CN108587091A - A kind of biodegradable 3D printing wire rod and preparation method thereof based on peanut shell - Google Patents
A kind of biodegradable 3D printing wire rod and preparation method thereof based on peanut shell Download PDFInfo
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- CN108587091A CN108587091A CN201810400978.5A CN201810400978A CN108587091A CN 108587091 A CN108587091 A CN 108587091A CN 201810400978 A CN201810400978 A CN 201810400978A CN 108587091 A CN108587091 A CN 108587091A
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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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- 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
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/02—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from cellulose, cellulose derivatives, or proteins
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/18—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from other substances
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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
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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Abstract
The invention discloses a kind of biodegradable 3D printing wire rod based on peanut shell, is grouped as by the group of following parts by weight：2~3 parts of 70~80 parts of polylactic acid, 20~50 parts of peanut shell, 5~10 parts of modified calcium carbonate powder, 0.2~0.8 part of coupling agent, 2~3 parts of plasticizer and antioxidant.Part polylactic acid is substituted using peanut shell, addition calcium carbonate powder, plasticizer and antioxidant manufacture 3D printing wire rod, and the tensile strength of gained wire rod is more than 35MPa, and impact strength is more than 30J/m2, manufacturing cost can reduce by 30% or so.
Description
Technical field
The present invention relates to 3D printing Material Field technical fields, and in particular to a kind of biodegradable 3D based on peanut shell
Print wire rod and preparation method thereof.
Background technology
3D printing can directly generate complicated Free-form Surface Parts from CAD (CAD) model, be emerging
Manufacturing technology.3D printing conventional process method includes fusion sediment, ink jet printing, laser sintered, photopolymerization etc..Melt Deposition Modeling
(FDM) technological design is simple and reliable, it is considered to be most common 3D printing method.The material that FDM techniques use is mainly
Thermoplastic polymer, including it is acrylonitrile-butadiene-styrene copolymer (ABS), polylactic acid (PLA), makrolon (PC), poly-
Macromolecules and its composite materials such as vinyl alcohol (PVA), polyether-ether-ketone (PEEK).PLA is extracted by reproducible plant resources
The starch gone out is as made of raw material, being biodegradable environmentally friendly material, and thermal stability is good, processing temperature
170~230 DEG C, the solvent resistance having had can be processed with various ways.The product made of polylactic acid is biodegradable except energy
Outside, biocompatibility, glossiness, the transparency, feel and heat-resist, some polylactic acid also have certain antibiotic property, fire-retardant
Property and ultraviolet-resistent property, are one of most common materials in FDM melting extrusions.PLA prices are relatively expensive at present, to cause
The holding at high price of PLA base 3D printing materials, limits the development of 3D printing technique.
China is peanut production big country, and cultivated area occupies the second in the world, and annual output ranks first in the world.Peanut shell contains largely
Organic matter, such as lignin, cellulose, protein, sitosterol, saponin, wherein lignin have the spy for increasing toughness of material
Point.It is generally not high to the producing level of peanut shell both at home and abroad at present, it rests on mostly and peanut shell is milled to powder for raising domestic animal
Poultry, or use fuel combustion as, though the former is used for feed, dosage is few, and the latter can generate pollution to environment.
Using the high feature of Fiber and lignin concentration in peanut shell, a kind of biodegradable based on peanut shell is developed
3D printing wire rod can not only reduce the manufacturing cost of 3D printing wire rod, and can play peanut shell highest efficiency.
Invention content
It is high to solve polylactic acid 3D printing wire rod manufacturing cost in the prior art, good mechanical property, low can not be had both
The technical issues of cost and 3D printing performance, the present invention provide a kind of biodegradable 3D printing wire rod based on peanut shell, adopt
Part polylactic acid is substituted with peanut shell, addition calcium carbonate powder, plasticizer and antioxidant manufacture 3D printing wire rod, be manufactured into
This is low, obtained printing wire rod good mechanical performance, extrusion performance stabilization.
The technical solution adopted by the present invention is that：
A kind of biodegradable 3D printing wire rod based on peanut shell, is grouped as by the group of following parts by weight：Polylactic acid 70
~80 parts, 20~50 parts of peanut shell, 5~10 parts of calcium carbonate, 0.2~0.8 part of coupling agent, 2~3 parts of plasticizer and antioxidant 2~3
Part, the mesh number of the calcium carbonate is 80~120 mesh.
