CN106280330A - A kind of wood plastic composite for 3D printing and preparation method thereof - Google Patents
A kind of wood plastic composite for 3D printing and preparation method thereof Download PDFInfo
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- CN106280330A CN106280330A CN201610648446.4A CN201610648446A CN106280330A CN 106280330 A CN106280330 A CN 106280330A CN 201610648446 A CN201610648446 A CN 201610648446A CN 106280330 A CN106280330 A CN 106280330A
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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
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Abstract
The invention discloses a kind of wood plastic composite for 3D printing and preparation method thereof, this wood plastic composite is prepared from by the raw material of following weight portion: polylactic acid, 55~65 parts;Powdered rice hulls, 25~35 parts;Paper pulp, 15~25 parts;Ultra-high molecular weight polyethylene, 8~12 parts;Methylpropene sodium sulfonate, 6~8 parts;Disodium glycyrrhizinate, 4~6 parts;Cenosphere, 4~6 parts;Coupling agent, 1~3 part;Lubricant, 1~3 part;Toughener, 1~3 part;Antioxidant, 1~2 part.Wood plastic composite lubricity and mobility that the present invention provides are excellent, contribute to that 3D print procedure is smooth and easy to be carried out, and will not block the nozzle of printing device, improve work efficiency and the conforming product rate of equipment.The preparation method of wood plastic composite of the present invention uses conventional equipment, it is not necessary to harsh conditions, it is easy to promote.
Description
Technical field
The invention belongs to field of compound material, be specifically related to a kind of wood plastic composite printed for 3D and preparation side thereof
Method.
Background technology
There is having so far more than 20 year history in 3D printing technique, and this technology, based on discrete-accumulation principle, is a kind of advanced person
Increase material manufacturing technology.Current existing 3D printing consumables is mainly the materials such as single PLA, ABS, PVA, but above material is all deposited
In the limitation of self, relatively costly, the material of PLA material is easy for deformation, easy occluding device nozzle more than 55 DEG C;
ABS material is more sensitive to temperature and shear rate, and in the course of processing, abnormal smells from the patient is heavy, yielding and weatherability is poor;And PVA water solublity
Material is mainly used in printing support type material, and consumption is few, and can produce toxic gas when PVA decomposes.In a word, the most extensively
The 3D printing consumables of general use has that price is high, energy consumption high, processing conditions requires the shortcomings such as complicated molding harsh, difficult, easy fracture.
It is, thus, sought for a kind of 3D printing consumables, it is the most cheap, green low-carbon environment-friendly, good stability of the dimension, intensity height,
Have in the course of processing not plug-hole, not fracture of wire, without advantages such as buckling deformations, and the goods produced have preferable physical machine
Tool performance and weatherability.
Summary of the invention
An object of the present disclosure is to provide a kind of wood plastic composite printed for 3D;
The present invention the second purpose is to provide the preparation method of above-mentioned composite.
The above-mentioned purpose of the present invention is achieved by techniques below scheme:
A kind of for 3D print wood plastic composite, be prepared from by the raw material of following weight portion: polylactic acid, 55~
65 parts;Powdered rice hulls, 25~35 parts;Paper pulp, 15~25 parts;Ultra-high molecular weight polyethylene, 8~12 parts;Methylpropene sodium sulfonate, 6
~8 parts;Disodium glycyrrhizinate, 4~6 parts;Cenosphere, 4~6 parts;Coupling agent, 1~3 part;Lubricant, 1~3 part;Toughener, 1
~3 parts;Antioxidant, 1~2 part.
Further, described wood plastic composite is prepared from by the raw material of following weight portion: polylactic acid, 60 parts;
Powdered rice hulls, 30 parts;Paper pulp, 20 parts;Ultra-high molecular weight polyethylene, 10 parts;Methylpropene sodium sulfonate, 7 parts;Disodium glycyrrhizinate, 5
Part;Cenosphere, 5 parts;Coupling agent, 2 parts;Lubricant, 2 parts;Toughener, 2 parts;Antioxidant, 1.5 parts.
Further, described polylactic acid be melt index be the polylactic acid of 5.
