CN112251176A - Adhesive for adhering electromagnetic wave shielding of PDP (plasma display panel) protective screen and preparation method of functional film of adhesive - Google Patents

Adhesive for adhering electromagnetic wave shielding of PDP (plasma display panel) protective screen and preparation method of functional film of adhesive Download PDF

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CN112251176A
CN112251176A CN202011138077.7A CN202011138077A CN112251176A CN 112251176 A CN112251176 A CN 112251176A CN 202011138077 A CN202011138077 A CN 202011138077A CN 112251176 A CN112251176 A CN 112251176A
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adhesive
electromagnetic wave
wave shielding
parts
pdp
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宋仁圭
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Suzhou Weishengteke Electronics Co ltd
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Suzhou Weishengteke Electronics Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
    • C09J9/02—Electrically-conducting adhesives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2265—Oxides; Hydroxides of metals of iron
    • C08K2003/2272—Ferric oxide (Fe2O3)
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/001—Conductive additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/01—Magnetic additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/16—Metal
    • C09J2400/163—Metal in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2409/00—Presence of diene rubber
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2429/00—Presence of polyvinyl alcohol
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2461/00—Presence of condensation polymers of aldehydes or ketones

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention discloses an adhesive for adhering an electromagnetic wave shield of a PDP (plasma display panel) protective screen, which comprises the following components in percentage by mass: 70-90 parts of phenolic resin, 40-50 parts of butyronitrile latex, 20-30 parts of polyvinyl butyral, 10-20 parts of carbon powder, 1-5 parts of sodium carbonate powder and 40-50 parts of mixed solvent. The invention also discloses a preparation method of the functional film, which comprises the following steps: s1, spraying an adhesive on the copper sheet electroplated with silver by using a spin coater; and S2, covering a plastic film on the surface of the adhesive, and pressing for 1-2h by using a cold press to obtain the functional film for the electromagnetic wave shielding and adhering of the PDP protection screen. According to the adhesive for the electromagnetic wave shielding and adhering of the PDP protection screen, the carbon powder is added, the adhesive is solidified to cause volume shrinkage, carbon black is stably and continuously contacted and presents conductivity, and the adhesive is matched with magnetic iron oxide to play a role in shielding electromagnetic waves.

Description

Adhesive for adhering electromagnetic wave shielding of PDP (plasma display panel) protective screen and preparation method of functional film of adhesive
Technical Field
The invention relates to the technical field of electromagnetic wave shielding adhesives and films, in particular to an adhesive for adhering a PDP (plasma display panel) protective screen to an electromagnetic wave shield and a preparation method of a functional film of the adhesive.
Background
The PDP screen adopts plasma tubes as light-emitting elements, each plasma tube corresponds to a pixel on the screen, the screen uses glass as a substrate, the substrates are spaced at a certain distance, the periphery of the substrate is sealed and sealed in an airtight way to form a discharge space, mixed inert gases such as neon, xenon and the like are filled in the discharge space to be used as working media, metal oxide conductive films are coated on the inner side surfaces of the two glass substrates to be used as excitation electrodes, and when voltage is added to the electrodes, the mixed gases in the discharge space generate a plasma discharge phenomenon. The gas plasma discharge generates ultraviolet rays, which excite the phosphor screen, which emits visible light to develop an image.
However, electromagnetic waves generated by the PDP screen not only affect its own electromagnetic equipment, but also adversely affect surrounding electrical equipment and human body, and at present, in order to shield electromagnetic waves, an electromagnetic wave shielding functional film is generally selected, and the interior of the functional film is mainly bonded by an electromagnetic wave adhesive, and the existing adhesive has a phenomenon of large stress, easy aging and cracking, so that the service life of the functional film is short.
