CN110396287B - Low-cost black FDM printing wire prepared by utilizing recycled cigarette film master batch and preparation method and application thereof - Google Patents

Low-cost black FDM printing wire prepared by utilizing recycled cigarette film master batch and preparation method and application thereof Download PDF

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CN110396287B
CN110396287B CN201910676867.1A CN201910676867A CN110396287B CN 110396287 B CN110396287 B CN 110396287B CN 201910676867 A CN201910676867 A CN 201910676867A CN 110396287 B CN110396287 B CN 110396287B
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master batch
pla
double
screw extruder
black
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CN110396287A (en
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吴琼
王宝玲
李劲东
李维莉
鞠海东
刘空
崔焱
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Kunming University
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Kunming University
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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
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • 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
    • 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
    • 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
    • C08L2207/066—LDPE (radical process)
    • 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
    • C08L2207/20—Recycled plastic

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a low-cost black FDM printing wire rod prepared by using recycled cigarette film master batches, and a preparation method and application thereof, wherein the black FDM printing wire rod is prepared by raw materials of 5-40 parts of cigarette film recycled master batches, 60-95 parts of polylactic acid, 0.2-3 parts of compatilizer, 0.5-1 part of flexibilizer, 0.5-1.5 parts of auxiliary agent and 0.5-1 part of white oil in parts by weight. The preparation method comprises the steps of weighing the raw materials according to the formula ratio, adding the raw materials into a high-speed mixer, and stirring to obtain a material a; extruding the mixture by a double-screw extruder, cutting the mixture to obtain a material b, and extruding the material b through a die orifice in the double-screw extruder to obtain a target object. The invention adopts the blending of low-density Polyethylene (PE) and polylactic acid (PLA) of the tobacco film recycling master batch in Yunnan to prepare the high polymer wire rod suitable for black 3D printing, can find a cheap substitute for the black master batch for coloring the 3D printing PLA wire rod, has good and uniform coloring effect and no color cast, widens the application range of the recycling tobacco film master batch, realizes the green recycling of PE high polymer materials, and simultaneously provides a novel 3D printing wire rod.

Description

Low-cost black FDM printing wire prepared by utilizing recycled cigarette film master batch and preparation method and application thereof
Technical Field
The invention belongs to the technical field of materials, and particularly relates to a low-cost black FDM printing wire prepared by utilizing recycled cigarette film master batches, and a preparation method and application thereof.
Background
The tobacco leaf planting area in Yunnan province is the first place in China, and the tobacco industry is an important economic pillar industry in Yunnan province and has important influence on economic growth. In order to prevent weeds and increase the ground temperature, tobacco growers need a large amount of mulching films during tobacco cultivation, the average use period of the tobacco films is 1 to 3 years, and therefore a large amount of waste tobacco films are generated in Yunnan province every year. At present, a plurality of waste cigarette film recovery enterprises in Yunnan can generate cigarette film recovery materials of more than 3 ten thousand tons every year, and the cigarette films have the characteristics of convenience in centralized recovery, uniform physical and chemical properties and the like compared with common life recovery plastics, but because Yunnan is in a low latitude plateau area, the cigarette films are seriously carbonized in the use process of high ultraviolet irradiation intensity, and in addition, the waste cigarette films can be further carbonized in the processes of recovery, granulation and the like, so that the secondary recovery and utilization are influenced. How to effectively utilize the waste cigarette film and improve the economic value of the waste cigarette film become important challenges of the industry.
Polylactic acid (PLA) is an environmentally friendly consumable, and PLA is derived from plant starch and non-fossil fuels. Can be biodegraded automatically under certain composting conditions. Compared with other common 3D printing consumables, the printing consumable has the advantages of no shrinkage, difficulty in cracking, warping and the like, so that the material is more suitable for printing of large models, and the printing of PLA consumables in the field of 3D printing is a trend at present. However, the PLA type 3D printing material is expensive, the printing cost is high, and the popularization is difficult. In addition, the PLA master batch is white, and additives such as different master batches, dispersing agents, compatilizers and the like need to be added according to different market demands for coloring in the using process, so that not only is an additional processing link required to be added, but also the generation time and cost are greatly increased. Whether the production process of PLA wire can be simplified, the production time can be shortened, and the cost can be reduced is a key issue for determining whether the industry can be further developed.
