CN108251003A - High reliability inhales wave film - Google Patents

High reliability inhales wave film Download PDF

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Publication number
CN108251003A
CN108251003A CN201711439394.0A CN201711439394A CN108251003A CN 108251003 A CN108251003 A CN 108251003A CN 201711439394 A CN201711439394 A CN 201711439394A CN 108251003 A CN108251003 A CN 108251003A
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layer
parts
wave
adhesive layer
high reliability
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金闯
梁豪
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Sidike New Materials Jiangsu Co Ltd
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Sidike New Materials Jiangsu Co Ltd
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    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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Abstract

The present invention discloses a kind of high reliability and inhales wave film, including PET insulating layers, metal layer, inhales wave layer and separated type material layer；The first adhesive layer is provided between PET insulating layers and metal layer, the second adhesive layer is provided between the metal layer and suction wave layer, the suction wave layer is composed of the following components：100 parts of wave-absorbing powder, 20 ~ 35 parts of butyl acrylate, 10 ~ 20 parts of acrylic acid, 20 ~ 35 parts of Isooctyl acrylate monomer, 10 ~ 30 parts of methyl methacrylate, 1 ~ 3 part of vinyl acetate, 0.1 ~ 1 part of 2 hydroxyl ethyl ester of methacrylic acid, 0.5 ~ 2 part of Sodium Polyacrylate, 0.4 ~ 1 part of methyl ethyl ketone peroxide.High reliability of the present invention inhales wave film and significantly improves the absorbing property of Protection glue band, and avoid the excessively concentration of heat, is conducive to heat diffusion.

Description

High reliability inhales wave film
Technical field
The invention belongs to technical field of electronic materials more particularly to a kind of high reliability to inhale wave film.
Background technology
At present, as shielding material, the piece of widely used metal or net are heavier, there is housing domestic demand of the configuration in equipment The problem of spending labour and time.Moreover, the piece or net of metal have there are electro-magnetic wave absorption ability it is big anisotropic Tendency, i.e., the tendency that electro-magnetic wave absorption ability is remarkably decreased when the incidence angle of electromagnetic wave increases.The electricity that electronic product releases Magnetic wave can bring electromagnetic interference to other electronic equipments of surrounding, make its operation irregularity；Also health can be caused to endanger simultaneously Evil.For at present, micromation, Highgrade integration are the main trends of electronic product development, and the inner space of these products is opposite It is narrow.In absorbing material, patch-type absorbing material thickness is thin, easy to use, for reducing electromagnetic radiation, preventing electromagnetic interference from having Good effect, compares and is suitably applied in electronic product.Therefore, thin thickness, light weight are designed and developed, suitable for small space Patch-type electromagnetic wave absorbent material, become those skilled in the art effort direction.
Invention content
The present invention provides a kind of high reliability and inhales wave film, this high reliability inhales wave film and improves metal layer reflection electromagnetic field Utilization rate, significantly improves the absorbing property of Protection glue band, and avoids the excessively concentration of heat, is conducive to heat diffusion, It avoids film being caused to upwarp due to Wen Sheng, improves the stability of properties of product.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of high reliability inhales wave film, including metal layer, Inhale wave layer and separated type material layer；Be provided with the first adhesive layer between PET insulating layers and metal layer, the metal layer with inhale wave layer it Between be provided with the second adhesive layer, be disposed with third adhesive layer, polypropylene film between the suction wave layer and separated type material layer Layer and the 4th adhesive layer；The surface that 4th adhesive layer is contacted with separated type material layer has several salient points；
The suction wave layer is composed of the following components：100 parts of wave-absorbing powder, 20 ~ 35 parts of butyl acrylate, 10 ~ 20 parts of acrylic acid, third 20 ~ 35 parts of the different monooctyl ester of olefin(e) acid, 10 ~ 30 parts of methyl methacrylate, 1 ~ 3 part of vinyl acetate, 2-hydroxyethyl methacry-late 0.1 ~ 1 part, 0.5 ~ 2 part of Sodium Polyacrylate, 0.4 ~ 1 part of methyl ethyl ketone peroxide；
The wave-absorbing powder is composed of the following components：100 parts of carbonyl iron dust, 50 ~ 60 parts of nickel sesquioxide, 6 parts of nano graphite powder, 10 ~ 15 parts of cobalt chloride, 68 parts of unsaturated polyester (UP), 50 parts of neopelex.
Further improved technical solution is as follows in above-mentioned technical proposal：
1st, in said program, the thickness of first adhesive layer is less than the thickness of the second adhesive layer, the thickness of second adhesive layer Degree is less than third adhesive layer.
2nd, in said program, the thickness ratio of the PET insulating layers and layer of polypropylene foil is 10：4~6.
3rd, in said program, in the wave-absorbing powder carbonyl iron dust, nickel sesquioxide, nano graphite powder and cobalt chloride according to 10：5：0.8：1.2 weight ratios mix.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1st, high reliability of the present invention inhales wave film, inhales wave layer using composite wave-absorbing powder carbonyl iron dust, nickel sesquioxide, nanometer stone Ink powder, cobalt chloride and butyl acrylate, acrylic acid, Isooctyl acrylate monomer, methyl methacrylate, vinyl acetate, metering system Acid -2- hydroxyl ethyl esters act synergistically, and have stronger electromaganic wave absorbing property, reach 85% in the attenuation rate of 2 ~ 10GHz electromagnetic waves, Sodium Polyacrylate, methyl ethyl ketone peroxide are further added, polymer gluing is not only improved, but also mixed powder is in the polymer It is uniformly dispersed, so as to ensure that the reliability of electromagnetic performance；Secondly, unsaturated polyester (UP), dodecyl are further equipped in formula Benzene sulfonic acid sodium salt improves the entire heat conductivility for inhaling wave layer, is conducive to the heat expanding for generating electromagnetic wave, improves performance Stability and product service life.
2nd, high reliability of the present invention inhales wave film, and which raises the utilization rate of metal layer reflection electromagnetic field, the settings of metal layer Multiple absorption can be formed, significantly improves the absorbing property of pad pasting；Secondly, it inhales and is set successively between wave layer and separated type material layer Third adhesive layer, layer of polypropylene foil and the 4th adhesive layer are equipped with, the effect of its proof voltage breakdown is greatly improved, also improves Suction wave film strength；Again, the surface that the 4th adhesive layer is contacted with separated type material layer has several salient points, is conducive to paste The discharge of gas during conjunction, so as to avoid the generation of bubble.
Specific embodiment
With reference to embodiment, the invention will be further described：
Embodiment：A kind of high reliability inhales wave film, including metal layer, inhales wave layer and separated type material layer；PET insulating layers and metal layer Between be provided with the first adhesive layer, be provided with the second adhesive layer between the metal layer and suction wave layer, the suction wave layer with it is release Third adhesive layer, layer of polypropylene foil and the 4th adhesive layer are disposed between material layer；4th adhesive layer with it is release The surface of material layer contacts has several salient points.
The suction wave layer is composed of the following components：100 parts of wave-absorbing powder, 20 ~ 35 parts of butyl acrylate, acrylic acid 10 ~ 20 Part, 20 ~ 35 parts of Isooctyl acrylate monomer, 10 ~ 30 parts of methyl methacrylate, 1 ~ 3 part of vinyl acetate, methacrylic acid -2- hydroxyl second 0.1 ~ 1 part of ester, 0.5 ~ 2 part of Sodium Polyacrylate, 0.4 ~ 1 part of methyl ethyl ketone peroxide；
The wave-absorbing powder is composed of the following components：100 parts of carbonyl iron dust, 50 ~ 60 parts of nickel sesquioxide, 6 parts of nano graphite powder, 10 ~ 15 parts of cobalt chloride, 68 parts of unsaturated polyester (UP), 50 parts of neopelex.
The thickness of above-mentioned first adhesive layer is less than the thickness of the second adhesive layer, and the thickness of second adhesive layer is less than third Adhesive layer.
The thickness ratio of above-mentioned PET insulating layers and layer of polypropylene foil is 10：4~6.
Above-mentioned unsaturated polyester (UP) is synthesized by maleic anhydride, phthalic anhydride and propylene glycol.
Embodiment is as shown in table 3 in the maximum reflection coefficient and effective bandwidth of 2 ~ 18GHz frequency ranges：
Table 3
Inhale wave plate thickness Maximum reflection coefficient（dB） ≤ -8 dB effective bandwidths（GHz）
Embodiment 0.4mm -19 2~7
The thickness ratio of above-mentioned PET insulating layers and layer of polypropylene foil 5 is 10： 6；The average height of above-mentioned salient point is 8 microns.
Above-mentioned PET thickness of insulating layer is 6 microns；The thickness ratio of the PET insulating layers and layer of polypropylene foil is 10：5.
Above-described embodiment inhales the preparation process of wave layer, includes the following steps：
The first step：By carbonyl iron dust, nickel sesquioxide, nano graphite powder, cobalt chloride, unsaturated polyester (UP) part, detergent alkylate sulphur Sour sodium is uniformly mixed, and stirs to form mixed powder in 84 ~ 86 DEG C of conditions；
Second step：By butyl acrylate, acrylic acid, Isooctyl acrylate monomer, methyl methacrylate, vinyl acetate, metering system Acid -2- hydroxyl ethyl esters, Sodium Polyacrylate are mixed with the mixed powder of the first step, and are disperseed 1 ~ 2 hour through high speed agitator, so as to mixed Conjunction is formed uniformly mixture；
Third walks：It keeps the temperature after the mixture of second step is heated to 80 ~ 85 DEG C in a kettle, divides 1 ~ 3 time in insulating process It adds in methyl ethyl ketone peroxide and obtains and inhale wave mixed liquor, the soaking time is 4 ~ 10 hours；
4th step：The suction wave mixed liquor that third step obtains is coated on substrate；
5th step：Baking is carried out to the suction wave mixed liquor in the 4th step and forms suction wave layer.
When inhaling wave film using above-mentioned high reliability, which raises the utilization rate of metal layer reflection electromagnetic field, metal layer is set Multiple absorption can be formed by putting, and significantly improve the absorbing property of pad pasting；Secondly, it inhales between wave layer and separated type material layer successively Third adhesive layer, layer of polypropylene foil and the 4th adhesive layer are provided with, the effect of its proof voltage breakdown is greatly improved, also carries High suction wave film strength；Again, the surface that the 4th adhesive layer is contacted with separated type material layer has several salient points, is conducive to The discharge of gas during fitting, so as to avoid the generation of bubble.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention The equivalent change or modification that Spirit Essence is made, should be covered by the protection scope of the present invention.

Claims (4)

1. a kind of high reliability inhales wave film, including metal layer, wave layer and separated type material layer are inhaled；Between PET insulating layers and metal layer The first adhesive layer is provided with, the second adhesive layer, the suction wave layer and separated type material are provided between the metal layer and suction wave layer Third adhesive layer, layer of polypropylene foil and the 4th adhesive layer are disposed between layer；
The suction wave layer is composed of the following components：100 parts of wave-absorbing powder, 20 ~ 35 parts of butyl acrylate, 10 ~ 20 parts of acrylic acid, third 20 ~ 35 parts of the different monooctyl ester of olefin(e) acid, 10 ~ 30 parts of methyl methacrylate, 1 ~ 3 part of vinyl acetate, 2-hydroxyethyl methacry-late 0.1 ~ 1 part, 0.5 ~ 2 part of Sodium Polyacrylate, 0.4 ~ 1 part of methyl ethyl ketone peroxide；
The wave-absorbing powder is composed of the following components：100 parts of carbonyl iron dust, 50 ~ 60 parts of nickel sesquioxide, 6 parts of nano graphite powder, 10 ~ 15 parts of cobalt chloride, 68 parts of unsaturated polyester (UP), 50 parts of neopelex.
2. high reliability according to claim 1 inhales wave film, it is characterised in that：Carbonyl iron dust, three in the wave-absorbing powder Two nickel, nano graphite powder and cobalt chloride are aoxidized according to 10：5：0.8：1.2 weight ratios mix.
3. high reliability according to claim 1 inhales wave film, it is characterised in that：The thickness of first adhesive layer is less than the The thickness of two adhesive layers, the thickness of second adhesive layer are less than third adhesive layer.
4. high reliability according to claim 1 inhales wave film, it is characterised in that：The PET insulating layers and polypropylene film The thickness ratio of layer is 10：4~6.
CN201711439394.0A 2015-05-21 2015-05-21 High reliability inhales wave film Pending CN108251003A (en)

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CN201711439421.4A Pending CN108219699A (en) 2015-05-21 2015-05-21 Wave screened film is inhaled in height heat dissipation
CN201711439416.3A Pending CN108248152A (en) 2015-05-21 2015-05-21 Electromagnetic shielding protection pad pasting
CN201711439417.8A Pending CN108382033A (en) 2015-05-21 2015-05-21 Electromagnetic shielding film
CN201711439523.6A Pending CN108611013A (en) 2015-05-21 2015-05-21 Wave film is inhaled in heat dissipation
CN201510261015.8A Active CN105034483B (en) 2015-05-21 2015-05-21 Shielding pad pasting with heat sinking function
CN201711439531.0A Pending CN108251004A (en) 2015-05-21 2015-05-21 Composite electromagnetic absorbs pad pasting
CN201711439455.3A Pending CN108130004A (en) 2015-05-21 2015-05-21 Electromagnetic shielding inhales waveguide hotting mask
CN201711439394.0A Pending CN108251003A (en) 2015-05-21 2015-05-21 High reliability inhales wave film
CN201711439503.9A Pending CN108239491A (en) 2015-05-21 2015-05-21 Electro-magnetic wave absorption film

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CN201711439417.8A Pending CN108382033A (en) 2015-05-21 2015-05-21 Electromagnetic shielding film
CN201711439523.6A Pending CN108611013A (en) 2015-05-21 2015-05-21 Wave film is inhaled in heat dissipation
CN201510261015.8A Active CN105034483B (en) 2015-05-21 2015-05-21 Shielding pad pasting with heat sinking function
CN201711439531.0A Pending CN108251004A (en) 2015-05-21 2015-05-21 Composite electromagnetic absorbs pad pasting
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CN105034483B (en) 2018-12-25
CN108239491A (en) 2018-07-03
CN108130004A (en) 2018-06-08
CN108248152A (en) 2018-07-06
CN108219699A (en) 2018-06-29
CN105034483A (en) 2015-11-11
CN108611013A (en) 2018-10-02
CN108251004A (en) 2018-07-06

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Application publication date: 20180706