CN103781338B - Multi-functional thin sheet and manufacturing method thereof - Google Patents
Multi-functional thin sheet and manufacturing method thereof Download PDFInfo
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- CN103781338B CN103781338B CN201310389370.4A CN201310389370A CN103781338B CN 103781338 B CN103781338 B CN 103781338B CN 201310389370 A CN201310389370 A CN 201310389370A CN 103781338 B CN103781338 B CN 103781338B
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Abstract
The invention relates to a multi-functional thin sheet and a manufacturing method thereof, more specifically, the invention relates to the multi-functional thin sheet which has excellent thermal diffusion performance, light shielding function, electromagnetic shielding and shock absorption functions, and the manufacturing method thereof. The multi-functional thin sheet comprises a first electromagnetic shielding and heat conduction metal layer, a first thermal diffusion and thermal radiation extinction layer, a bonding layer, a second electromagnetic shielding and heat conduction metal layer, and a second thermal diffusion and thermal radiation extinction layer. The top of the first electromagnetic shielding and heat conduction metal layer is formed with and comprises copper particles. The bonding layer is formed on the top of the first thermal diffusion and thermal radiation extinction layer. The second electromagnetic shielding and heat conduction metal layer is formed on the top of the bonding layer. The top of the second electromagnetic shielding and heat conduction metal layer is formed with and comprises copper particles. Therefore, the multi-functional thin sheet is ensured to have excellent vibration absorption and shock absorption functions, and excellent electric ground function and thermal diffusion and thermal radiation functions.
Description
Technical field
The present invention relates to have the multi-functional thin-layer tablet of excellent heat diffusivity energy and electromagnetic shielding and impact absorbing function
Material, it can apply to the electronic product may with electromagnetic wave and the thermally-induced problem for producing.
Background technology
Such as " the chip power crisis of microprocessor（chip power crisis）" indicated, with regard to electronic product heat
The seriousness of problem has been aggravated recently.Market to " less and more rapidly " need accelerate mounting technique and semiconductor technology
Development, so as to bring the increase of power consumption density, and increased for reducing noise function or prevent from being not required to
The radiation-emitting wanted（RE）Environmentally friendly electronic equipment needs.According to existing technology develop, " low dynamics consumption " with
Do not go up " high speed ".Ask with regard to noiselessness high-heating radiation material, low dynamics equipment, the Heat Flow Analysis software etc. for electronic equipment
Topic has been changed to important problem, its proposition（raise）As the solution of heat generation problem.Related feature, for example
Cooling power reduces or cool down noise suppression very big difference in electronic product.Therefore, trend in recent years is towards for hot spoke
Material, equipment design or the Materials penetrated.
When installing, small design elements on the home panel can not effectively conduct or dissipation design comes with light weight, small
During the heat that the inside of digital communication and electric power and electronic product with simple structure produces, in operation, high-tech communication
And digital power and electronic product are generally vulnerable to the keeping life of functional deterioration, failure and reduction.
Further, because recent high-tech digital product is in addition to small design, towards becoming for high-performance and high power capacity
Gesture develops, so it is considered as determining the very important factor of Performance And Reliability of digital product, determines if its tool
Have for semiconductor chiop, battery installation section part, backlight（backlight）Etc. effective dissipation of heat function.
The quick and extensive distribution of telecommunication apparatus in recent years causes interest and the concern increased electromagnetic wave illeffectss.This
Outward, show that electromagnetic wave negatively affects the research of human body and finds to continue to present.Therefore, it is industrial to advance in order to protect public health
So as to develop electromangnetic spectrum.
It is commonly used for the suction that the conduction of heat and thermal-radiating method of high-tech digital product are directed to use with for heating equipment
Hot device（Fin, heat sink）, such as CPU or quasiconductor, or heat conductive pad or heat radiation sheet material are coated onto into heat production part
On, such as backlight or battery, so as to the heat of generation of conducting or dissipate.
At this point, by metal material, such as heat extractor that aluminum is formed, heat radiation region can be made most by using typically
Bigization so as to which projecting part is maximized on thickness and surface area, or using nearest thick-layer ceramics heat extractor.For big
Heat radiation region for, heat extractor is types of sheet materials heat extractor, its have graphite serve as a contrast paper tinsel（graphite foil）, Huo Zheshi
The coating of black cream or white carbon black.
According to the prior art for being related to the types of sheet materials heat extractor for thermal diffusion, published patent No. 2008- of Korea
0076761 discloses thermal diffusion sheet material, and it includes the heat formed by the compositionss comprising organic polymer and conduction of heat filler
Conducting shell；Formed by metal material and be applied to the thermal diffusion layer on heat conduction layer surface；And be formed from an electrically-insulative material simultaneously
And it is applied to the thermal insulation layer on thermal diffusion layer surface.
Such heat extractor is needed so that thickness is increased to into maximum, so as to improve heat-radiating properties, so effectively conducting
Or there is restriction on the heat produced with the digital power and electronic equipment internal of the design of small, thin and light weight that dissipates.
Overcome traditional heat radiation sheet material shortcoming as preparing, for example, be difficult to, using small design, easily find that electric power is short
Road, discharges granule and is easy to the thick-layer type heat extractor for interrupting, and there is a problem of with regard to heat-radiating properties significant degradation.
In order to solve this problem, the inventor of the present invention is made that lasting research, so as to develop intelligence is can be applicable to
Energy mobile phone, panel computer and mobile device, such as LCD, OLED, BLU, FPCB etc., and the different parts of various electronic products
Multi-functional thin-layer sheet, so that it is guaranteed that excellent heat diffusivity can and electro-magnetic screen function and assembling cohesive, air-tightness,
Water resistance, light-shielding property and anti-vibration and impact absorbing function, therefore complete the present invention.
The content of the invention
The invention provides multi-functional thin-layer sheet, it not only has opposing altofrequency radiation-emitting（RE）Electromagnetic shielding
Function, and the power ground function of electrostatic is protected the circuit from, and with excellent conduction of heat, thermal diffusion and heat radiation work(
Can, and the derivative anti-vibration of elasticity and impact absorbing function.
According to the first preferred embodiment of the present invention, there is provided and can be electromagnetically shielded and impact with heat diffusivity and inhale
The multi-functional thin-layer sheet of function is received, it includes：First electromagnetic shielding and heat-transfer metal layer；First thermal diffusion and heat radiation disappear
Photosphere（matt layer）, it is formed at the top of the first electromagnetic shielding and heat-transfer metal layer, and comprising copper microgranule；Bonding
Layer, it is formed at the top of the first thermal diffusion and heat radiation extinction layer；Second electromagnetic shielding and heat-transfer metal layer, it is in bonding
The top of layer is formed；And second thermal diffusion and heat radiation extinction layer, it is on the second electromagnetic shielding and the top of heat-transfer metal layer
Portion is formed, and comprising copper microgranule.
Can be with electromagnetic shielding and the multi-functional thin-layer tablet of impact absorbing function with heat diffusivity according to embodiment
Material may further include, the polymer elasticity cushion formed on the bottom of the first electromagnetic shielding and heat-transfer metal layer.
Can be with electromagnetic shielding and the multi-functional thin-layer tablet of impact absorbing function with heat diffusivity according to embodiment
Material may further include, the mould release membrance formed on polymer elasticity cushion bottom（release film）Layer.
Can be with electromagnetic shielding and the multi-functional thin-layer tablet of impact absorbing function with heat diffusivity according to embodiment
Material may further include, in the first electromagnetic shielding and bottom and the second thermal diffusion and the heat radiation extinction layer of heat-transfer metal layer
Top in the conduction pressure-sensitive adhesive layer that formed at least one.