Further, the viscosity-average molecular weight of described ultra-high molecular weight polyethylene is 300~5,000,000.
Further, the particle diameter of described powdered rice hulls is 200~300 mesh;The particle diameter of described cenosphere is 600~800 mesh;
The particle diameter of described paper pulp is 200~300 mesh.
Further, described coupling agent is titanate esters.
Further, described lubricant is magnesium stearate.
Further, described toughener is chlorinated polyethylene.
Further, described antioxidant is antioxidant 1010.
The preparation method of above-mentioned wood plastic composite, comprises the steps:
Step S1, is dried with 80 DEG C~100 DEG C of temperature in powdered rice hulls is placed in microwave dryer so that it is water content is down to 2
~4%;
Step S2, joins in high-speed mixer by dry powdered rice hulls activate with paper pulp, cenosphere, coupling agent
Process, be sufficiently mixed 5~10 minutes, obtain mixture;
Step S3, by step S2 gained mixture and polylactic acid, ultra-high molecular weight polyethylene, methylpropene sodium sulfonate, sweet
The addition duoble cone-type blender mixing of oxalic acid disodium, lubricant, antioxidant, toughener obtains premix to being uniformly dispersed in 20~30 minutes
Material;
Step S4, adds the premix to carry out in planetary-screw comminutor extruding pelletization, wherein planetary-screw comminutor
From charge door to head, the barrel heat temperature in each district is followed successively by: 160 DEG C of a district~180 DEG C, 180 DEG C~200 DEG C of 2nd district, 3rd district
210 DEG C~230 DEG C, 170 DEG C~190 DEG C of 4th district;
Step S5, joins the particulate material that step S4 prepares and carries out in conical double screw extruder extruding wire drawing, control
A diameter of the 1.5~2.5mm of silk material;Wherein conical double screw extruder barrel heat temperature in each district from charge door to head depends on
Secondary it is: 150 DEG C of a district~170 DEG C, 180 DEG C~200 DEG C of 2nd district, 170 DEG C~190 DEG C of 3rd district, 160 DEG C~180 DEG C of 4th district;
Step S6, described silk material is entered coil winder after being cooled down by tank and is wound into finished product.
Advantages of the present invention:
1, the present invention provides wood plastic composite lubricity and mobility are excellent, contribute to 3D print procedure smooth and easy enter
OK, the nozzle of printing device will not be blocked, improve work efficiency and the conforming product rate of equipment;
2, the preparation method of wood plastic composite of the present invention uses conventional equipment, it is not necessary to harsh conditions, it is easy to promote.
Detailed description of the invention
Further illustrate the essentiality content of the present invention below in conjunction with embodiment, but do not limit the present invention with this and protect model
Enclose.Although the present invention being explained in detail with reference to preferred embodiment, it will be understood by those within the art that, can be right
Technical scheme is modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
Embodiment 1: the preparation of wood plastic composite
Parts by weight of raw materials compares:
Polylactic acid, 60 parts;Powdered rice hulls, 30 parts;Paper pulp, 20 parts;Ultra-high molecular weight polyethylene, 10 parts;Methacrylic sulfonic acid
Sodium, 7 parts;Disodium glycyrrhizinate, 5 parts;Cenosphere, 5 parts;Coupling agent, 2 parts;Lubricant, 2 parts;Toughener, 2 parts;Antioxidant,
1.5 part.Described polylactic acid be melt index be the polylactic acid of 5.The viscosity-average molecular weight of described ultra-high molecular weight polyethylene be 300~
5000000.The particle diameter of described powdered rice hulls is 200~300 mesh;The particle diameter of described cenosphere is 600~800 mesh;Described paper pulp
Particle diameter is 200~300 mesh.Described coupling agent is titanate esters.Described lubricant is magnesium stearate.Described toughener is chlorinated polyethylene
Alkene.Described antioxidant is antioxidant 1010.
