CN117467250A - Biodegradable paper material prepared from stone mineral powder and manufacturing method and equipment thereof - Google Patents

Biodegradable paper material prepared from stone mineral powder and manufacturing method and equipment thereof Download PDF

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Publication number
CN117467250A
CN117467250A CN202311442890.7A CN202311442890A CN117467250A CN 117467250 A CN117467250 A CN 117467250A CN 202311442890 A CN202311442890 A CN 202311442890A CN 117467250 A CN117467250 A CN 117467250A
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machine
screw extruder
materials
manufacturing
calcium carbonate
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刘有郞
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Junhe Xiamen Equity Investment Co ltd
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Junhe Xiamen Equity Investment Co ltd
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Priority to CN202311442890.7A priority Critical patent/CN117467250A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/02Making granules by dividing preformed material
    • B29B9/06Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00Conditioning or physical treatment of the material to be shaped
    • B29B13/10Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/12Making granules characterised by structure or composition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/16Auxiliary treatment of granules
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2467/00Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2467/04Polyesters derived from hydroxy carboxylic acids, e.g. lactones
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

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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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

The invention belongs to the field of paper, in particular to a biodegradable paper material prepared from stone mineral powder, a manufacturing method and equipment thereof, wherein the material comprises the following raw materials in percentage by weight: 30-40% of EA material, 5-10% of ED material, 50-70% of EB material, 1-10% of ECM material and 5-30% of EF material, and the preparation method comprises the following steps: s1, taking a poly (adipic acid) -butylene terephthalate (PBAT) raw material as a main carrier, adding the poly (adipic acid) -butylene terephthalate (PBAT) raw material into a bin barrel of a vector weighing and measuring machine in the first working procedure, and running in a parallel double-screw extruder, wherein the manufacturing is only required that a die head device of a host machine can be divided into two materials, namely one material (a granular material) and the second material (a sheet material), and comprises an electric high-speed mixer. The invention protects the environment of the earth, protects the health of human beings and has no pollution in the manufacturing process.

Description

Biodegradable paper material prepared from stone mineral powder and manufacturing method and equipment thereof
Technical Field
The invention relates to the technical field of paper, in particular to a biodegradable paper material prepared from stone mineral powder and a manufacturing method and equipment thereof.
Background
Stone paper is a novel material between paper and plastic, and can replace not only traditional part of functional paper and professional paper, but also traditional most plastic packages. The method has the characteristics of low cost and controllable degradation, can save a great deal of cost for users, and does not produce pollution. From the perspective of replacing the traditional part of paper, the paper can save a great amount of forest resources for society and reduce secondary pollution generated in the papermaking process; from the perspective of replacing the traditional part of plastic packages, the plastic package can save a great amount of strategic resource petroleum (2.3 tons of petroleum can be saved for each 1 ton of use) for the country, and the product can be degraded after use, and cannot cause secondary white pollution. Most of traditional paper materials use plant fibers such as wood and the like as production raw materials. With the increasing shortage of deep forest resources, the raw materials for papermaking are limited to a great extent, and the production cost is increased. In addition, the three wastes generated in the traditional papermaking process using plant fibers as raw materials seriously pollute the environment.
With the rapid development of the scientific technology, the paper making technology is also changed day by day. The technology is a fully-degradable stone paper technology which is processed by using mineral resource calcium carbonate which is most abundant in crust as a main raw material, polymer materials and various inorganic matters as auxiliary raw materials and using a polymer interface chemical principle and a filling modification technology through a special process, is a novel papermaking technology with the characteristics of modern technology, and is also a novel advanced technology in the leading world in China at present. The production of the technology solves the problems that the tree cutting is not needed for papermaking, and the traditional papermaking pollutes the environment. Most importantly, the paper is waterproof, firm, not easy to burn, and is degradable and returns to the nature to be very environment-friendly.