Can be with electromagnetic shielding and the multi-functional thin-layer tablet of impact absorbing function with heat diffusivity according to embodiment
Material may further include, the pressure-sensitive adhesive layer of function, and it has thermostability, heat-conductive characteristic and light-shielding property, and is
Formed on the bottom of the first electromagnetic shielding and heat-transfer metal layer.
Can be with electromagnetic shielding and the multi-functional thin-layer tablet of impact absorbing function with heat diffusivity according to embodiment
Material may further include, the black insulation passivation film layer formed on the top of the second thermal diffusion and heat radiation extinction layer.
Can be with electromagnetic shielding and the multi-functional thin-layer tablet of impact absorbing function with heat diffusivity according to embodiment
Material may further include, the protecting film formed on the top of conduction pressure-sensitive adhesive layer（Mobile thin film, removal film）
Layer, wherein conduction pressure-sensitive adhesive layer is formed on the top of the second thermal diffusion and heat radiation extinction layer.
Can be with electromagnetic shielding and the multi-functional thin-layer tablet of impact absorbing function with heat diffusivity according to embodiment
Material may further include, the release film layer formed on the bottom of conduction pressure-sensitive adhesive layer, wherein conduction pressure-sensitive adhesive layer is
Formed on the bottom of the first electromagnetic shielding and heat-transfer metal layer.
Can independently by selected from following according to the first and second of embodiment the electromagnetic shieldings and heat-transfer metal layer
It is prepared by the material in the group that items are constituted：The Jing chemical etchings of its one or both sides or anodised aluminium foil；Its side or two
The Copper Foil that side Jing delustrings are processed；The tinfoil paper etched with its one or both sides.
Independently there can be copper micro- by its surface according to the first and second thermal diffusions of embodiment and heat radiation extinction layer
The prominent copper lamina of grain is formed；Or have copper microgranule to project and formed on copper lamina ceramic heat radiation thin layer by its surface
Copper lamina is formed.
Can be by the material in the group constituted selected from the following according to the polymer elasticity cushion of embodiment
Prepare：Foam sponge type polyurethane, acrylic resin（acryl resin）, polypropylene, ethylene propylene diene monomer
（EPDM）, ethylene vinyl acetate（EVA）And silicone（Silicones, silicone）.
Can be by by will be selected from nickel, nickel-graphite, conductive black, copper according to the conduction pressure-sensitive adhesive layer of embodiment
Conductive metal powder with the group of silver composition, is dispersed in selected from acrylic resin and urethanes（urethane）Tree
The pressure-sensitive adhesion cream prepared at least one resin of fat is formed.
According to the function of embodiment（functional）Pressure-sensitive adhesive layer can be by by will be selected from nickel, nickel-graphite, black
Functional powders in color pigment and aluminium oxide, are dispersed at least one selected from acrylic resin and urethane resin
The pressure-sensitive adhesion cream prepared in resin is formed.
Second preferred implementation of the invention, there is provided prepare and there is heat diffusivity and can be electromagnetically shielded and rush
The method for hitting the multi-functional thin-layer sheet of absorption function, it includes：（S1）In the first electromagnetic shielding and heat that are formed by metal forming
On the top of conductive metal layer, the first thermal diffusion and heat radiation extinction layer are formed, wherein the first thermal diffusion and heat radiation extinction layer
Copper microgranule with a large amount of protrusions for being connected to its surface；（S2）First thermal diffusion and hot spoke are applied adhesive to by coating
Penetrate on the top of extinction layer, so as to form adhesive layer；（S3）The electromagnetic shielding of lamination second and conduction of heat on the top of adhesive layer
Metal level, wherein the second electromagnetic shielding and heat-transfer metal layer are formed by metal forming；And（S4）In the second electromagnetic shielding and heat
On the top of conductive metal layer, the second thermal diffusion and heat radiation extinction layer are formed, wherein the second thermal diffusion and heat radiation extinction layer
Copper microgranule with a large amount of protrusions for being connected to its surface.
Can be included according to the multi-functional thin-layer sheet of embodiment, at the first electromagnetic shielding and the bottom of heat-transfer metal layer
Portion or the polymer elasticity cushion formed on the top of thermal diffusion and heat radiation extinction layer.For with heat diffusivity can and
The preparation method of the multi-functional thin-layer sheet of electromagnetic shielding and impact absorbing function may further include：In step（S1）It
Before, on the top of polymer elasticity cushion, it is laminated the first electromagnetic shielding and heat-transfer metal layer formed by metal forming.
For according to embodiment with heat diffusivity can and electromagnetic shielding and impact absorbing function it is multi-functional thin
The preparation method of layer of sheet material may further include：By being coated with conduction pressure-sensitive adhesion cream, so as in the first electromagnetic shielding
It is upper with least one of the top of the bottom of heat-transfer metal layer and the second thermal diffusion and heat radiation extinction layer to form conduction pressure
Quick adhesive layer, wherein pressure-sensitive adhesion cream are by will select from the group being made up of nickel, nickel-graphite, conductive black, copper and silver
Conductive metal powder be dispersed at least one resin of acrylic resin and urethane resin and prepare.
For according to embodiment with heat diffusivity can and electromagnetic shielding and impact absorbing function it is multi-functional thin
The preparation method of layer of sheet material may further include：By being coated with function pressure-sensitive adhesion cream, so as in the first electromagnetic shielding
With function pressure-sensitive adhesive layer is formed on the bottom of heat-transfer metal layer, wherein pressure-sensitive adhesion cream is by will be selected from nickel, nickel-stone
Functional powders in ink, black pigment and aluminium oxide are dispersed in selected from acrylic resin and urethane resin at least
Prepare in a kind of resin.
For according to embodiment with heat diffusivity can and electromagnetic shielding and impact absorbing function it is multi-functional thin
The preparation method of layer of sheet material may further include：Black insulation is formed on the top of the second thermal diffusion and heat radiation extinction layer
Passivation film layer.
For according to embodiment with heat diffusivity can and electromagnetic shielding and impact absorbing function it is multi-functional thin
The preparation method of layer of sheet material may further include：Protection film layer is formed on the top of conduction pressure-sensitive adhesive layer, wherein conducting
Pressure-sensitive adhesion is formed on the top of the second thermal diffusion and heat radiation extinction layer.
For according to embodiment with heat diffusivity can and electromagnetic shielding and impact absorbing function it is multi-functional thin
The preparation method of layer of sheet material may further include：Release film layer is formed on the bottom of conduction pressure-sensitive adhesive layer, wherein conducting
Pressure-sensitive adhesive layer is formed on the bottom of the first electromagnetic shielding and heat-transfer metal layer.
3rd preferred implementation of the invention, there is provided and can be electromagnetically shielded and impact with heat diffusivity and inhale
Receive the digital power comprising multi-functional thin-layer sheet and electronic product of function.
