WO2022114536A1 - 접착제, 건조 접착층을 포함하는 구조물과 전열교환소자, 및 그 제조 방법 - Google Patents
접착제, 건조 접착층을 포함하는 구조물과 전열교환소자, 및 그 제조 방법 Download PDFInfo
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- WO2022114536A1 WO2022114536A1 PCT/KR2021/014865 KR2021014865W WO2022114536A1 WO 2022114536 A1 WO2022114536 A1 WO 2022114536A1 KR 2021014865 W KR2021014865 W KR 2021014865W WO 2022114536 A1 WO2022114536 A1 WO 2022114536A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adhesive
- cellulose
- heat exchange
- total heat
- nano
- Prior art date
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- 239000000853 adhesive Substances 0.000 title claims abstract description 199
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 199
- 239000012790 adhesive layer Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title abstract description 21
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 51
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 47
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 47
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229920001046 Nanocellulose Polymers 0.000 claims abstract description 30
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 12
- 239000001913 cellulose Substances 0.000 claims description 45
- 229920002678 cellulose Polymers 0.000 claims description 44
- 239000003242 anti bacterial agent Substances 0.000 claims description 37
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 34
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 20
- 239000002274 desiccant Substances 0.000 claims description 16
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 14
- 239000004599 antimicrobial Substances 0.000 claims description 9
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000001110 calcium chloride Substances 0.000 claims description 7
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 7
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 230000007480 spreading Effects 0.000 claims description 7
- 238000003892 spreading Methods 0.000 claims description 7
- LVDKZNITIUWNER-UHFFFAOYSA-N Bronopol Chemical compound OCC(Br)(CO)[N+]([O-])=O LVDKZNITIUWNER-UHFFFAOYSA-N 0.000 claims description 6
- LLEMOWNGBBNAJR-UHFFFAOYSA-N biphenyl-2-ol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1 LLEMOWNGBBNAJR-UHFFFAOYSA-N 0.000 claims description 6
- 229960003168 bronopol Drugs 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- WOHLSTOWRAOMSG-UHFFFAOYSA-N 2,3-dihydro-1,3-benzothiazole Chemical compound C1=CC=C2SCNC2=C1 WOHLSTOWRAOMSG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 229920003043 Cellulose fiber Polymers 0.000 abstract description 21
- 229940105329 carboxymethylcellulose Drugs 0.000 description 41
- 238000000034 method Methods 0.000 description 30
- 239000000243 solution Substances 0.000 description 24
- 239000002250 absorbent Substances 0.000 description 18
- 230000002745 absorbent Effects 0.000 description 18
- 230000008569 process Effects 0.000 description 18
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
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- 239000003063 flame retardant Substances 0.000 description 10
- 238000000227 grinding Methods 0.000 description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 9
- 230000000844 anti-bacterial effect Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 239000000835 fiber Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 6
- 239000004202 carbamide Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 5
- 239000010452 phosphate Substances 0.000 description 5
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 4
- 230000003405 preventing effect Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical class C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000032050 esterification Effects 0.000 description 3
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- 238000010438 heat treatment Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
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- 239000000203 mixture Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
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- 230000007423 decrease Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 2
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- 150000003839 salts Chemical class 0.000 description 2
- FDRCDNZGSXJAFP-UHFFFAOYSA-M sodium chloroacetate Chemical compound [Na+].[O-]C(=O)CCl FDRCDNZGSXJAFP-UHFFFAOYSA-M 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
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- 239000000227 bioadhesive Substances 0.000 description 1
- ORSVWFJAARXBHC-UHFFFAOYSA-N carbamic acid;phosphoric acid Chemical compound NC(O)=O.OP(O)(O)=O ORSVWFJAARXBHC-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229920006184 cellulose methylcellulose Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000490 cosmetic additive Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003230 hygroscopic agent Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methyl-cyclopentane Natural products CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J101/00—Adhesives based on cellulose, modified cellulose, or cellulose derivatives
- C09J101/08—Cellulose derivatives
- C09J101/26—Cellulose ethers
- C09J101/28—Alkyl ethers
- C09J101/286—Alkyl ethers substituted with acid radicals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J101/00—Adhesives based on cellulose, modified cellulose, or cellulose derivatives
- C09J101/08—Cellulose derivatives
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0015—Heat and mass exchangers, e.g. with permeable walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/03—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/16—Esters of inorganic acids
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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
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
- C08L1/28—Alkyl ethers
- C08L1/286—Alkyl ethers substituted with acid radicals, e.g. carboxymethyl cellulose [CMC]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J101/00—Adhesives based on cellulose, modified cellulose, or cellulose derivatives
- C09J101/08—Cellulose derivatives
- C09J101/16—Esters of inorganic acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2307/748—Releasability
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
- F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives
Definitions
- the present invention is applicable to the adhesive-related technical field, for example, relates to an adhesive containing a cellulose fiber, a structure and a total heat exchange element including a dry adhesive layer, and a manufacturing method thereof.
- Nanocellulose is a material that has a nanometer-level diameter and micrometer-level length in a form in which the crystalline and amorphous parts of cellulose, the main component of plant cell walls, are combined. Such nano-cellulose is an eco-friendly material with a large aspect ratio and excellent mechanical properties.