Preparation method:
Step S1, is dried with 90 DEG C of temperature in powdered rice hulls is placed in microwave dryer so that it is water content is down to 2~4%;
Step S2, joins in high-speed mixer by dry powdered rice hulls activate with paper pulp, cenosphere, coupling agent
Process, be sufficiently mixed 8 minutes, obtain mixture;
Step S3, by step S2 gained mixture and polylactic acid, ultra-high molecular weight polyethylene, methylpropene sodium sulfonate, sweet
The addition duoble cone-type blender mixing of oxalic acid disodium, lubricant, antioxidant, toughener obtains premix material to being uniformly dispersed in 25 minutes;
Step S4, adds the premix to carry out in planetary-screw comminutor extruding pelletization, wherein planetary-screw comminutor
From charge door to head, the barrel heat temperature in each district is followed successively by: 170 DEG C of a district, 190 DEG C of 2nd district, 220 DEG C of 3rd district, four districts 180
℃;
Step S5, joins the particulate material that step S4 prepares and carries out in conical double screw extruder extruding wire drawing, control
A diameter of 2mm of silk material;Wherein conical double screw extruder barrel heat temperature in each district from charge door to head is followed successively by: one
160 DEG C of district, 190 DEG C of 2nd district, 180 DEG C of 3rd district, 170 DEG C of 4th district;
Step S6, described silk material is entered coil winder after being cooled down by tank and is wound into finished product.
Embodiment 2: the preparation of wood plastic composite
Parts by weight of raw materials compares:
Polylactic acid, 55 parts;Powdered rice hulls, 25 parts;Paper pulp, 15 parts;Ultra-high molecular weight polyethylene, 8 parts;Methacrylic sulfonic acid
Sodium, 6 parts;Disodium glycyrrhizinate, 4 parts;Cenosphere, 4 parts;Coupling agent, 1 part;Lubricant, 1 part;Toughener, 1 part;Antioxidant, 1
Part.Described polylactic acid be melt index be the polylactic acid of 5.The viscosity-average molecular weight of described ultra-high molecular weight polyethylene is 300~500
Ten thousand.The particle diameter of described powdered rice hulls is 200~300 mesh;The particle diameter of described cenosphere is 600~800 mesh;The particle diameter of described paper pulp
It is 200~300 mesh.Described coupling agent is titanate esters.Described lubricant is magnesium stearate.Described toughener is chlorinated polyethylene.
Described antioxidant is antioxidant 1010.
Preparation method:
Step S1, is dried with 90 DEG C of temperature in powdered rice hulls is placed in microwave dryer so that it is water content is down to 2~4%;
Step S2, joins in high-speed mixer by dry powdered rice hulls activate with paper pulp, cenosphere, coupling agent
Process, be sufficiently mixed 8 minutes, obtain mixture;
Step S3, by step S2 gained mixture and polylactic acid, ultra-high molecular weight polyethylene, methylpropene sodium sulfonate, sweet
The addition duoble cone-type blender mixing of oxalic acid disodium, lubricant, antioxidant, toughener obtains premix material to being uniformly dispersed in 25 minutes;
Step S4, adds the premix to carry out in planetary-screw comminutor extruding pelletization, wherein planetary-screw comminutor
From charge door to head, the barrel heat temperature in each district is followed successively by: 170 DEG C of a district, 190 DEG C of 2nd district, 220 DEG C of 3rd district, four districts 180
℃;
Step S5, joins the particulate material that step S4 prepares and carries out in conical double screw extruder extruding wire drawing, control
A diameter of 2mm of silk material;Wherein conical double screw extruder barrel heat temperature in each district from charge door to head is followed successively by: one
160 DEG C of district, 190 DEG C of 2nd district, 180 DEG C of 3rd district, 170 DEG C of 4th district;
Step S6, described silk material is entered coil winder after being cooled down by tank and is wound into finished product.
