3 linkage to complete the movement of printing head 9, mobile speed
Degree scope is 0.5mm/s to 50mm/s；Silica gel stoste in the silica gel curing catalysts printing and print cup 20 is fast after reacting
Speed solidification, the structure after solidification is subject to the supporting role of silica gel stoste to be maintained at the position in stoste, completes n-th layer silica gel structure
Printing；Subsequently described software control system controls the Z axis motor of described Z axis electric module 4 to rotarily drive Z slide block and be fixed on
Floor module 8 on described Z slide block declines the height of a thickness (0.1 to 0.4mm), proceeds to N+1 Rotating fields and prints, until
This silica gel product prints and completes；Because high-viscosity silica gel stoste has natural support effect to the silica gel structure of solidification, so
Corresponding supporting construction need not be printed for hanging silica gel structure in print procedure；Print this silica gel product after completing
Model directly takes out from print cup 20, and allows the silica gel stoste on its surface naturally to trickle solidification, is finally completed this silica gel product
Model manufacturing.
Finally it should be noted that the foregoing is only the preferred embodiment of the present invention, it is not limited to this
Invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included in this
Within bright protection domain.
Claims (15)
1. a kind of silica gel stoste, comprises following component, is calculated in mass percent：
Basic glue, 2.4-59.9wt%,
Crosslinking agent, 23-69.2wt%,
Inserts, 10-30wt%,
Described basis glue is with hydroxy-end capped line style polysiloxane, or described basis glue is degree of functionality at least 2
Polysiloxanes containing vinyl ends or side base；Described crosslinking agent is to be connected with having of acyloxy or hydrogen atom or hydroxyl on silicon atom
Organic siloxane, or described crosslinking agent be silicon-hydrogen bond containing oligosiloxane；Described inserts is reinforcing or weak reinforcing fills out
Fill agent.
2. silica gel stoste according to claim 1 it is characterised in that：Also include tackifier, described tackifier are that silane is even
Connection agent.
3. silica gel stoste according to claim 1 and 2 it is characterised in that：Described silica gel stoste viscosity under the conditions of 25 DEG C
Value scope is 3000-100000cps, and the silica gel hardness after solidification is 0-50A, and tensile strength is 1-5MPa, and percentage elongation is 170-
1200%, tearing strength is 3-26kN/m.
4. a kind of usage right require the silica gel stoste any one of 1 to 3 silica gel 3D printer it is characterised in that：Bag
Include motion module, print module and software control system, described motion module includes frame (1), be arranged in described frame (1)
X-axis electric module (2), Y-axis electric module (3), Z axis electric module (4) and be arranged on described Z axis along the setting of coordinate system direction
Floor module (8) on electric module (4), pressure pot (5) that described print module includes being sequentially connected with, glue dispensing valve (6) and beat
Print shower nozzle (7), described printing head (7) is fixed on described Y-axis electric module (3) by fixed plate (22), described base plate mould
Block (8) includes the printing supporting plate (19) being fixed on described Z axis electric module (4) and is fixed on described printing supporting plate (19)
Print cup (20), described print cup (20) built with described silica gel stoste, described silica gel stoste fully wrapped around from described printing
The silica gel curing catalysts that shower nozzle (7) is extruded, described software control system is to described X-axis electric module (2), Y-axis electric module
(3), Z axis electric module (4), glue dispensing valve (6) carry out Control on Communication.
5. silica gel 3D printer according to claim 4 it is characterised in that：Described X-axis electric module (2), the electronic mould of Y-axis
Block (3), Z axis electric module (4) be respectively included in X-axis motor (17), Y-axis motor, Z axis motor drive under respectively along X-axis, Y
Axle, the X slide block (18) of Z-direction slip, Y slide block, Z slide block, described printing supporting plate (19) is fixed on described Z axis electric module
(4), on described Z slide block, described printing head (7) is fixed on described Y-axis electric module (3) by described fixed plate (22)
On described Y slide block.
6. the silica gel 3D printer according to claim 4 or 5 it is characterised in that：Described floor module (8) is additionally included in institute
State the inwall equally distributed heating galvanic couple (21) of print cup (20), described heating galvanic couple (21) is fixed by high-temperature-resistant adhesive
Inwall in described print cup (20).
7. silica gel 3D printer according to claim 6 it is characterised in that：Described heating galvanic couple (21) preheating temperature be
50-120 DEG C, described silica gel curing catalysts are organo-tin compounds that Theil indices are 15-35wt% or platinum content is 0.1-
The platinum compounds of 1wt% and its complex.
