CN111235938A - Corrosion-resistant art paper and preparation method thereof - Google Patents
Corrosion-resistant art paper and preparation method thereof Download PDFInfo
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- CN111235938A CN111235938A CN202010125513.0A CN202010125513A CN111235938A CN 111235938 A CN111235938 A CN 111235938A CN 202010125513 A CN202010125513 A CN 202010125513A CN 111235938 A CN111235938 A CN 111235938A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
-
- 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
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- 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
Abstract
The invention discloses corrosion-resistant art paper which is prepared from the following raw materials in parts by weight: 5-15 parts of an anti-corrosion additive, 20-40 parts of modified sodium alginate fiber, 10-20 parts of bamboo pulp fiber, 20-35 parts of viscose fiber, 0.5-2 parts of ammonium sulfate, 5-10 parts of sodium carboxymethyl cellulose, 3-10 parts of nano titanium dioxide and 0.3-1.0 part of a flame retardant; the invention also discloses a preparation method of the corrosion-resistant art paper; modified sodium alginate fiber and modified sodium alginate molecular chain have a large amount of carboxyl and hydroxyl, can lose proton in aqueous solution and take the negative charge, so have stronger binding capacity to the dye ion, so art paper made through this modified sodium alginate fiber has excellent breaking strength on the one hand, on the other hand when pigment is paintd on the paper, modified sodium alginate fiber can adsorb the pigment, prevent this art paper to appear coloring difficultly, color insecure scheduling problem.
Description
Technical Field
The invention belongs to the technical field of papermaking, and particularly relates to corrosion-resistant art paper and a preparation method thereof.
Background
The production of art paper is divided into two basic processes of pulping and paper-making, wherein pulping is to use mechanical method, chemical method or combination method to dissociate plant fiber raw material into natural color pulp or bleached pulp. Paper making is the combination of pulp fibers suspended in water through various processes into sheets meeting various requirements. If coated printing paper is to be produced, this is achieved by drying the middle section or by coating after production into a web. Common art paper on the market has low toughness, poor corrosion resistance and easy damage in the storage process. The art paper produced by the common paper making technology can play a good artistic effect in practical application, but cannot completely meet the requirement of long-term storage of the artwork, and the corrosion to the paper of the artwork is enhanced due to the change of air humidity or the acidity and alkalinity of the storage environment, so that the problem needs to be solved by developing the art paper capable of resisting corrosion;
chinese invention patent CN106223110B discloses a preparation method of corrosion-resistant art paper, which comprises the following steps: preparing slurry: mixing and crushing trees or waste paper, adding auxiliary materials, stirring, bleaching and pulping for later use; paper forming: and drying, hot rolling, calendaring, drying, cutting and packaging the mixed slurry to obtain the corrosion-resistant art paper. The corrosion-resistant art paper prepared by the invention can resist the damage of corrosive chemicals in the environment to the artwork, the preparation method is simple and easy to operate, and the prepared paper has the advantages of high specific strength, high specific modulus, fatigue resistance, chemical corrosion resistance, low thermal expansion coefficient and moderate permeability, and can be widely applied to the field of art paper.
Disclosure of Invention
In order to overcome the technical problems, the invention provides corrosion-resistant art paper and a preparation method thereof.
The technical problems to be solved by the invention are as follows:
(1) the art paper produced by the existing paper making technology can exert good artistic effect in practical application, but cannot completely meet the requirement of long-term storage of the artwork, and the paper is damaged due to the fact that the corrosivity of the paper of the artwork is enhanced due to the change of air humidity or the acidity and alkalinity of the storage environment;
(2) when traditional fine arts paper was used for the drawing, pigment coating on the surface, the fibre can't adsorb pigment in the paper, leads to appearing pigment and colors slowly or color phenomenons such as insecure.