Peanut shell is mainly made of lignin, cellulose and hemicellulose, and the content of wherein cellulose accounts for 60% or so, wood
The content of quality accounts for 30% or so.The basic structural unit of lignin is guaiaci lignum phenolic group propane, lilac base propane and to hydroxyl
Base propane, it has aromatic radical and aliphatic hydroxyl, can be used as the active site of chemical modification, and small molecule lignin is lived by it
Property site be grafted on the macromolecular chain of polylactic acid, improve polylactic acid macromolecular chain flexibility, that is, effectively increase wire rod can
Plasticity and toughness.Contain abundant tannin and crude protein in peanut shell, can be reacted with the activity hydroxy etc. in adhesive, has and increase
The function of adding bonding strength improves the mechanical property of wire rod.Peanut shell used in the present invention is extra large peanut shell, Shandong peanut shell, little Bai
The one or more of husky peanut shell weight.Calcium carbonate can increase the toughness of wire rod, and reaction mechanism is：When wire rod is by external force
When blastic deformation, because calcium carbonate exists, stress concentration effect is will produce, its surrounding matrix is made to surrender, generates splitting on microcosmic
Line (also refers to crazing), and crazing passes to next calcium carbonate particle again, gradually transmits, since matrix yielding can absorb a large amount of energy
Amount, therefore generate toughening effect.Researcher has found that addition mesh number is that wire rod toughness made from the calcium carbonate of 80~120 mesh is preferable.
The interface compatibility for being added to improve polylactic acid and calcium carbonate of coupling agent, promotes the mechanical property of wire rod.Addition plasticising
Agent can be obviously improved the compatibility of polylactic acid and play good plasticization effect, can be obviously improved the mobility of melt, and raising is beaten
Print performance.The oxidation resistance of material can be improved in addition antioxidant, so that wire rod degradation amount in preparation and print procedure is reduced, system
The wire rod service life obtained extends.Polylactic acid, peanut shell, calcium carbonate, coupling agent, plasticizer and antioxidant compounding also have collaboration to make
Effect.
In order to improve the print performance and mechanical property of gained wire rod, the preferably described polylactic acid is U.S. Natureworks
The polylactic acid of the trade mark 4032D of company's production.
In order to improve the print performance and mechanical property of gained wire rod, the coupling agent is silane coupling agent, titanate esters idol
Join at least one of agent, aluminate coupling agent, chromium complex coupling agent.
In order to improve the print performance and mechanical property of gained wire rod, preferred plasticizer is dibutyl phthalate, neighbour
At least one of phthalic acid dinonyl, di-n-octyl phthalate.
In order to improve the antioxygenic property of gained wire rod, the preferably described antioxidant is tea polyphenols, phytic acid, 2,6-, bis- tertiary fourths
At least one of base -4- methylphenols, butylated hydroxy anisole.
A kind of preparation method of above-mentioned 3D printing wire rod, includes the following steps：
(1) peanut shell is put into grinder and is ground, obtain the peanut shell powder of 80~120 mesh after screening；
(2) peanut shell powder obtained by step (1) is dry in drying case；
(3) take parts by weight 0.03~0.2 part of 0.3~1.5 part of 5~10 parts of calcium carbonate, ethyl alcohol, water and coupling agent 0.2~
0.8 part is mixed evenly, and obtains calcium carbonate mixture；
(4) polylactic acid, plasticizer, antioxidant, step (2) gained peanut shell powder and step (3) institute are taken by setting ratio
Calcium carbonate mixture is obtained, is added in mixing machine and uniformly mixes, obtain raw mixture；
(5) raw mixture obtained by step (4) is added to melting extrusion in double screw extruder, be granulated, drawn
Silk composition；
(6) wire drawing composition obtained by step (5) is added to bracing wire in single screw extrusion machine, control sink temperature is 10 DEG C
Meet the printing wire rod of 3D printing wire rod requirement between~60 DEG C to get diameter.
Further, it is preferable to which step (2) described drying temperature is 55~65 DEG C, drying time is 6~10h.
Further, it is preferable to which the first section heating temperature of step (4) described extruder is 30~80 DEG C, the second section adds
Hot temperature is 80~120 DEG C, and third section heating temperature is 120~165 DEG C, and the 4th section heating temperature is 165~200 DEG C,
5th section heating temperature is 200~220 DEG C, and the 6th section heating temperature is 200~210 DEG C, extruder head temperature 195~205
℃。
Further, step (6) described sink is equipped with two sections, and first segment sink temperature is 40~60 DEG C, the second sink temperature
Degree is 10~30 DEG C.