- Nano-cellulose can be prepared by methods such as mechanical grinding, chemical dissolution, and biological culture.
- Nanocellulose mainly obtained by mechanical grinding and chemical dissolution, is obtained in the form of a suspension dispersed in water due to hydrophilic functional groups (hydroxyl groups), so it can be applied as a composite material strengthening agent, thickener, cosmetic additive, etc.
- nano cellulose is to be used in adhesives.
- the adhesive using such nano cellulose can be used for adhesion of the total heat exchange element.
- Patent Document 1 is an invention related to an adhesive using nanocellulose.
- the adhesive according to the invention described in Patent Document 1 contains nano-cellulose and starch at a concentration of 0.1 wt% to 12.0 wt% and 0.1 wt% to 12.0 wt%, based on the total weight of the adhesive.
- Produced by binding in a proportion, the paper to be bound can be applied to the surface of the product.
- the starch contained in the adhesive is easily decomposed by microorganisms, and there is a problem in that the adhesive strength decreases over time, and also there is a problem in that it is vulnerable to the propagation of bacteria and mold.
- Patent Document 2 discloses a method for producing a natural adhesive comprising pulverized (separated) cellulose and water having a diameter of 300 ⁇ m to 1 nm.
- an adhesive made of only nano cellulose is accompanied by a moisture bleed phenomenon, resulting in a strength inferiority phenomenon before drying, and also has a problem in causing a phenomenon in which wrinkles occur in the applied paper after drying.
- An object of the present invention is to provide an adhesive, a structure including a dry adhesive layer, a total heat exchange element, and a method for manufacturing the same, which can prevent moisture from spreading during application of the adhesive to prevent the weakening of adhesive strength during drying.
- an object of the present invention is to provide an adhesive, a structure including a dry adhesive layer, a total heat exchange element, and a method for manufacturing the same, which can prevent the weakening of adhesive strength when the adhesive is dried by imparting hygroscopicity to the adhesive.
- the present invention is to provide an adhesive capable of imparting flame retardancy to the adhesive itself, a structure including a dry adhesive layer, a total heat exchange element, and a method for manufacturing the same.
- Another object of the present invention is to provide an adhesive capable of imparting antibacterial properties to the adhesive, a structure including a dry adhesive layer, a total heat exchange device, and a method for manufacturing the same.
- an object of the present invention is to provide an adhesive capable of improving total heat exchange efficiency when applied to a total heat exchange element, a structure including a dry adhesive layer, a total heat exchange element, and a method for manufacturing the same.
- the present invention provides an adhesive comprising a solid content dispersed in water, wherein the solid content includes: nano cellulose fibers; and carboxymethyl cellulose to which a carboxymethyl group is imparted.
- the adhesive may include 0.1 to 5% by weight of the nano-cellulose, and 0.1 to 5% by weight of the carboxymethyl cellulose.
- the adhesive may further include an inorganic moisture absorbent.
- the inorganic moisture absorbent may include at least one of calcium chloride, lithium chloride, magnesium chloride, and silica gel.
- the adhesive may include 0.1 to 1% by weight of the inorganic moisture absorbent.
- the adhesive may further include an antibacterial agent.
- the antibacterial agent may include at least one of Ag, Cu or Zn-supported porous inorganic antibacterial agent or organic antibacterial agent including bronopol, phenylphenols or benzothiazolines.
- the adhesive may include 0.1 to 1% by weight of the antibacterial agent.
- the nano-cellulose may have a diameter of 1 to 50 nm.
- a phosphoric acid functional group may be provided to the nano-cellulose.
- the phosphoric acid functional group and the carboxymethyl group may be provided in a ratio of 0.5 to 3.0 mmol/g, respectively.
- carboxymethyl cellulose may prevent the water from spreading to the object to be adhered.
- the content of the water may be 88.0 to 99.6% by weight.
- the present invention provides a structure comprising a dry adhesive layer positioned between the first member and the second member, wherein the dry adhesive layer is 15 to 35 wt% of nano cellulose, and carboxyl It may be composed of 65 to 85% by weight of carboxymethyl cellulose to which a methyl group is imparted.
- the dry adhesive layer may further include an inorganic moisture absorbent.
- the dry adhesive layer may further include an antibacterial agent.
- the present invention provides a total heat exchange device comprising a dry adhesive layer, comprising: a first total heat exchange paper; a second total heat exchange paper; and a dry adhesive layer positioned between the first total heat exchange paper and the second total heat exchange paper, wherein the dry adhesive layer includes 15 to 35 wt% of nano cellulose, and 65 to 85 wt% of carboxymethyl cellulose to which a carboxymethyl group is imparted. % may be included.
- first total heat exchanger may be a member for heat exchange
- second total heat exchanger may be a spacer positioned between the first total heat exchangers to form a space through which air passes.
- the present invention provides a method for manufacturing an adhesive comprising a solid content dispersed in water, the method comprising: obtaining a first solution in which nano cellulose is dispersed; obtaining a second solution in which carboxymethyl cellulose to which a carboxymethyl group is imparted is dispersed; It may be configured to include mixing the first solution and the second solution.
- step of adding an inorganic desiccant may be further included.
- step of adding an antibacterial agent may be further included.
- a phosphoric acid functional group may be provided to the nano-cellulose.