The stone paper on the market at present is mainly paper prepared by mixing a large amount of inorganic filler with plastics such as organic PE, PP and the like and adopting processes such as calendaring or film blowing. However, the stone paper using PE and PP as matrix resin is difficult to recycle because the resin is not degraded, and white pollution is caused by discarding.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a biodegradable paper material prepared from stone mineral powder, and a manufacturing method and equipment thereof.
In order to achieve the above purpose, the present invention can produce two finished technologies, and the following technical schemes:
a biodegradable paper material prepared from stone mineral powder comprises the following raw materials in percentage by weight: 30-40% of EA material, 5-10% of ED material, 60-70% of EB material and 1-10% of ECM material; EF material 5-30%
The EA material is poly (adipic acid) -terephthalic acid-butanediol ester (PBAT); ED material is a biodegradable carrier, EB material is an ore powder filler, ECM material is a degradation auxiliary agent, EF material is a reinforcing filler, the degradation auxiliary agent comprises a hardening agent, a compatibilizer, a nucleating agent and a dispersing agent, the biodegradable carrier comprises PBS and PHA or polylactic acid PLA, and the reinforcing filler comprises talcum powder mica illite powder bamboo powder.
The preparation method of the biodegradable paper material prepared from the stone mineral powder comprises the following steps:
s1, taking a poly (adipic acid) -terephthalic acid-butanediol ester (PBAT) raw material as a main carrier, and then adding the poly (adipic acid) -terephthalic acid-butanediol ester (PBAT) raw material into a first process vector weighing machine bin, and running in a parallel double-screw extruder;
s2, taking calcium carbonate in white ore, grinding the ore into ultrafine powder, namely calcium carbonate CaCO3, and then activating the calcium carbonate or stirring the calcium carbonate in a heated electric high-speed mixer, and discharging the activated calcium carbonate after pre-molding; then adding the pre-plastic activating material into a second process vector weighing machine bin, and running in a parallel double-screw extruder;
s3, adding the degradation auxiliary agent into a bin of a vector weighing and metering machine in a third process, and running in a parallel double-screw extruder;
s4, taking the biodegradable raw material as a subcarrier, adding the subcarrier into a fourth process, and running in a parallel double-screw extruder through a vector weighing and metering machine bin
S5, adding the auxiliary reinforcing filler into a bin barrel of a vector weighing and metering machine in a fifth process, and running in a parallel double-screw extruder.
Meanwhile, the rotating precision metering machine is started to automatically achieve 0.1% precision, five groups of precision electronic metering machines are used for shunting, two groups of materials are fed laterally, and EB materials and EF materials are separated. Granulating and drying by a double-screw extruder to obtain granules, and manufacturing the fully-degradable stone paper material by only dividing a main machine device die head device (B8) into two materials, namely one granule material (A diagram) and the second sheet material (B diagram).
Preferably, the temperature of each zone of the twin-screw extruder is 110-120-130-140-150-160-170-160-150-140-130-130 ℃.
Preferably, in the step S2, calcium carbonate in white ore is taken, the ore is ground into ultrafine powder with high calcium content of 1500-2500 meshes, namely calcium carbonate CaCO3, and then the calcium carbonate is activated or stirred in a heated electric high-speed mixer for 30-60S, and the activated calcium carbonate is pre-molded and discharged as a filler; and then adding the pre-plastic activated filling material into a second process vector weighing machine bin, and running in a parallel double-screw extruder.
Preferably, in the step S3, the hardening agent, the compatibilizer, the nucleating agent and the dispersing agent are added into a bin of a vector weighing and metering machine in a third process, and the operation is performed in a parallel double-screw extruder.
The invention also provides manufacturing equipment for manufacturing the biodegradable paper material by using the stone mineral powder, which comprises an electric high-speed mixer and a granulating host, wherein one side of the electric high-speed mixer is provided with a plurality of feeders for injecting formula raw materials into a bin barrel, one side of the granulating host is provided with a host motor, and the host motor is connected with a parallel double-screw extruder.
