Multi-mode viscosity-reducing adhesive tape and preparation method thereof

Abstract

The invention provides a multimode viscosity-reducing adhesive tape which comprises an antistatic layer, a base material layer, a UV viscosity-reducing adhesive layer and a release film layer which are sequentially arranged in a stacked mode, and the UV viscosity-reducing adhesive layer is prepared from, by weight, 40-80 parts of modified acrylate, 2-5 parts of curing agent, 0.5-3 parts of photoinitiator, 5-10 parts of amino resin, 4-8 parts of water absorption dispersing fiber and 30-60 parts of solvent; the thickness of the antistatic layer is 10-20 [mu] m, the thickness of the base material layer is 80-120 [mu] m, the thickness of the UV viscosity-reducing adhesive layer is 25-35 [mu] m, and the thickness of the release film layer is 25-35 [mu] m; effective visbreaking of the adhesive tape is achieved through various modes of water absorption visbreaking, UV illumination visbreaking and the like. The adhesive has high initial adhesive force, can be adhered to a protected material without falling off, has low adhesive force after UV light irradiation and moisture absorption, is easy to peel off from the protected material, and is not easy to leave residual adhesive.

Description

Technical Field

[0001] The invention belongs to the technical field of viscosity-reducing tapes, and specifically relates to a multi-mode viscosity-reducing tape and a preparation method thereof. Background Art

[0002] Anti-stick tape (also called "anti-stick tape" or "low-stick tape") is a tape with controlled stickiness. The main purpose of this tape is to be easily removed without damaging the bonded surface. It was originally designed to solve the problem that ordinary tapes are too sticky. The purpose of anti-stick tape is to solve the problem that ordinary tapes are too sticky and difficult to remove. It can not only easily adhere to various surfaces, but also improve work efficiency and quality.

[0003] Adhesives include common pressure-sensitive adhesives, UV viscosity-reducing adhesives, cold viscosity-reducing adhesives, and hot viscosity-reducing adhesives. Grinding tapes made from common pressure-sensitive adhesives have high viscosity before and after grinding. Removing the tape after grinding can easily cause problems such as wafer damage and residual adhesive due to high viscosity. Grinding tapes made from cold viscosity-reducing adhesives require cooling equipment to reduce the viscosity of the tape after grinding, which has high equipment costs and unstable processes.

[0004] UV adhesive tape is often used in the prior art. After being exposed to ultraviolet light, the adhesive film viscosity is reduced, easy to peel off, and it is not easy to leave residual adhesive on the surface of the battery shell. However, the peel strength of the UV adhesive tape currently on the market drops directly to close to 0gf after being exposed to ultraviolet light, and the peel strength drops rapidly. Although the purpose of complete adhesive reduction is achieved, the extremely low peeling force after adhesive reduction will cause the tape to easily detach from the adhered object, making it difficult to collect in a centralized manner during the process of being sent to the next process flow, and it is also easy to cause the adhered object to be damaged during transportation due to the lack of outer layer protection. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-mode anti-sticking tape and a preparation method thereof, which can realize effective anti-sticking of the tape by sequentially arranging an antistatic layer, a substrate layer, a UV anti-sticking adhesive layer and a release film layer, and by various methods such as water absorption anti-sticking and UV light anti-sticking; the tape has high initial adhesion and can adhere to the protected material without falling off, and after UV light irradiation and water absorption, the adhesive force is low, and the tape is easy to be peeled off from the protected material without leaving residual adhesive.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A multi-mode anti-viscosity tape comprises an antistatic layer, a substrate layer, a UV anti-viscosity adhesive layer and a release film layer which are stacked in sequence, wherein the UV anti-viscosity adhesive layer comprises, by weight, 40-80 parts of modified acrylate, 2-5 parts of curing agent, 0.5-3 parts of photoinitiator, 5-10 parts of amino resin, 4-8 parts of water-absorbing and dispersing fiber and 30-60 parts of solvent.

[0008] Preferably, the antistatic layer has a thickness of 10-20 μm, the substrate layer has a thickness of 80-120 μm, the UV viscosity-reducing adhesive layer has a thickness of 25-35 μm, and the release film layer has a thickness of 25-35 μm.

[0009] Preferably, the antistatic layer is an ionic liquid antistatic agent; the substrate layer is any one of PET, PMMA, and PP; the release film layer is a single-sided silicon release film layer; and the ionic liquid antistatic agent is one of sodium polystyrene sulfonate or hexadecyltrimethylammonium bromide.