- the phosphoric acid functional group may include adding pulp and phosphoric acid in an amount of 1:0.01 to 1:0.5 wt% to obtain the nano-cellulose.
- the embodiment of the present invention has the following effects.
- the adhesive according to the present invention has the effect of imparting hygroscopicity, flame retardancy, moisture prevention, and antibacterial properties to the adhesive.
- the adhesive according to the present invention can maintain high adhesive strength even at a relatively low drying temperature, and it is possible to impart flame retardancy without a separate flame retardant by a phosphate functional group.
- FIG. 1 is a schematic diagram showing an adhesive according to an embodiment of the present invention.
- Figure 2 is a schematic diagram showing the moisture trapping ability of the adhesive according to an embodiment of the present invention.
- FIG. 3 is a schematic view showing the moisture-collecting state of the adhesive according to the comparative example.
- FIG. 4 is a cross-sectional schematic view showing a structure including a dry adhesive layer to which an adhesive is applied according to an embodiment of the present invention.
- FIG. 5 is a schematic view showing a total heat exchanger and a total heat exchange element to which the adhesive according to an embodiment of the present invention can be applied.
- FIG. 6 is a schematic diagram showing an example of a total heat exchange device to which the adhesive according to an embodiment of the present invention can be applied.
- FIG. 7 is a schematic diagram showing another example of a total heat exchange device to which the adhesive according to an embodiment of the present invention can be applied.
- FIG. 8 is a schematic diagram showing another example of a total heat exchange device to which the adhesive according to an embodiment of the present invention can be applied.
- FIG. 9 is a flowchart illustrating a method of manufacturing an adhesive according to an embodiment of the present invention.
- FIG. 10 is a flowchart illustrating a process of obtaining a solution in which nano-cellulose is dispersed in the method of manufacturing an adhesive according to an embodiment of the present invention.
- FIG. 11 is a flowchart illustrating a process of obtaining a solution in which carboxymethyl cellulose is dispersed in a method of manufacturing an adhesive according to an embodiment of the present invention.
- the present invention relates to an adhesive and a method for manufacturing the same, for example, the adhesive according to the present invention can be used in a total heat exchange element.
- the adhesive according to the present invention has the advantage of imparting hygroscopicity, flame retardancy, moisture prevention, and antibacterial properties to the adhesive.
- Adhesiveness and flame retardancy of the adhesive may be implemented by nano-cellulose.
- preventing moisture from spreading of the adhesive may be implemented by carboxymethyl cellulose.
- flame retardancy may be imparted by the phosphoric acid group of nanocellulose.
- the hygroscopicity of the adhesive may be realized by an inorganic hygroscopic agent.
- the antibacterial property can be realized by the addition of the antibacterial agent.
- It may include a phosphate functional group of nanocellulose.
- a phosphate functional group of nanocellulose As such, it is possible to impart functionality to the adhesive due to the excellent bonding properties of the additives including the phosphate-treated nano-cellulose and carboxymethyl cellulose, the inorganic moisture absorbent and the antibacterial agent.
- the hydroxyl group (-OH) present in nano cellulose and carboxymethyl cellulose may be combined with the cationic functional additive material.
- the adhesive according to the present invention can be used in a total heat exchange element.
- moisture absorption is imparted to improve the latent heat exchange efficiency. Therefore, it can contribute to the improvement of the total heat exchanger efficiency.
- the adhesive according to the present invention can maintain high adhesive strength even at a relatively low drying temperature, and it is possible to impart flame retardancy without a separate flame retardant by a phosphate functional group.
- the adhesive according to the present invention is a material that can be recycled by dissolving in water, is harmless to the human body or the environment, and is a odorless material. Therefore, when performing work using the adhesive according to the present invention, it is possible to improve the work efficiency in the process.
- Nanocellulose is a crystalline polymer that is the main component of plant cell walls, and is a fibrous nanomaterial with a diameter of 100 nm or less. Such nano-cellulose exhibits high strength comparable to glass fiber, and has a low coefficient of thermal expansion of 10 ppm/K or less, so that it has very good thermal stability.
- the present invention proposes a manufacturing method for lowering the grinding energy after undergoing chemical pretreatment.
- Dispersibility refers to the property of nano-cellulose to be stably suspended in an aqueous solution without precipitation.
- Adhesion refers to a property of being fixed and maintained without peeling due to chemical bonding or physical adsorption after being applied and dried between an object to be adhered, for example, paper and paper.
- the adhesive strength and total heat exchange efficiency of the adhesive can be improved.
- the present invention it is possible to reduce the environmental burden compared to the conventional adhesive, to provide various functionalities, and to ensure the easiness of operation in the process.
- the adhesive according to the present invention can be variously applied as an adhesive capable of bonding various materials of the same or different types other than the total heat exchange element.
- FIG. 1 is a schematic diagram showing an adhesive according to an embodiment of the present invention.
- the adhesive according to an embodiment of the present invention may be an adhesive including solid content dispersed in water 10 . That is, the adhesive according to an embodiment of the present invention may be a water-based adhesive.
- the solid content dispersed in water may include nano-cellulose 20 and carboxymethyl cellulose 30 to which a carboxymethyl group 32 is provided.
- the adhesive may contain 0.1 to 5 wt% of the nano cellulose 20 (wt%), and 0.1 to 5 wt% of the carboxymethyl cellulose 30.
- the adhesive according to an embodiment of the present invention may further include an inorganic moisture absorbent (40).
- the inorganic desiccant 40 may include at least one of calcium chloride, lithium chloride, magnesium chloride, and silica gel.
- the inorganic moisture absorbent 40 may be included in the adhesive in an amount of 0.1 to 1% by weight.
- the adhesive according to an embodiment of the present invention may further include an antibacterial agent (50).
- the antibacterial agent 50 may include at least one of Ag, Cu, or Zn-supported porous inorganic antibacterial agent or organic antibacterial agent including bronopol, phenylphenols, or benzothiazolines.
- the antibacterial agent 50 may be included in the adhesive in an amount of 0.1 to 1% by weight.
- the content of the water 10 constituting the solvent of the adhesive may be 88.0 to 99.6% by weight. That is, water 10 may occupy most of the mass of the adhesive before drying.
- a phosphoric acid functional group 22 may be provided to the nano-cellulose 20 .
- the nano-cellulose 20 may include the nano-cellulose fibers 21 .
- Phosphoric acid functional groups 22 may be provided to the nano-cellulose fibers 21 .
- a plurality of nano-cellulose fibers 21 or an individual in which a phosphoric acid functional group 22 is provided to the nano-cellulose fibers 21 may be referred to as nano-cellulose 20 .
- carboxymethyl cellulose 30 may include nano cellulose fibers 31 .
- a carboxymethyl group 32 may be provided to the nano-cellulose fiber 31 .
- a plurality of nano-cellulose fibers 31 or an individual in which a carboxymethyl group 32 is provided to the nano-cellulose fibers 31 may be referred to as carboxymethyl cellulose 30 .
- the nano-cellulose fibers 21 and 31 may have a diameter of 1 to 50 nm.
- the phosphoric acid functional group 22 and the carboxymethyl group 32 may be provided to the nano-cellulose fibers 21 and 31 at a ratio of 0.5 to 3.0 mmol/g, respectively.
- FIG. 1 it shows a state in which water particles 11 are collected in carboxymethyl cellulose 30 .
- Carboxy methyl cellulose 30 may have a high moisture trapping ability. That is, many water particles 11 may be collected in the carboxymethyl cellulose 30 including the nano-cellulose fibers 31 to which the carboxymethyl group 32 is provided.
- the carboxymethyl cellulose 30 component can prevent the water 10 contained in the adhesive from spreading to the adhesive object.
- the nano-cellulose 20 included in the adhesive may improve the adhesive strength and flame retardancy of the adhesive.
- flame retardancy may be imparted by the phosphate group 22 of the nano-cellulose 20 .
- the hygroscopicity of the adhesive can be improved by the inorganic desiccant 40 .
- the inorganic desiccant 40 of an appropriate content can improve the moisture absorption on the adhesive surface, and when the adhesive is used for the total heat exchange element, the total heat exchange efficiency can be improved.
- the inorganic desiccant 40 is advantageously contained in an appropriate amount in the adhesive.
- the inorganic moisture absorbent 40 when it is excessively included in the adhesive, it may cause agglomeration of the solid content. As a result, a phase separation phenomenon and a decrease in adhesive strength may occur.
- antimicrobial properties may be secured by the addition of the antimicrobial agent 50 .
- the antibacterial agent 50 is also included in an appropriate amount in the adhesive. For example, when the antimicrobial agent 50 is excessively included, the adhesive force of the adhesive may be reduced.
- the inorganic moisture absorbent 40 may be included in the adhesive in an amount of 0.1 to 1 wt%.
- the antimicrobial agent 50 may be included in the adhesive in an amount of 0.1 to 1% by weight.
- each functionality can be imparted to the adhesive.
- the adhesive according to the present invention has the effect of imparting hygroscopicity, flame retardancy, moisture prevention, and antibacterial properties to the adhesive.
- the adhesive according to the present invention can be used in a total heat exchange element.
- moisture absorption is imparted to improve the latent heat exchange efficiency.
- the adhesive according to the present invention can maintain high adhesive strength even at a relatively low drying temperature, and it is possible to impart flame retardancy without a separate flame retardant by a phosphate functional group.
- the adhesive according to the present invention is a material that can be recycled by dissolving in water, is harmless to the human body or the environment, and is a odorless material. Therefore, when performing work using the adhesive according to the present invention, it is possible to improve the work efficiency in the process.
- Figure 2 is a schematic diagram showing the moisture trapping ability of the adhesive according to an embodiment of the present invention.
- 3 is a schematic view showing the moisture-collecting state of the adhesive according to the comparative example.
- FIG. 2 it shows a state in which the adhesive according to the embodiment of the present invention is locally applied to the bonding object 100 .
- FIG. 3 shows a state in which an adhesive containing only the cellulose fibers 2 in water is locally applied to the object 100 to be adhered.
- the carboxymethyl cellulose 30 in which the nano cellulose fiber 31 to which the carboxymethyl group 32 is provided is dispersed is dispersed in the water 10 constituting the adhesive.
- Water 10 is relatively strongly trapped in the carboxymethyl cellulose 30 , so that the force A to spread to the adhesive object 100 may be relatively very weak.
