CN110437598A - A kind of preparation method of 3D printing special engineering plastics backing material and its wire rod - Google Patents
A kind of preparation method of 3D printing special engineering plastics backing material and its wire rod Download PDFInfo
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- CN110437598A CN110437598A CN201910755760.6A CN201910755760A CN110437598A CN 110437598 A CN110437598 A CN 110437598A CN 201910755760 A CN201910755760 A CN 201910755760A CN 110437598 A CN110437598 A CN 110437598A
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- engineering plastics
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- backing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention discloses the preparation method of a kind of 3D printing special engineering plastics backing material and its wire rod, which is grouped as by the group of following weight percent: 75-90 parts of polycarbonate resin；5-15 parts of reinforcing material；1-10 parts of compatilizer；2-5 parts of plasticiser；0.1-3 parts of antioxidant.The supporting line body of material preparation ensure that under hot environment, stablizing for support section is established during special engineering plastics 3D printing, with special engineering plastics polyether-ether-ketone, polyetherimide, polyether sulfone, polyether ketone ketone, polyphenylene sulfide, the bondings such as polyphenylsulfone well, while being put into asepsis environment-protecting solvent after the completion of product printing, and support section dissolution or swelling can remove rapidly.The preparation method of 3D printing backing material of the invention, chemical stability are high；Existing double screw extruder preparation can be used in simple production process, easily prepared, is suitble to industrialized production, is conducive to the marketing of the 3D printing material.
Description
Technical field
The present invention relates to 3D printing technique fields, and in particular to a kind of 3D printing special engineering plastics backing material and its line
The preparation method of material.
Background technique
3D printing technique obtains extensive concern and rapid development these years, and ((FDM) is current 3D printing to Deformation In The Fdm Process
An important branch, squeezed the basic principle is that high molecular material monofilament or wire rod are accurately sent to fire end to melt by gear
Out, and under accurate positioning three-dimension object is constructed by layer-by-layer accumulation mode.
3D printing backing material is used for fused glass pellet (FDM) 3D printing technique, and additional article is outstanding in print procedure
The molding of the position of hollow structure or hollow structure, the material for needing to remove after the completion of printing.As depicted in figs. 1 and 2, backing material
It calculates the model part for increasing and needing to support in technique automatically by computer software, is not belonging to a part of model, print
After need to remove.
Commercial type and the major part used are all cast materials, and the technology content of backing material is higher.
On the one hand, backing material is confidential to printing asks higher, needs printer to have while printing the ability of two kinds of materials.
On the other hand, the design of material of backing material requires very high, because backing material needs to consider and cast material
Bonding, with being adapted to of printing environment temperature, the dimensional stability in print procedure, post-process the mode and complexity of removal
Deng.
There are two main classes with technology for backing material currently on the market:
One, material same as ontology is being needed the position supported to be printed as dredging by the exfoliated bulk material of mainstream
The structure of pine is removed backing material by tools such as the method pliers of physics, pocket knives after the completion of printing from material of main part,
This method is there are operating difficulties, and backing material itself is not easy the disadvantages of removing completely and being easily destroyed material of main part, especially
High rigidity this for high-temperature special plastics, high-intensitive material, such as polyether-ether-ketone (PEEK), the materials such as polyetherimide (PEI)
Material, the process for removing support are quite time-consuming and difficult.
Two, lysotype backing material, predominantly water-soluble resin such as polyvinyl alcohol (PVA), acrylic copolymer etc., beat
Printout main body is impregnated in water after the completion of print, hot water can accelerate the dissolution of water soluble resin, utilize the water-soluble spy of backing material
Property remove, Water Soluble Support is capable of providing the good smooth supporting surface of printout, protects to printout surface quality preferable.But
That under normal circumstances, water-soluble support materials and bulk material caking property are poor, in print procedure, material of main part can because compared with
Weak bonding is detached from support and is deformed or warpage.And generally have the process of a swelling before dissolution, sometimes to system
Product cause some damages.Another soluble support high impact polystyrene (HIPS) material, dissolves in limonene, still
Using the higher cost of limonene, and it is difficult to recycle.