4th preferred implementation of the invention, there is provided and can be electromagnetically shielded and impact with heat diffusivity and inhale
The multi-functional thin-layer sheet of function is received, it includes：The thermal diffusion prepared using the compositionss comprising inorganic material and heat radiation layer；
Electromagnetic shielding and heat-transfer metal layer；Using selected from foam sponge type polyurethane, acrylic resin, polypropylene, ethylene, propylene
Diene monomers（EPDM）, ethylene vinyl acetate（EVA）The polymer elasticity cushion prepared with the material of silane；Function is pressure-sensitive
Adhesive layer；And release film layer.At this point, using from by aluminium nitride, boron nitride, aluminium oxide, aluminum oxide, aluminium hydroxide,
At least four selected in the group of magnesium oxide, silicon dioxide, silicon-zirconium and silicate compound composition, and from by ferrum oxide
The inorganic pigment selected in the group of pigment, charcoal blacks, manganese oxide pigment, magnesium oxide pigment and TiO 2 pigment composition
Mixture, prepares inorganic material, and the usage amount of wherein inorganic material is 65 to the 85wt% relative to composition total weight.Function
Pressure-sensitive adhesive layer is coated with pressure-sensitive adhesion cream and is formed by being coated on release film layer, and pressure-sensitive adhesion cream is by by nickel
Or nickel-graphite and conductive metal powder are dispersed in what is prepared in resin.
Further comprising water-soluble alcohol based solvent and can be divided according to the compositionss comprising inorganic material of embodiment
Powder.
Can be by selected from the Jing chemical etchings of its one or both sides according to the electromagnetic shielding and heat-transfer metal layer of embodiment
Or anodised aluminium foil；The Copper Foil that the Jing delustrings of its one or both sides are processed；The tinfoil paper composition etched with its one or both sides
Group in material and prepare.
5th preferred implementation of the invention, there is provided using the electronic product of multi-functional thin-layer sheet.
And can be electromagnetically shielded with heat diffusivity and the multi-functional thin-layer sheet of impact absorbing function allows to be arranged on master
Various small design elements on panel, effectively spread and dissipate have light weight, small and simple structure digital communication with
And the heat that electric power and electronic product inside produce.Further, multi-functional thin-layer sheet can be applicable to smart mobile phone, panel computer
And mobile device, and display device, the part of such as LCD, OLED, BLU, FPCB, window panel etc., so as to realize assembling bonding
Property, air-tightness, water resistance, light-shielding property and weakening and shock absorbing capability, are very suitable for high-tech mobile device
As ultra-thin multifunctional product, and can be with large-scale production, as a result with good price competitiveness in terms of manufacturing process.
Description of the drawings
Fig. 1 is to show and be electromagnetically shielded and impact absorbing with heat diffusivity according to one embodiment of the present invention
The schematic cross section of the multi-functional thin-layer sheet of function.
Fig. 2 is to show and to be electromagnetically shielded and impact with heat diffusivity according to another embodiment of the invention to inhale
Receive the schematic cross section of the multi-functional thin-layer sheet of function.
Fig. 3 is to show and to be electromagnetically shielded and impact with heat diffusivity according to another embodiment of the invention to inhale
Receive the schematic cross section of the multi-functional thin-layer sheet of function.
Fig. 4 is to show and to be electromagnetically shielded and impact with heat diffusivity according to another embodiment of the invention to inhale
Receive the schematic cross section of the multi-functional thin-layer sheet of function.
Fig. 5 is to show and to be electromagnetically shielded and impact with heat diffusivity according to another embodiment of the invention to inhale
Receive the schematic cross section of the multi-functional thin-layer sheet of function.
Fig. 6 is figure of the multi-functional thin-layer sheet as the electromagnet shield effect of electromagnetic frequency function for showing the present invention.
Specific embodiment
Hereinafter, will be described in detail the present invention.
The present invention relates to there is the multi-functional thin-layer sheet of heat diffusivity energy and electromagnetic shielding and impact absorbing function, its
Including：First electromagnetic shielding and heat-transfer metal layer；First thermal diffusion and heat radiation extinction layer, it is in the first electromagnetic shielding and heat
The top of conductive metal layer is formed, and comprising copper microgranule；Adhesive layer, it is at the first thermal diffusion and the top of heat radiation extinction layer
Formed；Second electromagnetic shielding and heat-transfer metal layer, it is formed at the top of adhesive layer；And second thermal diffusion and heat radiation disappear
Photosphere, it is formed at the top of the second electromagnetic shielding and heat-transfer metal layer, and comprising copper microgranule.
An embodiment of the invention, with thermal diffusion and electromagnetic shielding and impact absorbing function it is multi-functional
Thin-layer sheet can have structure as shown in Figure 1, and it includes release film layer 50；Polymer elasticity cushion 40；Conduction pressure
Quick adhesive layer 60；First electromagnetic shielding and heat-transfer metal layer 10；First thermal diffusion and heat radiation extinction layer 30；Adhesive layer 20；
Second electromagnetic shielding and heat-transfer metal layer 11；Second thermal diffusion and heat radiation extinction layer 31；Conducting adhesive layer 60；And protection
Film layer 90.
According to another implementation of the invention, with heat diffusivity can and electromagnetic shielding and impact absorbing function
Multi-functional thin-layer sheet can have structure as shown in Figure 2, and it includes release film layer 50；Polymer elasticity cushion 40；
Function pressure-sensitive adhesive layer 70；First electromagnetic shielding and heat-transfer metal layer 10；First thermal diffusion and heat radiation extinction layer 30；Bonding
Layer 20；Second electromagnetic shielding and heat-transfer metal layer 11；Second thermal diffusion and heat radiation extinction layer 31；And black insulation passivation
Thin layer 80.
According to another implementation of the invention, with heat diffusivity can and electromagnetic shielding and impact absorbing function
Multi-functional thin-layer sheet can have structure as shown in Figure 3, and it includes release film layer 50；Conduction pressure-sensitive adhesive layer 60；The
One electromagnetic shielding and heat-transfer metal layer 10；First thermal diffusion and heat radiation extinction layer 30；Adhesive layer 20；Second electromagnetic shielding and
Heat-transfer metal layer 11；Second thermal diffusion and heat radiation extinction layer 31；Conducting adhesive layer 60；And protection film layer 90.
According to another embodiment of the invention, with heat diffusivity can and electromagnetic shielding and impact absorbing function it is many
Function thin-layer sheet can have structure as shown in Figure 5, and it includes release film layer 50；Conduction pressure-sensitive adhesive layer 60；First
Electromagnetic shielding and heat-transfer metal layer 10；As the first thermal diffusion and the inorganic heat radiation coating layer 32 of heat radiation extinction layer；It is poly-
Compound elastic layer 40；Conduction pressure-sensitive adhesive layer 60；And protection film layer 90.
On the other hand, it is described above with heat diffusivity can and electromagnetic shielding and impact absorbing function it is multi-functional thin
Layer of sheet material can be prepared by manufacture method, and it includes：（S1）In the first electromagnetic shielding and heat-transfer metal that are formed by metal forming
On the top of layer, the first thermal diffusion and heat radiation extinction layer are formed, wherein a large amount of prominent copper microgranules are connected to the first thermal diffusion
On the surface of heat radiation extinction layer；（S2）The top of the first thermal diffusion and heat radiation extinction layer is applied adhesive to by coating
In portion, so as to form adhesive layer；（S3）The electromagnetic shielding of lamination second and heat-transfer metal layer on the top of adhesive layer, wherein the
Two electromagnetic shieldings and heat-transfer metal layer are formed by metal forming；And（S4）On the second electromagnetic shielding and the top of heat-transfer metal layer
In portion, the second thermal diffusion and heat radiation extinction layer are formed, wherein a large amount of prominent copper microgranules are connected to the second thermal diffusion and hot spoke
Penetrate on the surface of extinction layer.
Hereinafter, according to each part of the multi-functional thin-layer sheet for constituting the present invention（component）Give detailed
Explanation.
[the first and second electromagnetic shieldings and heat-transfer metal layer]
In the present invention, the first and second electromagnetic shieldings and heat-transfer metal layer are independently by the metal with high conductivity
Prepared by paper tinsel, for example, prepared by copper, aluminum, stannum etc..At this point, metal forming not only plays blocking harmful electromagnetic wave, additionally it is possible to
Anti-static function and power ground function are provided.
