CN114573976A - Liquid absorption material and preparation and application thereof - Google Patents

Liquid absorption material and preparation and application thereof Download PDF

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CN114573976A
CN114573976A CN202011402000.6A CN202011402000A CN114573976A CN 114573976 A CN114573976 A CN 114573976A CN 202011402000 A CN202011402000 A CN 202011402000A CN 114573976 A CN114573976 A CN 114573976A
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polymer
absorbent material
liquid
liquid absorbent
group
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曹敏 王伟
王伟
曹敏
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Tesa SE
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Tesa SE
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions 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; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • 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
    • C08J2333/00—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
    • C08J2333/04—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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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
    • C08J2433/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • 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
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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
    • C08K3/38—Boron-containing compounds
    • C08K2003/382—Boron-containing compounds and nitrogen
    • C08K2003/385—Binary compounds of nitrogen with boron
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention relates to a liquid absorbing material and preparation and application thereof. The liquid absorbing material adopts a base polymer and a super absorbing polymer, and has excellent liquid absorbing performance, mechanical property and comprehensive performance.

Description

Liquid absorption material and preparation and application thereof
Technical Field
The invention relates to the field of materials, in particular to a liquid absorption material and preparation and application thereof.
Background
As the liquid absorbing material, foam, sponge, nonwoven fabric, and the like are mainly used at present. Although the foam and sponge have good liquid absorption performance, when excessive liquid is absorbed, the absorbed liquid seeps out, and the required liquid absorption amount can be achieved under the condition of high thickness. In the case of nonwoven fabrics, although they can absorb liquid, they gel when absorbing an excessive amount of liquid. In addition, the water absorption of the nonwoven fabric is not very high, and the fibers of the nonwoven fabric are arranged in different directions, and the fibers are not supported, so the nonwoven fabric is easy to be torn by hands, and therefore, the nonwoven fabric is mainly applied to the medical treatment, clothing and agriculture, and is rarely applied to electronics, automobiles or novel applications.
Therefore, there is a strong need in the art to develop a liquid-absorbent material having excellent liquid-absorbing properties and an excellent combination of properties.
Disclosure of Invention
The invention aims to provide a liquid absorbing material with excellent liquid absorbing performance and excellent comprehensive performance, and preparation and application thereof.
In a first aspect of the present invention, there is provided a liquid absorbent material prepared by:
1) providing a base polymer, a superabsorbent polymer, an optional filler and a release paper;
2) mixing the base polymer, the superabsorbent polymer and optionally the filler to obtain a mixed slurry;
3) coating the mixed slurry on the release paper;
4) drying the product obtained in the step 3), and removing the release paper to obtain the liquid absorbing material.
In another preferred embodiment, the base polymer is selected from the group consisting of: an adhesive polymer, a non-adhesive polymer, or a combination thereof.
In another preferred embodiment, the superabsorbent polymer is selected from the group consisting of: a starch-based water-absorbing polymer, a cellulose-based water-absorbing polymer, a synthetic polymer-based water-absorbing polymer, or a combination thereof.
In another preferred embodiment, the synthetic polymeric water-absorbing polymer is selected from the group consisting of: polyacrylates, polyacrylamides, or combinations thereof.
In another preferred embodiment, the polyacrylate is selected from the group consisting of: sodium polyacrylate, starch grafted sodium acrylate, or a combination thereof.
In another preferred embodiment, the filler is selected from the group consisting of: a flame retardant, a thermally conductive filler, a color masterbatch, an electrically conductive filler, or a combination thereof.
In another preferred embodiment, the base polymer is present in an amount of 75 to 98 wt%, based on the total weight of the mixed slurry; and/or
The content of the super absorbent polymer is 2 to 25 wt%.
In another preferred example, the temperature of the drying treatment is 50-160 ℃; and/or
The drying time is 1-20 min.
In a second aspect of the present invention, there is provided a method for preparing the liquid absorbent material of the first aspect of the present invention, comprising the steps of:
1) providing a base polymer, a superabsorbent polymer, an optional filler and a release paper;
2) mixing the base polymer, the superabsorbent polymer and optionally the filler to obtain a mixed slurry;
3) coating the mixed slurry on the release paper;
4) drying the product obtained in the step 3), and removing the release paper to obtain the liquid absorbing material.
