CN113122168A - Optical transparent adhesive with electromagnetic shielding function and preparation method thereof - Google Patents
Optical transparent adhesive with electromagnetic shielding function and preparation method thereof Download PDFInfo
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- CN113122168A CN113122168A CN202110350058.9A CN202110350058A CN113122168A CN 113122168 A CN113122168 A CN 113122168A CN 202110350058 A CN202110350058 A CN 202110350058A CN 113122168 A CN113122168 A CN 113122168A
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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
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
-
- 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
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J11/08—Macromolecular additives
-
- 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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
Abstract
The invention relates to an optical transparent adhesive with electromagnetic shielding function, which comprises a high-molecular base material for forming the optical transparent adhesive and ionic liquid dispersed in the high-molecular base material. The ionic liquid and the polymer base material forming the optical transparent adhesive are mixed to obtain the OCA material with high conductivity, the OCA material is used for replacing the existing OCA to attach and connect different stacking materials, and the electromagnetic shielding function can be provided in the display panel. In addition, the addition of the ionic liquid does not influence the temperature stability, light transmittance and adhesion of the OCA material.
Description
Technical Field
The invention relates to the technical field of optical transparent adhesive tapes, in particular to an optical transparent adhesive tape with an electromagnetic shielding function and a preparation method thereof.
Background
Electronic equipment can produce electromagnetic radiation at the during operation, and electromagnetic wave's interference can influence the normal work of other electronic equipment, components and parts, and too high electromagnetic radiation also can bring the harm to environment and health simultaneously. The electromagnetic shielding measures can prevent electromagnetic signals inside electronic equipment and components from radiating and prevent external electromagnetic signals from entering to generate interference. At present, the electromagnetic shielding is usually achieved by surrounding the electromagnetic radiation source or the object to be protected with an electromagnetic shielding material.
The high-conductivity material has a large number of carriers which can move freely, moves under the action of an external electromagnetic field to generate an electromagnetic field in the opposite direction, and counteracts the external electromagnetic field, so that the electromagnetic radiation is weakened. The display panel is used as a standard configuration of a display device, and has a small thickness, so that electromagnetic radiation is serious, and the display panel is easily interfered by external electromagnetic signals, and therefore, the shielding of the electromagnetic radiation on the display panel has an important meaning. In the prior art, a transparent conductive film layer is generally used to realize electromagnetic shielding, but the overall thickness of the display panel is often increased, and the light transmittance may be reduced to affect the display effect.
The Optically Clear Adhesive (OCA) has good adhesive ability and extremely high light transmittance, and is used for bonding and connecting different stacked materials in a display panel, so that the Optically Clear Adhesive (OCA) is an indispensable component. If the OCA material with high conductivity is prepared, the traditional OCA material is replaced in some structures of the display panel, and the electromagnetic shielding function can be added on the premise of not influencing the whole thickness and the display effect of the display panel.
Disclosure of Invention
Technical problem to be solved
In view of the above drawbacks and deficiencies of the prior art, the present invention provides an Optically Clear Adhesive (OCA) with electromagnetic shielding function, which is used to replace the existing OCA material, and is used in various electronic products such as display panels, etc. requiring different stacked materials to be bonded and connected, and can provide electromagnetic shielding function to reduce the electromagnetic radiation of the electronic products to the surrounding environment or the interference of external electromagnetic signals, while satisfying the basic function of "bonding" connection.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
in a first aspect, the present invention provides an optical transparent adhesive with an electromagnetic shielding function, which includes a polymer substrate for forming the optical transparent adhesive and an ionic liquid dispersed in the polymer substrate.
Preferably, the ionic liquid is an organic salt consisting of an organic cation and an organic/inorganic anion, and is an ionic compound that is liquid at normal temperature.
Preferably, the organic cation of the ionic liquid is one or more of imidazole type, pyrrole type, pyridine type, morpholine type, piperidine type, quaternary ammonium type, quaternary phosphonium type and guanidine type; the anion of the ionic liquid is one or more of halogen ion (such as chloride ion, iodide ion and the like), alkali ion (such as hydroxide radical), fluorine-containing ion, oxometallate ion (such as sulfate radical, sulfite radical, phosphate radical, nitrate radical and the like), amino acid radical ion, ester radical ion and halide ion.
