CN109664567A - A kind of thermally conductive Wave suction composite material of sheet type and preparation method thereof - Google Patents
A kind of thermally conductive Wave suction composite material of sheet type and preparation method thereof Download PDFInfo
- Publication number
- CN109664567A CN109664567A CN201811515575.1A CN201811515575A CN109664567A CN 109664567 A CN109664567 A CN 109664567A CN 201811515575 A CN201811515575 A CN 201811515575A CN 109664567 A CN109664567 A CN 109664567A
- Authority
- CN
- China
- Prior art keywords
- thermally conductive
- wave
- layer
- composite material
- sheet type
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
Abstract
The invention discloses thermally conductive Wave suction composite materials of a kind of sheet type and preparation method thereof.The thermally conductive Wave suction composite material of sheet type includes heat-conducting layer and inhales wave layer, and weight percentage is calculated, and the heat-conducting layer includes the high polymer binder of 8%-15%, the thermal conducting agent of 80%-87%, the auxiliary agent less than or equal to 5%；Described to inhale the high polymer binder that wave layer includes 5%-17%, the magnetic powder of 80%-92%, the auxiliary agent less than or equal to 3%, in preparation process, the heat-conducting layer thickness in monolayer is 0.07-0.13mm, and the suctions wave layer thickness in monolayer is 0.07-0.13mm.The compound has good heat dissipation characteristics, while having good absorbing property, in addition, it has excellent mechanical performance, weather-proof, corrosion-resistant and environmentally friendly etc. comprehensive performances, is expected to as a kind of novel ideal thermally conductive absorbing material.
Description
Technical field
The present invention relates to absorbing materials and Heat Conduction Material field, are specifically related to a kind of thermally conductive Wave suction composite material of sheet type
And preparation method thereof.
Background technique
As electronic equipment develops to slimming, speed of service high speed, high frequency and Highgrade integration direction, heat dissipation
Problem is likely to occur in any position of electronic equipment, to influence the job stability of electronic equipment, reliability and use
Service life, or even will cause the damage of device.The incidental position of heat dissipation problem usually has digital control/power and puts some
Big chip position can effectively export the extra heat that equipment generates using heat-conducting pad or conduct to graphite
Layer, makes the unlikely overheat of chip, and surface layer heat is uniformly spread along the plane direction, and heat point source case is avoided to occur, and enhancing embodies effect.
Heat-conducting pad is, with metal oxide etc. for thermal conducting agent, to pass through one kind of special process synthesis using rubber as substrate
Heat-conducting medium material.Due to containing a large amount of elastomeric polymeric material in heat-conducting pad, (usual mass fraction is not less than 10, even
It is higher), cause the heating conduction of heat-conducting pad bad, thermal coefficient is at 0.7~4.0W/ (mK), and preparation process controls
It is required that when high, operating cost, difficulty it is big.
In addition, discovery electromagnetic interference problem still has while people solve heat dissipation problem by heat-conducting pad, because
This does not require nothing more than heat-conducting pad with good thermal conduction characteristic when heat-conducting pad is attached to chip surface, while having good
Microwave absorbing property.However, existing most of heat-conducting pad magnetic conductivity is low, do not have good microwave absorbing property.
Summary of the invention
The purpose of the invention is to overcome the shortcomings of above-mentioned background technique, provides one kind and have both and inhale wave and heating conduction
Composite material and preparation method.
Sheet type absorbing material is one kind using high polymer binder as substrate, is to absorb with magnetically soft alloy and ferromagnetic oxide powder
Agent has good absorption and shielding to electromagnetic noise by curtain coating or the flexible thin plate-shaped material of calendering technology preparation
Function.It is a discovery of the invention that if by the excellent magnetic powder of the good thermal conducting agent of thermal conductivity and absorbing property it is compound prepare it is a kind of thermally conductive
Wave suction composite material, the compound have good heat dissipation characteristics, while having good absorbing property, in addition, it have it is excellent
Different mechanical performance, weather-proof, corrosion-resistant and environmentally friendly etc. comprehensive performances, are expected to as a kind of novel ideal thermally conductive suction wave material
Material.