Preferably, the parallel double-screw extruder is connected with a main machine blanking port and a side feeder.
Preferably, a plurality of weighing machines are arranged above the main machine blanking opening and the side feeding machine, and a plurality of stock bin barrels are arranged at the top of each weighing machine. The bin barrel is divided into S1, S2, S3, S4 and S5.
And a preferable A diagram, wherein a conveying belt is arranged at one end of a die head of the parallel double-screw extruder, a cutting machine is arranged on one side of the conveying belt, a vibration screening machine is arranged on one side of the cutting machine, and a finished product bin is arranged on one side of the vibration screening machine.
And in the preferred diagram B, one end of a die head of the parallel double-screw extruder is provided with a roller sheet pulling machine, and one side of the sheet pulling machine is provided with a sheet rolling machine which rolls into a finished product.
In the invention, the biodegradable paper material prepared from the stone mineral powder and the manufacturing method and equipment thereof have the beneficial effects that:
the invention can be fully degraded in the environment of the nature without being degraded in a special environment; the alloy does not contain eight heavy metals; does not contain 6P plastic (PE, PP, PVC, PS, PET, PC), EVA and the like; the internationally common biodegradable raw material is used as a carrier: (PBAT, PLA PHA PBS biodegradation material); the buried lines reduce the emission of CO2 by 50%; the source of the raw materials is food grade, and the raw materials are nontoxic and free of heavy metals in food application; more than 50% of carbon in the material comes from nature; energy conservation and carbon reduction, natural environment protection and material cyclic degradation; under the composting condition, the stone paper can be decomposed into carbon dioxide, water and organic fertilizer by microorganisms within 180 days, no toxic gas is generated in the degradation process, and the stone paper is a main raw material for biodegradation of the stone paper at present, so that the stone paper can be biodegraded and composted, and white pollution can be effectively resisted; as an emerging granular material, the plastic injection molding and the plastic suction are widely applied in life, and the pull tab is formed into a paper roll and then is used as paper, so that the plastic injection molding and plastic suction plastic bag can basically replace the traditional raw materials especially in the use of cutlery boxes, beverage cups and straw packages.
The full-biodegradable raw material of the invention protects the environment of the earth, protects the health of human beings and has no pollution in the manufacturing process.
Drawings
FIG. 1 is a schematic diagram of a structure A of a device for manufacturing biodegradable paper materials from stone mineral powder;
fig. 2 is a schematic diagram of a structure B of a device for manufacturing biodegradable paper materials from stone mineral powder according to the present invention.
In figure a: 1. an electric high-speed mixer; 2. weighing a metering machine; 3. a feeding machine; 4. a bin barrel; 5. a granulating host; 5A is a strip hole die head; 6. a main machine blanking port; 7. a side feeder; 8. a conveyor belt; 9. a blanking machine; 10. a vibration screening machine; 11. a finished product bin; 12. a host motor.
In the B diagram: 1. an electric high-speed mixer; 2. weighing a metering machine; 3. a feeding machine; 4. a bin barrel; 5. a granulating host; 6. a main machine blanking port; 7. a side feeder; b8, a flat die head; b9, a roller pulling-on machine; b10, a sheet winder; b11, rolling the sheet material into a finished product; 12. a host motor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
A biodegradable paper material prepared from stone mineral powder comprises the following raw materials in percentage by weight: 30% of EA material, 5% of ED material, 60% of EB material and 5% of ECM material; EF material 30%
The EA material is poly (adipic acid) -terephthalic acid-butanediol ester (PBAT); ED material is biodegradable material, EF material is reinforcing filler, EB material is mineral powder, ECM material is degrading auxiliary agent, and the degrading auxiliary agent comprises hardening agent, compatibilizer, nucleating agent and dispersing agent.