Preferably, the polymer substrate for forming the optical transparent adhesive is one of polyacrylate, epoxy resin, polyurethane, unsaturated polyester and silicone. Specifically, the acrylic modified silicone resin can be methyl methacrylate/butyl acrylate copolymer, or aliphatic glycidyl ether and low molecular weight bisphenol A epoxy resin, or acrylic modified silicone resin.
Preferably, one or two of a transparent conductive polymer material and a metal high-conductivity transparent material are further doped in the polymer base material, so that the conductivity of the OCA is further improved, and the electromagnetic shielding effect is improved.
Preferably, transparent electromagnetic shielding material is further doped in the polymer base material, so that the electromagnetic shielding effect of the OCA is further improved.
The transparent conductive polymer material may be, for example, poly (3, 4-ethylenedioxythiophene) -polystyrene sulfonic acid (PEDOT/PSS), Polyacetylene (PA), polypyrrole (Ppy), Polythiophene (PYi), polyaniline (PAn), poly (p-phenylenevinylene) (PPV), or the like. The metal high-conductivity transparent material is indium tin oxide (ITO, In)2O3Sn), aluminum-doped zinc oxide (AZO, ZnO: Al), fluorine-doped tin oxide (FTO, SnO)2F) antimony-doped tin oxide (ATO, Sn)2O: Sb), and the like. The transparent electromagnetic shielding material is, for example, Indium Tin Oxide (ITO), few-layer graphene (double-layer graphene has an electromagnetic shielding effectiveness increased by 3dB compared with single-layer graphene), metal nanowire, carbon nanotube, or the like.
In a second aspect, the present invention further provides a preparation method of an optical transparent adhesive with an electromagnetic shielding function, wherein the preparation method comprises:
and dispersing the ionic liquid into the high-molecular base material for forming the optical transparent adhesive by adopting any one of a solution pouring method, an in-situ polymerization method and an immersion swelling method.
Preferably, at least one of the transparent conductive polymer material, the metal highly conductive transparent material and the transparent electromagnetic shielding material is blended and dispersed into the polymer base material by adopting a solution casting method or an in-situ polymerization method.
Specifically, the technical scheme comprises the following steps: ionic liquid is dispersed in the high molecular base material for forming the optical transparent adhesive tape; ionic liquid + transparent conductive polymer material; ionic liquid + metal high-conductivity transparent material; ionic liquid, transparent conductive high polymer material and metal high-conductivity transparent material; the ionic liquid + transparent conductive polymer material + metal high conductive transparent material + transparent electromagnetic shielding material.
Wherein, the metal high-conductivity transparent material and the transparent electromagnetic shielding material are dispersed in the polymer base material in the form of powder or short fiber; the transparent conductive polymer material and the polymer base material for forming the optical transparent adhesive are blended by adopting a mixed solution pouring method or an in-situ polymerization method.
When the mixed solution is mixed by adopting a mixed solution pouring method, the polymer base material and the transparent conductive polymer material are mutually fused into a whole as a dispersion matrix. When the in-situ polymerization method is adopted for mixing, the molecular chains of the polymer substrate are mutually crossed or even cross-linked with the molecular chains of the transparent conductive polymer material to form a three-dimensional network structure.
The in-situ polymerization method is to prepare the monomer and the initiator for generating the polymer base material and the monomer and the initiator for generating the transparent conductive polymer material respectively, and to obtain the polymer material through cross-linking polymerization after mixing.