It is found based on the studies above, the thermally conductive Wave suction composite material of sheet type of the invention includes heat-conducting layer and suction wave layer, Shen
It asks someone by adjusting heat-conducting layer in composite wave-suction material and inhales the number of plies, thickness, formula and the technique of wave layer to regulate and control composite wood
The performance of material.
In some embodiments of the invention, it is preferred that the heat-conducting layer is 4-5 layers, and inhaling wave layer is 5-6 layers.
Further, weight percentage is calculated, and the heat-conducting layer includes the high polymer binder of 8%-15%,
The thermal conducting agent of 80%-87%, the auxiliary agent less than or equal to 5%；It is described to inhale the high polymer binder that wave layer includes 5%-17%,
The magnetic powder of 80%-92%, the auxiliary agent less than or equal to 3%.
Further, the high polymer binder is high molecular polymer, can be selected from polyurethane, polyacrylate, gather
One of methyl methacrylate, polyvinyl alcohol, ethyl cellulose and cellulose acetate-butyrate are a variety of.
Further, the thermal conducting agent includes one of silicon carbide, magnesia, aluminium oxide and zinc oxide or a variety of.
In some embodiments of the invention, it is preferred that the thermal conducting agent is spherical shape, and diameter is 0.5-3 μm.
Further, the magnetic powder includes one in manganese-zinc ferrite, nickel-zinc ferrite, iron nickel, iron sial and iron silicochromium
Kind is a variety of.
In some embodiments of the invention, it is preferred that the magnetic powder is with a thickness of 0.5-3 μm.
Further, the auxiliary agent includes one of dispersing agent, curing agent and curing catalysts or a variety of.
In some embodiments of the invention, it is preferred that dispersing agent, curing agent and solidification catalysis in the heat-conducting layer auxiliary agent
Agent, three's mass ratio are (1-3): (6-8): 1.
In some embodiments of the invention, it is preferred that dispersing agent, curing agent and solidification catalysis in the suction wave layer auxiliary agent
Agent, three's mass ratio are (2-4): (5-7): 1.
Further, the present invention also provides a kind of preparation methods of above-mentioned thermally conductive Wave suction composite material of sheet type, should
Method the following steps are included:
(1) high polymer binder, thermal conducting agent, solvent and auxiliary agent are uniformly mixed by percentage according to the required weight first, then are led to
It crosses casting technique and single layer heat-conducting type material is made in mixture；
(2) high polymer binder, magnetic powder, solvent and auxiliary agent are uniformly mixed by percentage according to the required weight, then pass through curtain coating
Single layer electro-magnetic wave absorption profile material is made in mixture by technique；
(3) m layers of heat-conducting layer and n-layer electromagnetic wave absorbing layer is taken to carry out laminating heat treatment respectively, it is final to obtain the double-deck thermally conductive suction
Wave composite wave-suction material.
In some embodiments of the invention, the heat-conducting layer thickness in monolayer is 0.07-0.13mm, preferably 0.10mm, institute
It states and inhales wave layer thickness in monolayer for 0.07-0.13mm, preferably 0.10mm.
Further, m >=1 in the step (3), n >=1.
In some embodiments of the invention, it is preferred that m=4 or 5, n=5 or 6.
In the method for the invention, the solvent is unlimited, it is desirable that can good dissolution binder and other auxiliary agents,
And it is used as much as possible environmentally friendly solvent.
In the method for the invention, not to it is described laminate heat treatment in hot pressing temperature, pressure and time limit,
It is required that each layer can combine closely, while the solidification of thermally conductive Wave suction composite material is abundant.
Thermally conductive Wave suction composite material of sheet type proposed by the present invention and preparation method thereof has following features:
(1) compared with traditional single Heat Conduction Material, electromagnetic wave absorbing layer is added, thermally conductive Wave suction composite material is made, this is multiple
Closing object has good heat dissipation characteristics, while having good absorbing property, in addition, it has excellent mechanical performance, flexible
Property, and it is weather-proof, corrosion-resistant and environmentally friendly.
(2) preparation method used in the present invention is simple, and technique is easily controllable, is conducive to be mass produced, and to multiple
It closes object and carries out abundant hot-pressing processing, it is ensured that thermally conductive realize between suction each layer of wave closely combines, and avoids generating air gap, make
The thermally conductive and absorbing property of composite material is more excellent, while being easily achieved the accurate control of thickness.