The purpose of the invention can be realized by the following technical scheme:
the corrosion-resistant art paper is characterized by being prepared from the following raw materials in parts by weight: 5-15 parts of an anti-corrosion additive, 20-40 parts of modified sodium alginate fiber, 10-20 parts of bamboo pulp fiber, 20-35 parts of viscose fiber, 0.5-2 parts of ammonium sulfate, 5-10 parts of sodium carboxymethyl cellulose, 3-10 parts of nano titanium dioxide and 0.3-1.0 part of a flame retardant;
the corrosion-resistant art paper is prepared by the following method:
step S1, mixing and crushing the modified sodium alginate fiber, the bamboo pulp fiber and the viscose fiber, adding 50-80 times of water, stirring for 2-4h at the rotating speed of 300-;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the slurry respectively, stirring for 30-60min, then performing jordaning, controlling the jordaning concentration to be 15-20 wt%, and the jordaning rotation speed to be 1200-1500r/min, and preparing mixed slurry for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot press to be 150-200 ℃, the rolling speed to be 20-30m/min and the pressure to be 15-20MPa to prepare prefabricated art paper, and drying the prefabricated art paper at 65-80 ℃ to prepare the corrosion-resistant art paper.
The invention prepares an anticorrosion art paper, in the preparation process, step S1 makes the raw materials such as modified sodium alginate fiber, bamboo pulp fiber into pulp before the paper, wherein the cross section of the modified sodium alginate fiber is stressed evenly, and has higher breaking strength, so the paper prepared by the method has good strength, and step S2 adds rosin sizing agent or paraffin sizing agent as an anticorrosion additive, the mixed sizing material particles can be firmly attached to the surface of the fiber macromolecules, to obtain stable free energy of specific surface, on one hand, the paper is endowed with hydrophobicity and fluid permeability resistance, on the other hand, the paper is endowed with excellent corrosion resistance, and the modified sodium alginate fiber and the modified sodium alginate molecular chain are provided with a large amount of carboxyl and hydroxyl, can lose proton negative charges in aqueous solution, so the paper has stronger binding capacity to dye ions, therefore, the art paper made of the modified sodium alginate fiber has excellent breaking strength, and when the pigment is smeared on paper, the modified sodium alginate fiber can adsorb the pigment, so that the problems that the art paper is difficult to color, is not firm to color and the like are prevented.
Further, the modified sodium alginate fiber is prepared by the following method:
(1) adding sodium alginate into deionized water, heating in a water bath at 45-60 ℃ and stirring for 2h, then adding 10% sodium hydroxide solution to adjust the pH until the pH is 9.5-10.0, then continuing stirring for 45min, adding epoxy chloropropane, heating to 75-80 ℃, reacting for 30-45min at the temperature, defoaming and standing to obtain modified sodium alginate, and controlling the weight ratio of the sodium alginate to the epoxy chloropropane to be 5: 1-1.2;
(2) adding the modified sodium alginate prepared in the step (1) and deionized water into a reaction kettle, stirring for 2h at the rotating speed of 550r/min of 450-.
In the step (1), sodium alginate is firstly subjected to primary treatment through a 10% sodium hydroxide solution, the crystallization area of the modified sodium alginate fiber prepared after the treatment is reduced, so that the cross section of the modified sodium alginate fiber is stressed more uniformly, the breaking strength of the modified sodium alginate fiber is enhanced, epichlorohydrin is added, the epichlorohydrin and the sodium alginate are crosslinked, an epichlorohydrin chain segment is introduced into macromolecules of the sodium alginate, a macromolecule branched chain is increased, and the breaking elongation of the macromolecule branched chain is further enhanced; and the modified sodium alginate molecular chain has a large amount of carboxyl and hydroxyl, and can lose proton with negative charge in aqueous solution, so that the modified sodium alginate fiber has strong binding capacity to dye ions, so that art paper made of the modified sodium alginate fiber has excellent breaking strength on one hand, and on the other hand, when the pigment is coated on paper, the modified sodium alginate fiber can adsorb the pigment, thereby preventing the problems of difficult coloring, infirm coloring and the like of the art paper.
Further, the anti-corrosion additive is one or two of a rosin sizing agent or a paraffin sizing agent.
Further, the flame retardant is prepared by the following method:
pulverizing and mixing magnesium silicate, calcium tripolyphosphate and sodium chloride to obtain fine powder, sieving with a 300-mesh sieve, placing into a reaction kettle, adding 50-80 parts by weight of water, stirring until the viscosity of the solution is not changed, stopping stirring to obtain the flame retardant, and controlling the weight ratio of magnesium silicate, calcium tripolyphosphate and sodium chloride to be 1: 2: 1-1.5.
Further, the corrosion-resistant art paper is placed in an environment with a relative humidity of 30-50%.