The preparation method of the biodegradable paper material prepared from the stone mineral powder comprises the following steps:
s1, taking poly (adipic acid) -terephthalic acid-butanediol ester (PBAT) as a main carrier, and adding the poly (adipic acid) -terephthalic acid-butanediol ester (PBAT) material into a bin barrel 4 of a first process vector weighing and measuring machine 2, and running in a parallel double-screw extruder;
s2, taking calcium carbonate in white ore, grinding the ore into ultrafine powder, namely calcium carbonate CaCO3, and then activating the calcium carbonate or stirring the calcium carbonate in a heated electric high-speed mixer 1, and discharging the activated calcium carbonate into a filler after pre-molding and activating; then adding the pre-plastic activated filling material into a bin barrel 4 of a vector weighing and metering machine 2 of the second working procedure, and running in a parallel double-screw extruder;
s3, adding the degradation auxiliary agent into a bin barrel 4 of a vector weighing and metering machine 2 in a third process, and running in a parallel double-screw extruder;
s4, taking the degradation raw material as a subcarrier, adding the degradation raw material into a bin barrel 4 of a vector weighing and measuring machine 2 in a fourth process, and running in a parallel double-screw extruder.
S5, adding the auxiliary reinforcing filler into a bin barrel 4 of a vector weighing and metering machine 2 in a fifth process, and running in a parallel double-screw extruder.
Meanwhile, the rotating precision metering machine is started to automatically achieve 0.1% precision, five groups of precision electronic metering machines are used for shunting, two groups of materials are fed laterally, and EB materials and EF materials are separated. Granulating and drying by a double-screw extruder to obtain granules, and manufacturing so long as the die head equipment 5A B8 of the host device can be separated into two materials, namely' one (granule material) and the second (sheet material), so as to obtain the fully-degradable stone paper material.
In this example, the temperature of each zone of the twin-screw extruder was 110-120-130-140-150-160-170-160-150-140-130-130 ℃.
In the embodiment, in S2, calcium carbonate in white ore is taken, the ore is ground into superfine powder with high calcium content of 1500 meshes, namely calcium carbonate CaCO3, and then the calcium carbonate is activated or stirred for 30S in a heated electric high-speed mixer 1, and is discharged as a filler after pre-molding activation; and then the pre-plastic activated filling material is added into a bin barrel 4 of a second process vector weighing and measuring machine 2, and the operation is carried out in a parallel double-screw extruder.
In the embodiment, in S3, the hardening agent, the compatibilizer, the nucleating agent and the dispersing agent are added into a bin barrel 4 of a vector weighing and measuring machine 2 for running in a parallel double-screw extruder in a third process.
Referring to the figure, the invention also provides a manufacturing device for manufacturing biodegradable paper materials from stone mineral powder, which comprises an electric high-speed mixer 1 and a granulating host machine 5, wherein one side of the electric high-speed mixer 1 is provided with a plurality of feeding machines 3 for injecting formula raw materials into a storage bin 4, one side of the granulating host machine 5 is provided with a host motor 12, and the host motor 12 is connected with a parallel double-screw extruder.
In this embodiment, the parallel twin screw extruder has a main inlet 6 and a side feeder 7.
In this embodiment, a plurality of weighing machines 2 are arranged above the main machine blanking opening 6 and the side feeding machine 7, a storage bin 4 is arranged at the top of each weighing machine 2, and each storage bin is divided into S1, S2, S3, S4 and S5.
Referring to fig. 1 (a diagram), in this embodiment, a conveyor belt 8 is disposed at one end of an outlet die 5A of a parallel twin-screw extruder, a cutter 9 is disposed on one side of the conveyor belt 8, a screen machine 10 is disposed on one side of the cutter 9, and a finished product bin 11 is disposed on one side of the screen machine 10.
