CN112851991A - Diaphragm and preparation method and application thereof - Google Patents

Diaphragm and preparation method and application thereof Download PDF

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Publication number
CN112851991A
CN112851991A CN202110023964.8A CN202110023964A CN112851991A CN 112851991 A CN112851991 A CN 112851991A CN 202110023964 A CN202110023964 A CN 202110023964A CN 112851991 A CN112851991 A CN 112851991A
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Prior art keywords
manganese oxide
adhesive
manganese
diaphragm
formaldehyde
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杨开福
刘科
李正林
陈朝晖
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Jiangsu Housheng New Energy Technology Co Ltd
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Jiangsu Housheng New Energy Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B01D53/82—Solid phase processes with stationary reactants
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08J2409/06—Copolymers with styrene
    • C08J2409/08—Latex
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

The invention provides a preparation method of a diaphragm, which comprises the following steps: mixing manganese oxide, an anti-settling agent, an adhesive, water, an adhesive and a wetting agent to obtain slurry; and coating the slurry on the surface of a base material to obtain the diaphragm. The manganese oxide has excellent oxidation performance on formaldehyde, and can be efficiently catalytically decomposed under the condition of normal temperature environment; the manganese dioxide nano powder can adsorb a plurality of water molecules at normal temperature, and can effectively degrade formaldehyde; the preparation of the existing porous membrane is relatively mature, and comprises dry-method single-pulling and double-pulling, wet-method single-pulling and double-pulling, and the selection cost of the base material is low and the application is easy; the coating technology is mature, and the manganese dioxide slurry can be uniformly and flatly coated on the base material; the diaphragm coated with the manganese oxide can be directly pasted as wallpaper, is attractive and can degrade formaldehyde; compared with noble metal catalysts, the manganese oxide has rich resources and low cost. The invention also provides a diaphragm and application.

Description

Diaphragm and preparation method and application thereof
Technical Field
The invention belongs to the technical field of formaldehyde removal, and particularly relates to a diaphragm and a preparation method and application thereof.
Background
Formaldehyde (HCHO) is one of the main indoor pollutants, and is mainly derived from artificial boards such as plywood, blockboard, medium density fiberboard and particle board for indoor decoration. The formaldehyde is one of carcinogens recognized by the world health organization, the harm to the health of people is great when the formaldehyde is exposed in a high-concentration formaldehyde environment for a long time, and the indoor formaldehyde is difficult to remove and low in removing capacity all the time.
The existing indoor formaldehyde removal method comprises a physical adsorption method, a chemical reaction method, a photocatalyst and the like, wherein the physical adsorption method is used for adsorbing formaldehyde, but the formaldehyde cannot be decomposed and can be adsorbed, but the formaldehyde is trace, the amount of water is small, and the water-soluble organic formaldehyde removal method has no effect on the whole space; the formaldehyde is treated by a chemical reaction method, the formaldehyde per se has chemical reaction, a plurality of byproducts are generated, and most of people need to leave a room; the photocatalyst needs ultraviolet irradiation and ozone generation, is basically ineffective under natural light and needs to be used in an unmanned state.
Therefore, how to conveniently and effectively remove indoor formaldehyde becomes a focus of attention of those in the art.
Disclosure of Invention
In view of this, the present invention provides a separator, a method for preparing the same, and an application of the same, wherein the separator prepared by the method provided by the present invention can effectively remove formaldehyde.
The invention provides a preparation method of a diaphragm, which comprises the following steps:
mixing manganese oxide, an anti-settling agent, an adhesive, water, an adhesive and a wetting agent to obtain slurry;
and coating the slurry on the surface of a base material to obtain the diaphragm.
Preferably, the manganese oxide is manganese oxide powder;
the particle size of the manganese oxide powder is 5-10 nm.
Preferably, the manganese oxide is selected from one of manganese dioxide, manganese monoxide, manganese sesquioxide, manganomanganic oxide, manganous anhydride and manganic anhydride.
Preferably, the anti-settling agent is selected from sodium carboxymethyl cellulose.
Preferably, the adhesive is selected from one or more of styrene-butadiene latex, cinnamic acid, polyacrylamide, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene oxide, modified paraffin resin, carbomer resin, polyacrylic acid, polyurethane acrylate, polyacrylate copolymer emulsion, polyurethane and carbamate.
Preferably, the adhesive is an acrylic-type adhesive.