More specifically, the first and second electromagnetic shieldings and heat-transfer metal layer can independently by from selected from the following
It is prepared by the material in the group for being constituted：The Jing chemical etchings of its one or both sides or anodised aluminium foil；Its one or both sides Jing
The Copper Foil that delustring is processed；The tinfoil paper etched with its one or both sides.
Preferably, the first and second electromagnetic shieldings and heat-transfer metal layer are or the Jing chemical etchings by the Copper Foil being electrolysed
Or anodic oxidation, the aluminium foil for producing rough side is made, so as to when thermal diffusion and heat radiation layer is coated with, improve its heat insulation work
With and coating layer adhesive characteristics.At this point, chemical etching is referred to and is immersed in comprising 10 to 30wt% sodium hydroxide（NaOH）
Solution in, washing then be dried.
[the first and second thermal diffusions and heat radiation extinction layer]
In the present invention, the first and second thermal diffusions and heat radiation extinction layer are used come the various numbers that effectively spread and dissipate
The heat that word formula electrical equipment and electronic equipment or various inside parts are produced.
Term " delustring " used herein refers to dimness（Passivation, dull）With coarse coating.
First and second thermal diffusions and heat radiation extinction layer can independently by with prominent copper microgranule on the surface
Copper lamina is formed.At this point, it is contemplated that be suitable to thermal diffusion and the thermal radiation function of extinction layer, the projecting height of copper microgranule can be with
For 2 to 6 μm.
Further, the first and second thermal diffusions and heat radiation extinction layer can independently by micro- with the prominent copper on surface
The copper lamina of grain is formed, and with the ceramic heat radiation thin layer being laminated on copper lamina.At this point, it is contemplated that be suitable to delustring
The thermal diffusion of layer and thermal radiation function, the projecting height of copper microgranule can be 2 to 6 μm.Similarly, ceramic dissipation of heat thin layer energy
It is enough that there is prominent ceramic particle on the surface.
In the present invention, the stock for thermal diffusion and heat radiation extinction layer is copper, and it is the gold of excellent heat conductivity
Category.Thermal diffusion and heat radiation extinction layer are by continuous plating（continuous plating）Prepared by method, the method is related to
The huge stainless cylinder as anode is rotating slowly in the solution tank filled with copper sulfate, so that copper precipitation and shape
Into copper lamina.At this point, the copper lamina side for contacting stainless surface is changed into smooth（glossy）Surface, opposite side is changed into coarse
Rough side, wherein with a large amount of copper microgranules.The thickness of the copper lamina for therefore obtaining is in the range of about 5 to 70 μm.This point
On because copper lamina is not only slip copper lamina, its side is very coarse, wherein with a large amount of copper microgranules, thus by its
Specific surface area is maximized, so that it is guaranteed that excellent heat radiation effect.
In other words, it is prepared by the method that thermal diffusion and heat radiation extinction layer can pass through to comprise the steps of：In plating groove
Copper Foil is formed, it plays electromagnetic shielding and heat conduction layer, and in CuSO4·5H2O is 40 to 90g/l, H2SO4For 30 to
80g/l, temperature range is 30 to 80 DEG C, and electric current is 5 to 15A/dm2, rely on the size and density and plating needs of copper microgranule
Under conditions of feature difference control time, burning process is carried out on Copper Foil（burnt process）, so as to basis of formation core
（basic nucleus）, for obtaining microgranule；In CuSO4·5H2O is 160 to 220g/l, H2SO4For 70 to 100g/l, temperature
Scope is 40 to 55 DEG C, and electric current is 5 to 20A/dm2, rely on the combustion case of copper microgranule differently under conditions of control time,
Carry out forming Capsule technologies on the Copper Foil obtained after burning process（capsuling process）, so that the base of copper microgranule
Plinth nucleus growth and stable；The Copper Foil of the acquisition after burning and forming Capsule technologies is completed, so that the size of copper microgranule is 0.5
It it is highly 2.0 to 6.0 μm to 3.0 μm, whole thickness is 8.0 to 40 μm.
In the present invention, inorganic heat radiation coating layer can provide heat absorption and dissipation of heat function, and it is by using
From by aluminium nitride, boron nitride, aluminium oxide, aluminum oxide, aluminium hydroxide, magnesium oxide, silicon dioxide, silicon-zirconium and silicate compounds
At least four selected in the group of thing composition, and from by iron oxide pigment, charcoal blacks, manganese oxide pigment, magnesium oxide face
The material of the mixture of the inorganic pigment selected in the group of material and TiO 2 pigment composition is formed.
[adhesive layer]
Adhesive layer can be by being applied selected from ammonia on the top of the first thermal diffusion and heat radiation extinction layer by coating
Binding agent in the group of base Ethyl formate, polyester and urethanes-polyester copolymer composition and formed.
[polymer elasticity cushion]
Polymer elasticity cushion can be prepared by chemical blowing process or mechanical foaming method, to produce multi-functional thin layer
Uniform cell is formed during sheet material, so as to provide shock-absorbing capacity for sheet material, thereby, it is ensured that impact absorbing and absorption of vibrations function, dress
With cohesive and water-proof function.
Polymer elasticity cushion can be foam sponge type, and can be by the group constituted selected from the following
In material prepare：Polyurethane, acrylic resin, polypropylene, ethylene propylene diene monomer（EPDM）, ethylene vinyl acetate
（EVA）And silicone.
[release film layer]
Release film layer is release paper or PET mould release membrances, and protects what is formed at the top of release film layer by being coated with
The effect of function pressure-sensitive adhesive layer, polymer elasticity cushion etc..
[conduction pressure-sensitive adhesive layer]
Conduction pressure-sensitive adhesive layer formed by pressure-sensitive adhesion cream, its be by will from by nickel, nickel-graphite, conductive black,
The conductive metal powder selected in the group of copper and silver composition, is dispersed in selected from acrylic resin and urethane resin
Prepare in resin.For example, when conductive pressure sensitive adhesive layer is formed on polymer elasticity cushion or release film layer, it can
Prepared by being coated with pressure-sensitive adhesion cream on the top of polymer elasticity cushion or release film layer.
Conduction pressure-sensitive adhesive layer not only has power ground（Earth lead）Function is so as to protection circuit and part are from electromagnetism
Ripple or electrostatic, and function sheet material or element are fixed to into module, framework（case）Or on equipment.
[function pressure-sensitive adhesive layer]
Function pressure-sensitive adhesive layer is the layer with thermostability and conduction of heat and light-shielding property, and it is by pressure-sensitive viscous
Close what cream was formed, wherein pressure-sensitive adhesion cream is by by selected from the functional powders of nickel, nickel-graphite, black pigment and aluminium oxide point
It is dispersed in what is prepared at least one resin of acrylic resin and urethane resin.At this point, if not
It is specifically to limit, then black pigment can include CNT, white carbon black etc..
Multi-functional thin-layer sheet is fixed on some elements for function pressure-sensitive adhesive layer use, it is allowed to vertical（up-
and-down）Electric current flowing, and power ground performance and conduction of heat and light-shielding property are provided.
[insulation passivation film layer]
Insulation passivation film layer has an electric insulation feature, and is by from black polyester film, black polypropylene thin film, black
What the material selected in the group of color Kapton composition was formed.Insulation passivation film layer is used for improving abrasion resistance, anti-ization
The property learned, proof voltage, electrical insulation capability and reliability.