Referring to FIG. 2, in the present embodiment (B diagram), one end of an outlet die B8 of a parallel twin-screw extruder is provided with
The front side of the sheet pulling machine B9 is provided with a flat die head B8 sheet discharging, and one side of the sheet pulling machine B9 is provided with a sheet rolling machine B10 for rolling up a sheet finished product B11.
The fully degradable stone paper is made of stone paper (Paper made from stone) of inorganic mineral powder, and a large amount of inorganic mineral powder (stone powder) and a small amount of degradable resin are used for manufacturing new paper with similar functional characteristics to wood pulp paper. The novel plastic packaging material is applied to a plurality of purposes such as notebooks, paper bags, food tools, cutlery boxes and packaging materials, and people pay more attention to environmental protection and harm to physical health.
The fully degradable stone paper making process has no need of cutting tree, no need of wood pulp and water, no addition of bleaching agent, no discharge of waste water and waste gas, and no pollution. In addition, the fully-degradable stone paper can be recycled, is degraded in natural environment, has no waste, can return to nature, does not need to add bleaching agent, strong acid, strong alkali and other agents, only needs resin, stone powder (calcium carbonate) and electric power, does not generate waste and waste gas in the process, saves energy and reduces carbon, and can be said to meet the main characteristics of environment-friendly paper.
The fully-degradable stone paper is not wood pulp paper or plastic film, but is prepared by grinding stone minerals into powder, adding degradation carriers and auxiliary agents, wherein the main components of the environment-friendly paper are minerals (stone powder) with the content of more than 70%, taking calcium carbonate in white stone minerals in China and environment-friendly PBAT degradation materials as carriers, carrying out processes of raw material compatible mixing, granulating, drawing into sheets, paper rolls and the like, and successfully developing paper meeting the environment-friendly degradation requirements, low price and high quality, and not only can replace the high-grade and high-unit price paper products in the current stage.
Full-degradable stone paper: the paper is made of stone powder and resin, does not contain wood pulp, can reduce the cutting raft of trees, does not add water in the process, has no wastewater discharge problem, is a pollution-free product, and has simple production process; the investment is large, the output is high, and the energy consumption is low; plant fibers are not adopted, trees are not cut down, a large amount of wood can be saved, and natural ecology is protected; no chemical raw materials such as strong acid, strong alkali, bleaching agent and the like are needed to be added, and no waste water, waste residue and toxic and harmful gas are discharged, thus the method belongs to a green environment-friendly product. The product has the characteristics of good mechanical property, water resistance, moisture resistance, moth resistance, folding resistance, tearing resistance, oil resistance, innocuity, tasteless, no pollution, stable geometric dimension, high printing definition, good effect, natural full degradation into water and carbon dioxide returning to nature after being used, and the like. And has wide application in color printing as common paper. Examples: food packaging, cartons, bags, cards, hangtags, notebooks, loose-leaf papers, month calendars, desk calendars, posters, books.
Example two
The difference between this embodiment and the first embodiment is that:
a biodegradable paper material prepared from stone mineral powder comprises the following raw materials in percentage by weight: 31% of EA material, 6% of ED material, 61% of EB material, 7% of ECM material and 10% of EF material
The EA material is poly (adipic acid) -terephthalic acid-butanediol ester (PBAT); ED material is degradation carrier, EF material is reinforcing filler, EB material is mineral powder filler, ECM material is degradation auxiliary agent, and the degradation auxiliary agent comprises hardening agent, compatibilizer, nucleating agent and dispersing agent.
The preparation method of the biodegradable paper material prepared from the stone mineral powder comprises the following steps:
s1, charging a storage bucket and EA material poly (adipic acid) -terephthalic acid-butanediol ester raw material (PBAT), adding a main raw material (PBAT) into a storage bucket 4 of a first process vector weighing and measuring machine 2, and running in a parallel double-screw extruder;
s2, taking calcium carbonate in white ore from a charging basket and an EB material, grinding the ore into ultrafine powder, namely calcium carbonate CaCO3, and then activating the calcium carbonate or stirring the calcium carbonate in a heated electric high-speed mixer 1, and discharging the activated calcium carbonate into a filler after pre-molding activation; and filling the pre-molded activated material filler into a bin barrel 4 of a second process vector weighing and metering machine 2, and running in a parallel double-screw extruder.
