Reusable high shear strength electrical debonding tape and preparation method

Abstract

The present invention relates to the technical field of adhesive materials, and specifically relates to a reusable high shear strength electrical debonding tape, and a preparation method. The tape is prepared using acrylate or olefin monomers, a methoxy polyethylene glycol-containing ester, acrylic acid, salts, functional monomers, an organic solvent, and a tackifying resin. In the electrical debonding tape of the present invention, most electrolytes are bonded to a main adhesive molecular chain through chemical bonds, and some electrolytes are dissociated and complexed by the strong ether-oxygen bonds of methoxy polyethylene glycol, rather than simple physical mixing as in the prior art, thus effectively preventing large-scale precipitation of electrolytes under electrified conditions, and enabling reuse.

Description

Re-usable and high shear strength electrically conductive adhesion reduction adhesive tape and preparation method TECHNICAL FIELD

[0001] The present application relates to the technical field of adhesive materials, in particular to a re-usable and high shear strength electrically conductive adhesion reduction adhesive tape and preparation method. BACKGROUND

[0002] The existing electrically conductive adhesion reduction adhesive mainly comprises an adhesive resin, an inert organic solvent, and a salt (or an ionic liquid) physically blended.

[0003] The basic principle of electrically conductive adhesion reduction is that the molten salt alone or the electrolyte composed of the molten salt and the inert solvent moves towards the electrode under the driving of the electric field. The electrolyte near the electrode, especially the surface of the electrode, has a high solubility, and even precipitates on the surface of the electrode, which destroys the van der Waals force between the original adhesive resin and the electrode. In addition, the oxidation-reduction reaction of the electrolyte on the electrode causes the adhesion to decrease.

[0004] The electrolyte composed of the inert solvent and the salt or the ionic liquid in the prior art has good electrically conductive adhesion reduction function, but due to the low molecular weight, the plasticizing effect on the adhesive system is too strong, which can cause the bulk strength of the adhesive layer to decrease and the shear force to decrease. In addition, the functional substance is easy to precipitate after being electrified, and the reversibility is poor.

[0005] The electrolytic adhesive and double-sided adhesive tape disclosed in patent CN115895519A are prepared by physically mixing the adhesive body, the solid conductive salt, and the polar aprotic inert solvent, which has the problems of serious precipitation after electrification, pollution of the pasted object, difficulty in reusing, and large addition amount of the inert solvent and the salt (or ionic liquid), and low shear strength of the adhesive.

[0006] In addition, the patent CN116656256A of Nippon Electric Wire Co., Ltd. discloses that the electrically conductive adhesion reduction effect is good at a low applied voltage (10V) and a short time (30s), but the initial peeling force is low, only 3.35N / cm. The patent CN118043424A improves the initial peeling force to 25N / 25mm and improves the electrically conductive adhesion reduction effect in a high temperature and high humidity environment, but the shear strength and reversibility are not reported. SUMMARY

[0007] In view of the above-mentioned shortcomings of the prior art, the present application provides a re-usable and high shear strength electrically conductive adhesion reduction adhesive tape and preparation method, which can effectively solve the above-mentioned problems in the prior art.

[0008] TECHNICAL SCHEME

[0009] To achieve the above object, the present application is implemented by the following technical solutions.

[0010] The present application provides a kind of electrically conductive viscosity reducer, including acrylate or olefin monomer, methoxy polyethylene glycol-containing ester and functional monomer.

[0011] Further, it also includes organic solvent, tackifying resin, acrylic, initiator, Li or Na ion-containing aqueous solution; preferably, Li or Na ion-containing aqueous solution is lithium hydroxide or sodium hydroxide aqueous solution.

[0012] Further, the acrylate or olefin monomer includes one or more of methyl acrylate, methyl methacrylate, ethyl acrylate, butyl acrylate, isooctyl acrylate, decyl acrylate, cyclohexyl acrylate, isobornyl acrylate, acrylonitrile, styrene, vinyl acetate, polyurethane acrylate oligomer, polyester acrylate oligomer, epoxy polyacrylate oligomer, ethoxylated phenoxy acrylate, o-phenylphenoxy ethyl acrylate, 2-(p-isopropylphenyl-phenoxy)-ethyl acrylate, nonylphenol polyoxyethylene ether acrylate, ethoxylated ethylhexyl acrylate.

[0013] The methoxy polyethylene glycol-containing ester is methoxy polyethylene glycol monoacrylate; the molecular weight of polyethylene glycol in the methoxy polyethylene glycol monoacrylate is 100-2000.

[0014] The acrylic acid includes at least one or both of methacrylic acid or acrylic acid.

[0015] Further, the functional monomer is carboxyl, hydroxyl, epoxy or amine group-containing acrylic acid and ester.

[0016] Preferably, the functional monomer includes one or more of acrylic acid, hydroxypropyl acrylate, hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, glycidyl methacrylate, acrylamide.

[0017] Further, the organic solvent includes one or both of high-boiling organic solvent and low-boiling organic solvent.

[0018] High-boiling solvent refers to a solvent with a boiling point > 150℃. The high-boiling organic solvent includes one or more of propylene carbonate, ethylene carbonate, propylene carbonate, ethylene carbonate, γ-butyrolactone, dimethyl sulfone, diphenyl sulfone, sulfolane.

[0019] The low boiling point solvent refers to a solvent with a boiling point ≤ 150℃. The low boiling point organic solvent includes one or more of toluene, benzene, xylene, pentane, hexane, octane, heptane, cyclohexane, acetone, methyl butanone, methyl isobutyl ketone, methanol, ethanol, isopropyl alcohol, diethyl ether, propylene oxide, methyl acetate, ethyl acetate, propyl acetate, butyl acetate.

[0020] Further, it also includes a salt, which includes one or more of lithium tetrafluoroborate (LiBF4), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), lithium perchlorate (LiClO4), lithium hexafluoroarsenate (LiAsF6), lithium hexafluorophosphate (LiPF6), lithium trifluoromethylsulfonate (LiCF3SO3), lithium bis(trifluoromethylsulfonyl)imide (LiN(CF3SO2)2), lithium bis(oxalate)borate (LiBOB), sodium perchlorate, sodium tetrafluoroborate, sodium thiocyanate, sodium hexafluorophosphate (NaPF6), sodium bis(trifluoromethylsulfonyl)imide (NaTFSI), sodium trifluoromethylsulfonate (NaCF3SO3);

[0021] The tackifying resin includes one or more of maleic rosin, terpene resin, terpene phenol resin, hydrogenated rosin, rosin glycerin ester, C5 petroleum resin, C7 petroleum resin;

[0022] The initiator includes one or more of dodecanoyl peroxide, benzoyl peroxide, tert-butyl peroxy-2-ethylhexanoate, cumene hydroperoxide, azobisdimethylisobutyronitrile, azobisdimethylisohexyl nitrile.

[0023] Further, by weight, it includes 30-75 parts of acrylate or olefin monomer, 10-30 parts of methoxy polyethylene glycol monoacrylate, 2-20 parts of acrylic acid, 2-15 parts of high boiling point organic solvent, 2-15 parts of salt, 2-10 parts of acrylic acid and ester functional monomer, 50-100 parts of low boiling point organic solvent, 0.1-10 parts of tackifying resin, 0.1-1.5 parts of initiator, 1-5 parts of aqueous solution containing Li or Na ion.

[0024] Preferably, by weight, it includes 60-70 parts of acrylate or olefin monomer, 12-18 parts of methoxy polyethylene glycol monoacrylate, 2-8 parts of acrylic acid, 2-8 parts of high boiling point organic solvent, 2-8 parts of salt, 2-8 parts of acrylic acid and ester functional monomer, 80-100 parts of low boiling point organic solvent, 0.1-8 parts of tackifying resin, 0.1-0.5 parts of initiator, 1-5 parts of aqueous solution containing Li or Na ion. Among them, the aqueous solution containing Li or Na ion is a 40-60% concentration of lithium hydroxide or sodium hydroxide aqueous solution; preferably, the aqueous solution containing Li or Na ion is a 50% concentration of lithium hydroxide or sodium hydroxide aqueous solution.

[0025] Preferably, 65 parts of acrylate or olefin monomer, 15 parts of methoxy polyethylene glycol monoacrylate, 5 parts of acrylic acid, 5 parts of high-boiling organic solvent, 5 parts of salt, 5 parts of acrylic acid and ester functional monomer, 100 parts of low-boiling organic solvent, 5 parts of tackifying resin, 0.3 parts of initiator, 2 parts of aqueous solution containing Li or Na ions are included by weight.

[0026] A power-on tack-reducing adhesive is prepared by adding a crosslinking agent to the power-on tack-reducing liquid described above.

[0027] Further, a catalyst is also added to the power-on tack-reducing liquid.

[0028] The crosslinking agent includes one or more of diphenyl methane diisocyanate (MDI), hexamethylene diisocyanate (HDI), toluene diisocyanate (TDI), isophorone diisocyanate (IPDI), dicyclohexyl methane diisocyanate (HMDI), lysine diisocyanate (LDI), an addition product of TDI and trimethylolpropane, IPDI trimer, biuret polyisocyanate, HDI trimer, trifunctional aziridine, ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, trimethylolpropane triglycidyl ether, isophorone diamine, m-phenylenediamine, and 2-ethyl-4-methylimidazole.

[0029] The catalyst includes one or more of stannous octoate, dibutyltin dilaurate, triethylenediamine, triethylamine, N,N-dimethylbenzylamine, N,N-dimethylhexadecylamine, and N,N-dimethylbutylamine.

[0030] Preferably, 0.1-0.5 parts of crosslinking agent and 0.01-0.05 parts of catalyst are added to every 100 parts of the synthesized power-on tack-reducing liquid.

[0031] Preferably, 0.3 parts of crosslinking agent and 0.02 parts of catalyst are added to every 100 parts of the synthesized power-on tack-reducing liquid.

[0032] A power-on tack-reducing adhesive tape is prepared from the power-on tack-reducing adhesive described above; preferably, the power-on tack-reducing adhesive is coated on a release film I, dried, and then compounded with a release film II, after which the tape is wound and cured; preferably, the release films I and II are made of polyethylene (PE), polypropylene (PP), or polyethylene terephthalate (PET).

[0033] Preferably, the difference between the release forces of the release film I and the release film II is ≥5 gf / 25 mm.

[0034] A method for preparing a power-on tack-reducing adhesive tape, which includes the following steps:

[0035] S1. Synthesis of the power reduction adhesive: acrylic ester or olefin monomer, methoxy polyethylene glycol ester, acrylic acid, salt, functional monomer, organic solvent and tackifying resin are added to the reaction kettle, stirred uniformly, and nitrogen is introduced to remove oxygen in the reaction kettle and the material. Stirring and heating, when the temperature of the material in the reaction kettle rises to 50-70℃, add part of the initiator, then heat to 70-80℃ and start timing reaction, reaction for 3-6 hours, then add the remaining initiator and continue to react for 1-3 hours, cool to 35-45℃, add 50% concentration of Li or Na ion containing aqueous solution, stir for 10-30 minutes, discharge for standby;

[0036] S2. Preparation of power reduction adhesive: crosslinking agent and catalyst are added to the power reduction adhesive synthesized in step S1, stirred uniformly, and stored below 20-30℃ for standby;

[0037] S3. Preparation of power reduction adhesive tape: the prepared power reduction adhesive is coated on release film I, baked in 70-90℃ oven for 1-4 minutes, then composite release film II, and mature at 30-50℃ for 24-72 hours to obtain power reduction adhesive tape protected by double-sided release film.

[0038] Preferably, a method for preparing a power reduction adhesive tape, the preparation steps of which include:

[0039] S1: Synthesis of power reduction adhesive: 30-75 parts of ordinary acrylic ester or olefin monomer, 10-30 parts of methoxy polyethylene glycol monoacrylate, 2-20 parts of (methyl) acrylic acid, 2-15 parts of high-boiling organic solvent, 2-15 parts of salt, 2-10 parts of carboxyl, or hydroxyl, or epoxy, or amine containing acrylic acid and ester functional monomer, 50-100 parts of low-boiling organic solvent and 0.1-10 parts of tackifying resin are added to the reaction kettle, stirred uniformly, and non-oxygen inert gas is introduced to remove oxygen in the reaction kettle and the material, and a certain pressure is maintained. Stirring and heating, when the temperature of the material in the reaction kettle rises to 60℃, add 0.1-1 parts of initiator, then heat to 75-80℃ and start timing reaction, reaction for 4-5 hours, then add 0.05-0.5 parts of initiator and continue to react for 2 hours. Cool to 35-45℃, add 1-5 parts of 50% concentration of lithium hydroxide or sodium hydroxide aqueous solution, stir for 20 minutes. Discharge for standby, the viscosity of the material is 400-20000cps;

[0040] S2: Preparation of power reduction adhesive: 0.2-20 parts of crosslinking agent and 0.05-0.2 parts of catalyst are added to 100 parts of synthesized power reduction electrolyte and stirred uniformly, and stored below 25℃ for 1-6h for standby;

[0041] S3: Preparation of the power-on tack-reducing adhesive tape: the prepared power-on tack-reducing electrolyte is coated on a 5-100 μm thick release film I, and after baking in a 50-90 °C oven for 0.5-2 minutes, a 5-100 μm thick release film II is compounded, and then wound, and aged at 30-50 °C for 24-72 hours, to obtain a double-sided release film-protected power-on tack-reducing adhesive tape, the thickness of the electrolyte film is 10-200 μm, and the structure is shown in FIG. 1.

[0042] The methoxypolyethylene glycol in the present application has a salt-dissolving ability, and the polymerization into the adhesive molecular chain can have a salt-migration-promoting ability under voltage, and can avoid the defect of easy precipitation of high-boiling-point solvents. In addition, the methoxypolyethylene glycol is polymerized on the molecular chain, and will not cause a decrease in the mechanical properties of the adhesive, like the internal addition of low-molecular substances. Advantages

[0043] Compared with the known prior art, the technical scheme provided by the present application has the following advantages:

[0044] In the power-on tack-reducing adhesive of the present application, most of the electrolyte is combined with the main adhesive molecular chain by chemical bonds, and part of the electrolyte is dissociated and complexed by the ether oxygen bond in the methoxypolyethylene glycol, rather than simply physically mixed in the prior art, so that the large amount of electrolyte precipitation under power-on is effectively avoided, and the adhesive can be repeatedly used. In addition, the strength of the adhesive body is also improved, and a high shear strength is exhibited. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0046] FIG. 1 is a schematic view of the structure of the power-on tack-reducing adhesive tape of the present application.

[0047] The numbers in the figure respectively represent: 1-release film I, 2-adhesive layer, 3-release film II. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0049] The application will be further described in connection with the following examples.

[0050] (I) Preparation of adhesive tape

[0051] Example 1

[0052] Step A: Preparation of the power-reduced adhesive. 30 parts of isooctyl acrylate, 20 parts of butyl acrylate, 15 parts of methyl methacrylate, 15 parts of methoxy polyethylene glycol (600) monoacrylate, 5 parts of acrylic acid, 5 parts of propylene carbonate, 5 parts of lithium hexafluorophosphate, 5 parts of hydroxyethyl acrylate, 5 parts of rosin glyceride, and 100 parts of ethyl acetate were added to a reaction kettle, stirred uniformly, and purged with nitrogen to remove oxygen in the reaction kettle and the materials, and maintained at a certain pressure. While stirring, the temperature of the materials in the reaction kettle was raised to 60°C, 0.2 parts of dibenzoyl peroxide was added, and then the temperature was raised to 75°C to start the reaction timing. The reaction was continued for 4 hours, after which 0.1 parts of dibenzoyl peroxide was added and the reaction was continued for 2 hours. The temperature was cooled to 35-45°C, 2 parts of 50% aqueous lithium hydroxide solution was added, and stirred for 20 minutes. The material was discharged and used, and the viscosity was 4000-10000 cps.

[0053] Step B: Preparation of the power-reduced adhesive. 0.3 parts of HDI trimer and 0.02 parts of dibutyltin dilaurate were added to 100 parts of the synthesized power-reduced adhesive, and stirred uniformly. The mixture was stored at 25°C or below for later use.

[0054] Step C: Preparation of the power-reduced adhesive tape. The prepared power-reduced adhesive was coated on a 50μm-thick release film I, and then baked in an 80°C oven for 3 minutes. A 25μm-thick release film II was then laminated, and the resulting structure was aged at 40°C for 48 hours to obtain a power-reduced adhesive tape protected by double release films. The thickness of the electrolyte film was 50μm, and the structure is shown in Fig. 1.

[0055] Example 2

[0056] Step A: Synthesis of the power dissipation viscosity reducer. 20 parts of isooctyl acrylate, 30 parts of butyl acrylate, 10 parts of styrene, 20 parts of methoxypolyethylene glycol (1000) monoacrylate, 5 parts of acrylic acid, 5 parts of propylene carbonate, 5 parts of lithium hexafluorophosphate, 5 parts of hydroxyethyl methacrylate, 5 parts of terpene resin, and 100 parts of ethyl acetate were added to a reaction kettle, stirred uniformly, and purged with nitrogen to remove oxygen in the reaction kettle and the materials, and a certain pressure was maintained. While stirring, the temperature was raised. When the temperature of the materials in the reaction kettle reached 60°C, 0.2 parts of dibenzoyl peroxide was added, and then the temperature was raised to 75°C to start timing reaction. The reaction was carried out for 4 hours, after which 0.1 parts of dibenzoyl peroxide was added and the reaction was continued for 2 hours. The temperature was cooled to 35-45°C, and the material was discharged for standby use. The viscosity of the material was 4000-10000 cps;

[0057] Step B: Preparation of the power dissipation adhesive. 0.4 parts of trifunctional aziridine was added to 100 parts of the synthesized power dissipation viscosity reducer, and the mixture was stored below 25°C for standby use.

[0058] Step C: Same as Step C of Example 1.

[0059] Example 3:

[0060] Step A: Same as Step A of Example 1, using 5 parts of glycidyl methacrylate instead of 5 parts of hydroxyethyl acrylate.

[0061] Step B: Preparation of the power dissipation adhesive. 0.3 parts of isophorone diamine was added to 100 parts of the synthesized power dissipation viscosity reducer, and the mixture was stirred uniformly and stored below 25°C for standby use.

[0062] Step C: Same as Step C of Example 1.

[0063] Example 4:

[0064] Step A: Same as Step A of Example 1, using 5 parts of sodium hexafluorophosphate instead of 5 parts of lithium hexafluorophosphate.

[0065] Step B: Same as Step B of Example 1.

[0066] Step C: Same as Step C of Example 1.

[0067] Comparative Example 1:

[0068] 100 parts of Shimei Chemical PS-8281E2 solvent type acrylate pressure-sensitive adhesive (solid content 49%) were taken, 20 parts of lithium hexafluorophosphate, 20 parts of propylene carbonate, 10 parts of Shimei Chemical PX2300A curing agent, 10 parts of terpene resin, 50 parts of ethyl acetate, and 50 parts of toluene were added, and the mixture was stirred and dispersed uniformly. Then, the power dissipation adhesive tape with a thickness of 50 μm for electrolyte membrane was prepared according to Step C in Example 1.

[0069] Comparative Example 2:

[0070] Step A: Same as Step A of Example 1, but without adding 15 parts of methoxypolyethylene glycol (600) monoacrylate;

[0071] Step B: Same as Step B of Example 1;

[0072] Step C: Same as Step C of Example 1.

[0073] Comparative Example 3:

[0074] Step A: Same as Step A of Example 1, but without adding 5 parts of hydroxyethyl acrylate;

[0075] Step B: Same as Step B of Example 1, but without adding 0.3 parts of HDI trimer and 0.02 parts of dibutyl tin dilaurate;

[0076] Step C: Same as Step C of Example 1.

[0077] Comparative Example 4:

[0078] Step A: Same as Step A of Example 1, but without adding 5 parts of acrylic acid;

[0079] Step B: Same as Step B of Example 1;

[0080] Step C: Same as Step C of Example 1.

[0081] Comparative Example 5:

[0082] Step A: Same as Step A of Example 1, but without adding 5 parts of propylene carbonate;

[0083] Step B: Same as Step B of Example 1;

[0084] Step C: Same as Step C of Example 1.

[0085] (B) Performance Test

[0086] The general-purpose adhesive tapes obtained in Example 1, 2, 3, 4 and Comparative Examples 1, 2, 3, 4, 5 were subjected to the following performance tests:

[0087] (1) Surface resistance test (GB / T 1410-2006): The obtained adhesive tape was torn off one side of the release film, and the surface resistance of the corresponding adhesive surface was tested.

[0088] (2) 180° peel force test (GB / T 2792-2014): ① Pre-energization test. After tearing off one side of the release film of the prepared adhesive tape, it was attached to the steel plate, and pressed 3 times back and forth with a 2kg rubber roller. After 24h at 23℃, the test was recorded as F1. ② Post-energization peel force test. After tearing off one side of the release film of the adhesive tape, it was attached to the aluminum foil, and pressed 3 times back and forth with a 2kg rubber roller. Then the other side of the release film of the adhesive tape was torn off and attached to the steel plate, and pressed 3 times back and forth with a 2kg rubber roller. After 24h at 23℃, the direct current source was connected to the aluminum foil with the positive electrode and to the steel plate with the negative electrode. The attached sample was subjected to 30V*30s energization treatment, and then the 180° peel force was tested and recorded as F2.

[0089] (3) Shear strength test (GB / T 7124-2008): The electrolytic adhesive tape with the release film torn off was attached to the aluminum plate substrate, and the other release film was torn off and attached to another aluminum sheet with an overlapping area of 12.5*25mm. After 20min, the shear force was tested.

[0090] (4) Peel force reversibility test: The sample subjected to the post-energization 180° peel force test was reattached to a new steel plate, and pressed 3 times back and forth with a 2kg rubber roller. After 24h at 23℃, the peel force was tested and recorded as the reattachment peel force F3. The recovery ratio W = F3 / F1*100%.

[0091] (5) Steel plate surface residue test after energization peeling: The contamination condition of the steel plate surface after the peel force test was observed, and whether there was oil stain or residue was determined.

[0092] The comparative data in Table 1 can be obtained by testing the examples and comparative examples. As shown in Table 1, the adhesive tape prepared in Example 1 has a higher shear strength, and its peel force recovery ability after energization is also better. The peel force recovery ability of the tack-reducing adhesive tapes in the comparative examples is relatively poor, especially the tack-reducing adhesive tapes prepared from the reaction raw materials lacking methoxypolyethylene glycol (600) monopropenoate or functional monomer and crosslinking agent, and the peel force recovery ratio of which is less than 70%.

[0093] In addition, the lithium salt is used in the energization tack-reducing solution, such as Examples 1-3, and the peel force recovery ratio of the energization tack-reducing adhesive tape prepared therefrom after reattachment after energization is greater than 95%. The sodium salt is used in the energization tack-reducing solution, such as Example 4, and the peel force recovery ratio of the energization tack-reducing adhesive tape prepared therefrom after reattachment after energization can also reach 84%.

[0094] The electrically conductive viscosity-reducing adhesive of the embodiment of the present application has most electrolytes combined with the molecular chain of the main adhesive by chemical bonds, and some electrolytes are dissociated and complexed by the ether oxygen bond in the methoxyl polyethylene glycol, instead of simple physical mixing in the prior art, so that the large amount of electrolyte precipitation under the electrically conductive condition is effectively avoided, and the adhesive can be repeatedly used. In addition, the strength of the adhesive body is also improved, and high shear strength is exhibited.

[0095] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrically conductive tack-reducing fluid, characterized in that, The monomers include acrylate or olefin monomers, methoxy polyethylene glycol-containing esters, and functional monomers.

2. A viscosity-reducing energizing fluid according to claim 1, wherein The organic solvent, the tackifying resin, the acrylate, the initiator, and the aqueous solution containing Li or Na ions are also included.

3. A viscosity-reducing energizing fluid according to claim 2, wherein The acrylate or olefin monomers include one or more of methyl acrylate, methyl methacrylate, ethyl acrylate, butyl acrylate, isooctyl acrylate, decyl acrylate, cyclohexyl acrylate, isobornyl acrylate, acrylonitrile, styrene, vinyl acetate, polyurethane acrylate oligomer, polyester acrylate oligomer, epoxy polyacrylate oligomer, ethoxylated phenoxy acrylate, o-phenylphenoxy ethyl acrylate, 2-(p-isopropylphenyl-phenoxy)-ethyl acrylate, nonylphenol polyoxyethylene ether acrylate, and ethoxylated ethylhexyl acrylate. The methoxy polyethylene glycol-containing ester is methoxy polyethylene glycol monoacrylate, and the molecular weight of the polyethylene glycol in the methoxy polyethylene glycol monoacrylate is 100-2000. The acrylate includes at least one or both of methacrylic acid and acrylic acid.

4. A viscosity-reducing energizing fluid according to claim 1, wherein The functional monomer is an acrylate containing a carboxyl group, a hydroxyl group, an epoxy group, or an amine group. The functional monomer includes one or more of acrylic acid, hydroxypropyl acrylate, hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, glycidyl methacrylate, and acrylamide.

5. A viscosity-reducing energizing fluid according to claim 2, wherein The organic solvent includes one or both of a high-boiling organic solvent and a low-boiling organic solvent. The high-boiling organic solvent includes one or more of propylene carbonate, ethylene carbonate, propylene glycol carbonate, vinylene carbonate, γ-butyrolactone, dimethyl sulfone, diphenyl sulfone, and sulfolane. The low-boiling organic solvent includes one or more of toluene, benzene, xylene, pentane, hexane, octane, heptane, cyclohexane, acetone, methyl butanone, methyl isobutyl ketone, methanol, ethanol, isopropyl alcohol, diethyl ether, propylene oxide, methyl acetate, ethyl acetate, propyl acetate, and butyl acetate.

6. A viscosity-reducing energizing fluid according to claim 5, wherein The salt includes one or more of lithium tetrafluoroborate (LiBF4), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), lithium perchlorate (LiClO4), lithium hexafluoroarsenate (LiAsF6), lithium hexafluorophosphate (LiPF6), lithium trifluoromethylsulfonate (LiCF3SO3), lithium bis(trifluoromethylsulfonyl)imide (LiN(CF3SO2)2), lithium bis(oxalato)borate (LiBOB), sodium perchlorate, sodium tetrafluoroborate, sodium thiocyanate, sodium hexafluorophosphate (NaPF6), sodium bis(trifluoromethylsulfonyl)imide (NaTFSI), and sodium trifluoromethylsulfonate (NaCF3SO3). The tackifying resin includes one or more of maleic rosin, terpene resin, terpene phenol resin, hydrogenated rosin, rosin glycerin ester, C5 petroleum resin, and C7 petroleum resin. The initiator includes one or more of dodecanoyl peroxide, benzoyl peroxide, tert-butyl tert-amyl peroxide, cumene hydroperoxide, azobis isobutyronitrile, and azobis isohexyl nitrile.

