CN114657806A - Thickened insulating paperboard and production method thereof - Google Patents

Thickened insulating paperboard and production method thereof Download PDF

Info

Publication number
CN114657806A
CN114657806A CN202011540362.1A CN202011540362A CN114657806A CN 114657806 A CN114657806 A CN 114657806A CN 202011540362 A CN202011540362 A CN 202011540362A CN 114657806 A CN114657806 A CN 114657806A
Authority
CN
China
Prior art keywords
parts
water
insulating paperboard
pulper
pulp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011540362.1A
Other languages
Chinese (zh)
Inventor
林惠添
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shantou Chenghai Xinan Dongshe Paper Mill
Original Assignee
Shantou Chenghai Xinan Dongshe Paper Mill
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shantou Chenghai Xinan Dongshe Paper Mill filed Critical Shantou Chenghai Xinan Dongshe Paper Mill
Priority to CN202011540362.1A priority Critical patent/CN114657806A/en
Publication of CN114657806A publication Critical patent/CN114657806A/en
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

The invention belongs to the field of paperboard production, and particularly relates to a thickened insulating paperboard and a production method thereof, aiming at the problems of weak interlayer bonding force, low tensile strength and poor waterproof and fireproof performance in use of the existing insulating paperboard, the thickened insulating paperboard is provided with the following scheme, wherein the thickened insulating paperboard comprises 50-70 parts of unbleached sulfate softwood pulp, 20-30 parts of water, 0.1-0.6 part of polyethylene glycol, 1-5 parts of polyacrylamide, 1-6 parts of a copolymer of 2-ethylhexyl acrylate and styrene, 1-10 parts of oxidized starch, 1-3 parts of tetrasodium pyrophosphate, 0.1-0.5 part of formaldehyde, 0.3-0.6 part of paranitrophenol and 1-5 parts of a waterproof film. The thickened insulating paperboard has the advantages of stronger interlayer bonding force, higher tensile strength, lower conductivity, better waterproof and fireproof performance in use, capability of avoiding cracking after long-time use and longer service life.