In a third aspect of the invention there is provided the use of a liquid absorbent material according to the first aspect of the invention for an application selected from the group consisting of: medical supplies, clothing, agricultural supplies, batteries, electronic devices, automobiles, and food packaging.
It is to be understood that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with each other to form new or preferred embodiments. Not to be reiterated herein, but to the extent of space.
Drawings
FIG. 1 is a photograph showing the shape of a commercially available super absorbent nonwoven fabric 2 made of PET viscose fiber after absorbing water.
Figure 2 is a schematic diagram of the fire retardant performance test of the liquid absorbent material 4.
Detailed Description
Through long-term and intensive research, the inventor obtains the liquid absorption material with excellent liquid absorption performance and comprehensive performance by optimizing preparation raw materials and a preparation process. On this basis, the inventors have completed the present invention.
Liquid absorbent material
The liquid absorbing material can be obtained by mixing a basic polymer (such as polyurethane polymer) and a Super Absorbent Polymer (SAP) to coat the SAP on release paper and drying the SAP, or by mixing fillers such as FR (flame retardant), heat-conducting filler and/or color masterbatch with the above system according to needs. The liquid absorbing material can be applied to a wide range of fields, particularly the electronic or automobile industry or the EV battery industry which is a novel application of automobiles (for example, the cooling liquid of a battery module leaks, and if the cooling liquid leaks, great danger exists in an automobile).
In the present invention, the base polymer comprises an adhesive polymer and a non-adhesive polymer.
In another preferred embodiment, the base polymer is an adhesive polymer.
In another preferred embodiment, the base polymer is a non-tacky polymer.
The non-stick polymer includes, but is not limited to, a material selected from the group consisting of: solvent-based polyurethane, solvent-free polyurethane, solvent-based rubber, emulsion-based polyurethane, emulsion-based polylactic acid, or a combination thereof, and the non-tacky polymer is used as a liquid-absorbing base material.
The adhesive polymer includes, but is not limited to, a material selected from the group consisting of: an acrylic adhesive, a polyurethane adhesive, a silicone adhesive, or a combination thereof, and the adhesive polymer acts as an adhesive. The use of an adhesive polymer results in a liquid-absorbent material that is adhesive and does not require additional tape or glue to hold the material in place in the environment of use.
The solvent type polyurethane is solvent type polycarbon aliphatic polyurethane, which is composed of propanol, isopropanol, isobutyl acetate and dimethyl carbonate, and is a yellowish semitransparent liquid, a weak solvent system, hydrolysis resistance and uv resistance.
The solvent-free polyurethane is viscous at normal temperature and comprises 2 components, wherein one component is a polyisocyanate solution, and the other component is a polyalcohol solution.
The solvent-type rubber is a synthetic rubber that is insoluble in water and soluble in a solvent, such as SBS.
The emulsion type polyurethane is white emulsion obtained by emulsion polymerization of polyol and isocyanate.
The emulsion type polylactic acid is polylactic acid which is prepared by directly condensing lactic acid monomers, adding a catalyst and polymerizing the lactic acid monomers and polylactic acid with low relative molecular mass into polylactic acid with higher relative molecular weight.
The acrylic adhesive includes, but is not limited to, a material selected from the group consisting of: a water-borne acrylic adhesive, a solvent-borne acrylic adhesive, a solventless acrylic adhesive, or a combination thereof.
The water-based acrylic adhesive consists of acrylic resin and water, is milky viscous liquid and plays a role in adhesion.
The solvent type acrylic adhesive is mainly prepared from acrylic resin, an organic solvent and the like.
The solventless acrylic adhesive is primarily an acrylic polymer, a solvent-free material.
The polyurethane adhesive includes, but is not limited to, a material selected from the group consisting of: an aliphatic polyurethane adhesive, an aromatic polyurethane adhesive, or a combination thereof.
The aliphatic polyurethane adhesive is formed by polymerizing aliphatic isocyanate (such as hexamethylene diisocyanate) and polyol.
The aromatic polyurethane adhesive is prepared by polymerizing aromatic isocyanate (such as polymethylene polyphenyl polyisocyanate) and polyol.
The silica gel type adhesive is a solvent type silica gel adhesive.
The solvent-type silica gel adhesive is composed of organic silicon rubber, organic silicon resin, an organic solvent and the like.