8. silica gel 3D printer according to claim 7 it is characterised in that：Described pressure pot (5) pass through flexible pipe with described
The charging aperture (11) of glue dispensing valve (6) is connected, and the discharging opening (9) of described glue dispensing valve (6) passes through flexible pipe and described printing head (7) phase
Even, air inlet (12) the connection compressed air of described glue dispensing valve (6).
9. silica gel 3D printer according to claim 8 it is characterised in that：Described software control system is by described dispensing
The communication interface (10) of valve (6) controls the air pressure of the air inlet (12) of described glue dispensing valve (6), and described software control system passes through control
System described heating galvanic couple (21) carries out Control on Communication to described floor module (8).
10. silica gel 3D printer according to claim 9 it is characterised in that：The air inlet (12) of described glue dispensing valve (6)
Compressed gas air pressure is 0.6-1.5MPa.
11. silica gel 3D printers according to claim 6 it is characterised in that：Described X-axis electric module (2) includes X-axis horse
Reach (17), contiguous block (16), shaft coupling (15), screw rod (14), optical axis slide bar (13) and X slide block (18), described contiguous block (16)
It is fixed in described frame (1), described X-axis motor (17) is fixed on described contiguous block (16), and pass through described shaft coupling
Device (15) is connected with described screw rod (14), and described optical axis slide bar (13) is fixed on described contiguous block (16), described X slide block
(18) motion thread passing through on described screw rod (14) moves in the X-axis direction along described optical axis slide bar (13).
12. silica gel 3D printers according to claim 6 it is characterised in that：The internal diameter of described printing head (7) is 0.1-
2mm, extruded velocity is 0.001-1mL/s.
13. silica gel 3D printers according to claim 6 it is characterised in that：Described printing head (7) is in described software control
System processed is 0.5- to the translational speed under the coordinated signals of described X-axis electric module (2) and described Y-axis electric module (3)
50mm/s.
The Method of printing of the silica gel 3D printer of use silica gel stoste described in a kind of 14. any one according to claim 1-13,
Comprise the following steps：
If described silica gel product is divided into dried layer according to the model data information of silica gel product to be printed by A, software control system；
B, elder generation load onto described silica gel stoste in print cup (20), and the depth of described silica gel stoste is more than silica gel product to be printed
Highly；
C, when printing n-th layer, described software control system controls Z axis electricity according to the model data information of silica gel product to be printed
The Z axis motor of dynamic model block (4) rotarily drives Z slide block and moves to n-th layer height with the floor module (8) being fixed on described Z slide block
Degree, printing head (7) is placed in below the liquid level of described silica gel stoste, controls glue dispensing valve (6) at a particular pressure by silica gel solid
Change catalyst to extrude in described printing head (7) through described glue dispensing valve (6) from pressure pot (5), by described software control system
The coordinated signals of X-axis electric module (2) and Y-axis electric module (3) are moved printing head (7) to ad-hoc location, extrusion
Described silica gel stoste in silica gel curing catalysts and described print cup (20) solidifies rapidly after fully reacting, the structure after solidification
Naturally it is molded under the high viscosity of described silica gel stoste supports, complete the printing of n-th layer silica gel structure；Subsequently described software controls
System controls the floor module that the Z axis motor of described Z axis electric module (4) rotarily drives Z slide block and is fixed on described Z slide block
(8) decline the height of a thickness, proceed to N+1 layer repeat the above steps and print until completing this silica gel product.
