CN110240779A - A kind of high-precision is without plug type stalk FDM 3D printing consumptive material and preparation method thereof - Google Patents
A kind of high-precision is without plug type stalk FDM 3D printing consumptive material and preparation method thereof Download PDFInfo
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- CN110240779A CN110240779A CN201910573122.2A CN201910573122A CN110240779A CN 110240779 A CN110240779 A CN 110240779A CN 201910573122 A CN201910573122 A CN 201910573122A CN 110240779 A CN110240779 A CN 110240779A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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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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- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses a kind of high-precisions without plug type stalk FDM 3D printing consumptive material and preparation method thereof, which is grouped as by following group: 25-85 parts of macromolecule raw material；15-75 parts of straw powder；0-5 parts of toughener；0-5 parts of compatilizer；0.1-1 parts of antioxidant；0-1 parts of lubricant；0-1 parts of toner；The preparation method is as follows: (1) impregnates the stalk of selection through alkaline solution, the ethanol solution of compatilizer dispersion, drying is added in centrifugation drying；(2) raw material is weighed according to the ratio, is uniformly mixed with batch mixer；(3) material mixed is put into double screw extruder and is extruded into item, through supercooling, air-dried, pelletizing, pellet is made；(4) pellet is put into 3D printing consumptive material single screw extrusion machine and is extruded into silk, through supercooling, tie rod is drawn in blower drying, winder be wound into disk to get.Raw material sources of the present invention are extensive, and the extrusion drawing process of prepared consumptive material, line footpath is accurate, and surface is smooth, and print procedure discharging is stablized without plug phenomenon, printed product impulse- free robustness, alice.
Description
Technical field
The invention belongs to field of polymer composite material, beat specifically, being related to a kind of high-precision without plug type FDM 3D
Print consumptive material and preparation method thereof.
Background technique
3D printing technique is a kind of data information based on threedimensional model, accumulates material successively to manufacture the side of entity component
Method.Currently available 3D printing technology has nearly 20 kinds, the most commonly used is fused glass pellet (FDM), 1988
Year invented by American, due to being simple and convenient to operate with printer arrangement, shaping speed is very fast, material category is abundant and at
Many advantages, such as this is low, environmentally friendly, has been applied to automobile manufacture, aviation, medical treatment, food processing, biomedicine, teaching, technique
The fields such as product, building are the 3D printings that current application field is most wide, maturity highest, application value are maximum and prospect is most wide
One of technology.
FDM technology forms manufacture system as non-laser, and great advantage is exactly that almost all of general-purpose plastics is all available
It prints, the materials such as mainly ABS, PLA, PC, PC/ABS, paraffin and polyester.FDM using Filamentous thermoplastic material as raw material,
Can be with adhesive materials such as powdery metal or agricultural crop straws, with filiform feed, material is heated fusing in spray head.Spray
Head is moved along part section profile and filling track, while the material of fusing being squeezed out, and material solidifies rapidly, and the material with surrounding
Material bonding.
External FDM technology is more mature than domestic, and molded article precision is high, forms the most thin reachable 0.4mm of wall thickness, is more able to satisfy
Industry needs, and application field is more extensive, but equipment cost is higher, almost the 4 of domestic equipment times, and printed material price is
It is researched and developed for device customizing, the price of material is more than 10 times of domestic material price.Domestic industry grade 3D printing equipment in addition at
This is lower outer, requires further to be promoted at many aspects such as quality of materials, printing precision.Although current country's FDM 3D printing
Technology is universal quickly, but is chiefly used in experimental teaching and ornameutal handiwork, it is difficult to carry out large-scale practical application.Raw material, matter
Amount and price are the principal elements for being still restriction 3D printing development.