Description

Thickened insulating paperboard and production method thereof
Technical Field
The invention relates to the technical field of paperboard production, in particular to a thickened insulating paperboard and a production method thereof.
Background
The general name of the insulating paper board for the electrical industry, the air insulating paper board also needs to have higher tightness and voltage resistance strength, uses unbleached sulfate wood pulp as raw materials, is made by sticky beating, is used in motors, electric instruments and the like, generally comprises an air insulating paper board, an oil insulating paper board and the like, the insulating paper board is divided into a flat board type and a reel paper board type, the thickness of the flat board type is more than 0.5mm, the thickness of the reel paper board is 0.5mm or less, the raw materials of the insulating paper board are unbleached sulfate wood pulp and cotton pulp, the two raw materials are beaten respectively, purified water, pipelines and pulp pumps need to be used for production, are required to be cleaned and cleaned, and are not required to be mixed with impurities containing conductive components, and are manufactured by adopting a special insulating paper board machine;
however, the interlayer bonding force of the existing insulating paper board is weak, the tensile strength is low, and the waterproof and fireproof performance is poor in use.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a thickened insulating paperboard and a production method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a thickened insulating paperboard comprises the following raw materials in parts by weight: 50-70 parts of unbleached sulfate softwood pulp, 20-30 parts of water, 0.1-0.6 part of polyethylene glycol, 1-5 parts of polyacrylamide, 1-6 parts of a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, 1-10 parts of oxidized starch, 1-3 parts of tetrasodium pyrophosphate, 0.1-0.5 part of formaldehyde, 0.3-0.6 part of paranitrophenol, 1-5 parts of a waterproof film, 1-5 parts of glass fiber mesh cloth, 1-5 parts of fire-proof mud, 1-5 parts of a mesh-shaped carbon fiber reinforcing rib plate, 1-5 parts of a fire-proof coating and 1-5 parts of a UV wear-resistant coating.
Preferably, the feed comprises the following raw materials in parts by weight: 50 parts of unbleached sulfate softwood pulp, 20 parts of water, 0.1 part of polyethylene glycol, 1 part of polyacrylamide, 1 part of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 1 part of oxidized starch, 1 part of tetrasodium pyrophosphate, 0.1 part of formaldehyde, 0.3 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforced rib plate, 1 part of a fire-proof coating and 1 part of a UV wear-resistant coating.
The invention also provides a production method of the thickened insulating paperboard, which comprises the following steps:
s1: weighing the following raw materials in parts by weight: 50-70 parts of unbleached sulfate softwood pulp, 20-30 parts of water, 0.1-0.6 part of polyethylene glycol, 1-5 parts of polyacrylamide, 1-6 parts of a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, 1-10 parts of oxidized starch, 1-3 parts of tetrasodium pyrophosphate, 0.1-0.5 part of formaldehyde, 0.3-0.6 part of paranitrophenol, 1-5 parts of a waterproof film, 1-5 parts of glass fiber mesh cloth, 1-5 parts of fire-proof mud, 1-5 parts of a mesh-shaped carbon fiber reinforcing rib plate, 1-5 parts of a fire-proof coating and 1-5 parts of a UV wear-resistant coating;
s2: the water of S1 is sent into a filter box for primary filtration, large-particle impurities in the water are filtered, the primarily filtered water is conveyed into water softening equipment for softening, the softened water is sent into a reverse osmosis and water purifier again, water molecules and ionic mineral elements pass through the reverse osmosis membrane, most inorganic salts, organic matters, bacteria, viruses and the like dissolved in the water cannot permeate through the reverse osmosis membrane, so that the permeated pure water and the concentrated water which cannot permeate are strictly separated to obtain purified water, the salt content of the purified water can be reduced, various impurities in the water are effectively removed, conductive ions in the water are reduced, the conductivity is reduced, and the resistivity of the outlet water is also improved;
s3: sending the unbleached sulfate softwood pulp described in S1 into a pulper for smashing to obtain smashed pulp, sending the smashed pulp into the pulper for pulping, simultaneously adding polyethylene glycol, polyacrylamide, a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, oxidized starch, tetrasodium pyrophosphate, formaldehyde and p-nitrophenol into the pulper for stirring, adding the purified water described in S2 into the pulper for stirring, then sending the pulped pulp into a paper machine for processing into a semi-finished product, recovering fine fibers by using an air flotation machine in the paper machine processing process, sending the fine fibers into the pulper for continuous processing to obtain wet paper, increasing the content of the fine fibers in the pulp, improving the strength of an insulating paperboard and improving the strength of a high-humidity paper sheet;
s4: conveying the wet paper of the S3 into a conveyor for conveying, and conveying the wet paper into a hot press by the conveyor for hot pressing to obtain an insulating paperboard;
s5: and S4, feeding the insulating paperboard into a processing table, respectively sticking the two sides of the insulating paperboard with connection waterproof films, sticking connection glass fiber gridding cloth on the two waterproof films, coating fireproof mud on the two glass fiber gridding cloths, installing latticed carbon fiber reinforcing rib plates on the surfaces of the two fireproof mud, and finally spraying fireproof coatings and UV (ultraviolet) wear-resistant coatings on the surfaces of the two latticed carbon fiber reinforcing rib plates to obtain the thickened insulating paperboard.