The maximum raw material of the main usage amount of 3D printing at present is polylactic acid (PLA) and acrylonitrile-butadiene-styrene (ABS) copolymerization
Object (ABS), backing material in the market is also mainly to support based on both materials, and the branch of 3D printing special engineering plastics
Timbering material is but almost blank.Special engineering plastics such as, polyether-ether-ketone (PEEK), polyetherimide (PEI), polyphenylsulfone
(PPSU), diphenyl sulfide (PPS) etc. suffers from the processing temperature much higher than common plastics and engineering plastics, and intensity is high, high temperature resistant,
It is resistant to chemical etching, solvent resistant.So the print temperature of this kind of material is very high, usually at 350-400 DEG C during 3D printing.
General backing material is unable to born 350-400 DEG C of high temperature currently on the market, the hot print that can be covered in print procedure
Layer boiling hotization or temperature distortion, and PVA and HIPS etc. and above-mentioned special engineering plastics caking property are undesirable, main body in print procedure
Material easily occurs to be detached from deformation and warpage.With the development of special engineering plastics 3D printing industrially, in the market to extraordinary work
The demand of the high temperature resistant backing material of engineering plastics printing will be more more and more urgent, and especially printout surface is more demanding, support
The process modeling of hardly possible removal.
Summary of the invention
Supporting line body prepared by the present invention solves the defect of the prior art, ensure that under high temperature environment, special engineered
During plastics 3D printing support section stablize establish, with special engineering plastics polyether-ether-ketone, polyetherimide, polyether sulfone,
The bondings such as polyether ketone ketone, polyphenylene sulfide, polyphenylsulfone well, while being put into asepsis environment-protecting solvent, support portion after the completion of product printing
Divide dissolution or swelling that can remove rapidly.
The preparation method of 3D printing backing material of the invention, chemical stability are high；Simple production process can be used existing
Double screw extruder preparation, it is easily prepared, be suitble to industrialized production, be conducive to the marketing of the 3D printing material.
The invention discloses a kind of 3D printing special engineering plastics backing materials, are composed of the following parts by weight:
75-90 parts of polycarbonate resin；
5-15 parts of reinforcing material；
1-10 parts of compatilizer；
2-5 parts of plasticiser；
0.1-3 parts of antioxidant.
Technical solution of the present invention adds reinforcing material, compatilizer using polycarbonate resin as main material, and plasticiser resists
Oxygen agent, ensure that the good 3D printing of material, and heat resistance is capable of forming good with the good caking property of special engineering plastics
Support construction, ensure that the stabilization of support section during special engineering plastics 3D printing is smoothly established, while product is beaten
It is put into nontoxic environmentally friendly solvent to dissolve or be swollen after the completion of print and can remove support rapidly, greatly shorten special engineered material and beat
The finishing time and process of printed document.Meanwhile backing material of the present invention substitutes the branch of expensive special engineering plastics at present
Support part point, can effectively reduce the integral material cost of printout.
Preferably, the polycarbonate resin is polycarbonate pure resin, polycarbonate, acrylonitrile-butadiene-benzene
One of ethylene copolymer, polyether-ether-ketone, polyetherimide, polyether sulfone, polyether ketone ketone, polyphenylene sulfide, polyphenylsulfone are a variety of
Blend.
Further, it is preferable that the polycarbonate resin is polycarbonate pure resin (PC), polycarbonate (PC) and third
Alkene nitrile-butadiene-styrene copolymer (ABS) blend, the blend of polycarbonate (PC) and polyether-ether-ketone (PEEK) gather
The blend of carbonic ester (PC) and polyetherimide (PEI), the blend of polycarbonate (PC) and polyether sulfone (PES), poly- carbonic acid
The blend of ester (PC) and polyether ketone ketone (PEKK), the blend of polycarbonate (PC) and polyphenylene sulfide (PPS), polycarbonate
(PC) with the blend of polyphenylsulfone (PPSU), polycarbonate (PC) and acrylonitrile-butadiene-styrene (ABS) (ABS) copolymer and poly-
The blend of ether ether ketone (PEEK), polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS) and polyether ketone ketone
(PEKK) blend, polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS) and polyphenylene sulfide (PPS)
Blend, the blend of polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS) and polyether sulfone (PES) gather
The blend of carbonic ester (PC) and acrylonitrile-butadiene-styrene copolymer (ABS) and polyetherimide (PEI), polycarbonate
(PC) with one of acrylonitrile-butadiene-styrene copolymer (ABS) and the blend of polyphenylsulfone (PPSU) or a variety of.