[0010] Preferably, the release force of the single-sided silicon release film layer is 20-40g / 25mm, and the antistatic value of the back side is 7×10 9 -10×10 10 Ω / sq, the corona value range is 3-6kw.

[0011] Preferably, the modified acrylic resin in the UV viscosity-reducing adhesive layer is a mixture of vinyl acrylate, methyl methacrylate and glycidyl methacrylate in a mass ratio of 1:0.6-0.8:1.2-1.3; the amino resin is one of urea-formaldehyde resin or aniline formaldehyde resin; the curing agent is one of toluene diisocyanate or hexamethylene diisocyanate; the photoinitiator is one of 1-hydroxycyclohexyl phenyl ketone or benzoin dimethyl ether; the solvent is one of ethyl acetate, butyl acetate or butanone.

[0012] Preferably, the water-absorbing and dispersing fiber is chitosan gel-modified PET fiber.

[0013] A method for preparing a multi-mode adhesive tape comprises the following steps:

[0014] S1: preparing modified acrylic acid, amino resin and water-absorbing dispersed fiber;

[0015] S2: Take 40-80 parts of modified acrylate, 2-5 parts of curing agent, 0.5-3 parts of photoinitiator, 5-10 parts of amino resin, 4-8 parts of water-absorbing and dispersing fiber and 30-60 parts of solvent, stir at a temperature of 150-170°C for 1-3h to obtain a UV viscosity-reducing adhesive layer;

[0016] S3: sequentially laminating, drying and aging the antistatic layer, the substrate layer, the UV anti-viscosity adhesive layer and the release film layer to obtain the multi-mode anti-viscosity adhesive tape.

[0017] Preferably, the preparation process of the modified acrylate in step S1 is: vinyl acrylate, methyl methacrylate and glycidyl methacrylate are taken in a mass ratio of 1:0.6-0.8:1.2-1.3, and stirred at a temperature of 170-180° C. for 45-65 minutes.

[0018] Preferably, the preparation process of the water-absorbing and dispersible fiber in step S1 is: 1-3 parts of acrylamide, 3-6 parts of acrylic acid and 20-30 parts of deionized water are mixed and stirred evenly, the pH of the system is adjusted to 7.5 with sodium hydroxide, and 2-4 parts of chitosan, 0.3-0.5 parts of potassium persulfate and 0.1-0.3 parts of a cross-linking agent are added continuously, and stirred at a temperature of 60-80°C for 2-4h to obtain product A; the nozzle airflow is set to 3-5m / s, the nozzle temperature is set to 45-65°C, and the product A is hot-sprayed and adhered to the surface of the PET fiber to form a water-absorbing and dispersible fiber.

[0019] Preferably, the drying condition in step S3 is drying at a temperature of 80-90° C. for 40-60 min; and the aging condition is aging at a temperature of 75-85° C. for 10-16 h.

[0020] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0021] The present invention obtains modified acrylic acid from a mixture of vinyl acrylate, methyl methacrylate and glycidyl methacrylate; thermally sprays product A obtained from acrylamide, acrylic acid, deionized water, chitosan, potassium persulfate and a crosslinking agent onto the surface of PET fibers to form water-absorbing and dispersing fibers; modified acrylic acid and water-absorbing and dispersing fibers are added to the components for preparing a conventional UV viscosity-reducing adhesive layer, and when the tape contacts moisture, the components in the adhesive react with water, resulting in reduced viscosity; at the same time, a photochemical reaction occurs under ultraviolet light, resulting in changes in the molecular structure, thereby reducing viscosity. The synergistic effect of water absorption and UV light curing is achieved together to reduce viscosity; a suitable specific release film layer is selected, and an antistatic layer is added, so that the prepared viscosity-reducing tape has excellent comprehensive performance. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] A multi-mode anti-viscosity tape of the present embodiment includes an antistatic layer, a substrate layer, a UV anti-viscosity adhesive layer and a release film layer which are stacked in sequence, wherein the UV anti-viscosity adhesive layer includes, by weight, 40-80 parts of modified acrylate, 2-5 parts of curing agent, 0.5-3 parts of photoinitiator, 5-10 parts of amino resin, 4-8 parts of water-absorbing and dispersing fiber and 30-60 parts of solvent.

[0024] In this embodiment, the thickness of the antistatic layer is 10-20 μm, the thickness of the substrate layer is 80-120 μm, the thickness of the UV viscosity-reducing adhesive layer is 25-35 μm, and the thickness of the release film layer is 25-35 μm.

[0025] The antistatic layer of this embodiment is an ionic liquid antistatic agent; the substrate layer is any one of PET, PMMA, and PP; the release film layer is a single-sided silicon release film layer; the ionic liquid antistatic agent is one of sodium polystyrene sulfonate or hexadecyltrimethylammonium bromide.

[0026] The release force of the single-sided silicon release film layer of this embodiment is 20-40g / 25mm, and the antistatic value of the back side is 7×10 9 -10×10 10 Ω / sq, the corona value range is 3-6kw.

[0027] The modified acrylic resin in the UV viscosity-reducing adhesive layer of this embodiment is a mixture of vinyl acrylate, methyl methacrylate and glycidyl methacrylate in a mass ratio of 1:0.6-0.8:1.2-1.3; the amino resin is one of urea-formaldehyde resin or aniline formaldehyde resin; the curing agent is one of toluene diisocyanate or hexamethylene diisocyanate; the photoinitiator is one of 1-hydroxycyclohexyl phenyl ketone or benzoin dimethyl ether; the solvent is one of ethyl acetate, butyl acetate or butanone.

[0028] The water-absorbing and dispersing fiber of this embodiment is chitosan gel-modified PET fiber.

[0029] A method for preparing a multi-mode adhesive tape according to this embodiment includes the following steps:

[0030] S1: preparing modified acrylic acid, amino resin and water-absorbing dispersed fiber;

[0031] S2: Take 40-80 parts of modified acrylate, 2-5 parts of curing agent, 0.5-3 parts of photoinitiator, 5-10 parts of amino resin, 4-8 parts of water-absorbing and dispersing fiber and 30-60 parts of solvent, stir at a temperature of 150-170°C for 1-3h to obtain a UV viscosity-reducing adhesive layer;

[0032] S3: sequentially laminating, drying and aging the antistatic layer, the substrate layer, the UV anti-viscosity adhesive layer and the release film layer to obtain the multi-mode anti-viscosity adhesive tape.

[0033] The preparation process of the modified acrylate in step S1 of this embodiment is as follows: vinyl acrylate, methyl methacrylate and glycidyl methacrylate are taken in a mass ratio of 1:0.6-0.8:1.2-1.3, and stirred at a temperature of 170-180° C. for 45-65 minutes.

[0034] The preparation process of the water-absorbing and dispersible fiber in step S1 of this embodiment is as follows: 1-3 parts of acrylamide, 3-6 parts of acrylic acid and 20-30 parts of deionized water are mixed and stirred evenly, the pH of the system is adjusted to 7.5 with sodium hydroxide, 2-4 parts of chitosan, 0.3-0.5 parts of potassium persulfate and 0.1-0.3 parts of a cross-linking agent are added continuously, and the mixture is stirred at a temperature of 60-80°C for 2-4 hours to obtain product A; the nozzle airflow is set to 3-5m / s, the nozzle temperature is set to 45-65°C, and product A is thermally sprayed onto the surface of the PET fiber to form water-absorbing and dispersible fibers.

[0035] In step S3 of this embodiment, the drying condition is drying at a temperature of 80-90° C. for 40-60 min; and the aging condition is aging at a temperature of 75-85° C. for 10-16 h.

[0036] The raw materials used in the present invention are as follows:

[0037] PET (from Shanghai Huihang New Materials Co., Ltd., product number PET 545NC010); PMMA (Hangzhou Yuhao Chemical Technology Co., Ltd., product catalog 1899); PP (Wuhan Costan Biotechnology Co., Ltd., product number CS-10374); sodium polystyrene sulfonate (Hubei Shishun Biotechnology Co., Ltd., product number SS1599); hexadecyltrimethylammonium bromide (Shanghai Yuanye Biotechnology Co., Ltd., product number S15001); single-sided silicon release film (Jiangsu Pingyu New Materials Co., Ltd.); vinyl acrylate (Jinjinle Chemical Co., Ltd., product catalog 5214); methyl methacrylate (Shandong Jinyueyuan New Materials Co., Ltd., product catalog 689); methyl Glycidyl acrylate (Shanghai Yuanye Biotechnology Co., Ltd., product number S60373); urea-formaldehyde resin (Shanghai Yuanye Biotechnology Co., Ltd., product number T25354); aniline formaldehyde resin (Hubei Xinhongli Chemical Co., Ltd., product number XHL8106); hexamethylene diisocyanate (Shanghai Fannaxu Import and Export Co., Ltd., product catalog 52); 1-hydroxycyclohexyl phenyl ketone (Shanghai Yuanye Biotechnology Co., Ltd., product number S52049); benzoin dimethyl ether (Shanghai Yuanye Biotechnology Co., Ltd., product number S45044); chitosan (Shanghai Yuanye Biotechnology Co., Ltd., product number S11064).

[0038] Example 1

[0039] This embodiment provides a method for preparing a multi-mode adhesive tape, comprising the following steps:

[0040] S1: vinyl acrylate, methyl methacrylate and glycidyl methacrylate were taken in a mass ratio of 1:0.6:1.2, and stirred at a temperature of 170°C and a speed of 500 r / min for 45 min to obtain modified acrylate;

[0041] 1 g of acrylamide, 3 g of acrylic acid and 20 g of deionized water were mixed and stirred, and the pH of the system was adjusted to 7.5 with sodium hydroxide, and 2 g of chitosan, 0.3 g of potassium persulfate and 0.1 g of glutaraldehyde were added, and stirred at a temperature of 60°C and a speed of 500 r / min for 2 h to obtain product A; the nozzle airflow was set to 3 m / s and the nozzle temperature was set to 45°C, and product A was thermally sprayed onto the surface of PET fiber to form water-absorbing dispersed fibers;

[0042] S2: Take 40g of modified acrylic resin, 2g of curing agent, 0.5g of photoinitiator, 5g of amino resin, 4g of water-absorbing dispersed fiber and 30g of solvent, wherein the amino resin is urea-formaldehyde resin, the curing agent is toluene diisocyanate, the photoinitiator is 1-hydroxycyclohexyl phenyl ketone, and the solvent is ethyl acetate; stir at a temperature of 150°C and a speed of 400r / min for 1h to obtain a UV viscosity-reducing adhesive layer;

[0043] S3: The antistatic layer, the substrate layer, the UV anti-viscosity adhesive layer and the release film layer are laminated in sequence, wherein the thickness of the antistatic layer is 10 μm, the thickness of the substrate layer is 80 μm, the thickness of the UV anti-viscosity adhesive layer is 25 μm, and the thickness of the release film layer is 25 μm; then, the mixture is dried at 80°C for 40 minutes; and then, the mixture is aged at 75°C for 10 hours to obtain the multi-mode anti-viscosity tape.

[0044] Example 2

[0045] This embodiment provides a method for preparing a multi-mode adhesive tape, comprising the following steps:

[0046] S1: vinyl acrylate, methyl methacrylate and glycidyl methacrylate were taken in a mass ratio of 1:0.8:1.3, and stirred at a temperature of 180°C and a speed of 600 r / min for 65 min to obtain modified acrylate;

[0047] 3g acrylamide, 6g acrylic acid and 30g deionized water were mixed and stirred, the pH of the system was adjusted to 7.5 with sodium hydroxide, 4g chitosan, 0.5g potassium persulfate and 0.3g glutaraldehyde were added, and the mixture was stirred at a temperature of 80°C and a speed of 500r / min for 4h to obtain product A; the nozzle airflow was set to 5m / s and the nozzle temperature was set to 65°C, and product A was thermally sprayed onto the surface of PET fiber to form water-absorbing dispersed fibers;

[0048] S2: Take 80g of modified acrylic resin, 5g of curing agent, 3g of photoinitiator, 10g of amino resin, 8g of water-absorbing dispersed fiber and 60g of solvent, wherein the amino resin is aniline formaldehyde resin, the curing agent is hexamethylene diisocyanate, the photoinitiator is benzoin dimethyl ether, and the solvent is butyl acetate; stir at a temperature of 170°C and a speed of 600r / min for 3h to obtain a UV viscosity-reducing adhesive layer;

[0049] S3: The antistatic layer, the substrate layer, the UV anti-viscosity adhesive layer and the release film layer are laminated in sequence, the thickness of the antistatic layer is 20 μm, the thickness of the substrate layer is 120 μm, the thickness of the UV anti-viscosity adhesive layer is 35 μm, and the thickness of the release film layer is 35 μm; then dried at a temperature of 90°C for 60 minutes; and then aged at a temperature of 85°C for 16 hours to obtain the multi-mode anti-viscosity tape.

[0050] Example 3

[0051] This embodiment provides a method for preparing a multi-mode adhesive tape, comprising the following steps:

[0052] S1: vinyl acrylate, methyl methacrylate and glycidyl methacrylate were taken in a mass ratio of 1:0.7:1.25, and stirred at a temperature of 175°C and a speed of 500 r / min for 60 min to obtain modified acrylate;

[0053] 2g acrylamide, 4g acrylic acid and 26g deionized water were mixed and stirred, the pH of the system was adjusted to 7.5 with sodium hydroxide, 3g chitosan, 0.4g potassium persulfate and 0.2g cross-linking agent were added, and the mixture was stirred at a temperature of 75°C and a speed of 500r / min for 3.5h to obtain product A; the nozzle airflow was set to 4m / s and the nozzle temperature was set to 55°C, and product A was thermally sprayed onto the surface of PET fiber to form water-absorbing dispersed fibers;

[0054] S2: Take 70g of modified acrylic resin, 4g of curing agent, 2g of photoinitiator, 7g of amino resin, 6g of water-absorbing dispersed fiber and 45g of solvent, wherein the amino resin is urea-formaldehyde resin, the curing agent is toluene diisocyanate, the photoinitiator is benzoin dimethyl ether, and the solvent is butanone; stir at a temperature of 165°C and a speed of 500r / min for 2h to obtain a UV viscosity-reducing adhesive layer;

[0055] S3: The antistatic layer, the substrate layer, the UV anti-viscosity adhesive layer and the release film layer are laminated in sequence, the thickness of the antistatic layer is 15 μm, the thickness of the substrate layer is 110 μm, the thickness of the UV anti-viscosity adhesive layer is 30 μm, and the thickness of the release film layer is 30 μm; then dried at a temperature of 85°C for 50 minutes; and then aged at a temperature of 80°C for 14 hours to obtain the multi-mode anti-viscosity tape.

[0056] Comparative Example 1

[0057] The difference between this comparative example and Example 1 is that water-absorbing and dispersing fibers are not prepared in step S1, that is, water-absorbing and dispersing fibers are not contained in step S2, and the other steps are the same.

[0058] Comparative Example 2

[0059] The difference between this comparative example and Example 1 is that modified acrylate is not prepared in step S1, that is, modified acrylate is not contained in step S2, and the other steps are the same.

[0060] Comparative Example 3

[0061] The difference between this comparative example and Example 1 is that amino resin is not added in step S2, and the other steps are the same.

[0062] Comparative Example 4

[0063] The difference between this comparative example and Example 1 is that no antistatic layer is added in step S3, and the other steps are the same.

[0064] Performance Test:

[0065] 180° peeling force test. The test was conducted using a peeling force tester. An aluminum plate for peeling force was selected. A tape strip with a length of 300 mm and a width of 25 mm was scratched using a scratching machine (protected from light). The aluminum plate for peeling force was wiped with ethanol three times before the test. The release film layer of the test strips of the above embodiments and comparative examples was peeled off / scratched, and the strips were attached to the wiped aluminum plate for peeling force. After being rolled twice with a 2kg roller, the test strips were placed in a controlled environment room (23°C / 50% relative humidity) for 20 minutes before the test. The peeling speed was set to 300 mm / min.

[0066] Butt shear strength test. A three-series aluminum plate (60mm long and 25mm wide) was selected. Use a sample scribing machine to draw a 30mm long and 25mm wide tape sample strip (stored in a dark place). Before the test, wipe the two aluminum plates used for testing butt shear strength with ethanol three times, peel off the release film layer of the sample strip, splice the two aluminum plates together, and connect and fix them with the sample strips to be tested in the above embodiments and comparative examples. The bonding area of ​​one aluminum plate is 25*5=125mm, and the bonding area of ​​the other aluminum plate is 25*25=625mm. After the bonded sample is rolled twice with a 2kg pressure roller, it is placed in a controlled environment room (23℃ / 50% relative humidity) for 20 minutes for testing. The tensile speed of the universal testing machine is 5mm / min. The results are shown in the table below:

[0067] Table 1 Performance test results

[0068]

[0069]

[0070] From the above performance test results, it can be seen that the multi-mode viscosity-reducing tapes prepared in Examples 1-3 have good viscosity-reducing performance under the synergistic effect of water absorption and UV light irradiation; in particular, the comprehensive performance of Example 3 is the most outstanding. However, since Comparative Examples 1-4 do not adopt the necessary technical solutions, their corresponding performance tests are significantly worse than those of the Examples. The above experimental results further prove the importance of the technical solutions defined in the present invention for its technical effects.