A preparation method of corrosion-resistant art paper comprises the following steps:
step S1, mixing and crushing the modified sodium alginate fiber, the bamboo pulp fiber and the viscose fiber, adding 50-80 times of water, stirring for 2-4h at the rotating speed of 300-;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the slurry respectively, stirring for 30-60min, then performing jordaning, controlling the jordaning concentration to be 15-20 wt%, and the jordaning rotation speed to be 1200-1500r/min, and preparing mixed slurry for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot press to be 150-200 ℃, the rolling speed to be 20-30m/min and the pressure to be 15-20MPa to prepare prefabricated art paper, and drying the prefabricated art paper at 65-80 ℃ to prepare the corrosion-resistant art paper.
Has the advantages that:
(1) the invention prepares an anticorrosion art paper, in the preparation process, step S1 makes the raw materials such as modified sodium alginate fiber, bamboo pulp fiber into pulp before the paper, wherein the cross section of the modified sodium alginate fiber is stressed evenly, and has higher breaking strength, so the paper prepared by the method has good strength, and step S2 adds rosin sizing agent or paraffin sizing agent as an anticorrosion additive, the mixed sizing material particles can be firmly attached to the surface of the fiber macromolecules, to obtain stable free energy of specific surface, on one hand, the paper is endowed with hydrophobicity and fluid permeability resistance, on the other hand, the paper is endowed with excellent corrosion resistance, and the modified sodium alginate fiber and the modified sodium alginate molecular chain are provided with a large amount of carboxyl and hydroxyl, can lose proton negative charges in aqueous solution, so the paper has stronger binding capacity to dye ions, therefore, the art paper made of the modified sodium alginate fiber has excellent breaking strength, and the modified sodium alginate fiber can adsorb the pigment when the pigment is coated on paper, so that the problems of difficult coloring, instable coloring and the like of the art paper are prevented;
(2) the invention also prepares a modified sodium alginate fiber, in the preparation process, the sodium alginate is firstly subjected to primary treatment by 10 percent sodium hydroxide solution in the step (1), the crystallization area of the modified sodium alginate fiber prepared after the treatment is reduced, so that the cross section of the modified sodium alginate fiber is stressed more uniformly, the breaking strength of the modified sodium alginate fiber is enhanced, then epichlorohydrin is added, the epichlorohydrin and the sodium alginate are crosslinked, an epichlorohydrin chain segment is introduced into macromolecules of the sodium alginate, a macromolecule branched chain is increased, and the breaking elongation of the modified sodium alginate fiber is further enhanced; and the modified sodium alginate molecular chain has a large amount of carboxyl and hydroxyl, and can lose proton with negative charge in aqueous solution, so that the modified sodium alginate fiber has strong binding capacity to dye ions, so that art paper made of the modified sodium alginate fiber has excellent breaking strength on one hand, and on the other hand, when the pigment is coated on paper, the modified sodium alginate fiber can adsorb the pigment, thereby preventing the problems of difficult coloring, infirm coloring and the like of the art paper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The corrosion-resistant art paper is characterized by being prepared from the following raw materials in parts by weight: 5 parts of an anti-corrosion additive, 20 parts of modified sodium alginate fiber, 10 parts of bamboo pulp fiber, 20 parts of viscose, 0.5 part of ammonium sulfate, 5 parts of sodium carboxymethyl cellulose, 3 parts of nano titanium dioxide and 0.3 part of a flame retardant;
the corrosion-resistant art paper is prepared by the following method:
step S1, mixing and crushing the modified sodium alginate fibers, the bamboo pulp fibers and the viscose fibers, adding 50 times of water, stirring for 2 hours at the rotating speed of 300r/min, then adding ammonium sulfate, heating in a water bath at 55 ℃, continuing stirring for 30 minutes, adding 80 times of water again, stirring for 45 minutes, pulping, and controlling the pulping degree to be 40SR to obtain pulp;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the pulp, stirring for 30min, and then performing pulp grinding, wherein the pulp grinding concentration is controlled to be 15 wt%, and the pulp grinding rotation speed is controlled to be 1200r/min, so as to prepare mixed pulp for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot rolling mill to be 150 ℃, the rolling speed to be 20m/min and the pressure intensity to be 15MPa, preparing prefabricated art paper, and drying the prefabricated art paper at 65 ℃ to prepare the corrosion-resistant art paper.