Preferably, in the polycarbonate resin content of polycarbonate account for the 50wt% of total polymer mass with
On.
Preferably, the reinforcing material is carbon fiber, glass fibre, basalt fibre, mineral fibres, graphite, graphite
One of alkene, silica, talcum powder, mica, calcium carbonate are a variety of.
Preferably, the compatilizer is silane coupling agent, titanate coupling agent, aluminate coupling agent, polycarbonate connect
Branch glycidyl methacrylate, polycarbonate grafted maleic anhydride, acrylonitrile-butadiene-styrene copolymer are grafted first
Base glycidyl acrylate, acrylonitrile-butadiene-styrene copolymer grafted maleic anhydride, polyolefin elastomer are grafted first
Base glycidyl acrylate, polyethylene to graft glycidyl methacrylate, gathers polyolefin elastomer grafted maleic anhydride
One of Vinyl Graft maleic anhydride is a variety of.
Preferably, the plasticiser is trioctyl trimellitate (TOTM), dioctyl phthalate, pentaerythrite stearic acid
One of ester, polyethylene wax, silicone, calcium stearate, zinc stearate are a variety of.
Preferably, the antioxidant is Hinered phenols antioxidant, in phosphite ester antioxidant, phosphoric acid ester antioxidant
It is one or more.
The present invention also provides a kind of preparation method of 3D printing special engineering plastics Special support material wire rod, the systems
Preparation Method the following steps are included:
S1, polycarbonate resin, reinforcing material, compatilizer, plasticiser and antioxidant are mixed in high-speed mixer
It closes, the material mixed；
S2, the material of the mixing is squeezed out by double screw extruder, cooling, pelletizing obtains the special engineered modeling of 3D printing
Expect Special support granular materials；
After S3, the 3D printing special engineering plastics Special support granular materials for obtaining the step S2 are dry, pass through list
Screw extruder extruded monofilament obtains 3D printing special engineering plastics Special support material wire rod.
Preferably, in the step S1, the mixing temperature mixed in high-speed mixer is 50-80 DEG C, incorporation time 10-
15min。
Preferably, in the step S2, the extrusion temperature of double screw extruder is 180-380 DEG C, screw speed 230-
290r/min；
In the step S3, the extrusion temperature of single screw extrusion machine is 180-380 DEG C, screw speed 250-270r/
min。
Beneficial effect
Due to the implementation of above technical scheme, the present invention has the advantage that compared with prior art
1. using polycarbonate resin as main material in the present invention, addition reinforcing material, compatilizer, plasticiser, antioxidant,
It ensure that the good 3D printing of material, heat resistance is capable of forming good support with the good caking property of special engineering plastics
Structure ensure that the stabilization of support section during special engineering plastics 3D printing is smoothly established, while product printing is completed
It is put into nontoxic environmentally friendly solvent to dissolve or be swollen afterwards and can remove support rapidly, greatly shorten special engineered file printing part
Finishing time and process.Meanwhile backing material of the present invention substitutes the support section of expensive special engineering plastics at present,
The integral material cost of printout can be effectively reduced.
2, the reinforcing material added in the present invention is inorganic material, and the product heat resistance produced will not be reduced, can be done
Its heat distortion temperature can also be improved to while enhancing.Such as, the heat distortion temperature of pure polycarbonate is 138 DEG C, works as addition
When the content of glass fibre increases to 5%, 10% and 15%, heat distortion temperature is respectively increased to 143 DEG C, 146 DEG C and 149 DEG C.
Detailed description of the invention
Invention is further described in detail with reference to the accompanying drawings and detailed description:
Fig. 1 is the model schematic of the 3D printing special engineering plastics for needing support construction of the invention；
Fig. 2 is the model schematic added after 3D printing special engineering plastics Special support material of the invention.