Agricultural crop straw is the more remaining crop residues rich in fibre composition after seed harvest, mainly there is beans
The stalk of the crops such as class, crudefiber crop, potato, Cereal, oil Class and sugarcane, cotton, melon and fruit, tobacco, as in crops
Main byproduct, substantial amounts, while being also a kind of renewable biological source with multiclass purposes.The crops straw in China
Stalk resource is also in the status of high pollution, high consumption and low output substantially, and most of agricultural crop straws are all thrown aside or burned, nothing
Method is reasonably develop and useedd.To agricultural straw resource carry out integrated application to protection environment, economize on resources, increase receipts
Enter and promote agricultural sustainable development etc. to be of great significance.Stalk is used in the new material in 3D printing, not only can solve
Problem is received in peasant's agriculture, protects environment, moreover it is possible to which 3D can be significantly reduced in this way and beat for the new material that 3D printing is obtained after processing recycling
The cost of print.The life regular supplies such as wood grain tableware and vase, this use can be printed after processing with raw materials such as stalks
Agricultural crop straw has the texture and the distinctive faint scent of stalk of natural vegetation color through 3D printing product produced, makes to be printed
The product come has more woodiness touch, not only practical, also has ornamental value, and agricultural crop straw is used as the material of 3D printing, green
Environmental protection, future have very extensive application prospect.
But current stalk 3D printing material, mainly solution corrosion resistance, size, mechanical performance and mechanical property,
Such as high bending strength, high heat distortion temperature, high elongation at tear, and be a kind of single stalk, most materials still have
The problems such as extruded material is easy to break in print procedure, plug, precision is not high.
Summary of the invention
For the deficiency of existing issue, the object of the present invention is to provide a kind of extrusion processes without broken string, and print procedure is without sticking up
Song, burr, plug situation high-precision 3D printing consumptive material.The extrusion drawing process of prepared consumptive material, line footpath is accurate, surface light
Sliding, macromolecule stalk is uniformly mixed；The case where print procedure, discharging are stablized without plug phenomenon, printed product impulse- free robustness, alice；
After tested, prepared consumptive material all increases in impact, stretching and bending strength performance.
The technical solution used to solve the technical problems of the present invention is that:
A kind of high-precision is grouped as without plug type stalk FDM 3D printing consumptive material by the group of following mass fraction:
25-85 parts of macromolecule raw material；
15-75 parts of straw powder；
0.1-5 parts of toughener；
0.1-5 parts of compatilizer；
0.1-1 parts of antioxidant；
0.1-1 parts of lubricant；
0-1 parts of toner.
As the optimal technical scheme of the application, the macromolecule raw material be polyvinyl alcohol, polylactic acid (PLA), polyethylene,
Polypropylene (PP), acrylonitritrile-styrene resin, acrylonitrile-acrylate-styrene, acrylonitrile-butadiene-styrene (ABS)
(ABS), polyphenylsulfone, polyether sulfone, polyimides, liquid crystal polymer, polyether-ether-ketone, polyphenylene sulfide, polyethylene terephthalate
The bright olefin(e) acid formicester of ester -1,4 cyclohexane dimethanol ester, poly- methyl, two rouge of poly-succinic fourth, polycaprolactone, poly terephthalic acid second
Diol ester, polycarbonate, polyvinyl chloride, polyamide-imides, polyetherimide, polysulfones, polyether ketone ketone, polyether-ketone, polyphenyl
Ether, polyethylene terephthalate -1,4 cyclohexane dimethanol ester, poly- alkanoic acid rouge, polyformaldehyde, gather to benzene two polyvinyl chloride
At least one of formic acid butanediol ester, nylon, polystyrene.
As the optimal technical scheme of the application, the toughener be EVA, PU, TPO, TPE, TPV, TPU, TPEE, TPR,
The Bifunctionalized vinyl elastomer of acrylate, Ethylene-butyl Acrylate-methacrylic Acid Glycerin Ester Copolymer, silicon rubber
Glue, ACR, ABS high glue powder, SEPS, SBS, PBE, grafting POE, ethylene-methyl acrylate-glyceryl methacrylate without
Advise at least one of copolymer, EMA, MBS, SOE, SIS, SEBS, EPDM, POE.
As the optimal technical scheme of the application, the compatilizer is aluminate coupling agent, silane coupling agent, titanate esters idol
Join at least one of agent, maleic anhydride grafts.
As the optimal technical scheme of the application, the antioxidant be sulfuric acid ester, hindered amines, phosphorous acid esters, by
Hinder at least one of phenols.
As the optimal technical scheme of the application, the lubricant is wax class, in silicone, amides, stearic acid
It is at least one.
