UV viscosity-reducing adhesive tape

Abstract

The invention relates to a UV (ultraviolet) viscosity-reducing adhesive tape which comprises a base film, a pressure-sensitive adhesive layer and a release film layer which are arranged from bottom to top, wherein a formula of a pressure-sensitive adhesive material adopted by the pressure-sensitive adhesive layer comprises 30-35 parts of a resin adhesive, 3-5 parts of a silane coupling agent KH560, 2-4 parts of polyethylene glycol ether, 4-6 parts of an additive, 5-8 parts of a modified boron nitride agent, 0.5-3 parts of a curing agent and 1.5-2.3 parts of a photoinitiator. The UV viscosity-reducing adhesive tape is prepared through the steps of adhesive mixing, filtering, defoaming, coating, rolling, curing and the like. The UV viscosity-reducing adhesive tape formed by the invention has the advantages of controllable thickness, high flatness, good long-term storage stability and non-climbing stripping force.

Description

Technical Field

[0001] The present invention relates to the field of adhesive tapes, and in particular to a UV adhesive tape. Background Art

[0002] UV adhesive tape is a functional tape whose viscosity is significantly reduced after exposure to ultraviolet light. Due to its adjustable viscosity, it plays an important role in electronics manufacturing, semiconductor packaging, precision instrument assembly, and other fields. In these fields, UV adhesive tape is primarily used to temporarily secure workpieces. After processing is completed, UV light exposure reduces the tape's viscosity, allowing for non-destructive removal of the workpiece, avoiding damage to the workpiece surface. Based on this, the present invention provides a UV adhesive tape. Summary of the Invention

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide a UV anti-adhesion tape to solve the problems raised in the above background technology.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] The present invention provides a UV adhesive tape comprising a base film, a pressure-sensitive adhesive layer, and a release film layer; the base film, the pressure-sensitive adhesive layer, and the release film layer are arranged from bottom to top;

[0006] The base film is PO film or PVC film, and the release film layer is PET release film;

[0007] The formula of the pressure-sensitive adhesive used in the pressure-sensitive adhesive layer includes 30-35 parts of resin adhesive, 3-5 parts of silane coupling agent KH560, 2-4 parts of polyethylene glycol ether and 4-6 parts of additives, 5-8 parts of modified boron nitride agent, 0.5-3 parts of curing agent and 1.5-2.3 parts of photoinitiator.

[0008] Preferably, the preparation method of the pressure-sensitive adhesive layer is: the resin adhesive, silane coupling agent KH560, polyethylene glycol ether and additives, modified boron nitride agent, curing agent and photoinitiator are uniformly blended, the blending speed is 350-400r / min, the blending is 1h, the blending temperature is 50°C, and the pressure-sensitive adhesive is obtained after the blending is completed. The pressure-sensitive adhesive is coated on the base film to form a pressure-sensitive adhesive layer, wherein the resin adhesive includes one or more of epoxy resin, acrylic resin, and polyurethane.

[0009] Preferably, the preparation method of the additive is:

[0010] S1: preheating aluminum borate whiskers at 55-60° C. for 1 hour to obtain preheated aluminum borate whiskers, stirring the preheated aluminum borate whiskers in a sufficient amount of potassium permanganate solution, then washing with water, filtering, and drying to obtain pretreated aluminum borate whiskers;

[0011] S2: 3-5 parts of strontium titanate, 1-2 parts of silane coupling agent KH550 and 2-4 parts of lanthanum chloride solution are uniformly mixed to obtain a strontium titanate solution;

[0012] Nano-calcium carbonate and nano-magnesium oxide are uniformly blended in a weight ratio of 3:2 to obtain a mixed material, and the mixed material and strontium titanate solution are fully blended in a weight ratio of 3:7 to obtain a strontium titanate modifier;

[0013] S3: The strontium titanate modifier and the pretreated aluminum borate whiskers are mixed and ball-milled in a weight ratio of 5:8. After the ball-milling is completed, the mixture is filtered and dried to obtain an additive.