The preparation method of the present invention is obtained and peanut shell similar in powdered whiting powder mesh number by step (1) grinding
Powder, it is good that the two mixes its compatibility, wire rod high mechanical properties obtained；Lignin in peanut shell is further increased by grinding
With the reactivity of total fiber element, reaction effect when enhancing peanut shell is compounded with other components, wire rod mechanical property obtained
Height, plasticity are good.
The preparation method of the present invention, by the dry moisture reduced in peanut shell powder of step (2), because of the presence meeting of water
Making wire rod, PLA degrades during the addition process, and wire rod obtained will produce bubble in print procedure, influence appearance.It grinds
Study carefully personnel and find that drying temperature and time have an impact the effect of peanut shell compounding reaction, drying temperature is 55~65 DEG C, does
The dry time is that 24~3h is a preferable range of choice.
The preparation method of the present invention, is modified calcium carbonate by step (3), in ethanol water, coupling agent is equal
Even dispersion is coated on calcium carbonate surface, plays the function served as bridge of connection calcium carbonate and polylactic acid so that calcium carbonate and polylactic acid
Interface compatibility greatly improves.
The preparation method of the present invention, passes through polylactic acid, modified calcium carbonate powder, coupling agent, plasticizer, antioxidant and flower
Raw shell powder melts are blended compounding and obtain the modification PLA wire rods based on peanut shell, and plasticizing quality can be improved in double-helical screw mechanism,
And extrusion temperature is substantially reduced, mechanics and the excellent silk material of environmental-protecting performance are finally prepared in wire drawing machine.
3D printing wire rod prepared by the present invention；Its tensile strength is more than 35MPa, and impact strength is more than 30J/m2, compared to
Its manufacturing cost of existing polylactic acid printing wire rod can reduce by 30% or so.
Specific implementation mode
Raw materials used in following embodiment is market purchasing.Peanut shell used is extra large peanut shell, Shandong peanut shell or little Bai
Husky peanut shell.
The detection method of the mechanical property of gained 3D printing wire rod is in following embodiment：Have by Chengde microtest machine
Limit company (WDT-W) micro-control type electronic universal tester measures its tensile strength and bending strength；Pass through Chengde microtest machine
Co., Ltd's radial-boom impact tester measures its impact strength.
The detection method of the print performance of gained 3D printing wire rod is in following embodiment：Have by Chengde microtest machine
Limit company Melt Flow Rate Measurer measures its melt flow rate (MFR).
The technical solution and effect further illustrated the present invention referring to embodiment and comparative example.
Embodiment 1
(1) it takes suitable extra large peanut shell to be put into grinder to grind, obtains the peanut shell powder of 100 mesh after screening；
(2) 6 hours dry at 65 DEG C by peanut shell powder obtained by step (1) in drying case；
(3) 0.03 part of 0.3 part of 5 parts of calcium carbonate, ethyl alcohol, the water of parts by weight and 0.2 part of silane coupling agent is taken to be mixed equal
It is even, obtain calcium carbonate mixture；
(4) polylactic acid 70g, dioctyl phthalate 2g, tea polyphenols 2g, the extra large peanut shell powder of step (2) gained are taken
Calcium carbonate mixture 5.23g is added in mixing machine obtained by 20g, step (3), is stirred under low whipping speed 2000r/min
5min obtains raw mixture；
(5) raw mixture obtained by step (4) is added to melting extrusion in double screw extruder, be granulated, drawn
Silk composition；The screw speed of extruder is 20~30r/min, and the first section heating temperature of extruder is 30 DEG C, the secondth area
Section heating temperature is 80 DEG C, and third section heating temperature is 120 DEG C, and the 4th section heating temperature is 165 DEG C, the heating of the 5th section
Temperature is 200 DEG C, and the 6th section heating temperature is 200 DEG C；195 DEG C of extruder head temperature.
(6) wire drawing composition obtained by step (5) is added to bracing wire in single screw extrusion machine, control control first segment sink
Temperature is 40 DEG C, and second segment sink temperature is 10 DEG C to get the printing wire rod that diameter must be 1.75 millimeters.
The performance for measuring 1 gained printing wire rod of embodiment is shown in Table 1.