Preferably, in S3, the pulping time of the pulper is 30-40 minutes, and the crushing rotation speed in the pulper is 8000-12000 r/min.
Preferably, in S3, the beating time of the beater is 40-60 minutes, and the crushing rotating speed in the pulper is 4000-6000 r/min.
Preferably, in the S4, the working temperature of the hot press is 130-180 ℃, and the pressure is 0.2-0.9 MPa.
Preferably, in S5, the waterproof film has a thickness of 0.3 to 0.6mm, and the fiberglass mesh cloth has a thickness of 1.5 to 2.5 mm.
Compared with the prior art, the invention has the beneficial effects that:
the thickened insulating paperboard has the advantages of strong interlayer bonding force, high tensile strength, low conductivity, good waterproof and fireproof performance in use, capability of avoiding cracking after long-time use and long service life.
Detailed Description
The technical solutions in the embodiments of the present invention will be made clear and fully described below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
A thickened insulating paperboard comprises the following raw materials in parts by weight: 50 parts of unbleached sulfate softwood pulp, 20 parts of water, 0.1 part of polyethylene glycol, 1 part of polyacrylamide, 1 part of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 1 part of oxidized starch, 1 part of tetrasodium pyrophosphate, 0.1 part of formaldehyde, 0.3 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforced rib plate, 1 part of a fire-proof coating and 1 part of a UV wear-resistant coating.
The embodiment also provides a production method of the thickened insulating paperboard, which comprises the following steps:
s1: weighing the following raw materials in parts by weight: 50 parts of unbleached sulfate softwood pulp, 20 parts of water, 0.1 part of polyethylene glycol, 1 part of polyacrylamide, 1 part of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 1 part of oxidized starch, 1 part of tetrasodium pyrophosphate, 0.1 part of formaldehyde, 0.3 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforcing rib plate, 1 part of a fire-proof coating and 1 part of a UV (ultraviolet) wear-resistant coating;
s2: the water of S1 is sent into a filter box for primary filtration, large-particle impurities in the water are filtered, the primarily filtered water is conveyed into water softening equipment for softening, the softened water is sent into a reverse osmosis and water purifier again, water molecules and ionic mineral elements pass through the reverse osmosis membrane, most inorganic salts, organic matters, bacteria, viruses and the like dissolved in the water cannot permeate through the reverse osmosis membrane, so that the permeated pure water and the concentrated water which cannot permeate are strictly separated to obtain purified water, the salt content of the purified water can be reduced, various impurities in the water are effectively removed, conductive ions in the water are reduced, the conductivity is reduced, and the resistivity of the outlet water is also improved;
s3: sending the unbleached sulfate softwood pulp described in S1 into a pulper for smashing to obtain smashed pulp, sending the smashed pulp into the pulper for pulping, simultaneously adding polyethylene glycol, polyacrylamide, a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, oxidized starch, tetrasodium pyrophosphate, formaldehyde and p-nitrophenol into the pulper for stirring, adding the purified water described in S2 into the pulper for stirring, then sending the pulped pulp into a paper machine for processing into a semi-finished product, recovering fine fibers by using an air flotation machine in the paper machine processing process, sending the fine fibers into the pulper for continuous processing to obtain wet paper, increasing the content of the fine fibers in the pulp, improving the strength of an insulating paperboard and improving the strength of a high-humidity paper sheet;
s4: conveying the wet paper of the S3 into a conveyor for conveying, and conveying the wet paper into a hot press by the conveyor for hot pressing to obtain an insulating paperboard;
s5: and S4, feeding the insulating paperboard into a processing table, respectively sticking the two sides of the insulating paperboard with connection waterproof films, sticking connection glass fiber gridding cloth on the two waterproof films, coating fireproof mud on the two glass fiber gridding cloths, installing latticed carbon fiber reinforcing rib plates on the surfaces of the two fireproof mud, and finally spraying fireproof coatings and UV (ultraviolet) wear-resistant coatings on the surfaces of the two latticed carbon fiber reinforcing rib plates to obtain the thickened insulating paperboard.
In this embodiment, in the step S3, the pulping time of the pulper is 30-40 minutes, and the crushing rotation speed in the pulper is 8000-.
In this embodiment, in S3, the beating time of the beater is 40-60 minutes, and the crushing rotation speed in the beater is 4000-.
In this embodiment, in S4, the working temperature of the hot press is 130 ℃ to 180 ℃ and the pressure is 0.2 MPa to 0.9 MPa.
In this embodiment, in S5, the waterproof film has a thickness of 0.3 to 0.6mm, and the glass fiber mesh cloth has a thickness of 1.5 to 2.5 mm.
Table data before and after purification of production water
Item Electrical conductivity Resistivity of effluent
Plain water 25μs/cm 16.8MΩ.cm
Purified water 0.8μs/cm 11.3MΩ.cm
Example two
A thickened insulating paperboard comprises the following raw materials in parts by weight: 55 parts of unbleached sulfate softwood pulp, 25 parts of water, 0.2 part of polyethylene glycol, 2 parts of polyacrylamide, 2 parts of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 2 parts of oxidized starch, 2 parts of tetrasodium pyrophosphate, 0.2 part of formaldehyde, 0.5 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforced rib plate, 1 part of a fire-proof coating and 1 part of a UV wear-resistant coating.