The Method of printing of 15. silica gel 3D printers according to claim 14 it is characterised in that：In stepb, described silicon
Collagen solution also includes tackifier, and described tackifier are silane coupler；In step C, described floor module (8) is additionally included in institute
State the inwall equally distributed heating galvanic couple (21) of print cup (20), described heating galvanic couple (21) is fixed by high-temperature-resistant adhesive
In the inwall of described print cup (20), by described heating galvanic couple (21), described silica gel stoste is preheated, preheating temperature is
50-120 DEG C, described silica gel curing catalysts are organo-tin compound or platinum contents 0.1-1wt% of Theil indices 15-35wt%
Platinum compounds and its complex, the specified pressure of described glue dispensing valve (6) is 0.6-1.5MPa, described printing head (7) interior
Footpath is 0.1-2mm, and extruded velocity is 0.001-1mL/s, and described printing head (7) is in described software control system to described X-axis
Translational speed under the coordinated signals of electric module (2) and described Y-axis electric module (3) is 0.5-50mm/s.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610820881.0A CN106433142A (en) | 2016-09-12 | 2016-09-12 | Silica gel 3D printer and printing method thereof |
| CN201710683949.XA CN107298860B (en) | 2016-09-12 | 2017-08-11 | Silica gel 3D printer and printing method thereof |
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| CN201610820881.0A CN106433142A (en) | 2016-09-12 | 2016-09-12 | Silica gel 3D printer and printing method thereof |
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| CN201710683949.XA Expired - Fee Related CN107298860B (en) | 2016-09-12 | 2017-08-11 | Silica gel 3D printer and printing method thereof |
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| CN110328852A (en) * | 2019-06-27 | 2019-10-15 | 陕西科技大学 | A kind of the 3D printing equipment and its application method of continuous fiber reinforcement silicon rubber |
| CN110978508A (en) * | 2019-11-01 | 2020-04-10 | 清华大学 | Silica gel 3D printing device and printing method thereof |
| CN112549533A (en) * | 2020-11-20 | 2021-03-26 | 芜湖英罗智能制造有限公司 | Formula 3D printer is extruded to material |
| WO2023123482A1 (en) | 2021-12-31 | 2023-07-06 | Elkem Silicones Shanghai Co., Ltd. | Two-part silicone composition for additive manufacturing |
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| CN110238836A (en) * | 2019-06-21 | 2019-09-17 | 河海大学常州校区 | A kind of pneumatic software bending steering structure |
| CN110978500B (en) * | 2019-12-25 | 2022-03-08 | 深圳光韵达光电科技股份有限公司 | 3D printing method and device based on thermal initiator addition |
| CN112976572A (en) * | 2021-02-05 | 2021-06-18 | 华南理工大学 | Silica gel 3D printing device and method based on support bath |
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| CN102610752A (en) * | 2012-03-23 | 2012-07-25 | 清华大学深圳研究生院 | Method for manufacturing memory resistor through three-dimensional maskless slurry direct writing forming and memory resistor |
| CN103030976B (en) * | 2012-12-27 | 2015-05-13 | 成都拓利化工实业有限公司 | Single-component heat-curing liquid silicone rubber and preparation method thereof |
| TWI633157B (en) * | 2013-10-18 | 2018-08-21 | Shin-Etsu Chemical Co., Ltd. | Ultraviolet curable organic polysiloxane composition and method for producing plate |
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| CN104559196B (en) * | 2014-12-29 | 2017-05-03 | 大连理工常熟研究院有限公司 | Colorless and transparent light-cured 3D printing material |
| WO2016134972A1 (en) * | 2015-02-23 | 2016-09-01 | Philips Lighting Holding B.V. | Silicone mixture containing acrylates for inkjet and dispenser 3d printing |
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| CN105238064B (en) * | 2015-09-29 | 2019-04-09 | 广东标美硅氟新材料有限公司 | A kind of organosilicon material and preparation method thereof and its method for being applied to 3D printing |
| CN105328192B (en) * | 2015-11-13 | 2017-09-29 | 中国地质大学（武汉） | Three-dimensional printer printhead |
| CN105365222B (en) * | 2015-12-02 | 2019-05-17 | 四川大学 | A kind of coaxial powder-feeding powder bonding 3D printer and its control method |
| CN105599311B (en) * | 2016-01-28 | 2017-09-15 | 中国工程物理研究院化工材料研究所 | The method that silicon rubber porous material is prepared based on increases material manufacturing technology |
| CN105643939B (en) * | 2016-03-02 | 2017-09-19 | 深圳奇遇科技有限公司 | Silica gel 3D printer and silica gel product Method of printing |
-
2016
- 2016-09-12 CN CN201610820881.0A patent/CN106433142A/en active Pending
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2017
- 2017-08-11 CN CN201710683949.XA patent/CN107298860B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110328852A (en) * | 2019-06-27 | 2019-10-15 | 陕西科技大学 | A kind of the 3D printing equipment and its application method of continuous fiber reinforcement silicon rubber |
| CN110328852B (en) * | 2019-06-27 | 2021-11-12 | 陕西科技大学 | 3D printing equipment for continuous fiber reinforced silicone rubber and using method thereof |
| CN110978508A (en) * | 2019-11-01 | 2020-04-10 | 清华大学 | Silica gel 3D printing device and printing method thereof |
| CN112549533A (en) * | 2020-11-20 | 2021-03-26 | 芜湖英罗智能制造有限公司 | Formula 3D printer is extruded to material |
| WO2023123482A1 (en) | 2021-12-31 | 2023-07-06 | Elkem Silicones Shanghai Co., Ltd. | Two-part silicone composition for additive manufacturing |
Also Published As
| Publication number | Publication date |
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| CN107298860A (en) | 2017-10-27 |
| CN107298860B (en) | 2020-02-07 |
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