As the optimal technical scheme of the application, the straw powder need to pass through following processing step: stalk through drying, grind
Mill, crushing, screening are obtained having a size of the above stalk powder of 200 mesh.
Preparation method of the above-mentioned high-precision without plug type stalk FDM 3D printing consumptive material, includes the following steps:
(1) stalk of selection is pulverized and sieved and is impregnated by alkaline solution, the ethyl alcohol of compatilizer dispersion is added in centrifugation drying
Solution, drying obtain stalk powder；
(2) each component raw material is weighed according to the ratio, and is uniformly mixed with batch mixer；
(3) material mixed is put into double screw extruder and is extruded into item, through supercooling, air-dried, pelletizing, height is made
Precision is without plug type stalk FDM 3D printing consumptive material pellet；
(4) pellet of well cutting is put into 3D printing consumptive material single screw extrusion machine and is extruded into silk, wind cooling through water-carrying groove
Machine drying, draws tie rod, and winder is wound into disk, and high-precision is made without plug type stalk FDM 3D printing consumptive material.
As the optimal technical scheme of the application, the specific steps method of the step (1) is as follows: by the straw powder of selection
Broken, ground 200-300 mesh sieve, be made powder, by powder be put into concentration be 3% strong base solution impregnate 0.5h, centrifuge washing,
It is put into mixed solution made from compatilizer and 95% ethanol-water solution, stirs 0.5h, is put into 120 DEG C of baking ovens dry 5h, grinding
Obtain stalk powder；By above-mentioned weighed raw material by mixed at high speed 5-10min, the uniform experimental raw of component is obtained.
As the optimal technical scheme of the application, in the step (3), the machine warm area set temperature of double screw extruder
It is 190-240 DEG C.
As the optimal technical scheme of the application, in the step (4), 3D printing consumptive material single screw extrusion machine melting extrusion
Temperature be 190-240 DEG C.
As the optimal technical scheme of the application, in the step (4), material silk after cooling and solidifying by drawing, calibrating,
Storage line process adjusts gauge or diameter of wire by the speed of service of screw speed and dragger, and the diameter range of wire rod is 1.73-
1.77mm；Screw speed is 90-200rpm, and dragger revolving speed is 120-250rpm.
Beneficial effect
Compared with prior art, the invention has the following beneficial effects: 3D printing is combined with stalk material, stalk material
Material aspect, reduces the waste and environmental pollution of farm crop straw organism matter resource, reduces the cost of material, and low-carbon environment-friendly improves
The high-valued of farm crop straw organism matter resource, circulation are renewable, comprehensively utilize；In terms of 3D printing, raw material sources are extensive,
Overall manufacturing cost, and the extrusion drawing process of prepared consumptive material are reduced, line footpath is accurate, and surface is smooth, macromolecule stalk
It is uniformly mixed, the case where print procedure discharging is stablized without plug phenomenon, printed product impulse- free robustness, alice, prepared consumptive material is rushing
Hit, stretch and bending strength performance on all increase.
The addition of usual stalk powder has necessarily affected the printing fluency of high molecular material: stalk particle is easy to accumulate in
It print printer can not, stalk integrating materials will cause print head and spit when uneven expects that unevenness causes burr, breaks
The case where layer.The present invention selects elastomer flexibilizer that stalk 3D printing consumptive material is not only made fracture of wire do not occur in drawing process
Situation, and by the ratio of allotment toughener and compatilizer, so that toughener and basis material wrap up stalk particle uniformly,
The melt flow rate (MFR) of material is stablized in 10-30g/10min, a preferable print range, so that 3D printing consumptive material is got
Product impulse- free robustness tomography plug the phenomenon that, realize high-precision printing.
Specific embodiment
The present invention is described in further details with reference to embodiments.Production is not specified in agents useful for same or instrument and equipment
Manufacturer, it is accordingly to be regarded as the conventional products that can be bought by market.
Embodiment 1
(1) configuration experimental material: ABS757:25kg, antioxidant 1010: 0.025Kg, antioxidant is matched according to following components
168:0.05kg, lubricant TAS-2A:0.075kg, aluminate coupling agent: 0.15Kg, straw powder: 5kg, SBS:3Kg, red color
Powder: 0.1kg.
