CN113773760A - Multifunctional electric-conductive heat-conductive composite adhesive tape - Google Patents
Multifunctional electric-conductive heat-conductive composite adhesive tape Download PDFInfo
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- CN113773760A CN113773760A CN202111145560.2A CN202111145560A CN113773760A CN 113773760 A CN113773760 A CN 113773760A CN 202111145560 A CN202111145560 A CN 202111145560A CN 113773760 A CN113773760 A CN 113773760A
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- 239000002131 composite material Substances 0.000 title claims abstract description 95
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 77
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 61
- 239000010439 graphite Substances 0.000 claims abstract description 60
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 230000001070 adhesive effect Effects 0.000 claims abstract description 14
- 239000011888 foil Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 84
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 45
- 239000012790 adhesive layer Substances 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 28
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 18
- 229910001510 metal chloride Inorganic materials 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 7
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 claims description 7
- -1 graphite alkene Chemical class 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- VIEXQFHKRAHTQS-UHFFFAOYSA-N chloroselanyl selenohypochlorite Chemical compound Cl[Se][Se]Cl VIEXQFHKRAHTQS-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 5
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 5
- 235000011151 potassium sulphates Nutrition 0.000 claims description 5
- 238000003892 spreading Methods 0.000 claims description 5
- 230000007480 spreading Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 abstract description 4
- 229920001721 polyimide Polymers 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000011889 copper foil Substances 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011300 coal pitch Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000011307 graphite pitch Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
-
- 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
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
-
- 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
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
-
- 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
- C09J2479/00—Presence of polyamine or polyimide
- C09J2479/08—Presence of polyamine or polyimide polyimide
- C09J2479/086—Presence of polyamine or polyimide polyimide in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a multifunctional electric-conduction and heat-conduction composite adhesive tape, which belongs to the technical field of heat-conduction adhesive tapes and comprises an adhesive heat-conduction layer, a composite electric-conduction layer and a PI (polyimide) film layer, wherein the adhesive heat-conduction layer, the composite electric-conduction layer and the PI film layer are sequentially glued with each other; the adhesive tape adopts a composite material and graphite to form a micro capacitor, the conductive efficiency is greatly improved through the metal foil inside the adhesive tape, and meanwhile, the heat-conducting property is also greatly improved by utilizing the excellent conductive property of the metal foil and the graphene material.
Description
Technical Field
The invention belongs to the technical field of heat-conducting adhesive tapes, and particularly relates to a multifunctional electric-conducting heat-conducting composite adhesive tape.
Background
The current electronic industry puts forward higher and higher requirements on heat dissipation materials as core components of a thermal control system, and an efficient heat conduction and light material is urgently needed to rapidly transfer heat out to ensure normal operation of electronic equipment. The conventional graphite fin process is to disperse graphite powder, such as flake graphite, in a binder and then to prepare a graphite fin by hot pressing, such as chinese patent application nos. 201110098100.9 and 201010240207.8. The graphite radiating fins prepared by the method are sold in the market, and the thermal conductivity coefficient of the graphite radiating fins is generally low.
In order to improve the heat conductivity, it has been reported, for example, in chinese patent application No. 201110002281.0, that expandable graphite is obtained by treating natural graphite, vermicular is obtained by heat treatment, and a heat sink is obtained by rolling. For another report, for example, chinese patent application No. 200910074263.6, natural flake graphite and coal pitch are used as raw materials, and the raw materials are kneaded, pressed and molded, and then graphitized to prepare the heat-conducting graphite heat-dissipating material.
Although the methods can partially improve the thermal conductivity of the graphite material, the effects are limited, the thermal conductivity coefficient of the graphite material is generally lower than 600, and the thermal conductivity coefficient of the graphite single crystal surface can reach 2200, so that the thermal conductivity of the graphite radiating fin has a great room in theory.
Disclosure of Invention
The invention aims to provide a multifunctional electric and heat conducting composite adhesive tape, which adopts composite materials and graphite to form a micro capacitor, greatly improves the electric conduction efficiency through a metal foil inside, and simultaneously greatly improves the heat conducting property simultaneously when the electric conduction performance is excellent by utilizing the metal foil and a graphene material.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multi-functional electrically conductive heat conduction composite tape, this multi-functional electrically conductive heat conduction composite tape includes sticky heat-conducting layer, composite conductive layer, PI thin layer, sticky heat-conducting layer with the composite conductive layer with the PI thin layer splices in proper order, sticky heat-conducting layer includes the two-sided glue film, and two-sided glue film one side is glued there is graphite alkene layer, composite conductive layer includes combined material electrode, graphite electrode, metal forming, and the combined material electrode is fixed respectively in the metal forming both sides with graphite electrode.
Preferably, the thickness of the adhesive heat-conducting layer is 1-3 mm.
Preferably, the thickness of the composite conductive layer is 1-3 mm.
Preferably, the adhesive heat-conducting layer is manufactured by adopting the following process, and the method specifically comprises the following steps:
a. flatly spreading the two side adhesive layers, and preparing a graphite rod with the length being wider than the two side adhesive layers and the circumference being L;
b. placing a graphite rod on one side of the double-sided adhesive layer, and rolling along one end of the double-sided adhesive layer to the other end;
c. after rolling is finished, a double-sided adhesive layer with one side attached with graphene is obtained, through holes penetrating through the double-sided adhesive layer are formed in the one side of the double-sided adhesive layer, the through holes are uniformly distributed on the double-sided adhesive layer, and the aperture of each through hole is 0.03-0.06 mm.
Preferably, the rolling speed of the graphite rod in the step b is (L/4-L/3)/min.
Preferably, the composite conductive layer is manufactured by adopting the following process, which specifically comprises the following steps:
a. preparing a composite material electrode;
b. preparing a graphite electrode;
c. pressing the prepared composite material electrode and the graphite electrode to the thickness of the composite conducting layer;
d. and bonding the metal foil with the same thickness between the composite material electrode and the graphite electrode to finish the manufacture.
Preferably, the composite material electrode preparation raw material comprises metal chloride, sulfate, graphene oxide and ethylene glycol, wherein the metal chloride adopts one of cobalt chloride, selenium chloride and the like, the sulfate adopts one of potassium sulfate, sodium sulfate and the like, and the mass ratio of the metal chloride to the sulfate to the graphene oxide to the ethylene glycol is 1:2:5: 5.
Preferably, the composite electrode is prepared by the following method:
(1) according to the corresponding mass, adding metal chloride and sulfate into ethylene glycol, and fully stirring and dispersing;
(2) after the dispersion is uniform, adding graphene oxide with corresponding mass, stirring, and after the dispersion is uniform, placing the solution in an environment with the temperature of 120-150 ℃ for 12-15 h;
(3) and after the placement, taking out the electrode, naturally cooling the electrode to room temperature, placing the electrode in an environment of 70-80 ℃ for 5-7h, and drying the electrode to obtain the composite material electrode.
The invention has the beneficial effects that:
1. set up heat-conducting layer and compound conducting layer, the heat-conducting layer mainly conducts heat, can electrically conduct when conducting heat, and compound conducting layer can conduct heat when electrically conducting simultaneously, and both superposes down, increase substantially the heat conductivity of whole sticky tape.
2. The heat conduction layer adopts graphite alkene as main conducting medium, and heat conductivility is good, sets up the through-hole on the double-sided glue film simultaneously, further increases heat conduction efficiency.
3. The composite conductive layer adopts a composite material electrode and a graphite electrode, and a metal foil is adopted between the composite material electrode and the graphite electrode for conducting electricity, a small capacitor is formed between the composite material electrode and the graphite electrode, the middle part of the composite material electrode conducts electricity through metal atom movement, and the conductivity is greatly improved compared with the traditional method of singly adopting a metal layer for conducting heat in the presence of the small capacitor.
4. The middle part of the composite conducting layer is made of metal foil, the middle part has good extensibility, and meanwhile, the double-sided adhesive layer attached with graphene has excellent extensibility and further improved overall mechanical strength, and the whole adhesive tape can be bent and is suitable for being adhered to adhesive tapes at different positions.
Drawings
Fig. 1 is a schematic structural view of a multifunctional electrically and thermally conductive composite tape provided by the present invention.
In the figure: 1. gluing the heat conduction layer; 2. a composite conductive layer; 3. and a PI film layer.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
Referring to fig. 1, the multifunctional electrically and thermally conductive composite tape according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.
This multi-functional electrically conductive heat conduction composite adhesive tape includes sticky heat-conducting layer, compound conducting layer, PI thin layer, sticky heat-conducting layer with compound conducting layer with the PI thin layer splices in proper order, sticky heat-conducting layer includes the two-sided glue film, and two-sided glue film one side glues and has graphite alkene layer, compound conducting layer includes combined material electrode, graphite electrode, metal forming, and the combined material electrode is fixed respectively in the metal forming both sides with graphite electrode.
Specifically, the thickness of the adhesive heat-conducting layer is 1-3 mm.
Specifically, the thickness of the composite conductive layer is 1-3 mm.
Specifically, the adhesive heat-conducting layer is manufactured by adopting the following process, and the method specifically comprises the following steps:
a. flatly spreading the two side adhesive layers, and preparing a graphite rod with the length being wider than the two side adhesive layers and the circumference being L;
b. placing a graphite rod on one side of the double-sided adhesive layer, and rolling along one end of the double-sided adhesive layer to the other end;
c. after rolling is finished, a double-sided adhesive layer with one side attached with graphene is obtained, through holes penetrating through the double-sided adhesive layer are formed in the one side of the double-sided adhesive layer, the through holes are uniformly distributed on the double-sided adhesive layer, and the aperture of each through hole is 0.03-0.06 mm.
Specifically, the rolling speed of the graphite rod in the step b is (L/4-L/3)/min.
Specifically, the composite conductive layer is manufactured by adopting the following process, and the method specifically comprises the following steps:
a. preparing a composite material electrode;
b. preparing a graphite electrode;
c. pressing the prepared composite material electrode and the graphite electrode to the thickness of the composite conducting layer;
d. and bonding the metal foil with the same thickness between the composite material electrode and the graphite electrode to finish the manufacture.
Specifically, the composite material electrode comprises metal chloride, sulfate, graphene oxide and ethylene glycol, wherein the metal chloride is one of cobalt chloride and selenium chloride, the sulfate is one of potassium sulfate and sodium sulfate, and the mass ratio of the metal chloride to the sulfate to the graphene oxide to the ethylene glycol is 1:2:5: 5.
Specifically, the composite material electrode is prepared by the following method:
(1) according to the corresponding mass, adding metal chloride and sulfate into ethylene glycol, and fully stirring and dispersing;
(2) after the dispersion is uniform, adding graphene oxide with corresponding mass, stirring, and after the dispersion is uniform, placing the solution in an environment with the temperature of 120-150 ℃ for 12-15 h;
(3) and after the placement, taking out the electrode, naturally cooling the electrode to room temperature, placing the electrode in an environment of 70-80 ℃ for 5-7h, and drying the electrode to obtain the composite material electrode.
The chemicals used in the above process are commercially available, and have a purity of AR, wherein the metal foil can be copper foil or aluminum foil.
Examples
Firstly, preparing a composite conductive layer, and adopting the following process to manufacture the composite conductive layer, wherein the process specifically comprises the following steps:
a. preparing a composite material electrode;
b. preparing a graphite electrode;
c. pressing the prepared composite material electrode and the graphite electrode to the thickness of the composite conducting layer;
d. and bonding the metal foil with the same thickness between the composite material electrode and the graphite electrode to finish the manufacture.
Specifically, the composite material electrode comprises metal chloride, sulfate, graphene oxide and ethylene glycol, wherein the metal chloride is one of cobalt chloride and selenium chloride, the sulfate is one of potassium sulfate and sodium sulfate, and the mass ratio of the metal chloride to the sulfate to the graphene oxide to the ethylene glycol is 1:2:5: 5.
The composite material electrode is prepared by the following method:
(1) according to the corresponding mass, adding cobalt chloride and sodium sulfate into ethylene glycol, and fully stirring and dispersing;
(2) after the solution is uniformly dispersed, adding graphene oxide with corresponding mass, stirring, and after the solution is uniform, placing the solution in an environment with the temperature of 120-150 ℃ for 12 h;
(3) and after the placement, taking out the composite material, naturally cooling the composite material to room temperature, placing the composite material in an environment of 80 ℃ for 6 hours, and drying the composite material to obtain the composite material electrode.
And pressing the prepared composite material electrode to a thickness of 1 mm.
And the graphite electrode is pressed into a block by adopting graphite, the block is pressed to the thickness of 1mm, a copper foil with the thickness of 1mm is manufactured, and the composite conducting layer is prepared by adopting the preparation method for preparing the composite conducting layer.
Secondly, preparing an adhesive heat-conducting layer, and adopting the following process to manufacture the adhesive heat-conducting layer, wherein the process specifically comprises the following steps:
a. selecting a 1mm double-side adhesive layer, flatly spreading the adhesive layer, and preparing a graphite rod with the length being wider than the two adhesive layers and the perimeter being L;
b. placing a graphite rod on one side of the double-sided adhesive layer, and rolling along one end of the double-sided adhesive layer to the other end, wherein the rolling speed of the graphite rod is L/4/min;
c. after rolling, obtain the two-sided glue film of one side attached to graphite alkene, along two-sided glue film one side, set up the through-hole that runs through two-sided glue film, the through-hole equipartition is on two-sided glue film, and the interval is 0.1mm, and the aperture of through-hole is 0.05 mm.
And finally, gluing the prepared composite conductive layer, the glued heat-conducting layer and the PI film layer with the thickness of 1mm to prepare the adhesive tape.
Comparative example 1
Firstly, preparing a composite conductive layer, and adopting the following process to manufacture the composite conductive layer, wherein the process specifically comprises the following steps:
a. preparing a composite material electrode;
b. preparing a graphite electrode;
c. pressing the prepared composite material electrode and the graphite electrode to the thickness of the composite conducting layer;
d. and bonding the metal foil with the same thickness between the composite material electrode and the graphite electrode to finish the manufacture.
Specifically, the composite material electrode comprises metal chloride, sulfate, graphene oxide and ethylene glycol, wherein the metal chloride is one of cobalt chloride and selenium chloride, the sulfate is one of potassium sulfate and sodium sulfate, and the mass ratio of the metal chloride to the sulfate to the graphene oxide to the ethylene glycol is 1:2:5: 5.
The composite material electrode is prepared by the following method:
(1) according to the corresponding mass, adding cobalt chloride and sodium sulfate into ethylene glycol, and fully stirring and dispersing;
(2) after the solution is uniformly dispersed, adding graphene oxide with corresponding mass, stirring, and after the solution is uniform, placing the solution in an environment with the temperature of 120-150 ℃ for 12 h;
(3) and after the placement, taking out the composite material, naturally cooling the composite material to room temperature, placing the composite material in an environment of 80 ℃ for 6 hours, and drying the composite material to obtain the composite material electrode.
And pressing the prepared composite material electrode to a thickness of 1 mm.
And the graphite electrode is pressed into a block by adopting graphite, the block is pressed to the thickness of 1mm, a copper foil with the thickness of 1mm is manufactured, and the composite conducting layer is prepared by adopting the preparation method for preparing the composite conducting layer.
Secondly, manufacturing a double-sided adhesive layer with through holes, forming the through holes penetrating through the double-sided adhesive layer along one side of the double-sided adhesive layer, uniformly distributing the through holes on the double-sided adhesive layer, wherein the distance between the through holes is 0.1mm, and the aperture of each through hole is 0.05 mm.
And finally, gluing the prepared composite conductive layer, the double-sided adhesive layer and the PI film layer with the thickness of 1mm to prepare the adhesive tape.
Comparative example 2
First, a conductive layer was prepared, and a 1mm copper foil was produced.
Secondly, preparing an adhesive heat-conducting layer, and adopting the following process to manufacture the adhesive heat-conducting layer, wherein the process specifically comprises the following steps:
a. selecting a 1mm double-side adhesive layer, flatly spreading the adhesive layer, and preparing a graphite rod with the length being wider than the two adhesive layers and the perimeter being L;
b. placing a graphite rod on one side of the double-sided adhesive layer, and rolling along one end of the double-sided adhesive layer to the other end, wherein the rolling speed of the graphite rod is L/4/min;
c. after rolling, obtain the two-sided glue film of one side attached to graphite alkene, along two-sided glue film one side, set up the through-hole that runs through two-sided glue film, the through-hole equipartition is on two-sided glue film, and the interval is 0.1mm, and the aperture of through-hole is 0.05 mm.
And finally, gluing the prepared conducting layer and the adhesive heat-conducting layer with a PI film layer with the thickness of 1mm to prepare the adhesive tape.
Comparative example 3
First, a conductive layer was prepared, and a 1mm copper foil was produced.
Secondly, manufacturing a double-sided adhesive layer with through holes, forming the through holes penetrating through the double-sided adhesive layer along one side of the double-sided adhesive layer, uniformly distributing the through holes on the double-sided adhesive layer, wherein the distance between the through holes is 0.1mm, and the aperture of each through hole is 0.05 mm.
Finally, the prepared conducting layer, the prepared double-sided adhesive layer and the PI film layer with the thickness of 1mm are adhered to prepare the adhesive tape
The following table data were obtained by cutting out the measurement samples of the above examples, comparative example 1, comparative example 2, and comparative example 3 into 2mm sections of the adhesive tape and performing the thermal and electrical conductivity of the adhesive tape by the steady state method and the universal meter, respectively:
| thermal conductivity W/(m X K) | Resistivity n Ω · m | |
| Examples | 680 | 12.98 |
| Comparative example 1 | 483 | 15.8 |
| Comparative example 2 | 495 | 14.2 |
| Comparative example 3 | 401 | 16.78 |
As can be seen from the above table, the adhesive tape using the composite conductive layer and the adhesive heat conductive layer has excellent heat conductivity and electrical conductivity.
The working principle of the invention is as follows: when the turnover table is used, the filling layer 6 is placed in the cushion cover 5, the upper cushion layer 1 and the lower cushion layer 2 are fixed through the zipper 4, and when a patient needs to turn over, the nylon belt 3 is lifted to assist in turning over; when the zipper is required to be cleaned, the zipper 5 and the hidden zipper 7 are detached.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a multi-functional electrically conductive heat conduction composite tape, its characterized in that, this multi-functional electrically conductive heat conduction composite tape includes sticky heat-conducting layer, compound conducting layer, PI thin layer, sticky heat-conducting layer with compound conducting layer with the PI thin layer splices in proper order, sticky heat-conducting layer includes the two sides glue film, and two sides glue film one side glues there is graphite alkene layer, compound conducting layer includes combined material electrode, graphite electrode, metal forming, and the combined material electrode is fixed respectively in the metal forming both sides with graphite electrode.
2. The multifunctional electric and heat conducting composite adhesive tape according to claim 1, wherein the thickness of the adhesive heat conducting layer is 1-3 mm.
3. The multifunctional electric and heat conducting composite adhesive tape according to claim 2, wherein the thickness of the composite electric conducting layer is 1-3 mm.
4. The multifunctional electric and heat conducting composite adhesive tape according to claim 1, wherein the adhesive heat conducting layer is manufactured by the following process, specifically comprising the following steps:
a. flatly spreading the two side adhesive layers, and preparing a graphite rod with the length being wider than the two side adhesive layers and the circumference being L;
b. placing a graphite rod on one side of the double-sided adhesive layer, and rolling along one end of the double-sided adhesive layer to the other end;
c. after rolling is finished, a double-sided adhesive layer with one side attached with graphene is obtained, through holes penetrating through the double-sided adhesive layer are formed in the one side of the double-sided adhesive layer, the through holes are uniformly distributed on the double-sided adhesive layer, and the aperture of each through hole is 0.03-0.06 mm.
5. The multifunctional electric and heat conductive composite tape according to claim 4, wherein the rolling speed of the graphite rod in step b is (L/4-L/3)/min.
6. The multifunctional electric and heat conducting composite tape according to claim 1, wherein the composite conducting layer is manufactured by the following process, specifically comprising the following steps:
a. preparing a composite material electrode;
b. preparing a graphite electrode;
c. pressing the prepared composite material electrode and the graphite electrode to the thickness of the composite conducting layer;
d. and bonding the metal foil with the same thickness between the composite material electrode and the graphite electrode to finish the manufacture.
7. The multifunctional electric and heat conducting composite tape according to claim 6, wherein the composite material electrode preparation raw materials comprise metal chloride, sulfate, graphene oxide and ethylene glycol, wherein the metal chloride is one of cobalt chloride and selenium chloride, the sulfate is one of potassium sulfate and sodium sulfate, and the mass ratio of the metal chloride to the sulfate to the graphene oxide to the ethylene glycol is 1:2:5: 5.
8. The multifunctional electric and heat conducting composite tape as claimed in claim 7, wherein the composite electrode is prepared by the following method:
(1) according to the corresponding mass, adding metal chloride and sulfate into ethylene glycol, and fully stirring and dispersing;
(2) after the dispersion is uniform, adding graphene oxide with corresponding mass, stirring, and after the dispersion is uniform, placing the solution in an environment with the temperature of 120-150 ℃ for 12-15 h;
(3) and after the placement, taking out the electrode, naturally cooling the electrode to room temperature, placing the electrode in an environment of 70-80 ℃ for 5-7h, and drying the electrode to obtain the composite material electrode.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514065A (en) * | 2015-12-29 | 2016-04-20 | 东莞市青麦田数码科技有限公司 | Heat-conducting glue/graphene composite multilayer heat-dissipating film and preparation method thereof |
| CN207958226U (en) * | 2017-12-28 | 2018-10-12 | 张家港康得新光电材料有限公司 | A kind of heat-conducting glue band |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514065A (en) * | 2015-12-29 | 2016-04-20 | 东莞市青麦田数码科技有限公司 | Heat-conducting glue/graphene composite multilayer heat-dissipating film and preparation method thereof |
| CN207958226U (en) * | 2017-12-28 | 2018-10-12 | 张家港康得新光电材料有限公司 | A kind of heat-conducting glue band |
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Application publication date: 20211210 |