[protection film layer]
Protection film layer is formed by least one in the mylar and release paper.More specifically, for protecting
The mylar of film layer is transparent polyester film.
Protection film layer is used for protecting pressure-sensitive adhesive layer and sheet material in procedure of processing.
As described above multi-functional thin-layer sheet has basic function, for example, resist the electromagnetic screen of altofrequency radiated noise
Cover function, and protect the circuit from the power ground function of electrostatic, promptly conduct and spread what heat production parts locally was produced
Heat, and solve the noise problem that heat causes.Further, multi-functional thin-layer sheet is by heating equipment, such as installed in master
CPU and any kind of semiconducter IC part on panel, the heat for for example being produced with any electronic equipment of more small design,
In being transmitted to open space, so that it is guaranteed that excellent thermal diffusion and thermal radiation function, and because excellent elasticity has weakening
With impact absorbing function.
And can be electromagnetically shielded with heat diffusivity and the multi-functional thin-layer sheet of impact absorbing function is thin-layer sheet, its
Including the metal level with good electric conductivity and electromagnetic shielding feature, Copper Foil is laminated to its side or two by chemical conjugation methods
Side, wherein Copper Foil have rough side, so as to provide excellent heat radiation and thermal diffusion effect；Formed on the side of metal level
The polymer elasticity cushion with excellent weakening and the thin layer type of impact absorbing function；And in the opposite side of metal level
The conduction pressure-sensitive adhesive layer of upper formation.Such multi-functional thin-layer sheet can allow for installing various small design on the home panel
Part, effectively spread and dissipate there is light weight, in small and simple structure digital communication and electric power and electronic product
The heat that side produces.Further, multi-functional thin-layer sheet is highly useful product, its be applied to smart mobile phone, panel computer,
On the part of mobile device and display device, such as LCD, OLED, BLU, FPCB etc., so that it is guaranteed that assembling cohesive, air-tightness,
Water resistance, light-shielding property and weakening and shock absorbing capability.Further, multi-functional thin-layer sheet is very suitable for high-tech
Skill mobile device as ultra-thin multifunctional product, and in terms of manufacturing process can large-scale production, as a result with good
Price competitiveness.
On the other hand, it is described above with heat diffusivity can and electromagnetic shielding and impact absorbing function it is multi-functional thin
Layer of sheet material can be prepared by the method for comprising the following steps：（S1）In the first electromagnetic shielding and conduction of heat gold that are formed by metal forming
On the top of category layer, the first thermal diffusion and heat radiation extinction layer are formed, wherein a large amount of prominent copper microgranules are connected to the first thermal expansion
Dissipate on the surface with heat radiation extinction layer；（S2）Binding agent is coated onto on the top of the first thermal diffusion and heat radiation extinction layer, from
And form adhesive layer；（S3）The electromagnetic shielding of lamination second and heat-transfer metal layer on the top of adhesive layer, wherein the second electromagnetism
Shielding and heat-transfer metal layer are formed by metal forming；And（S4）On the top of the second electromagnetic shielding and heat-transfer metal layer,
The second thermal diffusion and heat radiation extinction layer are laminated, wherein a large amount of prominent copper microgranules are connected to the second thermal diffusion and heat radiation delustring
On the surface of layer.
Used as the multi-functional thin-layer sheet with heat diffusivity energy and electromagnetic shielding and impact absorbing function, the present invention is also
There is provided multi-functional thin-layer sheet, it includes thermal diffusion and heat radiation layer；Electromagnetic shielding and heat-transfer metal layer；And polymer
Elastic cord breaker.
For the present invention the thermal diffusion of multi-functional thin-layer sheet and the inorganic material of heat radiation layer have electrical insulating property and
Heat-absorption properties, excellent heat-conductive characteristic, chemical resistance, thermostability, completely abrasion resistance, low flammability and environment friend
Good type, and as the porous thermal diffusion with superior thermal conductivity energy and thermal-radiating material.
Inorganic material used in the present invention can be included from by aluminium nitride, boron nitride, aluminium oxide, aluminum oxide, hydrogen-oxygen
Change at least four selected in the group of aluminum, magnesium oxide, silicon dioxide, silicon-zirconium and silicate compound composition；And inorganic pigment
Mixture.
Instantiation as the silicate compound of inorganic material in the present invention can include aluminium silicate, calcium magnesium silicate,
Magnesium silicate etc..
The instantiation of the inorganic pigment used in the present invention can include, but are not limited to from by iron oxide pigment, white carbon black
What is selected in the group of pigment, zinc oxide pigment, manganese dioxide pigment, magnesium oxide pigment and TiO 2 pigment composition is any known
Inorganic pigment.
Using sol-gel technology, the thermal diffusion for preparing multi-functional thin-layer sheet of the invention and heat are formed
The inorganic material of radiating layer, with high specific surface area, therefore heat radiation and heat are strengthened so as to such small granule
Conduction feature.
Preferably, the granular size that the inorganic material that sol-gel technology is used in the present invention has is 1 to 3 μm, compares table
Area is 20 to 30m2/g。
In the present invention, term " sol-gel technology " refers to the preparation method for inorganic particles, and it is included in suitably
Alkoxide cpd is hydrolyzed under pH as reactant, it is molten for the dispersion of the colloid microgranule of 1 to 1,000nm comprising size so as to prepare
Liquid, then concentrates scattered liquid by condensation reaction, so as to the dispersing solid molecule of the suitable size that is polymerized, therefore forms continuous
Solid network structure.
Relative to the gross weight of compositionss, comprising the content of inorganic material be 65 to 85wt%.
In the thermal diffusion and heat radiation layer for preparing multi-functional thin-layer sheet of the invention, the content of inorganic material is little
Can be to realizing electrical insulating property and heat-absorption properties, excellent heat-conductive characteristic, chemical resistance, thermostability, wear-resistant in 65wt%
Property, completely low flammability and environment friendly have unconspicuous effect, but the content of inorganic material can not higher than 85wt%
Strengthen performance, the increase of production cost can be caused on the contrary.
The compositionss of thermal diffusion and heat radiation layer can be by inorganic material, alcohol-based solvent in for preparing the present invention（It is based on
The solvent of alcohol, alcohol-based solvent）With dispersant composition.
The instantiation of the alcohol-based solvent used in the present invention can include, but are not limited to ethanol, isopropanol etc.；And this
The instantiation of the dispersant used in invention can include, but are not limited to aerosil（aero silica gel）、
Zeolite etc..
The thermal diffusion and heat radiation layer of the present invention can be coated with Jing scrapers drum-type（comma roller coating）, it is micro-
Intaglio plate coating（micro Gravure coating）, screen printing technique formed by coating composition.
In an embodiment of the invention, compositionss of the invention can be silicated by addition 65 to 86wt%
Compound as inorganic material, the CNT of 0.1 to 0.5wt%, the graphite of 0.1 to 0.5wt%, 0.01 to 0.05wt% it is inorganic
Pigment, the ethyl cellulose of 0.5 to 5.0wt% are used as thickening organic polymer material, the ethyl nitrocellulose of 0.5 to 5.0wt%
Element, the water-soluble alcohol based solvent of 15 to 30wt%, and 0.1 to 0.5wt% dispersant and prepare.
Electromagnetic shielding and heat-transfer metal layer are formed on the side of thermal diffusion described above and heat radiation layer, it can
The harmful electromagnetic wave of shielding.
In the present invention, electromagnetic shielding and heat-transfer metal layer are formed by the metal forming with satisfactory electrical conductivity, example
Such as Copper Foil, aluminium foil, tinfoil paper.Metal forming not only plays a part of to shield electromagnetic wave, and connects there is provided anti-static function and electric power
Ground function.