The embodiment also provides a production method of the thickened insulating paperboard, which comprises the following steps:
s1: weighing the following raw materials in parts by weight: 55 parts of unbleached sulfate softwood pulp, 25 parts of water, 0.2 part of polyethylene glycol, 2 parts of polyacrylamide, 2 parts of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 2 parts of oxidized starch, 2 parts of tetrasodium pyrophosphate, 0.2 part of formaldehyde, 0.5 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforcing rib plate, 1 part of a fire-proof coating and 1 part of a UV (ultraviolet) wear-resistant coating;
s2: the water of S1 is sent into a filter box for primary filtration, large-particle impurities in the water are filtered, the primarily filtered water is conveyed into water softening equipment for softening, the softened water is sent into a reverse osmosis and water purifier again, water molecules and ionic mineral elements pass through the reverse osmosis membrane, most inorganic salts, organic matters, bacteria, viruses and the like dissolved in the water cannot permeate through the reverse osmosis membrane, so that the permeated pure water and the concentrated water which cannot permeate are strictly separated to obtain purified water, the salt content of the purified water can be reduced, various impurities in the water are effectively removed, conductive ions in the water are reduced, the conductivity is reduced, and the resistivity of the outlet water is also improved;
s3: sending the unbleached sulfate softwood pulp described in S1 into a pulper for smashing to obtain smashed pulp, sending the smashed pulp into the pulper for pulping, simultaneously adding polyethylene glycol, polyacrylamide, a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, oxidized starch, tetrasodium pyrophosphate, formaldehyde and p-nitrophenol into the pulper for stirring, adding the purified water described in S2 into the pulper for stirring, then sending the pulped pulp into a paper machine for processing into a semi-finished product, recovering fine fibers by using an air flotation machine in the paper machine processing process, sending the fine fibers into the pulper for continuous processing to obtain wet paper, increasing the content of the fine fibers in the pulp, improving the strength of an insulating paperboard and improving the strength of a high-humidity paper sheet;
s4: conveying the wet paper obtained in the step S3 into a conveyor, and conveying the wet paper into a hot press by the conveyor for hot pressing to obtain an insulating paperboard;
s5: and S4, feeding the insulating paperboard into a processing table, respectively sticking the two sides of the insulating paperboard with connection waterproof films, sticking connection glass fiber gridding cloth on the two waterproof films, coating fireproof mud on the two glass fiber gridding cloths, installing latticed carbon fiber reinforcing rib plates on the surfaces of the two fireproof mud, and finally spraying fireproof coatings and UV (ultraviolet) wear-resistant coatings on the surfaces of the two latticed carbon fiber reinforcing rib plates to obtain the thickened insulating paperboard.
In this embodiment, in the step S3, the pulping time of the pulper is 30-40 minutes, and the crushing rotation speed in the pulper is 8000-.
In this embodiment, in S3, the beating time of the beater is 40-60 minutes, and the crushing rotation speed in the beater is 4000-.
In this embodiment, in S4, the working temperature of the hot press is 130 ℃ to 180 ℃ and the pressure is 0.2 MPa to 0.9 MPa.
In this embodiment, in S5, the waterproof film has a thickness of 0.3 to 0.6mm, and the glass fiber mesh cloth has a thickness of 1.5 to 2.5 mm.
EXAMPLE III
A thickened insulating paperboard comprises the following raw materials in parts by weight: 60 parts of unbleached sulfate softwood pulp, 25 parts of water, 0.2 part of polyethylene glycol, 3 parts of polyacrylamide, 3 parts of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 3 parts of oxidized starch, 3 parts of tetrasodium pyrophosphate, 0.2 part of formaldehyde, 0.2 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforced rib plate, 1 part of a fire-proof coating and 1 part of a UV wear-resistant coating.
The embodiment also provides a production method of the thickened insulating paperboard, which comprises the following steps:
s1: weighing the following raw materials in parts by weight: 60 parts of unbleached sulfate softwood pulp, 25 parts of water, 0.2 part of polyethylene glycol, 3 parts of polyacrylamide, 3 parts of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 3 parts of oxidized starch, 3 parts of tetrasodium pyrophosphate, 0.2 part of formaldehyde, 0.2 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforcing rib plate, 1 part of a fire-proof coating and 1 part of a UV (ultraviolet) wear-resistant coating;
s2: the water described in S1 is sent into a filter box for primary filtration, large-particle impurities in the water are filtered, the primarily filtered water is conveyed into water softening equipment for softening, the softened water is sent into a reverse osmosis and water purifying machine again, water molecules and ionic mineral elements pass through the reverse osmosis membrane, most inorganic salts, organic matters, bacteria, viruses and the like dissolved in the water cannot permeate through the reverse osmosis membrane, so that the permeated pure water and the concentrated water which cannot permeate through the reverse osmosis membrane are strictly separated, purified water is obtained, the salt content of the purified water can be reduced, various impurities in the water are effectively removed, conductive ions in the water are reduced, the conductivity is reduced, and the resistivity of the effluent water is also improved;