Embodiment 2
(1) it takes suitable extra large peanut shell, Shandong peanut shell to be put into grinder and grind, obtains 80 mesh powders after screening；
(2) 10 hours dry at 55 DEG C by peanut shell powder obtained by step (1) in drying case；
(3) 0.2 part of 0.8 part of 10 parts of calcium carbonate, ethyl alcohol, water and 0.8 part of mixing of titanate coupling agent of parts by weight are taken
Uniformly, calcium carbonate mixture is obtained；
(4) polylactic acid 80g, diisononyl phthalate 3g, phytic acid 3g, the extra large peanut shell powder of step (2) gained are taken
Calcium carbonate mixture 11g is added in mixing machine obtained by 50g, step (3), and 5min is stirred under low whipping speed 2000r/min,
Obtain raw mixture；
(5) raw mixture obtained by step (4) is added to melting extrusion in double screw extruder, be granulated, drawn
Silk composition；The screw speed of extruder is 20~30r/min, and the first section heating temperature of extruder is 80 DEG C, the secondth area
Section heating temperature is 120 DEG C, and third section heating temperature is 165 DEG C, and the 4th section heating temperature is 200 DEG C, and the 5th section adds
Hot temperature is 220 DEG C, and the 6th section heating temperature is 210 DEG C；205 DEG C of extruder head temperature
(6) wire drawing composition obtained by step (5) is added to bracing wire in single screw extrusion machine, control control first segment sink
Temperature is 60 DEG C, and second segment sink temperature is 30 DEG C to get the 3D printing wire rod that diameter must be 1.75 millimeters.
The performance for measuring 2 gained printing wire rod of embodiment is shown in Table 1.
Embodiment 3
(1) suitable small white sand peanut shell, extra large peanut shell, Shandong peanut shell is taken to be put into grinder and grind, after screening
To 100 mesh powders；
(2) 8 hours dry at 60 DEG C by peanut shell powder obtained by step (1) in drying case；
(3) 0.3 part of 0.1 part of 1 part of 8 parts of calcium carbonate, ethyl alcohol, water, the aluminate coupling agent and silane coupling agent of parts by weight are taken
0.2 part is mixed evenly, and obtains calcium carbonate mixture；
(4) polylactic acid 75g, dibutyl phthalate 3g, 2,6 di tert butyl 4 methyl phenol 3g, step (2) institute are taken
It obtains calcium carbonate mixture 8.6g obtained by extra large peanut shell powder 30g, step (3) to be added in mixing machine, low whipping speed 2000r/min
Under be stirred 5min, obtain raw mixture；
(5) raw mixture obtained by step (4) is added to melting extrusion in double screw extruder, be granulated, drawn
Silk composition；The screw speed of extruder is 20~30r/min, and the first section heating temperature of extruder is 50 DEG C, the secondth area
Section heating temperature is 100 DEG C, and third section heating temperature is 140 DEG C, and the 4th section heating temperature is 180 DEG C, and the 5th section adds
Hot temperature is 210 DEG C, and the 6th section heating temperature is 200 DEG C；195 DEG C of extruder head temperature
(6) wire drawing composition obtained by step (5) is added to bracing wire in single screw extrusion machine, control control first segment sink
Temperature is 50 DEG C, and second segment sink temperature is 20 DEG C to get the printing wire rod that diameter must be 1.75 millimeters.
The performance for measuring 3 gained printing wire rod of embodiment is shown in Table 1.
Embodiment 4
(1) it takes suitable small white sand peanut shell, Shandong peanut shell to be put into grinder and grind, obtains the powder of 90 mesh after screening
End；
(2) 7 hours dry at 58 DEG C by peanut shell powder obtained by step (1) in drying case；
(3) 0.1 part of 1 part of 8 parts of calcium carbonate, ethyl alcohol, the water of parts by weight and 0.5 part of chromium complex coupling agent is taken to be mixed equal
It is even, obtain calcium carbonate mixture；
(4) polylactic acid 75g, dioctyl phthalate 1g, dibutyl phthalate 2g, dibutyl phthalate are taken
Calcium carbonate mixture 8.6g is added in mixing machine obtained by extra large peanut shell powder 30g, step (3) obtained by 3g, step (2), is being stirred
It is stirred 5min under speed 2000r/min, obtains raw mixture；
(5) raw mixture obtained by step (4) is added to melting extrusion in double screw extruder, be granulated, drawn
Silk composition；The screw speed of extruder is 20~30r/min, and the first section heating temperature of extruder is 50 DEG C, the secondth area
Section heating temperature is 100 DEG C, and third section heating temperature is 140 DEG C, and the 4th section heating temperature is 190 DEG C, and the 5th section adds
Hot temperature is 210 DEG C, and the 6th section heating temperature is 210 DEG C；205 DEG C of extruder head temperature
(6) wire drawing composition obtained by step (5) is added to bracing wire in single screw extrusion machine, control control first segment sink
Temperature is 50 DEG C, and second segment sink temperature is 20 DEG C to get the printing wire rod that diameter must be 1.75 millimeters.