And S3, adding the charging basket and the ECM material degradation auxiliary agent material into a charging basket 4 of a vector weighing and metering machine 2 in a third working procedure, and running in a parallel double-screw extruder.
S4, charging basket and ED material biodegradation carrier raw materials, wherein the biodegradation carrier raw materials are added into a fourth process, and the fourth process is operated in a parallel double-screw extruder through a 4-bin barrel of a vector weighing machine 2.
S5, charging the barrel, adding the auxiliary reinforcing filler into a barrel 4 of a bin of a vector weighing and metering machine 2 in a fifth process, and running in a parallel double-screw extruder.
In this example, the temperature of each zone of the twin-screw extruder was 110-120-130-140-150-160-170-160-150-140-130-130 ℃.
In the embodiment, in S2, calcium carbonate in white ore is taken, the ore is ground into superfine powder with high calcium content of 2000 meshes, namely calcium carbonate CaCO3, and then the calcium carbonate is activated or stirred in a heated electric high-speed mixer 1 for 50S, and is discharged after pre-plastic activation; and then the pre-molded activating material is added into a bin barrel 4 of a second process vector weighing and measuring machine 2, and the operation is carried out in a parallel double-screw extruder.
In the embodiment, in S3, the hardening agent, the compatibilizer, the nucleating agent and the dispersing agent are added into a bin barrel 4 of a vector weighing and measuring machine 2 for running in a parallel double-screw extruder in a third process.
Example III
A biodegradable paper material prepared from stone mineral powder comprises the following raw materials in percentage by weight: 30% of EA material, 5% of ED material, 60% of EB material, 10% of ECM material and 30% of EF material
The EA material is poly (adipic acid) -terephthalic acid-butanediol ester (PBAT); ED material is a biodegradable carrier material, EB material is an ore powder filler, ECM material is a degradation auxiliary agent, the degradation auxiliary agent comprises a hardening agent, a compatibilizer, a nucleating agent and a dispersing agent, and EF material is a reinforcing filler.
The preparation method of the biodegradable paper material prepared from the stone mineral powder comprises the following steps:
s1, charging a storage bucket and EA material poly (adipic acid) -terephthalic acid-butanediol ester raw material (PBAT), adding a main raw material (PBAT) into a storage bucket 4 of a first process vector weighing and measuring machine 2, and running in a parallel double-screw extruder;
s2, taking calcium carbonate in white ore from a charging basket and an EB material, grinding the ore into ultrafine powder, namely calcium carbonate CaCO3, and then activating the calcium carbonate or stirring the calcium carbonate in a heated electric high-speed mixer 1, and discharging the activated calcium carbonate into a filler after pre-molding activation; and filling the pre-molded activated material filler into a bin barrel 4 of a second process vector weighing and metering machine 2, and running in a parallel double-screw extruder.
And S3, adding the charging basket and the ECM material degradation auxiliary agent material into a charging basket 4 of a vector weighing and metering machine 2 in a third working procedure, and running in a parallel double-screw extruder.
S4, charging basket and ED material biodegradation carrier raw materials, wherein the biodegradation carrier raw materials are added into a fourth process, and the fourth process is operated in a parallel double-screw extruder through a 4-bin barrel of a vector weighing machine 2.
S5, charging the barrel, adding the auxiliary reinforcing filler into a barrel 4 of a bin of a vector weighing and metering machine 2 in a fifth process, and running in a parallel double-screw extruder. Meanwhile, the rotating precision metering machine is started to automatically achieve 0.1% precision, five groups of precision electronic metering machines are used for shunting, two groups of materials are fed at the side, and EB materials and EF materials are separated. Granulating and drying by a double-screw extruder to obtain granules, and manufacturing so long as the die head equipment 5AB8 of the host device can be divided into two materials, namely' one (granule material) and the second (sheet material), to obtain the fully-degradable stone paper material.