Preferably, the wetting agent is selected from one or more of organosilicon ether surfactants, anionic surfactants and nonionic surfactants.
Preferably, the anionic surfactant is selected from sodium alkylaryl sulfonate, sodium butylnaphthalene sulfonate, sodium hydroxyethyl sulfonate or sodium dodecyl sulfonate;
the nonionic surfactant is selected from long-chain fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylate, polyoxyethylene alkylolamide or fatty alcohol-polyoxyethylene ether.
The invention provides a diaphragm prepared by the method in the technical scheme.
The invention provides application of the diaphragm in the technical scheme in the field of formaldehyde removal.
According to the invention, the nanometer-level (5-10 nm) manganese oxide is attached and accumulated on the pore channel and the surface of the polyolefin porous membrane, so that the contact area of the manganese oxide and formaldehyde is increased, and the degradation of the formaldehyde is accelerated; the formaldehyde removal rate of 50-60% can be achieved by adopting the nanoscale manganese oxide at normal temperature. The manganese oxide has excellent oxidation performance on formaldehyde, and can be efficiently catalytically decomposed under the condition of normal temperature environment; the manganese dioxide nano powder can adsorb a plurality of water molecules at normal temperature, and can effectively degrade formaldehyde; the preparation of the existing porous membrane is relatively mature, and comprises dry-method single-pulling and double-pulling, wet-method single-pulling and double-pulling, and the selection cost of the base material is low and the application is easy; the coating technology is mature, and the manganese dioxide slurry can be uniformly and flatly coated on the base material; the diaphragm coated with the manganese oxide can be directly pasted as wallpaper, is attractive and can degrade formaldehyde; compared with noble metal catalysts, the manganese oxide has rich resources and low cost.
Drawings
Fig. 1 is a process flow diagram for preparing a separator according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other examples, which may be modified or appreciated by those of ordinary skill in the art based on the examples given herein, are intended to be within the scope of the present invention. It should be understood that the embodiments of the present invention are only for illustrating the technical effects of the present invention, and are not intended to limit the scope of the present invention. In the examples, the methods used were all conventional methods unless otherwise specified.
The process flow for preparing the diaphragm in the embodiment of the invention is shown in fig. 1, and the invention provides a preparation method of the diaphragm, which comprises the following steps:
mixing manganese oxide, an anti-settling agent, an adhesive, water, an adhesive and a wetting agent to obtain slurry;
and coating the slurry on the surface of a base material to obtain the diaphragm.
In the present invention, the preparation method of the slurry preferably includes:
mixing manganese oxide, an anti-settling agent, an adhesive and water to obtain a mixture;
and mixing the mixture with a binder and a wetting agent to obtain slurry.
In the present invention, the method of mixing the manganese oxide, the anti-settling agent, the adhesive and water is preferably kneading, sanding.
In the present invention, the mixing of the mixture, the binder and the wetting agent is preferably performed under stirring.
In the present invention, the method of coating is preferably selected from micro-gravure coating, spray coating or spot coating.
In the invention, the thickness of the coating is preferably 5-25 micrometers, more preferably 10-20 micrometers, and most preferably 15 micrometers.
In the invention, the slurry is coated on the surface of a base material and then preferably dried to obtain a diaphragm; the drying temperature is preferably 50-70 ℃, more preferably 55-65 ℃, and most preferably 60 ℃.
In the present invention, the manganese oxide is preferably manganese oxide powder; the particle size of the manganese oxide powder is preferably 5-10 nm, more preferably 6-9 nm, and most preferably 7-8 nm.
In the present invention, the manganese oxide is preferably one selected from manganese dioxide, manganese monoxide, manganese sesquioxide, manganomanganic oxide, manganous anhydride and manganic anhydride.
In the present invention, the mass content of the manganese oxide in the slurry is preferably 30 to 50%, more preferably 35 to 45%, and most preferably 40%.
In the present invention, the manganese oxide belongs to the n-type semiconductor, the composition of which is not perfectly stoichiometric, always with a small amount of oxygen deficit, strictly expressed as MnOy (1.5)<y<2) When oxygen or other oxidizing gases are adsorbed, there is a lesser degree of adsorption to replenish oxygen vacancies. Manganese dioxide has a structure containing mixed valence (Mn)3+And Mn4+) The octahedral molecular sieve configuration (OMS) that provides manganese dioxide with high activity in catalytic reactions.
