High-temperature-resistant waterproof frame sealing adhesive tape and preparation method thereof

Abstract

The adhesive tape comprises a release layer, an adhesive layer and a base material layer, the base material layer is coated with the adhesive layer, the release layer is attached to the other side of the adhesive layer, and a hydrophobic coating is arranged on the side, away from the adhesive layer, of the base material layer; the adhesive layer is obtained by drying an adhesive coating liquid, the coating liquid comprises the following components in parts by weight: 40-80 parts of macromolecular olefin rubber resin, 10-30 parts of micromolecular olefin rubber resin, 10-40 parts of tackifying resin, 2-10 parts of hollow silicon dioxide and 200-800 parts of a solvent, and compared with an organic super-hydrophobic coating, the hydrophobic heat resistance is greatly improved; by adding the hollow silicon dioxide, the cohesive force of the rubber is improved, the toughness is maintained, the micromolecular rubber is bound through the hollow structure, the glue overflowing condition is reduced, and the adhesive tape has low reaction activity, water resistance, chemical corrosion resistance and insulativity and is suitable for the field with low reaction activity on the adhesive tape in the production process of frame sealing lenses and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of frame-sealing tapes, and in particular relates to a high-temperature resistant and waterproof frame-sealing tape and a preparation method thereof. Background Art

[0002] When sealing and packaging potentially reactive objects, it is necessary to consider that the tape cannot react with the product, thereby contaminating or damaging the product. For example, in the production process of frame-sealed lenses, the low reactivity of rubber is an important advantage. During the high-temperature curing process, the resin in the frame will undergo a transition from liquid to solid in a relatively humid environment, which requires the frame-sealing tape to have good low reactivity and waterproof properties.

[0003] Although rubber itself has certain water-blocking properties, due to long-term curing in a high temperature and humid environment, the moisture in the environment will still enter the product, causing problems such as bubbles.

[0004] To address this problem, it is necessary to develop a high-temperature resistant and waterproof frame sealing tape to solve the problem of tape falling off and water vapor penetration under high temperature. Summary of the invention

[0005] The purpose of the present invention is to provide a high temperature resistant and waterproof frame sealing tape, which has low reactivity, water resistance, chemical corrosion resistance and insulation, and is suitable for fields with low reactivity to the tape during the production process of frame sealing lenses, etc.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a high temperature resistant and waterproof frame sealing tape, the tape comprising a release layer, an adhesive layer, a substrate layer and a hydrophobic coating layer stacked in sequence;

[0007] The adhesive layer is obtained by drying an adhesive coating liquid, wherein the coating liquid comprises the following components in parts by weight:

[0008] 40-80 parts of macromolecular olefin rubber resin SBS, such as 40 parts, 50 parts, 60 parts, 70 parts, 80 parts; including but not limited to these; 10-30 parts of small molecule olefin rubber resin SBS, such as 10 parts, 20 parts, 30 parts, including but not limited to these; 10-40 parts of tackifying resin, such as 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 40 parts, including but not limited to these; 2-10 parts of hollow silica, such as 2 parts, 4 parts, 6 parts, 8 parts, 10 parts, including but not limited to these; 200-800 parts of solvent; such as 200 parts, 400 parts, 600 parts, 800 parts, including but not limited to these.

[0009] The technical solution further improved in the above technical solution is as follows:

[0010] 1. In the above scheme, the vinyl content of the macromolecular olefin rubber resin is 0% and the weight average molecular weight is 300,000-1,000,000.

[0011] 2. In the above scheme, the heavy vinyl content of the small molecule olefin rubber is 0%, and the weight average molecular weight is 20,000-100,000.

[0012] 3. In the above scheme, the double bonds in the tackifying resin are hydrogenated and added, and in order to reduce the reactivity of the tackifying resin, the tackifying resin is wrapped by butyl rubber microcapsules and begins to release when heated at 70°C, including but not limited to this.

[0013] Preparation process of tackifying resin wrapped in butyl rubber microcapsules: isobutylene rubber is dispersed in water under the action of emulsifier (hexadecyltrimethylammonium bromide) to form a stable emulsion. The isobutylene rubber is evenly dispersed in the water phase to form an emulsion with suitable particle size. The tackifying resin solution or emulsion is slowly added to the isobutylene rubber emulsion, and stirred or ultrasonically treated at the same time, so that the tackifying resin is wrapped by the isobutylene rubber emulsion to form microcapsules. After the wrapping is completed, add an appropriate amount of olefin crosslinking agent (TAIC) and thermal initiator (AIBN) to make the isobutylene rubber undergo a crosslinking reaction and solidify to form a stable microcapsule structure.

[0014] 4. In the above scheme, the silicon dioxide is low-density silicon dioxide without reactive groups, has a hollow physical structure, and has a particle size of 20-40 μm, such as 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, including but not limited to these.

[0015] 5. In the above scheme, the hydrophobic coating is a silane-modified cerium oxide coating, the coating is a core-shell structure, the core structure is cerium oxide, and the outer shell is a silane coupling agent, including but not limited to this. The coating thickness is 2-10μm. Further, the coating is a Cassie hydrophobic structure.

[0016] 6. In the above scheme, the solvent is toluene and / or gasoline, including but not limited to these.

[0017] 7. In the above solution, the release layer includes one or more of an organic silicon release agent, a fluorine release agent, and a non-silicon release agent, and has a thickness of 5-100 μm, and further 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, etc.

[0018] 8. In the above solution, the substrate layer is selected from one or more of polyester film, polyimide (PI) film, and polyolefin polymer film, and has a thickness of 5-100 μm, and further 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, etc.

[0019] 8. In the above solution, the thickness of the adhesive layer is 15-50 μm.

[0020] To achieve the above object, another technical solution adopted by the present invention is: a method for preparing a high temperature resistant and waterproof frame sealing tape, comprising the following steps:

[0021] S1. Preparing an adhesive coating liquid: adding a macromolecular olefin rubber resin, a small molecule olefin rubber resin, and a solvent into a stirring kettle and stirring at high speed. After being fully dispersed, a tackifying resin and silicon dioxide are added and stirred at high speed to obtain an adhesive coating liquid;

[0022] S2, coating a hydrophobic layer on one side of the outer layer of the substrate and coating an adhesive coating liquid on the other side;

[0023] S3, laminating a release layer on the adhesive layer of the substrate layer, and rolling up to obtain the frame-sealing tape.

[0024] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0025] 1. The present invention further improves the water barrier property of the tape under high temperature and high humidity conditions by spraying a silane-modified cerium oxide coating on the outer layer of the substrate. The silane-modified cerium oxide coating can reduce agglomeration and be better sprayed on the surface of the substrate. And through the tackifying resin and small molecule rubber wrapped in butyl rubber microcapsules, the low reactivity of the rubber is maintained while improving the adhesion; in addition, the addition of low-density non-reactive silica not only improves the cohesive strength of the rubber, but also restrains the flow of the small molecule rubber, reducing the overflow of the rubber at high temperature.

[0026] 2. The adhesive tape of the present invention has low reactivity, water resistance, chemical corrosion resistance, and insulation, and is suitable for use in fields where the adhesive tape has low reactivity during the production process of frame-sealed lenses, etc. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with embodiments:

[0028] Example 1

[0029] This case involves a high-temperature resistant waterproof tape, the lamination sequence of which is a 5μm hydrophobic coating, a 36μm thick PET film, a 30μm thick adhesive layer, and a 25μm thick release film.

[0030] Among them, the type of release layer is silicone release agent Dow Corning 7485, the type of adhesive is rubber system pressure-sensitive adhesive 80W molecular weight SBS (D1133), 6.5W molecular weight SBS (SBS YH-796); hollow silica (xff29); the tackifying resin wrapped in butyl rubber microcapsules is KE-100.

[0031] By weight, the components of the adhesive layer include 80 parts of macromolecular olefin rubber, 20 parts of small molecule olefin rubber, 20 parts of tackifying resin, 2 parts of silica additive, and 600 parts of toluene; wherein the vinyl content of the macromolecular olefin rubber is 0%, which is 80W molecular weight SBS (D1133); the vinyl content of the small molecule olefin rubber is 0%, which is 6.5W molecular weight SBS (SBS YH-796). The hydrophobic coating is a silane-modified cerium oxide coating, the coating is a core-shell structure, the core structure is cerium oxide, the outer shell is a silane coupling agent, the silica surface has no active groups and the interior is a hollow structure, and the tackifying resin is wrapped in butyl rubber microcapsules and released at 70°C.

[0032] The coating preparation method of the adhesive is as follows: 80 parts of macromolecular olefin rubber, 20 parts of small molecule olefin rubber and 600 parts of toluene solvent are added into a stirring kettle and stirred at high speed for 120 minutes. After being fully dispersed, 20 parts of microcapsule-encapsulated tackifying resin and 2 parts of silica are added and stirred at high speed for 60 minutes to obtain a coating liquid.

[0033] The method for preparing the high temperature resistant and waterproof frame sealing tape comprises the following steps:

[0034] S1, coating a hydrophobic layer on the outer layer of the substrate, and coating the above-mentioned adhesive coating liquid on the other side;

[0035] S2, laminating a release layer on the adhesive layer of the substrate layer, and rolling up to obtain the frame-sealing tape.

[0036] Example 2

[0037] This case involves a high-temperature resistant waterproof tape, the lamination sequence of which is a 5μm hydrophobic coating, a 36μm thick PET film, a 25μm thick adhesive layer, and a 36μm thick release film.

[0038] Among them, the type of release layer is silicone release agent Dow Corning 7485, the type of adhesive is rubber system pressure-sensitive adhesive 80W molecular weight SBS (D1133), 6.5W molecular weight SBS (SBS YH-796); hollow silica (xff29); the tackifying resin wrapped in butyl rubber microcapsules is KE-100.

[0039] The components of the adhesive layer include 80 parts of macromolecular olefin rubber, 20 parts of small molecule olefin rubber, 30 parts of tackifying resin, 2 parts of silica additive, and 500 parts of toluene by weight; wherein the macromolecular olefin rubber has a vinyl content of 0% and a weight average molecular weight of 800,000; wherein the small molecule olefin rubber has a vinyl content of 0% and a weight average molecular weight of 65,000. The hydrophobic coating is a silane-modified cerium oxide coating, the coating is a core-shell structure, the core structure is cerium oxide, the outer shell is a silane coupling agent, the silica surface has no active groups and the interior is a hollow structure, and the tackifying resin is wrapped in butyl rubber microcapsules and released at 70°C.

[0040] The coating preparation method of the adhesive is as follows: 80 parts of macromolecular olefin rubber, 20 parts of small molecule olefin rubber, and 500 parts of toluene solvent are added into a stirring kettle and stirred at high speed for 120 minutes. After being fully dispersed, 30 parts of microcapsule-encapsulated tackifying resin and 2 parts of silica are added and stirred at high speed for 60 minutes to obtain a coating liquid.

[0041] The method for preparing the high temperature resistant and waterproof frame sealing tape comprises the following steps:

[0042] S1, coating a hydrophobic layer on the outer layer of the substrate, and coating the above-mentioned adhesive coating liquid on the other side;

[0043] S2, laminating a release layer on the adhesive layer of the substrate layer, and rolling up to obtain the frame-sealing tape.

[0044] Example 3

[0045] This case involves a high-temperature resistant waterproof tape, the lamination sequence of which is a 5μm hydrophobic coating, a 36μm thick PET film, a 30μm thick adhesive layer, and a 36μm thick release film.

[0046] Among them, the type of release layer is silicone release agent Dow Corning 7485, the type of adhesive is rubber system pressure-sensitive adhesive 80W molecular weight SBS (D1133), 6.5W molecular weight SBS (SBS YH-796); hollow silica (xff29); the tackifying resin wrapped in butyl rubber microcapsules is KE-100.

[0047] The components of the adhesive layer include 60 parts of macromolecular olefin rubber, 30 parts of small molecule olefin rubber, 15 parts of tackifying resin, 2 parts of silica additive, and 700 parts of toluene by weight; wherein the macromolecular olefin rubber has a vinyl content of 0% and a weight average molecular weight of 800,000; wherein the small molecule olefin rubber has a vinyl content of 0% and a weight average molecular weight of 65,000. The hydrophobic coating is a silane-modified cerium oxide coating, the coating is a core-shell structure, the core structure is cerium oxide, the outer shell is a silane coupling agent, the silica surface has no active groups and the interior is a hollow structure, and the tackifying resin is wrapped in butyl rubber microcapsules and released at 70°C.

[0048] The coating preparation method of the adhesive is as follows: 60 parts of macromolecular olefin rubber, 30 parts of small molecule olefin rubber, and 700 parts of toluene solvent are added into a stirring kettle and stirred at high speed for 120 minutes. After being fully dispersed, 15 parts of tackifying resin wrapped in butyl rubber microcapsules and 2 parts of silica are added and stirred at high speed for 60 minutes to obtain a coating liquid.

[0049] The method for preparing the high temperature resistant and waterproof frame sealing tape comprises the following steps:

[0050] S1, coating a hydrophobic layer on the outer layer of the substrate, and coating the above-mentioned adhesive coating liquid on the other side;

[0051] S2, laminating a release layer on the adhesive layer of the substrate layer, and rolling up to obtain the frame-sealing tape.

[0052] Comparative Example 1

[0053] This case involves a high-temperature resistant waterproof tape, the lamination sequence of which is a hydrophobic coating of 0 μm, a PET film of 36 μm thickness, an adhesive layer of 30 μm thickness, and a release film of 25 μm thickness.

[0054] Among them, the type of release layer is silicone release agent Dow Corning 7485, the type of adhesive is rubber system pressure-sensitive adhesive 80W molecular weight SBS (D1133), 6.5W molecular weight SBS (SBS YH-796); hollow silica (xff29); the tackifying resin wrapped in butyl rubber microcapsules is KE-100.

[0055] By weight, the components of the adhesive layer include 80 parts of macromolecular olefin rubber, 20 parts of small molecule olefin rubber, 20 parts of tackifying resin, 2 parts of silica additive, and 600 parts of toluene; wherein the macromolecular olefin rubber has a vinyl content of 0% and a weight average molecular weight of 800,000; the small molecule olefin rubber has a vinyl content of 0% and a weight average molecular weight of 65,000. The hydrophobic coating is a silane-modified cerium oxide coating, the coating is a core-shell structure, the core structure is cerium oxide, the outer shell is a silane coupling agent, the silica surface has no active groups and the interior is a hollow structure, and the tackifying resin is wrapped by butyl rubber microcapsules.

[0056] The coating preparation method of the adhesive is as follows: 80 parts of macromolecular olefin rubber, 20 parts of small molecule olefin rubber and 600 parts of toluene solvent are added into a stirring kettle and stirred at high speed for 120 minutes. After being fully dispersed, 20 parts of microcapsule-encapsulated tackifying resin and 2 parts of silica are added and stirred at high speed for 60 minutes to obtain a coating liquid.

[0057] The method for preparing the high temperature resistant and waterproof frame sealing tape comprises the following steps:

[0058] S1, applying the above-mentioned adhesive coating liquid on the outer layer of the substrate;

[0059] S2, laminating a release layer on the adhesive layer of the substrate layer, and rolling up to obtain the frame-sealing tape.

[0060] Comparative Example 2

[0061] This case involves a high-temperature resistant waterproof tape, the lamination sequence of which is a 5μm hydrophobic coating, a 36μm thick PET film, a 30μm thick adhesive layer, and a 25μm thick release film.

[0062] Among them, the type of release layer is silicone release agent Dow Corning 7485, the type of adhesive is rubber system pressure-sensitive adhesive 80W molecular weight SBS (D1133), 6.5W molecular weight SBS (SBS YH-796); hollow silica (xff29); the tackifying resin wrapped in butyl rubber microcapsules is KE-100.

[0063] By weight, the components of the adhesive layer include 80 parts of macromolecular olefin rubber, 40 parts of small molecule olefin rubber, 0 parts of tackifying resin, 2 parts of silica additive, and 600 parts of toluene; wherein the macromolecular olefin rubber has a vinyl content of 0% and a weight average molecular weight of 800,000; wherein the small molecule olefin rubber has a vinyl content of 0% and a weight average molecular weight of 65,000. The hydrophobic coating is a silane-modified cerium oxide coating, the coating is a core-shell structure, the core structure is cerium oxide, the outer shell is a silane coupling agent, the silica surface has no active groups and the interior is a hollow structure.

[0064] The coating preparation method of the adhesive is as follows: 80 parts of macromolecular olefin rubber, 40 parts of small molecule olefin rubber and 600 parts of toluene solvent are added into a stirring kettle and stirred at high speed for 120 minutes. After being fully dispersed, 2 parts of silicon dioxide are added and stirred at high speed for 60 minutes to obtain a coating liquid.

[0065] The method for preparing the high temperature resistant and waterproof frame sealing tape comprises the following steps:

[0066] S1, coating a hydrophobic layer on the outer layer of the substrate, and coating the above-mentioned adhesive coating liquid on the other side;

[0067] S2, laminating a release layer on the adhesive layer of the substrate layer, and rolling up to obtain the frame-sealing tape.

[0068] Comparative Example 3

[0069] This case involves a high-temperature resistant waterproof tape, the lamination sequence of which is a 5μm hydrophobic coating, a 36μm thick PET film, a 30μm thick adhesive layer, and a 25μm thick release film.

[0070] Among them, the type of release layer is silicone release agent Dow Corning 7485, the type of adhesive is rubber system pressure-sensitive adhesive 80W molecular weight SBS (D1133), 6.5W molecular weight SBS (SBS YH-796); hollow silica (xff29).

[0071] The adhesive layer comprises 80 parts by weight of macromolecular olefin rubber, 20 parts of small molecule olefin rubber, 20 parts of tackifying resin, 2 parts of silica additive, and 600 parts of toluene; wherein the macromolecular olefin rubber has a vinyl content of 0% and a weight average molecular weight of 800,000; wherein the small molecule olefin rubber has a vinyl content of 0% and a weight average molecular weight of 65,000. The hydrophobic coating is a silane-modified cerium oxide coating, the coating is a core-shell structure, the core structure is cerium oxide, the outer shell is a silane coupling agent, and the tackifying resin is not encapsulated by butyl rubber microcapsules.

[0072] The coating preparation method of the adhesive is as follows: 80 parts of macromolecular olefin rubber, 20 parts of small molecule olefin rubber and 600 parts of toluene solvent are added into a stirring kettle and stirred at high speed for 120 minutes. After being fully dispersed, 20 parts of unencapsulated tackifying resin and 2 parts of silica are added and stirred at high speed for 60 minutes to obtain a coating liquid.

[0073] Comparative Example 4

[0074] This case involves a high-temperature resistant waterproof tape, the lamination sequence of which is a 5μm hydrophobic coating, a 36μm thick PET film, a 30μm thick adhesive layer, and a 25μm thick release film.

[0075] Among them, the type of release layer is silicone release agent Dow Corning 7485, the type of adhesive is rubber system pressure-sensitive adhesive 80W molecular weight SBS (D1133), 6.5W molecular weight SBS (SBS YH-796); hollow silica (xff29).

[0076] The adhesive layer comprises 80 parts by weight of macromolecular olefin rubber, 20 parts of small molecule olefin rubber, 20 parts of tackifying resin, 0 parts of silica additive, and 600 parts of toluene; wherein the macromolecular olefin rubber has a vinyl content of 0% and a weight average molecular weight of 800,000; wherein the small molecule olefin rubber has a vinyl content of 0% and a weight average molecular weight of 65,000. The hydrophobic coating is a silane-modified cerium oxide coating, the coating is a core-shell structure, the core structure is cerium oxide, the outer shell is a silane coupling agent, and the tackifying resin is not encapsulated by butyl rubber microcapsules.

[0077] The coating preparation method of the adhesive is as follows: 80 parts of macromolecular olefin rubber, 20 parts of small molecule olefin rubber, and 600 parts of toluene solvent are added into a stirring kettle and stirred at high speed for 120 minutes. After being fully dispersed, 40 parts of microcapsule-encapsulated tackifying resin and 2 parts of silica are added and stirred at high speed for 60 minutes to obtain a coating liquid.

[0078] Test methods and results

[0079] The above cases were tested for performance comparison, including 180° peeling force at room temperature, 180° peeling force at high temperature, and whether residual glue or overflow glue occurred at high temperature. The test results are shown in Table 1. The specific test method is as follows:

[0080] 180° peeling force at room temperature: The sample width is 25mm. Use a 2kg roller to stick the sample on the SUS steel plate at a speed of 300mm / min. Roll back and forth three times and let it stand at room temperature for 20min. The parameters of the tensile testing machine are as follows: the stretching speed is 300mm / min and the distance is 150mm.

[0081] High-temperature peeling force: The sample width is 25mm. Use a 2kg roller to stick the sample on the SUS steel plate at a speed of 300mm / min, roll back and forth three times, heat at 50℃ for 2h, and then heat at 130℃ for 4h; Tensile testing machine parameters: tensile speed is 300mm / min, distance is 150mm, observe whether there is glue overflow.

[0082] High-temperature residual adhesive: The width of the sample strip is 25 mm. The sample is attached to the uncured framed lens and heated at 50°C for 2 hours, and then heated at 130°C for 4 hours. The tape is torn off to observe whether there is residual adhesive.

[0083] High temperature and high humidity (6050): The sample strip width is 25 mm. The sample is attached to a SUS steel plate and rolled back and forth three times. It is placed at 60°C and 50 RH for 4 hours. The sealing tape is observed to see if there are water bubbles.

[0084] Table 1 shows the performance of high temperature resistant waterproof frame sealing tape

[0085] Table 1

[0086]

[0087] It can be seen from the examples and comparative data in Table 1 that by spraying a silicon oxide-modified cerium oxide coating on the surface of the substrate, the hydrophobicity and heat resistance are greatly improved compared to the organic super-hydrophobic coating; by adding hollow silica to improve the rubber cohesion and maintain toughness, by binding small molecule rubber through the hollow structure, the occurrence of glue overflow is reduced, the tape has low reactivity, water resistance, chemical corrosion resistance, and insulation, and is suitable for fields with low reactivity to the tape during the production process of frame-sealed lenses, etc.