In an embodiment of the invention, if be not expressly limited by, it is electromagnetically shielded and heat-transfer metal layer energy
It is prepared by enough materials by the group constituted selected from the following：The Jing chemical etchings of its one or both sides or anodised aluminum
Paper tinsel；The Copper Foil that the Jing delustrings of its one or both sides are processed；The tinfoil paper etched with its one or both sides.
In the thermal diffusion of the coating present invention and during heat radiation layer, the electrolytic copper foil with the rough side for being formed or its side
Or both sides Jing chemical etchings or anodised aluminium foil preferably act as electro-magnetic screen layer, so that the excellent heat radiation of coating layer
Effect and bond propertiess are maximized.
Polymer elasticity cushion is formed on the side of electromagnetic shielding described above and heat-transfer metal layer, it has
Assembling cohesive（assembly adhesion）, air-tightness, water proofing property and absorption of vibrations and impact absorbing function.
In the present invention, polymer elasticity cushion can be by selected from polyurethane, acrylic resin, polypropylene, second
Alkene propylene diene monomer（EPDM）, ethylene vinyl acetate（EVA）It is prepared by the material in the group constituted with silicone.
In an embodiment of the invention, polymer elasticity cushion can be foam sponge type.
In the present invention, polymer elasticity cushion is prepared by chemical blowing process or mechanical foaming method, so as to
Uniform cell is formed when producing multi-functional thin-layer sheet, to provide shock-absorbing capacity as sheet material, thereby, it is ensured that absorption of vibrations and punching
Hit absorption function, assembling cohesive and water-proof function.
With reference to Fig. 4, the multi-functional thin-layer sheet of the present invention has the structure, its include successively thermal diffusion and heat radiation layer 1,
Electromagnetic shielding and heat-transfer metal layer 2, polymer elasticity cushion 3, function pressure-sensitive adhesive layer 4, and release film layer 5.
Preferably, the multi-functional thickness of thin layer of the invention of formation is 0.1 to 1.0mm.
As shown in figure 4, except thermal diffusion and heat radiation layer 1, electromagnetic shielding and heat-transfer metal layer 2 and polymer elasticity are delayed
Rush outside layer 3, the multi-functional thin-layer sheet of the present invention further includes function pressure-sensitive adhesive layer 4 and release film layer 5.
Function pressure-sensitive adhesive layer is by the way that by conductive metal powder, such as nickel, nickel-graphite, copper-silver etc. are dispersed in acrylic aldehyde
Or in urethane resin, so as to prepare pressure-sensitive adhesion cream, by scraper drum-type coating by pressure-sensitive adhesion cream be coated in from
In type film layer, such as release paper or PET mould release membrances, then resulting is pressed in layer by layer on electromagnetic shielding metal level.Function pressure
Quick adhesive layer is used for that function sheet material is fixed on some elements, it is allowed to vertical electric current flowing, and provides power ground work(
Energy.On the other hand, release film layer is used for defencive function pressure-sensitive adhesive layer.
Hereinafter, further detailed description will be provided, so as to reference to the preferred embodiment presentation present invention, its conduct
The example of the present invention is to provide for illustrative purposes, and is not intended to limit protection scope of the present invention.And ability
Technical staff should be understood that and can make within the scope of the present invention various changes and modifications in domain.
In the following embodiments, the Copper Foil that its side delustring is processed is used as the first and second electromagnetic shieldings and conduction of heat gold
Category layer, so that specific surface area is maximized, therefore improves heat radiation and thermal diffusion effect, tiny copper microgranule is projected on the surface
Copper Foil is used as the first and second thermal diffusions and heat radiation extinction layer.
Embodiment 1
By coating, polyurethane resin is coated on the top of PET mould release membrances, so as to form polymer elasticity cushion.
When polymer elasticity cushion is formed, using Mechanical blowing techniques so as to forming uniform cell.
By the way that nickel metal powder and conductive black are dispersed in into the conduction pressure-sensitive adhesion cream prepared in acrylic resin, lead to
Cross coating to be applied on the bottom of the first electromagnetic shielding and heat-transfer metal layer, so as to form conduction pressure-sensitive adhesive layer.Then, will
Conduction pressure-sensitive adhesive layer is laminated on the top of polymer elasticity cushion.
Subsequently, the first thermal diffusion and heat radiation delustring are formed on the top of the first electromagnetic shielding and heat-transfer metal layer
Layer.
Urethane based adhesives are applied on the top of the first thermal diffusion and heat radiation extinction layer by coating,
So as to form adhesive layer.
By second electromagnetic shielding and heat-transfer metal be pressed on the top of adhesive layer layer by layer, and second electromagnetic shielding and
The second thermal diffusion and heat radiation extinction layer are formed on the top of heat-transfer metal layer.
By the way that nickel metal powder and conductive black are dispersed in into the conduction pressure-sensitive adhesion cream prepared in acrylic resin, lead to
Cross coating to be applied on the top of the second thermal diffusion and heat radiation extinction layer, so as to form conduction pressure-sensitive adhesive layer.
Then, the protection film layer by made by mylar is formed on the top of conduction pressure-sensitive adhesive layer, it is many so as to complete
Function thin-layer sheet.
Embodiment 2
By coating, polyurethane resin is applied on the top of PET mould release membrances, so as to form polymer elasticity buffering
Layer.When polymer elasticity cushion is formed, using mechanical foaming foam technology so as to forming uniform cell.
By being dispersed in the function pressure-sensitive adhesion cream prepared in acrylic resin using white carbon black as black pigment, by applying
Cloth is applied on the bottom of the first electromagnetic shielding and heat-transfer metal layer, so as to form function pressure-sensitive adhesive layer.Then, by function
Pressure-sensitive adhesive layer is laminated on the top of polymer elasticity cushion.
Subsequently, the first thermal diffusion and heat radiation delustring are formed on the top of the first electromagnetic shielding and heat-transfer metal layer
Layer.
Urethane based adhesives are applied on the top of the first thermal diffusion and heat radiation extinction layer by coating,
So as to form adhesive layer.
By second electromagnetic shielding and heat-transfer metal be pressed on the top of adhesive layer layer by layer, and second electromagnetic shielding and
The second thermal diffusion and heat radiation extinction layer are formed on the top of heat-transfer metal layer.
By dry lamination technology, black polyester insulation is formed on the top of the second thermal diffusion and heat radiation extinction layer blunt
Change thin layer, so as to complete multi-functional thin-layer sheet.
Embodiment 3
PET mould release membrances are prepared as sealing coat.
By the way that nickel metal powder and conductive black are dispersed in into the conduction pressure-sensitive adhesion cream prepared in acrylic resin, lead to
Cross coating to be applied on the bottom of the first electromagnetic shielding and heat-transfer metal layer, so as to form conduction pressure-sensitive adhesive layer.Then, will
Conduction pressure-sensitive adhesive layer is laminated on the top of PET mould release membrances.
Subsequently, the first thermal diffusion and heat radiation delustring are formed on the top of the first electromagnetic shielding and heat-transfer metal layer
Layer.
Urethane based adhesives are applied on the top of the first thermal diffusion and heat radiation extinction layer by coating,
So as to form adhesive layer.
By second electromagnetic shielding and heat-transfer metal be pressed on the top of adhesive layer layer by layer, and second electromagnetic shielding and
The second thermal diffusion and heat radiation extinction layer are formed on the top of heat-transfer metal layer.