Detailed description of the invention
Fig. 1 is the thermally conductive Wave suction composite material structure of sheet type of the present invention；
Wherein, 1 heat dissipating layer is represented, 2 represent suction wave layer, and m and n are both greater than or equal to 1.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.Additional aspect and advantage of the invention will be set forth in part in the description, part
It will become apparent from the description below, or practice through the invention is recognized.It is only used to solve it should be appreciated that being described below
The present invention is released, is not intended to limit the present invention.
Term "comprising" used herein, " comprising ", " having ", " containing " or its any other deformation, it is intended that covering
Non-exclusionism includes.For example, composition, step, method, product or device comprising listed elements are not necessarily limited to those and want
Element, but may include not expressly listed other elements or such composition, step, method, product or device it is intrinsic
Element.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit
When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range
Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open
When range " 1 to 5 ", described range should be interpreted as including range " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to
5 ", " 1 to 3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range is intended to include its end
Value and all integers and score in the range.
Indefinite article "an" before element or component of the present invention (goes out the quantitative requirement of element or component with "one"
Occurrence number) unrestriction.Therefore "one" or "an" should be read as including one or at least one, and singular
Element or component also include plural form, unless the quantity obviously only refers to singular.
In addition, term " one embodiment " disclosed below, " some embodiments ", " example ", " specific example " or
The description of " some examples " etc. means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example include
In at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not required
For identical embodiment or example.
Moreover, technical characteristic involved in each embodiment of the present invention as long as they do not conflict with each other can
To be combined with each other.
Embodiment 1
As shown in Figure 1, the thermally conductive Wave suction composite material of sheet type is heat-conducting layer and the double-layer structure for inhaling wave layer.By adjusting multiple
It closes heat-conducting layer in absorbing material and inhales the number of plies, thickness, formula and the technique of wave layer to regulate and control the performance of composite material.
(1) the thermally conductive composition of layer and weight percentage are as follows:
High polymer binder: 10%
Thermal conducting agent: 86%
Auxiliary agent: 4%
The high polymer binder is polyurethane, it is desirable that can satisfy Heat Conduction Material casting technique requirement.
The thermal conducting agent is spherical carbide silicon, and diameter is 0.8-3 μm.
The auxiliary agent includes dispersing agent, polyurethane curing agent and curing catalysts, and three's mass ratio is 1:8:1.
The heat-conducting layer thickness in monolayer is 0.10mm.
(2) the suction wave composition of layer and weight percentage are as follows:
High polymer binder: 9%
Magnetic powder: 89%
Auxiliary agent: 2%
The high polymer binder is polyacrylate, it is desirable that can satisfy absorbing material casting technique requirement.
The magnetic powder is iron sial, and with a thickness of 0.5 μm -2 μm, radius-thickness ratio (diametrical direction size and thickness direction size) is big
In 50:1.
The auxiliary agent includes dispersing agent, polyacrylate curing agent and curing catalysts, and three's mass ratio is 3:6:1.
The suction wave layer thickness in monolayer is 0.10mm.
Preparation method:
High polymer binder polyurethane, silicon carbide, solvent and other auxiliary agents are uniformly mixed in proportion first, then pass through stream
Prolonging technique thickness in monolayer is made in mixture is 0.10mm Heat Conduction Material.In proportion by high polymer binder polyacrylate, iron
Sial, solvent and other auxiliary agents are uniformly mixed, then it is that 0.10mm inhales wave material that thickness in monolayer, which is made, in mixture by casting technique
Material.5 layers of Heat Conduction Material and 5 layers of absorbing material are taken to carry out laminating heat treatment respectively, it is final to obtain as previously described with a thickness of 0.5mm
The thermally conductive Wave suction composite material of sheet type.
The heat treatment that laminates is that heat-conducting layer and absorbed layer are stacked together, then carries out hot-forming.Hot pressing temperature
It is 135 DEG C, pressure 50MPa, the time is 5 minutes, and heat-conducting layer and suction wave layer can combine closely, and solidify abundant.
Comparison example 1
This example is the comparison example of embodiment 1.
The raw material and proportion of heat-conducting layer in selection example 1 take 10 layers of Heat Conduction Material according to the preparation process in embodiment 1
The standby sheet type Heat Conduction Material with a thickness of 0.5mm of hot pressing.