Therefore, the invention provides an adhesive for adhering the electromagnetic wave shielding of a PDP (plasma display panel) protective screen and a preparation method of a functional film of the adhesive.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an adhesive for adhering an electromagnetic wave shield of a PDP (plasma display panel) protective screen and a preparation method of a functional film of the adhesive.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention firstly discloses an adhesive for adhering the electromagnetic wave shielding of a PDP (plasma display panel) protective screen, which comprises the following components in percentage by mass: 70-90 parts of phenolic resin, 40-50 parts of butyronitrile latex, 20-30 parts of polyvinyl butyral, 10-20 parts of carbon powder, 1-5 parts of sodium carbonate powder and 40-50 parts of mixed solvent;
the preparation method of the adhesive for the electromagnetic wave shielding and pasting comprises the following steps:
s1, adding polyvinyl butyral, butyronitrile latex and a mixed solvent into phenolic resin, stirring for 2-3h at 70 ℃, and cooling for 2h to obtain a glue solution;
and S2, adding the carbon powder and the sodium carbonate powder into the glue solution prepared in the step 1, and stirring for 10-20min to prepare the adhesive for electromagnetic wave shielding and bonding.
Preferably, the mixed solvent consists of a 95% ethanol solution and an ethyl acetate solution, and the mass ratio of the 95% ethanol solution to the ethyl acetate solution is 1: 1.
Preferably, the carbon black content in the carbon powder is 50-60%, the particle size of the carbon black is 0.1-0.4 μm, and the magnetic iron oxide content in the carbon powder is 1-5%.
The invention also discloses a preparation method of the functional film adhered to the surface of the PDP protection screen by adopting the adhesive for electromagnetic wave shielding adhesion, the functional film comprises a film base layer, a metal layer and an adhesive layer, the upper surface and the lower surface of the metal layer are both adhered to the film base layer through the adhesive layer, the adhesive layer is formed by uniformly coating the prepared adhesive for electromagnetic wave shielding adhesion, the thickness of the adhesive layer is 5-10 mu m, the film base layer is a plastic film with the transmittance of more than 90 percent, the thickness of the film base layer is 5-20 mu m, the main material of the metal layer is a copper grid, and the surface of the metal layer is electroplated with silver;
the preparation method of the functional film comprises the following steps:
s1, spraying an adhesive on the copper sheet electroplated with silver by using a spin coater;
and S2, covering a plastic film on the surface of the adhesive, and pressing for 1-2h by using a cold press to obtain the functional film for the electromagnetic wave shielding and adhering of the PDP protection screen.
The invention has the following beneficial effects:
1. according to the adhesive for the electromagnetic wave shielding and bonding of the PDP protection screen, the polyvinyl butyral and the mixed solution are added into the phenolic resin, so that the heat-resistant temperature of the adhesive is improved, the condition of overheating failure is effectively prevented, meanwhile, the toughness of the adhesive is also improved, and by adding the carbon powder, the carbon black and the magnetic iron oxide in the carbon powder, after the conductive adhesive is cured or dried, the volume of the adhesive is shrunk due to the curing of the adhesive, so that the carbon black is in stable continuous contact and presents conductivity, and the adhesive is matched with the magnetic iron oxide to play a role in shielding electromagnetic waves.
2. According to the adhesive for the electromagnetic wave shielding and adhering of the PDP protection screen, the butyronitrile latex is added into the phenolic resin, so that the elasticity of an adhesive layer is improved, the internal force is reduced, the aging and cracking time of the adhesive is prolonged, the initial viscosity, the adhesion and the water resistance of the adhesive are improved, and the curing temperature and the curing time of the adhesive are effectively reduced by adding the sodium carbonate powder and the inorganic salt.
Drawings
FIG. 1 is a schematic view of a functional film structure according to the present invention.
In the figure: 1 film base layer, 2 metal layer, 3 adhesive layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Preparation of an adhesive for electromagnetic wave shielding and laminating of a PDP (plasma display panel) protective screen:
an adhesive for shielding and adhering electromagnetic waves of a PDP (plasma display panel) protective screen comprises the following components in parts by mass: 90 parts of phenolic resin, 50 parts of butyronitrile latex, 20 parts of polyvinyl butyral, 10 parts of carbon powder, 1 part of sodium carbonate powder and 40 parts of mixed solvent, wherein the content of carbon black in the carbon powder is 50%, the average particle size of the carbon black is 0.3 mu m, the content of magnetic iron oxide in the carbon powder is 3%, the mixed solvent consists of 95% ethanol solution and ethyl acetate solution, and the mass ratio of the 95% ethanol solution to the ethyl acetate solution is 1: 1.