s3: sending the unbleached sulfate softwood pulp described in S1 into a pulper for smashing to obtain smashed pulp, sending the smashed pulp into the pulper for pulping, simultaneously adding polyethylene glycol, polyacrylamide, a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, oxidized starch, tetrasodium pyrophosphate, formaldehyde and p-nitrophenol into the pulper for stirring, adding the purified water described in S2 into the pulper for stirring, then sending the pulped pulp into a paper machine for processing into a semi-finished product, recovering fine fibers by using an air flotation machine in the paper machine processing process, sending the fine fibers into the pulper for continuous processing to obtain wet paper, increasing the content of the fine fibers in the pulp, improving the strength of an insulating paperboard and improving the strength of a high-humidity paper sheet;
s4: conveying the wet paper obtained in the step S3 into a conveyor, and conveying the wet paper into a hot press by the conveyor for hot pressing to obtain an insulating paperboard;
s5: and S4, feeding the insulating paperboard into a processing table, respectively sticking the two sides of the insulating paperboard with connection waterproof films, sticking connection glass fiber gridding cloth on the two waterproof films, coating fireproof mud on the two glass fiber gridding cloths, installing latticed carbon fiber reinforcing rib plates on the surfaces of the two fireproof mud, and finally spraying fireproof coatings and UV (ultraviolet) wear-resistant coatings on the surfaces of the two latticed carbon fiber reinforcing rib plates to obtain the thickened insulating paperboard.
In this embodiment, in the step S3, the pulping time of the pulper is 30-40 minutes, and the crushing rotation speed in the pulper is 8000-.
In this embodiment, in S3, the beating time of the beater is 40-60 minutes, and the pulverizing speed in the beater is 4000-6000 r/min.
In this embodiment, in S4, the working temperature of the hot press is 130 ℃ to 180 ℃ and the pressure is 0.2 MPa to 0.9 MPa.
In this embodiment, in S5, the waterproof film has a thickness of 0.3 to 0.6mm, and the glass fiber mesh cloth has a thickness of 1.5 to 2.5 mm.
Example four
A thickened insulating paperboard comprises the following raw materials in parts by weight: 60 parts of unbleached sulfate softwood pulp, 25 parts of water, 0.3 part of polyethylene glycol, 4 parts of polyacrylamide, 3 parts of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 4 parts of oxidized starch, 3 parts of tetrasodium pyrophosphate, 0.4 part of formaldehyde, 0.4 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforced rib plate, 1 part of a fire-proof coating and 1 part of a UV wear-resistant coating.
The embodiment also provides a production method of the thickened insulating paperboard, which comprises the following steps:
s1: weighing the following raw materials in parts by weight: 60 parts of unbleached sulfate softwood pulp, 25 parts of water, 0.3 part of polyethylene glycol, 4 parts of polyacrylamide, 3 parts of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 4 parts of oxidized starch, 3 parts of tetrasodium pyrophosphate, 0.4 part of formaldehyde, 0.4 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforcing rib plate, 1 part of a fire-proof coating and 1 part of a UV (ultraviolet) wear-resistant coating;
s2: the water described in S1 is sent into a filter box for primary filtration, large-particle impurities in the water are filtered, the primarily filtered water is conveyed into water softening equipment for softening, the softened water is sent into a reverse osmosis and water purifying machine again, water molecules and ionic mineral elements pass through the reverse osmosis membrane, most inorganic salts, organic matters, bacteria, viruses and the like dissolved in the water cannot permeate through the reverse osmosis membrane, so that the permeated pure water and the concentrated water which cannot permeate through the reverse osmosis membrane are strictly separated, purified water is obtained, the salt content of the purified water can be reduced, various impurities in the water are effectively removed, conductive ions in the water are reduced, the conductivity is reduced, and the resistivity of the effluent water is also improved;
s3: sending the unbleached sulfate softwood pulp described in S1 into a pulper for crushing to obtain crushed pulp, sending the crushed pulp into the pulper for pulping, simultaneously adding polyethylene glycol, polyacrylamide, a copolymer of acrylic acid-2-ethylhexyl ester and styrene, oxidized starch, tetrasodium pyrophosphate, formaldehyde and p-nitrophenol into the pulper for stirring, adding the purified water described in S2 into the pulper for stirring together, then sending the pulped pulp into a paper machine for processing into a semi-finished product, recovering fine fibers by using an air flotation machine in the paper machine processing process, sending the fine fibers into the pulper for continuous processing to obtain wet paper, so that the content of the fine fibers in the pulp can be increased, the strength of an insulating paper board can be improved, and the strength of a high-moisture paper sheet can also be improved;
s4: conveying the wet paper of the S3 into a conveyor for conveying, and conveying the wet paper into a hot press by the conveyor for hot pressing to obtain an insulating paperboard;
s5: and S4, feeding the insulating paperboard into a processing table, respectively sticking and connecting waterproof films to two sides of the insulating paperboard, sticking and connecting glass fiber mesh cloth on the two waterproof films, coating fireproof mud on the two glass fiber mesh cloths, installing latticed carbon fiber reinforcing rib plates on the surfaces of the two fireproof mud, and finally spraying a fireproof coating and a UV (ultraviolet) wear-resistant coating on the surfaces of the two latticed carbon fiber reinforcing rib plates to obtain the thickened insulating paperboard.