The anti-corrosion additive is a rosin sizing agent.
The flame retardant is prepared by the following method:
pulverizing and mixing magnesium silicate, calcium tripolyphosphate and sodium chloride to obtain fine powder, sieving with a 300-mesh sieve, placing into a reaction kettle, adding 50 parts by weight of water, stirring until the viscosity of the solution is not changed, stopping stirring to obtain the flame retardant, and controlling the weight ratio of magnesium silicate, calcium tripolyphosphate and sodium chloride to be 1: 2: 1.
The modified sodium alginate fiber is prepared by the following method:
(1) adding sodium alginate into deionized water, heating in a water bath at 50 ℃ and stirring for 2h, then adding a 10% sodium hydroxide solution to adjust the pH until the pH is 9.5, then continuing stirring for 45min, adding epoxy chloropropane, heating to 75 ℃, reacting for 30min at the temperature, defoaming and standing to prepare modified sodium alginate, and controlling the weight ratio of the sodium alginate to the epoxy chloropropane to be 5: 1;
(2) adding the modified sodium alginate prepared in the step (1) and deionized water into a reaction kettle, stirring for 2 hours at the rotating speed of 450r/min to prepare a solution with the viscosity of 10000mPa & s, then defoaming for 12 hours in vacuum to prepare a spinning stock solution, then spinning into a 2% sodium chloride coagulating bath, washing with water, and drying to prepare the modified sodium alginate fiber.
Example 2
The corrosion-resistant art paper is characterized by being prepared from the following raw materials in parts by weight: 8 parts of an anti-corrosion additive, 25 parts of modified sodium alginate fiber, 14 parts of bamboo pulp fiber, 25 parts of viscose, 1 part of ammonium sulfate, 6 parts of sodium carboxymethyl cellulose, 5 parts of nano titanium dioxide and 0.5 part of a flame retardant;
the corrosion-resistant art paper is prepared by the following method:
step S1, mixing and crushing the modified sodium alginate fibers, the bamboo pulp fibers and the viscose fibers, adding 50 times of water, stirring for 2 hours at the rotating speed of 300r/min, then adding ammonium sulfate, heating in a water bath at 55 ℃, continuing stirring for 30 minutes, adding 80 times of water again, stirring for 45 minutes, pulping, and controlling the pulping degree to be 40SR to obtain pulp;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the pulp, stirring for 30min, and then performing pulp grinding, wherein the pulp grinding concentration is controlled to be 15 wt%, and the pulp grinding rotation speed is controlled to be 1200r/min, so as to prepare mixed pulp for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot rolling mill to be 150 ℃, the rolling speed to be 20m/min and the pressure intensity to be 15MPa, preparing prefabricated art paper, and drying the prefabricated art paper at 65 ℃ to prepare the corrosion-resistant art paper.
The rest is the same as example 1.
Example 3
The corrosion-resistant art paper is characterized by being prepared from the following raw materials in parts by weight: 5-15 parts of an anti-corrosion additive, 20-40 parts of modified sodium alginate fiber, 10-20 parts of bamboo pulp fiber, 20-35 parts of viscose fiber, 0.5-2 parts of ammonium sulfate, 5-10 parts of sodium carboxymethyl cellulose, 3-10 parts of nano titanium dioxide and 0.3-1.0 part of a flame retardant;
the corrosion-resistant art paper is prepared by the following method:
step S1, mixing and crushing the modified sodium alginate fibers, the bamboo pulp fibers and the viscose fibers, adding 50 times of water, stirring for 2 hours at the rotating speed of 300r/min, then adding ammonium sulfate, heating in a water bath at 55 ℃, continuing stirring for 30 minutes, adding 80 times of water again, stirring for 45 minutes, pulping, and controlling the pulping degree to be 40SR to obtain pulp;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the pulp, stirring for 30min, and then performing pulp grinding, wherein the pulp grinding concentration is controlled to be 15 wt%, and the pulp grinding rotation speed is controlled to be 1200r/min, so as to prepare mixed pulp for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot rolling mill to be 150 ℃, the rolling speed to be 20m/min and the pressure intensity to be 15MPa, preparing prefabricated art paper, and drying the prefabricated art paper at 65 ℃ to prepare the corrosion-resistant art paper.