In the invention, the super-absorbent polymer is a macromolecular material containing hydrophilic groups and a crosslinking structure, and can absorb water with the weight of hundreds to thousands of times of the self weight at most.
The superabsorbent polymer includes, but is not limited to, materials selected from the group consisting of: a starch-based water-absorbing polymer, a cellulose-based water-absorbing polymer, a synthetic polymer-based water-absorbing polymer, or a combination thereof.
The starch-based water-absorbing polymer includes, but is not limited to, a substance selected from the group consisting of: a polymer obtained by graft reaction of starch and acrylonitrile, a polymer obtained by graft polymerization of starch and a hydrophilic monomer (such as glycidyl methacrylate), or a combination thereof.
The cellulose-based water-absorbing polymer includes, but is not limited to, a substance selected from the group consisting of: carboxymethylation reactants of cellulose, graft copolymers of hydrophilic monomers of cellulose (e.g., acrylonitrile), or combinations thereof.
The synthetic polymer-based water-absorbing polymer includes, but is not limited to, a material selected from the group consisting of: polyacrylates, polyacrylamides, or combinations thereof.
The polyacrylate is selected from the following substances: sodium polyacrylate, starch grafted sodium acrylate, or a combination thereof.
The polyacrylamide is selected from the following substances: a non-ionic polyacrylamide, an anionic polyacrylamide, a cationic polyacrylamide, or a combination thereof.
In the present invention, the filler includes, but is not limited to, a material selected from the group consisting of: a flame retardant, a thermally conductive filler, a color masterbatch, an electrically conductive filler, or a combination thereof.
The flame retardant includes, but is not limited to, materials selected from the group consisting of: a halogen-based flame retardant, a phosphorus-based flame retardant, a nitrogen-based flame retardant, aluminum hydroxide, or a combination thereof.
The thermally conductive filler includes, but is not limited to, a substance selected from the group consisting of: magnesium oxide, aluminum oxide, boron nitride, or combinations thereof.
The color concentrate includes, but is not limited to, a material selected from the group consisting of: organic pigments, dyes, inorganic pigments, or combinations thereof.
The organic pigments include, but are not limited to, materials selected from the group consisting of: organic pigments for ink pigments and organic pigments for paints.
The dye includes, but is not limited to, a substance selected from the group consisting of: natural dyes, synthetic fuels.
The inorganic pigment includes, but is not limited to, a substance selected from the group consisting of: natural inorganic pigments, artificial inorganic pigments.
The conductive filler includes, but is not limited to, a substance selected from the group consisting of: carbon black, aluminum powder and zinc powder.
In the present invention, the base polymer is present in the slurry for preparing the liquid absorbent material in an amount of 75 to 98 wt%, preferably 80 to 95 wt%, more preferably 85 to 90 wt%.
In the present invention, in the slurry for producing the liquid absorbent material, the mass ratio of the base polymer to the super absorbent polymer is 5 to 30, preferably 8 to 25, more preferably 9 to 22.
In the present invention, in the slurry for preparing the liquid absorbent material, the mass fraction of the super absorbent polymer is 2 to 25 wt%, preferably 3 to 20 wt%, more preferably 4 to 10 wt%.
It is understood that in the present invention, in the slurry for preparing the liquid absorbent material, when the weight content of the super absorbent polymer is < 2 wt%, the liquid absorption function is not caused to be remarkable; when the weight content of the super absorbent polymer is more than 50 wt%, the viscosity of the slurry is too high to form a film.
In the present invention, the weight content of the filler in the slurry for preparing the liquid absorbent material is 0.1 to 20 wt%, preferably 1 to 15 wt%, more preferably 2 to 10 wt%.
In the liquid absorbent material, the superabsorbent polymer and optionally a filler are homogeneously distributed in the base polymer.
The liquid absorbent material has a unit volume (cm)3) The liquid absorption rate of (d) is calculated by subtracting the grammage before the imbibition from the grammage after the imbibition by dividing the grammage before the imbibition by the volume to obtain the liquid absorption per cubic centimeter.
Liquid absorption rate (weight after liquid absorption of liquid absorbent material T1-dry weight of liquid absorbent material T2)/volume of liquid absorbent material
The liquid absorbent material has one or more characteristics selected from the group consisting of:
1) the thickness of the liquid absorption material is 40-3000 μm, preferably 30-2500 μm;
2) unit volume (cm)3) Of said liquid-absorbent materialThe liquid absorption amount is not less than 0.5g, preferably not less than 2g, and more preferably not less than 5 g.
