CN109577095B - Gas phase antirust paper suitable for high-humidity environment and preparation method thereof - Google Patents

Gas phase antirust paper suitable for high-humidity environment and preparation method thereof Download PDF

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Publication number
CN109577095B
CN109577095B CN201811442612.0A CN201811442612A CN109577095B CN 109577095 B CN109577095 B CN 109577095B CN 201811442612 A CN201811442612 A CN 201811442612A CN 109577095 B CN109577095 B CN 109577095B
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layer
gas
humidity environment
paper
antirust
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CN109577095A (en
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马开宇
朱韶东
王战军
崔晓风
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Hebei Yuda Anti Rust Technology Co ltd
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Hebei Yuda Anti Rust Technology Co ltd
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    • 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
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/18—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising waxes
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/30—Polyamides; Polyimides
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/824—Paper comprising more than one coating superposed two superposed coatings, both being non-pigmented
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • 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
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting

Abstract

The utility model provides a gas phase anti-rust paper that is fit for high humid environment and preparation method thereof, belongs to the anti-rust film field, and the technical problem that among the prior art anti-rust packaging film blocked steam is very poor, and tensile strength is low, can not adapt to high humid environment is solved to anti-rust paper from last to including in proper order down: the gas phase antirust layer is a film formed by spraying a compound antirust agent; a first moisture-absorbing layer of C having a fiber volume of 30-40%3DA nylon resin film; base paper; a wax layer which is a transparent wax layer; a second hygroscopic layer of C having a fiber volume of 30-40%3DA nylon resin film; the heat insulation layer is a nano tin antimony oxide/polyurethane composite film; a photocatalytic layer of Sr doping coated on the lower surface of the second wax layer2+The nano titanium dioxide film. The gas-phase antirust paper is mainly used in high-temperature and high-humidity environments, and has the advantage of long service life.

Description

Gas phase antirust paper suitable for high-humidity environment and preparation method thereof
Technical Field
The present invention relates generally to the field of rust inhibitive films, and in particular, to a gas phase rust inhibitive paper suitable for high humidity environments and a method for preparing the same.
Background
Metal objects are easily rusted in the atmosphere, if no measures are taken, the rusting becomes more and more serious, the appearance is damaged, and the performance of the metal objects is greatly reduced along with the strength of the rusting. Therefore, sealing metal objects together to prevent corrosion is an important rust prevention method. For a long time, the gas phase rust-proof paper is widely used as an important rust-proof wrapping material, and a gas phase rust-proof agent is generally coated on the base paper, for example, the utility model patent 'toughness gas phase rust-proof' with Chinese number 92216358 invented a kind of rust-proof paper, kraft paper is used as the base paper, a layer of gas phase corrosion inhibitor is coated on the base paper, the gas phase corrosion inhibitor is automatically volatilized to the metal surface, and a protective layer is formed on the metal surface, so that the effect of inhibiting metal corrosion is achieved, and the gas phase rust-proof paper has very important significance for the metal processing industry.
The existing gas-phase antirust paper has poor performance of blocking water vapor and low tensile strength due to the structure and the characteristics of the material, and cannot adapt to a high-humidity environment.
Therefore, how to provide a gas phase antirust paper suitable for high humidity environment is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention provides a gas phase antirust paper suitable for a high-humidity environment, wherein the gas phase antirust paper sequentially comprises the following components from top to bottom: the gas phase antirust layer is a film formed by spraying a compound antirust agent; a first moisture-absorbing layer of C having a fiber volume of 30-40%3DA nylon resin film; the base paper; a wax layer which is a transparent wax layer; a second hygroscopic layer of C having a fiber volume of 30-40%3DA nylon resin film; the heat insulation layer is a nano tin antimony oxide/polyurethane composite film; the photocatalytic layer is doped Sr coated on the lower surface of the heat insulation layer2+The nano titanium dioxide film.
In some embodiments, in the gas phase antirust paper suitable for high humidity environment, the gas phase antirust layer is uniformly provided with a microporous structure, and the pore diameter of the microporous structure is 1mm-4 mm.
In some embodiments, in the gas-phase antirust paper suitable for high-humidity environment, the compound antirust agent comprises cyclohexylamine carbonate, benzotriazole and tert-butyl chromate in a mass ratio of 1/1-1.6/2-4.