Disclosure of Invention
The first purpose of the invention is to provide a low-cost black FDM printing wire prepared by using recycled cigarette film master batches; the second purpose is to provide the preparation method of the low-cost black FDM printing wire rod prepared by utilizing the recycled cigarette film master batches; the third purpose provides the application of the low-cost black FDM printing wire prepared by utilizing the recycled cigarette film master batch.
The first purpose of the black FDM printing wire rod is achieved by the fact that the black FDM printing wire rod is prepared from raw materials of, by weight, 5-40 parts of cigarette film recycling master batch, 60-95 parts of polylactic acid, 0.2-3 parts of compatilizer, 0.5-1 part of flexibilizer, 0.5-1.5 parts of auxiliary agent and 0.05-1 part of white oil.
The second object of the present invention is achieved by comprising the steps of:
A. respectively drying the raw material recovered cigarette film master batch and polylactic acid (PLA) in a vacuum drying oven for 24 hours for later use;
B. weighing the dried recycled cigarette film master batch, polylactic acid, compatilizer, additive and white oil according to the formula ratio, adding the mixture into a high-speed mixer, heating to 90-110 ℃, and stirring at the rotating speed of 4000-6000 rpm for 30-50 min to obtain a mixed material;
C. putting the material obtained in the step B into a double-screw extruder, wherein the temperature is 150 ℃ and 210 ℃, and the rotating speed is 70 rpm; the raw material extruded from the twin-screw is cooled and sent into a granulator to be cut into particles, as shown in figure 1;
D. c, placing the particles obtained in the step C into a feed inlet of a screw extruder, wherein the temperature of the screw extruder is 150 ℃ and 210 ℃, and the rotating speed is 60 rpm; the low-cost black FDM printing wire extruded by the die orifice is cooled by a first cooling water tank and a second cooling water tank respectively to obtain an extruded wire; the water-cooled extruded wire was wound into a bundle using a winder connected to a tractor at a frequency of 10Hz, resulting in a low-cost black FDM printed wire, see fig. 2.
The preparation method of the invention specifically comprises the following operations:
A. respectively placing the recovered tobacco film master batch and PLA into a vacuum drying oven for drying;
B. weighing the dried recycled cigarette film master batch, PLA, compatilizer, additive and white oil according to the weight percentage formula;
C. placing the weighed components in a high-speed kneader, keeping the rotation speed of 1000-;
D. adding the uniformly mixed recovered cigarette film master batch, PLA, compatilizer, auxiliary agent and white oil into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-210 ℃, and the rotating speed of the double-screw extruder is 10-200 rpm; cooling the raw materials extruded from the double screw, feeding the raw materials into a granulator, cutting the raw materials into particles, and drying the particles for later use;
E. d, placing the particles obtained in the step D into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-; cooling the recovered tobacco film master batches/PLA wires extruded from the die opening through a first cooling water tank and a second cooling water tank respectively to obtain extruded wires;
F. and (3) rolling the water-cooled extruded wires into bundles by using a wire winder to obtain recycled cigarette film master batches/PLA wires, wherein the frequency of a tractor connected with the wire winder is 5-40 Hz.
The recovered tobacco film master batch is a PE master batch formed by washing and recovering a recovered tobacco film by planting the recovered tobacco film such as a tobacco film recovery master batch in Yunnan region and Yuxi Qu, and is preferably a recovered tobacco film master batch produced by Yunnan Kedi plastic company Limited.
The auxiliary agent is at least one selected from Japanese gold DA-310ST auxiliary agent and Bigno chemical Co., Ltd, P990 auxiliary agent.
The extruder is one of a single-screw extruder, a double-screw extruder and a three-screw extruder.
