CN217103687U

CN217103687U - High-transmittance electromagnetic shielding adhesive tape

Info

Publication number: CN217103687U
Application number: CN202220751904.8U
Authority: CN
Inventors: 虞亮月; 刘川; 李晶
Original assignee: Ningbo Qihe New Material Technology Co ltd
Current assignee: Ningbo Qihe New Material Technology Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-08-02
Anticipated expiration: 2032-04-02

Abstract

The utility model discloses a high electromagnetic shield sticky tape that passes through relates to sticky tape technical field, including the sticky tape body, the top and the bottom symmetry fixedly connected with polypropylene layer of sticky tape body, supreme release layer, PET layer, pressure sensitive adhesive layer, ya keli conducting resin and the electromagnetic shield cladding material of including range upon range of in proper order are down followed to the sticky tape body, the polypropylene layer includes aluminium foil viscose layer and electromagnetic reflection layer, the top symmetry fixedly connected with adhesive linkage from the release layer. The utility model discloses, through the setting of preventing scraping layer and polypropylene layer, increase the viscidity of sticky tape body after the heating and improve the heat-seal effect to improve the wearability of sticky tape body, play the effect of preventing scraping, through the setting of adhesive linkage and transparent layer that connects, make between the sticky tape body connect through transparent layer, let the sticky tape body be the paragraph setting, be convenient for cut according to the use, and closely laminate the both sides of sticky tape body on the electronic equipment that needs the shielding through the adhesive linkage.

Description

High-transmittance electromagnetic shielding adhesive tape

Technical Field

The utility model relates to a sticky tape technical field, more specifically relates to a high electromagnetic shield sticky tape that passes through.

Background

The electromagnetic shielding adhesive tape is mainly used for electronic products such as wireless chargers, mobile phones, computers, PDAs, displays and copiers, has the characteristics of surface conduction, shielding of electromagnetic waves in the vertical direction, reflection of the electromagnetic waves, corrosion resistance of the surface and the like, and is characterized in that a pressure-sensitive adhesive is coated on one surface of PET, and a plurality of layers of conductive substances are electroplated on the other surface of the PET.

In chinese utility model patent application no: CN201921771482.5 discloses an electromagnetic shielding tape for preventing blue light, which includes a removable protective layer, an anti-static anti-fouling layer, an ink cementing layer, a substrate layer, an anti-blue light layer, an anti-magnetic layer and a low-viscosity conductive adhesive layer, which are stacked in sequence, wherein the anti-static anti-fouling layer is a surfactant layer of ionic small molecules or macromolecules, the anti-blue light layer includes a first zirconium dioxide adhesive layer, a silicon dioxide adhesive layer and a second zirconium dioxide adhesive layer, the shielding tape is wound in a roll shape, and the adhesive force between the removable protective layer and the anti-static anti-fouling layer is greater than the adhesive force between the removable protective layer and the low-viscosity conductive adhesive layer. The blue-light-proof electromagnetic shielding adhesive tape is complex in production process and flow in use, light and thin in structure, poor in electromagnetic shielding effect, thick in material, low in light transmittance, poor in corrosion resistance and easy to wear in use, and further reduces the application range.

Therefore, it is necessary to provide a highly transparent electromagnetic shielding tape to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to provide a: prevent electromagnetic shielding sticky tape in use production technology, flow complicacy of blue light in order to solve, and do not possess the structure frivolous, poor to electromagnetic shielding effect, adopt at the bottom of the thick light transmittance of material, corrosion resistance poor, easy in use wearing and tearing, problem that the range of application is little, the utility model provides a high electromagnetic shielding sticky tape that passes through.

(II) technical scheme

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a high electromagnetic shield sticky tape that passes through, includes the sticky tape body, the top and the symmetrical fixedly connected with polypropylene layer in bottom of sticky tape body, supreme from type layer, PET layer, pressure sensitive adhesive layer, ya keli conducting resin and the electromagnetic shield cladding material of stacking gradually are down followed to the sticky tape body, the polypropylene layer includes aluminium foil viscose layer and electromagnetic reflection layer, the top symmetry fixedly connected with adhesive linkage from the type layer, it is a plurality of the inner wall fixedly connected with on polypropylene layer and the substrate layer that the sticky tape body is connected.