In some embodiments, in the gas-phase antirust paper suitable for a high-humidity environment, the photocatalytic layer contains 92 to 97 parts by mass of nano titanium dioxide and 1 to 3 parts by mass of strontium.
In some embodiments, in the gas phase antirust paper suitable for a high humidity environment, the photocatalytic layer further contains 1 to 5 parts by mass of aluminum.
In some embodiments, in the gas-phase antirust paper suitable for high-humidity environment, the mass ratio of the nano tin antimony oxide to the polyurethane in the heat insulation layer is 1/1-5.
In some embodiments, the ratio of methylene/amide groups in the nylon resin in the first moisture-absorbing layer and the second moisture-absorbing layer is 4 to 6/1 in the vapor phase antirust paper suitable for a high-humidity environment.
In some embodiments, in the gas-phase antirust paper suitable for high-humidity environment, the nylon resin is nano hydroxyapatite modified polyamide.
In some embodiments, in the gas phase antirust paper suitable for high humidity environment, the heat insulating layer is 1 to 3 layers.
In another aspect, the present invention further provides a method for preparing a gas phase antirust paper suitable for a high humidity environment, wherein:
step one, completely dissolving nylon resin in ethanol at 70-80 ℃, and adding C3DPouring the mixture into an ethanol solution of nylon resin, fully stirring for 2 hours, pouring the mixture into an inert container after the mixture is stable, and coating the mixture on the upper surface of the base paper to obtain a first moisture absorption layer;
secondly, paving particles with the particle size of 1mm-4mm on the moisture absorption layer, wherein the distance between every two adjacent particles is 3-10 mm;
mixing the compound antirust agent for preparing the gas-phase antirust layer, the carrier plastic and the dispersing lubricant, stirring for 10-30min at the rotating speed of 1000r/min of 800-;
spraying a transparent wax layer with the thickness of 0.5mm-2mm on the lower surface of the base paper to obtain a wax layer;
coating the mixed liquid prepared in the first step on the lower surface of the wax layer to obtain a second moisture absorption layer;
step six, adding the uniformly dispersed nano tin antimony oxide into the waterborne polyurethane emulsion, stirring for 10-30min at the rotating speed of 600-800r/min, and coating the nano tin antimony oxide on the lower surface of the second moisture absorption layer to obtain a heat insulation layer;
step seven, combining a high-pressure spray gun with an air compressor, and mixing the strontium-doped nano TiO2Pouring the colorless transparent hydrosol into a spray pot of a high-pressure spray gun, spraying the thermal insulation layer by the high-pressure spray gun at the moving speed of 30cm/s, and airing at room temperature to obtain the photocatalytic layer.
Has the advantages that:
in the gas-phase antirust paper suitable for the high-humidity environment, when the gas-phase antirust paper is used, the gas-phase antirust layer is arranged towards metal equipment, the first moisture absorption layer absorbs moisture in a space between the gas-phase antirust paper and the metal equipment through a microporous structure of the gas-phase antirust layer to ensure that the space is in a dry environment, and meanwhile, the gas-phase antirust agent is released to the metal equipment through the gas-phase antirust layer, so that the dry environment and the gas-phase antirust agent play a double guarantee role in the metal equipment, and the metal equipment is prevented from rusting. Meanwhile, a photocatalytic layer, a thermal insulation layer, a second moisture absorption layer and a wax layer are sequentially arranged on the other surface of the base paper from outside to inside, the photocatalytic layer is directly contacted with the external high-temperature environment, nano titanium dioxide in the photocatalytic layer can absorb light radiation, the sunlight directly acting on the gas-phase anti-rust paper is consumed, the temperature of the action and the temperature of the gas-phase anti-rust paper are reduced, then the thermal insulation layer further isolates the temperature of the photocatalytic layer which is not isolated, the second moisture absorption layer absorbs external moisture entering the gas-phase anti-rust paper, and finally the base paper is isolated from the external temperature and the external humidity by the wax layer.