Embodiment 3: the preparation of wood plastic composite
Parts by weight of raw materials compares:
Polylactic acid, 65 parts;Powdered rice hulls, 35 parts;Paper pulp, 25 parts;Ultra-high molecular weight polyethylene, 12 parts;Methacrylic sulfonic acid
Sodium, 8 parts;Disodium glycyrrhizinate, 6 parts;Cenosphere, 6 parts;Coupling agent, 3 parts;Lubricant, 3 parts;Toughener, 3 parts;Antioxidant, 2
Part.Described polylactic acid be melt index be the polylactic acid of 5.The viscosity-average molecular weight of described ultra-high molecular weight polyethylene is 300~500
Ten thousand.The particle diameter of described powdered rice hulls is 200~300 mesh;The particle diameter of described cenosphere is 600~800 mesh;The particle diameter of described paper pulp
It is 200~300 mesh.Described coupling agent is titanate esters.Described lubricant is magnesium stearate.Described toughener is chlorinated polyethylene.
Described antioxidant is antioxidant 1010.
Preparation method:
Step S1, is dried with 90 DEG C of temperature in powdered rice hulls is placed in microwave dryer so that it is water content is down to 2~4%;
Step S2, joins in high-speed mixer by dry powdered rice hulls activate with paper pulp, cenosphere, coupling agent
Process, be sufficiently mixed 8 minutes, obtain mixture;
Step S3, by step S2 gained mixture and polylactic acid, ultra-high molecular weight polyethylene, methylpropene sodium sulfonate, sweet
The addition duoble cone-type blender mixing of oxalic acid disodium, lubricant, antioxidant, toughener obtains premix material to being uniformly dispersed in 25 minutes;
Step S4, adds the premix to carry out in planetary-screw comminutor extruding pelletization, wherein planetary-screw comminutor
From charge door to head, the barrel heat temperature in each district is followed successively by: 170 DEG C of a district, 190 DEG C of 2nd district, 220 DEG C of 3rd district, four districts 180
℃;
Step S5, joins the particulate material that step S4 prepares and carries out in conical double screw extruder extruding wire drawing, control
A diameter of 2mm of silk material;Wherein conical double screw extruder barrel heat temperature in each district from charge door to head is followed successively by: one
160 DEG C of district, 190 DEG C of 2nd district, 180 DEG C of 3rd district, 170 DEG C of 4th district;
Step S6, described silk material is entered coil winder after being cooled down by tank and is wound into finished product.
Embodiment 4: comparative example
Parts by weight of raw materials compares:
Polylactic acid, 60 parts;Powdered rice hulls, 30 parts;Paper pulp, 20 parts;Ultra-high molecular weight polyethylene, 10 parts;Disodium glycyrrhizinate, 5
Part;Cenosphere, 5 parts;Coupling agent, 2 parts;Lubricant, 2 parts;Toughener, 2 parts;Antioxidant, 1.5 parts.Described polylactic acid is molten
Melt the polylactic acid that index is 5.The viscosity-average molecular weight of described ultra-high molecular weight polyethylene is 300~5,000,000.The grain of described powdered rice hulls
Footpath is 200~300 mesh;The particle diameter of described cenosphere is 600~800 mesh;The particle diameter of described paper pulp is 200~300 mesh.Described
Coupling agent is titanate esters.Described lubricant is magnesium stearate.Described toughener is chlorinated polyethylene.Described antioxidant is antioxidant
1010。
Preparation method:
Step S1, is dried with 90 DEG C of temperature in powdered rice hulls is placed in microwave dryer so that it is water content is down to 2~4%;
Step S2, joins in high-speed mixer by dry powdered rice hulls activate with paper pulp, cenosphere, coupling agent
Process, be sufficiently mixed 8 minutes, obtain mixture;
Step S3, by step S2 gained mixture and polylactic acid, ultra-high molecular weight polyethylene, disodium glycyrrhizinate, lubricant,
The addition duoble cone-type blender mixing of antioxidant, toughener obtains premix material to being uniformly dispersed in 25 minutes;
Step S4, adds the premix to carry out in planetary-screw comminutor extruding pelletization, wherein planetary-screw comminutor
From charge door to head, the barrel heat temperature in each district is followed successively by: 170 DEG C of a district, 190 DEG C of 2nd district, 220 DEG C of 3rd district, four districts 180
℃;
Step S5, joins the particulate material that step S4 prepares and carries out in conical double screw extruder extruding wire drawing, control
A diameter of 2mm of silk material;Wherein conical double screw extruder barrel heat temperature in each district from charge door to head is followed successively by: one
160 DEG C of district, 190 DEG C of 2nd district, 180 DEG C of 3rd district, 170 DEG C of 4th district;
Step S6, described silk material is entered coil winder after being cooled down by tank and is wound into finished product.
Embodiment 5: comparative example
Parts by weight of raw materials compares:
Polylactic acid, 60 parts;Powdered rice hulls, 30 parts;Paper pulp, 20 parts;Ultra-high molecular weight polyethylene, 10 parts;Methacrylic sulfonic acid
Sodium, 7 parts;Cenosphere, 5 parts;Coupling agent, 2 parts;Lubricant, 2 parts;Toughener, 2 parts;Antioxidant, 1.5 parts.Described polylactic acid
It is the polylactic acid of 5 for melt index.The viscosity-average molecular weight of described ultra-high molecular weight polyethylene is 300~5,000,000.Described powdered rice hulls
Particle diameter be 200~300 mesh;The particle diameter of described cenosphere is 600~800 mesh;The particle diameter of described paper pulp is 200~300 mesh.
Described coupling agent is titanate esters.Described lubricant is magnesium stearate.Described toughener is chlorinated polyethylene.Described antioxidant is anti-
Oxygen agent 1010.
Preparation method:
Step S1, is dried with 90 DEG C of temperature in powdered rice hulls is placed in microwave dryer so that it is water content is down to 2~4%;
Step S2, joins in high-speed mixer by dry powdered rice hulls activate with paper pulp, cenosphere, coupling agent
Process, be sufficiently mixed 8 minutes, obtain mixture;
Step S3, by step S2 gained mixture and polylactic acid, ultra-high molecular weight polyethylene, methylpropene sodium sulfonate, profit
The addition duoble cone-type blender mixing of lubrication prescription, antioxidant, toughener obtains premix material to being uniformly dispersed in 25 minutes;
Step S4, adds the premix to carry out in planetary-screw comminutor extruding pelletization, wherein planetary-screw comminutor
From charge door to head, the barrel heat temperature in each district is followed successively by: 170 DEG C of a district, 190 DEG C of 2nd district, 220 DEG C of 3rd district, four districts 180
℃;
Step S5, joins the particulate material that step S4 prepares and carries out in conical double screw extruder extruding wire drawing, control
A diameter of 2mm of silk material;Wherein conical double screw extruder barrel heat temperature in each district from charge door to head is followed successively by: one
160 DEG C of district, 190 DEG C of 2nd district, 180 DEG C of 3rd district, 170 DEG C of 4th district;
Step S6, described silk material is entered coil winder after being cooled down by tank and is wound into finished product.
Embodiment 6: effect example
Respectively wood plastic composite prepared by embodiment 1~5 is used for 3D to print, working 12 hours, adds up 3D printer
The blocking number of times of nozzle, gives a mark (full marks 10 points) to the fluency of print procedure, and result see table:
Blocking number of times | Print fluency | |
Embodiment 1 | 0 | 10 |
Embodiment 2 | 0 | 10 |
Embodiment 3 | 0 | 10 |
Embodiment 4 | 7 | 6.5 |
Embodiment 5 | 6 | 7.2 |
The above results shows, wood plastic composite lubricity and mobility that the present invention provides are excellent, contribute to 3D and print
Process is smooth and easy to be carried out, and will not block the nozzle of printing device, improves work efficiency and the conforming product rate of equipment.Present invention wood
The preparation method of plastic composite materials uses conventional equipment, it is not necessary to harsh conditions, it is easy to promote.
The effect of above-described embodiment indicates that the essentiality content of the present invention, but does not limit the protection of the present invention with this
Scope.It will be understood by those within the art that, technical scheme can be modified or equivalent,
Essence and protection domain without deviating from technical solution of the present invention.
Claims (10)
1. the wood plastic composite printed for 3D, it is characterised in that be prepared from by the raw material of following weight portion: poly-
Lactic acid, 55~65 parts;Powdered rice hulls, 25~35 parts;Paper pulp, 15~25 parts;Ultra-high molecular weight polyethylene, 8~12 parts;Metering system
Sodium sulfonate, 6~8 parts;Disodium glycyrrhizinate, 4~6 parts;Cenosphere, 4~6 parts;Coupling agent, 1~3 part;Lubricant, 1~3 part;
Toughener, 1~3 part;Antioxidant, 1~2 part.