Furthermore, the release layer is a common silicon release coating with a thickness of 19-75 μm.

Furthermore, the electromagnetic shielding coating is one of a plurality of layers of conductive metals, metal oxides and metal nitrides, and a copper foil with the thickness of 30-50 is adopted.

Further, the PET layer is a film made of common polyethylene terephthalate, and the thickness of the PET layer is 1-50 μm.

Further, the pressure-sensitive adhesive layer is one of an acrylic adhesive, a silica gel adhesive and a polyurethane adhesive, and the thickness of the pressure-sensitive adhesive layer is 1-50 μm.

Further, the thickness of the aluminum foil adhesive layer is 6-100 mu mm.

Furthermore, the pressure-sensitive adhesive layer has two layers, and is symmetrically distributed on the top and the bottom of the acrylic conductive adhesive.

(III) advantageous effects

The utility model has the advantages as follows:

1. the utility model discloses, through setting up the polypropylene layer, the viscidity that increases the sticky tape body after the heating improves the heat-seal effect to improve the wearability of sticky tape body, play and prevent the effect of scraping, and closely laminate the both sides of sticky tape body on the electronic equipment that needs the shielding through the adhesive linkage.

2. The utility model discloses, through setting up a plurality of substrate layers, increase the hardness of sticky tape body both sides, avoid appearing in use side or four corners perk, reduce electromagnetic shield effect, through pressure-sensitive adhesive layer and PET layer laminating rolling, through pressure-sensitive adhesive layer and ya keli conducting resin hybrid connection, the resistance value that reduces the sticky tape body is too high, electroplates through the exposed face on PET layer and goes up multilayer electrically conductive class material electromagnetic shield cladding material, processes into appointed width through the distribution, obtains the high electromagnetic shield sticky tape that passes through of finished product.

3. The utility model discloses, connect pressure-sensitive adhesive layer and aluminium foil viscose layer upon layer through ya keli conducting resin, improve printing opacity, abrasion resistance and the dampproofing ability of sticky tape body, through setting up the electromagnetic reflection layer in leaving the type in situ, avoid electromagnetic signal to pierce through the inside signal transmission of sticky tape body influence electronic equipment.

Drawings

Fig. 1 is a schematic perspective view of the structure of the present invention;

FIG. 2 is a schematic bottom view of the structure of the present invention;

FIG. 3 is a schematic perspective sectional view of the structure of the present invention;

fig. 4 is an enlarged schematic view of the structure of the area a in fig. 3 according to the present invention.

Reference numerals: 1. a tape body; 3. A polypropylene layer; 4. an adhesive layer; 6. A substrate layer; 7. an electromagnetic shielding coating; 8. a PET layer; 9. a pressure sensitive adhesive layer; 10. acrylic conductive adhesive; 11. an aluminum foil adhesive layer; 12. an electromagnetic reflective layer; 13. and a release layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, a high-transmittance electromagnetic shielding tape comprises a tape body 1, wherein polypropylene layers 3 are symmetrically and fixedly connected to the top and bottom of the tape body 1, the tape body 1 comprises, from bottom to top, a release layer 13, a PET layer 8, a pressure-sensitive adhesive layer 9, an acrylic conductive adhesive 10, and an electromagnetic shielding coating layer 7, which are sequentially stacked, the polypropylene layer 3 comprises an aluminum foil adhesive layer 11 and an electromagnetic reflection layer 12, the pressure-sensitive adhesive layer 9 has two layers, and is symmetrically distributed on the top and bottom of the acrylic conductive adhesive 10, the top of the release layer 13 is symmetrically and fixedly connected with the adhesive layer 4, the release layer 13 is a common silicon-based release coating, the thickness of which is 25 μm, the inner walls of the polypropylene layers 3 are fixedly connected with a substrate layer 6 connected with the tape body 1, the electromagnetic shielding coating layer 7 is a multilayer conductive metal, a copper foil with a thickness of 30 is adopted, the PET layer is a thin film made of common polyethylene terephthalate, the thickness of the acrylic conductive adhesive is 6 mu m, the acrylic conductive adhesive 10 is prepared by mixing and grinding resin, a curing agent, a cross-linking agent, a solvent and conductive metal particles, the pressure-sensitive adhesive layer 9 is an acrylic adhesive, the thickness of the pressure-sensitive adhesive layer is 10 mu m, and the thickness of the aluminum foil adhesive layer 11 is 12 mu m.