Drawings
FIG. 1 is a schematic structural view of a vapor-phase rust inhibitive paper suitable for a high humidity environment according to one embodiment of the present invention;
FIG. 2 is a schematic view showing the micropore structure of a gas phase rust preventive layer in a gas phase rust preventive paper suitable for a high-humidity environment according to one embodiment of the present invention;
fig. 3 is a flow chart of a method for producing a gas phase rust preventive paper suitable for a high humidity environment according to one embodiment of the present invention.
Description of the reference numerals
1 represents a gas phase rust-proof layer, 2 represents a first moisture absorption layer, 3 represents base paper, 4 represents a wax layer, 5 represents a second moisture absorption layer, 6 represents a heat insulation layer, and 7 represents a photocatalytic layer.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
In the present invention, "parts by mass" or "%" are by mass unless otherwise specified.
As shown in fig. 1 and fig. 2, the gas phase antirust paper suitable for high humidity environment according to the present invention comprises, from top to bottom:
the gas phase antirust layer 1 is a film formed by spraying a compound antirust agent;
a first moisture-absorbing layer 2 of C having a fiber volume of 30 to 40%3DA nylon resin film;
the base paper 3;
a wax layer 4 which is a transparent wax layer;
a second moisture absorption layer 5 containing 30-40% by volume of fiber C3DA nylon resin film;
the heat insulation layer 6 is a nano tin antimony oxide/polyurethane composite film;
a photo-catalytic layer 7 which is doped Sr coated on the lower surface of the heat insulation layer 62+The nano titanium dioxide film.
After the gas-phase anti-rust paper cover is arranged on the surface of the instrument and equipment, when the gas-phase anti-rust paper cover is transported, parked or placed in a sunlight irradiation area, when sunlight irradiates on the photocatalyst layer 7 at the uppermost layer, nano titanium dioxide in the photocatalyst layer 7 can absorb light radiation and consume the sunlight directly acting on the gas-phase anti-rust paper, the photocatalyst layer 7 containing the nano titanium dioxide can inhibit bacteria and the like to damage the gas-phase anti-rust paper, and the service life of the gas-phase anti-rust paper is prolonged; doping Sr in nano titanium white2+Sr is2+Coated outside the nano titanium dioxide particles due to Sr2+The ionic radius (0.112nm) is more than or equal to Ti4+Has an ionic radius of 0.068nm, is doped with Sr ions, and has a portion of Sr not forming Sr-O bonds2+Incorporation of nano TiO2SubstitutionTi4+The microstructure of the photocatalyst is changed, so that photo-generated carriers are increased in the photocatalysis process, the photosensitivity of the photocatalyst layer 7 is improved, the mildew-proof and bacteriostatic ability of the photocatalyst layer 7 is improved, the service life of the gas-phase antirust paper is prolonged, meanwhile, the nano titanium dioxide material has high absorptivity to infrared rays and electromagnetic waves, and the photocatalyst layer 7 taking the nano titanium dioxide as a main component can effectively weaken reflected signals received by a radar and an infrared detector, so that the photocatalyst can be applied to the field of national defense with special requirements; the heat insulation layer 6 is used for further isolating the external temperature, meanwhile, in the photocatalytic layer 7 and the heat insulation layer 6, the mass ratio of the nano tin antimony oxide to the nano titanium dioxide is 5-8/1, the transmittances of visible light, ultraviolet light and infrared light of the gas-phase antirust paper are 35-45%, 45-50% and 50-64%, respectively, and the gas-phase antirust paper has excellent heat insulation performance; the second moisture absorption layer 5 is used for removing moisture entering the interior of the gas phase antirust paper from the external high humidity environment and isolating the external moisture under the action of the wax layer 4. The surface of the gas-phase antirust paper facing to the metal equipment is provided with a gas-phase antirust layer 1 with a microporous structure, the gas-phase antirust layer 1 releases a compound antirust agent to the metal equipment, and the metal equipment is protected by the antirust agent; as shown in fig. 2, the pore diameter of the microporous structure on the gas phase rust-preventive layer 1 is 1mm-4mm, and the distance between adjacent micropores is 3mm-10mm, the first moisture absorption layer 2 absorbs moisture between the gas phase rust-preventive paper and the metal equipment through the microporous structure of the gas phase rust-preventive layer 1, so as to reduce the moisture concentration between the metal equipment and the gas phase rust-preventive paper, the moisture condition is a key factor directly determining that electrochemical corrosion can occur on the metal surface, the humidity in the atmosphere provides condensed water, a thin liquid film is formed on the electrode surface, and conditions are provided for electrochemical corrosion.
In some embodiments, in the gas-phase antirust paper suitable for high-humidity environment, the compound antirust agent comprises cyclohexylamine carbonate, benzotriazole and tert-butyl chromate in a mass ratio of 1/1-1.6/2-4. For example, the compound antirust agent comprises 1/1/2 mass ratio of cyclohexylamine carbonate, benzotriazole and tert-butyl chromate, the compound antirust agent comprises 1/1.6/4 mass ratio of cyclohexylamine carbonate, benzotriazole and tert-butyl chromate, or the compound antirust agent comprises 1/1.3/3 mass ratio of cyclohexylamine carbonate, benzotriazole and tert-butyl chromate.
In some embodiments, in the gas-phase antirust paper suitable for a high-humidity environment, the photocatalytic layer 7 contains 92 to 97 parts by mass of nano titanium dioxide and 1 to 3 parts by mass of strontium. In the mixture of strontium and nano titanium dioxide, the strontium doping amount is 1% -3%, the doping amount is the optimal doping amount, the doping of strontium ions is equivalent to adding the following electron acceptor, the recombination of electron-hole pairs is delayed, the photosensitive performance can be improved, the photocatalytic performance of the photocatalytic layer 7 can be improved, when the strontium doping amount is lower than 1%, the number of shallow potential wells for capturing electrons or holes is insufficient, the photoproduction electron-hole pairs are not effectively separated, when the strontium doping amount is higher than 3%, a new phase can be formed by doping, and the new phase becomes a recombination center of the electron-hole pairs, and the photocatalytic performance is reduced.
In some embodiments, in the gas phase antirust paper suitable for a high humidity environment, the photocatalytic layer 7 further contains 1 to 5 parts by mass of aluminum. The aluminum powder is uniformly distributed in the photocatalytic layer 77, and sunlight is reflected by the aluminum powder, so that the gas-phase anti-rust paper is prevented from being damaged by sunlight irradiation, and the service life of the gas-phase anti-rust paper is prolonged.
In some embodiments, in the gas phase antirust paper suitable for high humidity environment, the mass ratio of the nano tin antimony oxide to the polyurethane in the heat insulating layer 6 is 1/1-5. Preferably, the mass ratio of the nano tin antimony oxide to the polyurethane is 1/1-4, more preferably, the mass ratio of the nano tin antimony oxide to the polyurethane is 1/1-3, for example, the mass ratio of the nano tin antimony oxide to the polyurethane is 1/1, 1/2 or 1/3.
In some embodiments, the ratio of methylene/amide groups in the nylon resin in the first moisture-absorbing layer 2 and the second moisture-absorbing layer 5 is 4 to 6/1 in the vapor phase antirust paper suitable for a high-humidity environment. Preferably, the ratio of methylene/amide groups in the nylon resin in the first moisture-absorbing layer 2 and the second moisture-absorbing layer 5 is 4 to 5/1, for example, the ratio of methylene/amide groups in the nylon resin in the first moisture-absorbing layer 2 and the second moisture-absorbing layer 5 is 4/1 or 5/1. When the ratio of methylene to amide in the nylon resin is 4-6/1, the moisture absorption layer has a low thermal expansion coefficient, and the gas phase antirust paper does not deform after being used in a high-temperature environment for a long time, so that the service life is prolonged.
In some embodiments, in the gas-phase antirust paper suitable for high-humidity environment, the nylon resin is nano hydroxyapatite modified polyamide. The nano hydroxyapatite modified polyamide improves the hydroxyl content in the nylon resin, and improves the moisture absorption performance of the moisture absorption layer by utilizing the ability of the hydroxyl and the amide in the nylon resin to absorb water.
In some embodiments, in the gas phase antirust paper suitable for high humidity environment, the heat insulating layer 6 is 1 to 3 layers.
In another aspect, the present invention provides a method for preparing a gas-phase antirust paper, which comprises:
step one, completely dissolving nylon resin in ethanol at 70-80 ℃, and adding C3DPouring the mixture into an ethanol solution of nylon resin, fully stirring for 2 hours, pouring the mixture into an inert container after the mixture is stable, and coating the mixture on the upper surface of the base paper to obtain a first moisture absorption layer;
secondly, paving particles with the particle size of 1mm-4mm on the moisture absorption layer, wherein the distance between every two adjacent particles is 3mm-10 mm;
mixing the compound antirust agent for preparing the gas-phase antirust layer, the carrier plastic and the dispersing lubricant, stirring for 10-30min at the rotating speed of 1000r/min of 800-;
spraying a transparent wax layer with the thickness of 0.5mm-2mm on the lower surface of the base paper to obtain a wax layer;
coating the mixed liquid prepared in the first step on the lower surface of the wax layer to obtain a second moisture absorption layer;
step six, adding the uniformly dispersed nano tin antimony oxide into the waterborne polyurethane emulsion, stirring for 10-30min at the rotating speed of 600-800r/min, and coating the nano tin antimony oxide on the lower surface of the second moisture absorption layer to obtain a heat insulation layer;
step seven, high pressure is appliedThe spray gun is combined with an air compressor to mix the strontium-doped nano TiO2Pouring the colorless transparent hydrosol into a spray pot of a high-pressure spray gun, spraying the thermal insulation layer by the high-pressure spray gun at the moving speed of 30cm/s, and airing at room temperature to obtain the thermal insulation coating.
The rust-proof performance of the invention is tested by the industry standard QB 1319-1991 gas phase rust-proof paper.
The mildew-proof bacteriostatic property is characterized in that the gas-phase antirust paper is placed indoors, doors and windows of the rooms are opened, and after 2 months, conditions of escherichia coli, staphylococcus aureus and mildew on the wall surface and the mildew area (the mildew area occupies the coating area of the coating) are tested.
Examples
Example 1
A gas phase antirust paper suitable for high humidity environment, which comprises from top to bottom in sequence:
the gas phase antirust layer is a film formed by spraying a compound antirust agent; the gas phase anti-rust layer is uniformly provided with a microporous structure, and the pore diameter of the microporous structure is 1 mm;
a first moisture-absorbing layer of 30% by volume of fibers C3DA nylon resin film; the nylon resin is nano hydroxyapatite modified polyamide
The base paper;
a wax layer which is a transparent wax layer;
a second moisture-absorbing layer of C having a fiber volume of 40%3DA nylon resin film;
a heat insulation layer which is a nano tin antimony oxide/polyurethane composite film;
a photocatalytic layer of Sr doping coated on the lower surface of the second wax layer2+The nano titanium dioxide film.
In the scheme, the compound antirust agent comprises 1/1/2 mass ratio of cyclohexylamine carbonate, benzotriazole and tert-butyl chromate.
In the above scheme, the photocatalytic layer contains 92 parts by mass of nano titanium dioxide, 1 part by mass of strontium, and 1 part by mass of aluminum.
In the above scheme, the mass ratio of the nano tin antimony oxide to the polyurethane in the thermal insulation layer is 1/1.
In the above embodiment, the ratio of methylene/amide groups in the nylon resin in the first and second moisture-absorbing layers is 4/1.
The preparation method comprises the following steps:
step one, completely dissolving nylon resin in ethanol at 70-80 ℃, and adding C3DPouring the mixture into an ethanol solution of nylon resin, fully stirring for 2 hours, pouring the mixture into an inert container after the mixture is stable, and coating the mixture on the upper surface of the base paper to obtain a first moisture absorption layer;
secondly, paving particles with the particle size of 1mm on the moisture absorption layer, wherein the distance between every two adjacent particles is 3-10 mm;
mixing the compound antirust agent for preparing the gas-phase antirust layer, the carrier plastic and the dispersing lubricant, stirring for 10-30min at the rotating speed of 1000r/min of 800-;
spraying a transparent wax layer with the thickness of 0.5mm on the lower surface of the base paper to obtain a wax layer;
coating the mixed liquid prepared in the first step on the lower surface of the wax layer to obtain a second moisture absorption layer;
step six, adding the uniformly dispersed nano tin antimony oxide into the waterborne polyurethane emulsion, stirring for 10-30min at the rotating speed of 600-800r/min, and coating the nano tin antimony oxide on the lower surface of the second moisture absorption layer to obtain a heat insulation layer;
step seven, combining a high-pressure spray gun with an air compressor, and mixing the strontium-doped nano TiO2Pouring the colorless transparent hydrosol into a spray pot of a high-pressure spray gun, spraying the thermal insulation layer by the high-pressure spray gun at the moving speed of 30cm/s, and airing at room temperature to obtain the photocatalytic layer.
Example 2
A gas phase antirust paper suitable for high humidity environment, which comprises from top to bottom in sequence:
the gas phase antirust layer is a film formed by spraying a compound antirust agent; the gas phase anti-rust layer is uniformly provided with a microporous structure, and the pore diameter of the microporous structure is 4 mm;
a first moisture-absorbing layer of 40% by volume of fibers C3DA nylon resin film; the nylon resin is nano hydroxyapatite modified polyamide
The base paper;
a wax layer which is a transparent wax layer;
a second moisture-absorbing layer of 30% by volume of fibers C3DA nylon resin film;
the heat insulation layer is a nano tin antimony oxide/polyurethane composite film; the heat insulation layer is two layers
A photocatalytic layer of Sr doping coated on the lower surface of the second wax layer2+The nano titanium dioxide film.
In the scheme, the compound antirust agent comprises cyclohexylamine carbonate, benzotriazole and tert-butyl chromate in a mass ratio of 1/1.6/4.
In the above scheme, the photocatalytic layer includes 97 parts by mass of nano titanium dioxide, 3 parts by mass of strontium, and 5 parts by mass of aluminum.
In the above scheme, the mass ratio of the nano tin antimony oxide to the polyurethane in the thermal insulation layer is 1/5.
In the above embodiment, the ratio of methylene/amide groups in the nylon resin in the first and second moisture-absorbing layers is 6/1.
The preparation method comprises the following steps:
step one, completely dissolving nylon resin in ethanol at 70-80 ℃, and adding C3DPouring the mixture into an ethanol solution of nylon resin, fully stirring for 2 hours, pouring the mixture into an inert container after the mixture is stable, and coating the mixture on the upper surface of the base paper to obtain a first moisture absorption layer;
secondly, paving particles with the particle size of 4mm on the moisture absorption layer, wherein the distance between every two adjacent particles is 5 mm;
mixing the compound antirust agent for preparing the gas-phase antirust layer, the carrier plastic and the dispersing lubricant, stirring for 10-30min at the rotating speed of 1000r/min of 800-;
step four, spraying a transparent wax layer with the thickness of 2mm on the lower surface of the base paper to obtain a wax layer;
coating the mixed liquid prepared in the first step on the lower surface of the wax layer to obtain a second moisture absorption layer;
step six, adding the uniformly dispersed nano tin antimony oxide into the waterborne polyurethane emulsion, stirring for 10-30min at the rotating speed of 600-800r/min, and coating the nano tin antimony oxide on the lower surface of the second moisture absorption layer to obtain a heat insulation layer;
step seven, combining a high-pressure spray gun with an air compressor, and mixing the strontium-doped nano TiO2Pouring the colorless transparent hydrosol into a spray pot of a high-pressure spray gun, spraying the thermal insulation layer by the high-pressure spray gun at the moving speed of 30cm/s, and airing at room temperature to obtain the photocatalytic layer.
Example 3
A gas phase antirust paper suitable for high humidity environment, which comprises from top to bottom in sequence:
the gas phase antirust layer is a film formed by spraying a compound antirust agent; the gas phase anti-rust layer is uniformly provided with a microporous structure, and the pore diameter of the microporous structure is 2 mm;
a first moisture-absorbing layer of 35% by volume of fibers C3DA nylon resin film; the nylon resin is nano hydroxyapatite modified polyamide
The base paper;
a wax layer which is a transparent wax layer;
a second moisture-absorbing layer of C having a fiber volume of 35%3DA nylon resin film;
the heat insulation layer is a nano tin antimony oxide/polyurethane composite film; the heat insulation layer is three layers
A photocatalytic layer of Sr doping coated on the lower surface of the second wax layer2+The nano titanium dioxide film.
In the scheme, the compound antirust agent comprises cyclohexylamine carbonate, benzotriazole and tert-butyl chromate in a mass ratio of 1/1.3/2.5.
In the above scheme, the photocatalytic layer contains 95 parts by mass of nano titanium dioxide, 2 parts by mass of strontium, and 3 parts by mass of aluminum.
In the above scheme, the mass ratio of the nano tin antimony oxide to the polyurethane in the thermal insulation layer is 1/3.
In the above embodiment, the ratio of methylene/amide groups in the nylon resin in the first and second moisture-absorbing layers is 5/1.
The preparation method comprises the following steps:
step one, completely dissolving nylon resin in ethanol at 70-80 ℃, and adding C3DPouring the mixture into an ethanol solution of nylon resin, fully stirring for 2 hours, pouring the mixture into an inert container after the mixture is stable, and coating the mixture on the upper surface of the base paper to obtain a first moisture absorption layer;
secondly, laying particles with the particle size of 2mm on the moisture absorption layer, wherein the distance between every two adjacent particles is 7 mm;
mixing the compound antirust agent for preparing the gas-phase antirust layer, the carrier plastic and the dispersing lubricant, stirring for 10-30min at the rotating speed of 1000r/min of 800-;
step four, spraying a transparent wax layer with the thickness of 1.5mm on the lower surface of the base paper to obtain a wax layer;
coating the mixed liquid prepared in the first step on the lower surface of the wax layer to obtain a second moisture absorption layer;
step six, adding the uniformly dispersed nano tin antimony oxide into the waterborne polyurethane emulsion, stirring for 10-30min at the rotating speed of 600-800r/min, and coating the nano tin antimony oxide on the lower surface of the second moisture absorption layer to obtain a heat insulation layer;
step seven, combining a high-pressure spray gun with an air compressor, and mixing the strontium-doped nano TiO2Pouring the colorless transparent hydrosol into a spray pot of a high-pressure spray gun, spraying the thermal insulation layer by the high-pressure spray gun at the moving speed of 30cm/s, and airing at room temperature to obtain the photocatalytic layer.
Comparative example 1
A gas phase antirust paper comprises base paper, one side of the base paper is coated with a gas phase corrosion inhibitor layer; the other side is compounded with a layer of PE film, and a layer of high-barrier plastic film is compounded on the PE film.
The test results of the gas phase anti-tarnish papers prepared in examples 1-3 and comparative example 1 are shown in table 1, and it can be seen that the gas phase anti-tarnish papers according to the present invention have the advantages of better high temperature resistance and humidity resistance, and the gas phase anti-tarnish papers according to the present invention have good anti-mildew and anti-bacteria properties, so as to prevent the gas phase anti-tarnish papers from being damaged by microorganisms, and prolong the service life of the gas phase anti-tarnish papers.
TABLE 1
Figure BDA0001885036090000141
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.

Claims (10)

1. A gas phase antirust paper suitable for high humidity environment, wherein the gas phase antirust paper comprises the following components in sequence from top to bottom:
the gas-phase antirust layer (1) is a film formed by spraying a compound antirust agent;
a first moisture-absorbing layer (2) of C having a fiber volume of 30-40%3DNylonA resin film;
a base paper (3);
a wax layer (4) which is a transparent wax layer;
a second hygroscopic layer (5) of C with a fiber volume of 30-40%3DA nylon resin film;
the heat insulation layer (6) is a nano tin antimony oxide/polyurethane composite film;
a photo-catalytic layer (7) which is doped Sr and coated on the lower surface of the heat insulation layer (6)2+The nano titanium dioxide film.
2. The gas phase antirust paper suitable for high humidity environment according to claim 1, wherein the gas phase antirust layer (1) is uniformly provided with a microporous structure, and the pore diameter of the microporous structure is 1mm-4 mm.
3. The gas-phase antirust paper suitable for high-humidity environment according to claim 1, wherein the compound antirust agent comprises cyclohexylamine carbonate, benzotriazole and tert-butyl chromate in a mass ratio of 1/1-1.6/2-4.
4. The gas-phase antirust paper suitable for a high-humidity environment according to claim 1, wherein the photocatalytic layer (7) contains 92 to 97 parts by mass of nano titanium white and 1 to 3 parts by mass of strontium.
5. The gas-phase antirust paper suitable for a high-humidity environment according to claim 4, wherein the photocatalytic layer (7) further contains 1 to 5 parts by mass of aluminum.