In this embodiment, in the step S3, the pulping time of the pulper is 30-40 minutes, and the crushing rotation speed in the pulper is 8000-.
In this embodiment, in S3, the beating time of the beater is 40-60 minutes, and the crushing rotation speed in the beater is 4000-.
In this embodiment, in S4, the working temperature of the hot press is 130 ℃ to 180 ℃ and the pressure is 0.2 MPa to 0.9 MPa.
In this embodiment, in S5, the waterproof film has a thickness of 0.3 to 0.6mm, and the glass fiber mesh cloth has a thickness of 1.5 to 2.5 mm.
EXAMPLE five
A thickened insulating paperboard comprises the following raw materials in parts by weight: 60 parts of unbleached sulfate softwood pulp, 30 parts of water, 0.3 part of polyethylene glycol, 5 parts of polyacrylamide, 5 parts of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 10 parts of oxidized starch, 1 part of tetrasodium pyrophosphate, 0.1 part of formaldehyde, 0.3 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforced rib plate, 1 part of a fire-proof coating and 1 part of a UV wear-resistant coating.
The embodiment also provides a production method of the thickened insulating paperboard, which comprises the following steps:
s1: weighing the following raw materials in parts by weight: 60 parts of unbleached sulfate softwood pulp, 30 parts of water, 0.3 part of polyethylene glycol, 5 parts of polyacrylamide, 5 parts of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 10 parts of oxidized starch, 1 part of tetrasodium pyrophosphate, 0.1 part of formaldehyde, 0.3 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fireproof mud, 1 part of a mesh-shaped carbon fiber reinforcing rib plate, 1 part of a fireproof coating and 1 part of a UV (ultraviolet) wear-resistant coating;
s2: the water of S1 is sent into a filter box for primary filtration, large-particle impurities in the water are filtered, the primarily filtered water is conveyed into water softening equipment for softening, the softened water is sent into a reverse osmosis and water purifier again, water molecules and ionic mineral elements pass through the reverse osmosis membrane, most inorganic salts, organic matters, bacteria, viruses and the like dissolved in the water cannot permeate through the reverse osmosis membrane, so that the permeated pure water and the concentrated water which cannot permeate are strictly separated to obtain purified water, the salt content of the purified water can be reduced, various impurities in the water are effectively removed, conductive ions in the water are reduced, the conductivity is reduced, and the resistivity of the outlet water is also improved;
s3: sending the unbleached sulfate softwood pulp described in S1 into a pulper for smashing to obtain smashed pulp, sending the smashed pulp into the pulper for pulping, simultaneously adding polyethylene glycol, polyacrylamide, a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, oxidized starch, tetrasodium pyrophosphate, formaldehyde and p-nitrophenol into the pulper for stirring, adding the purified water described in S2 into the pulper for stirring, then sending the pulped pulp into a paper machine for processing into a semi-finished product, recovering fine fibers by using an air flotation machine in the paper machine processing process, sending the fine fibers into the pulper for continuous processing to obtain wet paper, increasing the content of the fine fibers in the pulp, improving the strength of an insulating paperboard and improving the strength of a high-humidity paper sheet;
s4: conveying the wet paper of the S3 into a conveyor for conveying, and conveying the wet paper into a hot press by the conveyor for hot pressing to obtain an insulating paperboard;
s5: and S4, feeding the insulating paperboard into a processing table, respectively sticking the two sides of the insulating paperboard with connection waterproof films, sticking connection glass fiber gridding cloth on the two waterproof films, coating fireproof mud on the two glass fiber gridding cloths, installing latticed carbon fiber reinforcing rib plates on the surfaces of the two fireproof mud, and finally spraying fireproof coatings and UV (ultraviolet) wear-resistant coatings on the surfaces of the two latticed carbon fiber reinforcing rib plates to obtain the thickened insulating paperboard.
In this embodiment, in the step S3, the pulping time of the pulper is 30-40 minutes, and the crushing rotation speed in the pulper is 8000-.
In this embodiment, in S3, the beating time of the beater is 40-60 minutes, and the crushing rotation speed in the beater is 4000-.
In this embodiment, in S4, the working temperature of the hot press is 130 ℃ to 180 ℃ and the pressure is 0.2 MPa to 0.9 MPa.
In this embodiment, in S5, the waterproof film has a thickness of 0.3 to 0.6mm, and the glass fiber mesh cloth has a thickness of 1.5 to 2.5 mm.
Testing the tensile strength, the conductivity and the electrical strength of the existing product and the product of the embodiment by using detection equipment, and recording the test result;
tensile strength Electrical conductivity of Electric strength
Existing products 105 4％ 46
The product of the scheme 146 1.5％ 49
The results show that: the thickened insulating paperboard prepared by the invention has good tensile strength, conductivity and electrical strength.
Compared with the prior art, the invention has the technical progress that: the interlayer bonding force of the thickened insulating paperboard is higher, the tensile strength is higher, the conductivity is lower, the waterproof and fireproof performance is better when the thickened insulating paperboard is used, the cracking can be avoided even after the thickened insulating paperboard is used for a long time, and the service life is longer.

Claims (8)

1. The thickened insulating paperboard is characterized by comprising the following raw materials in parts by weight: 50-70 parts of unbleached sulfate softwood pulp, 20-30 parts of water, 0.1-0.6 part of polyethylene glycol, 1-5 parts of polyacrylamide, 1-6 parts of a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, 1-10 parts of oxidized starch, 1-3 parts of tetrasodium pyrophosphate, 0.1-0.5 part of formaldehyde, 0.3-0.6 part of paranitrophenol, 1-5 parts of a waterproof film, 1-5 parts of glass fiber mesh cloth, 1-5 parts of fire-proof mud, 1-5 parts of a mesh-shaped carbon fiber reinforcing rib plate, 1-5 parts of a fire-proof coating and 1-5 parts of a UV wear-resistant coating.
2. The thickened insulating paperboard according to claim 1, comprising the following raw materials in parts by weight: 50 parts of unbleached sulfate softwood pulp, 20 parts of water, 0.1 part of polyethylene glycol, 1 part of polyacrylamide, 1 part of a copolymer of acrylic acid-2-ethylhexyl ester and styrene, 1 part of oxidized starch, 1 part of tetrasodium pyrophosphate, 0.1 part of formaldehyde, 0.3 part of p-nitrophenol, 1 part of a waterproof film, 1 part of glass fiber mesh cloth, 1 part of fire-proof mud, 1 part of a latticed carbon fiber reinforced rib plate, 1 part of a fire-proof coating and 1 part of a UV wear-resistant coating.
3. The production method of the thickened insulating paperboard is characterized by comprising the following steps:
s1: weighing the following raw materials in parts by weight: 50-70 parts of unbleached sulfate softwood pulp, 20-30 parts of water, 0.1-0.6 part of polyethylene glycol, 1-5 parts of polyacrylamide, 1-6 parts of a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, 1-10 parts of oxidized starch, 1-3 parts of tetrasodium pyrophosphate, 0.1-0.5 part of formaldehyde, 0.3-0.6 part of paranitrophenol, 1-5 parts of a waterproof film, 1-5 parts of glass fiber mesh cloth, 1-5 parts of fire-proof mud, 1-5 parts of a mesh-shaped carbon fiber reinforcing rib plate, 1-5 parts of a fire-proof coating and 1-5 parts of a UV wear-resistant coating;
s2: the water described in S1 is sent into a filter box for primary filtration, large-particle impurities in the water are filtered, the primarily filtered water is conveyed into water softening equipment for softening, the softened water is sent into a reverse osmosis and water purifying machine again, water molecules and ionic mineral elements pass through the reverse osmosis membrane, most inorganic salts, organic matters, bacteria, viruses and the like dissolved in the water cannot permeate through the reverse osmosis membrane, so that the permeated pure water and the concentrated water which cannot permeate through the reverse osmosis membrane are strictly separated, purified water is obtained, the salt content of the purified water can be reduced, various impurities in the water are effectively removed, conductive ions in the water are reduced, the conductivity is reduced, and the resistivity of the effluent water is also improved;
s3: sending the unbleached sulfate softwood pulp described in S1 into a pulper for smashing to obtain smashed pulp, sending the smashed pulp into the pulper for pulping, simultaneously adding polyethylene glycol, polyacrylamide, a copolymer of acrylic acid-2-ethyl hexyl ester and styrene, oxidized starch, tetrasodium pyrophosphate, formaldehyde and p-nitrophenol into the pulper for stirring, adding the purified water described in S2 into the pulper for stirring, then sending the pulped pulp into a paper machine for processing into a semi-finished product, recovering fine fibers by using an air flotation machine in the paper machine processing process, sending the fine fibers into the pulper for continuous processing to obtain wet paper, increasing the content of the fine fibers in the pulp, improving the strength of an insulating paperboard and improving the strength of a high-humidity paper sheet;
s4: conveying the wet paper of the S3 into a conveyor for conveying, and conveying the wet paper into a hot press by the conveyor for hot pressing to obtain an insulating paperboard;
s5: and S4, feeding the insulating paperboard into a processing table, respectively sticking the two sides of the insulating paperboard with connection waterproof films, sticking connection glass fiber gridding cloth on the two waterproof films, coating fireproof mud on the two glass fiber gridding cloths, installing latticed carbon fiber reinforcing rib plates on the surfaces of the two fireproof mud, and finally spraying fireproof coatings and UV (ultraviolet) wear-resistant coatings on the surfaces of the two latticed carbon fiber reinforcing rib plates to obtain the thickened insulating paperboard.
4. The method as claimed in claim 3, wherein in S3, the pulping time of the pulper is 30-40 min, and the crushing speed in the pulper is 8000-.
5. The method as claimed in claim 3, wherein in S3, the beating time of the beater is 40-60 minutes, and the crushing speed in the pulper is 4000-6000 r/min.
6. The method for producing the thickened insulating paperboard as claimed in claim 3, wherein in S4, the working temperature of the hot press is 130-180 ℃, and the pressure is 0.2-0.9 MPa.
7. The method for producing a thickened insulating paperboard as claimed in claim 3, wherein in S5, the waterproof film has a thickness of 0.3-0.6mm, and the fiberglass mesh fabric has a thickness of 1.5-2.5 mm.
8. The method for producing the thickened insulating paperboard according to claim 3, wherein the thickness of the grid-shaped carbon fiber reinforcing rib is 3.5-4.5mm, and the thickness of the UV wear-resistant coating is 0.4-0.8 mm.
CN202011540362.1A 2020-12-23 2020-12-23 Thickened insulating paperboard and production method thereof Pending CN114657806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011540362.1A CN114657806A (en) 2020-12-23 2020-12-23 Thickened insulating paperboard and production method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011540362.1A CN114657806A (en) 2020-12-23 2020-12-23 Thickened insulating paperboard and production method thereof