An electromagnetic shielding adhesive tape with high transparency is characterized in that an electromagnetic shielding coating 7 is formed by stacking four layers of a conductive nickel layer, a conductive silver layer, a conductive titanium oxide layer and a conductive indium tin oxide layer from a PET layer 9 to the outside in sequence.

Example 2

Referring to fig. 1-4, this embodiment is further optimized based on embodiment 1, and specifically, a high-transmittance electromagnetic shielding tape includes a tape body 1, the top and bottom of the tape body 1 are symmetrically and fixedly connected with polypropylene layers 3, the tape body 1 includes, from bottom to top, a release layer 13, a PET layer 8, a pressure-sensitive adhesive layer 9, an acrylic conductive adhesive 10, and an electromagnetic shielding coating layer 7, which are sequentially stacked, the polypropylene layer 3 includes an aluminum foil adhesive layer 11 and an electromagnetic reflection layer 12, the pressure-sensitive adhesive layers 9 are two layers and symmetrically distributed on the top and bottom of the acrylic conductive adhesive 10, the top of the release layer 13 is symmetrically and fixedly connected with an adhesive layer 4, the release layer 13 is a common silicon-based release coating layer with a thickness of 25 μm, the inner walls of the polypropylene layers 3 are fixedly connected with a substrate layer 6 connected with the tape body 1, and the electromagnetic shielding coating layer 7 is a multilayer metal oxide, the adhesive is characterized in that a copper foil sheet with the thickness of 40 is adopted, a PET layer is a film made of common polyethylene terephthalate, the thickness of the film is 12 mu m, an acrylic conductive adhesive 10 is prepared by mixing and grinding resin, a curing agent, a cross-linking agent, a solvent and conductive metal particles, a pressure-sensitive adhesive layer 9 is a silica gel adhesive, the thickness of the pressure-sensitive adhesive layer is 5 mu m, and the thickness of an aluminum foil adhesive layer 11 is 25 mu m.

An electromagnetic shielding adhesive tape with high transparency is characterized in that an electromagnetic shielding coating layer 7 is formed by stacking a conductive titanium oxide layer, a conductive gold layer and a conductive indium tin oxide layer from a PET layer 9 to the outside in sequence.

Example 3

Referring to fig. 1-4, the present embodiment is optimized based on example 1 or example 2, and specifically, the high-transmittance electromagnetic shielding tape includes a tape body 1, polypropylene layers 3 are symmetrically and fixedly connected to the top and bottom of the tape body 1, transparent connecting layers 5 are symmetrically and fixedly connected to both ends of the two tape bodies 1, the tape body 1 includes, from bottom to top, a release layer 13, a PET layer 8, a pressure-sensitive adhesive layer 9, an acrylic conductive adhesive 10, and an electromagnetic shielding coating layer 7, which are sequentially stacked, the polypropylene layer 3 includes an aluminum foil adhesive layer 11 and an electromagnetic reflection layer 12, the pressure-sensitive adhesive layer 9 has two layers and is symmetrically distributed on the top and bottom of the acrylic conductive adhesive 10, the top of the release layer 13 is symmetrically and fixedly connected with an adhesive layer 4, the release layer 13 is a common silicon-based release coating, the thickness of which is 25 μm, inner walls of the polypropylene layers 3 are fixedly connected with a substrate layer 6 connected to the tape body 1, the electromagnetic shielding coating 7 is a multilayer metal nitride, a copper foil with the thickness of 50 is adopted, the PET layer is a film made of common polyethylene terephthalate, the thickness of the PET layer is 25 mu m, the acrylic conductive adhesive 10 is prepared by mixing and grinding resin, a curing agent, a cross-linking agent, a solvent and conductive metal particles, the pressure-sensitive adhesive layer 9 is a polyurethane adhesive, the thickness of the polyurethane adhesive is 5 mu m, and the thickness of the aluminum foil adhesive layer 11 is 32 mu m.