[0014] The pressure-sensitive adhesive layer is coordinated by adding specific additives and modified boron nitride agents. Through the improvement of the co-matching of raw materials, the thermal conductivity and barrier properties of the pressure-sensitive adhesive layer are optimized, and the corrosion resistance of the product is significantly improved.

[0015] The additive is made of aluminum borate whiskers that are preheated and then blended with potassium permanganate solution. At the same time, it is improved by ball milling with a strontium titanate modifier. The strontium titanate and lanthanum chloride solution in the strontium titanate modifier, as well as raw materials such as nano-magnesium oxide, are coordinated and optimized to work synergistically. The prepared additive can better coordinate the raw materials in the system and enhance the performance of the product system.

[0016] Preferably, the mass fraction of the potassium permanganate solution is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%.

[0017] Preferably, the ball milling speed of the blending ball milling treatment is 1350-1400 r / min, and the ball milling time is 1 hour.

[0018] Preferably, the preparation method of the modified boron nitride agent is:

[0019] S11: Stirring the boron nitride in a sufficient amount of hydrogen peroxide solution, then washing with water, filtering, and drying. Irradiating the dried boron nitride in a proton irradiation box until the irradiation is completed to obtain irradiated boron nitride;

[0020] S12: The irradiated boron nitride and the modified liquid are subjected to ultrasonic modification treatment in a weight ratio of 5:8. After the ultrasonic modification is completed, the modified boron nitride agent is filtered and dried to obtain the modified boron nitride agent.

[0021] Preferably, the mass fraction of the hydrogen peroxide solution is 5-8%; the proton irradiation box is irradiated for 1 hour, and the irradiation power is 350-400W.

[0022] Preferably, the ultrasonic modification treatment is performed at an ultrasonic power of 350-400W and for 2 hours.

[0023] Preferably, the modified liquid comprises the following raw materials in parts by weight:

[0024] Mix 4-7 parts of bentonite, 2-4 parts of fumed silica, 3-5 parts of glass fiber and 5-8 parts of sodium silicate solution.

[0025] The modified liquid adopts the lamellar structure of bentonite, and is blended with raw materials such as fumed silica and glass fiber. Through the specific combination of raw materials, the boron nitride is better improved. The modified boron nitride agent prepared in the system further enhances the product performance and optimizes the product's performance coordination and stability.

[0026] Preferably, the mass fraction of the sodium silicate solution is 5-8%.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The UV anti-adhesion tape of the present invention can achieve a peeling force of less than 9gf / 25mm on the epoxy film after UV treatment, has good long-term storage stability, and the peeling force does not increase. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] A UV adhesive tape of this embodiment includes a base film, a pressure-sensitive adhesive layer, and a release film layer; the base film, the pressure-sensitive adhesive layer, and the release film layer are arranged from bottom to top;

[0031] The base film can be a PO film or a PVC film, and the release film layer can be a PET release film.

[0032] The PET release film can be made using the method of Example 3 in 202211044301.5 A wear-resistant and chemical-resistant PET release film and its preparation method.

[0033] The pressure-sensitive adhesive layer is prepared by uniformly blending 30-35 parts of a resin adhesive, 3-5 parts of a silane coupling agent KH560, 2-4 parts of a polyethylene glycol ether, 4-6 parts of an additive, 5-8 parts of a modified boron nitride agent, 0.5-3 parts of a curing agent, and 1.5-2.3 parts of a photoinitiator. The blending is performed at a speed of 350-400 r / min for 1 hour at a temperature of 50°C. The pressure-sensitive adhesive is then applied to a base film to form a pressure-sensitive adhesive layer. The resin adhesive comprises one or more of epoxy resin, acrylic resin, and polyurethane. The curing agent is one or more of an ester crosslinker, an epoxy crosslinker, and an amine crosslinker. The photoinitiator can be commercially available TPO photoinitiator, TPO-L photoinitiator, TMO photoinitiator, photoinitiator 184, and the like.