Embodiment 2
As shown in Figure 1, the thermally conductive Wave suction composite material of sheet type is heat-conducting layer and the double-layer structure for inhaling wave layer.By adjusting multiple
It closes heat-conducting layer in absorbing material and inhales the number of plies, thickness, formula and the technique of wave layer to regulate and control the performance of composite material.
(1) the thermally conductive composition of layer and weight percentage are as follows:
High polymer binder: 12%
Thermal conducting agent: 84%
Auxiliary agent: 4%
The high polymer binder is polymethyl methacrylate, it is desirable that can satisfy Heat Conduction Material casting technique requirement.
The thermal conducting agent is ball-aluminium oxide, and diameter is 1-3 μm.
The auxiliary agent includes dispersing agent, polymethyl methacrylate curing agent and curing catalysts, and three's mass ratio is 3:
6:1。
The heat-conducting layer thickness in monolayer is 0.10mm.
(2) the suction wave composition of layer and weight percentage are as follows:
High polymer binder: 8%
Magnetic powder: 90%
Auxiliary agent: 2%
The high polymer binder is polyurethane, it is desirable that can satisfy absorbing material casting technique requirement.
The magnetic powder is spherical nickel-zinc ferrite, and diameter is 0.5-3 μm.
The auxiliary agent includes dispersing agent, polyurethane curing agent and curing catalysts, and three's mass ratio is 4:5:1.
The suction wave layer thickness in monolayer is 0.10mm.
Preparation method:
High polymer binder polymethyl methacrylate, aluminium oxide, solvent and other auxiliary agents are mixed in proportion first equal
It is even, then it is 0.10mm Heat Conduction Material that thickness in monolayer, which is made, in mixture by casting technique.High polymer binder is gathered in proportion
Urethane, nickel-zinc ferrite, solvent and other auxiliary agents are uniformly mixed, then thickness in monolayer is made in mixture by casting technique and is
0.10mm absorbing material.4 layers of Heat Conduction Material and 6 layers of absorbing material are taken to carry out laminating heat treatment respectively, it is final to obtain as previously described
The thermally conductive Wave suction composite material of the sheet type with a thickness of 0.5mm.
The heat treatment that laminates is that heat-conducting layer and absorbed layer are stacked together, then carries out hot-forming.Hot pressing temperature
It is 150 DEG C, pressure 50MPa, the time is 4 minutes, and heat-conducting layer and suction wave layer can combine closely, and solidify abundant.
Comparison example 2
This example is the comparison example of embodiment 2.
The raw material and proportion of heat-conducting layer and absorbed layer in selection example 2, take 3 layers according to the preparation process in embodiment 2
Heat Conduction Material and the standby thermally conductive Wave suction composite material of sheet type with a thickness of 0.5mm of 7 layers of absorbing material hot pressing.
Embodiment 3
As shown in Figure 1, the thermally conductive Wave suction composite material of sheet type is heat-conducting layer and the double-layer structure for inhaling wave layer.By adjusting multiple
It closes heat-conducting layer in absorbing material and inhales the number of plies, thickness, formula and the technique of wave layer to regulate and control the performance of composite material.
(1) the thermally conductive composition of layer and weight percentage are as follows:
High polymer binder: 14%
Thermal conducting agent: 82%
Auxiliary agent: 4%
The high polymer binder is ethyl cellulose, it is desirable that can satisfy Heat Conduction Material casting technique requirement.
The thermal conducting agent is spherical zinc oxide, and diameter is 0.5-2 μm.
The auxiliary agent includes dispersing agent, ethyl cellulose curing agent and curing catalysts, and three's mass ratio is 3:6:1.
The heat-conducting layer thickness in monolayer is 0.10mm.
(2) the suction wave composition of layer and weight percentage are as follows:
High polymer binder: 15%
Magnetic powder: 82%
Auxiliary agent: 3%
The high polymer binder is polyvinyl alcohol, it is desirable that can satisfy absorbing material casting technique requirement.
The magnetic powder is iron silicochromium, and with a thickness of 1 μm -3 μm, radius-thickness ratio (diametrical direction size and thickness direction size) is greater than
30:1.
The auxiliary agent includes dispersing agent, polyvinyl alcohol curing agent and curing catalysts, and three's mass ratio is 2:7:1.
The suction wave layer thickness in monolayer is 0.10mm.
Preparation method:
High polymer binder ethyl cellulose, zinc oxide, solvent and other auxiliary agents are uniformly mixed in proportion first, then led to
Crossing casting technique and thickness in monolayer is made in mixture is 0.10mm Heat Conduction Material.In proportion by high polymer binder polyvinyl alcohol,
Iron silicochromium, solvent and other auxiliary agents are uniformly mixed, then it is that 0.10mm inhales wave that thickness in monolayer, which is made, in mixture by casting technique
Material.Take 4 layers of Heat Conduction Material and 6 layers of absorbing material to carry out laminating heat treatment respectively, it is final obtain as previously described with a thickness of
The thermally conductive Wave suction composite material of the sheet type of 0.5mm.
The heat treatment that laminates is that heat-conducting layer and absorbed layer are stacked together, then carries out hot-forming.Hot pressing temperature
It is 120 DEG C, pressure 50MPa, the time is 7 minutes, and heat-conducting layer and suction wave layer can combine closely, and solidify abundant.
Comparison example 3
This example is the comparison example of embodiment 3.
The raw material and proportion of heat-conducting layer and absorbed layer in selection example 3, take 2 layers according to the preparation process in embodiment 1
Heat Conduction Material and the standby thermally conductive Wave suction composite material of sheet type with a thickness of 0.5mm of 8 layers of absorbing material hot pressing.
It is (anti-that absorbing property is carried out to the thermally conductive absorbing material of sheet type prepared by embodiment 1-3 and comparison example 1-3 respectively
Penetrate loss) and thermal coefficient tested, test result is as shown in table 1:
1 absorbing property of table (reflection loss) and Determination of conductive coefficients result
As can be seen from Table 1, compared with traditional single Heat Conduction Material, the thermally conductive suction wave of sheet type provided by the invention is compound
The microwave absorbing property of material significantly improves, and absorption band is wide, while the heating conduction of composite material does not occur apparent decline.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of thermally conductive Wave suction composite material of sheet type, which is characterized in that the thermally conductive Wave suction composite material of sheet type includes to lead
Thermosphere and suction wave layer.
2. the thermally conductive Wave suction composite material of sheet type according to claim 1, which is characterized in that the heat-conducting layer is 4-5 layers,
Inhaling wave layer is 5-6 layers.
3. the thermally conductive Wave suction composite material of sheet type according to claim 1, which is characterized in that weight percentage
It calculates, the heat-conducting layer includes the high polymer binder of 8%-15%, the thermal conducting agent of 80%-87%, helping less than or equal to 5%
Agent；It is described to inhale the high polymer binder that wave layer includes 5%-17%, the magnetic powder of 80%-92%, the auxiliary agent less than or equal to 3%.
4. the thermally conductive Wave suction composite material of sheet type according to claim 3, which is characterized in that the high polymer binder is
High molecular polymer, can selected from polyurethane, polyacrylate, polymethyl methacrylate, polyvinyl alcohol, ethyl cellulose and
One of cellulose acetate-butyrate is a variety of.
5. the thermally conductive Wave suction composite material of sheet type according to claim 3, which is characterized in that the thermal conducting agent includes carbonization
One of silicon, magnesia, aluminium oxide and zinc oxide are a variety of, it is preferred that the thermal conducting agent is spherical shape, and diameter is 0.5-3 μm.
6. the thermally conductive Wave suction composite material of sheet type according to claim 3, which is characterized in that the magnetic powder includes MnZn iron
One of oxysome, nickel-zinc ferrite, iron nickel, iron sial and iron silicochromium are a variety of, it is preferred that the magnetic powder is with a thickness of 0.5-3 μ
m。
7. the thermally conductive Wave suction composite material of sheet type according to claim 3, which is characterized in that the auxiliary agent includes dispersion
One of agent, curing agent and curing catalysts are a variety of, it is preferred that dispersing agent in the heat-conducting layer auxiliary agent, curing agent and
Curing catalysts, three's mass ratio are (1-3): (6-8): 1；Preferably, dispersing agent in the suction wave layer auxiliary agent, curing agent and solid
Change catalyst, three's mass ratio is (2-4): (5-7): 1.
8. the preparation method of the thermally conductive Wave suction composite material of sheet type according to claim 1-7, which is characterized in that
Method includes the following steps:
(1) high polymer binder, thermal conducting agent, solvent and auxiliary agent are uniformly mixed by percentage according to the required weight first, then pass through stream
Prolong technique and single layer heat-conducting type material is made in mixture；
(2) high polymer binder, magnetic powder, solvent and auxiliary agent are uniformly mixed by percentage according to the required weight, then pass through casting technique
Single layer electro-magnetic wave absorption profile material is made in mixture；
(3) m layers of heat-conducting layer and n-layer electromagnetic wave absorbing layer are taken to carry out laminating heat treatment respectively, the final thermally conductive suction wave of bilayer that obtains is answered
Close absorbing material.
9. the preparation method of the thermally conductive Wave suction composite material of sheet type according to claim 8, which is characterized in that described thermally conductive
Layer thickness in monolayer is 0.07-0.13mm, preferably 0.10mm, and the suction wave layer thickness in monolayer is 0.07-0.13mm, preferably
0.10mm。
10. the preparation method of the thermally conductive Wave suction composite material of sheet type according to claim 8, which is characterized in that the step
Suddenly m >=1 in (3), n >=1, it is preferred that m=4 or 5, n=5 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515575.1A CN109664567B (en) | 2018-12-12 | 2018-12-12 | Thin-sheet type heat-conducting wave-absorbing composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515575.1A CN109664567B (en) | 2018-12-12 | 2018-12-12 | Thin-sheet type heat-conducting wave-absorbing composite material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109664567A true CN109664567A (en) | 2019-04-23 |
| CN109664567B CN109664567B (en) | 2020-08-21 |
Family
ID=66143735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811515575.1A Active CN109664567B (en) | 2018-12-12 | 2018-12-12 | Thin-sheet type heat-conducting wave-absorbing composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109664567B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110494028A (en) * | 2019-08-22 | 2019-11-22 | 贵州师范大学 | A kind of preparation method of the human body electromagnetic shielding protection patch for touch-screen mobile phone |
| CN111587058A (en) * | 2020-05-18 | 2020-08-25 | 横店集团东磁股份有限公司 | Wave-absorbing patch with periodic structure and preparation method thereof |
| CN111589675A (en) * | 2020-05-18 | 2020-08-28 | 横店集团东磁股份有限公司 | High-thermal-conductivity electromagnetic wave absorption composite sheet and preparation method thereof |
| CN112409808A (en) * | 2020-11-13 | 2021-02-26 | 中南林业科技大学 | Metalized wooden wave-absorbing plate and preparation method thereof |
| CN113059876A (en) * | 2021-03-20 | 2021-07-02 | 中南林业科技大学 | Shell structure wave-absorbing material and preparation method thereof |
| CN113199837A (en) * | 2021-05-12 | 2021-08-03 | 深圳和畅电磁材料有限公司 | Preparation method of high-performance heat-conducting wave-absorbing composite material |
| CN114654823A (en) * | 2022-03-29 | 2022-06-24 | 重庆科技学院 | Mn-Zn ferrite-FeSiAl composite wave-absorbing material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106165559A (en) * | 2014-03-25 | 2016-11-23 | 乐金华奥斯有限公司 | electromagnetic wave shielding sheet and preparation method thereof |
| CN107880798A (en) * | 2017-11-29 | 2018-04-06 | 横店集团东磁股份有限公司 | A kind of heat conduction wave absorbing patch and preparation method thereof |
-
2018
- 2018-12-12 CN CN201811515575.1A patent/CN109664567B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106165559A (en) * | 2014-03-25 | 2016-11-23 | 乐金华奥斯有限公司 | electromagnetic wave shielding sheet and preparation method thereof |
| CN107880798A (en) * | 2017-11-29 | 2018-04-06 | 横店集团东磁股份有限公司 | A kind of heat conduction wave absorbing patch and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110494028A (en) * | 2019-08-22 | 2019-11-22 | 贵州师范大学 | A kind of preparation method of the human body electromagnetic shielding protection patch for touch-screen mobile phone |
| CN111587058A (en) * | 2020-05-18 | 2020-08-25 | 横店集团东磁股份有限公司 | Wave-absorbing patch with periodic structure and preparation method thereof |
| CN111589675A (en) * | 2020-05-18 | 2020-08-28 | 横店集团东磁股份有限公司 | High-thermal-conductivity electromagnetic wave absorption composite sheet and preparation method thereof |
| CN111587058B (en) * | 2020-05-18 | 2021-06-25 | 横店集团东磁股份有限公司 | Wave-absorbing patch with periodic structure and preparation method thereof |
| CN111589675B (en) * | 2020-05-18 | 2022-02-08 | 横店集团东磁股份有限公司 | High-thermal-conductivity electromagnetic wave absorption composite sheet and preparation method thereof |
| CN112409808A (en) * | 2020-11-13 | 2021-02-26 | 中南林业科技大学 | Metalized wooden wave-absorbing plate and preparation method thereof |
| CN113059876A (en) * | 2021-03-20 | 2021-07-02 | 中南林业科技大学 | Shell structure wave-absorbing material and preparation method thereof |
| CN113199837A (en) * | 2021-05-12 | 2021-08-03 | 深圳和畅电磁材料有限公司 | Preparation method of high-performance heat-conducting wave-absorbing composite material |
| CN114654823A (en) * | 2022-03-29 | 2022-06-24 | 重庆科技学院 | Mn-Zn ferrite-FeSiAl composite wave-absorbing material and preparation method thereof |
| CN114654823B (en) * | 2022-03-29 | 2023-04-25 | 重庆科技学院 | Mn-Zn ferrite-FeSiAl composite wave-absorbing material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109664567B (en) | 2020-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109664567A (en) | A kind of thermally conductive Wave suction composite material of sheet type and preparation method thereof | |
| CN104981138B (en) | A kind of manufacturing method for being electromagnetically shielded heat dissipation film | |
| KR101701501B1 (en) | Excellent interlayer adhesive graphite sheet for composite sheet with EMI shield and heat radiation, Composite sheet with EMI shield and heat radiation containing the same and Manufacturing method thereof | |
| CN110157316A (en) | Heat-insulated suction wave material of one kind and preparation method thereof | |
| CN204350556U (en) | A kind of electromagnetic shielding heat dissipation film | |
| JPWO2018181606A1 (en) | Heat transfer member and heat dissipation structure including the same | |
| KR101549986B1 (en) | Composition for complex sheet, complex sheet comprising the same, and preparation method of the complex sheet | |
| KR101727159B1 (en) | Composite sheet of using wierless charging and fabricationg method the same | |
| JP2006504272A5 (en) | ||
| US20100301261A1 (en) | Electromagnetic wave absorbing and heat dissipation material | |
| KR20150111469A (en) | Electromagnetic wave shielding sheet, and the preparation method for the same | |
| CN104972709B (en) | Ripple composite membrane and its manufacture method are inhaled in height radiating | |
| CN107880798A (en) | A kind of heat conduction wave absorbing patch and preparation method thereof | |
| WO2012023685A1 (en) | Composition for a composite sheet comprising core-shell type filler particles, a composite sheet comprising the same and a production method for the composite sheet | |
| KR20170020700A (en) | Composite multi-layer sheet with EMI shield and heat radiation and Manufacturing method thereof | |
| TWM420148U (en) | Thin mental substrate with high thermal conductivity | |
| KR20160126188A (en) | Electro magnetic shielding sheet and manufacturing method of the same | |
| CN107690270A (en) | Ripple electromagnetic material and preparation method thereof is inhaled in a kind of paste heat conduction | |
| CN111554466B (en) | Heat-conducting wave-absorbing composite magnetic sheet with periodic structure and preparation method thereof | |
| KR20150115055A (en) | Electro magnetic wave shielding sheet having heat relese fuction, and the preparation method for the same | |
| CN110746782A (en) | High-performance wave-absorbing heat-conducting silica gel gasket convenient for die cutting and laminating and preparation method thereof | |
| KR101900528B1 (en) | ElECTROMAGNETIC WAVE SHIELDING SHEET AND THE PREPARATION METHOD FOR THE SAME | |
| JP2011187671A (en) | Multilayer woody radio wave absorbing board material and manufacturing method thereof | |
| CN209693361U (en) | A kind of lamination layer structure and shielding material | |
| JP2004119450A (en) | Radio wave absorber and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |