CN104999735B - Composite film-stuck with shielding electromagnetic field function - Google Patents

Composite film-stuck with shielding electromagnetic field function Download PDF

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Publication number
CN104999735B
CN104999735B CN201510260828.5A CN201510260828A CN104999735B CN 104999735 B CN104999735 B CN 104999735B CN 201510260828 A CN201510260828 A CN 201510260828A CN 104999735 B CN104999735 B CN 104999735B
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parts
layer
adhesive layer
electromagnetic field
stuck
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CN104999735A (en
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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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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • 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
    • B32B15/08—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 of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B15/00—Layered products comprising a layer of metal
    • 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
    • B32B15/08—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 of synthetic resin
    • B32B15/09—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 of synthetic resin comprising polyesters
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin 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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  • Chemical & Material Sciences (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The present invention discloses a kind of composite film-stuck with shielding electromagnetic field function, including PET insulating barriers, metal level, suction ripple layer and separated type material layer；The first adhesive layer is provided between PET insulating barriers and metal level, the second adhesive layer is provided between the metal level and suction ripple layer, the metal level is provided with several prismatic protrusions portions arranged in parallel with inhaling the surface that ripple layer contacts；The suction ripple layer is kneaded by following components to be formed：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.The present invention has the utilization rate that the composite film-stuck of shielding electromagnetic field function improves metal layer reflection electromagnetic field, significantly improves the absorbing property of Protection glue band, and, the excessively concentration of heat is avoided, is advantageous to heat diffusion.

Description

Composite film-stuck with shielding electromagnetic field function
Technical field
The invention belongs to technical field of electronic materials, more particularly to a kind of composite film-stuck with shielding electromagnetic field function.
Background technology
The development of electronics and communications industry is advanced by leaps and bounds, and increasing electric equipment products enters the life of common people It is living.These products also bring a distinct issues, i.e. electromagnetic radiation while people's quality of life is improved.Electronics The electromagnetic wave that product discharges, electromagnetic interference can be brought to other electronic equipments of surrounding, make its operation irregularity；Simultaneously also can be right Health damages.
At present for, miniaturization, Highgrade integration be electronic product development main trend, the inner space of these products It is relatively narrow and small.In absorbing material, patch-type absorbing material thickness of thin is easy to use, for reducing electromagnetic radiation, preventing electromagnetism from doing Good effect has been disturbed, has compared and is suitably applied in electronic product.Therefore, thickness of thin, light weight are designed and developed, suitable for narrow and small The patch-type electromagnetic wave absorbent material in space, turn into the direction of those skilled in the art's effort.
The content of the invention
The present invention provides a kind of composite film-stuck with shielding electromagnetic field function, and this has the compound of shielding electromagnetic field function Pad pasting improves the utilization rate of metal layer reflection electromagnetic field, significantly improves the absorbing property of Protection glue band, and avoids heat Excessively concentration, be advantageous to heat diffusion, also avoid, because temperature rise causes film to upwarp, improving the stability of properties of product.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of compound patch with shielding electromagnetic field function Film, including PET insulating barriers, metal level, suction ripple layer and separated type material layer, first is provided between this PET insulating barrier and metal level Adhesive layer, is provided with the second adhesive layer between the metal level and suction ripple layer, the metal level is set with inhaling the surface that ripple layer contacts It is equipped with several prismatic protrusions portions arranged in parallel；It is gluing that the 3rd is disposed between the suction ripple layer and separated type material layer Layer, layer of polypropylene foil and the 4th adhesive layer；The surface that 4th adhesive layer contacts with separated type material layer has several convex Point；
The suction ripple layer is kneaded by component to be formed：
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,
Methyl methacrylate 10 ~ 30,
Vinyl acetate 1 ~ 3,
0.1 ~ 1 part of 2-hydroxyethyl methacry-late,
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,
5 ~ 10 parts of Nano graphite powder,
10 ~ 15 parts of cobalt chloride,
60 ~ 70 parts of unsaturated polyester (UP),
40 ~ 50 parts of neopelex.
Further improved technical scheme is as follows in above-mentioned technical proposal：
1st, in such scheme, 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.
2nd, in such scheme, the thickness of first adhesive layer is less than the thickness of the second adhesive layer, second adhesive layer Thickness be less than the 3rd adhesive layer.
3rd, in such scheme, the thickness ratio of the PET insulating barriers and layer of polypropylene foil is 10：4~6.
4th, in such scheme, the unsaturated polyester (UP) synthesized by maleic anhydride, phthalic anhydride and propane diols and Into.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1st, the present invention has the composite film-stuck of shielding electromagnetic field function, and it is inhaled ripple layer and uses composite wave-absorbing powder carbonyl iron 20 ~ 35 parts of powder, nickel sesquioxide, Nano graphite powder, cobalt chloride and butyl acrylate, 10 ~ 20 parts of acrylic acid, Isooctyl acrylate monomer 20 ~ 35 parts, methyl methacrylate 10 ~ 30, vinyl acetate 1 ~ 3,0.1 ~ 1 part of 2-hydroxyethyl methacry-late synergy, tool There is stronger electromaganic wave absorbing property, reach 85% in the attenuation rate of 2 ~ 10GHz electromagnetic waves, further add Sodium Polyacrylate 0.5 ~ 2 parts, 0.4 ~ 1 part of methyl ethyl ketone peroxide, it is gluing to not only improve polymer, also mixed powder is uniformly dispersed in the polymer, So as to ensure that the reliability of electromagnetic performance；Secondly, further it is equipped with unsaturated polyester (UP) in formula, neopelex carries The high whole heat conductivility for inhaling ripple layer, is advantageous to, by heat expanding caused by electromagnetic wave, improve stability and the production of performance Product service life.
2nd, the present invention has the composite film-stuck of shielding electromagnetic field function, improves the utilization rate of metal layer reflection electromagnetic field, The setting of metal level with several prismatic protrusions portions can form multiple absorption, significantly improve the wave absorbtion of Protection glue band Can, simultaneously as a large amount of electromagnetic wave absorptions in use, can cause temperature to raise, this gold with several prismatic protrusions portions Belong to layer, avoid the excessively concentration of heat, be advantageous to heat diffusion, also avoid, because temperature rise causes film to upwarp, improving product The stability of performance；Secondly, its PET insulating barrier is located on the outside of metal level, inhales and is disposed between ripple layer and separated type material layer 3rd adhesive layer, layer of polypropylene foil and the 4th adhesive layer, the effect of its proof voltage breakdown is greatly improved, also improves suction Ripple film strength；Again, the surface that its 4th adhesive layer contacts with separated type material layer has several salient points, when being advantageous to fitting The discharge of gas, so as to avoid the generation of bubble.
Brief description of the drawings
Accompanying drawing 1 has the composite film-stuck structural representation of shielding electromagnetic field function for the present invention.
In the figures above：1st, PET insulating barriers；2nd, metal level；3rd, ripple layer is inhaled；4th, separated type material layer；5th, the first adhesive layer；6、 Second adhesive layer；7th, the 3rd adhesive layer；8th, prismatic protrusions portion；9th, the 4th adhesive layer；10th, layer of polypropylene foil；11st, salient point.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment 1 ~ 4：A kind of composite film-stuck with shielding electromagnetic field function, including PET insulating barriers 1, metal level 2, suction Ripple layer 3 and separated type material layer 4, the first adhesive layer 5 is provided between this PET insulating barrier 1 and metal level 2, the metal level 2 is with inhaling It is provided with the second adhesive layer 6 between ripple layer 3, to be provided with several arranged in parallel with inhaling the surface that ripple layer 3 contacts for the metal level 2 Prismatic protrusions portion 8；The 3rd adhesive layer 7, layer of polypropylene foil are disposed between the suction ripple layer 3 and separated type material layer 4 10 and the 4th adhesive layer 9；The surface that 4th adhesive layer 9 contacts with separated type material layer 4 has several salient points 11；
The component for inhaling ripple layer 3 and content are as shown in table 1：
Table 1
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
100 parts of wave-absorbing powder 100 parts 100 parts 100 parts 100 parts
20 ~ 35 parts of butyl acrylate 20 parts 32 parts 30 parts 28 parts
10 ~ 20 parts of acrylic acid 10 parts 15 parts 18 parts 20 parts
20 ~ 35 parts of Isooctyl acrylate monomer 25 parts 22 parts 32 parts 35 parts
10 ~ 30 parts of methyl methacrylate 18 parts 26 parts 12 parts 28 parts
1 ~ 3 part of vinyl acetate 1 part 2.8 part 1.8 part 2 parts
0.1 ~ 1 part of 2-hydroxyethyl methacry-late 0.2 part 0.5 part 0.8 part 0.6 part
0.5 ~ 2 part of Sodium Polyacrylate 1.5 part 2 parts 1.2 part 0.9 part
0.4 ~ 1 part of methyl ethyl ketone peroxide 0.6 part 0.9 part 0.6 part 0.8 part
The wave-absorbing powder as shown in Table 2 content groups packet into：
Table 2
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
100 parts of carbonyl iron dust 100 parts 100 parts 100 parts 100 parts
50 ~ 60 parts of nickel sesquioxide 55 parts 5 parts 54 parts 60 parts
5 ~ 10 parts of Nano graphite powder 6 parts 8 parts 8 parts 9 parts
10 ~ 15 parts of cobalt chloride 12 parts 1.2 part 13 parts 15 parts
60 ~ 70 parts of unsaturated polyester (UP) 60 parts 68 parts 65 parts 62 parts
40 ~ 50 parts of neopelex 40 parts 50 parts 48 parts 42 parts
The thickness of above-mentioned first adhesive layer 5 is less than the thickness of the second adhesive layer 6, and the thickness of second adhesive layer 7 is less than 3rd adhesive layer 7.
The thickness ratio of above-mentioned PET insulating barriers 1 and layer of polypropylene foil 10 is 10：4~6.
Above-mentioned unsaturated polyester (UP) is synthesized by maleic anhydride, phthalic anhydride and propane diols and formed.
Embodiment 1 ~ 4 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 1 0.2mm -18 2~6
Embodiment 2 0.4mm -19 2~7
Embodiment 3 0.6mm -28 2~9
Embodiment 4 0.8mm -33 2~11
Inhale ripple layer and the electromagnetic wave that electronic product discharges is converted into heat energy or other forms in a manner of electrical loss, magnetic loss etc. Energy with reach reduce electromagnetic radiation effect, have preferable absorption in the range of 2 ~ 18GHz, can by incidence electromagnetic wave Reflection resorption ripple layer forms multiple absorption.
The above-mentioned thickness of PET insulating barriers 1 is 6 microns；The thickness ratio of the PET insulating barriers 1 and layer of polypropylene foil 10 is 10： 5。
Above-described embodiment has the preparation technology that ripple layer is inhaled in the Protection glue band for inhaling wave energy, comprises the following steps：
The first step：By 100 parts of carbonyl iron dust, 50 ~ 60 parts of nickel sesquioxide, 5 ~ 10 parts of Nano graphite powder, cobalt chloride 10 ~ 15 Part, 60 ~ 70 parts of unsaturated polyester (UP), 40 ~ 50 parts of neopelex are well mixed, and stir to be formed in 84 ~ 86 DEG C of conditions Mixed powder；
Second step：By 20 ~ 35 parts of butyl acrylate, 10 ~ 20 parts of acrylic acid, 20 ~ 35 parts of Isooctyl acrylate monomer, metering system Sour methyl esters 10 ~ 30, vinyl acetate 1 ~ 3,0.1 ~ 1 part of 2-hydroxyethyl methacry-late, 0.5 ~ 2 part of Sodium Polyacrylate and the first step Mixed powder mixing, and disperse 1 ~ 2 hour through high speed agitator, mixture formed so as to well mixed；
3rd step：It is incubated after the mixture of second step is heated into 80 ~ 85 DEG C in a kettle, point 1 in insulating process ~ 3 0.4 ~ 1 part of addition methyl ethyl ketone peroxides, which obtain, inhales ripple mixed liquor, and the soaking time is 4 ~ 10 hours；
4th step：The suction ripple mixed liquor that 3rd step obtains is coated on substrate；
5th step：Baking is carried out to the suction ripple mixed liquor in the 4th step and forms suction ripple layer.
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, it should all be included within the scope of the present invention.