Publications (1)

Publication Number Publication Date
CN114657806A true CN114657806A (en) 2022-06-24

Family

ID=82024726

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011540362.1A Pending CN114657806A (en) 2020-12-23 2020-12-23 Thickened insulating paperboard and production method thereof

Country Status (1)

Country Link
CN (1) CN114657806A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1357817A (en) * 1970-09-25 1974-06-26 Toray Industries Process for making paper forming pulp
CN105198116A (en) * 2015-08-31 2015-12-30 南京林业大学 Method for reducing wastewater generation during clean papermaking
CN106638079A (en) * 2016-12-08 2017-05-10 中山市为客包装制品有限公司 Method for producing antistatic paper pulp
CN109577070A (en) * 2018-12-06 2019-04-05 康峰（苏州）纸品有限公司 A kind of wear-resisting paper tube of environmental-protection flame-retardant and its preparation process
CN208932056U (en) * 2018-09-07 2019-06-04 成都君诚轨道交通设备有限公司 A kind of novel paper honeycomb

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1357817A (en) * 1970-09-25 1974-06-26 Toray Industries Process for making paper forming pulp
CN105198116A (en) * 2015-08-31 2015-12-30 南京林业大学 Method for reducing wastewater generation during clean papermaking
CN106638079A (en) * 2016-12-08 2017-05-10 中山市为客包装制品有限公司 Method for producing antistatic paper pulp
CN208932056U (en) * 2018-09-07 2019-06-04 成都君诚轨道交通设备有限公司 A kind of novel paper honeycomb
CN109577070A (en) * 2018-12-06 2019-04-05 康峰（苏州）纸品有限公司 A kind of wear-resisting paper tube of environmental-protection flame-retardant and its preparation process

Similar Documents

Publication Publication Date Title
Miao et al. Advances in the Control of Dissolved and Colloidal Substances Present in Papermaking Processes: A Brief Review.
JP6363596B2 (en) Chemical pulp manufacturing method
CN101200862A (en) Clean pulping process
CN108149504B (en) Semi-chemical pulp cleaning and pulping process for mixed raw materials of corn straws and wheat straws
CN104099795A (en) Chemical mechanical pulping method for recycling of wet strength waste paper
CN114293392B (en) Production process of high-strength environment-friendly fine dried noodle cardboard paper
CN104120613A (en) Wet-strength waste paper recycling chemical mechanical pulping system
CN110700005B (en) Preparation method of high-strength corrugated base paper
CN114182555B (en) Straw pulping method adopting composite enzyme preparation pretreatment and application of straw pulping method in preparation of paper straws
CN114657806A (en) Thickened insulating paperboard and production method thereof
EP2630296B1 (en) Processing of wood fibre fraction
CN111691215B (en) Straw zero-discharge pulping and lignin production novel process
CN102704301A (en) Process of coated kraft waste paper recycled intermediary paper
CN102677514A (en) Re-pulping method for high wet strength waste paper containing PAE resin
CN110219194A (en) A kind of production method for eliminating insulating board surface steam passage print
CN204589695U (en) The continuous beating system of two kinds of slurries
CN2832884Y (en) Non-chemical-machinery straw pulping system
CN204702996U (en) Interval and continuous beating system
CN112160180A (en) Production process of biochemical mechanical pulp
CN111926599A (en) Method for making paper by using straw fibers
CN113150308A (en) Method for preparing lignin asphalt emulsifier from soda pulping waste liquor
CN112796150A (en) Preparation method of paper pulp fiber
CN111945467A (en) Low-gram-weight high-strength craft paper and production method thereof
CN101760989B (en) Mixed pulp with high opacity, air permeability and tearing index and cultural paper prepared from the same
DE102019001127A1 (en) Method and device for anaerobic treatment of waste and / or process water with enzymes

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination