CN117445497A - Preparation process of foamed aluminum-plastic composite template with multilayer structure - Google Patents
Preparation process of foamed aluminum-plastic composite template with multilayer structure Download PDFInfo
- Publication number
- CN117445497A CN117445497A CN202311364967.3A CN202311364967A CN117445497A CN 117445497 A CN117445497 A CN 117445497A CN 202311364967 A CN202311364967 A CN 202311364967A CN 117445497 A CN117445497 A CN 117445497A
- Authority
- CN
- China
- Prior art keywords
- parts
- temperature
- solution
- foaming
- aluminum plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 67
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000004033 plastic Substances 0.000 title claims abstract description 14
- 229920003023 plastic Polymers 0.000 title claims abstract description 14
- 238000005187 foaming Methods 0.000 claims abstract description 76
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 74
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910052751 metal Inorganic materials 0.000 claims abstract description 69
- 239000002184 metal Substances 0.000 claims abstract description 69
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000005219 brazing Methods 0.000 claims abstract description 57
- 238000002156 mixing Methods 0.000 claims abstract description 57
- 239000000945 filler Substances 0.000 claims abstract description 55
- 239000010410 layer Substances 0.000 claims abstract description 45
- 239000012792 core layer Substances 0.000 claims abstract description 38
- 239000000853 adhesive Substances 0.000 claims abstract description 33
- 230000001070 adhesive effect Effects 0.000 claims abstract description 33
- 239000004593 Epoxy Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 91
- 239000000243 solution Substances 0.000 claims description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 81
- 229910000679 solder Inorganic materials 0.000 claims description 69
- 239000002390 adhesive tape Substances 0.000 claims description 62
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 60
- 238000003756 stirring Methods 0.000 claims description 53
- 239000000203 mixture Substances 0.000 claims description 49
- 238000010438 heat treatment Methods 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 41
- 238000001035 drying Methods 0.000 claims description 39
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 34
- 239000004793 Polystyrene Substances 0.000 claims description 30
- 229920002223 polystyrene Polymers 0.000 claims description 30
- 235000019441 ethanol Nutrition 0.000 claims description 28
- 239000012745 toughening agent Substances 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 26
- DJUWPHRCMMMSCV-UHFFFAOYSA-N bis(7-oxabicyclo[4.1.0]heptan-4-ylmethyl) hexanedioate Chemical compound C1CC2OC2CC1COC(=O)CCCCC(=O)OCC1CC2OC2CC1 DJUWPHRCMMMSCV-UHFFFAOYSA-N 0.000 claims description 24
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 20
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 20
- 239000008098 formaldehyde solution Substances 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052718 tin Inorganic materials 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 11
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
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- 229910021641 deionized water Inorganic materials 0.000 claims description 8
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- 239000011259 mixed solution Substances 0.000 claims description 8
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- 150000002739 metals Chemical class 0.000 claims description 7
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- 238000002791 soaking Methods 0.000 claims description 7
- 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 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
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- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 6
- GTGTXZRPJHDASG-UHFFFAOYSA-N 2-bromooctanoic acid Chemical compound CCCCCCC(Br)C(O)=O GTGTXZRPJHDASG-UHFFFAOYSA-N 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 10
- 239000001569 carbon dioxide Substances 0.000 abstract description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 34
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- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 10
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 9
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- 125000004429 atom Chemical group 0.000 description 3
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- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 3
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
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- 230000002787 reinforcement Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007171 acid catalysis Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical group CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- UOBSVARXACCLLH-UHFFFAOYSA-N monomethyl adipate Chemical compound COC(=O)CCCCC(O)=O UOBSVARXACCLLH-UHFFFAOYSA-N 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
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- 230000035484 reaction time Effects 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
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- 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
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J125/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Adhesives based on derivatives of such polymers
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
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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
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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
- 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
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
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Abstract
The invention discloses a preparation process of a multi-layer structure foaming aluminum-plastic composite template, which comprises an epoxy PP blending and foaming core layer prepared by combining a supercritical carbon dioxide foaming mode, wherein a modified phenolic resin is used for reinforcing and toughening to prepare a composite aluminum plate, and the layers are mixed by adopting an adhesive and brazing filler metal.
Description
Technical Field
The invention belongs to the technical field of templates formed by casting concrete on a high polymer material and a frame, and particularly relates to a preparation process of a foaming template with a multilayer structure.
Background
Polyethylene has the advantages of light weight, no toxicity, good electrical insulation and mechanical properties as a foaming material, but has the defect of poor rebound resilience. In order to improve the properties of the polyethylene foam material, the improvement of the foaming process to obtain the material with good toughness and mechanical properties is the research focus of the invention.
Supercritical foaming forming technology is realized by introducing supercritical physical foaming agent (CO) 2 、N 2 And the like), and the porous composite material with uniform pore diameters of the cells is obtained after the nucleation and the growth of the cells. The introduction of air enables the inside of the material to present a continuous structure of the bubble wall-air-bubble wall, and the impedance matching property of the material and the air can be remarkably improved.
The aluminum plate is easy to generate deflection deformation, the aluminum plate is soft and easy to generate deflection deformation, and reinforcement and support are needed in design so as not to influence the stability of the whole structure. The mechanical properties are relatively poor, further toughening modification is needed, water-soluble phenolic resin is selected as toughening resin, and chemical modification treatment is generally carried out under the condition that the brittleness of the phenolic resin is relatively high.
In order to better exert the performances of the aluminum plate and the PP plastic plate, the template can be prepared by adopting multi-layer compounding so as to ensure that the bending strength, the bending elastic modulus, the surface hardness and the flatness of the template meet the building requirements, and the composite template has the fireproof and moistureproof performances of the aluminum template and has the advantage of light weight. Microcellular foaming of PP sheet materials has a smaller cell size and higher cell density than conventional foams. In addition, the foaming plate and the compact metal are compounded to form a composite member with a rigid metal outer layer and multiple functions, so that the multifunctional characteristics of the composite member are expected to be fully exerted, and therefore, the technical problems are needed to be solved, and the preparation method of the composite foaming template with the multilayer structure and the aluminum plastic multiple materials, which has good impact resistance and strong interlayer adhesion, is provided.
Disclosure of Invention
Aiming at the problems, the invention provides a preparation process of a multi-layer structure foaming aluminum-plastic composite template.
The specific preparation process is as follows:
(1) Preparation of a foaming material: weighing 20-30 parts of epoxy resin, dispersing the epoxy resin in 100 parts of mixed solution of deionized water and 3:1 of ethanol, firstly, placing the epoxy resin solution in a hot blast dryer at 80 ℃ for drying until the water content is lower than 40%, placing a PP material in the hot blast dryer at 80 ℃ for drying for 2 hours, carrying out blending extrusion on the PP and the epoxy material, wherein the blending time is 30 minutes, the screw speed is 70-100r/min, the temperature is 120-150 ℃, then placing a sample in a fixed die, tabletting the sample by a flat vulcanizing machine, and preparing a sheet with the thickness of 1mm, wherein the temperature is set to 180-185 ℃ and the pressure maintaining time is 10 minutes;
(2) Supercritical CO 2 Foaming: firstly, circulating water of a low-temperature constant-temperature tank is opened to control the temperature in the autoclave at 45 ℃, preheating is carried out for 30min in advance, then the sheet is put into the autoclave, and liquid CO is ensured after the autoclave body is sealed 2 Introducing into a kettle, maintaining for 5min, and releasing gasCO with constant pressure fluid pump 2 Pumping into a kettle body, controlling the pressure to be 20MPa, soaking the sample in CO under the state 2 48h, rapidly decompressing and opening the kettle, placing the sample into an oil bath pot with the temperature of 100 ℃ for foaming for 60s, rapidly placing the foamed sample into ice water for cooling and shaping to obtain a foaming core layer of the epoxy mixed PP with stable cell structure;
wherein the epoxy resin is bis ((3, 4-epoxycyclohexyl) methyl) adipate;
(3) And (3) thermally coating a reinforcing and toughening layer on the aluminum plate: polishing an aluminum plate until the roughness is Ra0.5-0.8μm, respectively washing the aluminum plate with acetone and absolute ethyl alcohol for 5-10min, and drying for later use; drying the modified phenolic resin until the water content is 20%, simultaneously feeding the dried modified phenolic resin and the metal plate into the middle of an upper covering roller and a lower covering roller, carrying out hot covering on the upper and lower rollers at 250 ℃ and 0.5Mpa for 30s, and carrying out hot covering on the surface of the aluminum plate to strengthen the reinforcing layer;
the preparation process of the modified phenolic resin comprises the following steps: weighing 10-16 parts of phenol, heating to melt at a constant water bath temperature of 50 ℃, adding 16-25 parts of 50% sodium hydroxide solution, reacting for 30min, adding 20-32 parts of formaldehyde solution, and reacting for 50min at a water bath temperature of 60 ℃; adding 8-13 parts of 50% sodium hydroxide solution, and reacting for 30min at the water bath temperature of 70 ℃; finally adding 5-8 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 1.5-2 parts of modified solution, raising the water bath temperature to 85 ℃ for reacting for 140min, and then rapidly cooling to obtain modified phenolic resin;
Wherein the modifying solution is a solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water; wherein the flame retardant modifying substance is (+) -B-methoxy diisopinobronamble camphorborane;
(4) Preparation of the adhesive: stirring 50-60 parts of polystyrene particles and 20-30 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; stirring 5-8 parts of methyl methacrylate in a polystyrene solution and a toughening agent solution in a stirrer at a speed of 25-45r/min for 20min to uniformly mix the components to prepare the binder;
the toughening agent solution is prepared by uniformly stirring 25-30 parts of dibutyl phthalate and 15-19 parts of 2-bromomethyl octoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 3-6 parts of acetone and 10-12 parts of ethanol, and uniformly stirring to obtain the toughening agent solution;
(5) And (3) preparing adhesive tape solder: grinding the cleaned and dried coffee grounds at 350-400rpm for 10min to refine the particles of the strengthening phase; finally, heating to 800 ℃ at the speed of 10-15 ℃/min, and sintering for 2 hours for standby; mixing Sn, ag and Zn and sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.2 parts of solder powder and 8 parts of adhesive, uniformly stirring to obtain paste solder, and drying in a 50-80 ℃ oven for 3 hours to remove volatile elements;
Preferably, the Sn, the Ag and the Zn are mixed with the sintered coffee grounds according to the mass ratio of 10:7:3:0.05;
(6) Combining the cleaned foaming core layer and the composite aluminum plate by adopting adhesive tape solder: the adhesive tape brazing filler metal is respectively coated on a PP foaming core layer in a spot mode, the interval between the adhesive tape brazing filler metals is 2mm, the composite aluminum plate is arranged above the adhesive tape brazing filler metal, the PP foaming core layer is arranged below the adhesive tape brazing filler metal, the adhesive tape brazing filler metal is coated on the other surface of the PP foaming core layer in a spot mode, the bottommost layer is the composite aluminum plate, a five-layer structure is formed, the composite aluminum plate is fixed, the composite aluminum plate is heated to 250-300 ℃ at the heating speed of 8-10 ℃/min, the temperature is kept for 6-12min, vacuumizing is conducted to be below 8 x 10 < -2 > Pa, the pressure of 0.5-0.8MPa is applied to the two sides, after the adhesive tape brazing filler metal is subjected to leveling solidification, the temperature is raised to 350 ℃ again, the pressure of 2MPa is applied, after the heat preservation is conducted for 5min, liquid nitrogen is introduced for quenching, and the composite multi-layer foaming template is obtained.
The invention has the beneficial effects that:
1) The multi-layer structure foaming template prepared by the invention comprises an epoxy PP blending method, and is combined with a foaming core layer prepared by a supercritical carbon dioxide foaming mode to obtain a foaming core layer with high cell density and good rebound resilience and toughness, and the modified phenolic resin is used for reinforcing and toughening to prepare the composite aluminum plate, and the components and the process of the toughening agent in the adhesive are improved by adopting a mode of mixing the adhesive and the brazing filler metal between the layers, and the wettability of the brazing filler metal is improved by combining sintered coffee grounds, so that the obtained composite foaming template has firm interlayer connection, good impact resistance, light texture and multifunction.
2) The invention adopts the blending of the bis ((3, 4-epoxycyclohexyl) methyl) adipate and the PP material in the supercritical CO 2 In addition, the carbon dioxide has a certain plasticizing effect on the polymer, so that the glass transition temperature and the melting temperature of the polymer can be reduced, the polymer is easier to foam, and a certain influence is generated on the structure and the performance of a foaming material, which is also the reason for taking the supercritical carbon dioxide as the foaming agent. The foaming mode of the supercritical carbon dioxide can overcome the defect that the traditional foaming agent is not resistant to high temperature, under the conditions of the reaction temperature and the reaction time, the supercritical fluid has higher solubility and faster diffusion rate in the polymer, the foam cell material with higher cell density and smaller cell size can be obtained by foaming the fluid, and the foaming process is environment-friendly and can be recycled.
3) The hydrophilic groups and the lipophilic groups at the two ends of the acid ester substance in the bis ((3, 4-epoxycyclohexyl) methyl) adipate can be better compounded with the PP material in the foaming process, the surface energy of the system is reduced, the interfacial tension of the wall of the foam hole is increased, the expansion speed of the air holes is slowed down, and the excessive expansion of the air holes is restrained, so that the situation that the size distribution of the air holes is uneven due to the fact that the air holes are mutually communicated to form the air holes can be reduced.
4) The epoxy groups in the bis ((3, 4-epoxycyclohexyl) methyl) adipate lead the PP material to have good crosslinking capability and chemical resistance; wherein the epoxy cyclohexyl is formed by substituting hydrogen atoms on cyclohexane ring, and the structure ensures that the epoxy cyclohexyl has better flexibility and impact resistance; the segments of methyl adipate make it ductile and plastic. The bis ((3, 4-epoxycyclohexyl) methyl) adipate has stable chemical property and long-chain branches, is more tightly entangled among molecular chains, and can increase the movement resistance of PP molecular chain segments by blending with PP, thereby effectively enhancing the melt strength of the PP and further improving the foaming property of the PP. The proper amount of the foaming temperature and time can increase the diameter of the foam cells and reduce the density of the foam cells, but the excessive foaming time can lead to the rupture of the foam cells, so that the increase of the bis ((3, 4-epoxycyclohexyl) methyl) adipate can reduce the diameter of the foam cells of the material and improve the density of the foam cells, and the foam material with better rebound resilience and toughness.
5) The active hydroxyl contained in the 2, 3-dihydroxyl-1, 4-phthalic acid structure is easy to generate dehydration condensation reaction with phenolic hydroxyl or hydroxymethyl in the phenolic resin, and then the phenolic and aldehyde functional groups in the phenolic resin generate condensation reaction through acid catalysis of the 2, 3-dihydroxyl-1, 4-phthalic acid to form a polymer with a three-dimensional network structure, so that the toughness of the phenolic resin is improved. The compressive strength and viscosity of the modified phenolic resin are increased along with the increase of the addition amount of the 2, 3-dihydroxyl-1, 4-phthalic acid, the water absorption rate is reduced along with the increase of the addition amount of the 2, 3-dihydroxyl-1, 4-phthalic acid, and the solid content is slightly increased along with the increase of the addition amount of the 2, 3-dihydroxyl-1, 4-phthalic acid. Meanwhile, 2, 3-dihydroxyl-1, 4-phthalic acid reacts with the end groups of the phenolic resin, so that phenolic hydroxyl hydrophilic groups are consumed, and the water absorption of the phenolic resin is reduced. If excessive modifying solution is added, the resin solution is easy to gel in the synthesis process, the viscosity is increased, and the synthesis process is difficult to control.
6) The (+) -B-methoxy diisopinobornyl borane can firstly remarkably improve the flame retardant property of the phenolic resin, so that the flame retardance of the composite metal plate is improved, and the introduction of the boron group can improve the thermal stability of the phenolic resin, so that the phenolic resin can keep better performance in a high-temperature environment; the (+) -B-methoxy diisopinus camphoryl borane can absorb heat and form a more stable carbonized layer, so that the thermal decomposition of the resin is delayed, the heat resistance is improved, the strength, the hardness and the wear resistance of the material are improved to a certain extent, the mechanical strength and the comprehensive performance of the phenolic resin are improved, the phenolic resin has better oxidation resistance due to the introduction of the (+) -B-methoxy diisopinus camphoryl borane, the service life of the material is prolonged, the friction and the wear between metal plates can be reduced due to the introduction of the boron group, the wear and the heat generation are reduced, and the service life of bonding is prolonged.
7) Meanwhile, 2, 3-dihydroxyl-1, 4-phthalic acid can also react with phenolic groups in the phenolic resin to increase the crosslinking density and the number of intermolecular bonds of the phenolic resin, thereby further improving the thermal stability of the phenolic resin. Therefore, the synergistic use of the two compounds in the phenolic resin can obviously improve the oxidation resistance and the thermal stability of the phenolic resin, so as to improve the surface hardness and the wear resistance of the aluminum plate and improve the thermal stability of the aluminum plate.
8) According to the toughening agent disclosed by the invention, the toughness of the material is improved by adding the methyl 2-bromooctoate, heating and heat-preserving and activating twice and increasing the inter-molecular chain distance and the molecular chain mobility of the material, so that the adhesive tape brazing filler metal is regulated, and the problems that the adhesive tape brazing filler metal which is too fragile is easy to break, brazing defects are generated, or the joint parts cannot be aligned due to too soft, the brazing seam width is inconsistent and the like are avoided.
9) The Zn skeleton in the brazing filler metal can shorten the movement distance required by the reaction of Zn atoms and Sn atoms in the welding seam, reduce the time required by welding, reduce the energy consumption of enterprises, realize the low-temperature quick connection of welding spots of the composite structure, ensure that the interface connection of the foaming plates of the multi-layer composite structure is good, and form firm metal bonds; according to Sn: ag: zn: the sintered coffee grounds are 10:7:3:0.05, the brazing filler metal components in the proportion are uniform, the service performance is stable, segregation and volatilization phenomena are few during selective use, the wettability of the Sn-Ag-Zn brazing filler metal is improved by improving the methyl 2-bromooctoate in the adhesive, the adhesive and the coffee grounds have stronger intermolecular acting force due to the characteristic of the methyl 2-bromooctoate structure, the coffee grounds are easily adsorbed to the grain boundary, the gas-liquid surface tension is reduced, the wettability is increased, meanwhile, the diffusion of Sn and Zn metal atoms is reduced, and because of the chemical inertia of the coffee grounds, the coffee grounds can serve as heterogeneous nuclear points in the brazing filler metal, thereby easily forming expansion dislocation, refining the interface structure of the brazing filler metal, playing a second-phase strengthening role, further preventing effective transmission of cracks when the welding spots generate cracks, preventing further expansion of the cracks, increasing the shearing strength of the brazing filler metal, and the composite multilayer structure has light weight and multiple functions.
10 The adhesive tape brazing filler metal is self-leveling cured in the process of preparing the composite board, a brazing filler metal layer with a certain thickness is uniformly formed by semi-curing, pressurizing, heating, combining and quenching again, further enhancing the curing degree, avoiding the bad phenomenon of debonding, and enhancing the adhesion and strength between the composite boards.
Detailed Description
The present invention will be described in further detail with reference to examples.
The materials or chemicals used in the examples of the present invention, unless otherwise specified, were obtained by conventional commercial means.
Example 1
1. Preparation of a foaming material: weighing 25 parts of bis ((3, 4-epoxycyclohexyl) methyl) adipate, dispersing in 100 parts of mixed solution of deionized water and ethanol at a speed of 3:1, firstly, placing the bis ((3, 4-epoxycyclohexyl) methyl) adipate solution in a hot blast dryer at 80 ℃ for drying until the water content is lower than 40%, placing a PP material in the hot blast dryer at 80 ℃ for drying for 2 hours, uniformly mixing the dried PP with the bis ((3, 4-epoxycyclohexyl) methyl) adipate and other mass in a Hake micro extruder for blending extrusion, wherein the blending time is 30min, the screw rotating speed is 85r/min, the temperature is 135 ℃, then placing a sample in a fixed die, tabletting by a vulcanizing press, setting the temperature to 182 ℃ and the dwell time to be 10min, and preparing a sheet with a thickness of 1 mm;
2. Supercritical CO 2 Foaming: firstly, circulating water of a low-temperature constant-temperature tank is opened to control the temperature in the autoclave at 45 ℃, preheating is carried out for 30min in advance, then the sheet is put into the autoclave, and liquid CO is ensured after the autoclave body is sealed 2 Introducing into a kettle, maintaining for 5min, releasing gas, and pumping CO with constant pressure fluid pump 2 Pumping into a kettle body, controlling the pressure to be 20MPa, soaking the sample in CO under the state 2 48 h, rapidly decompressing and opening the kettle, putting the sample into an oil bath pot with the temperature of 100 ℃ for foaming for 60 seconds, and rapidly putting the foamed sample into ice water for cooling and shaping to obtain a foaming core layer of the epoxy mixed PP with stable foam cell structure;
3. modified phenolic resin: 13 parts of phenol is weighed, the water bath temperature is constant at 50 ℃, the mixture is heated to be molten, 20 parts of 50% sodium hydroxide solution is added for reaction for 30min, then 26 parts of formaldehyde solution is added, and the water bath temperature is increased to 60 ℃ for reaction for 50min; then 10 parts of 50% sodium hydroxide solution is added, and the reaction is carried out for 30min under the condition that the water bath temperature is 70 ℃; finally, adding 6 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 1.8 parts of solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water, raising the temperature of a water bath to 85 ℃ for reacting for 140min, finally, rapidly adding 10 parts of (+) -B-methoxy diisopinus camphoryl borane into the mixture, reacting for 3h at the temperature of 135 ℃ after the addition, and rapidly cooling to obtain the modified phenolic resin;
4. And (3) thermally coating a reinforcing and toughening layer on the aluminum plate: polishing the aluminum plate until the roughness is Ra0.6mu.m, respectively cleaning the aluminum plate with acetone and absolute ethyl alcohol for 8min, and drying for later use; drying the modified phenolic resin until the water content is 20%, simultaneously feeding the dried modified phenolic resin and the metal plate into the middle of an upper covering roller and a lower covering roller, wherein the upper roller and the lower roller are at 250 ℃ and 0.5Mpa, and the time is 30s, and covering a toughening reinforcing layer on the surface of the aluminum plate;
5. preparation of the adhesive: stirring 55 parts of polystyrene particles and 25 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; the toughening agent solution is prepared by uniformly stirring 28 parts of dibutyl phthalate and 17 parts of methyl 2-bromooctoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 5 parts of acetone and 11 parts of ethanol, and uniformly stirring; stirring a polystyrene solution, a toughening agent solution and 6 parts of methyl methacrylate in a stirrer at a speed of 35r/min for 20min to uniformly mix the components to prepare the adhesive;
6. and (3) preparing adhesive tape solder: placing the cleaned and dried coffee grounds into a ball mill, and grinding for 10 minutes at 380rpm to refine the reinforced phase particles; finally, placing the mixture into a vacuum tube furnace, heating to 800 ℃ at a speed of 12 ℃/min, and sintering for 2 hours for standby; mixing the prepared Sn, ag, zn and the sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.2 parts of solder powder and 8 parts of adhesive according to the mass ratio of 10:7:3:0.05, uniformly mixing and stirring 80.2 parts of solder powder to obtain paste solder, and placing the paste solder in a 65 ℃ oven for drying for 3 hours to remove volatile elements;
7. Combining the cleaned foaming core layer and the composite aluminum plate by adopting adhesive tape solder: the adhesive tape brazing filler metal is respectively coated on the PP foam core layer in a spot mode, the interval between the adhesive tape brazing filler metals is 2mm, the composite aluminum plate is arranged above the coated adhesive tape brazing filler metal, the PP foam core layer is arranged below the adhesive tape brazing filler metal, the adhesive tape brazing filler metal is coated on the other surface of the PP foam core layer in a spot mode, the bottommost layer is the composite aluminum plate, a five-layer structure is formed and fixed, the composite aluminum plate is heated to 280 ℃ at the heating speed of 9 ℃/min, heat preservation is carried out for 8min, vacuumizing is carried out until the pressure of 0.6MPa is applied to the two sides of the composite aluminum plate, after the adhesive tape brazing filler metal is leveled and solidified, the temperature is raised to 350 ℃ again, the pressure of 2MPa is applied, and after heat preservation is carried out for 5min, liquid nitrogen is introduced for quenching, and the composite multi-layer foaming template is obtained.
Example 2
1. Preparation of a foaming material: weighing 20 parts of bis ((3, 4-epoxycyclohexyl) methyl) adipate, dispersing in 100 parts of mixed solution of deionized water and ethanol at a speed of 3:1, firstly, placing the bis ((3, 4-epoxycyclohexyl) methyl) adipate solution in a hot blast dryer at 80 ℃ for drying until the water content is lower than 40%, placing a PP material in the hot blast dryer at 80 ℃ for drying for 2 hours, uniformly mixing the dried PP with the bis ((3, 4-epoxycyclohexyl) methyl) adipate and other mass in a Hake micro extruder for blending extrusion, wherein the blending time is 30min, the screw rotating speed is 100r/min, the temperature is 120 ℃, then placing a sample in a fixed die, tabletting by a vulcanizing press, setting the temperature to 180 ℃ and the dwell time to be 10min, and preparing a sheet with a thickness of 1 mm;
2. Supercritical CO 2 Foaming: firstly, circulating water of a low-temperature constant-temperature tank is opened to control the temperature in the autoclave at 45 ℃, preheating is carried out for 30min in advance, then the sheet is put into the autoclave, and liquid CO is ensured after the autoclave body is sealed 2 Introducing into a kettle, maintaining for 5min, releasing gas, and pumping CO with constant pressure fluid pump 2 Pumping into a kettle body, controlling the pressure to be 20MPa, soaking the sample in CO under the state 2 48 h, rapidly decompressing and opening the kettle, putting the sample into an oil bath pot with the temperature of 100 ℃ for foaming for 60 seconds, and rapidly putting the foamed sample into ice water for coolingSetting to obtain a foaming core layer of the epoxy mixed PP with stable cell structure;
3. modified phenolic resin: weighing 10 parts of phenol, heating to melt at the water bath temperature of 50 ℃, adding 16 parts of 50% sodium hydroxide solution, reacting for 30min, adding 32 parts of formaldehyde solution, and reacting for 50min at the water bath temperature of 60 ℃; then 8 parts of 50% sodium hydroxide solution is added, and the reaction is carried out for 30min under the condition that the water bath temperature is 70 ℃; finally, adding 8 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 1.5 parts of solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water, raising the temperature of a water bath to 85 ℃ for reacting for 140min, finally, rapidly adding 12 parts of (+) -B-methoxy diisopinus camphoryl borane into the mixture, reacting for 1h at the temperature of 120 ℃ after the addition, and rapidly cooling to obtain the modified phenolic resin;
4. And (3) thermally coating a reinforcing and toughening layer on the aluminum plate: polishing the aluminum plate until the roughness is Ra0.8μm, respectively cleaning the aluminum plate with acetone and absolute ethyl alcohol for 5min, and drying for later use; drying the modified phenolic resin until the water content is 20%, simultaneously feeding the dried modified phenolic resin and the metal plate into the middle of an upper covering roller and a lower covering roller, carrying out hot covering on the upper covering roller and the lower covering roller at 250 ℃ and 0.5Mpa for 30s, and covering a toughening reinforcing layer on the surface of the aluminum plate;
5. preparation of the adhesive: stirring 60 parts of polystyrene particles and 20 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; the toughening agent solution is prepared by uniformly stirring 30 parts of dibutyl phthalate and 19 parts of 2-bromomethyl octanoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 3 parts of acetone and 12 parts of ethanol, and uniformly stirring; stirring a polystyrene solution, a toughening agent solution and 5 parts of methyl methacrylate in a stirrer at a speed of 45r/min for 20min to uniformly mix the components to prepare the adhesive;
6. and (3) preparing adhesive tape solder: placing the cleaned and dried coffee grounds into a ball mill, and grinding for 10min at 400rpm to refine the reinforced phase particles; finally, placing the mixture into a vacuum tube furnace, heating to 800 ℃ at a speed of 10 ℃/min, and sintering for 2 hours for standby; mixing the prepared Sn, ag, zn and the sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.2 parts of solder powder and 8 parts of adhesive according to the mass ratio of 10:7:3:0.05, uniformly mixing and stirring 80.2 parts of solder powder to obtain paste solder, and placing the paste solder in a 50 ℃ oven for drying for 3 hours to remove volatile elements;
7. Combining the cleaned foaming core layer and the composite aluminum plate by adopting adhesive tape solder: the adhesive tape brazing filler metal is respectively coated on the PP foam core layer in a spot mode, the interval between the adhesive tape brazing filler metals is 2mm, the composite aluminum plate is arranged above the coated adhesive tape brazing filler metal, the PP foam core layer is arranged below the adhesive tape brazing filler metal, the adhesive tape brazing filler metal is coated on the other surface of the PP foam core layer in a spot mode, the bottommost layer is the composite aluminum plate, a five-layer structure is formed, the composite aluminum plate is fixed, the composite aluminum plate is heated to 250 ℃ at the heating speed of 8 ℃/min, heat preservation is carried out for 12min, vacuumizing is carried out until the pressure of 0.5MPa is applied to the two sides of the composite aluminum plate, after the adhesive tape brazing filler metal is leveled and solidified, the temperature is raised to 350 ℃ again, the pressure of 2MPa is applied, heat preservation is carried out for 5min, and liquid nitrogen is introduced for quenching, so that the composite multi-layer foaming template is obtained.
Example 3
1. Preparation of a foaming material: weighing 30 parts of bis ((3, 4-epoxycyclohexyl) methyl) adipate, dispersing in 100 parts of mixed solution of deionized water and ethanol at a speed of 3:1, firstly, placing the bis ((3, 4-epoxycyclohexyl) methyl) adipate solution in a hot blast dryer at 80 ℃ for drying until the water content is lower than 40%, placing a PP material in the hot blast dryer at 80 ℃ for drying for 2 hours, uniformly mixing the dried PP with the bis ((3, 4-epoxycyclohexyl) methyl) adipate and other mass in a Hake micro extruder for blending extrusion, wherein the blending time is 30min, the screw rotating speed is 700r/min, the temperature is 150 ℃, then placing a sample in a fixed die, tabletting by a vulcanizing press, setting the temperature to 185 ℃ and the pressure maintaining time to be 10min, and preparing a sheet with a thickness of 1 mm;
2. Supercritical CO 2 Foaming: firstly, circulating water of a low-temperature constant-temperature tank is opened to control the temperature in the autoclave at 45 ℃, preheating is carried out for 30min in advance, then the sheet is put into the autoclave, and liquid CO is ensured after the autoclave body is sealed 2 Introducing into a kettle, maintaining for 5min, releasing gas, and using constant pressure fluid pumpCO is processed by 2 Pumping into a kettle body, controlling the pressure to be 20MPa, soaking the sample in CO under the state 2 48h, rapidly decompressing and opening the kettle, placing the sample into an oil bath pot with the temperature of 100 ℃ for foaming for 60s, rapidly placing the foamed sample into ice water for cooling and shaping to obtain a foaming core layer of the epoxy mixed PP with stable cell structure;
3. modified phenolic resin: weighing 16 parts of phenol, heating to melt at a constant water bath temperature of 50 ℃, adding 25 parts of 50% sodium hydroxide solution, reacting for 30min, then adding 20 parts of formaldehyde solution, and reacting for 50min at a water bath temperature of 60 ℃; 13 parts of 50% sodium hydroxide solution is added, and the reaction is carried out for 30min under the condition that the water bath temperature is 70 ℃; finally, adding 5 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 2 parts of solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water, raising the water bath temperature to 85 ℃ for reacting for 140min, finally, rapidly adding 8 parts of (+) -B-methoxy diisopinus camphoryl borane into the mixture, reacting for 5h at the temperature of 150 ℃ after the addition, and rapidly cooling to obtain modified phenolic resin;
4. And (3) thermally coating a reinforcing and toughening layer on the aluminum plate: polishing the aluminum plate until the roughness is Ra0.5mu m, respectively cleaning the aluminum plate with acetone and absolute ethyl alcohol for 10min, and drying for later use; drying the modified phenolic resin until the water content is 20%, simultaneously feeding the dried modified phenolic resin and the metal plate into the middle of an upper covering roller and a lower covering roller, carrying out hot covering on the upper covering roller and the lower covering roller at 250 ℃ and 0.5Mpa for 30s, and covering a toughening reinforcing layer on the surface of the aluminum plate;
5. preparation of the adhesive: stirring 50 parts of polystyrene particles and 30 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; the toughening agent solution is prepared by uniformly stirring 25 parts of dibutyl phthalate and 19 parts of methyl 2-bromooctoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 6 parts of acetone and 10 parts of ethanol, and uniformly stirring; stirring a polystyrene solution, a toughening agent solution and 8 parts of methyl methacrylate in a stirrer at a speed of 25r/min for 20min to uniformly mix the components to prepare the adhesive;
6. and (3) preparing adhesive tape solder: placing the cleaned and dried coffee grounds into a ball mill, and grinding for 10min at a speed of 350rpm to refine the reinforced phase particles; finally, placing the mixture into a vacuum tube furnace, heating to 800 ℃ at a speed of 15 ℃/min, and sintering for 2 hours for standby; mixing the prepared Sn, ag, zn and the sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.2 parts of solder powder and 8 parts of adhesive according to the mass ratio of 10:7:3:0.05, uniformly mixing and stirring 80.2 parts of solder powder to obtain paste solder, and placing the paste solder in an oven at 80 ℃ for drying for 3 hours to remove volatile elements;
7. Combining the cleaned foaming core layer and the composite aluminum plate by adopting adhesive tape solder: the adhesive tape brazing filler metal is respectively coated on the PP foam core layer in a spot mode, the interval between the adhesive tape brazing filler metals is 2mm, the composite aluminum plate is arranged above the coated adhesive tape brazing filler metal, the PP foam core layer is arranged below the adhesive tape brazing filler metal, the adhesive tape brazing filler metal is coated on the other surface of the PP foam core layer in a spot mode, the bottommost layer is the composite aluminum plate, a five-layer structure is formed and fixed, the composite aluminum plate is heated to 300 ℃ at the heating speed of 10 ℃/min, heat preservation is carried out for 8min, vacuumizing is carried out to below 8 multiplied by 10 < -2 > Pa, pressure of 0.8MPa is applied to two sides, after the adhesive tape brazing filler metal is leveled and solidified, the temperature is raised to 350 ℃ again, the pressure of 2MPa is applied, after heat preservation is carried out for 5min, liquid nitrogen is introduced for quenching, and the composite multi-layer foaming template is obtained.
Comparative example 1
The comparative example differs from example 1 in that foaming was performed without blending the epoxy material and PP material, and the specific steps are:
1. preparation of a foaming material: drying the PP material in a hot blast dryer at 80 ℃ for 2 hours, stirring the dried PP material in a Hake micro extruder for 30 minutes at a screw speed of 85r/min and a temperature of 135 ℃, then placing the sample in a fixed die, tabletting the sample by a flat vulcanizing machine, setting the temperature at 182 ℃ and the pressure maintaining time at 10 minutes, and preparing a sheet with the thickness of 1 mm;
2. Supercritical CO 2 Foaming: firstly, circulating water of a low-temperature constant-temperature tank is opened to control the temperature in the autoclave at 45 ℃, preheating is carried out for 30min in advance, then the sheet is put into the autoclave, and liquid CO is ensured after the autoclave body is sealed 2 Introducing into a kettle, holding for 5min, and releasingGas, followed by CO using constant pressure fluid pump 2 Pumping into a kettle body, controlling the pressure to be 20MPa, soaking the sample in CO under the state 2 48h, rapidly decompressing and opening the kettle, putting the sample into an oil bath pot with the temperature of 100 ℃ for foaming for 60s, and rapidly putting the foamed sample into ice water for cooling and shaping to obtain a PP foaming core layer;
3. modified phenolic resin: 13 parts of phenol is weighed, the water bath temperature is constant at 50 ℃, the mixture is heated to be molten, 20 parts of 50% sodium hydroxide solution is added for reaction for 30min, then 26 parts of formaldehyde solution is added, and the water bath temperature is increased to 60 ℃ for reaction for 50min; then 10 parts of 50% sodium hydroxide solution is added, and the reaction is carried out for 30min under the condition that the water bath temperature is 70 ℃; finally, adding 6 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 1.8 parts of solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water, raising the temperature of a water bath to 85 ℃, reacting for 140min, finally, rapidly adding 10 parts of (+) -B-methoxy diisopinus camphoryl borane into the mixture, reacting for 3h at the temperature of 135 ℃ after the addition, and rapidly cooling to obtain modified phenolic resin;
4. And (3) thermally coating a reinforcing and toughening layer on the aluminum plate: polishing the aluminum plate until the roughness is Ra0.6mu.m, respectively cleaning the aluminum plate with acetone and absolute ethyl alcohol for 8min, and drying for later use; drying the modified phenolic resin until the water content is 20%, simultaneously feeding the dried modified phenolic resin and the metal plate into the middle of an upper covering roller and a lower covering roller, carrying out hot covering on the upper covering roller and the lower covering roller at 250 ℃ and 0.5Mpa for 30s, and covering a toughening reinforcing layer on the surface of the aluminum plate;
5. preparation of the adhesive: stirring 55 parts of polystyrene particles and 25 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; the toughening agent solution is prepared by uniformly stirring 28 parts of dibutyl phthalate and 17 parts of methyl 2-bromooctoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 5 parts of acetone and 11 parts of ethanol, and uniformly stirring; stirring a polystyrene solution, a toughening agent solution and 6 parts of methyl methacrylate in a stirrer at a speed of 35r/min for 20min to uniformly mix the components to prepare the adhesive;
6. and (3) preparing adhesive tape solder: placing the cleaned and dried coffee grounds into a ball mill, and grinding for 10 minutes at 380rpm to refine the reinforced phase particles; finally, placing the mixture into a vacuum tube furnace, heating to 800 ℃ at a speed of 12 ℃/min, and sintering for 2 hours for standby; mixing the prepared Sn, ag, zn and the sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.2 parts of solder powder and 8 parts of adhesive according to the mass ratio of 10:7:3:0.05, uniformly mixing and stirring 80.2 parts of solder powder to obtain paste solder, and placing the paste solder in a 65 ℃ oven for drying for 3 hours to remove volatile elements;
7. Combining the cleaned foaming core layer and the composite aluminum plate by adopting adhesive tape solder: the adhesive tape brazing filler metal is respectively coated on the PP foam core layer in a spot mode, the interval between the adhesive tape brazing filler metals is 2mm, the composite aluminum plate is arranged above the coated adhesive tape brazing filler metal, the PP foam core layer is arranged below the adhesive tape brazing filler metal, the adhesive tape brazing filler metal is coated on the other surface of the PP foam core layer in a spot mode, the bottommost layer is the composite aluminum plate, a five-layer structure is formed and fixed, the composite aluminum plate is heated to 280 ℃ at the heating speed of 9 ℃/min, heat preservation is carried out for 8min, vacuumizing is carried out until the pressure of 0.6MPa is applied to the two sides of the composite aluminum plate, after the adhesive tape brazing filler metal is leveled and solidified, the temperature is raised to 350 ℃ again, the pressure of 2MPa is applied, and after heat preservation is carried out for 5min, liquid nitrogen is introduced for quenching, and the composite multi-layer foaming template is obtained.
Comparative example 2
This comparative example differs from example 1 in that the epoxy material is propylene oxide and the remaining embodiments are the same as example 1.
Comparative example 3
The comparative example differs from example 1 in the amount of epoxy substance added, and the preparation of a specific foaming material was: 50 parts of bis ((3, 4-epoxycyclohexyl) methyl) adipate is weighed and dispersed in 100 parts of mixed solution of deionized water and ethanol with the speed of 3:1, firstly, the bis ((3, 4-epoxycyclohexyl) methyl) adipate solution is placed in a hot blast dryer at the temperature of 80 ℃ to be dried until the water content is lower than 40%, a PP material is placed in the hot blast dryer at the temperature of 80 ℃ to be dried for 2 hours, the dried PP and the bis ((3, 4-epoxycyclohexyl) methyl) adipate with the same mass are uniformly mixed in a Hak micro extruder for blending extrusion, wherein the blending time is 30min, the screw rotating speed is 85r/min, the temperature is 135 ℃, then a sample is placed in a fixed die, the sample is subjected to tabletting treatment by a flat vulcanizing machine, the temperature is 182 ℃ and the pressure maintaining time is 10min, and a sheet with the thickness of 1mm is prepared; the rest of the embodiments are the same as in example 1.
Comparative example 4
The comparative example differs from example 1 in the amount of epoxy substance added, and the preparation of a specific foaming material was: weighing 5 parts of bis ((3, 4-epoxycyclohexyl) methyl) adipate, dispersing in 100 parts of mixed solution of deionized water and ethanol at a speed of 3:1, firstly, placing the bis ((3, 4-epoxycyclohexyl) methyl) adipate solution in a hot blast dryer at 80 ℃ for drying until the water content is lower than 40%, placing a PP material in the hot blast dryer at 80 ℃ for drying for 2 hours, uniformly mixing the dried PP with the bis ((3, 4-epoxycyclohexyl) methyl) adipate and other mass in a Hake micro extruder for blending extrusion, wherein the blending time is 30min, the screw rotating speed is 85r/min, the temperature is 135 ℃, then placing a sample in a fixed die, tabletting by a vulcanizing press, setting the temperature to 182 ℃ and the dwell time to be 10min, and preparing a sheet with a thickness of 1 mm; the rest of the embodiments are the same as in example 1.
Comparative example 5
The difference between this comparative example and example 1 is that no phenolic resin modification is performed, and the specific process is:
1. preparation of a foaming material: weighing 25 parts of bis ((3, 4-epoxycyclohexyl) methyl) adipate, dispersing in 100 parts of mixed solution of deionized water and ethanol at a speed of 3:1, firstly, placing the bis ((3, 4-epoxycyclohexyl) methyl) adipate solution in a hot blast dryer at 80 ℃ for drying until the water content is lower than 40%, placing a PP material in the hot blast dryer at 80 ℃ for drying for 2 hours, uniformly mixing the dried PP with the bis ((3, 4-epoxycyclohexyl) methyl) adipate and other mass in a Hake micro extruder for blending extrusion, wherein the blending time is 30min, the screw rotating speed is 85r/min, the temperature is 135 ℃, then placing a sample in a fixed die, tabletting by a vulcanizing press, setting the temperature to 182 ℃ and the dwell time to be 10min, and preparing a sheet with a thickness of 1 mm;
2. Supercritical CO 2 Foaming: firstly, circulating water of a low-temperature constant-temperature tank is opened to control the temperature in the autoclave at 45 ℃, preheating is carried out for 30min in advance, then the sheet is put into the autoclave, and liquid CO is ensured after the autoclave body is sealed 2 Introducing into a kettle, maintaining for 5min, releasing gas, and pumping CO with constant pressure fluid pump 2 Pumping into a kettle body, controlling the pressure to be 20MPa, soaking the sample in CO under the state 2 48h, rapidly decompressing and opening the kettle, placing the sample into an oil bath pot with the temperature of 100 ℃ for foaming for 60s, rapidly placing the foamed sample into ice water for cooling and shaping to obtain a foaming core layer of the epoxy mixed PP with stable cell structure;
3. preparing phenolic resin: 13 parts of phenol is weighed, the water bath temperature is constant at 50 ℃, the mixture is heated to be molten, 20 parts of 50% sodium hydroxide solution is added for reaction for 30min, then 26 parts of formaldehyde solution is added, and the water bath temperature is increased to 60 ℃ for reaction for 50min; then 10 parts of 50% sodium hydroxide solution is added, and the reaction is carried out for 30min under the condition that the water bath temperature is 70 ℃; finally, adding 6 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, and finally, rapidly adding 10 parts of (+) -B-methoxy diisopinus camphorborane into the mixture, and then rapidly cooling to obtain phenolic resin;
4. And (3) thermally coating a reinforcing and toughening layer on the aluminum plate: polishing the aluminum plate until the roughness is Ra0.6mu.m, respectively cleaning the aluminum plate with acetone and absolute ethyl alcohol for 8min, and drying for later use; drying the modified phenolic resin until the water content is 20%, simultaneously feeding the dried modified phenolic resin and the metal plate into the middle of an upper covering roller and a lower covering roller, carrying out hot covering on the upper covering roller and the lower covering roller at 250 ℃ and 0.5Mpa for 30s, and covering a toughening reinforcing layer on the surface of the aluminum plate;
5. preparation of the adhesive: stirring 55 parts of polystyrene particles and 25 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; the toughening agent solution is prepared by uniformly stirring 28 parts of dibutyl phthalate and 17 parts of methyl 2-bromooctoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 5 parts of acetone and 11 parts of ethanol, and uniformly stirring; stirring a polystyrene solution, a toughening agent solution and 6 parts of methyl methacrylate in a stirrer at a speed of 35r/min for 20min to uniformly mix the components to prepare the adhesive;
6. and (3) preparing adhesive tape solder: placing the cleaned and dried coffee grounds into a ball mill, and grinding for 10 minutes at 380rpm to refine the reinforced phase particles; finally, placing the mixture into a vacuum tube furnace, heating to 800 ℃ at a speed of 12 ℃/min, and sintering for 2 hours for standby; mixing the prepared Sn, ag, zn and the sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.2 parts of solder powder and 8 parts of adhesive according to the mass ratio of 10:7:3:0.05, uniformly mixing and stirring 80.2 parts of solder powder to obtain paste solder, and placing the paste solder in a 65 ℃ oven for drying for 3 hours to remove volatile elements;
7. Combining the cleaned foaming core layer and the composite aluminum plate by adopting adhesive tape solder: the adhesive tape brazing filler metal is respectively coated on the PP foam core layer in a spot mode, the interval between the adhesive tape brazing filler metals is 2mm, the composite aluminum plate is arranged above the coated adhesive tape brazing filler metal, the PP foam core layer is arranged below the adhesive tape brazing filler metal, the adhesive tape brazing filler metal is coated on the other surface of the PP foam core layer in a spot mode, the bottommost layer is the composite aluminum plate, a five-layer structure is formed and fixed, the composite aluminum plate is heated to 280 ℃ at the heating speed of 9 ℃/min, heat preservation is carried out for 8min, vacuumizing is carried out until the pressure of 0.6MPa is applied to the two sides of the composite aluminum plate, after the adhesive tape brazing filler metal is leveled and solidified, the temperature is raised to 350 ℃ again, the pressure of 2MPa is applied, and after heat preservation is carried out for 5min, liquid nitrogen is introduced for quenching, and the composite multi-layer foaming template is obtained.
Comparative example 6
This comparative example is different from example 1 in that a solution of 10% styrene-butadiene in water was used as a modifying substance for a phenolic resin.
Comparative example 7
The comparative example differs from example 1 in the amount of phenolic resin modifying substance added, and the specific modified phenolic resin is: 13 parts of phenol is weighed, the water bath temperature is constant at 50 ℃, the mixture is heated to be molten, 20 parts of 50% sodium hydroxide solution is added for reaction for 30min, then 26 parts of formaldehyde solution is added, and the water bath temperature is increased to 60 ℃ for reaction for 50min; then 10 parts of 50% sodium hydroxide solution is added, and the reaction is carried out for 30min under the condition that the water bath temperature is 70 ℃; finally, adding 6 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 3.2 parts of solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water, raising the temperature of a water bath to 85 ℃ for reacting for 140min, finally, rapidly adding 10 parts of (+) -B-methoxy diisopinus camphoryl borane into the mixture, reacting for 3h at the temperature of 135 ℃ after the addition, and rapidly cooling to obtain the modified phenolic resin; the rest of the embodiments are the same as in example 1.
Comparative example 8
The comparative example differs from example 1 in the amount of phenolic resin modifying substance added, and the specific modified phenolic resin is: 13 parts of phenol is weighed, the water bath temperature is constant at 50 ℃, the mixture is heated to be molten, 20 parts of 50% sodium hydroxide solution is added for reaction for 30min, then 26 parts of formaldehyde solution is added, and the water bath temperature is increased to 60 ℃ for reaction for 50min; then 10 parts of 50% sodium hydroxide solution is added, and the reaction is carried out for 30min under the condition that the water bath temperature is 70 ℃; finally, adding 6 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 0.8 part of solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water, raising the temperature of a water bath to 85 ℃ for reacting for 140min, finally, rapidly adding 10 parts of (+) -B-methoxy diisopinus camphoryl borane into the mixture, reacting for 3h at the temperature of 135 ℃ after the addition, and rapidly cooling to obtain the modified phenolic resin; the rest of the embodiments are the same as in example 1.
Comparative example 9
The comparative example differs from example 1 in that no flame retardant additive was added during the aluminum plate modified phenolic resin, the specific process was: weighing 10 parts of phenol, heating to melt at the water bath temperature of 50 ℃, adding 16 parts of 50% sodium hydroxide solution, reacting for 30min, adding 32 parts of formaldehyde solution, and reacting for 50min at the water bath temperature of 60 ℃; then 8 parts of 50% sodium hydroxide solution is added, and the reaction is carried out for 30min under the condition that the water bath temperature is 70 ℃; finally adding 8 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 1.5 parts of solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water, raising the water bath temperature to 85 ℃ for reacting for 140min, and then rapidly cooling to obtain modified phenolic resin; the rest of the embodiments are the same as in example 1.
Comparative example 10
This comparative example differs from example 1 in that the flame retardant additive during the modification of the phenolic resin is aluminum tripolyphosphate and the remaining embodiments are the same as example 1.
Comparative example 11
This comparative example differs from example 1 in that the toughening agent is butyl acetate and the remaining embodiments are the same as example 1.
Comparative example 12
The difference between the comparative example and the example 1 is that the toughening agent is not subjected to two heating treatments, and the specific adhesive is prepared by uniformly mixing 55 parts of polystyrene particles and 25 parts of ethanol by stirring, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; the toughening agent solution is prepared by placing 28 parts of dibutyl phthalate and 17 parts of methyl 2-bromooctoate in a container, stirring with a metal stirring rod, heating to 60 ℃, stirring for 1h, cooling to below 40 ℃, adding 5 parts of acetone, and uniformly stirring 11 parts of ethanol; stirring a polystyrene solution, a toughening agent solution and 6 parts of methyl methacrylate in a stirrer at a speed of 35r/min for 20min to uniformly mix the components to prepare the adhesive; the rest of the embodiments are the same as in example 1.
Comparative example 13
The comparative example differs from example 1 in the different component content of the toughening agent, the specific adhesive was prepared as follows: stirring 55 parts of polystyrene particles and 25 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; the toughening agent solution is prepared by uniformly stirring 28 parts of dibutyl phthalate and 7 parts of methyl 2-bromooctoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 5 parts of acetone and 11 parts of ethanol, and uniformly stirring; stirring a polystyrene solution, a toughening agent solution and 6 parts of methyl methacrylate in a stirrer at a speed of 35r/min for 20min to uniformly mix the components to prepare the adhesive; the rest of the embodiments are the same as in example 1.
Comparative example 14
The comparative example differs from example 1 in the different component content of the toughening agent, the specific adhesive was prepared as follows: stirring 55 parts of polystyrene particles and 25 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; the toughening agent solution is prepared by uniformly stirring 28 parts of dibutyl phthalate and 27 parts of 2-bromomethyl octanoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 5 parts of acetone and 11 parts of ethanol, and uniformly stirring; stirring a polystyrene solution, a toughening agent solution and 6 parts of methyl methacrylate in a stirrer at a speed of 35r/min for 20min to uniformly mix the components to prepare the adhesive; the rest of the embodiments are the same as in example 1.
Comparative example 15
The comparative example differs from example 1 in that no sintering was added and the refined coffee grounds were subjected to braze reinforcement, and the specific tape braze was prepared as follows: preparing Sn, ag and Zn by adopting a mechanical stirring method, mixing 80 parts by weight of the Sn, ag and Zn according to the mass ratio of 10:7:3, uniformly mixing and stirring 80 parts of solder powder and 8 parts of adhesive to obtain paste solder, placing the paste solder in a 65 ℃ oven for drying for 3 hours, removing volatile elements in the paste solder, and rolling the solder into adhesive tape solder with the thickness of 1mm by using a roller; the rest of the embodiments are the same as in example 1.
Comparative example 16
The comparative example differs from example 1 in that the mixing ratio of Sn, ag, zn, and sintered coffee grounds is not used, and the specific tape solder was prepared as follows: placing the cleaned and dried coffee grounds into a ball mill, and grinding for 10 minutes at 380rpm to refine the reinforced phase particles; finally, placing the mixture into a vacuum tube furnace, heating to 800 ℃ at a speed of 12 ℃/min, and sintering for 2 hours for standby; mixing Sn, ag, zn and sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.4 parts of solder powder and 8 parts of adhesive according to a mass ratio of 10:7:3:0.1, uniformly mixing and stirring 80.4 parts of solder powder to obtain paste solder, placing the paste solder in a 65 ℃ oven for drying for 3 hours, removing volatile elements in the paste solder, and rolling the solder into adhesive tape solder with the thickness of 1mm by using a roller; the rest of the embodiments are the same as in example 1.
Comparative example 17
The comparative example differs from example 1 in that the mixing ratio of Sn, ag, zn, and sintered coffee grounds is not used, and the specific tape solder was prepared as follows: placing the cleaned and dried coffee grounds into a ball mill, and grinding for 10 minutes at 380rpm to refine the reinforced phase particles; finally, placing the mixture into a vacuum tube furnace, heating to 800 ℃ at a speed of 12 ℃/min, and sintering for 2 hours for standby; mixing Sn, ag, zn and sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.02 parts of solder powder and 8 parts of adhesive according to a mass ratio of 10:7:3:0.005, uniformly mixing and stirring 80.02 parts of solder powder to obtain paste solder, placing the paste solder in a 65 ℃ oven for drying for 3 hours, removing volatile elements in the paste solder, and rolling the solder into adhesive tape solder with the thickness of 1mm by using a roller; the rest of the embodiments are the same as in example 1.
The testing method comprises the following steps:
1. the die size was 2000mm by 200mm by 50mm and the performance of each block was measured with an average split size of 200mm by 50 mm. Cutting each sample into 200mm by 25mm small blocks for testing the heat conductivity coefficient; each sample was cut into 50mm x 30mm pieces for testing compressive strength; cutting each sample into 100mm x 30mm small blocks, placing the samples in the open air for sunlight exposure for 200 hours, measuring the intensity difference before and after the exposure, referring to 6.7 measured intensities in GB/T11718-2009, and calculating the intensity loss rate, namely the stability; the test results are shown in Table 1.
2. The test of the internal bond strength refers to the test method of the internal bond strength of 6.7 strips in GB/T11718-2009, the test of the bending strength refers to the test method of the annex A.3 in GB/T34006-2017 after the preparation of the recombined wood is completed, and the test results are shown in Table 2.
TABLE 1 Performance test results
Table 2 test results of bond strength and flexural Strength
Claims (7)
1. The preparation process of the foamed aluminum-plastic composite template with the multilayer structure is characterized by comprising the following steps of:
(1) Preparation of a foaming material: weighing 20-30 parts of epoxy resin, dispersing the epoxy resin in 100 parts of mixed solution of deionized water and 3:1 of ethanol, firstly, placing the epoxy resin solution in a hot blast dryer at 80 ℃ for drying until the water content is lower than 40%, placing a PP material in the hot blast dryer at 80 ℃ for drying for 2 hours, carrying out blending extrusion on the PP and the epoxy material, wherein the blending time is 30 minutes, the screw speed is 70-100r/min, the temperature is 120-150 ℃, then placing a sample in a fixed die, tabletting the sample by a flat vulcanizing machine, and preparing a sheet with the thickness of 1mm, wherein the temperature is set to 180-185 ℃ and the pressure maintaining time is 10 minutes;
(2) Supercritical CO 2 Foaming: firstly, circulating water of a low-temperature constant-temperature tank is opened to control the temperature in the autoclave at 45 ℃, preheating is carried out for 30min in advance, then the sheet is put into the autoclave, and liquid CO is ensured after the autoclave body is sealed 2 Introducing into a kettle, maintaining for 5min, releasing gas, and pumping CO with constant pressure fluid pump 2 Pumping into a kettle body, controlling the pressure to be 20MPa, soaking the sample in CO under the state 2 48 h, rapidly decompressing and opening the kettle, putting the processed sheet into an oil bath pot with the temperature of 100 ℃ for foaming for 60 seconds, and rapidly putting the foamed sample into ice water for cooling and shaping to obtain a foaming core layer of the epoxy mixed PP with stable foam cell structure;
(3) And (3) thermally coating a reinforcing and toughening layer on the aluminum plate: polishing an aluminum plate until the roughness is Ra0.5-0.8μm, respectively washing the aluminum plate with acetone and absolute ethyl alcohol for 5-10min, and drying for later use; drying the modified phenolic resin until the water content is 20%, simultaneously feeding the dried modified phenolic resin and the metal plate into the middle of an upper covering roller and a lower covering roller, carrying out hot covering on the upper and lower rollers at 250 ℃ and 0.5Mpa for 30s, and carrying out hot covering on the surface of the aluminum plate to strengthen the reinforcing layer;
(4) Preparation of the adhesive: stirring 50-60 parts of polystyrene particles and 20-30 parts of ethanol to uniformly mix, placing the mixture in a container, sealing and standing for 3 hours to prepare a polystyrene solution; stirring 5-8 parts of methyl methacrylate in a polystyrene solution and a toughening agent solution in a stirrer at a speed of 25-45r/min for 20min to uniformly mix the components to prepare the binder;
(5) And (3) preparing adhesive tape solder: grinding the cleaned and dried coffee grounds at 350-400rpm for 10min to refine the particles of the strengthening phase; finally, heating to 800 ℃ at the speed of 10-15 ℃/min, and sintering for 2 hours for standby; mixing Sn, ag and Zn and sintered coffee grounds according to a certain proportion to obtain solder, mixing 80.2 parts of solder powder and 8 parts of adhesive, stirring uniformly to obtain paste solder, and drying in a 50-80 ℃ oven for 3 hours to remove volatile elements;
(6) Combining the cleaned foaming core layer and the composite aluminum plate by adopting adhesive tape solder: the adhesive tape brazing filler metal is respectively coated on a PP foaming core layer in a spot mode, the interval between the adhesive tape brazing filler metals is 2mm, the composite aluminum plate is arranged above the adhesive tape brazing filler metal, the PP foaming core layer is arranged below the adhesive tape brazing filler metal, the adhesive tape brazing filler metal is coated on the other surface of the PP foaming core layer in a spot mode, the bottommost layer is the composite aluminum plate, a five-layer structure is formed, the composite aluminum plate is fixed, the composite aluminum plate is heated to 250-300 ℃ at the heating speed of 8-10 ℃/min, the temperature is kept for 6-12min, vacuumizing is conducted to be below 8 x 10 < -2 > Pa, the pressure of 0.5-0.8MPa is applied to the two sides, after the adhesive tape brazing filler metal is subjected to leveling solidification, the temperature is raised to 350 ℃ again, the pressure of 2MPa is applied, after the heat preservation is conducted for 5min, liquid nitrogen is introduced for quenching, and the composite multi-layer foaming template is obtained.
2. A process for preparing the foamed aluminum-plastic composite template with the multilayer structure as claimed in claim 1, which is characterized in that: the epoxy resin in step (1) is bis ((3, 4-epoxycyclohexyl) methyl) adipate.
3. A process for preparing the foamed aluminum-plastic composite template with the multilayer structure as claimed in claim 1, which is characterized in that:
the preparation process of the modified phenolic resin in the step (3) comprises the following steps: weighing 10-16 parts of phenol, heating to melt at a constant water bath temperature of 50 ℃, adding 16-25 parts of 50% sodium hydroxide solution, reacting for 30min, adding 20-32 parts of formaldehyde solution, and reacting for 50min at a water bath temperature of 60 ℃; adding 8-13 parts of 50% sodium hydroxide solution, and reacting for 30min at the water bath temperature of 70 ℃; finally, adding 5-8 parts of formaldehyde solution, reacting for 30min at the constant temperature of 85 ℃, continuously adding 1.5-2 parts of modified solution, raising the water bath temperature to 85 ℃ for reacting for 140min, finally, rapidly adding 8-12 parts of flame retardant modified substance into the mixture, reacting for 1-5h at the temperature of 120-150 ℃ after the addition, and rapidly cooling to obtain the modified phenolic resin.
4. A process for preparing the foamed aluminum-plastic composite template with the multilayer structure as claimed in claim 3, which is characterized in that: wherein the modifying solution is a solution prepared by 10% of 2, 3-dihydroxyl-1, 4-phthalic acid in water.
5. A process for preparing the foamed aluminum-plastic composite template with the multilayer structure as claimed in claim 3, which is characterized in that: wherein the flame retardant modifying substance is (+) -B-methoxy diisopinobronamble camphorborane.
6. A process for preparing the foamed aluminum-plastic composite template with the multilayer structure as claimed in claim 1, which is characterized in that:
in the step (4), the toughening agent solution is prepared by uniformly stirring 25-30 parts of dibutyl phthalate and 15-19 parts of 2-bromooctanoate, heating to 75 ℃, preserving heat for 2 hours, heating to 95 ℃, preserving heat for 1 hour, cooling to below 40 ℃, adding 3-6 parts of acetone and 10-12 parts of ethanol, and uniformly stirring to obtain the toughening agent solution.
7. A process for preparing the foamed aluminum-plastic composite template with the multilayer structure as claimed in claim 1, which is characterized in that: preferably, in the step (5), sn, ag and Zn are mixed in a mass ratio of 10:7:3:0.05.
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| CN202311364967.3A CN117445497B (en) | 2023-10-20 | 2023-10-20 | Preparation process of foamed aluminum-plastic composite template with multilayer structure |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007125715A (en) * | 2005-11-01 | 2007-05-24 | Furukawa Electric Co Ltd:The | Fire retardant composite panel |
| JP2007196545A (en) * | 2006-01-27 | 2007-08-09 | Nissan Motor Co Ltd | Metal-resin composite structure and its manufacturing method |
| JP2011189587A (en) * | 2010-03-13 | 2011-09-29 | Furukawa Electric Co Ltd:The | Composite material including aluminum material/foamed resin layer and method of manufacturing the same |
| CN105017641A (en) * | 2015-05-08 | 2015-11-04 | 镇江荣诚管业有限公司 | Light fire retardant board and processing method thereof |
| CN107351852A (en) * | 2017-06-29 | 2017-11-17 | 常州诺法新材料科技有限公司 | Light fibre enhancing phenolic aldehyde sandwich sheet material and preparation method thereof |
| CN109501197A (en) * | 2018-12-06 | 2019-03-22 | 江苏科技大学 | A kind of good hollow composite material building template of anti-flammability and its processing method and recovery method |
| CN111872593A (en) * | 2020-07-31 | 2020-11-03 | 哈尔滨工业大学 | Preparation method of binder for tape-bonding brazing filler metal, tape-bonding brazing filler metal and brazing method |
| CN115895083A (en) * | 2022-11-14 | 2023-04-04 | 江苏卡普丹建筑科技有限公司 | Foam core metal composite plate and preparation method thereof |
| WO2023065742A1 (en) * | 2021-10-20 | 2023-04-27 | 常州大学 | Blended and filled modified pet foam material and molding method therefor |
| CN116218122A (en) * | 2022-12-16 | 2023-06-06 | 中车唐山机车车辆有限公司 | Low-expansion-ratio high-strength polypropylene foam material and preparation method thereof |
| CN116278244A (en) * | 2023-02-14 | 2023-06-23 | 山东非金属材料研究所 | Composite material rotary bottom plate |
-
2023
- 2023-10-20 CN CN202311364967.3A patent/CN117445497B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007125715A (en) * | 2005-11-01 | 2007-05-24 | Furukawa Electric Co Ltd:The | Fire retardant composite panel |
| JP2007196545A (en) * | 2006-01-27 | 2007-08-09 | Nissan Motor Co Ltd | Metal-resin composite structure and its manufacturing method |
| JP2011189587A (en) * | 2010-03-13 | 2011-09-29 | Furukawa Electric Co Ltd:The | Composite material including aluminum material/foamed resin layer and method of manufacturing the same |
| CN105017641A (en) * | 2015-05-08 | 2015-11-04 | 镇江荣诚管业有限公司 | Light fire retardant board and processing method thereof |
| CN107351852A (en) * | 2017-06-29 | 2017-11-17 | 常州诺法新材料科技有限公司 | Light fibre enhancing phenolic aldehyde sandwich sheet material and preparation method thereof |
| CN109501197A (en) * | 2018-12-06 | 2019-03-22 | 江苏科技大学 | A kind of good hollow composite material building template of anti-flammability and its processing method and recovery method |
| CN111872593A (en) * | 2020-07-31 | 2020-11-03 | 哈尔滨工业大学 | Preparation method of binder for tape-bonding brazing filler metal, tape-bonding brazing filler metal and brazing method |
| WO2023065742A1 (en) * | 2021-10-20 | 2023-04-27 | 常州大学 | Blended and filled modified pet foam material and molding method therefor |
| CN115895083A (en) * | 2022-11-14 | 2023-04-04 | 江苏卡普丹建筑科技有限公司 | Foam core metal composite plate and preparation method thereof |
| CN116218122A (en) * | 2022-12-16 | 2023-06-06 | 中车唐山机车车辆有限公司 | Low-expansion-ratio high-strength polypropylene foam material and preparation method thereof |
| CN116278244A (en) * | 2023-02-14 | 2023-06-23 | 山东非金属材料研究所 | Composite material rotary bottom plate |
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