[0034] The preparation method of the additive of this embodiment is:

[0035] S1: preheating aluminum borate whiskers at 55-60° C. for 1 hour to obtain preheated aluminum borate whiskers, stirring the preheated aluminum borate whiskers in a sufficient amount of potassium permanganate solution, then washing with water, filtering, and drying to obtain pretreated aluminum borate whiskers;

[0036] S2: 3-5 parts of strontium titanate, 1-2 parts of silane coupling agent KH550 and 2-4 parts of lanthanum chloride solution are uniformly mixed to obtain a strontium titanate solution;

[0037] Nano-calcium carbonate and nano-magnesium oxide are uniformly blended in a weight ratio of 3:2 to obtain a mixed material, and the mixed material and strontium titanate solution are fully blended in a weight ratio of 3:7 to obtain a strontium titanate modifier;

[0038] S3: The strontium titanate modifier and the pretreated aluminum borate whiskers are mixed and ball-milled in a weight ratio of 5:8. After the ball-milling is completed, the mixture is filtered and dried to obtain an additive.

[0039] The mass fraction of the potassium permanganate solution in this embodiment is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%.

[0040] The ball milling speed of the blending ball milling treatment in this embodiment is 1350-1400 r / min, and the ball milling is 1 hour.

[0041] The preparation method of the modified boron nitride agent of this embodiment is:

[0042] S11: Stirring the boron nitride in a sufficient amount of hydrogen peroxide solution, then washing with water, filtering, and drying. Irradiating the dried boron nitride in a proton irradiation box until the irradiation is completed to obtain irradiated boron nitride;

[0043] S12: The irradiated boron nitride and the modified liquid are subjected to ultrasonic modification treatment in a weight ratio of 5:8. After the ultrasonic modification is completed, the modified boron nitride agent is filtered and dried to obtain the modified boron nitride agent.

[0044] The mass fraction of the hydrogen peroxide solution in this embodiment is 5-8%. The proton irradiation box is irradiated for 1 hour, and the irradiation power is 350-400W.

[0045] The ultrasonic modification treatment in this embodiment was performed at an ultrasonic power of 350-400 W and for 2 h.

[0046] The modified solution of this embodiment includes the following raw materials in parts by weight:

[0047] Mix 4-7 parts of bentonite, 2-4 parts of fumed silica, 3-5 parts of glass fiber and 5-8 parts of sodium silicate solution.

[0048] The mass fraction of the sodium silicate solution in this embodiment is 5-8%.

[0049] Example 1

[0050] A UV adhesive tape of this embodiment includes a base film, a pressure-sensitive adhesive layer, and a release film layer; the base film, the pressure-sensitive adhesive layer, and the release film layer are arranged from bottom to top;

[0051] The base film can be a PO film or a PVC film, and the release film layer can be a PET release film.

[0052] The PET release film can adopt 202211044301.5 A wear-resistant and chemical-resistant PET release film and a preparation method thereof.

[0053] The pressure-sensitive adhesive layer is prepared by uniformly blending 30 parts of a resin adhesive, 3 parts of a silane coupling agent KH560, 2 parts of a polyethylene glycol ether, 4 parts of an additive, 5 parts of a modified boron nitride agent, 2 parts of a curing agent, and 1.5 parts of a photoinitiator at a mixing speed of 350 r / min for 1 hour at a mixing temperature of 50°C. The pressure-sensitive adhesive is then applied to a base film to form a pressure-sensitive adhesive layer. The resin adhesive comprises one or more of epoxy resin, acrylic resin, and polyurethane. The curing agent comprises one or more of an ester crosslinker, an epoxy crosslinker, and an amine crosslinker. The photoinitiator can be commercially available TPO photoinitiator, TPO-L photoinitiator, or TMO photoinitiator.