The rest is the same as example 1.
Example 4
The corrosion-resistant art paper is characterized by being prepared from the following raw materials in parts by weight: 5-15 parts of an anti-corrosion additive, 20-40 parts of modified sodium alginate fiber, 10-20 parts of bamboo pulp fiber, 20-35 parts of viscose fiber, 0.5-2 parts of ammonium sulfate, 5-10 parts of sodium carboxymethyl cellulose, 3-10 parts of nano titanium dioxide and 0.3-1.0 part of a flame retardant;
the corrosion-resistant art paper is prepared by the following method:
step S1, mixing and crushing the modified sodium alginate fibers, the bamboo pulp fibers and the viscose fibers, adding 50 times of water, stirring for 2 hours at the rotating speed of 300r/min, then adding ammonium sulfate, heating in a water bath at 55 ℃, continuing stirring for 30 minutes, adding 80 times of water again, stirring for 45 minutes, pulping, and controlling the pulping degree to be 40SR to obtain pulp;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the pulp, stirring for 30min, and then performing pulp grinding, wherein the pulp grinding concentration is controlled to be 15 wt%, and the pulp grinding rotation speed is controlled to be 1200r/min, so as to prepare mixed pulp for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot rolling mill to be 150 ℃, the rolling speed to be 20m/min and the pressure intensity to be 15MPa, preparing prefabricated art paper, and drying the prefabricated art paper at 65 ℃ to prepare the corrosion-resistant art paper.
The rest is the same as example 1.
Comparative example 1
Compared with example 1, the preparation method of the comparative example is as follows, wherein sodium alginate fiber is not modified:
step S1, mixing and crushing sodium alginate fibers, bamboo pulp fibers and viscose fibers, adding 50 times of water, stirring for 2 hours at the rotating speed of 300r/min, then adding ammonium sulfate, heating in 55 ℃ water bath, continuing stirring for 30 minutes, adding 80 times of water again, stirring for 45 minutes, pulping, and controlling the pulping degree to be 40SR to obtain pulp;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the pulp, stirring for 30min, and then performing pulp grinding, wherein the pulp grinding concentration is controlled to be 15 wt%, and the pulp grinding rotation speed is controlled to be 1200r/min, so as to prepare mixed pulp for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot rolling mill to be 150 ℃, the rolling speed to be 20m/min and the pressure intensity to be 15MPa, preparing prefabricated art paper, and drying the prefabricated art paper at 65 ℃ to prepare the corrosion-resistant art paper.
Comparative example 2
Compared with example 1, the preparation method of the comparative example is as follows without adding the modified sodium alginate fiber:
step S1, mixing and crushing bamboo pulp fiber and viscose fiber, adding 50 times of water, stirring for 2 hours at the rotating speed of 300r/min, then adding ammonium sulfate, heating in 55 ℃ water bath, continuing stirring for 30 minutes, adding 80 times of water again, stirring for 45 minutes, pulping, and controlling the pulping degree to be 40SR to obtain pulp;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the pulp, stirring for 30min, and then performing pulp grinding, wherein the pulp grinding concentration is controlled to be 15 wt%, and the pulp grinding rotation speed is controlled to be 1200r/min, so as to prepare mixed pulp for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot rolling mill to be 150 ℃, the rolling speed to be 20m/min and the pressure intensity to be 15MPa, preparing prefabricated art paper, and drying the prefabricated art paper at 65 ℃ to prepare the corrosion-resistant art paper.
Comparative example 3
This comparative example is a corrosion resistant art paper in the market.