Specific embodiment
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to skill of the invention
Art scheme is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
By 75 parts of polycarbonate resins, 15 parts of carbon fibers, 5 parts of silane coupling agents, 4.5 parts of trioctyl trimellitate (TOTM)s, 0.5 part
Antioxidant 1010 and 168 (1010 and 168 mass ratioes be 2:1) 60 DEG C of mixing 15min in a high speed mixer, the object after mixing
Material squeezes out (extrusion temperature is 220 DEG C, screw speed 260r/min) through double screw extruder, is through air-cooled tie rod drag chain pelletizing
It obtains backing material and particle is blended.
Backing material is blended to be squeezed out after particle is dried in vacuo 4 hours at 80 DEG C into single screw extrusion machine and (squeeze out
Temperature is 250 DEG C, screw speed 250r/min), it is 1.75 that the melt of extrusion, which obtains diameter through water-carrying groove cooling, air-dried traction,
The monofilament wire rod of millimeter, entering back into after monofilament winding dry 6 hours at 80 DEG C in baking oven can be used, and obtain 3D printing special type work
Engineering plastics Special support material wire rod.
The 3D printing special engineering plastics Special support material wire rod completed is prepared with polyether-ether-ketone (PEEK) wire rod double
It is printed on nozzle printing machine, 130 DEG C of baseplate temp of printing, 80 DEG C of printing environment temperature, main body and backing material printable layer
Thickness is 0.2mm, main body and backing material print speed 50mm/s, and the print temperature of polyether-ether-ketone (PEEK) body spout is 400
DEG C, the nozzle print temperature of supporting line body is 300 DEG C.The product accuracy printed is higher, and backing material is preferably hanging
Physical location provides support.Printing product, which is put into ethyl acetate, took out product after 24 hours, dried, support section can use hand
Or auxiliary tool is removed easily, supports the supporting surface contacted with type body flat and smooth, products appearance is good.
Embodiment 2
By the blend of 80 parts of polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS) (PC and ABS's
Mass ratio is 70:30), 10 parts of glass fibres, 8 parts of polycarbonate grafted maleic anhydrides, 1.5 parts of dioctyl phthalates, 0.5
The antioxidant 1010 of part, 168 and triphenyl phosphate (the mass ratio 2:1:1 of antioxidant 1010, irgasfos 168 and triphenyl phosphate)
60 DEG C of mixing 15min in a high speed mixer, through double screw extruder extrusion, (extrusion temperature is 180 DEG C to the material after mixing, spiral shell
Bar revolving speed is 290r/min), particle is blended up to backing material through air-cooled tie rod drag chain pelletizing.
Backing material is blended to be squeezed out after particle is dried in vacuo 4 hours at 80 DEG C into single screw extrusion machine and (squeeze out
Temperature is 190 DEG C, screw speed 270r/min), it is 1.75 that the melt of extrusion, which obtains diameter through water-carrying groove cooling, air-dried traction,
The monofilament wire rod of millimeter, entering back into after monofilament winding dry 6 hours at 80 DEG C in baking oven can be used, and obtain 3D printing special type work
Engineering plastics Special support material wire rod.
The 3D printing special engineering plastics Special support material wire rod completed is prepared with polyether ketone ketone (PEKK) wire rod double
It is printed on nozzle printing machine, 110 DEG C of baseplate temp of printing, printing environment temperature 70 C, main body and backing material printable layer
Thickness is 0.2mm, main body and backing material print speed 50mm/s, and the print temperature of polyether ketone ketone (PEKK) body spout is 400
DEG C, the nozzle print temperature of supporting line body is 280 DEG C.The product accuracy printed is higher, and backing material is preferably hanging
Physical location provides support.Printing product, which is put into methyl acetate, took out product after 24 hours, dried, support section can use hand
Or auxiliary tool is removed easily, supports the supporting surface contacted with type body flat and smooth, products appearance is good.
Embodiment 3
By the blend (PC and PEEK mass ratio: 80:20) of 85 parts of polycarbonate (PC) and polyether-ether-ketone (PEEK), 10 parts
Talcum powder (1500 mesh), 3 parts of polyethylene to graft glycidyl methacrylate, 1.5 parts of dioctyl phthalate, 0.5
Part antioxidant 1010,168 and triphenyl phosphate (mass ratio of antioxidant 1010, irgasfos 168 and triphenyl phosphate be 2:1:
1) 60 DEG C of mixing 15min in a high speed mixer, material after mixing squeeze out through double screw extruder (extrusion temperature is 320 DEG C,
Screw speed is 290r/min), particle is blended up to backing material through air-cooled tie rod drag chain pelletizing.