[0054] The preparation method of the additive of this embodiment is:

[0055] S1: preheating aluminum borate whiskers at 55° C. for 1 hour to obtain preheated aluminum borate whiskers, stirring the preheated aluminum borate whiskers in a sufficient amount of potassium permanganate solution, then washing with water, filtering, and drying to obtain pretreated aluminum borate whiskers;

[0056] S2: 3 parts of strontium titanate, 1 part of silane coupling agent KH550 and 2 parts of lanthanum chloride solution are mixed evenly to obtain a strontium titanate solution;

[0057] Nano-calcium carbonate and nano-magnesium oxide are uniformly blended in a weight ratio of 3:2 to obtain a mixed material, and the mixed material and strontium titanate solution are fully blended in a weight ratio of 3:7 to obtain a strontium titanate modifier;

[0058] S3: The strontium titanate modifier and the pretreated aluminum borate whiskers are mixed and ball-milled in a weight ratio of 5:8. After the ball-milling is completed, the mixture is filtered and dried to obtain an additive.

[0059] The mass fraction of the potassium permanganate solution in this embodiment is 5%; the mass fraction of the lanthanum chloride solution is 2%.

[0060] The ball milling speed of the blended ball milling treatment in this embodiment is 1350 r / min, and the ball milling is performed for 1 hour.

[0061] The preparation method of the modified boron nitride agent of this embodiment is:

[0062] S11: Stirring the boron nitride in a sufficient amount of hydrogen peroxide solution, then washing with water, filtering, and drying. Irradiating the dried boron nitride in a proton irradiation box until the irradiation is completed to obtain irradiated boron nitride;

[0063] S12: The irradiated boron nitride and the modified liquid are subjected to ultrasonic modification treatment in a weight ratio of 5:8. After the ultrasonic modification is completed, the modified boron nitride agent is filtered and dried to obtain the modified boron nitride agent.

[0064] The mass fraction of the hydrogen peroxide solution in this embodiment is 5%; the proton irradiation box is irradiated for 1 hour, and the irradiation power is 350W.

[0065] The ultrasonic modification treatment in this embodiment was performed at an ultrasonic power of 350 W and for 2 h.

[0066] The modified solution of this embodiment includes the following raw materials in parts by weight:

[0067] Mix 4 parts bentonite, 2 parts fumed silica, 3 parts glass fiber and 5 parts sodium silicate solution.

[0068] The mass fraction of the sodium silicate solution in this embodiment is 5%.

[0069] Example 2

[0070] A UV adhesive tape of this embodiment includes a base film, a pressure-sensitive adhesive layer, and a release film layer; the base film, the pressure-sensitive adhesive layer, and the release film layer are arranged from bottom to top;

[0071] The base film can be a PO film or a PVC film, and the release film layer can be a PET release film.

[0072] PET release film can be used 202211044301.5 A wear-resistant and chemical-resistant PET release film and its preparation method

[0073] The pressure-sensitive adhesive layer is prepared by uniformly blending 35 parts of a resin adhesive, 5 parts of a silane coupling agent KH560, 4 parts of a polyethylene glycol ether, 6 parts of an additive, 8 parts of a modified boron nitride agent, 0.8 parts of a curing agent, and 2 parts of a photoinitiator at a mixing speed of 350 r / min for 1 hour at a mixing temperature of 50°C. The pressure-sensitive adhesive is then applied to a base film to form a pressure-sensitive adhesive layer. The resin adhesive comprises one or more of epoxy resin, acrylic resin, and polyurethane. The curing agent comprises one or more of an ester crosslinker, an epoxy crosslinker, and an amine crosslinker. The photoinitiator can be commercially available TPO photoinitiator, TPO-L photoinitiator, or TMO photoinitiator.

[0074] The preparation method of the additive of this embodiment is:

[0075] S1: preheating aluminum borate whiskers at 60° C. for 1 hour to obtain preheated aluminum borate whiskers, stirring the preheated aluminum borate whiskers in a sufficient amount of potassium permanganate solution, then washing with water, filtering, and drying to obtain pretreated aluminum borate whiskers;

[0076] S2: 5 parts of strontium titanate, 2 parts of silane coupling agent KH550 and 4 parts of lanthanum chloride solution are mixed evenly to obtain a strontium titanate solution;

[0077] Nano-calcium carbonate and nano-magnesium oxide are uniformly blended in a weight ratio of 3:2 to obtain a mixed material, and the mixed material and strontium titanate solution are fully blended in a weight ratio of 3:7 to obtain a strontium titanate modifier;

[0078] S3: The strontium titanate modifier and the pretreated aluminum borate whiskers are mixed and ball-milled in a weight ratio of 5:8. After the ball-milling is completed, the mixture is filtered and dried to obtain an additive.

[0079] The mass fraction of the potassium permanganate solution in this embodiment is 8%; the mass fraction of the lanthanum chloride solution is 5%.

[0080] The ball milling speed of the blending ball milling treatment in this embodiment is 1400 r / min, and the ball milling is 1 hour.

[0081] The preparation method of the modified boron nitride agent of this embodiment is:

[0082] S11: Stirring the boron nitride in a sufficient amount of hydrogen peroxide solution, then washing with water, filtering, and drying. Irradiating the dried boron nitride in a proton irradiation box until the irradiation is completed to obtain irradiated boron nitride;

[0083] S12: The irradiated boron nitride and the modified liquid are subjected to ultrasonic modification treatment in a weight ratio of 5:8. After the ultrasonic modification is completed, the modified boron nitride agent is filtered and dried to obtain the modified boron nitride agent.

[0084] The mass fraction of the hydrogen peroxide solution in this embodiment is 8%; the irradiation is carried out in the proton irradiation box for 1 hour, and the irradiation power is 400W.

[0085] The ultrasonic modification treatment in this embodiment was performed at an ultrasonic power of 400 W and for 2 h.

[0086] The modified solution of this embodiment includes the following raw materials in parts by weight:

[0087] Mix 7 parts of bentonite, 4 parts of fumed silica, 5 parts of glass fiber and 8 parts of sodium silicate solution.

[0088] The mass fraction of the sodium silicate solution in this embodiment is 8%.

[0089] Example 3

[0090] The UV adhesive tape of this embodiment includes a base film, a pressure-sensitive adhesive layer, and a release film layer; the base film, the pressure-sensitive adhesive layer, and the release film layer are arranged from bottom to top;

[0091] The base film can be a PO film or a PVC film, and the release film layer can be a PET release film.

[0092] The PET release film can adopt 202211044301.5 A wear-resistant and chemical-resistant PET release film and a preparation method thereof.

[0093] The pressure-sensitive adhesive layer is prepared by uniformly blending 32.5 parts of a resin adhesive, 4 parts of a silane coupling agent KH560, 3 parts of a polyethylene glycol ether, 5 parts of an additive, 6.5 parts of a modified boron nitride agent, 1.7 parts of a curing agent, and 2.1 parts of a photoinitiator at a mixing speed of 350 r / min for 1 hour at a mixing temperature of 50°C. The pressure-sensitive adhesive is then applied to a base film to form a pressure-sensitive adhesive layer. The resin adhesive comprises one or more of an epoxy resin, an acrylic resin, or a polyurethane. The curing agent comprises one or more of an ester crosslinker, an epoxy crosslinker, and an amine crosslinker. The photoinitiator can be commercially available TPO photoinitiator, TPO-L photoinitiator, or TMO photoinitiator.

[0094] The preparation method of the additive of this embodiment is:

[0095] S1: preheating aluminum borate whiskers at 57.5° C. for 1 hour to obtain preheated aluminum borate whiskers, stirring the preheated aluminum borate whiskers in a sufficient amount of potassium permanganate solution, then washing with water, filtering, and drying to obtain pretreated aluminum borate whiskers;

[0096] S2: 4 parts of strontium titanate, 1.5 parts of silane coupling agent KH550 and 3 parts of lanthanum chloride solution are mixed evenly to obtain a strontium titanate solution;

[0097] Nano-calcium carbonate and nano-magnesium oxide are uniformly blended in a weight ratio of 3:2 to obtain a mixed material, and the mixed material and strontium titanate solution are fully blended in a weight ratio of 3:7 to obtain a strontium titanate modifier;

[0098] S3: The strontium titanate modifier and the pretreated aluminum borate whiskers are mixed and ball-milled in a weight ratio of 5:8. After the ball-milling is completed, the mixture is filtered and dried to obtain an additive.