[0088] By comparing Examples 1 and 2 of the present invention, after the thickness of the glue is reduced, the peeling force is reduced. By comparing Examples 1 and 3, too much small molecular weight rubber is added, which does not significantly improve the peeling force, and also causes a significant decrease in cohesion, and a tackifying resin is still needed to ensure adhesion. By analyzing the data of Example 1 and Comparative Example 1, it can be seen that under the protection of the hydrophobic coating, water vapor can be better prevented from entering the frame sealing tape, thereby avoiding bubbles caused by water vapor. By comparing Example 1 with Comparative Examples 2, 3, and 4, it can be seen that simply adding small molecule rubber has a small peeling force and causes a significant decrease in cohesion. The tackifying resin is reactive and participates in the reaction during the curing process of the resin XDI, resulting in residual glue remaining on the product frame during the tearing process, thereby contaminating the product. Under the protection of the isobutylene rubber microcapsules, the tackifying resin is released at 70°C, and the resin XDI is almost completely cured. At this time, the probability of the tackifying resin reacting with the product is greatly reduced, avoiding reaction with the resin in the product, thereby playing a role of high adhesion and low reactivity. The small molecule rubber is bound by the hollow structure to reduce the occurrence of overflow.

[0089] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant and waterproof frame sealing tape, characterized in that: The adhesive tape comprises a release layer, an adhesive layer and a substrate layer, wherein the adhesive layer is coated on the substrate layer, the release layer is attached to the other side of the adhesive layer, and a hydrophobic coating is provided on the side of the substrate layer facing away from the adhesive layer; The adhesive layer is obtained by drying an adhesive coating liquid, wherein the coating liquid comprises the following components in parts by weight: 40-80 parts of macromolecular olefin rubber resin SBS, 10-30 parts of small molecule olefin rubber resin SBS, 10-40 parts of tackifying resin, 2-10 parts of silicon dioxide, and 200-800 parts of solvent.

2. The high temperature resistant and waterproof frame sealing tape according to claim 1, characterized in that: The macromolecular olefin rubber resin has a vinyl content of 0% and a weight average molecular weight of 300,000-1,000,000.

3. The high temperature resistant and waterproof frame sealing tape according to claim 1, characterized in that: The small molecule olefin rubber has a vinyl content of 0% and a weight average molecular weight of 20,000-100,000.

4. The high temperature resistant and waterproof frame sealing tape according to claim 1, characterized in that: The double bonds in the tackifying resin are hydrogenated and added, and are wrapped by butyl rubber microcapsules and released at 70°C.

5. The high temperature resistant and waterproof frame sealing tape according to claim 1, characterized in that: The silicon dioxide is low-density silicon dioxide without reactive groups, has a hollow physical structure, and has a particle size of 20-40 μm.

6. The high temperature resistant and waterproof frame sealing tape according to claim 1, characterized in that: The hydrophobic coating is a cerium oxide coating modified by silane, and the coating thickness is 2-10 μm.

7. The high temperature resistant and waterproof frame sealing tape according to claim 2, characterized in that: The solvent is one or more of toluene, xylene and gasoline.

8. The high temperature resistant and waterproof frame sealing tape according to claim 1, characterized in that: The release layer includes one or more of an organic silicon release agent, a fluorine release agent, and a non-silicon release agent, and has a thickness of 5-100 μm.

9. The high temperature resistant and waterproof frame sealing tape according to claim 1, characterized in that: The substrate layer is selected from one or more of polyester film, polyimide (PI) film and polyolefin polymer film; and has a thickness of 5-100 μm.

10. A method for preparing the high temperature resistant and waterproof frame sealing tape according to claim 1, characterized in that: The following steps are involved: S1. Preparing an adhesive coating liquid: adding a macromolecular olefin rubber resin, a small molecule olefin rubber resin, and a solvent into a stirring kettle and stirring at high speed. After being fully dispersed, a tackifying resin and silicon dioxide are added and stirred at high speed to obtain an adhesive coating liquid; S2, coating a hydrophobic layer on one side of the outer layer of the substrate and coating an adhesive coating liquid on the other side; S3, laminating a release layer on the adhesive layer of the substrate layer, and rolling up to obtain the frame-sealing tape.

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