(2) straw powder need to be by pretreatment: the stalk of selection is crushed, ground 200 mesh sieve, powder is made,
It is that 3%NaOH solution impregnates 0.5h that powder, which is put into concentration, and centrifuge washing, is put into aluminate coupling agent and 95% alcohol-water is molten
Mixed solution made from liquid stirs 0.5h, is put into 120 DEG C of baking ovens dry 5h, and grinding obtains stalk powder.It will be above-mentioned weighed
Raw material obtains the uniform experimental raw of component by mixed at high speed 10min.
(3) raw material obtained above is squeezed out by Couble screw rod high-temp melt extruder, the temperature that machine warm area is set as
210-240 DEG C, experiment material passes through tie rod, and cold water is cooling, and hair dryer air-dries, and machine pelletizing obtains uniformly full pellet.
(4) obtained pellet is placed in 3D printing single screw rod consumptive material extruder melting extrusion, wherein the temperature of 6 sections of warm areas
It is 235 DEG C, 235 DEG C, 240 DEG C, 240 DEG C, 235 DEG C, 230 DEG C.
(5) material strip that melting is kneaded by head extrusion is cooling by cold rinse bank.
(6) cool and solidify after material silk through traction, calibrate, storage line process, pass through the operation of screw speed and dragger
Speed, adjusts gauge or diameter of wire, and the diameter range of wire rod is 1.73-1.77mm.Screw speed is 200rpm, and dragger revolving speed is
250rpm。
(7) consumptive material of line footpath qualification is carried out being wound into disk, winding length is 225m, and the wire rod weight of every disk is 1kg.
(8) consumptive material that winding is completed is vacuum-packed using vacuum packing machine, finally obtains consumptive material.
Embodiment 2
(1) configuration experimental material: PLA 4032D:50kg, antioxidant 1076: 0.05Kg, antioxygen is matched according to following components
Agent 1098:0.1kg, silane coupling agent KH560:0.5Kg, stalk: 10kg, TPU:8Kg, Lubricate EBS: 0.5Kg.
(2) straw powder need to be by pretreatment: the stalk of selection is crushed, ground 250 mesh sieve, powder is made,
It is that 3%KOH solution impregnates 0.5h that powder, which is put into concentration, and centrifuge washing is put into compatilizer KH560 and 95% ethanol-water solution
Mixed solution obtained stirs 0.5h, is put into 120 DEG C of baking ovens dry 5h, and grinding obtains stalk powder.By above-mentioned weighed original
Material obtains the uniform experimental raw of component by mixed at high speed 5min.
(3) uniformly mixed material is put into double screw extruder to squeeze out, is 200-210 DEG C set by heating zone,
It squeezes out, is air-dried by cooling water cooling, blower, machine pelletizing at a temperature of this, stalk PLA material grain is made.
(4) obtained pellet is placed in 3D printing single screw rod consumptive material extruder melting extrusion, wherein the temperature of 6 sections of warm areas
It is 190 DEG C, 200 DEG C, 205 DEG C, 200 DEG C, 200 DEG C, 200 DEG C.
(5) strands of extrusion are cooling, by drawing, calibrating, storage line, screw speed is set as 120rpm, and dragger turns
Speed is set as 160rpm, and the diameter control range of wire rod is 1.74-1.76mm.
(6) consumptive material of line footpath qualification is carried out being wound into disk, winding length is 225m, and the wire rod weight of every disk is 1kg.
(7) consumptive material that winding is completed is vacuum-packed using vacuum packing machine, finally obtains consumptive material.
Embodiment 3
(1) configuration experimental material: PP CJS-700:50kg, antioxidant 616:0.06Kg, antioxygen is matched according to following components
Agent 317:0.1kg, Lubricate EBS: 0.15kg, Silane coupling agent KH550: 0.3Kg, stalk: 15kg, EVA630:8Kg.
(2) straw powder need to be by pretreatment: the stalk of selection is crushed, ground 300 mesh sieve, powder is made,
It is that 3%KOH solution impregnates 0.5h that powder, which is put into concentration, and centrifuge washing is put into compatilizer KH550 and 95% ethanol-water solution
Mixed solution obtained stirs 0.5h, is put into 120 DEG C of baking ovens dry 5h, and grinding obtains stalk powder.By above-mentioned weighed original
Material obtains the uniform experimental raw of component by mixed at high speed 5min.
(3) raw material obtained above is squeezed out by Couble screw rod high-temp melt extruder, the temperature that machine warm area is set as
190-205 DEG C, experiment material passes through tie rod, and cold water is cooling, and hair dryer air-dries, and machine pelletizing obtains uniformly full pellet.
(4) obtained pellet is placed in 3D printing single screw rod consumptive material extruder melting extrusion, wherein the temperature of 6 sections of warm areas
It is 190 DEG C, 190 DEG C, 190 DEG C, 190 DEG C, 190 DEG C, 190 DEG C.
(5) material strip that melting is kneaded by head extrusion is cooling by cold rinse bank, wherein the temperature of cooling water is set as
25℃。
(6) cool and solidify after material silk through traction, calibrate, storage line process, pass through the operation of screw speed and dragger
Speed, adjusts gauge or diameter of wire, and the diameter range of wire rod is 1.74-1.76mm.Screw speed is 90rpm, and dragger revolving speed is
120rpm。
(7) consumptive material of line footpath qualification is carried out being wound into disk, winding length is 222m, and the wire rod weight of every disk is 1kg.
(8) consumptive material that winding is completed is vacuum-packed using vacuum packing machine, finally obtains consumptive material.
Measure of merit
The 3D printing consumptive material performance of embodiment 1-3 is detected, as a result as shown in the table:
The 3D printing consumptive material performance test of 1 embodiment 1-3 of table
| Project | Testing standard | Unit | Test condition | Numerical value 123 |
| Tensile strength | ISO527 | MPa | 50mm/min | 50.3,34.7,25.8 |
| Bending strength | ISO178 | MPa | 50mm/min | 67.6,43.3,32.4 |
| Impact strength | ISO180 | KJ/m2 | 4.0mm,23℃ | 28.5,5.9,13.2 |
| Melt index | ISO1133 | g/10min | 2.16kg | 16.4,14.6,16.1 |
Protection content of the invention is not limited to above embodiments.Without departing from the spirit and scope of the invention, originally
Field technical staff it is conceivable that variation and advantage be all included in the present invention, and with the attached claims be protection
Range.
Claims (10)
1. a kind of high-precision is without plug type stalk FDM 3D printing consumptive material, which is characterized in that by the group of following mass fraction
It is grouped as:
25-85 parts of macromolecule raw material；
15-75 parts of straw powder；
0.1-5 parts of toughener；
0.1-5 parts of compatilizer；
0.1-1 parts of antioxidant；
0.1-1 parts of lubricant；
0-1 parts of toner.
2. high-precision according to claim 1 is without plug type stalk FDM 3D printing consumptive material, which is characterized in that described
Macromolecule raw material is polyvinyl alcohol, polylactic acid, polyethylene, polypropylene, acrylonitritrile-styrene resin, acrylonitrile-acrylic acid
Ester-styrene, polyphenylsulfone, polyether sulfone, polyimides, liquid crystal polymer, polyether-ether-ketone, gathers acrylonitrile-butadiene-styrene (ABS)
The bright olefin(e) acid formicester of diphenyl sulfide, polyethylene terephthalate -1,4 cyclohexane dimethanol ester, poly- methyl, poly-succinic fourth two
Rouge, polycaprolactone, polyethylene terephthalate, polycarbonate, polyvinyl chloride, polyamide-imides, polyetherimide,
Polysulfones, polyether ketone ketone, polyether-ketone, polyphenylene oxide, polyethylene terephthalate -1,4 cyclohexane dimethanol ester, polyvinyl chloride,
At least one of poly- alkanoic acid rouge, polyformaldehyde, polybutylene terephthalate (PBT), nylon, polystyrene.
3. high-precision according to claim 1 is without plug type stalk FDM 3D printing consumptive material, which is characterized in that described
Toughener is EVA, PU, TPO, TPE, TPV, TPU, TPEE, TPR, the Bifunctionalized vinyl elastomer of acrylate, ethylene-the third
Olefin(e) acid butyl ester-glycidyl methacrylate copolymer, silicon rubber, ACR, ABS high glue powder, SEPS, SBS, PBE, grafting
POE, ethylene-methyl acrylate-glyceryl methacrylate random copolymer, EMA, MBS, SOE, SIS, SEBS, EPDM,
At least one of POE.
4. high-precision according to claim 1 is without plug type stalk FDM 3D printing consumptive material, which is characterized in that described
Compatilizer is at least one of aluminate coupling agent, silane coupling agent, titanate coupling agent, maleic anhydride grafts.
5. high-precision according to claim 1 is without plug type stalk FDM 3D printing consumptive material, which is characterized in that described
Antioxidant is at least one of sulfuric acid ester, hindered amines, phosphorous acid esters, Hinered phenols.
6. high-precision according to claim 1 is without plug type stalk FDM 3D printing consumptive material, which is characterized in that described
Lubricant is at least one of wax class, silicone, amides, stearic acid.
7. high-precision according to claim 1 is without plug type stalk FDM 3D printing consumptive material, which is characterized in that described
Straw powder need to pass through following processing step: stalk is obtained through drying, grinding, crushing, screening having a size of the above straw powder of 200 mesh
End.
8. preparation method of the high-precision described in claim 1 without plug type stalk FDM 3D printing consumptive material, feature exist
In including the following steps:
(1) stalk of selection is pulverized and sieved, is impregnated by alkaline solution, it is molten that the ethyl alcohol that compatilizer disperses is added in centrifugation drying
Liquid, drying obtain stalk powder；
(2) each component raw material is weighed according to the ratio, and is uniformly mixed with batch mixer；
(3) material mixed is put into double screw extruder and is extruded into item, through supercooling, air-dried, pelletizing, high-precision is made
Without plug type stalk FDM 3D printing consumptive material pellet；
(4) pellet of well cutting is put into 3D printing consumptive material single screw extrusion machine and is extruded into silk, cooling through water-carrying groove, blower is blown
It is dry, tie rod is drawn, winder is wound into disk, and high-precision is made without plug type stalk FDM 3D printing consumptive material.
9. preparation method of the high-precision according to claim 8 without plug type stalk FDM 3D printing consumptive material, feature
It is, in the step (3), the machine warm area set temperature of double screw extruder is 190-240 DEG C.
10. preparation method of the high-precision according to claim 8 without plug type stalk FDM 3D printing consumptive material, special
Sign is, in the step (4), material silk after cooling and solidifying by draw, calibrating, storage line process, by screw speed with lead
Draw the speed of service of machine, adjust gauge or diameter of wire, the diameter range of wire rod is 1.73-1.77mm；Screw speed is 90-200rpm,
Dragger revolving speed is 120-250rpm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123620A (en) * | 2020-09-15 | 2020-12-25 | 东莞市瑞年塑胶科技有限公司 | Preparation process of polypropylene composite material film based on bio-based wheat straw |
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| CN112670879A (en) * | 2020-12-28 | 2021-04-16 | 国网河南省电力公司检修公司 | SF6 gas leakage stoppage process for high-voltage combined electrical apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112123620A (en) * | 2020-09-15 | 2020-12-25 | 东莞市瑞年塑胶科技有限公司 | Preparation process of polypropylene composite material film based on bio-based wheat straw |
| CN112123620B (en) * | 2020-09-15 | 2021-07-16 | 瑞年科技(广东)有限公司 | Preparation process of polypropylene composite material film based on bio-based wheat straw |
| CN112300552A (en) * | 2020-11-11 | 2021-02-02 | 深圳市华海天贸科技有限公司 | Degradable 3D printing consumable and preparation method thereof |
| CN112670879A (en) * | 2020-12-28 | 2021-04-16 | 国网河南省电力公司检修公司 | SF6 gas leakage stoppage process for high-voltage combined electrical apparatus |
| CN112670879B (en) * | 2020-12-28 | 2023-12-08 | 国网河南省电力公司超高压公司 | SF6 gas plugging process for high-voltage combined electrical apparatus |
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