The wood plastic composite printed for 3D the most according to claim 1, it is characterised in that by following weight portion
Raw material is prepared from: polylactic acid, 60 parts;Powdered rice hulls, 30 parts;Paper pulp, 20 parts;Ultra-high molecular weight polyethylene, 10 parts;Metering system
Sodium sulfonate, 7 parts;Disodium glycyrrhizinate, 5 parts;Cenosphere, 5 parts;Coupling agent, 2 parts;Lubricant, 2 parts;Toughener, 2 parts;Antioxygen
Agent, 1.5 parts.
The wood plastic composite printed for 3D the most according to claim 1 and 2, it is characterised in that: described polylactic acid is
Melt index is the polylactic acid of 5.
The wood plastic composite printed for 3D the most according to claim 1 and 2, it is characterised in that: described supra polymer
The viscosity-average molecular weight of weight northylen is 300~5,000,000.
The wood plastic composite printed for 3D the most according to claim 1 and 2, it is characterised in that: described powdered rice hulls
Particle diameter is 200~300 mesh;The particle diameter of described cenosphere is 600~800 mesh;The particle diameter of described paper pulp is 200~300 mesh.
Wood plastic composite the most according to claim 1 and 2, it is characterised in that: described coupling agent is titanate esters.
Wood plastic composite the most according to claim 1 and 2, it is characterised in that: described lubricant is magnesium stearate.
Wood plastic composite the most according to claim 1 and 2, it is characterised in that: described toughener is chlorinated polyethylene.
Wood plastic composite the most according to claim 1 and 2, it is characterised in that: described antioxidant is antioxidant 1010.
10. the preparation method of wood plastic composite described in claim 1 or 2, it is characterised in that comprise the steps:
Step S1, is dried with 80 DEG C~100 DEG C of temperature in powdered rice hulls is placed in microwave dryer so that it is water content be down to 2~
4%;
Step S2, joins dry powdered rice hulls and paper pulp, cenosphere, coupling agent in high-speed mixer and carries out at activation
Reason, is sufficiently mixed 5~10 minutes, obtains mixture;
Step S3, by step S2 gained mixture and polylactic acid, ultra-high molecular weight polyethylene, methylpropene sodium sulfonate, glycyrrhizic acid
The addition duoble cone-type blender mixing of disodium, lubricant, antioxidant, toughener obtains premix material to being uniformly dispersed in 20~30 minutes;
Step S4, adds the premix to carry out in planetary-screw comminutor extruding pelletization, and wherein planetary-screw comminutor is from adding
Material mouth is followed successively by the barrel heat temperature in each district of head: 160 DEG C of a district~180 DEG C, 180 DEG C~200 DEG C of 2nd district, three districts 210
DEG C~230 DEG C, 170 DEG C~190 DEG C of 4th district;
Step S5, joins the particulate material that step S4 prepares and carries out in conical double screw extruder extruding wire drawing, control silk material
A diameter of 1.5~2.5mm;Wherein the barrel heat temperature in each district is successively from charge door to head for conical double screw extruder
For: 150 DEG C of a district~170 DEG C, 180 DEG C~200 DEG C of 2nd district, 170 DEG C~190 DEG C of 3rd district, 160 DEG C~180 DEG C of 4th district;
Step S6, described silk material is entered coil winder after being cooled down by tank and is wound into finished product.
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CN108582760A (en) * | 2018-05-17 | 2018-09-28 | 东莞职业技术学院 | A kind of paper substrate 3D printing equipment based on text wound product |
CN115491007A (en) * | 2022-10-14 | 2022-12-20 | 东莞职业技术学院 | Rice hull powder reinforced polylactic acid 3D printing wire and preparation method thereof |
CN115491007B (en) * | 2022-10-14 | 2023-09-01 | 东莞职业技术学院 | Rice hull powder reinforced polylactic acid 3D printing wire rod and preparation method thereof |
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