The cut sizes of examples 1 to 4 and comparative examples 1 to 3 were 50X50cm and were tested for acid and alkali resistance for 30 days, using the ratio of the contaminated area of the art paper to the total area of the paper as a reference parameter, and for ink absorption, with the results shown in the following table;
as can be seen from the above table, the percentage of the contaminated area in the acid test of examples 1 to 4 is 1.0 to 1.2%, and the percentage in the alkali test is 1.2 to 1.5, and the ink absorption is strong; comparative examples 1 to 3 the percentage of the contaminated area in the acid test was 1.5 to 1.8%, the percentage in the alkaline test was 1.6 to 2.1, the ink absorption of comparative example 1 was strong, and the ink absorption of comparative examples 2 to 3 was general; therefore, the modified sodium alginate fiber and the modified sodium alginate molecular chain have a large number of carboxyl and hydroxyl groups, protons can be lost in an aqueous solution and have negative charges, and the modified sodium alginate fiber has strong binding capacity to dye ions, so that art paper made of the modified sodium alginate fiber has excellent breaking strength on one hand, and when the pigment is coated on paper, the modified sodium alginate fiber can adsorb the pigment, and the problems that the art paper is difficult to color, is not firm to color and the like are solved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (6)
1. The corrosion-resistant art paper is characterized by being prepared from the following raw materials in parts by weight: 5-15 parts of an anti-corrosion additive, 20-40 parts of modified sodium alginate fiber, 10-20 parts of bamboo pulp fiber, 20-35 parts of viscose fiber, 0.5-2 parts of ammonium sulfate, 5-10 parts of sodium carboxymethyl cellulose, 3-10 parts of nano titanium dioxide and 0.3-1.0 part of a flame retardant;
the corrosion-resistant art paper is prepared by the following method:
step S1, mixing and crushing the modified sodium alginate fiber, the bamboo pulp fiber and the viscose fiber, adding 50-80 times of water, stirring for 2-4h at the rotating speed of 300-;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the slurry respectively, stirring for 30-60min, then performing jordaning, controlling the jordaning concentration to be 15-20 wt%, and the jordaning rotation speed to be 1200-1500r/min, and preparing mixed slurry for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot press to be 150-200 ℃, the rolling speed to be 20-30m/min and the pressure to be 15-20MPa to prepare prefabricated art paper, and drying the prefabricated art paper at 65-80 ℃ to prepare the corrosion-resistant art paper.
2. The corrosion-resistant art paper as claimed in claim 1, wherein the modified sodium alginate fiber is prepared by the following method:
(1) adding sodium alginate into deionized water, heating in a water bath at 45-60 ℃ and stirring for 2h, then adding 10% sodium hydroxide solution to adjust the pH until the pH is 9.5-10.0, then continuing stirring for 45min, adding epoxy chloropropane, heating to 75-80 ℃, reacting for 30-45min at the temperature, defoaming and standing to obtain modified sodium alginate, and controlling the weight ratio of the sodium alginate to the epoxy chloropropane to be 5: 1-1.2;
(2) adding the modified sodium alginate prepared in the step (1) and deionized water into a reaction kettle, stirring for 2h at the rotating speed of 550r/min of 450-.
3. The corrosion-resistant art paper as claimed in claim 1, wherein the corrosion-resistant additive is one or both of a rosin sizing agent and a paraffin sizing agent.
4. The corrosion-resistant art paper as claimed in claim 1, wherein the flame retardant is prepared by a method comprising:
pulverizing and mixing magnesium silicate, calcium tripolyphosphate and sodium chloride to obtain fine powder, sieving with a 300-mesh sieve, placing into a reaction kettle, adding 50-80 parts by weight of water, stirring until the viscosity of the solution is not changed, stopping stirring to obtain the flame retardant, and controlling the weight ratio of magnesium silicate, calcium tripolyphosphate and sodium chloride to be 1: 2: 1-1.5.
5. The corrosion-resistant art paper as claimed in claim 1, wherein the corrosion-resistant art paper is placed in an environment having a relative humidity of 30-50%.
6. A preparation method of corrosion-resistant art paper is characterized by comprising the following steps:
step S1, mixing and crushing the modified sodium alginate fiber, the bamboo pulp fiber and the viscose fiber, adding 50-80 times of water, stirring for 2-4h at the rotating speed of 300-;
step S2, adding an anti-corrosion additive, sodium carboxymethyl cellulose, nano titanium dioxide and a flame retardant into the slurry respectively, stirring for 30-60min, then performing jordaning, controlling the jordaning concentration to be 15-20 wt%, and the jordaning rotation speed to be 1200-1500r/min, and preparing mixed slurry for later use;
and step S3, adding the prepared mixed slurry into a hot rolling mill, controlling the temperature of the hot press to be 150-200 ℃, the rolling speed to be 20-30m/min and the pressure to be 15-20MPa to prepare prefabricated art paper, and drying the prefabricated art paper at 65-80 ℃ to prepare the corrosion-resistant art paper.
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