By the way that nickel metal powder and conductive black are dispersed in into the conduction pressure-sensitive adhesion cream prepared in acrylic resin, lead to
Cross coating to be applied on the top of the second thermal diffusion and heat radiation extinction layer, so as to form conduction pressure-sensitive adhesive layer.
Then, the protection film layer by made by mylar is formed on the top of conduction pressure-sensitive adhesive layer, it is many so as to complete
Function thin-layer sheet.
According to following methods, the electromagnet shield effect of the multi-functional thin-layer sheet prepared in embodiment is measured.Measurement result
It is given in Table 1.
The measurement of electromagnet shield effect
According to D4935 standard method of test, using electromagnet shield effect measuring instrument（Spectrum Analyzer
4194A, Hurett-Packard）, in the case where frequency range is 10 to 1,000MHz, the multi-functional thin layer prepared in practical measuring examples 1
The electromagnet shield effect of sheet material.
As shown in fig. 6, measurement result shows, in the case where frequency range is 10 to 1,000MHz, what is prepared in example 1 is multi-functional
The electromagnet shield effect average out to 76.42dB of thin-layer sheet, the measured value is made higher than on various display devices for being electromagnetically shielded
The electromagnet shield effect of conventional patch（Usually 55 to 65dB）.
1：Thermal diffusion and heat radiation layer
2：Electromagnetic shielding and heat-transfer metal layer
3：Polymer elasticity cushion
4：Function pressure-sensitive adhesive layer
5：Release film layer
10：First electromagnetic shielding and heat-transfer metal layer
11：Second electromagnetic shielding and heat-transfer metal layer
20：Adhesive layer
30：First thermal diffusion and heat radiation extinction layer
31：Second thermal diffusion and heat radiation extinction layer
32：Inorganic heat radiation coating layer
40：Polymer elasticity cushion
50：Release film layer
60：Conduction pressure-sensitive adhesive layer
70：Function pressure-sensitive adhesive layer
80：Black insulation passivation film layer
90：Protection film layer.
Claims (23)
1. it is a kind of with heat diffusivity can and electromagnetic shielding and impact absorbing function multi-functional thin-layer sheet,
The multi-functional thin-layer sheet includes：
First electromagnetic shielding and heat-transfer metal layer；
First thermal diffusion and heat radiation extinction layer, be formed in it is described first electromagnetic shielding and heat-transfer metal layer top on and
Including copper microgranule；
Adhesive layer, is formed on the top of first thermal diffusion and heat radiation extinction layer；
Second electromagnetic shielding and heat-transfer metal layer, are formed on the top of the adhesive layer；And
Second thermal diffusion and heat radiation extinction layer, be formed in it is described second electromagnetic shielding and heat-transfer metal layer top on and
Including copper microgranule；
Wherein described first electromagnetic shielding and heat-transfer metal layer and second electromagnetic shielding are with heat-transfer metal layer independently
Prepared by the material in the group constituted selected from the following：The Jing chemical etchings of its one or both sides or anodised aluminum
Paper tinsel；The Copper Foil that the Jing delustrings of its one or both sides are processed；The tinfoil paper etched with its one or both sides；
Wherein described first thermal diffusion and heat radiation extinction layer and second thermal diffusion and heat radiation extinction layer are independently by having
The copper lamina for having prominent copper microgranule in its surface is formed；Or formed by copper lamina, the copper lamina has prominent in its table
Copper microgranule on face and with the ceramic heat radiation thin layer formed on the copper lamina.
2. multi-functional thin-layer sheet according to claim 1, further includes：
The polymer elasticity cushion formed on the bottom of the described first electromagnetic shielding and heat-transfer metal layer.
3. multi-functional thin-layer sheet according to claim 2, further includes：
The release film layer formed on the bottom of the polymer elasticity cushion.
4. multi-functional thin-layer sheet according to claim 1 and 2, further includes：
Conduction pressure-sensitive adhesive layer, is formed in bottom and second thermal diffusion of first electromagnetic shielding and heat-transfer metal layer
On at least one in the top of heat radiation extinction layer.
5. multi-functional thin-layer sheet according to claim 1 and 2, further includes：
With thermostability, heat-conductive characteristic and light-shielding property, and in the described first electromagnetic shielding and heat-transfer metal layer
The function pressure-sensitive adhesive layer formed on bottom.
6. multi-functional thin-layer sheet according to claim 5, further includes：
The insulation passivation film layer formed on the top of second thermal diffusion and heat radiation extinction layer.
7. multi-functional thin-layer sheet according to claim 4, further includes：
The protection film layer formed on the top of the conduction pressure-sensitive adhesive layer, wherein the conduction pressure-sensitive adhesive layer is described
Formed on the top of the second thermal diffusion and heat radiation extinction layer.
8. multi-functional thin-layer sheet according to claim 4, further includes：
The release film layer formed on the bottom of the conduction pressure-sensitive adhesive layer, wherein the conduction pressure-sensitive adhesive layer is described
Formed on the bottom of the first electromagnetic shielding and heat-transfer metal layer.
9. multi-functional thin-layer sheet according to claim 2, wherein the polymer elasticity cushion is by selected from following
It is prepared by the material in the group that items are constituted：Foam sponge type polyurethane, acrylic resin, polypropylene, propylene diene
Monomer, ethylene vinyl acetate and silicone.
10. multi-functional thin-layer sheet according to claim 4, wherein the conduction pressure-sensitive adhesive layer is by by being selected from
Conductive metal powder in the group be made up of nickel, nickel-graphite, conductive black, copper and silver, be dispersed in selected from acrylic resin and
What the pressure-sensitive adhesion cream prepared at least one resin of urethane resin was formed.
11. multi-functional thin-layer sheets according to claim 5, wherein the function pressure-sensitive adhesive layer is by by being selected from
Functional powders in nickel, nickel-graphite, black pigment and aluminium oxide, are dispersed in selected from acrylic resin and urethanes
What the pressure-sensitive adhesion cream prepared at least one resin of resin was formed.
12. it is a kind of for prepare with heat diffusivity can and electromagnetic shielding and impact absorbing function multi-functional thin-layer sheet
Method,
Methods described includes：
(S1) on the top of the first electromagnetic shielding and heat-transfer metal layer that are formed by metal forming, the first thermal diffusion and heat are formed
Radiation extinction layer, wherein first thermal diffusion and heat radiation extinction layer have the copper of a large amount of protrusions for being attached to its surface micro-
Grain；
(S2) applied adhesive on the top of first thermal diffusion and heat radiation extinction layer by coating, it is viscous so as to be formed
Close layer；
(S3) electromagnetic shielding of lamination second and heat-transfer metal layer on the top of the adhesive layer, wherein second electromagnetic screen
Cover and formed by metal forming with heat-transfer metal layer；And
(S4) on the top of the described second electromagnetic shielding and heat-transfer metal layer, the second thermal diffusion and heat radiation delustring are formed
Layer, wherein second thermal diffusion and heat radiation extinction layer have the copper microgranule of a large amount of protrusions for being attached to its surface；
Wherein described first electromagnetic shielding and heat-transfer metal layer and second electromagnetic shielding are with heat-transfer metal layer independently
Prepared by the material in the group constituted selected from the following：The Jing chemical etchings of its one or both sides or anodised aluminum
Paper tinsel；The Copper Foil that the Jing delustrings of its one or both sides are processed；The tinfoil paper etched with its one or both sides；
Wherein described first thermal diffusion and heat radiation extinction layer and second thermal diffusion and heat radiation extinction layer are independently by having
The copper lamina for having prominent copper microgranule in its surface is formed；Or formed by copper lamina, the copper lamina has prominent in its table
Copper microgranule on face and with the ceramic heat radiation thin layer formed on the copper lamina.
13. methods according to claim 12, wherein the multi-functional thin-layer sheet further include it is electric described first
The polymer formed on the bottom of magnetic shield and heat-transfer metal layer or on the top of the thermal diffusion and heat radiation extinction layer
Elastic cord breaker,
Wherein methods described is further included：
Before step (S1), on the top of the polymer elasticity cushion, the first electromagnetism formed by metal forming is laminated
Shielding and heat-transfer metal layer.
14. methods according to claim 12, further include：
Conduction pressure-sensitive adhesion cream is applied by coating, so as in bottom and the institute of the described first electromagnetic shielding and heat-transfer metal layer
State and formed at least one in the top of the second thermal diffusion and heat radiation extinction layer conduction pressure-sensitive adhesive layer, wherein described pressure-sensitive viscous
It is by the way that the conductive metal powder in the group constituted selected from nickel, nickel-graphite, conductive black, copper and silver is dispersed in close cream
Prepare at least one resin of acrylic resin and urethane resin.
15. methods according to claim 12, further include：
Function pressure-sensitive adhesion cream is applied by coating, so as to the shape on the bottom of the described first electromagnetic shielding and heat-transfer metal layer
Into function pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesion cream is by by selected from nickel, nickel-graphite, black pigment and aluminium oxide
Functional powders are dispersed in what is prepared at least one resin of acrylic resin and urethane resin.
16. methods according to claim 12, further include：
Black insulation passivation film layer is formed on the top of second thermal diffusion and heat radiation extinction layer.
17. methods according to claim 14, further include：
Protection film layer is formed on the top of the conduction pressure-sensitive adhesive layer, wherein the conduction pressure-sensitive adhesive layer is described the
Formed on the top of two thermal diffusions and heat radiation extinction layer.
18. methods according to claim 14, further include：
Release film layer is formed on the bottom of the conduction pressure-sensitive adhesive layer, wherein the conduction pressure-sensitive adhesive layer is described the
Formed on the bottom of one electromagnetic shielding and heat-transfer metal.
19. it is a kind of including it is as claimed in claim 1 with heat diffusivity can and electromagnetic shielding and impact absorbing function it is many
The digital electrical equipment of function thin-layer sheet and electronic product.
A kind of 20. multi-functional thin-layer sheets, there is heat diffusivity can and be electromagnetically shielded and impact absorbing function for it,
The multi-functional thin-layer sheet includes：
First electromagnetic shielding and heat-transfer metal layer；
First thermal diffusion and heat radiation extinction layer, be formed in it is described first electromagnetic shielding and heat-transfer metal layer top on and
Including copper microgranule；
Adhesive layer, is formed on the top of first thermal diffusion and heat radiation extinction layer；
Second electromagnetic shielding and heat-transfer metal layer, are formed on the top of the adhesive layer；And
Second thermal diffusion and heat radiation extinction layer, be formed in it is described second electromagnetic shielding and heat-transfer metal layer top on and
Including copper microgranule；
Using selected from foam sponge type polyurethane, acrylic resin, polypropylene, ethylene propylene diene monomer, vinyl acetate second
Polymer elasticity cushion prepared by the material of alkene ester and silicone；Function pressure-sensitive adhesive layer；And release film layer；
Wherein thermal diffusion and heat radiation extinction layer are prepared using the compositionss comprising inorganic material,
Wherein described inorganic material is using selected from aluminium nitride, boron nitride, aluminium oxide, aluminum oxide, aluminium hydroxide, oxidation
In the group of magnesium, silicon dioxide, silicon-zirconium and silicate compound composition at least four, and selected from iron oxide pigment, white carbon black
Prepared by the mixture of the inorganic pigment in the group of pigment, manganese oxide pigment, magnesium oxide pigment and TiO 2 pigment composition, its
In relative to the compositionss total amount, the inorganic material uses with the content of 65 to 85wt%,
Wherein described function pressure-sensitive adhesive layer is pressure-sensitive adhesion cream to be applied on the release film layer by coating formed, institute
It is by the way that nickel or nickel-graphite and conductive metal powder are dispersed in into preparation in resin to state pressure-sensitive adhesion cream.
21. multi-functional thin-layer sheets according to claim 20, wherein the compositionss comprising the inorganic material are entered
One step includes the solvent and dispersant based on water-soluble alcohol.
22. multi-functional thin-layer sheets according to claim 20, wherein the electromagnetic shielding and heat-transfer metal layer are by selecting
It is prepared by the material in the group that free the following is constituted：The Jing chemical etchings of its one or both sides or anodised aluminium foil；Its
The Copper Foil that one or both sides Jing delustrings are processed；The tinfoil paper etched with its one or both sides.
A kind of 23. electronic products using multi-functional thin-layer sheet as claimed in claim 20.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0117214 | 2012-10-22 | ||
| KR1020120117214A KR101235541B1 (en) | 2012-10-22 | 2012-10-22 | Multi-functional thin layer seat with excellent thermal diffusion properties, electromagnetic waveshielding function and impact absorbing function and preparation method thereof |
| KR1020130039678A KR101272397B1 (en) | 2013-04-11 | 2013-04-11 | Multi-functional thin layer sheet with excellent thermal diffusion properties, electromagnetic wave shielding function and impact absorbing function and method for preparinbg the same |
| KR10-2013-0039678 | 2013-04-11 |
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| Publication Number | Publication Date |
|---|---|
| CN103781338A CN103781338A (en) | 2014-05-07 |
| CN103781338B true CN103781338B (en) | 2017-04-26 |
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| CN108811477B (en) * | 2014-09-01 | 2020-02-14 | 斯迪克新型材料（江苏）有限公司 | Electronic product film for reducing electromagnetic radiation |
| KR102251415B1 (en) * | 2014-12-24 | 2021-05-12 | 주식회사 두산 | Preparation method of electromagnetic wave shielding film for flexible printed circuit board |
| WO2018188341A1 (en) * | 2017-04-12 | 2018-10-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Composite structure and method for producing the same and electronic device |
| KR101922938B1 (en) * | 2017-09-29 | 2018-11-29 | 일진머티리얼즈 주식회사 | Multi-functional composite sheet having function of controlling electromagnetic wave, thermal radiation, and absorbing impact |
| CN109468083A (en) * | 2018-12-10 | 2019-03-15 | 佛山市佳世达薄膜科技有限公司 | A kind of solvent-resisting release film |
| TW202100626A (en) * | 2019-01-29 | 2021-01-01 | 日商松下知識產權經營股份有限公司 | Shock absorbing laminated body and display device |
| CN110350048A (en) * | 2019-07-05 | 2019-10-18 | 电子科技大学 | A kind of photon radiation radiator structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201709026U (en) * | 2010-07-09 | 2011-01-12 | 远东(三河)多层电路有限公司 | Printed circuit board capable of shielding interference signal |
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| JP4201548B2 (en) * | 2002-07-08 | 2008-12-24 | タツタ電線株式会社 | SHIELD FILM, SHIELD FLEXIBLE PRINTED WIRING BOARD AND METHOD FOR PRODUCING THEM |
| KR20070108436A (en) * | 2006-12-20 | 2007-11-12 | 한상관 | Method to construct rotating water gate purifing polluted river water |
| KR101215491B1 (en) * | 2011-03-24 | 2012-12-28 | 주식회사 하정바이텍 | Suspension shock absorber of mcpherson strut type having reservoir capable of fine control of dumping force |
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