6. The gas-phase antirust paper suitable for high-humidity environment according to claim 1, wherein the mass ratio of the nano tin antimony oxide to the polyurethane in the heat insulating layer (6) is 1/1-5.
7. The vapor-phase rust inhibitive paper suitable for a high humidity environment according to claim 1, wherein the ratio of methylene/amide groups in the nylon resin in said first moisture absorption layer (2) and said second moisture absorption layer (5) is from 4 to 6/1.
8. The gas-phase antirust paper suitable for high-humidity environment according to claim 1, wherein the nylon resin is nano hydroxyapatite modified polyamide.
9. The gas-phase antirust paper suitable for high-humidity environment according to claim 1, wherein the heat-insulating layer (6) is 1 to 3 layers.
10. A method for producing a vapor-phase rust inhibitive paper suitable for a high humidity environment according to any one of claims 1 to 9, wherein:
step one, completely dissolving nylon resin in ethanol at 70-80 ℃, and adding C3DPouring the mixture into an ethanol solution of nylon resin, fully stirring for 2 hours, pouring the mixture into an inert container after the mixture is stable, and coating the mixture on the upper surface of the base paper to obtain a first moisture absorption layer;
secondly, paving particles with the particle size of 1mm-4mm on the moisture absorption layer, wherein the distance between every two adjacent particles is 3-10 mm;
mixing the compound antirust agent for preparing the gas-phase antirust layer, the carrier plastic and the dispersing lubricant, stirring for 10-30min at the rotating speed of 1000r/min of 800-;
spraying a transparent wax layer with the thickness of 0.5mm-2mm on the lower surface of the base paper to obtain a wax layer;
coating the mixed liquid prepared in the first step on the lower surface of the wax layer to obtain a second moisture absorption layer;
step six, adding the uniformly dispersed nano tin antimony oxide into the waterborne polyurethane emulsion, stirring for 10-30min at the rotating speed of 600-800r/min, and coating the nano tin antimony oxide on the lower surface of the second moisture absorption layer to obtain a heat insulation layer;
step seven, combining a high-pressure spray gun with an air compressor, and mixing the strontium-doped nano TiO2Pouring the colorless transparent hydrosol into a spray can of a high-pressure spray gun,the high-pressure spray gun sprays the heat insulation layer at the moving speed of 30cm/s, and the photocatalytic layer is obtained by airing at room temperature.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2389909Y (en) * 1999-08-25 2000-08-02 沈阳防锈包装材料公司 High barrier gas phase rustproof paper
CN1327878A (en) * 2001-05-31 2001-12-26 中国兵器工业第五二研究所宁波分所 Process for preparing visual light reaction type nm TiO2-base optical catalyst
CN2502898Y (en) * 2001-04-13 2002-07-31 常州永光防锈材料有限公司 Strenthening gas-phase antirust paper
CN101323956A (en) * 2007-06-14 2008-12-17 熊小勇 Composite gas-phase anti-rust master batch and preparing process thereof
CN104017474A (en) * 2014-05-12 2014-09-03 南昌大学 Nano ATO (tin antimony oxide)/TiO2 filler waterborne polyurethane heat-insulation clear paint
CN104985891A (en) * 2013-11-14 2015-10-21 德邦新材料有限公司 Coating material with characteristics of efficiency, energy saving, heat shield, cooling and corrosion resistance

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2389909Y (en) * 1999-08-25 2000-08-02 沈阳防锈包装材料公司 High barrier gas phase rustproof paper
CN2502898Y (en) * 2001-04-13 2002-07-31 常州永光防锈材料有限公司 Strenthening gas-phase antirust paper
CN1327878A (en) * 2001-05-31 2001-12-26 中国兵器工业第五二研究所宁波分所 Process for preparing visual light reaction type nm TiO2-base optical catalyst
CN101323956A (en) * 2007-06-14 2008-12-17 熊小勇 Composite gas-phase anti-rust master batch and preparing process thereof
CN104985891A (en) * 2013-11-14 2015-10-21 德邦新材料有限公司 Coating material with characteristics of efficiency, energy saving, heat shield, cooling and corrosion resistance
CN104017474A (en) * 2014-05-12 2014-09-03 南昌大学 Nano ATO (tin antimony oxide)/TiO2 filler waterborne polyurethane heat-insulation clear paint

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