The water temperature of the first cooling water tank is 40-90 ℃; the second cooling water tank is ice-water mixture with the temperature of 0 ℃.
The recovered cigarette film master batch/PLA wire rod is applied to the field of 3D printing.
The third purpose of the invention is realized by the application of the low-cost black FDM printing wire prepared by utilizing the recycled cigarette film master batch in the preparation of 3D printing products.
According to the invention, the black polymer wire suitable for 3D printing is prepared by blending the PE cigarette film recovery master batches and polylactic acid (PLA) in Yunnan, the production cost of the black PLA wire can be greatly reduced, the production process and flow are simplified, and meanwhile, a novel 3D printing wire is provided.
The invention has the beneficial effects that: the invention adopts low-density polyethylene (called recycled cigarette film master batch for short) which is prepared by washing, drying and granulating waste cigarette films in Yunnan area and polylactic acid (PLA) to blend and prepare the high polymer wire rod suitable for 3D printing, can find a cheap substitute for the coloring black master batch of the PLA wire rod for 3D printing, has good coloring effect, is uniform and does not deviate color, widens the application range of the recycled cigarette film master batch, realizes the green recycling of PE high polymer materials, and simultaneously provides a novel 3D printing wire rod.
Drawings
FIG. 1 is a schematic illustration of photographs of black masterbatch colored and of PLA masterbatch colored recycled cigarette film masterbatch;
fig. 2 is a schematic diagram comparing a commercial carbon black masterbatch colored PLA wire with a 10% recycled smoke film masterbatch colored PLA wire, wherein: (a) is a cross section view of a commercial carbon black master batch coloring PLA wire, (b) is a cross section view of a 10% recycled cigarette film master batch coloring PLA wire interface microscope picture;
FIG. 3 is a schematic drawing of a photomicrograph showing the coloration of 5% (a), 10% (b) recycled tobacco film concentrates;
FIG. 4 is a comparative photograph of commercially available carbon black masterbatch colored PLA strands (left) and 5% (center), 10% (right) recycled tobacco film masterbatch colored PLA strands;
figure 5 is a comparison photograph of a print model of commercially available carbon black masterbatch colored PLA strands (left) and 5% (center), 10% (right) recycled tobacco film masterbatch colored PLA strands.
Detailed Description
The invention will now be further described with reference to the following examples and the accompanying drawings, but the invention is not to be construed as being limited thereto in any way
Any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.
The black FDM printing wire is prepared from the raw materials of, by weight, 5-40 parts of recycled cigarette film master batch, 60-95 parts of polylactic acid, 0.2-3 parts of compatilizer, 0.5-1 part of flexibilizer, 0.5-1.5 parts of auxiliary agent and 0.05-1 part of white oil.
The polylactic acid is one or more of levorotatory polylactic acid (PLLA), dextrorotatory polylactic acid (PDLA) and racemic polylactic acid (PDLLA).
The polylactic acid is levorotatory polylactic acid (PLLA).
The compatilizer is polyethylene grafted maleic anhydride (PE-g-MAH), polyethylene grafted glycidyl methacrylate (PE-g-GMA), ethylene-octene copolymer grafted maleic anhydride (POE-g-MAH) or ethylene-octene copolymer grafted glycidyl methacrylate (POE-g-GMA).
The compatilizer is a terpolymer prepared by copolymerizing styrene, acrylonitrile and glycidyl methacrylate.
The toughening agent is octene and polyolefin high polymer POE.
The assistant is Japan Dajin DA-310ST assistant.
The invention relates to a preparation method of a low-cost black FDM printing wire rod prepared by utilizing recycled cigarette film master batches, which comprises the following steps:
A. respectively drying the raw material recovered cigarette film master batch and polylactic acid (PLA) in a vacuum drying oven for 24 hours for later use;
B. weighing the dried recycled cigarette film master batch, polylactic acid, compatilizer, additive and white oil according to the formula ratio, adding the mixture into a high-speed mixer, heating to 90-110 ℃, and stirring at the rotating speed of 4000-6000 rpm for 30-50 min to obtain a material a;
C. extruding the material a through a double-screw extruder, cooling to room temperature, and feeding into a granulator for cutting to obtain a material b;
D. and extruding the material b through a die orifice in a double-screw extruder to obtain a target object.
And C, controlling the temperature of the double-screw extruder to be 150-210 nb ℃ and the rotating speed to be 50-70 rpm.
The application of the low-cost black FDM printing wire prepared by utilizing the recycled cigarette film master batches is the application of the low-cost black FDM printing wire prepared by utilizing the recycled cigarette film master batches in the preparation of 3D printing products.
The invention is further illustrated by the following specific examples:
example 1
(1) The formula comprises the following components in percentage by weight:
recycled cigarette film master batch 5
PLA 95
PE-g-MAH 2
DA-310ST 0.5
White oil 0.5
(2) The preparation method comprises the following steps:
A. respectively placing the recovered tobacco film master batch and PLA into a vacuum drying oven for drying;
B. weighing the dried recovered tobacco film master batch, PLA, PE-g-MAH, P990 and white oil according to the weight percentage formula;
C. placing the weighed components in a high-speed kneader, keeping the rotating speed at 2000rpm, and stirring at high speed for 20 min;
D. adding the uniformly mixed recovered cigarette film master batch, PLA, PE-g-MAH, P990 and white oil into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-; cooling the raw material extruded from the screw, feeding the raw material into a granulator, cutting the raw material into particles, and drying the particles for later use as shown in figure 1;
E. d, placing the particles obtained in the step D into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-; cooling the recovered tobacco film master batches/PLA wires extruded from the die opening through a first cooling water tank and a second cooling water tank respectively to obtain extruded wires;
F. using a winding machine to roll the water-cooled extruded wires into bundles to obtain recycled cigarette film master batches/PLA wires, wherein the product is shown in figure 1, the frequency of a tractor connected with the winding machine is 10Hz, and black low-cost FDM printing wires are obtained, as shown in figure 2; the black tinting strength and dispersibility can be directly observed by a microscope, and the results are shown in figures 3 and 4, and it can be seen that when the proportion of the recycled master batch is more than 5 parts, the black wire has no problems of color cast, grain agglomeration and the like, and the recycled cigarette film master batch has good tinting property.
G. And D, performing 3D printing test on the 1.75 +/-0.05 mm extruded wire obtained in the step F, wherein the printing temperature is 200 ℃, the printing process is smooth, the product has no warping phenomenon, and the printed product has stable size and attractive appearance as shown in figure 5.
Example 2
(1) The formula comprises the following components in percentage by weight:
recycled cigarette film master batch 10
PLA 90
POE-g-GMA 5
DA-310ST 1
White oil 1
(2) The preparation method comprises the following steps:
A. respectively placing the recovered tobacco film master batch and PLA into a vacuum drying oven for drying;
B. weighing the dried recovered tobacco film master batch, PLA, POE-g-GMA, DA-310ST and white oil according to the weight percentage formula;
C. placing the weighed components in a high-speed kneader, keeping the rotation speed of 1000-;
D. adding the uniformly mixed recovered cigarette film master batch, PLA, POE-g-GMA, DA-310ST and white oil into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-210 ℃ and the rotating speed of the double-screw extruder is 150 rpm; cooling the raw material extruded from the screw, feeding the raw material into a granulator, cutting the raw material into particles, and drying the particles for later use as shown in figure 1;
E. d, placing the particles obtained in the step D into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150 ℃ and 210 ℃, and the rotating speed is 70 rpm; cooling the recovered tobacco film master batches/PLA wires extruded from the die opening through a first cooling water tank and a second cooling water tank respectively to obtain extruded wires;
F. using a winding machine to roll the water-cooled extruded wires into bundles to obtain recycled cigarette film master batches/PLA wires, wherein the product is shown in figure 1, the frequency of a tractor connected with the winding machine is 10Hz, and black low-cost FDM printing wires are obtained, as shown in figure 2; the black coloring power and dispersibility were observed directly by a microscope, and as a result, as shown in FIGS. 3 and 4, it was found that the black strand had no problems such as color cast and grain agglomeration when the recycled base particles were used in an amount of 5 parts or more.
G. And D, performing 3D printing test on the 1.75 +/-0.05 mm extruded wire obtained in the step F, wherein the printing temperature is 190 ℃, the printing process is smooth, the product has no warping phenomenon, the size is stable, and the appearance is attractive. The printed product is stable in size and beautiful in appearance as shown in fig. 5.
Example 3
(1) The formula comprises the following components in percentage by weight:
recycled cigarette film master batch 20
PLA 80
PE-g-GMA 3
DA-310ST 1.5
POE 0.5
White oil 1
(2) The preparation method comprises the following steps:
A. respectively placing the recovered tobacco film master batch and PLA into a vacuum drying oven for drying;
B. weighing the dried recovered tobacco film master batch, PLA, PE-g-GMA, P990 and white oil according to the weight percentage formula;
C. placing the weighed components in a high-speed kneader, keeping the rotating speed at 3000rpm, and stirring at high speed for 30 min;
D. adding the uniformly mixed recovered cigarette film master batch, PLA, PE-g-GMA, P990 and white oil into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-; cooling the raw material extruded from the screw, feeding the raw material into a granulator, cutting the raw material into particles, and drying the particles for later use;
E. d, placing the particles obtained in the step D into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 140-; cooling the recovered tobacco film master batches/PLA wires extruded from the die opening through a first cooling water tank and a second cooling water tank respectively to obtain extruded wires;
F. and (3) rolling the water-cooled extruded wires into bundles by using a wire winder to obtain the recycled cigarette film master batch/PLA wires.
G. And D, performing 3D printing test on the 1.75 +/-0.05 mm extruded wire obtained in the step F, wherein the printing temperature is 210 ℃, the printing process is smooth, the product has no warping phenomenon, the size is stable, and the appearance is attractive.
Example 4
(1) The formula comprises the following components in percentage by weight:
recycled cigarette film master batch 30
PLA 70
POE-g-MAH 3
DA-310ST 0.8
POE 0.8
White oil 1.2
(2) The preparation method comprises the following steps:
A. respectively placing the recovered tobacco film master batch and PLA into a vacuum drying oven for drying;
B. weighing the dried recovered cigarette film master batch, PLA, POE-g-MAH, P990 and white oil according to the weight percentage formula;
C. placing the weighed components in a high-speed kneader, keeping the rotation speed of 4000rpm, and stirring at high speed for 25 min;
D. adding the uniformly mixed recovered cigarette film master batch, PLA, POE-g-MAH, P990 and white oil into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-; cooling the raw material extruded from the screw, feeding the raw material into a granulator, cutting the raw material into particles, and drying the particles for later use;
E. d, placing the particles obtained in the step D into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-; cooling the recovered tobacco film master batches/PLA wires extruded from the die opening through a first cooling water tank and a second cooling water tank respectively to obtain extruded wires;
F. and (3) rolling the water-cooled extruded wires into bundles by using a wire winder to obtain the recycled cigarette film master batch/PLA wires, wherein the frequency of a tractor connected with the wire winder is 25Hz, and the obtained wires have good black tinting strength and dispersibility and have no problems of color cast, grain agglomeration and the like.
G. And D, performing 3D printing test on the 1.75 +/-0.05 mm extruded wire obtained in the step F, wherein the printing temperature is 210 ℃, the printing process is smooth, the product has no warping phenomenon, the size is stable, and the appearance is attractive.