[0099] The mass fraction of the potassium permanganate solution in this embodiment is 6.5%; the mass fraction of the lanthanum chloride solution is 3.5%.

[0100] The ball milling speed of the blended ball milling treatment in this embodiment is 1370 r / min, and the ball milling is performed for 1 hour.

[0101] The preparation method of the modified boron nitride agent of this embodiment is:

[0102] S11: Stirring the boron nitride in a sufficient amount of hydrogen peroxide solution, then washing with water, filtering, and drying. Irradiating the dried boron nitride in a proton irradiation box until the irradiation is completed to obtain irradiated boron nitride;

[0103] S12: The irradiated boron nitride and the modified liquid are subjected to ultrasonic modification treatment in a weight ratio of 5:8. After the ultrasonic modification is completed, the modified boron nitride agent is filtered and dried to obtain the modified boron nitride agent.

[0104] The mass fraction of the hydrogen peroxide solution in this embodiment is 6.5%; the irradiation is carried out in the proton irradiation box for 1 hour, and the irradiation power is 375W.

[0105] The ultrasonic modification treatment in this embodiment was performed at an ultrasonic power of 375 W and for 2 h.

[0106] The modified solution of this embodiment includes the following raw materials in parts by weight:

[0107] Mix 5.5 parts of bentonite, 3 parts of fumed silica, 4 parts of glass fiber and 6.5 parts of sodium silicate solution.

[0108] The mass fraction of the sodium silicate solution in this embodiment is 6.5%.

[0109] The UV adhesive tape described in the above embodiment can be prepared through existing steps such as mixing, filtering, degassing, coating, winding, and aging.

[0110] Comparative Example 1.

[0111] The difference from Example 3 is that no additives were added.

[0112] Comparative Example 2.

[0113] The difference from Example 3 is that no strontium titanate modifier is added to the additive.

[0114] Comparative Example 3.

[0115] The difference from Example 3 is that no mixing material is added to the strontium titanate modifier.

[0116] Comparative Example 4.

[0117] The difference from Example 3 is that no modified boron nitride agent is added.

[0118] Comparative Example 5.

[0119] The difference from Example 3 is that no modifying liquid is added during the preparation of the modified boron nitride agent.

[0120] Comparative Example 6.

[0121] The difference from Example 3 is that no fumed silica or glass fiber is added to the modified liquid.

[0122] The products of Examples 1-3 and Comparative Examples 1-6 were subjected to performance tests, and the performance measurement results are as follows:

[0123]

[0124] From Examples 1-3 and Comparative Examples 1-6, it can be seen that the UV adhesive tape of Example 3 of the present invention can achieve a peel force of less than 9 gf / 25 mm on epoxy film after UV treatment, has good long-term storage stability, and does not increase in peel force. The performance of the product deteriorates significantly when no additives are added or when only one of the additives is added. The synergistic effect of the two additives is the most significant.

[0125] No strontium titanate modifier was added to the additive, no mixing material was added to the strontium titanate modifier, no modifying liquid was added in the preparation of the modified boron nitride agent, and no fumed silica or glass fiber was added to the modifying liquid. The performance of the products showed a trend of deterioration to varying degrees. The product raw materials obtained by the specific method of the present invention had the most significant performance effect, and other methods were used instead, but the effect was not as obvious as that of the present invention.