The performance for measuring 4 gained printing wire rod of embodiment is shown in Table 1.
Comparative example 1
Using polylactic acid as primary raw material, it is mixed with calcium carbonate, coupling agent, plasticizer and antioxidant by setting ratio,
3D printing wire rod is prepared by the extruding pelletization and drawing process of embodiment 4.
(1) polylactic acid 75g, dioctyl phthalate 1g, dibutyl phthalate 2g, 2,6- di-t-butyl -4- are taken
0.5 part of methylphenol 3g, 100 mesh calcium carbonate 8g and chromium complex coupling agent are added in mixing machine, low whipping speed 2000r/min
Under be stirred 5min, obtain raw mixture；
(2) raw mixture obtained by step (1) is added to melting extrusion in double screw extruder, be granulated, drawn
Silk composition；The screw speed of extruder is 20~30r/min, and the first section heating temperature of extruder is 50 DEG C, the secondth area
Section heating temperature is 100 DEG C, and third section heating temperature is 140 DEG C, and the 4th section heating temperature is 190 DEG C, and the 5th section adds
Hot temperature is 210 DEG C, and the 6th section heating temperature is 210 DEG C；205 DEG C of extruder head temperature
(3) wire drawing composition obtained by step (2) is added to bracing wire in single screw extrusion machine, control control first segment sink
Temperature is 50 DEG C, and second segment sink temperature is 20 DEG C to get the printing wire rod that diameter must be 1.75 millimeters.
It measures 1 gained printing wire rod performance of comparative example and is shown in Table 1.
The performance table of 3D printing wire rod obtained by 1 the embodiment of the present invention of table and comparative example
From table 1 it follows that printing wire rod produced by the present invention, tensile strength exist in 40Mpa or more, bending strength
70Mpa or so, impact strength are more than 40J/m2, are above the polylactic acid printing wire rod obtained by comparative example 1.And compared to comparison
The manufacturing cost of example 1, embodiment 4 can reduce by 30% or so.
Claims (9)
1. a kind of biodegradable 3D printing wire rod based on peanut shell, which is characterized in that be grouped as by the group of following parts by weight：
70~80 parts of polylactic acid, 20~50 parts of peanut shell, 5~10 parts of calcium carbonate, 0.2~0.8 part of coupling agent, 2~3 parts of plasticizer and anti-
The mesh number of 2~3 parts of oxygen agent, the calcium carbonate is 80~120 mesh.
2. 3D printing wire rod as described in claim 1, which is characterized in that the polylactic acid is Natureworks companies of the U.S.
The polylactic acid of the trade mark 4032D of production.
3. 3D printing wire rod according to claim 1, which is characterized in that the coupling agent is silane coupling agent, titanate esters
At least one of coupling agent, aluminate coupling agent, chromium complex coupling agent.
4. 3D printing wire rod as described in claim 1, which is characterized in that the plasticizer is dioctyl phthalate, neighbour
At least one of phthalic acid dinonyl, dibutyl phthalate.
5. 3D printing wire rod as described in claim 1, which is characterized in that the antioxidant is tea polyphenols, phytic acid, 2,6-, bis- uncles
At least one of butyl -4- methylphenols, butylated hydroxy anisole.
6. the preparation method of 3D printing wire rod as claimed in any one of claims 1 to 5, wherein, which is characterized in that including following step
Suddenly：
(1) peanut shell is put into grinder and is ground, obtain the peanut shell powder of 80~120 mesh after screening；
(2) peanut shell powder obtained by step (1) is dry in drying case；
(3) 0.03~0.2 part of 0.3~1.5 part of 5~10 parts of calcium carbonate, ethyl alcohol, the water and 0.2~0.8 part of coupling agent of parts by weight are taken
It is mixed evenly, obtains calcium carbonate mixture；
(4) polylactic acid, plasticizer, antioxidant, step (2) gained peanut shell powder and step (3) gained carbon are taken by setting ratio
Sour calcium compound is added in mixing machine and uniformly mixes, obtains raw mixture；
(5) raw mixture obtained by step (4) is added to melting extrusion in double screw extruder, be granulated, obtain wire drawing group
Close object；
(6) wire drawing composition obtained by step (5) is added to bracing wire in single screw extrusion machine, control sink temperature is 10 DEG C~60
To get the 3D printing wire rod of uniform diameter between DEG C.