An electromagnetic shielding adhesive tape with high transparency is characterized in that an electromagnetic shielding coating 7 is formed by stacking four layers of a conductive indium tin oxide layer, a conductive gold layer, a conductive silver layer and a conductive indium tin oxide layer from a PET layer 9 to the outside in sequence.

The electromagnetic shielding adhesive tape manufactured by the process has the characteristics of light and thin structure, excellent electromagnetic shielding effect, high light transmittance, excellent corrosion resistance, flatness and wide application range.

In summary, the following steps: the utility model discloses, through setting up the polypropylene layer 3, increase the viscidity of sticky tape body 1 after the heating and improve the heat-seal effect, and improve the wearability of sticky tape body 1, play the effect of preventing scraping, and through adhesive linkage 4 with the both sides of sticky tape body 1 closely laminate on the electronic equipment that needs the shielding, through setting up a plurality of substrate layers 6, increase the hardness of sticky tape body 1 both sides, avoid appearing in use side or four corners and appear the perk, reduce electromagnetic shield effect, through pressure sensitive adhesive layer 9 and PET layer 8 laminating rolling, through pressure sensitive adhesive layer 9 and ya keli conductive adhesive 10 hybrid connection, reduce the resistance value of sticky tape body 1 too high, through plating multilayer conductive material electromagnetic shielding coating 7 on the exposed surface of PET layer 8, through distributing and processing into appointed width, obtain the high electromagnetic shielding sticky tape that passes through, connect pressure sensitive adhesive layer 9 and aluminium foil viscose layer 11 layer through ya keli conductive adhesive 10, improve the printing opacity of sticky tape body 1, abrasion resistance and dampproofing ability, through set up electromagnetic reflection layer 12 in leaving type layer 13, avoid electromagnetic signal to penetrate sticky tape body 1 and influence the inside signal transmission of electronic equipment.

Above, only be the preferred embodiment of the present invention, not be used for limiting the present invention, the patent protection scope of the present invention is based on the claims, all the structural changes equivalent to the content of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high electromagnetic shield sticky tape that passes through, includes sticky tape body (1), its characterized in that: the top and the symmetrical fixedly connected with polypropylene layer in bottom (3) of sticky tape body (1), sticky tape body (1) is from supreme down including range upon range of in proper order from type layer (13), PET layer (8), pressure sensitive adhesive layer (9), ya keli conducting resin (10) and electromagnetic shield cladding material (7), polypropylene layer (3) are including aluminium foil viscose layer (11) and electromagnetic reflection layer (12), top symmetrical fixedly connected with adhesive linkage (4) from type layer (13), it is a plurality of the substrate layer (6) that the inner wall fixedly connected with and sticky tape body (1) of polypropylene layer (3) are connected.

2. The high-transmittance electromagnetic shielding tape according to claim 1, wherein: the release layer (13) is a common silicon release coating, and the thickness of the release layer is 19-75 μm.

3. The high-transmittance electromagnetic shielding tape according to claim 1, wherein: the electromagnetic shielding coating (7) is one of a plurality of layers of conductive metals, metal oxides and metal nitrides, and a copper foil with the thickness of 30-50 is adopted.

4. The high-transmittance electromagnetic shielding tape according to claim 1, wherein: the PET layer (8) is a film made of common polyethylene glycol terephthalate, and the thickness of the film is 1-50 mu m.

5. The high-transmittance electromagnetic shielding tape according to claim 1, wherein: the pressure-sensitive adhesive layer (9) is one of an acrylic adhesive, a silica gel adhesive and a polyurethane adhesive, and the thickness of the pressure-sensitive adhesive layer is 1-50 mu m.

6. The high-transmittance electromagnetic shielding tape according to claim 1, wherein: the thickness of the aluminum foil adhesive layer (11) is 6-100 mu mm.

7. The high-transmittance electromagnetic shielding tape according to claim 1, wherein: the pressure-sensitive adhesive layer (9) has two layers, and is symmetrically distributed at the top and the bottom of the acrylic conductive adhesive (10).