The preparation method of the adhesive for the electromagnetic wave shielding and pasting comprises the following steps:
s1, adding polyvinyl butyral, butyronitrile latex and a mixed solvent into phenolic resin, stirring for 2 hours at 70 ℃, and cooling for 2 hours to obtain a glue solution;
and S2, adding the carbon powder and the sodium carbonate powder into the glue solution prepared in the step 1, and stirring for 15min to prepare the adhesive for electromagnetic wave shielding and bonding.
A preparation method of a functional film for pasting electromagnetic wave shielding of a PDP protection screen comprises the following steps:
a functional film for adhering electromagnetic wave shielding of a PDP (plasma display panel) protective screen comprises a film base layer 1, a metal layer 2 and an adhesive layer 3, wherein the upper surface and the lower surface of the metal layer 2 are adhered to the film base layer 1 through the adhesive layer 3, the adhesive layer 3 is formed by uniformly coating the prepared adhesive for adhering the electromagnetic wave shielding, the thickness of the adhesive layer is 10 micrometers, the film base layer 1 is a plastic film with the transmittance of 95%, the thickness of the film base layer 1 is 20 micrometers, the main material of the metal layer 2 is copper, and the surface of the metal layer 2 is electroplated with silver.
The preparation method of the functional film comprises the following steps:
s1, spraying an adhesive on the copper sheet electroplated with silver by using a spin coater;
and S2, covering a plastic film on the surface of the adhesive, and pressing for 2 hours by using a cold press to obtain the functional film for the electromagnetic wave shielding and adhering of the PDP protection screen.
Example 2
Preparation of an adhesive for electromagnetic wave shielding and laminating of a PDP (plasma display panel) protective screen:
an adhesive for shielding and adhering electromagnetic waves of a PDP (plasma display panel) protective screen comprises the following components in parts by mass: 70 parts of phenolic resin, 40 parts of butyronitrile latex, 30 parts of polyvinyl butyral, 10 parts of carbon powder, 10 parts of sodium carbonate powder and 40 parts of mixed solvent, wherein the content of carbon black in the carbon powder is 50%, the average particle size of the carbon black is 0.3 mu m, the content of magnetic iron oxide in the carbon powder is 3%, the mixed solvent consists of 95% ethanol solution and ethyl acetate solution, and the mass ratio of the 95% ethanol solution to the ethyl acetate solution is 1: 1.
The preparation method of the adhesive for the electromagnetic wave shielding and pasting comprises the following steps:
s1, adding polyvinyl butyral, butyronitrile latex and a mixed solvent into phenolic resin, stirring for 2 hours at 70 ℃, and cooling for 2 hours to obtain a glue solution;
and S2, adding the carbon powder and the sodium carbonate powder into the glue solution prepared in the step 1, and stirring for 15min to prepare the adhesive for electromagnetic wave shielding and bonding.
A preparation method of a functional film for pasting electromagnetic wave shielding of a PDP protection screen comprises the following steps:
a functional film for adhering electromagnetic wave shielding of a PDP (plasma display panel) protective screen comprises a film base layer 1, a metal layer 2 and an adhesive layer 3, wherein the upper surface and the lower surface of the metal layer 2 are adhered to the film base layer 1 through the adhesive layer 3, the adhesive layer 3 is formed by uniformly coating the prepared adhesive for adhering the electromagnetic wave shielding, the thickness of the adhesive layer is 10 micrometers, the film base layer 1 is a plastic film with the transmittance of 95%, the thickness of the film base layer 1 is 20 micrometers, the main material of the metal layer 2 is copper, and the surface of the metal layer 2 is electroplated with silver.
The preparation method of the functional film comprises the following steps:
s1, spraying an adhesive on the copper sheet electroplated with silver by using a spin coater;
and S2, covering a plastic film on the surface of the adhesive, and pressing for 2 hours by using a cold press to obtain the functional film for the electromagnetic wave shielding and adhering of the PDP protection screen.
Example 3
Preparation of an adhesive for electromagnetic wave shielding and laminating of a PDP (plasma display panel) protective screen:
an adhesive for shielding and adhering electromagnetic waves of a PDP (plasma display panel) protective screen comprises the following components in parts by mass: 90 parts of phenolic resin, 40 parts of butyronitrile latex, 20 parts of polyvinyl butyral, 20 parts of carbon powder, 5 parts of sodium carbonate powder and 40 parts of mixed solvent, wherein the content of carbon black in the carbon powder is 50%, the average particle size of the carbon black is 0.3 mu m, the content of magnetic iron oxide in the carbon powder is 3%, the mixed solvent consists of 95% ethanol solution and ethyl acetate solution, and the mass ratio of the 95% ethanol solution to the ethyl acetate solution is 1: 1.