In the invention, water is adsorbed on the surface of manganese dioxide, and in most cases, the manganese dioxide is finally dissociated to generate-OH free radicals, which play an important role in adsorption and catalytic reaction; oxygen on manganese dioxide surface with O2-The more readily these oxygens are released from the oxide surface, the higher the activity. Manganese dioxide is a catalyst for deep oxidation, the reactivity of oxygen is high, and no acid is generated by reaction with aldehyde.
In the invention, in the process of removing formaldehyde, manganese dioxide plays a role of catalytic oxidation, and active groups O on the surface2-And the-OH free radical moiety is oxidized by formaldehyde to form carbon dioxide and possibly water, but the water produced may continue to dissociate into-OH free radicals to participate in the reaction of oxidizing formaldehyde.
In the present invention, the anti-settling agent is preferably selected from sodium carboxymethyl cellulose.
In the invention, the mass content of the anti-settling agent in the slurry is preferably 5-15%, more preferably 8-12%, and most preferably 10%.
In the invention, the adhesive is preferably selected from one or more of styrene-butadiene latex, phenylacrylic acid, polyacrylamide, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene oxide, modified paraffin resin, carbomer resin, polyacrylic acid, polyurethane acrylate, polyacrylate copolymer emulsion, polyurethane and carbamate.
In the invention, the mass content of the adhesive is preferably 1-10%, more preferably 2-8%, more preferably 3-6%, and most preferably 4-5%.
In the present invention, the binder is preferably an acrylic-type binder; the acrylic binder is preferably selected from one or more of acrylic acid and acrylate copolymers.
In the invention, the mass content of the adhesive in the slurry is preferably 5-20%, more preferably 10-15%, and most preferably 12-13%.
In the invention, the wetting agent is preferably selected from one or more of organosilicon ether surfactants, anionic surfactants and nonionic surfactants; the anionic surfactant is preferably selected from sodium alkylaryl sulfonate, sodium butylnaphthalene sulfonate, sodium hydroxyethyl sulfonate or sodium dodecyl sulfonate; the nonionic surfactant is preferably selected from long-chain fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylate, polyoxyethylene alkylolamide or fatty alcohol-polyoxyethylene ether.
In the invention, the mass content of the wetting agent in the slurry is preferably 0.1-1%, more preferably 0.5-1.5%, more preferably 0.8-1.2%, and most preferably 1%.
In the present invention, the substrate is preferably a porous film; the aperture of the base material is preferably 20-200 nm, more preferably 50-150 nm, more preferably 80-120 nm, and most preferably 100 nm; the porosity of the substrate is preferably > 50%, more preferably 50-55%, more preferably 51-54%, most preferably 52-53%.
In the present invention, the substrate is preferably selected from a polyethylene separator, a polypropylene porous film, a PET porous film, or a polyurethane porous film.
The invention provides a diaphragm prepared by the method in the technical scheme.
The invention provides an application of the diaphragm in the technical scheme in the field of formaldehyde removal, and the diaphragm is preferably applied to wallpaper and used for home decoration of wallpaper linings, so that an effect of removing indoor formaldehyde is achieved.
Manganese oxide (MnO) in the present invention2) The components are blended and kneaded with an anti-settling agent, and a certain amount of auxiliary agents (adhesive, binder, wetting agent and the like) are added to be dispersed and stirred to form fluid slurry containing manganese dioxide, and the fluid slurry is coated on a polyolefin substrate in the modes of micro-gravure coating, spraying, spot coating and the like to prepare a manganese dioxide coating film applied to wallpaper and used as a wallpaper lining for home decoration. The manganese oxide has excellent oxidation performance on formaldehyde, and can be efficiently catalytically decomposed under the condition of normal temperature environment; the manganese dioxide nano powder can adsorb a plurality of water molecules at normal temperature, and can effectively degrade formaldehyde; the preparation of the existing porous membrane is relatively mature, and comprises dry-method single-pulling and double-pulling, wet-method single-pulling and double-pulling, and the selection cost of the base material is low and the application is easy; the coating technology is mature, and the manganese dioxide slurry can be uniformly and flatly coated on the base material; the diaphragm coated with the manganese oxide can be directly pasted as wallpaper, is attractive and can degrade formaldehyde; compared with noble metal catalysts, the manganese oxide has rich resources and low cost.