[0071] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-mode adhesive tape, characterized in that: The invention comprises an antistatic layer, a substrate layer, a UV anti-viscosity adhesive layer and a release film layer which are stacked in sequence, wherein the UV anti-viscosity adhesive layer comprises, by weight, 40-80 parts of modified acrylate, 2-5 parts of curing agent, 0.5-3 parts of photoinitiator, 5-10 parts of amino resin, 4-8 parts of water-absorbing and dispersing fiber and 30-60 parts of solvent.

2. A multi-mode adhesive tape according to claim 1, characterized in that: The thickness of the antistatic layer is 10-20 μm, the thickness of the substrate layer is 80-120 μm, the thickness of the UV viscosity-reducing adhesive layer is 25-35 μm, and the thickness of the release film layer is 25-35 μm.

3. The multi-mode adhesive tape according to claim 1, characterized in that: The antistatic layer is an ionic liquid antistatic agent; the substrate layer is any one of PET, PMMA, and PP; the release film layer is a single-sided silicon release film layer; and the ionic liquid antistatic agent is one of sodium polystyrene sulfonate or hexadecyltrimethylammonium bromide.

4. A multi-mode adhesive tape according to claim 3, characterized in that: The release force of the single-sided silicon release film layer is 20-40g / 25mm, and the antistatic value of the back side is 7×10 9 -10×10 10 Ω / sq, the corona value range is 3-6kw.

5. The multi-mode adhesive tape according to claim 1, characterized in that: The modified acrylic resin in the UV viscosity-reducing adhesive layer is a mixture of vinyl acrylate, methyl methacrylate and glycidyl methacrylate in a mass ratio of 1:0.6-0.8:1.2-1.3; the amino resin is one of urea-formaldehyde resin or aniline formaldehyde resin; the curing agent is one of toluene diisocyanate or hexamethylene diisocyanate; the photoinitiator is one of 1-hydroxycyclohexyl phenyl ketone or benzoin dimethyl ether; and the solvent is one of ethyl acetate, butyl acetate or butanone.

6. The multi-mode adhesive tape according to claim 1, characterized in that: The water-absorbing and dispersing fiber is chitosan gel-modified PET fiber.

7. A method for preparing a multi-mode adhesive tape, characterized in that: The steps include: S1: preparing modified acrylic acid, amino resin and water-absorbing dispersed fiber; S2: Take 40-80 parts of modified acrylate, 2-5 parts of curing agent, 0.5-3 parts of photoinitiator, 5-10 parts of amino resin, 4-8 parts of water-absorbing and dispersing fiber and 30-60 parts of solvent, stir at a temperature of 150-170°C for 1-3h to obtain a UV viscosity-reducing adhesive layer; S3: sequentially laminating, drying and aging the antistatic layer, the substrate layer, the UV anti-viscosity adhesive layer and the release film layer to obtain the multi-mode anti-viscosity adhesive tape.

8. The method for preparing a multi-mode adhesive tape according to claim 7, characterized in that: The preparation process of the modified acrylate in step S1 is as follows: vinyl acrylate, methyl methacrylate and glycidyl methacrylate are taken in a mass ratio of 1:0.6-0.8:1.2-1.3, and stirred at a temperature of 170-180° C. for 45-65 minutes.

9. The method for preparing a multi-mode adhesive tape according to claim 7, characterized in that: The preparation process of the water-absorbing and dispersible fiber in step S1 is as follows: 1-3 parts of acrylamide, 3-6 parts of acrylic acid and 20-30 parts of deionized water are mixed and stirred evenly, the pH of the system is adjusted to 7.5 with sodium hydroxide, 2-4 parts of chitosan, 0.3-0.5 parts of potassium persulfate and 0.1-0.3 parts of a cross-linking agent are added continuously, and the mixture is stirred at a temperature of 60-80°C for 2-4 hours to obtain product A; the nozzle airflow is set to 3-5m / s, the nozzle temperature is set to 45-65°C, and product A is thermally sprayed onto the surface of the PET fiber to form a water-absorbing and dispersible fiber.

10. The method for preparing a multi-mode adhesive tape according to claim 7, characterized in that: The drying condition in step S3 is drying at a temperature of 80-90° C. for 40-60 minutes; the aging condition is aging at a temperature of 75-85° C. for 10-16 hours.

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