Example 5
(1) The formula comprises the following components in percentage by weight:
recycled cigarette film master batch 30
PLA 70
POE-g-GMA 1.5
P990 1
POE 1
White oil 0.75
(2) The preparation method comprises the following steps:
A. respectively placing the recovered tobacco film master batch and PLA into a vacuum drying oven for drying;
B. weighing the dried recovered tobacco film master batch, PLA, POE-g-GMA, DA-310ST and white oil according to the weight percentage formula;
C. placing the weighed components in a high-speed kneader, keeping the rotating speed at 5000rpm, and stirring at high speed for 10 min;
D. adding the uniformly mixed recovered cigarette film master batch, PLA, POE-g-GMA, DA-310ST and white oil into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-210 ℃ and the rotating speed of the double-screw extruder is 95 rpm; cooling the raw material extruded from the screw, feeding the raw material into a granulator, cutting the raw material into particles, and drying the particles for later use;
E. putting the particles obtained in the step D into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-,
the rotating speed is 50 rpm; cooling the recovered tobacco film master batches/PLA wires extruded from the die opening through a first cooling water tank and a second cooling water tank respectively to obtain extruded wires;
F. and (3) rolling the water-cooled extruded wires into bundles by using a wire winder to obtain the recycled cigarette film master batch/PLA wires, wherein the frequency of a tractor connected with the wire winder is 20Hz, and the obtained wires have good black tinting strength and dispersibility and have no problems of color cast, grain agglomeration and the like.
G. And D, performing 3D printing test on the 1.75 +/-0.05 mm extruded wire obtained in the step F, wherein the printing temperature is 210 ℃, the printing process is smooth, the product has no warping phenomenon, the size is stable, and the appearance is attractive.
The above-described embodiments are further detailed descriptions of the present invention, but the scope of the claims of the present invention is not limited to the scope described in the embodiments, and all technical solutions adopting equivalent modifications and the like fall within the scope of the claims of the present invention.

Claims (2)

1. The low-cost black FDM printing wire rod prepared by utilizing recovered cigarette film master batches is characterized by being prepared from raw materials, by weight, 5-40 parts of PE cigarette film recovered master batches in Yunnan, 60-95 parts of polylactic acid, 0.2-3 parts of a compatilizer, 0.5-1 part of a flexibilizer, 0.5-1.5 parts of an auxiliary agent and 0.05-1 part of white oil; the compatilizer is a terpolymer prepared by copolymerizing styrene, acrylonitrile and glycidyl methacrylate; the toughening agent is octene and polyolefin high polymer POE; the auxiliary agent is Japan Dajin DA-310ST auxiliary agent; the preparation method comprises the following steps:
A. respectively placing the PE tobacco film recovery master batches and PLA in the Yunnan area into a vacuum drying oven for drying;
B. weighing dried PE smoke film recovery master batches in Yunnan area, PLA, compatilizer, additive and white oil according to the weight percentage formula;
C. placing the weighed components in a high-speed kneader, keeping the rotation speed of 1000-;
D. adding the uniformly mixed PE cigarette film recovery master batch, PLA, compatilizer, additive and white oil into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-210 ℃, and the rotating speed of the double-screw extruder is 10-200 rpm; cooling the raw materials extruded from the double screw, feeding the raw materials into a granulator, cutting the raw materials into particles, and drying the particles for later use;
E. d, placing the particles obtained in the step D into a feed inlet of a double-screw extruder, wherein the temperature of the double-screw extruder is 150-; the low-cost black FDM printing wire extruded by the die orifice is cooled by a first cooling water tank and a second cooling water tank respectively to obtain an extruded wire;
F. and (3) winding the water-cooled extruded wire rod into a bundle by using a winding machine to obtain the low-cost black FDM printed wire rod, wherein the frequency of a tractor connected with the winding machine is 5-40 Hz.
2. The application of the low-cost black FDM printing wire prepared from the recycled cigarette film master batch according to claim 1, wherein the low-cost black FDM printing wire prepared from the recycled cigarette film master batch is applied to preparation of a 3D printing product.
CN201910676867.1A 2019-07-25 2019-07-25 Low-cost black FDM printing wire prepared by utilizing recycled cigarette film master batch and preparation method and application thereof Active CN110396287B (en)

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