[0126] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0127] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A UV adhesive tape comprising a base film, characterized in that: It also includes a pressure-sensitive adhesive layer and a release film layer; the base film, the pressure-sensitive adhesive layer, and the release film layer are arranged from bottom to top; The base film is PO film or PVC film, and the release film layer is PET release film; The formula of the pressure-sensitive adhesive used in the pressure-sensitive adhesive layer includes 30-35 parts of resin adhesive, 3-5 parts of silane coupling agent KH560, 2-4 parts of polyethylene glycol ether and 4-6 parts of additives, 5-8 parts of modified boron nitride agent, 0.5-3 parts of curing agent and 1.5-2.3 parts of photoinitiator.

2. The UV adhesive tape according to claim 1, characterized in that: The preparation method of the pressure-sensitive adhesive layer is as follows: the resin adhesive, the silane coupling agent KH560, the polyethylene glycol ether and the additive, the modified boron nitride agent, the curing agent and the photoinitiator are uniformly blended, the blending speed is 350-400 r / min, the blending is 1 hour, the blending temperature is 50°C, and the pressure-sensitive adhesive is obtained after the blending is completed. The pressure-sensitive adhesive is coated on the base film to form a pressure-sensitive adhesive layer, wherein the resin adhesive includes one or more of epoxy resin, acrylic resin and polyurethane.

3. The UV adhesive tape according to claim 2, characterized in that: The preparation method of the additive is: S1: preheating aluminum borate whiskers at 55-60° C. for 1 hour to obtain preheated aluminum borate whiskers, stirring the preheated aluminum borate whiskers in a sufficient amount of potassium permanganate solution, then washing with water, filtering, and drying to obtain pretreated aluminum borate whiskers; S2: 3-5 parts of strontium titanate, 1-2 parts of silane coupling agent KH550 and 2-4 parts of lanthanum chloride solution are uniformly mixed to obtain a strontium titanate solution; Nano-calcium carbonate and nano-magnesium oxide are uniformly blended in a weight ratio of 3:2 to obtain a mixed material, and the mixed material and strontium titanate solution are fully blended in a weight ratio of 3:7 to obtain a strontium titanate modifier; S3: The strontium titanate modifier and the pretreated aluminum borate whiskers are mixed and ball-milled in a weight ratio of 5:

8. After the ball-milling is completed, the mixture is filtered and dried to obtain an additive.

4. The UV adhesive tape according to claim 3, characterized in that: The mass fraction of the potassium permanganate solution is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%; The ball milling speed of the blending ball milling treatment is 1350-1400 r / min, and the ball milling is performed for 1 hour.

5. The UV adhesive tape according to claim 2, characterized in that: The preparation method of the modified boron nitride agent is: S11: Stirring the boron nitride in a sufficient amount of hydrogen peroxide solution, then washing with water, filtering, and drying. Irradiating the dried boron nitride in a proton irradiation box until the irradiation is completed to obtain irradiated boron nitride; S12: The irradiated boron nitride and the modified liquid are subjected to ultrasonic modification treatment in a weight ratio of 5:

8. After the ultrasonic modification is completed, the modified boron nitride agent is filtered and dried to obtain the modified boron nitride agent.

6. The UV adhesive tape according to claim 5, characterized in that: The mass fraction of the hydrogen peroxide solution is 5-8%; the proton irradiation box is irradiated for 1 hour, and the irradiation power is 350-400W; The ultrasonic modification treatment is performed at an ultrasonic power of 350-400 W and for 2 hours.

7. The UV adhesive tape according to claim 5, characterized in that: The modified liquid comprises the following raw materials in parts by weight: Mix 4-7 parts of bentonite, 2-4 parts of fumed silica, 3-5 parts of glass fiber and 5-8 parts of sodium silicate solution.

8. The UV adhesive tape according to claim 7, characterized in that: The mass fraction of the sodium silicate solution is 5-8%.

9. The UV adhesive tape according to claim 2, characterized in that: The curing agent is one or more of an acid ester crosslinking agent, an epoxy crosslinking agent and an amine crosslinking agent, with a mass fraction of 0.5-3%.

10. The UV adhesive tape according to claim 2, characterized in that: The photoinitiator is one or more of TPO, TMO and 184, with a mass fraction of 1.5-2.3%.

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