Backing material is blended to be squeezed out after particle is dried in vacuo 4 hours at 80 DEG C into single screw extrusion machine and (squeeze out
Temperature is 350 DEG C, screw speed 250r/min), it is 1.75 that the melt of extrusion, which obtains diameter through water-carrying groove cooling, air-dried traction,
The monofilament wire rod of millimeter, entering back into after monofilament winding dry 6 hours at 80 DEG C in baking oven can be used, and obtain 3D printing special type work
Engineering plastics Special support material wire rod.
The 3D printing special engineering plastics Special support material wire rod completed and diphenyl sulfide (PPS) wire rod are prepared in double spray heads
It is printed on printer, prints 130 DEG C of baseplate temp, 75 DEG C of printing environment temperature, main body and backing material printing thickness are
0.2mm, main body and backing material print speed 50mm/s, the print temperature of diphenyl sulfide (PPS) body spout are 350 DEG C, support
The nozzle print temperature of wire rod is 380 DEG C.The product accuracy printed is higher, and backing material is preferably hanging physical location
Support is provided.Printing product, which is put into butyl acetate, took out product after 24 hours, dried, support section can use hand or backman
Tool is removed easily, supports the supporting surface contacted with type body flat and smooth, products appearance is good.
Embodiment 4
By 90 parts of polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS) and polyether ketone ketone (PEKK)
Blend (mass ratio of PC, ABS and PEEK are 50:20:40), 5 parts of graphenes (1000 mesh), 2 parts of polycarbonate are grafted Malaysia
Acid anhydrides, 2.5 parts of pentaerythritol stearates, 0.5 part of antioxidant 1010 and the 168 (quality of antioxidant 1010 and irgasfos 168
Than for 2:1) 60 DEG C of mixing 15min in a high speed mixer, material after mixing squeezes out that (extrusion temperature is through double screw extruder
380 DEG C, screw speed 290r/min), particle is blended up to backing material through air-cooled tie rod drag chain pelletizing.
Backing material is blended to be squeezed out after particle is dried in vacuo 4 hours at 80 DEG C into single screw extrusion machine and (squeeze out
Temperature is 380 DEG C, screw speed 260r/min), it is 1.75 that the melt of extrusion, which obtains diameter through water-carrying groove cooling, air-dried traction,
The monofilament wire rod of millimeter, entering back into after monofilament winding dry 6 hours at 80 DEG C in baking oven can be used, and obtain 3D printing special type work
Engineering plastics Special support material wire rod.
The 3D printing special engineering plastics Special support material wire rod completed and polyphenylsulfone (PPSU) wire rod are prepared in double sprays
It is printed on head printer, prints 130 DEG C of baseplate temp, 90 DEG C of printing environment temperature, main body and backing material print thickness
For 0.2mm, main body and backing material print speed 50mm/s, the print temperature of polyphenylsulfone (PPSU) body spout are 390 DEG C, branch
The nozzle print temperature for supportting wire rod is 380 DEG C.The product accuracy printed is higher, and backing material is preferably hanging entity portion
Position provides support.Printing product, which is put into epoxidized soybean oil, took out product after 24 hours, dried, support section can use hand or auxiliary
Assistant engineer's tool is removed easily, supports the supporting surface contacted with type body flat and smooth, products appearance is good.
Embodiment 5
By 80 parts of polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS) and polyetherimide (PEI)
Blend (mass ratio of PC, ABS and PEI be 70:20:10), 10 parts of silicon dioxide powders (2500 mesh), 4.5 parts of polycarbonate
Graft glycidyl methacrylate, 5 parts of silicone, 0.5 part of antioxidant 1010,168 and triphenyl phosphate (antioxidant 1010,
The mass ratio of irgasfos 168 and triphenyl phosphate is the material after 2:1:1) in a high speed mixer 60 DEG C of mixing 15min mixings
Squeeze out (extrusion temperature is 300 DEG C, screw speed 250r/min) through double screw extruder, through air-cooled tie rod drag chain pelletizing to obtain the final product
Particle is blended in backing material.