In this example, the temperature of each zone of the twin-screw extruder was 110-120-130-140-150-160-170-160-150-140-130-130 ℃.
In the embodiment, in S2, calcium carbonate in white ore is taken, the ore is ground into ultrafine powder with high calcium content of 2500 meshes, namely calcium carbonate CaCO3, and then the calcium carbonate is activated or stirred in a heated electric high-speed mixer 1 for 60S, and is discharged as a filler after pre-molding activation; and then the pre-plastic activated filling material is added into a bin barrel 4 of a second process vector weighing and measuring machine 2, and the operation is carried out in a parallel double-screw extruder.
In the embodiment, in S3, the hardening agent, the compatibilizer, the nucleating agent and the dispersing agent are added into a bin barrel 4 of a vector weighing and measuring machine 2 for running in a parallel double-screw extruder in a third process.
In the embodiment, in S4, the biodegradable carrier raw material is added into a bin barrel 4 of a vector weighing and measuring machine 2 in a fourth process, and the mixture is operated in a parallel double-screw extruder.
In this embodiment, in S5, the auxiliary reinforcing filler is added to the fifth process and is run in a parallel twin-screw extruder through the hopper 4 of the vector weighing machine 2.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (10)

1. The biodegradable paper material prepared from the stone mineral powder is characterized by comprising the following raw materials in percentage by weight: 30-40% of EA material, 5-10% of ED material, 60-70% of EB material, 1-10% of ECM material and 5-30% of EF material;
the EA material is poly (adipic acid) -terephthalic acid-butanediol ester (PBAT); ED material is a biological degradation carrier, EB material is ore powder filler, ECM material is degradation auxiliary agent, EF material is auxiliary reinforcing filler, and the degradation auxiliary agent comprises hardening agent, compatibilizer, nucleating agent and dispersing agent; the biodegradable carrier comprises PBS and PHA or polylactic acid PLA, and the reinforcing filler comprises talcum powder, mica, illite powder and bamboo powder.
2. The manufacturing method for preparing the biodegradable paper material from the stone mineral powder is characterized by comprising the following steps of:
s1, charging basket and EA material poly adipic acid-terephthalic acid-butanediol ester raw material (PBAT), wherein the raw material (PBAT) main material is added into a storage basket (4) of a first process vector weighing and measuring machine (2), and the parallel double screw extruder runs;
s2, taking calcium carbonate in white ore from a charging basket and an EB material, grinding the ore into ultrafine powder, namely calcium carbonate CaCO3, and then activating the calcium carbonate or stirring the calcium carbonate in a heated electric high-speed mixer (1), and discharging the activated calcium carbonate into a filler after pre-molding activation; filling the pre-molded activated material filler into a bin barrel (4) of a second process vector weighing and metering machine (2), and running in a parallel double-screw extruder;
s3, adding the charging basket and the ECM material degradation auxiliary agent material into a charging basket (4) of a vector weighing and metering machine (2) in a third working procedure, and running in a parallel double-screw extruder;
s4, charging basket and ED material biodegradation carrier raw materials are added into a fourth process, and the material is operated in a parallel double-screw extruder through a feed bin barrel (4) of a vector weighing and measuring machine (2);
s5, charging the barrel, adding the auxiliary reinforcing filler into a fifth process, and running in a parallel double-screw extruder through a feed bin barrel (4) of a vector weighing and measuring machine (2);
simultaneously starting a rotary precision metering machine with the precision of 0.1%, shunting by using five groups of precision electronic metering machines, laterally feeding two groups of materials, separating EB materials and EF materials, granulating and drying the materials into particles by using a double-screw extruder to obtain a flat-mouth die head, and manufacturing the materials into a fully-degradable stone paper sheet material by using a second manufacturing method; the device is operated in a parallel double screw extruder, and different die head manufacturing equipment can be divided into two materials, namely a granular material and a sheet material.