Claims (5)

  1. A kind of 1. composite film-stuck with shielding electromagnetic field function, it is characterised in that：Including PET insulating barriers（1）, metal level（2）、 Inhale ripple layer（3）With separated type material layer（4）, PET insulating barriers（1）With metal level（2）Between be provided with the first adhesive layer（5）, it is described Metal level（2）With inhaling ripple layer（3）Between be provided with the second adhesive layer（6）, the metal level（2）With inhaling ripple layer（3）The table of contact Face is provided with several prismatic protrusions portions arranged in parallel（8）；The suction ripple layer（3）With separated type material layer（4）Between set successively It is equipped with the 3rd adhesive layer（7）, layer of polypropylene foil（10）With the 4th adhesive layer（9）；4th adhesive layer（9）With separated type material Layer（4）The surface of contact has several salient points（11）；
    The suction ripple layer（3）It is kneaded and is formed by component：
    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-hydroxyethyl methacry-late,
    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,
    5 ~ 10 parts of Nano graphite powder,
    10 ~ 15 parts of cobalt chloride,
    60 ~ 70 parts of unsaturated polyester (UP),
    40 ~ 50 parts of neopelex.
  2. 2. the composite film-stuck with shielding electromagnetic field function according to claim 1, it is characterised in that：The wave-absorbing powder Middle carbonyl iron dust, nickel sesquioxide, Nano graphite powder and cobalt chloride are according to 10：5：0.8：1.2 weight ratios mix.
  3. 3. the composite film-stuck with shielding electromagnetic field function according to claim 1, it is characterised in that：Described first is gluing Layer（5）Thickness be less than the second adhesive layer（6）Thickness, second adhesive layer（6）Thickness be less than the 3rd adhesive layer（7）.
  4. 4. the composite film-stuck with shielding electromagnetic field function according to claim 1, it is characterised in that：The PET insulation Layer（1）With layer of polypropylene foil（10）Thickness ratio be 10：4~6.
  5. 5. the composite film-stuck with shielding electromagnetic field function according to claim 1, it is characterised in that：It is described unsaturated poly- Ester is synthesized by maleic anhydride, phthalic anhydride and propane diols and formed.
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CN103740233A (en) * 2014-01-08 2014-04-23 南京信息工程大学 Micrometer wave absorbing coating material and preparation method thereof
CN103923337A (en) * 2014-04-30 2014-07-16 湖南兆恒材料科技有限公司 Composite polymethacrylimide foam wave absorption material
CN104202956A (en) * 2014-09-01 2014-12-10 斯迪克新型材料（江苏）有限公司 Pressure-sensitive adhesive film with anti-jamming function
CN104202957A (en) * 2014-09-01 2014-12-10 苏州斯迪克新材料科技股份有限公司 Wave-absorbing paster for electronic products
CN204183968U (en) * 2014-09-04 2015-03-04 斯迪克新型材料（江苏）有限公司 Composite electromagnetic wave absorbing film
CN204335282U (en) * 2014-09-01 2015-05-13 斯迪克新型材料（江苏）有限公司 There is the protective tapes inhaling wave energy

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Publication number Priority date Publication date Assignee Title
KR101337959B1 (en) * 2012-03-19 2013-12-09 현대자동차주식회사 Composite for shielding electromagnetic wave

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103740233A (en) * 2014-01-08 2014-04-23 南京信息工程大学 Micrometer wave absorbing coating material and preparation method thereof
CN103923337A (en) * 2014-04-30 2014-07-16 湖南兆恒材料科技有限公司 Composite polymethacrylimide foam wave absorption material
CN104202956A (en) * 2014-09-01 2014-12-10 斯迪克新型材料（江苏）有限公司 Pressure-sensitive adhesive film with anti-jamming function
CN104202957A (en) * 2014-09-01 2014-12-10 苏州斯迪克新材料科技股份有限公司 Wave-absorbing paster for electronic products
CN204335282U (en) * 2014-09-01 2015-05-13 斯迪克新型材料（江苏）有限公司 There is the protective tapes inhaling wave energy
CN204183968U (en) * 2014-09-04 2015-03-04 斯迪克新型材料（江苏）有限公司 Composite electromagnetic wave absorbing film

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