CN112342833A - Preparation method of waterproof flame-retardant high-strength corrugated base paper - Google Patents
Preparation method of waterproof flame-retardant high-strength corrugated base paper Download PDFInfo
- Publication number
- CN112342833A CN112342833A CN202011219849.XA CN202011219849A CN112342833A CN 112342833 A CN112342833 A CN 112342833A CN 202011219849 A CN202011219849 A CN 202011219849A CN 112342833 A CN112342833 A CN 112342833A
- Authority
- CN
- China
- Prior art keywords
- retardant
- waterproof flame
- calcium carbonate
- corn starch
- flame
- 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
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/08—Corrugated paper or cardboard
-
- 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
- D21H17/61—Bitumen
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
-
- 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
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/34—Ignifugeants
-
- 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
- D21H27/30—Multi-ply
- D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
Abstract
The invention discloses a preparation method of waterproof flame-retardant high-strength corrugated base paper, which achieves very good waterproof performance and strength by adding special calcium carbonate in the preparation process of corrugated paper. The waterproof flame-retardant additive is added into the specially-made calcium carbonate, the components of the additive are matrix asphalt, expanded vermiculite, aluminum hydroxide and graphene oxide, wherein the expanded vermiculite has a layered structure and can form a barrier layer for flame-retardant protection, and the graphene oxide is added to form a net structure, so that the strength of paper can be improved, the aluminum hydroxide can be distributed more uniformly, and the flame-retardant effect is better; in order to prevent the expanded vermiculite from absorbing too much water under the high humidity condition, the invention also adds the matrix asphalt in the preparation process of the waterproof flame retardant additive, and the melted matrix asphalt can be filled into the expanded vermiculite, so that the flame retardant effect is further improved, and the water absorption capacity of the expanded vermiculite can be effectively reduced, thereby achieving the waterproof effect.
Description
Technical Field
The invention relates to the technical field of corrugated paper, in particular to a preparation method of waterproof flame-retardant high-strength corrugated base paper.
Background
The corrugated board is light in weight, cheap in price, wide in application, simple in manufacture, and capable of being recycled and even reused at the beginning of 18 th century and 19 th century, so that the application of the corrugated board is remarkably increased. By the beginning of the 20 th century, the packaging has been widely popularized, popularized and applied for various commodities. Packaging containers made using corrugated paperboard have enjoyed great success in competing with a variety of packaging materials, due to their unique properties and advantages for the beautification and protection of the contents. Becoming one of the main materials for manufacturing packaging containers which have not been used for a long time and have been developed rapidly so far.
The corrugated paper board is made up by using face paper, liner paper, core paper and corrugated paper which are made into corrugated form through the processes of adhesion. According to the requirement of commodity package, the corrugated board can be processed into single-sided corrugated boards, three-layer corrugated boards, five-layer corrugated boards, seven-layer corrugated boards, eleven-layer corrugated boards and the like. Single-sided corrugated cardboard is commonly used as a protective liner for packaging goods or to make portable card grids and dunnage to protect goods from shock or impact during transportation for storage, and three-ply and five-ply corrugated cardboard is commonly used in corrugated boxes. The package of many commodities is simple and exquisite by three-layer or five-layer corrugated paper board, and beautiful colorful figures and pictures are printed on the surface of the corrugated paper box or the corrugated paper box, thus not only protecting the internal commodities, but also publicizing and beautifying the internal commodities. A plurality of corrugated cases made of three-layer or five-layer corrugated boards or corrugated cases are directly sold on a sales counter to form a sales package. The seven-layer or eleven-layer corrugated board is mainly used for manufacturing packing cases for electromechanics, flue-cured tobaccos, furniture, motorcycles, large-scale household appliances and the like. In specific commodities, the corrugated board can be combined to form an inner sleeve box and an outer sleeve box, so that the corrugated board is convenient to manufacture and is convenient for containing, storing and transporting commodities. With the environmental protection requirement and the requirement of the national relevant policy, the commodity package made of the corrugated board has the trend of gradually replacing the wooden box package.
The invention researches a preparation method of waterproof flame-retardant high-strength corrugated base paper according to the current market demand.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a preparation method of waterproof flame-retardant high-strength corrugated base paper.
The technical scheme of the invention is as follows:
a preparation method of waterproof flame-retardant high-strength corrugated base paper comprises the following steps:
step one, pulping: adding water into the reaction kettle, heating and stirring, adding corn starch, and uniformly mixing to obtain a corn starch solution;
step two, thickening: adding ammonium persulfate into the corn starch solution under stirring, mixing uniformly, thickening the corn starch solution, heating to 95-100 ℃, and keeping the temperature for 5-15 min;
step three, waterproof flame retardant treatment: slowly adding the waterproof flame-retardant calcium carbonate into the corn starch solution, and uniformly mixing; dissolving aluminum sulfate to obtain an aluminum sulfate solution, stirring and adding the aluminum sulfate solution into the thickened corn starch solution, adding water, stirring, uniformly mixing, keeping the temperature at 85-90 ℃, and preserving heat for 20-30 min;
step four, drying: and uniformly spreading the pulp on a flat plate, extruding by using an extruder, and drying at 75-85 ℃ until the water content is 8-10%, thereby obtaining the corrugated base paper.
Preferably, in the first step, the mass ratio of the corn starch to the water is 1: (5-10).
Preferably, in the third step, the preparation method of the waterproof flame-retardant calcium carbonate comprises the following steps:
A. crushing limestone and calcining at the temperature of 800-1000 ℃ for 2-3h to obtain calcium hydroxide;
B. b, continuously digesting the calcium hydroxide obtained in the step A with water; aging for 1-3 h;
C. putting the calcium hydroxide into a carbonization tower for carbonization operation to obtain calcium carbonate with the pH value of 7.0-7.6;
D. carbonizing the obtained calcium carbonate, dissolving the calcium carbonate in water, and adding a waterproof flame-retardant additive to obtain mixed slurry;
E. carrying out high-speed ball milling on the obtained mixed slurry, and then filtering to remove impurities to obtain calcium carbonate fine slurry;
F. and dewatering to obtain the waterproof flame-retardant calcium carbonate powder.
Preferably, in the step D, the preparation method of the waterproof flame retardant additive comprises the following steps:
(1) weighing the following raw materials in parts by weight: 10 parts of matrix asphalt; 12-18 parts of expanded vermiculite; 5-8 parts of aluminum hydroxide and 0.2-0.5 part of graphene oxide, and then carrying out dry co-grinding on the aluminum hydroxide and the graphene oxide, and sieving the mixture through a 800-mesh sieve for later use;
(2) heating the asphalt to 150-180 ℃ to enable the asphalt to be in a molten state;
(3) and stirring the mixture of the expanded vermiculite, the aluminum hydroxide and the graphene oxide at the rotating speed of 800-.
Further preferably, in the step D, the softening point of the matrix asphalt is 45-55 ℃, and the penetration at 25 ℃ is 4-5 mm.
Preferably, in the third step, the addition amount of the waterproof flame-retardant calcium carbonate is 3-7% of the corn starch solution.
Preferably, in the third step, the mass fraction of aluminum sulfate in the aluminum sulfate solution is 5-8%.
The invention has the advantages that: the invention achieves very good waterproof performance and strength by adding the special calcium carbonate in the corrugated paper preparation process. The waterproof flame-retardant additive is added into the specially-made calcium carbonate, the components of the additive are matrix asphalt, expanded vermiculite, aluminum hydroxide and graphene oxide, wherein the expanded vermiculite has a layered structure and can form a barrier layer for flame-retardant protection, and the graphene oxide is added to form a net structure, so that the strength of paper can be improved, the aluminum hydroxide can be distributed more uniformly, and the flame-retardant effect is better; in order to prevent the expanded vermiculite from absorbing too much water under the high humidity condition, the invention also adds the matrix asphalt in the preparation process of the waterproof flame retardant additive, and the melted matrix asphalt can be filled into the expanded vermiculite, so that the flame retardant effect is further improved, and the water absorption capacity of the expanded vermiculite can be effectively reduced, thereby achieving the waterproof effect.
Detailed Description
Example 1:
a preparation method of waterproof flame-retardant high-strength corrugated base paper comprises the following steps:
step one, pulping: adding water into the reaction kettle, heating and stirring, adding corn starch, and uniformly mixing to obtain a corn starch solution;
step two, thickening: adding ammonium persulfate into the corn starch solution under stirring, uniformly mixing, thickening the corn starch solution, heating to 98 ℃, and keeping the temperature for 12 min;
step three, waterproof flame retardant treatment: slowly adding the waterproof flame-retardant calcium carbonate into the corn starch solution, and uniformly mixing; dissolving aluminum sulfate to obtain an aluminum sulfate solution, stirring and adding the aluminum sulfate solution into the thickened corn starch solution, adding water, stirring, uniformly mixing, keeping the temperature at 88 ℃, and keeping the temperature for 22 min;
step four, drying: and uniformly spreading the pulp on a flat plate, extruding by using an extruder, and drying at 82 ℃ until the water content is 8.8%, thereby obtaining the corrugated base paper.
In the first step, the mass ratio of the corn starch to the water is 1: 6.
in the third step, the preparation method of the waterproof flame-retardant calcium carbonate comprises the following steps:
A. crushing limestone, and calcining at 850 ℃ for 2.5h to obtain calcium hydroxide;
B. b, continuously digesting the calcium hydroxide obtained in the step A with water; and aging for 2 h;
C. putting the calcium hydroxide into a carbonization tower for carbonization operation to obtain calcium carbonate with the pH value of 7.3;
D. carbonizing the obtained calcium carbonate, dissolving the calcium carbonate in water, and adding a waterproof flame-retardant additive to obtain mixed slurry;
E. carrying out high-speed ball milling on the obtained mixed slurry, and then filtering to remove impurities to obtain calcium carbonate fine slurry;
F. and dewatering to obtain the waterproof flame-retardant calcium carbonate powder.
In the step D, the preparation method of the waterproof flame retardant additive comprises the following steps:
(1) weighing the following raw materials in parts by weight: 10 parts of matrix asphalt; 14 parts of expanded vermiculite; 6.5 parts of aluminum hydroxide and 0.35 part of graphene oxide, and then carrying out dry co-grinding on the aluminum hydroxide and the graphene oxide, and sieving with a 800-mesh sieve for later use;
(2) heating the asphalt to 175 ℃ to make the asphalt in a molten state;
(3) and stirring the mixture of the expanded vermiculite, the aluminum hydroxide and the graphene oxide at the rotation speed of 950rpm for 28min, then slowly dropwise adding the matrix asphalt, and continuously stirring to uniformly mix the components to obtain the waterproof flame-retardant additive.
In the step D, the softening point of the matrix asphalt is 45-55 ℃, and the penetration degree at 25 ℃ is 4-5 mm.
In the third step, the addition amount of the waterproof flame-retardant calcium carbonate is 5.5 percent of the corn starch solution.
In the third step, the mass fraction of aluminum sulfate in the aluminum sulfate solution is 7%.
Example 2:
a preparation method of waterproof flame-retardant high-strength corrugated base paper comprises the following steps:
step one, pulping: adding water into the reaction kettle, heating and stirring, adding corn starch, and uniformly mixing to obtain a corn starch solution;
step two, thickening: adding ammonium persulfate into the corn starch solution under stirring, mixing uniformly, thickening the corn starch solution, heating to 100 ℃, and keeping the temperature for 5 min;
step three, waterproof flame retardant treatment: slowly adding the waterproof flame-retardant calcium carbonate into the corn starch solution, and uniformly mixing; dissolving aluminum sulfate to obtain an aluminum sulfate solution, stirring and adding the aluminum sulfate solution into the thickened corn starch solution, adding water, stirring, uniformly mixing, keeping the temperature at 90 ℃, and preserving the heat for 20 min;
step four, drying: and uniformly spreading the pulp on a flat plate, extruding by using an extruder, and drying at 85 ℃ until the water content is 8.5%, thereby obtaining the corrugated base paper.
In the first step, the mass ratio of the corn starch to the water is 1: 10.
in the third step, the preparation method of the waterproof flame-retardant calcium carbonate comprises the following steps:
A. crushing limestone, and calcining at 800 ℃ for 3h to obtain calcium hydroxide;
B. b, continuously digesting the calcium hydroxide obtained in the step A with water; and aging for 1 h;
C. putting the calcium hydroxide into a carbonization tower for carbonization operation to obtain calcium carbonate with the pH value of 7.6;
D. carbonizing the obtained calcium carbonate, dissolving the calcium carbonate in water, and adding a waterproof flame-retardant additive to obtain mixed slurry;
E. carrying out high-speed ball milling on the obtained mixed slurry, and then filtering to remove impurities to obtain calcium carbonate fine slurry;
F. and dewatering to obtain the waterproof flame-retardant calcium carbonate powder.
In the step D, the preparation method of the waterproof flame retardant additive comprises the following steps:
(1) weighing the following raw materials in parts by weight: 10 parts of matrix asphalt; 18 parts of expanded vermiculite; 5 parts of aluminum hydroxide and 0.5 part of graphene oxide, then carrying out dry co-grinding on the aluminum hydroxide and the graphene oxide, and sieving with a 800-mesh sieve for later use;
(2) heating the asphalt to 150 ℃ to enable the asphalt to be in a molten state;
(3) and stirring the mixture of the expanded vermiculite, the aluminum hydroxide and the graphene oxide at the rotating speed of 1000rpm for 20min, then slowly dropwise adding the matrix asphalt, and continuously stirring to uniformly mix the components to obtain the waterproof flame-retardant additive.
In the step D, the softening point of the matrix asphalt is 45-55 ℃, and the penetration degree at 25 ℃ is 4-5 mm.
In the third step, the addition amount of the waterproof flame-retardant calcium carbonate is 7 percent of the corn starch solution.
In the third step, the mass fraction of aluminum sulfate in the aluminum sulfate solution is 5%.
Example 3:
a preparation method of waterproof flame-retardant high-strength corrugated base paper comprises the following steps:
step one, pulping: adding water into the reaction kettle, heating and stirring, adding corn starch, and uniformly mixing to obtain a corn starch solution;
step two, thickening: adding ammonium persulfate into the corn starch solution under stirring, uniformly mixing, thickening the corn starch solution, heating to 95 ℃, and keeping the temperature for 15 min;
step three, waterproof flame retardant treatment: slowly adding the waterproof flame-retardant calcium carbonate into the corn starch solution, and uniformly mixing; dissolving aluminum sulfate to obtain an aluminum sulfate solution, stirring the aluminum sulfate solution, adding water into the thickened corn starch solution, stirring, uniformly mixing, keeping the temperature at 85 ℃, and keeping the temperature for 30 min;
step four, drying: and uniformly spreading the pulp on a flat plate, extruding by using an extruder, and drying at 75 ℃ until the water content is 9.1%, thus obtaining the corrugated base paper.
In the first step, the mass ratio of the corn starch to the water is 1: 5.
in the third step, the preparation method of the waterproof flame-retardant calcium carbonate comprises the following steps:
A. crushing limestone, and calcining at 1000 ℃ for 2h to obtain calcium hydroxide;
B. b, continuously digesting the calcium hydroxide obtained in the step A with water; and aging for 3 h;
C. putting the calcium hydroxide into a carbonization tower for carbonization operation to obtain calcium carbonate with the pH value of 7.0;
D. carbonizing the obtained calcium carbonate, dissolving the calcium carbonate in water, and adding a waterproof flame-retardant additive to obtain mixed slurry;
E. carrying out high-speed ball milling on the obtained mixed slurry, and then filtering to remove impurities to obtain calcium carbonate fine slurry;
F. and dewatering to obtain the waterproof flame-retardant calcium carbonate powder.
In the step D, the preparation method of the waterproof flame retardant additive comprises the following steps:
(1) weighing the following raw materials in parts by weight: 10 parts of matrix asphalt; 12 parts of expanded vermiculite; 8 parts of aluminum hydroxide and 0.2 part of graphene oxide, then carrying out dry co-grinding on the aluminum hydroxide and the graphene oxide, and sieving with a 800-mesh sieve for later use;
(2) heating the asphalt to 180 ℃ to enable the asphalt to be in a molten state;
(3) and stirring the mixture of the expanded vermiculite, the aluminum hydroxide and the graphene oxide at the rotating speed of 800rpm for 30min, then slowly dropwise adding the matrix asphalt, and continuously stirring to uniformly mix the components to obtain the waterproof flame-retardant additive.
In the step D, the softening point of the matrix asphalt is 45-55 ℃, and the penetration degree at 25 ℃ is 4-5 mm.
In the third step, the addition amount of the waterproof flame-retardant calcium carbonate is 3 percent of the corn starch solution.
In the third step, the mass fraction of aluminum sulfate in the aluminum sulfate solution is 8%.
Comparative example 1
The matrix asphalt in the waterproof flame-retardant calcium carbonate in example 1 was removed, and the rest of the preparation conditions were unchanged.
The samples of examples 1 to 3 and comparative example 1 were tested on finished corrugated board and compared with the samples of finished corrugated board on the market, resulting in the following test data (the following are average values of 3 tests):
table 1: comparative test data for samples of examples 1-3 and comparative example 1;
| example 1 | Example 2 | Example 3 | Comparative example 1 | Market sample | |
| Quantitative g/cm2 | 125 | 125 | 125 | 125 | 125 |
| Thickness mm | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Transverse ring crush index N m/g | 19.7 | 19.9 | 19.0 | 19.8 | 15.5 |
| Burst index kPa.m2/g | 3.7 | 3.7 | 3.4 | 3.6 | 2.5 |
| Oxygen fingerA plurality of | 33 | 33 | 32 | 33 | 13 |
| Water absorption capacity% | 7.2 | 7.3 | 7.9 | 31.5 | 36.7 |
Remarking: the method for testing the water absorption capacity data comprises the following steps: weighing a corrugated paper finished product with the thickness of 10cm by 10cm (the weight is W0), immersing the corrugated paper finished product into purified water for 30min, taking out the corrugated paper finished product, wiping the surface of the corrugated paper finished product with dry cloth, and weighing the corrugated paper finished product by weight W1.
Water absorption% = (W1-W0)/W0 × 100%.
From the above test data, it can be known that the corrugated paper finished product made of the corrugated base paper of the invention not only has significantly improved flame retardant capability, but also has very good waterproof performance.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A preparation method of waterproof flame-retardant high-strength corrugated base paper is characterized by comprising the following steps:
step one, pulping: adding water into the reaction kettle, heating and stirring, adding corn starch, and uniformly mixing to obtain a corn starch solution;
step two, thickening: adding ammonium persulfate into the corn starch solution under stirring, mixing uniformly, thickening the corn starch solution, heating to 95-100 ℃, and keeping the temperature for 5-15 min;
step three, waterproof flame retardant treatment: slowly adding the waterproof flame-retardant calcium carbonate into the corn starch solution, and uniformly mixing; dissolving aluminum sulfate to obtain an aluminum sulfate solution, stirring and adding the aluminum sulfate solution into the thickened corn starch solution, adding water, stirring, uniformly mixing, keeping the temperature at 85-90 ℃, and preserving heat for 20-30 min;
step four, drying: and uniformly spreading the pulp on a flat plate, extruding by using an extruder, and drying at 75-85 ℃ until the water content is 8-10%, thereby obtaining the corrugated base paper.
2. The method for preparing the waterproof flame-retardant high-strength corrugated medium paper as claimed in claim 1, wherein in the first step, the mass ratio of the corn starch to the water is 1: (5-10).
3. The method for preparing the waterproof flame-retardant high-strength corrugated medium paper as claimed in claim 1, wherein in the third step, the method for preparing the waterproof flame-retardant calcium carbonate comprises the following steps:
A. crushing limestone and calcining at the temperature of 800-1000 ℃ for 2-3h to obtain calcium hydroxide;
B. b, continuously digesting the calcium hydroxide obtained in the step A with water; aging for 1-3 h;
C. putting the calcium hydroxide into a carbonization tower for carbonization operation to obtain calcium carbonate with the pH value of 7.0-7.6;
D. carbonizing the obtained calcium carbonate, dissolving the calcium carbonate in water, and adding a waterproof flame-retardant additive to obtain mixed slurry;
E. carrying out high-speed ball milling on the obtained mixed slurry, and then filtering to remove impurities to obtain calcium carbonate fine slurry;
F. and dewatering to obtain the waterproof flame-retardant calcium carbonate powder.
4. The method for preparing a waterproof flame-retardant high-strength corrugated medium paper as claimed in claim 3, wherein in the step D, the method for preparing the waterproof flame-retardant additive comprises the following steps:
(1) weighing the following raw materials in parts by weight: 10 parts of matrix asphalt; 12-18 parts of expanded vermiculite; 5-8 parts of aluminum hydroxide and 0.2-0.5 part of graphene oxide, and then carrying out dry co-grinding on the aluminum hydroxide and the graphene oxide, and sieving the mixture through a 800-mesh sieve for later use;
(2) heating the asphalt to 150-180 ℃ to enable the asphalt to be in a molten state;
(3) and stirring the mixture of the expanded vermiculite, the aluminum hydroxide and the graphene oxide at the rotating speed of 800-.
5. The method for preparing a waterproof flame-retardant high-strength corrugated medium paper as claimed in claim 4, wherein in the step D, the matrix asphalt has a softening point of 45-55 ℃ and a penetration of 4-5mm at 25 ℃.
6. The method for preparing the waterproof flame-retardant high-strength corrugated medium paper as claimed in claim 1, wherein in the third step, the waterproof flame-retardant calcium carbonate is added in an amount of 3-7% of the corn starch solution.
7. The method for preparing the waterproof flame-retardant high-strength corrugated medium paper as claimed in claim 1, wherein in the third step, the mass fraction of aluminum sulfate in the aluminum sulfate solution is 5-8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219849.XA CN112342833A (en) | 2020-11-05 | 2020-11-05 | Preparation method of waterproof flame-retardant high-strength corrugated base paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219849.XA CN112342833A (en) | 2020-11-05 | 2020-11-05 | Preparation method of waterproof flame-retardant high-strength corrugated base paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112342833A true CN112342833A (en) | 2021-02-09 |
Family
ID=74430019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011219849.XA Pending CN112342833A (en) | 2020-11-05 | 2020-11-05 | Preparation method of waterproof flame-retardant high-strength corrugated base paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112342833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672251A (en) * | 2022-04-21 | 2022-06-28 | 苏州佩琦材料科技有限公司 | Fireproof flame-retardant asphalt chassis coating and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226322A (en) * | 2011-06-15 | 2011-10-26 | 蓟县东赵乡福利造纸厂 | Preparation method of high-strength corrugated paper |
| CN103015252A (en) * | 2011-09-27 | 2013-04-03 | 天津市蓟县津京造纸厂 | Preparation method of corrugated paper |
| CN103410039A (en) * | 2013-06-28 | 2013-11-27 | 池州浙源纸业有限公司 | Method for preparing corrugated paper |
| CN105647425A (en) * | 2016-01-20 | 2016-06-08 | 南昌大学 | Preparation method of flame-retardant waterproof high-gram-weight paper board |
| CN107974860A (en) * | 2017-11-07 | 2018-05-01 | 广东松炀再生资源股份有限公司 | A kind of preparation method of flame retardant type high-strength corrugated paper |
-
2020
- 2020-11-05 CN CN202011219849.XA patent/CN112342833A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226322A (en) * | 2011-06-15 | 2011-10-26 | 蓟县东赵乡福利造纸厂 | Preparation method of high-strength corrugated paper |
| CN103015252A (en) * | 2011-09-27 | 2013-04-03 | 天津市蓟县津京造纸厂 | Preparation method of corrugated paper |
| CN103410039A (en) * | 2013-06-28 | 2013-11-27 | 池州浙源纸业有限公司 | Method for preparing corrugated paper |
| CN105647425A (en) * | 2016-01-20 | 2016-06-08 | 南昌大学 | Preparation method of flame-retardant waterproof high-gram-weight paper board |
| CN107974860A (en) * | 2017-11-07 | 2018-05-01 | 广东松炀再生资源股份有限公司 | A kind of preparation method of flame retardant type high-strength corrugated paper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672251A (en) * | 2022-04-21 | 2022-06-28 | 苏州佩琦材料科技有限公司 | Fireproof flame-retardant asphalt chassis coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107974860B (en) | Preparation method of flame-retardant high-strength corrugated paper | |
| CN105369669A (en) | Method for preparing high-strength corrugated paper | |
| CN102154900A (en) | Preparation method of anti-static carbon fibre corrugated paper | |
| CN105220581A (en) | A kind of manufacturing technique of fire-retarded corrugated paper plate | |
| CN108824064A (en) | A kind of high-performance environment protection type fluting medium and preparation method thereof | |
| CN112342833A (en) | Preparation method of waterproof flame-retardant high-strength corrugated base paper | |
| US2485587A (en) | Sheet lumber | |
| CN107974862A (en) | A kind of preparation method of fire-retarded corrugated paper | |
| CN111910456A (en) | Environment-friendly easily-decomposed corrugated paper and processing technology thereof | |
| CN107974864A (en) | A kind of preparation method of moisture-proof corrugated paper | |
| CN105862495A (en) | Preparation method of flame-retardant regenerated paperboard | |
| CN110512468B (en) | Paper pulp for corrugated board and preparation method thereof | |
| CN108277695B (en) | Method for manufacturing frosted base paper | |
| CN107354806A (en) | A kind of method for improving regenerated paper pulp performance | |
| CN107974865A (en) | A kind of preparation method of corrugated paper | |
| CN112301787A (en) | Preparation method of waterproof high-strength corrugated paper | |
| CN108166325A (en) | A kind of environmental protection fluting medium and preparation method thereof | |
| US2891918A (en) | Sulfite liquor base resin and method of making the same | |
| CN112409645A (en) | Preparation method of low-cost smokeless flame-retardant corrugated base paper | |
| CN107974863A (en) | A kind of preparation method of highly intensified corrugated paper | |
| CN1061556A (en) | A kind of artificial chipboard | |
| CN111634098A (en) | Preparation method of corrugated paper with flame retardant effect | |
| CN112376326A (en) | Preparation method for preparing high-strength corrugated paper from reclaimed materials | |
| US2323339A (en) | Momentarily consolidated board product | |
| CN112342806A (en) | Preparation method of low-cost low-gram-weight corrugated paper |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210209 |