- the force (B) to spread the adhesive object 100 and the water 10 to the adhesive object 100 may be relatively large.
- moisture bleed may occur, resulting in a strength inferiority phenomenon until the adhesive is dried.
- it may cause a phenomenon in which wrinkles are generated in the object to be adhered 100 after drying of the adhesive.
- the application state is maintained until the adhesive is dried.
- the adhesive strength during application of the adhesive may be maintained, and the adhesive surface of the object 100 may be evenly maintained even after the adhesive is dried.
- the adhesive object 100 to which the adhesive is applied includes paper, a more excellent effect may be exhibited.
- FIG. 4 is a cross-sectional schematic view showing a structure including a dry adhesive layer to which an adhesive is applied according to an embodiment of the present invention.
- the dry adhesion syndrome may mean a layer in which the water 10 is dried while the above-described adhesive is applied.
- the dry adhesive layer may include the nano cellulose fibers 21 and 31 and the carboxymethyl group 32 .
- this dry adhesive layer may include the nano-cellulose 20 and the carboxymethyl cellulose 30.
- the nano-cellulose 20 may include the nano-cellulose fibers 21 .
- a phosphoric acid functional group 22 may be provided to the nano-cellulose fiber 21 .
- carboxymethyl cellulose 30 may include nano cellulose fibers 31 .
- a carboxymethyl group 32 may be provided to the nano-cellulose fiber 31 .
- the nano-cellulose fibers 21 and 31 may have a diameter of 1 to 50 nm.
- the content (weight) of the carboxymethyl cellulose 30 in the dry adhesive layer may be greater than that of the nano-cellulose 20 .
- the dry adhesive layer may be composed of 15 to 35% by weight of the nano cellulose 20, and 65 to 85% by weight of the carboxymethyl cellulose 30 to which the carboxymethyl group 32 is imparted.
- At least one of the inorganic moisture absorbent 40 and the antibacterial agent 50 may be further included in the dry adhesive layer.
- the content of the inorganic moisture absorbent 40 may be greater than the content of the antibacterial agent 50 .
- the inorganic desiccant 40 may include at least one of calcium chloride, lithium chloride, magnesium chloride, and silica gel.
- the antimicrobial agent 50 may include at least one of Ag, Cu, or Zn-supported porous inorganic antibacterial agent or organic antibacterial agent including bronopol, phenylphenols, or benzothiazolines.
- first member 110 and the second member 120 may be structures made of paper.
- the dry adhesive layer can efficiently attach the first member 110 and the second member 120 .
- the application state can be maintained until the adhesive is dried. have.
- the adhesive strength when the adhesive is applied can be maintained, and the adhesive surfaces of the objects to be adhered 110 and 120 can be uniformly maintained even in the dry adhesive after the adhesive is dried.
- An example of a structure including such a dry adhesive layer may be a total heat exchange element.
- the first member 110 may be a first total heat exchange paper
- the second member 120 may be a second total heat exchange paper.
- the first total heat exchange paper 110 may be a member for heat exchange
- the second total heat exchange paper 120 is positioned between the first total heat exchange papers 110 to form a space through which air can flow.
- FIG. 5 is a schematic view showing a total heat exchanger and a total heat exchange element to which the adhesive according to an embodiment of the present invention can be applied.
- the adhesive according to an embodiment of the present invention may be applied to the total heat exchanger 101 shown in FIG. 5 .
- a total heat exchange element 100 may be provided inside the total heat exchanger 101 .
- the warmed fresh air is exchanged with the indoor warm polluted air, and eventually The cooled polluted air may be discharged through the total heat exchanger 101 .
- the total heat exchange element 100 includes a liner for latent heat exchange and a spacer that is positioned between the liner to maintain a gap and block gas and allow air to flow through the gap.
- the liner may correspond to the first total heat exchange paper 110 of FIG. 4
- the spacer may correspond to the second total heat exchange paper 120 of FIG. 4 .
- the introduced air may be supplied (T2) through the spacer, then ventilated with the air in the room and exhausted (T1) by a heat exchange process.
- the total heat exchange element 100 may be installed through the wall along a diagonal.
- a detailed description of the total heat exchange element 100 will be omitted.
- FIG. 6 is a schematic diagram showing an example of a total heat exchange device to which the adhesive according to an embodiment of the present invention can be applied.
- 7 is a schematic diagram showing another example of a total heat exchange device to which the adhesive according to an embodiment of the present invention can be applied.
- 8 is a schematic diagram showing another example of a total heat exchange device to which the adhesive according to an embodiment of the present invention can be applied.
- the adhesive according to an embodiment of the present invention may be applied between the first total heat exchange element 110 and the second total heat exchange element 120 , 121 , 122 for this total heat exchange element.
- a dry adhesive layer may be formed.
- the dry adhesive layer positioned between the first total heat exchange paper 110 and the second total heat exchange paper 120, 121, 122 is nano cellulose 20 to 15 to 35 wt%, and It may be configured to include 65 to 85% by weight of carboxymethyl cellulose 30 to which the carboxymethyl group 32 is imparted.
- At least one of the inorganic moisture absorbent 40 and the antibacterial agent 50 may be further included in the dry adhesive layer.