Backing material is blended to be squeezed out after particle is dried in vacuo 4 hours at 80 DEG C into single screw extrusion machine and (squeeze out
Temperature is 330 DEG C, screw speed 250r/min), it is 1.75 that the melt of extrusion, which obtains diameter through water-carrying groove cooling, air-dried traction,
The monofilament wire rod of millimeter, entering back into after monofilament winding dry 6 hours at 80 DEG C in baking oven can be used, and obtain 3D printing special type work
Engineering plastics Special support material wire rod.
The 3D printing special engineering plastics Special support material wire rod completed is prepared with polyetherimide (PEI) wire rod double
It is printed on nozzle printing machine, 130 DEG C of baseplate temp of printing, 80 DEG C of printing environment temperature, main body and backing material printable layer
Thickness is 0.2mm, main body and backing material print speed 50mm/s, and the print temperature of polyetherimide (PEI) body spout is 345
DEG C, the nozzle print temperature of supporting line body is 330 DEG C.The product accuracy printed is higher, and backing material is preferably hanging
Physical location provides support.Printing product, which is put into maleic acid castor oil ester, took out product after 24 hours, dried, support section
It can be removed easily with hand or auxiliary tool, support the supporting surface contacted with type body flat and smooth, products appearance is good.
Table 1 is the support interface of product made by Examples 1 to 5 and the specific data of printing appearance and printing precision.
Table 1
As shown in table 1, the 3D printing special engineering plastics Special support material of Examples 1 to 5 preparation, the system printed
Product precision is higher, shows that 3D printing special engineering plastics Special support material of the present invention is capable of forming good support construction, protects
The stabilization for having demonstrate,proved support section during special engineering plastics 3D printing is smoothly established, while being put into nothing after the completion of product printing
It is dissolved in the environmentally friendly solvent of poison or swelling can remove rapidly support, greatly shorten the post-processing of special engineering plastics 3D printing product
Period, the backing material replacement part of high special plastic material of main part as support originally, reduce entirety printed material at
This.
In conclusion the 3D printing special engineering plastics Special support material has high temperature resistant, glues with special engineering plastics
Knot property is good, prints smooth advantage；And simple production process is conducive to the marketing of the backing material, is pushed further into
The development of domestic special engineering plastics 3D printing industrialized production.
It should be noted that above-described embodiment can be freely combined as needed.The above is only of the invention preferred
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (10)
1. a kind of 3D printing special engineering plastics backing material, which is characterized in that be composed of the following parts by weight:
75-90 parts of polycarbonate resin；
5-15 parts of reinforcing material；
1-10 parts of compatilizer；
2-5 parts of plasticiser；
0.1-3 parts of antioxidant.
2. 3D printing special engineering plastics backing material according to claim 1, it is characterised in that；
The polycarbonate resin be polycarbonate pure resin, polycarbonate, acrylonitrile-butadiene-styrene copolymer,
One of polyether-ether-ketone, polyetherimide, polyether sulfone, polyether ketone ketone, polyphenylene sulfide, polyphenylsulfone or a variety of blends.
3. 3D printing special engineering plastics backing material according to claim 2, it is characterised in that；
The content of polycarbonate accounts for the 50wt% or more of total polymer mass in the polycarbonate resin.
4. 3D printing special engineering plastics backing material according to claim 1, it is characterised in that；
The reinforcing material be carbon fiber, glass fibre, basalt fibre, mineral fibres, graphite, graphene, silica,
One of talcum powder, mica, calcium carbonate are a variety of.
5. 3D printing special engineering plastics backing material according to claim 1, it is characterised in that；
The compatilizer is silane coupling agent, titanate coupling agent, aluminate coupling agent, polycarbonate grafted methacrylic acid
Ethylene oxidic ester, polycarbonate grafted maleic anhydride, acrylonitrile-butadiene-styrene copolymer grafted methacrylic acid shrink
Glyceride, acrylonitrile-butadiene-styrene copolymer grafted maleic anhydride, polyolefin elastomer grafted methacrylic acid shrink
Glyceride, polyolefin elastomer grafted maleic anhydride, polyethylene to graft glycidyl methacrylate, polycthylene grafted Malaysia
One of acid anhydrides is a variety of.