Preparation method
For the method of preparing the liquid absorbent material of the present invention, the release paper (or release layer) is a material including but not limited to those selected from the group consisting of: PET release film, PE release film and glassine release paper.
The thickness of the release paper is not particularly limited, and is usually 10 to 250. mu.m, preferably 20 to 150. mu.m, more preferably 25 to 75 μm.
The slurry is applied by a coating method including, but not limited to, a coating method selected from the group consisting of: blade coating, hand coating, tape casting, extrusion.
The drying treatment is carried out in an oven.
The drying temperature of the drying treatment is 50-160 ℃, preferably 80-140 ℃, more preferably 90-120 ℃. It is understood that when the drying temperature is less than 50 ℃, the sample is dried for a long time, cannot be filmed for a short time, and is very soft; when the drying temperature is more than 160 ℃ (e.g., 200 ℃), the surface tends to dry, cracks appear, the sample becomes hard, and the water absorption property is lowered.
The drying time of the drying treatment is 1-20min, preferably 2-15min, more preferably 3-10 min.
Compared with the prior art, the invention has the following main advantages:
(1) when the volumes are the same, water is taken as the liquid to be absorbed, and compared with a common non-woven fabric (or super-absorbent non-woven fabric), the liquid absorbing material has remarkably higher liquid absorbing performance and does not cause any liquid seepage problem at all;
(2) the liquid absorbing material of the invention can not have any problems of gelation, easy tearing, delamination and the like even after reaching the saturated liquid absorbing amount, and can still well maintain the mechanical strength;
(3) various properties (such as liquid absorption performance) of the liquid absorption material can be controllably designed by adjusting the dosage of Super Absorbent Polymer (SAP);
(4) a variety of additional functional properties (e.g., flame retardant, thermal conductivity, multi-color, etc.) can be imparted to the liquid absorbent material by the optional addition of fillers to the liquid absorbent material of the present invention including, but not limited to: flame retardant, heat conductive filler, color masterbatch, etc.;
(5) the liquid absorbing material has wide application field, can be applied to the fields of common medical treatment, clothing and agriculture, is also suitable for the fields of batteries, electronic devices, automobiles and food packaging, and has very excellent liquid absorbing performance (such as water, cooling liquid and the like) and comprehensive performance.
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental procedures, in which specific conditions are not noted in the following examples, are generally carried out according to conventional conditions or according to conditions recommended by the manufacturers. Unless otherwise indicated, percentages and parts are by weight.
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. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention. The preferred embodiments and materials described herein are intended to be exemplary only.
Preparation examples
Uniformly mixing a base polymer, a Super Absorbent Polymer (SAP) and optional fillers to obtain a coating slurry, coating the obtained coating slurry on release paper, and drying to obtain the liquid absorbing material, wherein the specific materials and processes are carried out according to the table 1.
TABLE 1
Figure BDA0002812791760000071
Figure BDA0002812791760000081
Examples of Performance testing
Mechanical properties
And (3) testing environment: indoor temperature 23 ℃ and humidity 54% RH
The test method comprises the following steps: DIN EN ISO 527-3
Sample treatment conditions: the test samples were the liquid-absorbent material 1 (solvent type polyurethane) and the liquid-absorbent material 2 (emulsion type polyurethane) prepared as above, a sample in a thermostatic chamber and placed in water for 5 minutes, the sample was cut into strips 15mm wide and 10cm long, and a tensile test was conducted, and the test results were obtained in a thermostatic chamber and in water for 5 minutes, respectively.
TABLE 2
Figure BDA0002812791760000082
From table 2 above, it can be seen that: the mechanical properties of the liquid absorbing material before and after absorbing water are not changed too much.
The liquid absorption properties of each material are shown in table 3 below.
TABLE 3
Figure BDA0002812791760000083
From table 3 above, it can be seen that: different types of products have some differences in the amount of water absorbed, but the absorbency properties of the developed superabsorbent absorbent material are best.
Flame retardant properties
And (3) testing conditions are as follows: the temperature is 23 +/-2 ℃ and the humidity is 50 +/-5%.
The results show that: the flame retardant properties of the liquid absorbent material 4 of the present invention are VTM-2, a UL94VTM-2 rating of vertical burn test.