7. the preparation method of 3D printing wire rod as claimed in claim 6, which is characterized in that step (2) described drying temperature is
55~65 DEG C, drying time be 6~10h.
8. the preparation method of 3D printing wire rod as claimed in claim 6, which is characterized in that step (5) described twin-screw extrusion
First section heating temperature of machine is 30~80 DEG C, and the second section heating temperature is 80~120 DEG C, and third section heating temperature is
120~165 DEG C, the 4th section heating temperature is 165~200 DEG C, and the 5th section heating temperature is 200~220 DEG C, the 6th section
Heating temperature is 200~210 DEG C, 195~205 DEG C of extruder head temperature.
9. the preparation method of 3D printing wire rod as claimed in claim 6, which is characterized in that step (6) described sink is equipped with two
Section, first segment sink temperature are 40~60 DEG C, and the second sink temperature is 10~30 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810400978.5A CN108587091B (en) | 2018-04-28 | 2018-04-28 | Biodegradable 3D printing wire based on peanut shells and preparation method thereof |
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| CN201810400978.5A CN108587091B (en) | 2018-04-28 | 2018-04-28 | Biodegradable 3D printing wire based on peanut shells and preparation method thereof |
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| CN108587091B CN108587091B (en) | 2020-09-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731982A (en) * | 2012-07-23 | 2012-10-17 | 惠州健昇吸塑制造有限公司 | Biodegradable material containing fiber base and polylactic acid and preparation method thereof |
| CN102746628A (en) * | 2012-07-23 | 2012-10-24 | 惠州健昇吸塑制造有限公司 | Biodegradable temperature resistant material containing fiber base and polylactic acid and preparation method thereof |
| CN104312119A (en) * | 2014-11-06 | 2015-01-28 | 芜湖瀚博电子科技有限公司 | Straw 3D printing consumable and preparation method thereof |
| CN105348761A (en) * | 2015-12-11 | 2016-02-24 | 河南工程学院 | Polylactic acid material for fused deposition molding and preparation method of polylactic acid material |
| CN106009572A (en) * | 2016-07-18 | 2016-10-12 | 宁夏共享模具有限公司 | PLA modified material applied to 3D printing of large casting molds, and method of PLA modified material |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102731982A (en) * | 2012-07-23 | 2012-10-17 | 惠州健昇吸塑制造有限公司 | Biodegradable material containing fiber base and polylactic acid and preparation method thereof |
| CN102746628A (en) * | 2012-07-23 | 2012-10-24 | 惠州健昇吸塑制造有限公司 | Biodegradable temperature resistant material containing fiber base and polylactic acid and preparation method thereof |
| CN104312119A (en) * | 2014-11-06 | 2015-01-28 | 芜湖瀚博电子科技有限公司 | Straw 3D printing consumable and preparation method thereof |
| CN105348761A (en) * | 2015-12-11 | 2016-02-24 | 河南工程学院 | Polylactic acid material for fused deposition molding and preparation method of polylactic acid material |
| CN106009572A (en) * | 2016-07-18 | 2016-10-12 | 宁夏共享模具有限公司 | PLA modified material applied to 3D printing of large casting molds, and method of PLA modified material |
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Address after: Qixia District of Nanjing City, Jiangsu province 210016 Xianlin University City Yang Shan Road No. 1 Applicant after: Nanjing Vocational University of Industry Technology Address before: Qixia District of Nanjing City, Jiangsu province 210016 Xianlin University City Yang Shan Road No. 1 Applicant before: NANJING INSTITUTE OF INDUSTRY TECHNOLOGY |
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Inventor after: Yu Wangwang Inventor after: Niu Mingxiang Inventor after: Zhang Zhe Inventor after: Han Mengcheng Inventor after: Zhao Jie Inventor before: Niu Mingxiang Inventor before: Yu Wangwang Inventor before: Zhang Zhe Inventor before: Han Mengcheng Inventor before: Zhao Jie |