7. A viscosity-reducing energizing fluid according to claim 6, wherein By weight, including 30-75 parts of acrylic or olefin monomer, 10-30 parts of methoxy polyethylene glycol monoacrylate, 2-20 parts of acrylic acid, 2-15 parts of high boiling point organic solvent, 2-15 parts of salt, 2-10 parts of acrylic acid and ester functional monomer, 50-100 parts of low boiling point organic solvent, 0.1-10 parts of tackifying resin, 0.1-1.5 parts of initiator, 1-5 parts of aqueous solution containing Li or Na ion.

8. An electrically conductive adhesion-reducing adhesive characterized by, It is prepared by adding a crosslinking agent to the electrically conductive tack-reducing fluid of any one of claims 1-7.

9. A live-line adhesive according to claim 8, wherein Also includes adding a catalyst to the electrically conductive tack-reducing fluid; The crosslinking agent includes one or more of diphenyl methane diisocyanate (MDI), hexamethylene diisocyanate (HDI), toluene diisocyanate (TDI), isophorone diisocyanate (IPDI), dicyclohexyl methane diisocyanate (HMDI), lysine diisocyanate (LDI), TDI and trimethylolpropane adduct, IPDI trimer, biuret polyisocyanate, HDI trimer, trifunctional aziridine, ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, trimethylolpropane triglycidyl ether, isophorone diamine, m-phenylenediamine, 2-ethyl-4-methylimidazole; The catalyst includes one or more of stannous octoate, dibutyltin dilaurate, triethylenediamine, triethylamine, N,N-dimethylbenzylamine, N,N-dimethylhexadecylamine, N,N-dimethylbutylamine.

10. An electrically conductive tack-reducing adhesive tape prepared from the electrically conductive tack-reducing adhesive of claim 9; preferably, the electrically conductive tack-reducing adhesive is coated on a release film I, dried, then laminated with a release film II, and wound up, and the curing is completed; preferably, the release films I and II are made of polyethylene (PE), polypropylene (PP), or polyethylene terephthalate (PET).

11. A method of making an electrically conductive adhesive tape according to claim 10, wherein The preparation steps include: S1. Synthesis of electrically conductive tack-reducing fluid: acrylic or olefin monomer, methoxy polyethylene glycol ester, acrylic acid, salt, functional monomer, organic solvent, and tackifying resin are added to a reaction kettle, stirred uniformly, nitrogen is introduced to remove oxygen in the reaction kettle and the material, and the material in the reaction kettle is heated while stirring, when the temperature of the material in the reaction kettle rises to 50-70℃, part of the initiator is added, then the temperature is raised to 70-80℃, and the reaction is started, the reaction is carried out for 3-6 hours, then the remaining initiator is added and the reaction is continued for 1-3 hours, and then the temperature is cooled to 35-45℃, 50% concentration aqueous solution containing Li or Na ion is added, stirred for 10-30 minutes, and discharged for standby; S2. Preparation of electrically conductive tack-reducing adhesive: crosslinking agent and catalyst are added to the electrically conductive tack-reducing fluid synthesized in step S1, stirred uniformly, and stored below 20-30℃ for standby; S3. Preparation of electrically conductive tack-reducing adhesive tape: the prepared electrically conductive tack-reducing adhesive is coated on a release film I, dried in a 70-90℃ oven for 1-4 minutes, then laminated with a release film II, and cured at 30-50℃ for 24-72 hours, to obtain an electrically conductive tack-reducing adhesive tape protected by double-sided release film.

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