The preparation method of the adhesive for the electromagnetic wave shielding and pasting comprises the following steps:
s1, adding polyvinyl butyral, butyronitrile latex and a mixed solvent into phenolic resin, stirring for 2 hours at 70 ℃, and cooling for 2 hours to obtain a glue solution;
and S2, adding the carbon powder and the sodium carbonate powder into the glue solution prepared in the step 1, and stirring for 15min to prepare the adhesive for electromagnetic wave shielding and bonding.
A preparation method of a functional film for pasting electromagnetic wave shielding of a PDP protection screen comprises the following steps:
a functional film for adhering electromagnetic wave shielding of a PDP (plasma display panel) protective screen comprises a film base layer 1, a metal layer 2 and an adhesive layer 3, wherein the upper surface and the lower surface of the metal layer 2 are adhered to the film base layer 1 through the adhesive layer 3, the adhesive layer 3 is formed by uniformly coating the prepared adhesive for adhering the electromagnetic wave shielding, the thickness of the adhesive layer is 10 micrometers, the film base layer 1 is a plastic film with the transmittance of 95%, the thickness of the film base layer 1 is 20 micrometers, the main material of the metal layer 2 is copper, and the surface of the metal layer 2 is electroplated with silver.
The preparation method of the functional film comprises the following steps:
s1, spraying an adhesive on the copper sheet electroplated with silver by using a spin coater;
and S2, covering a plastic film on the surface of the adhesive, and pressing for 2 hours by using a cold press to obtain the functional film for the electromagnetic wave shielding and adhering of the PDP protection screen.
Example 4
Preparation of an adhesive for electromagnetic wave shielding and laminating of a PDP (plasma display panel) protective screen:
an adhesive for shielding and adhering electromagnetic waves of a PDP (plasma display panel) protective screen comprises the following components in parts by mass: 70 parts of phenolic resin, 50 parts of butyronitrile latex, 20 parts of polyvinyl butyral, 10 parts of carbon powder, 5 parts of sodium carbonate powder and 40 parts of mixed solvent, wherein the content of carbon black in the carbon powder is 50%, the average particle size of the carbon black is 0.3 mu m, the content of magnetic iron oxide in the carbon powder is 3%, the mixed solvent consists of 95% ethanol solution and ethyl acetate solution, and the mass ratio of the 95% ethanol solution to the ethyl acetate solution is 1: 1.
The preparation method of the adhesive for the electromagnetic wave shielding and pasting comprises the following steps:
s1, adding polyvinyl butyral, butyronitrile latex and a mixed solvent into phenolic resin, stirring for 2 hours at 70 ℃, and cooling for 2 hours to obtain a glue solution;
and S2, adding the carbon powder and the sodium carbonate powder into the glue solution prepared in the step 1, and stirring for 15min to prepare the adhesive for electromagnetic wave shielding and bonding.
A preparation method of a functional film for pasting electromagnetic wave shielding of a PDP protection screen comprises the following steps:
a functional film for adhering electromagnetic wave shielding of a PDP (plasma display panel) protective screen comprises a film base layer 1, a metal layer 2 and an adhesive layer 3, wherein the upper surface and the lower surface of the metal layer 2 are adhered to the film base layer 1 through the adhesive layer 3, the adhesive layer 3 is formed by uniformly coating the prepared adhesive for adhering the electromagnetic wave shielding, the thickness of the adhesive layer is 10 micrometers, the film base layer 1 is a plastic film with the transmittance of 95%, the thickness of the film base layer 1 is 20 micrometers, the main material of the metal layer 2 is copper, and the surface of the metal layer 2 is electroplated with silver.
The preparation method of the functional film comprises the following steps:
s1, spraying an adhesive on the copper sheet electroplated with silver by using a spin coater;
and S2, covering a plastic film on the surface of the adhesive, and pressing for 2 hours by using a cold press to obtain the functional film for the electromagnetic wave shielding and adhering of the PDP protection screen.
Performance detection
The physical properties of the functional films prepared in examples 1 to 4 were measured and compared with those of a general electromagnetic wave-shielding film, and the measurement items include electromagnetic wave-shielding characteristics (using the KEC method at 1 GHz), peel strength and weather resistance (UV xenon lamp aging test), and the measurement results are shown in Table 1.
TABLE 1
Figure BDA0002737392200000081
Figure BDA0002737392200000091
In the present invention, the physical properties of the functional film for electromagnetic wave shielding and bonding of PDP protection panels prepared in examples 1 to 4 in table 1 are compared with those of a general electromagnetic wave shielding film, so that the electromagnetic wave shielding property is improved, the weather resistance is improved, the aging and cracking time of the adhesive is effectively prolonged, and the service life of the functional film is prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (4)

1. The adhesive for the electromagnetic wave shielding and adhering of the PDP protection screen is characterized by comprising the following components in percentage by mass: 70-90 parts of phenolic resin, 40-50 parts of butyronitrile latex, 20-30 parts of polyvinyl butyral, 10-20 parts of carbon powder, 1-5 parts of sodium carbonate powder and 40-50 parts of mixed solvent;
the preparation method of the adhesive for adhering the electromagnetic wave shielding comprises the following steps:
s1, adding polyvinyl butyral, butyronitrile latex and a mixed solvent into phenolic resin, stirring for 2-3h at 70 ℃, and cooling for 2h to obtain a glue solution;
and S2, adding the carbon powder and the sodium carbonate powder into the glue solution prepared in the step 1, and stirring for 10-20min to prepare the adhesive for electromagnetic wave shielding and bonding.
2. The adhesive for electromagnetic wave shielding attachment of a PDP protection panel according to claim 1, wherein: the mixed solvent consists of a 95% ethanol solution and an ethyl acetate solution, and the mass ratio of the 95% ethanol solution to the ethyl acetate solution is 1: 1.
3. The adhesive for electromagnetic wave shielding attachment of a PDP protection panel according to claim 1, wherein: the carbon powder contains 50-60% of carbon black, the particle size of the carbon black is 0.1-0.4 μm, and the content of magnetic iron oxide in the carbon powder is 1-5%.
4. A method for preparing a functional film adhered to the surface of a PDP protection panel using the adhesive for electromagnetic wave shielding attachment according to claim 1, comprising: the functional film comprises a film base layer, a metal layer and a bonding layer, wherein the upper surface and the lower surface of the metal layer are bonded with the film base layer through the bonding layer, the bonding layer is formed by uniformly coating the prepared adhesive for electromagnetic wave shielding bonding, the thickness of the bonding layer is 5-10 mu m, the film base layer is a plastic film with the transmittance of more than 90%, the thickness of the film base layer is 5-20 mu m, the main material of the metal layer is a copper grid, and the surface of the metal layer is electroplated with silver;
the preparation method of the functional film comprises the following steps:
s1, spraying an adhesive on the copper sheet electroplated with silver by using a spin coater;
and S2, covering a plastic film on the surface of the adhesive, and pressing for 1-2h by using a cold press to obtain the functional film for the electromagnetic wave shielding and adhering of the PDP protection screen.
CN202011138077.7A 2020-10-22 2020-10-22 Adhesive for adhering electromagnetic wave shielding of PDP (plasma display panel) protective screen and preparation method of functional film of adhesive Pending CN112251176A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6344155B1 (en) * 1999-04-06 2002-02-05 Tomoegawa Paper Co., Ltd. Electrically conductive adhesive composition, electrically conductive adhesive sheet and use thereof
CN104371616A (en) * 2013-08-15 2015-02-25 何书凤 Preparation method of phenolic resin conductive adhesive
CN111491499A (en) * 2019-01-28 2020-08-04 臻鼎科技股份有限公司 Electromagnetic shielding film and manufacturing method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6344155B1 (en) * 1999-04-06 2002-02-05 Tomoegawa Paper Co., Ltd. Electrically conductive adhesive composition, electrically conductive adhesive sheet and use thereof
CN104371616A (en) * 2013-08-15 2015-02-25 何书凤 Preparation method of phenolic resin conductive adhesive
CN111491499A (en) * 2019-01-28 2020-08-04 臻鼎科技股份有限公司 Electromagnetic shielding film and manufacturing method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
柴春鹏 等: "《高分子合成材料学》", 31 January 2019, 北京理工大学出版社 *

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