In the following examples of the present invention, the raw materials are all commercially available products, and the nano manganese dioxide used is Tr-MnO provided by Luoyang Tong NanoTech Co., Ltd2A product model P, an anti-settling agent (sodium carboxymethylcellulose) provided by BYK company, an adhesive (BM-900B product (styrene-butadiene latex) provided by Nippon Ramon company), a binder (polyacrylate) provided by xylonite, and a wetting agent (alkane) provided by BYK companyA mixture of sodium aryl sulfonate and fatty alcohol-polyoxyethylene ether), the polyethylene film is a polyethylene film product provided by Jiangsu Housheng New energy science and technology limited, and the thickness is 16 microns.
Example 1
By weight, 80 parts of MnO2Mixing powder (with the particle size of 9-10 nm), 5 parts of anti-settling agent, 5 parts of adhesive and water, and uniformly stirring; adding 5 parts of binder and 5 parts of wetting agent, uniformly stirring at the stirring speed of 800rpm to obtain MnO2Sizing agent; the MnO2The mass content of the solid component in the slurry is 37 percent, and the mass content of the water is 63 percent;
uniformly coating the MnO with the thickness of 4 microns on the surface of a polyethylene film serving as a base material by using a micro gravure method2Slurry and then dried at a temperature of 60 ℃ to obtain MnO2The coating coats the separator.
Example 2
By weight, 80 parts of MnO2Mixing powder (with the particle size of 10-15 nm), 5 parts of anti-settling agent, 5 parts of adhesive and water, and uniformly stirring; adding 5 parts of binder and 5 parts of wetting agent, uniformly stirring at the stirring speed of 800rpm to obtain MnO2Sizing agent; the MnO2The mass content of the solid component in the slurry is 37 percent, and the mass content of the water is 63 percent;
uniformly coating the MnO with the thickness of 4 microns on the surface of a polyethylene film serving as a base material by using a micro gravure method2Slurry and then dried at a temperature of 60 ℃ to obtain MnO2The coating coats the separator.
Example 3
By weight, 80 parts of MnO2Mixing powder (with the particle size of 5-7 nm), 5 parts of anti-settling agent, 5 parts of adhesive and water, and uniformly stirring; adding 5 parts of binder and 5 parts of wetting agent, stirring uniformly at the stirring speed of 1200rpm to obtain MnO2Sizing agent; the MnO2The mass content of the solid component in the slurry is 37 percent, and the mass content of the water is 63 percent;
uniformly coating the MnO with the thickness of 4 microns on the surface of a polyethylene film serving as a base material by using a micro gravure method2The slurry is dried at the temperature of 60 ℃,to obtain MnO2The coating coats the separator.
Example 4
By weight, 80 parts of MnO2Mixing powder (with the particle size of 8-9 nm), 5 parts of anti-settling agent, 5 parts of adhesive and water, and uniformly stirring; adding 5 parts of binder and 5 parts of wetting agent, stirring uniformly at the stirring speed of 1200rpm to obtain MnO2Sizing agent; the MnO2The mass content of the solid component in the slurry is 37 percent, and the mass content of the water is 63 percent;
uniformly coating the MnO with the thickness of 4 microns on the surface of a polyethylene film serving as a base material by using a micro gravure method2Slurry and then dried at a temperature of 60 ℃ to obtain MnO2The coating coats the separator.
Comparative example 1
Polyethylene film, without any coating.
Performance detection
According to the GB50325-2010 standard of civil building indoor environmental pollution control, the formaldehyde removal effects of the products of the embodiment and the comparative example are detected, and the detection result is that the formaldehyde conversion rate of the product provided by the embodiment 1 is 52.0%; the formaldehyde conversion of the product provided in example 2 was 50.5%; the formaldehyde conversion of the product provided in example 3 was 58.5%; the formaldehyde conversion of the product provided in example 4 was 56.0%; the formaldehyde conversion of the product provided in comparative example 1 was 5%.
The manganese oxide has excellent oxidation performance on formaldehyde, and can be efficiently catalytically decomposed under the condition of normal temperature environment; the manganese dioxide nano powder can adsorb a plurality of water molecules at normal temperature, and can effectively degrade formaldehyde; the preparation of the existing porous membrane is relatively mature, and comprises dry-method single-pulling and double-pulling, wet-method single-pulling and double-pulling, and the selection cost of the base material is low and the application is easy; the coating technology is mature, and the manganese dioxide slurry can be uniformly and flatly coated on the base material; the diaphragm coated with the manganese oxide can be directly pasted as wallpaper, is attractive and can degrade formaldehyde; compared with noble metal catalysts, the manganese oxide has rich resources and low cost.
While only the preferred embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A method of making a separator, comprising:
mixing manganese oxide, an anti-settling agent, an adhesive, water, an adhesive and a wetting agent to obtain slurry;
and coating the slurry on the surface of a base material to obtain the diaphragm.
2. The method of claim 1, wherein the manganese oxide is a manganese oxide powder;
the particle size of the manganese oxide powder is 5-10 nm.
3. The method of claim 1, wherein the manganese oxide is selected from one of manganese dioxide, manganese monoxide, manganese sesquioxide, manganomanganic oxide, manganous anhydride, and manganic anhydride.
4. The method of claim 1, wherein the anti-settling agent is selected from sodium carboxymethyl cellulose.
5. The method of claim 1, wherein the adhesive is selected from one or more of styrene-butadiene latex, acrylic acid, polyacrylamide, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene oxide, modified paraffin resin, carbomer resin, polyacrylic acid, polyurethane acrylate, polyacrylate copolymer emulsion, polyurethane and urethane.
6. The method of claim 1, wherein the adhesive is an acrylic-type adhesive.
7. The method according to claim 1, wherein the wetting agent is selected from one or more of organosilicon ether surfactants, anionic surfactants and nonionic surfactants.
8. The method according to claim 7, wherein the anionic surfactant is selected from sodium alkyl aryl sulfonate, sodium butyl naphthalene sulfonate, sodium hydroxyethyl sulfonate or sodium dodecyl sulfonate;
the nonionic surfactant is selected from long-chain fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylate, polyoxyethylene alkylolamide or fatty alcohol-polyoxyethylene ether.
9. A separator made by the method of claim 1.
10. Use of the separator of claim 9 in the field of formaldehyde removal.
CN202110023964.8A 2021-01-08 2021-01-08 Diaphragm and preparation method and application thereof Pending CN112851991A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114024092A (en) * 2021-11-09 2022-02-08 江苏厚生新能源科技有限公司 Ice crystallization induced self-assembly porous coating diaphragm and preparation process thereof
CN114583385A (en) * 2022-03-02 2022-06-03 上海兰钧新能源科技有限公司 Lithium battery composite safety diaphragm, lithium battery cell and corresponding preparation method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105854592A (en) * 2016-04-28 2016-08-17 清华大学 Air purifying material and preparation method and application thereof
CN108939910A (en) * 2018-08-09 2018-12-07 合肥工业大学 A kind of pad pasting and its methods for making and using same of catalysis oxidation indoor formaldehyde
CN110373915A (en) * 2019-08-16 2019-10-25 大连瑞源非织造布有限公司 A kind of the environment-friendly non-woven fabric wallpaper and its preparation process of absorbable and degradable formaldehyde
CN111644049A (en) * 2020-05-06 2020-09-11 江苏卓高环保科技有限公司 Catalytic decomposition formaldehyde material with fiber surface porous structure and purifier thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105854592A (en) * 2016-04-28 2016-08-17 清华大学 Air purifying material and preparation method and application thereof
CN108939910A (en) * 2018-08-09 2018-12-07 合肥工业大学 A kind of pad pasting and its methods for making and using same of catalysis oxidation indoor formaldehyde
CN110373915A (en) * 2019-08-16 2019-10-25 大连瑞源非织造布有限公司 A kind of the environment-friendly non-woven fabric wallpaper and its preparation process of absorbable and degradable formaldehyde
CN111644049A (en) * 2020-05-06 2020-09-11 江苏卓高环保科技有限公司 Catalytic decomposition formaldehyde material with fiber surface porous structure and purifier thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114024092A (en) * 2021-11-09 2022-02-08 江苏厚生新能源科技有限公司 Ice crystallization induced self-assembly porous coating diaphragm and preparation process thereof
CN114583385A (en) * 2022-03-02 2022-06-03 上海兰钧新能源科技有限公司 Lithium battery composite safety diaphragm, lithium battery cell and corresponding preparation method
CN114583385B (en) * 2022-03-02 2024-03-15 上海兰钧新能源科技有限公司 Lithium battery composite safety diaphragm, lithium battery cell and corresponding preparation method

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