6. 3D printing special engineering plastics backing material according to claim 1, it is characterised in that；
The plasticiser be trioctyl trimellitate (TOTM), dioctyl phthalate, pentaerythritol stearate, polyethylene wax,
One of silicone, calcium stearate, zinc stearate are a variety of.
7. 3D printing special engineering plastics backing material according to claim 1, it is characterised in that；
The antioxidant is one of Hinered phenols antioxidant, phosphite ester antioxidant, phosphoric acid ester antioxidant or more
Kind.
8. a kind of preparation method of 3D printing special engineering plastics Special support material wire rod, including as appointed in claim 1-7
3D printing special engineering plastics backing material described in meaning one, which is characterized in that the preparation method comprises the following steps:
S1, polycarbonate resin, reinforcing material, compatilizer, plasticiser and antioxidant are mixed in high-speed mixer, is obtained
To the material of mixing；
S2, the material of the mixing is squeezed out by double screw extruder, cooling, it is special that pelletizing obtains 3D printing special engineering plastics
With support granular materials；
After S3, the 3D printing special engineering plastics Special support granular materials for obtaining the step S2 are dry, pass through single screw rod
Extruder extruded monofilament obtains 3D printing special engineering plastics Special support material wire rod.
9. the preparation method of 3D printing special engineering plastics Special support material wire rod according to claim 8, feature
It is；
In the step S1, the mixing temperature mixed in high-speed mixer is 50-80 DEG C, incorporation time 10-15min.
10. the preparation method of 3D printing special engineering plastics Special support material wire rod according to claim 8, feature
It is:
In the step S2, the extrusion temperature of double screw extruder is 180-380 DEG C, screw speed 230-290r/min；
In the step S3, the extrusion temperature of single screw extrusion machine is 180-380 DEG C, screw speed 250-270r/min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910755760.6A CN110437598A (en) | 2019-08-15 | 2019-08-15 | A kind of preparation method of 3D printing special engineering plastics backing material and its wire rod |
| PCT/CN2019/106035 WO2021027004A1 (en) | 2019-08-15 | 2019-09-16 | Support material for special engineering plastic for 3d printing, and preparation method for wire stock thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111334022A (en) * | 2020-02-07 | 2020-06-26 | 杭州喜马拉雅信息科技有限公司 | PC/ABS blending modified material for 3D printing high-adhesion base plate |
| CN113021877A (en) * | 2021-03-16 | 2021-06-25 | 杭州电子科技大学 | Preparation method of 3D printing patterned ion exchange membrane |
| CN113717377A (en) * | 2020-05-25 | 2021-11-30 | 中国科学院大连化学物理研究所 | Amorphous polyaryletherketone (sulfone) 3D printing polymer and preparation and printing methods thereof |
| CN115124808A (en) * | 2022-07-29 | 2022-09-30 | 北京理工大学珠海学院 | PC/ABS wire rod for low-temperature 3D printing and preparation method thereof |
| CN115181409A (en) * | 2022-08-19 | 2022-10-14 | 苏州奥美材料科技有限公司 | Modified polycarbonate composite material and preparation method and application thereof |
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| CN113021877A (en) * | 2021-03-16 | 2021-06-25 | 杭州电子科技大学 | Preparation method of 3D printing patterned ion exchange membrane |
| CN115124808A (en) * | 2022-07-29 | 2022-09-30 | 北京理工大学珠海学院 | PC/ABS wire rod for low-temperature 3D printing and preparation method thereof |
| CN115181409A (en) * | 2022-08-19 | 2022-10-14 | 苏州奥美材料科技有限公司 | Modified polycarbonate composite material and preparation method and application thereof |
| CN115181409B (en) * | 2022-08-19 | 2023-09-26 | 苏州奥美材料科技有限公司 | Modified polycarbonate composite material and preparation method and application thereof |
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| WO2021027004A1 (en) | 2021-02-18 |
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Application publication date: 20191112 |