An ionic liquid is an organic salt consisting of an organic cation and an organic or inorganic anion, which is generally liquid at room temperature. The ionic gel can be obtained by mixing the ionic liquid with certain polymer matrix materials, and has the advantages of good mechanical property, temperature stability and high conductivity. By utilizing the preparation method of the ionic gel, the ionic liquid and the high-molecular base material for OCA are mixed to obtain the OCA material with high conductivity, the OCA material is used for replacing the existing OCA to attach and connect different stacking materials, and the electromagnetic shielding function can be provided in the display panel. So far, no report on the development of ionic liquid in conductive OCA materials and the application of the ionic liquid in electromagnetic shielding functions is found.
(III) advantageous effects
The invention has the technical effects that:
according to the invention, by using the preparation method of the ionic gel, the ionic liquid and the high-molecular base material for OCA are mixed to obtain the OCA material with high conductivity, and the OCA material is used for replacing the existing OCA to attach and connect different stacking materials, so that the OCA not only has the bonding capability of common OCAs, but also can provide an electromagnetic shielding function in the display panel, and reduce the interference of the display panel on the electromagnetic radiation of the surrounding environment or external electromagnetic signals. Since the OCA glue is a necessary component for preparing electronic equipment such as a display, the OCA material with the electromagnetic shielding function is beneficial to thinning the thickness of a multilayer laminated material electronic component such as a display panel.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail below with reference to specific embodiments.
Example 1
The OCA polymer base material is methyl methacrylate/butyl acrylate block copolymer, and the ionic liquid is 1-butyl-3-methylimidazole bistrifluoromethylsulfonyl imide ([ BMIN ]][NTf2])。
In the embodiment, the optical transparent adhesive with the electromagnetic shielding function is prepared by adopting a mixed solution pouring method, and ethyl acetate is used as a solvent. The specific process is as follows: dissolving the polymer substrate in ethyl acetate to form polymer solution, and adding [ BMIN][NTf2]Adding the ionic liquid into the high polymer solution, and uniformly mixing, wherein the mass ratio of the ionic liquid to the OCA high polymer base material is 2: 1. And coating the mixed solution on the surface of the high-transparency glass, and heating and drying to completely volatilize the ethyl acetate solvent to obtain the electromagnetic shielding OCA glue with the thickness of 100 microns. The test result shows that the sheet resistance of the OCA adhesive is 3 x 10^4 omega/sq, and is 8-1The electromagnetic shielding effectiveness at 2GHz is about 10 dB.
OCA gels without ionic liquids ([ BMIN ] [ NTf2]) were prepared as described above. The temperature stability, adhesive ability, and light transmittance of the two were compared.
Wherein, the high temperature resistance test shows the mass loss of the OCA glue before and after being baked for 24 hours at 80 ℃; testing the adhesive force of the OCA adhesive, and inspecting the 180-degree stripping force value of the OCA adhesive on the surface of the glass; and (3) testing the visible light transmittance of the OCA glue on the glass substrate.
| Performance of | This example | Without addition of ionic liquid |
| Loss of mass | 0％ | 0％ |
| 180 degree peel force | 1100g/25mm | 1005g/25mm |
| Light transmittance | 94.1％ | 94.5％ |
As shown in the table, the addition of the ionic liquid does not affect the original high temperature resistance, light transmittance and adhesion of the OCA material.
Example 2
In this example, OCA high molecular monomerButyl Acrylate (BA), hexanediol diacrylate (HDDA) as a crosslinking agent, phenylbis (2,4, 6-trimethylbenzoyl) phosphine oxide (Omnirad 819) as an initiator, and BMIN as an ionic liquid][NTf2]。
In this embodiment, an in-situ polymerization method is adopted to prepare the optical transparent adhesive with the electromagnetic shielding function. The specific process is as follows: mixing BA monomer, HDDA cross-linking agent, Omnirad 819 initiator and ionic liquid [ BMIN ]][NTf2]And (4) uniformly mixing. The mass ratio of the ionic liquid to the monomer BA is 2:1, the molar fraction of the cross-linking agent in the monomer is 0.2 mol%, and the mass fraction of the initiator in the monomer is 1 wt%. And coating the mixed solution on the surface of the high-transparency glass, polymerizing the monomers through Ultraviolet (UV) curing and crosslinking through a crosslinking agent to obtain an OCA polymer substrate, and locking the ionic liquid in the OCA polymer substrate through a hydrogen bond effect to finally form the electromagnetic shielding OCA adhesive with the thickness of 100 microns. The test result shows that the sheet resistance of the OCA glue is 2 x 10^4 omega/sq, and the electromagnetic shielding effectiveness at 8-12GHz is about 10 dB.
Example 3
In this example, the OCA polymer monomer is Acrylic Acid (AA), the crosslinking agent is polyethylene glycol and acrylate (PEGDA), the initiator is 2-hydroxy-2-methyl-1-phenyl acetone (Omnirad 1173), and the ionic liquid is 1-ethyl-3-methylimidazolium ethyl sulfate [ EMIN ]]EtSO4]The poly (3, 4-ethylenedioxythiophene-polystyrene sulfonic acid (PEDOT/PSS) is used as a conductive polymer additive.
In this embodiment, an in-situ polymerization method is adopted to prepare the optical transparent adhesive with the electromagnetic shielding function.
The specific process is as follows: AA monomer, PEGDA cross-linking agent, Omnirad 1173 initiator and ionic liquid [ EMIN][EtSO4]And uniformly mixing with conductive polymer PEDOT/PSS. The mass ratio of the ionic liquid to the monomer is 3:2, the molar fraction of the cross-linking agent in the monomer is 0.2 mol%, the mass fraction of the initiator in the monomer is 1 wt%, and the mass fraction of the conductive polymer in the monomer is 50 wt%. Coating the mixed solution on the surface of high-transparency glass, polymerizing monomers through Ultraviolet (UV) curing and crosslinking through a crosslinking agent to obtain an OCA (optically clear adhesive) polymer substrate, locking the ionic liquid in the OCA polymer substrate through hydrogen bond action, and mixing the conductive polymer with the OCA polymer substrateAnd uniformly mixing the OCA high polymer base materials to finally form the electromagnetic shielding OCA glue with the thickness of 100 mu m. The test result shows that the sheet resistance of the OCA glue is 2 x 10^2 omega/sq, and the electromagnetic shielding effectiveness at 8-12GHz is about 20 dB.
Preparation of non-ionic liquid ([ EMIN ] according to the above method][EtSO4]) The OCA glue of (1). The temperature stability, adhesive ability, and light transmittance of the two were compared.
| Performance of | This example | Without addition of ionic liquid |
| Loss of mass | 0％ | 0％ |
| 180 degree peel force | 1060g/25mm | 980g/25mm |
| Light transmittance | 93.9％ | 94.1％ |
Example 4
The OCA polymer base material is methyl methacrylate/butyl acrylate block copolymer, and the ionic liquid is 1-butyl-3-methylimidazole bistrifluoromethylsulfonyl imide ([ BMIN ]][NTf2])。
In the embodiment, the optical transparent adhesive with the electromagnetic shielding function is prepared by adopting a mixed solution pouring method, and ethyl acetate is used as a solvent.
The specific process is as follows: dissolving the polymer substrate in ethyl acetate to form polymer solution, and adding [ BMIN][NTf2]Adding the ionic liquid and ITO powder into the high polymer solution, and uniformly mixing, wherein the mass ratio of the ionic liquid to the OCA high polymer base material is 2:1, and the ITO powder accounts for 2.5 wt% of the OAC high polymer base material. And coating the mixed solution on the surface of the high-transparency glass, and heating and baking to completely volatilize the ethyl acetate solvent to obtain the electromagnetic shielding OCA glue with the thickness of 100 microns. The test result shows that the sheet resistance of the OCA glue is 3 x 10^4 omega/sq, and the electromagnetic shielding effectiveness at 8-12GHz is about 12 dB.
Example 5
The OCA polymer base material is methyl methacrylate/butyl acrylate block copolymer, and the ionic liquid is 1-butyl-3-methylimidazole bistrifluoromethylsulfonyl imide ([ BMIN ]][NTf2])。
In the embodiment, the optical transparent adhesive with the electromagnetic shielding function is prepared by adopting a mixed solution pouring method, and ethyl acetate is used as a solvent.
The specific process is as follows: dissolving the polymer substrate in ethyl acetate to form polymer solution, and adding [ BMIN][NTf2]The ionic liquid, the ITO powder and the few-layer graphene are added into the high polymer solution and uniformly mixed, the mass ratio of the ionic liquid to the OCA high polymer base material is 2:1, the ITO powder accounts for 2.5 wt% of the OAC high polymer base material, and the few-layer graphene accounts for 0.5 wt% of the OAC high polymer base material. And coating the mixed solution on the surface of the high-transparency glass, and heating and baking to completely volatilize the ethyl acetate solvent to obtain the electromagnetic shielding OCA glue with the thickness of 100 microns. The test result shows that the sheet resistance of the OCA glue is 3 x 10^4 omega/sq, and the electromagnetic shielding effectiveness at 8-12GHz is about 15 dB.
The ionic liquid does not affect the original light transmittance and adhesion of the OCA material, other materials such as a transparent conductive polymer material, a metal high-conductivity transparent material, a transparent electromagnetic shielding material and the like are transparent materials, and have high light transmittance, so that the light transmittance of the finally prepared electromagnetic shielding OCA material is not affected, but when the addition amount of the metal high-conductivity transparent material and the transparent electromagnetic shielding material of non-organic polymers (inorganic powder) is too high, the adhesion and mechanical properties of the OCA adhesive can be affected, and therefore, the proportion of the materials in the polymer base material cannot be controlled to be too high.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The optical transparent adhesive with the electromagnetic shielding function is characterized by comprising a high polymer base material for forming the optical transparent adhesive and ionic liquid dispersed in the high polymer base material.
2. The optical transparent adhesive with electromagnetic shielding function according to claim 1, wherein the organic cation of the ionic liquid is one or more of imidazole type, pyrrole type, pyridine type, morpholine type, piperidine type, quaternary ammonium type, quaternary phosphonium type and guanidine type; the anion of the ionic liquid is one or more of halogen ion, alkali ion, fluorine-containing ion, oxolate ion, amino acid radical ion, ester radical ion and halide ion.
3. The optical transparent adhesive with electromagnetic shielding function according to claim 1, wherein the polymer substrate for forming the optical transparent adhesive is one of polyacrylate, epoxy resin, polyurethane, unsaturated polyester and silicone.
4. The optical transparent adhesive with electromagnetic shielding function according to claim 1, wherein one or both of a transparent conductive polymer material and a metal highly conductive transparent material are further incorporated into the polymer substrate.
5. The optically transparent adhesive with electromagnetic shielding function according to claim 1 or 4, wherein a transparent electromagnetic shielding material is further incorporated into the polymeric base material.
6. A preparation method of an optical transparent adhesive with an electromagnetic shielding function is characterized in that an ionic liquid is dispersed into a high-molecular base material for forming the optical transparent adhesive by adopting any one of a solution pouring method, an in-situ polymerization method and a dipping swelling method.
7. The preparation method according to claim 6, wherein at least one of a transparent conductive polymer material, a metallic highly conductive transparent material, and a transparent electromagnetic shielding material is blended and dispersed in the polymer base material by a solution casting method or an in-situ polymerization method.
8. The method according to claim 7, wherein the metallic highly conductive transparent material and the transparent electromagnetic shielding material are dispersed in the form of nanoparticles in the polymer base material.
9. The preparation method according to claim 8, wherein the transparent conductive polymer material and the polymer substrate for forming the optically transparent adhesive are blended by a mixed solution casting method or an in-situ polymerization method.
10. The preparation method according to claim 9, wherein when the mixed solution casting method is adopted for mixing, the polymer substrate and the transparent conductive polymer material are mutually fused into a dispersion matrix; when the in-situ polymerization method is adopted for mixing, the molecular chains of the polymer substrate are mutually crossed or even cross-linked with the molecular chains of the transparent conductive polymer material to form a three-dimensional network structure.
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Cited By (1)
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