3. The method for manufacturing biodegradable paper materials from stone mineral powder according to claim 2, wherein the temperature of each zone of the twin screw extruder is 110-120-130-140-150-160-170-160-150-140-130-130 ℃.
4. The method for manufacturing biodegradable paper materials from stone mineral powder according to claim 3, wherein the S2 charging basket EB material is characterized in that calcium carbonate in white ore is taken, the ore is ground into superfine powder with high calcium content of 1500-2500 meshes, namely calcium carbonate CaCO3, and then the calcium carbonate is activated or stirred in a heated electric high-speed mixer (1) for 30-60S, and the activated calcium carbonate is pre-molded and discharged into filling materials; and then adding the pre-plastic activated filling material into a bin barrel (4) of a second process vector weighing machine (2), and running in a parallel double-screw extruder.
5. The method for manufacturing biodegradable paper materials from stone mineral powder according to claim 4, wherein the S3 charging barrel ECM material is operated by adding hardening agent, compatibilizer, nucleating agent and dispersing agent into a parallel double screw extruder in a bin barrel (4) of a vector weighing machine (2) in a third process.
6. The utility model provides a manufacturing facility that biodegradable paper material was made to stone mineral powder, includes electric power high-speed blendor (1) and granulation host computer (5), its characterized in that, one side of electric power high-speed blendor (1) is equipped with a plurality of material loading machines (3) and pours into feed bin bucket (4) with the formula raw materials, one side of granulation host computer (5) granulation host computer discharge gate die head (5A) is equipped with host computer motor (12), host computer motor (12) are connected with parallel twin-screw extruder.
7. The manufacturing equipment for manufacturing biodegradable paper materials from stone mineral powder according to claim 6, characterized in that the parallel twin screw extruder is connected with a main machine feed opening inlet (6) and a side feeder raw material inlet (2 groups) (7).
8. The manufacturing equipment for preparing biodegradable paper materials from stone mineral powder according to claim 7, wherein a plurality of weighing and metering machines (2) are arranged above the main machine feed opening inlet (6), the main machine discharge opening die head (5A) and the side feeder raw material inlet 2 group (7), and a plurality of stock bin barrels (4) are arranged at the top of the weighing and metering machines (2).
9. The manufacturing equipment for preparing biodegradable paper materials from stone mineral powder according to claim 8, characterized in that one end of the outlet (5-a) of the parallel twin-screw extruder is provided with a conveyor belt (8), and one side of the conveyor belt (8) is provided with a blanking machine (9).
10. The manufacturing equipment for manufacturing biodegradable paper materials from stone mineral powder according to claim 9, characterized in that a vibration screening machine (10) is arranged on one side of the cutting machine (9), a finished product bin (11) is arranged on one side of the vibration screening machine (10), a flat die head (B8) sheet material discharging is arranged on the front side of the pulling-on machine (B9), and a sheet material finished product (B11) is rolled on one side of the pulling-on machine pulling-on device (B9) and is arranged on one side of the pulling-on machine (B10).
CN202311442890.7A 2023-11-02 2023-11-02 Biodegradable paper material prepared from stone mineral powder and manufacturing method and equipment thereof Pending CN117467250A (en)

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CN202311442890.7A CN117467250A (en) 2023-11-02 2023-11-02 Biodegradable paper material prepared from stone mineral powder and manufacturing method and equipment thereof

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Application Number Priority Date Filing Date Title
CN202311442890.7A CN117467250A (en) 2023-11-02 2023-11-02 Biodegradable paper material prepared from stone mineral powder and manufacturing method and equipment thereof

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CN117467250A true CN117467250A (en) 2024-01-30

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