- the content of the inorganic moisture absorbent 40 may be greater than the content of the antibacterial agent 50 .
- the inorganic desiccant 40 may include at least one of calcium chloride, lithium chloride, magnesium chloride, and silica gel.
- Matters not described above may be equally applied to the matters described with reference to FIG. 4 .
- a second total heat exchange paper (spacer) 120 may be disposed between the first total heat exchange papers (liner) 110 in a bent form.
- an adhesive may be used in the portion (C) where the corners of the first total heat exchange paper 110 and the second total heat exchange paper 120 meet.
- FIG. 7 shows another example of a total heat exchange element.
- a second total heat exchange paper (spacer) 121 may be disposed between the first total heat exchange papers (liner) 110 in a bent form.
- an adhesive may be used in the portion (D) where the inflection points of the first total heat exchange paper 110 and the second total heat exchange paper 121 meet.
- the pitch P of the total heat exchange element shown in FIG. 7 may be further reduced compared to the total heat exchange element shown in FIG. 6 , and thus the height H may be reduced.
- the total heat exchange element shown in FIG. 7 has an increased adhesive surface, and thus pressure loss can be reduced.
- latent heat exchange efficiency may be improved. Accordingly, the transfer performance of temperature and humidity through the air may be improved.
- the adhesive according to the embodiment of the present invention described above may exhibit excellent performance. That is, the adhesive according to the embodiment of the present invention can satisfy characteristics such as hygroscopicity and flame retardancy required for such a total heat exchange device.
- the adhesive according to the embodiment of the present invention contains carboxymethyl cellulose 30, the force to spread the adhesive to the first total heat exchange paper 110 and the second total heat exchange paper 121 is relatively weak, so the adhesive The coating state can be maintained until drying of the.
- the adhesive strength when the adhesive is applied can be maintained, and even after the adhesive is dried, the adhesive surfaces of the first total heat exchange paper 110 and the second total heat exchange paper 121 can be maintained evenly.
- the total heat exchange element shown in FIG. 8 corresponds to an example in which the contact area E between the first total heat exchange site 110 and the second total heat exchange site 122 is increased more than that of FIG. 7 .
- the effect of the performance of the adhesive on the efficiency of the total heat exchange element may be greater.
- the adhesive according to the embodiment of the present invention described above can exhibit excellent performance. That is, the adhesive according to the embodiment of the present invention can satisfy characteristics such as hygroscopicity and flame retardancy required for such a total heat exchange device.
- latent heat exchange efficiency may be improved. Accordingly, the transfer performance of temperature and humidity through the air may be improved.
- the tendency of the adhesive to spread to the first total heat exchange paper 110 and the second total heat exchange paper 122 is reduced, so that the application state can be maintained until the adhesive is dried. have.
- the adhesive strength when the adhesive is applied can be maintained, and even after the adhesive is dried, the adhesive surfaces of the first total heat exchange paper 110 and the second total heat exchange paper 122 can be maintained evenly.
- FIG. 9 is a flowchart illustrating a method of manufacturing an adhesive according to an embodiment of the present invention.
- FIG. 9 shows a method of manufacturing an adhesive including a solid content dispersed in water according to an embodiment of the present invention.
- a manufacturing method according to an embodiment of the present invention will be described with reference to FIG. 9 . In this case, it may be described with reference to FIG. 1 .
- a step (S10) of obtaining a first solution in which the nano-cellulose 20 is dispersed may be performed. That is, a nano-cellulose solution can be obtained by dispersing the nano-cellulose fibers 21 in a solvent (water).
- the phosphoric acid functional group 22 may be provided to the nano-cellulose fiber 21 . That is, the nano-cellulose solution may be a phosphate-treated nano-cellulose solution.
- the phosphoric acid functional group 22 of the phosphate-treated nanocellulose 20 can be provided using at least one of an acid/base and an organic/inorganic metal salt.
- the phosphoric acid functional group (22) content is advantageously 0.5 mmol/g to 3.0 mmol/g.
- the phosphate-treated nano-cellulose 20 may be dispersed in water in an amount of 0.1 to 5% by weight.
- step (S20) of obtaining a second solution in which the carboxymethyl cellulose 30 to which the carboxymethyl group 32 is provided is dispersed in the nano-cellulose fiber 31 may be performed.
- the carboxymethyl group 32 of the carboxymethyl cellulose 30 an acid/base and an organic/inorganic metal salt may be used.
- the content of the carboxymethyl group 32 is advantageously between 0.5 and 3.0 mmol/g.
- the carboxymethyl cellulose 30 may be dispersed in water in an amount of 0.1 to 5% by weight.
- step (S40) of mixing the first solution and the second solution prepared through the above process may be performed, and thus an adhesive may be prepared (S50).
- a water jet mill For agitation and mixing of the first solution and the second solution, a water jet mill, a high-speed grinder, a grinder, a high-pressure homogenizer, a high-pressure impact mill, a ball mill, a bead mill, a disk-type refiner, a conical refiner, a twin-screw kneader , at least one of a vibrating mill, a homomixer under high-speed rotation, or a beater may be used.
- At least one step of adding the inorganic moisture absorbent 40 and/or the antibacterial agent 50 ( S30 ) before mixing the first solution and the second solution ( S40 ) may be further performed.
- Calcium chloride, lithium chloride, magnesium chloride, silica gel, etc. may be used as the desiccant 40 .
- the antimicrobial agent 50 may be an inorganic antimicrobial agent or an organic antimicrobial agent.
- the inorganic antibacterial agent a porous inorganic antibacterial agent on which a metal having antibacterial properties, for example, Ag, Cu or Zn is supported, may be used.
- a metal having antibacterial properties for example, Ag, Cu or Zn is supported.
- the organic antibacterial agent bronopol, phenylphenol or benzothiazoline may be used.
- FIG. 10 is a flowchart illustrating a process of obtaining a solution in which nano-cellulose is dispersed in the method of manufacturing an adhesive according to an embodiment of the present invention.
- step (S10) of obtaining the first solution in which the nano-cellulose 20 described above is dispersed will be described in more detail.
- a process (S11) of dissolving urea in a solvent (water) may be performed.
- the mixing ratio of water and urea is preferably in the range of 1:1 to 1:3 by weight.
- the dissolution process of urea is advantageously stirred in a temperature range of 30°C to 80°C.
- the amount of phosphoric acid added to the pulp is more preferably from 1:0.1 to 1:0.5 by weight.
- Urea should be at least twice the amount of phosphoric acid added to minimize fiber damage caused by phosphoric acid to obtain long-fiber nanocellulose.
- the pulp may be added and stirred (S13).
- pulp it is advantageous to put it in a state in which the reactable surface area is improved by using fibrillation, beating, or a mixer.
- the amount of pulp input relative to the solvent may be sufficient to fully impregnate the pulp.
- a heating reaction (carbamate-ester reaction) may be performed (S14).
- the reaction temperature is a temperature at which urea is thermally decomposed and the carbamate reaction can occur together, and is preferably in the range of 100°C to 250°C. More preferably, the reaction temperature range may be between 120°C and 200°C.
- the reaction time is preferably between 30 minutes and 4 hours.
- the critical temperature range is 100 ° C. to 50 ° C. If the temperature is below the minimum critical temperature, the carbamate reaction does not occur, and if the temperature is above the maximum critical temperature, thermal damage to the fiber occurs.
- distilled water at room temperature may be added and stirred to evenly dilute, followed by washing using a sieve. This process may proceed until the hydrogen ion concentration (pH) of the solution becomes neutral.
- the nano-cellulose 20 can be obtained through mechanical pulverization (S16).
- water jet mill high-speed grinder, grinder, high-pressure homogenizer, high-pressure impact mill, ball mill, bead mill, disc-type refiner, conical refiner, twin-screw kneader, vibrating mill, homomixer under high-speed rotation , an ultrasonic disperser, or at least one of a beater may be used.
- FIG. 11 is a flowchart illustrating a process of obtaining a solution in which carboxymethyl cellulose is dispersed in a method of manufacturing an adhesive according to an embodiment of the present invention.
- step (S20) of obtaining a second solution in which the carboxymethyl cellulose 30 is dispersed from above will be described in more detail.
- a solvent water
- pulp pulp
- sodium hydroxide NaOH
- IPA isopropyl alcohol
- the mixing ratio of IPA (Isopropyl alcohol) and the pulp may be from 15:1 by weight to 40:1 by weight.
- the mixing ratio of water and pulp is advantageously from 0.5:1 to 3:1 by weight.
- sodium chloroacetate may be added to the mixture obtained in the above process (S22).
- the mixing ratio of the mixed solution and Sodium Chloroacetate may be in the range of 10:1 to 50:1 by weight.
- the temperature range at which the heating reaction is performed may be between 35 °C and 90 °C. At this time, the temperature range may be more advantageous in the range of 50 °C to 80 °C.
- distilled water at room temperature may be added and stirred to evenly dilute, followed by washing using a sieve. This process may proceed until the hydrogen ion concentration (pH) of the solution becomes neutral.
- the pulp concentration is advantageously 0.1 to 3.0 weight (wt)%.
- the carboxymethyl cellulose 30 can be obtained through mechanical grinding (grinding grinding) (S26).
- At least one of a mixer, an ultrasonic disperser, or a beater may be used.
- Table 1 evaluates the adhesive strength of the adhesive according to an embodiment of the present invention described above.
- an example of an adhesive in which a vinyl acetate adhesive, nano cellulose (CNF), carboxymethyl cellulose (CMC), a desiccant and an antibacterial agent is selectively used is shown together.
- Table 2 evaluates the flame retardancy and antibacterial properties of the adhesive according to an embodiment of the present invention described above.
- a comparative example an example of a vinyl acetate (resin) adhesive and an adhesive in which nano cellulose (CNF), carboxymethyl cellulose (CMC), and a desiccant (LiCl) are selectively used are shown together.
- CNF nano cellulose
- CMC carboxymethyl cellulose
- LiCl desiccant
- Flame retardant and antibacterial evaluation Condition (drying temperature 105°C, 60 minutes) Flame retardant (number of samples 1 piece) KS F 2819 vinyl acetate resin Water-soluble adhesive (water 3: undiluted solution 7) Flame retardant class 3 (continuous combustion) CNF Acid introduction 2.7 mmol/g Flame Retardant Level 1 (after flame less than 1 second) CMC - Flame Retardant Level 3 (Afterflame 30 seconds) CNF + CMC 5:5 ratio blend Flame Retardant Level 1 (after flame less than 1 second) CNF + CMC + LiCl (20%) 5:5:2 ratio blend Flame Retardant Level 1 (after flame less than 1 second)
- flame-retardant grade 1 means a condition in which the carbonization length is 5 cm or less, the after-flame is 1 second or less, and there is no residual dust after 1 minute.
- an adhesive including a cellulose fiber, a structure including a dry adhesive layer, a total heat exchange device, and a method for manufacturing the same.
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Abstract
Description
난연성 및 항균성 평가 | ||
조건 (건조온도 105℃, 60분) |
난연성 (샘플 수 1개) | |
KS F 2819 | ||
초산 비닐 수지 | 수용성 접착제 (물 3:원액 7) | 방염 3급 (계속 연소) |
CNF | 산도입량 2.7 mmol/g | 방염 1급 (잔염 1초 이하) |
CMC | - | 방염 3급 (잔염 30초) |
CNF + CMC | 5:5 비율 혼합 | 방염 1급 (잔염 1초 이하) |
CNF + CMC + LiCl (20%) | 5:5:2 비율 혼합 | 방염 1급 (잔염 1초 이하) |
Claims (20)
- 물에 분산되는 고형분을 포함하는 접착제에 있어서,상기 고형분은,나노 셀룰로오스; 및카르복시 메틸기가 부여된 카르복시 메틸 셀룰로오스를 포함하는 것을 특징으로 하는 접착제.
- 제1항에 있어서, 상기 나노 셀룰로오스가 0.1 내지 5 중량%, 그리고 상기 카르복시 메틸 셀룰로오스가 0.1 내지 5 중량% 포함되는 것을 특징으로 하는 접착제.
- 제1항에 있어서, 무기계 흡습제를 더 포함하는 것을 특징으로 하는 접착제.
- 제3항에 있어서, 상기 무기계 흡습제는 염화칼슘, 염화리튬, 염화마그네슘, 및 실리카겔 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 접착제.
- 제3항에 있어서, 상기 무기계 흡습제가 0.1 내지 1 중량% 포함되는 것을 특징으로 하는 접착제.
- 제1항에 있어서, 항균제를 더 포함하는 것을 특징으로 하는 접착제.
- 제6항에 있어서, 상기 항균제는 Ag, Cu 또는 Zn 이 담지된 다공질 무기 항균제 또는 브로노 폴, 페닐페놀류 또는 벤조티아졸린류를 포함하는 유기 항균제 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 접착제.
- 제6항에 있어서, 상기 항균제가 0.1 내지 1 중량% 포함되는 것을 특징으로 하는 접착제.
- 제1항에 있어서, 상기 나노 셀룰로오스는 1 내지 50 nm 크기의 직경을 가지는 것을 특징으로 하는 접착제.
- 제1항에 있어서, 상기 나노 셀룰로오스에는 인산 작용기가 부여된 것을 특징으로 하는 접착제.
- 제10항에 있어서, 상기 인산 작용기 및 상기 카르복시 메틸기는 각각 0.5 내지 3.0 mmol/g의 비율로 부여되는 것을 특징으로 하는 접착제.
- 제1항에 있어서, 상기 카르복시 메틸 셀룰로오스는 상기 물이 접착 대상물로 번지는 현상을 방지하기 위한 것을 특징으로 하는 접착제.
- 제1항에 있어서, 상기 물의 함량은 88.0 내지 99.6 중량%인 것을 특징으로 하는 접착제.
- 제1 부재와 제2 부재 사이에 위치하는 건조 접착층을 포함하는 구조물에 있어서,상기 건조 접착층은,나노 셀룰로오스 15 내지 35 중량%, 및카르복시 메틸기가 부여된 카르복시 메틸 셀룰로오스 65 내지 85 중량%를 포함하는 것을 특징으로 하는 구조물.
- 제14항에 있어서, 상기 건조 접착층은 무기계 흡습제를 더 포함하는 것을 특징으로 하는 구조물.
- 제15항에 있어서, 상기 무기계 흡습제는 염화칼슘, 염화리튬, 염화마그네슘, 및 실리카겔 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 구조물.
- 제14항에 있어서, 상기 건조 접착층은 항균제를 더 포함하는 것을 특징으로 하는 구조물.
- 제17항에 있어서, 상기 항균제는 Ag, Cu 또는 Zn 이 담지된 다공질 무기 항균제 또는 브로노 폴, 페닐페놀류 또는 벤조티아졸린류를 포함하는 유기 항균제 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 구조물.
- 제14항에 있어서, 상기 나노 셀룰로오스에는 인산 작용기가 부여된 것을 특징으로 하는 구조물.
- 건조 접착층을 포함하는 전열교환소자에 있어서,제1 전열교환지;제2 전열교환지;상기 제1 전열교환지와 상기 제2 전열교환지 사이에 위치하는 건조 접착층을 포함하고,상기 건조 접착층은,나노 셀룰로오스 15 내지 35 중량%, 및카르복시 메틸기가 부여된 카르복시 메틸 셀룰로오스 65 내지 85 중량%를 포함하는 것을 특징으로 하는 전열교환소자.
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