Heat conductivity
And (3) testing environment: indoor temperature 22.6 ℃ and humidity 54% RH
The test method comprises the following steps: ASTMD5470
The results show that: the heat conductivity of the liquid absorbing material 5 of the invention is 0.28W/mk.
Further, the liquid absorbent material 6 to which the color masterbatch (carbon black) of the present invention is added is black in appearance.
All documents mentioned in this application are incorporated by reference in this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention can be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the present invention as defined by the appended claims.

Claims (10)

1. A liquid absorbent material, characterized in that it is prepared as follows:
1) providing a base polymer, a superabsorbent polymer, an optional filler and a release paper;
2) mixing the base polymer, the superabsorbent polymer and optionally the filler to obtain a mixed slurry;
3) coating the mixed slurry on the release paper;
4) drying the product obtained in the step 3), and removing the release paper to obtain the liquid absorbing material.
2. A liquid absorbent material as set forth in claim 1 wherein the base polymer is selected from the group consisting of: an adhesive polymer, a non-adhesive polymer, or a combination thereof.
3. A liquid absorbent material as set forth in claim 1 wherein the superabsorbent polymer is selected from the group consisting of: a starch-based water-absorbing polymer, a cellulose-based water-absorbing polymer, a synthetic polymer-based water-absorbing polymer, or a combination thereof.
4. A liquid absorbent material as set forth in claim 3 wherein the synthetic polymeric water absorbent polymer is selected from the group consisting of: polyacrylates, polyacrylamides, or combinations thereof.
5. A liquid absorbent material as set forth in claim 4 wherein the polyacrylate is selected from the group consisting of: sodium polyacrylate, starch grafted sodium acrylate, or a combination thereof.
6. A liquid absorbent material as set forth in claim 1 wherein the filler is selected from the group consisting of: a flame retardant, a thermally conductive filler, a color masterbatch, an electrically conductive filler, or a combination thereof.
7. A liquid absorbent material as set forth in claim 1 wherein the base polymer is present in an amount of 75 to 98 weight percent based on the total weight of the mixed slurry; and/or
The content of the super absorbent polymer is 2 to 25 wt%.
8. A liquid absorbent material as set forth in claim 1 wherein the drying process is carried out at a temperature of 50-160 ℃; and/or
The drying time is 1-20 min.
9. A method of making the liquid absorbent material of claim 1, comprising the steps of:
1) providing a base polymer, a superabsorbent polymer, an optional filler and a release paper;
2) mixing the base polymer, the superabsorbent polymer and optionally the filler to obtain a mixed slurry;
3) coating the mixed slurry on the release paper;
4) drying the product obtained in the step 3), and removing the release paper to obtain the liquid absorbing material.
10. Use of a liquid absorbent material as set forth in claim 1 for an application selected from the group consisting of: medical supplies, clothing, agricultural supplies, batteries, electronic devices, automobiles, and food packaging.
CN202011402000.6A 2020-12-02 2020-12-02 Liquid absorption material and preparation and application thereof Pending CN114573976A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1181023A (en) * 1995-02-20 1998-05-06 施托克豪森公司 Sheet-like superabsorbent structure
CN1602209A (en) * 2001-12-11 2005-03-30 宝洁公司 Liquid absorbing thermoplastic materials and the utilization thereof in absorbent articles
CN106661415A (en) * 2015-07-28 2017-05-10 株式会社Lg化学 Binder composition, slurry composition, and method for coating surface of metal with superabsorbent polymer
WO2019230680A1 (en) * 2018-05-29 2019-12-05 日東電工株式会社 Adhesive agent composition, adhesive agent layer, and adhesive sheet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1181023A (en) * 1995-02-20 1998-05-06 施托克豪森公司 Sheet-like superabsorbent structure
CN1602209A (en) * 2001-12-11 2005-03-30 宝洁公司 Liquid absorbing thermoplastic materials and the utilization thereof in absorbent articles
CN106661415A (en) * 2015-07-28 2017-05-10 株式会社Lg化学 Binder composition, slurry composition, and method for coating surface of metal with superabsorbent polymer
WO2019230680A1 (en) * 2018-05-29 2019-12-05 日東電工株式会社 Adhesive agent composition, adhesive agent layer, and adhesive sheet

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