Detachable waterproof sealant capable of being quickly assembled and used and preparation method thereof

Abstract

The invention particularly relates to a detachable waterproof sealant capable of being quickly assembled and used and a preparation method of the detachable waterproof sealant. The detachable waterproof sealant comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight: 20 to 40 parts of vinyl-terminated polymethylsiloxane, 1 to 10 parts of hydrogen-containing polymethylsiloxane, 25 to 45 parts of flame-retardant filler, 20 to 30 parts of reinforcing filler, 5 to 10 parts of tackifying resin, 0.01 to 2 parts of inhibitor and 0.5 to 3 parts of thixotropic agent; the component B is prepared from the following raw materials in parts by weight: 30 to 50 parts of vinyl-terminated polymethylsiloxane, 0.01 to 2 parts of catalyst, 30 to 50 parts of flame-retardant filler, 20 to 40 parts of reinforcing filler, 5 to 10 parts of tackifying resin and 0.5 to 3 parts of thixotropic agent. The detachable waterproof sealant can improve the assembling efficiency of the battery box body, can be repaired, has good waterproof sealing performance and high and low temperature resistance, and is environment-friendly and safe.

Description

Technical Field

[0001] This invention relates to the field of sealant technology, specifically to a removable waterproof sealant that can be quickly assembled and used, and its preparation method. Background Technology

[0002] Battery casings for electric two-wheelers, three-wheelers, and similar products typically consist of a metal outer shell, a plastic inner liner, and a metal top cover. The plastic inner liner provides safety insulation, while the metal outer shell serves to bear weight and provide impact protection. Traditional casing sealing methods include physical compression sealing with sealing rings and RTV (Room Temperature Vulcanized) silicone rubber. The former requires a certain amount of uniform pressure to induce compression deformation, but the contact surface between the top cover and the casing of battery boxes for electric two-wheelers, three-wheelers, and similar products is often a blade-like structure, which is relatively thin. Furthermore, the inner plastic liner has poor load-bearing capacity and is prone to deformation or even breakage, making compression sealing difficult. The latter method has a longer curing time and strong adhesion to the casing, making it impossible to disassemble for repair or causing deformation of the casing during disassembly, rendering it unusable or resulting in poor performance.

[0003] Chinese patent CN119752398A modifies RTV room temperature vulcanizing silicone rubber to reduce shear strength and make it detachable. However, RTV room temperature vulcanizing silicone rubber undergoes a cross-linking reaction from the outside to the inside of the colloid surface through water vapor in the air. The problem of slow overall curing at room temperature remains unsolved. This shortcoming is particularly prominent in the relatively sealed environment of the battery box, which greatly affects the assembly efficiency of the battery box. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the present invention aims to provide a removable waterproof sealant that can be quickly assembled and used, and a preparation method thereof; the removable waterproof sealant can improve the assembly efficiency of battery box, can be repaired, has good waterproof sealing performance and high and low temperature resistance, and is environmentally friendly and safe.

[0005] Another objective of this invention is to provide a removable waterproof sealant that can be quickly assembled and used, and a method for preparing the same. The preparation method is simple, easy to operate and control, and conducive to large-scale production.

[0006] The objective of this invention is achieved through the following technical solution: a removable waterproof sealant that can be quickly assembled and used, comprising component A and component B; component A comprises the following raw materials in parts by weight: 20-40 parts of vinyl-terminated polymethylsiloxane, 1-10 parts of hydrogen-containing polymethylsiloxane, 25-45 parts of flame-retardant filler, 20-30 parts of reinforcing filler, 5-10 parts of tackifying resin, 0.01-2 parts of inhibitor, and 0.5-3 parts of thixotropic agent; Component B comprises the following raw materials in parts by weight: 30-50 parts of vinyl-terminated polymethylsiloxane, 0.01-2 parts of catalyst, 30-50 parts of flame retardant filler, 20-40 parts of reinforcing filler, 5-10 parts of tackifying resin, and 0.5-3 parts of thixotropic agent.

[0007] The removable waterproof sealant of this invention is an AB two-component organosilicon system. Component A is a compound of vinyl-terminated polymethylsiloxane, hydrogen-containing polymethylsiloxane, flame-retardant filler, tackifying resin, and inhibitor, while component B is a compound of vinyl-terminated polymethylsiloxane, catalyst, flame-retardant filler, reinforcing filler, and tackifying resin. The two components, when mixed, can cure rapidly at room temperature, improving the efficiency of battery box assembly and ensuring the removable waterproof sealant has suitable adhesive strength. This prevents excessive adhesion that could cause shell deformation and guarantees the necessary interfacial adhesion for sealing. The sealant is repairable and exhibits excellent waterproof sealing performance, high and low temperature resistance, and is environmentally friendly and safe.

[0008] Furthermore, in components A and B, the terminal vinyl polymethylsiloxane is at least one of mono-terminated vinyl polymethylsiloxane and di-terminated vinyl polymethylsiloxane. The vinyl content of the terminal vinyl polymethylsiloxane is 0.1-5.5 wt%.

[0009] Furthermore, in components A and B, the hydrogen-containing polymethylsiloxane is at least one of terminally hydrogen-containing polymethylsiloxane, side-containing hydrogen-containing polymethylsiloxane, and terminally and side-containing hydrogen-containing polymethylsiloxane. The hydrogen content of the hydrogen-containing polymethylsiloxane is 0.1-0.75 wt%.

[0010] Furthermore, in components A and B, the flame-retardant filler is at least one of aluminum hydroxide and magnesium hydroxide. The particle size of the flame-retardant filler is 0.5-45µm.

[0011] Furthermore, in components A and B, the reinforcing filler is at least one of nano-calcium carbonate, quartz powder, diatomaceous earth, titanium dioxide, and zinc oxide.

[0012] Furthermore, in components A and B, the tackifying resin is at least one of methyl MQ resin, vinyl MQ resin, and hydrogen-containing MQ resin. This invention, by adding the aforementioned tackifying resin to components A and B respectively, along with vinyl-terminated polymethylsiloxane, flame-retardant fillers, reinforcing fillers, and other raw materials, achieves a waterproof sealant with adhesive strength that meets sealing requirements while avoiding excessive adhesion. It allows for quick assembly during use and also features detachability, excellent waterproof sealing performance, and resistance to high and low temperatures, maintaining good sealing performance even after high and low temperature cycling.

[0013] Furthermore, in components A and B, the thixotropic agent is at least one of fumed silica and polyether-modified silicone oil.

[0014] Furthermore, the inhibitor is at least one selected from 3-methyl-1-butyn-3-ol, 1-ethynyl-1-cyclohexanol, 3,5-dimethyl-1-hexyn-3-ol, methacrylate, and N,N,N,N-tetramethylethylenediamine.

[0015] Furthermore, the catalyst is a platinum catalyst.

[0016] This invention also provides a method for preparing a removable waterproof sealant that can be quickly assembled and used, comprising the following steps: Preparation of Component A: Mix vinyl-terminated polymethylsiloxane, flame retardant filler, and reinforcing filler, heat to dehydrate, then cool, add tackifying resin, inhibitor, and thixotropic agent, and stir evenly under vacuum conditions. Preparation of component B: Mix vinyl-terminated polymethylsiloxane, flame retardant filler, and reinforcing filler, heat to dehydrate, then cool, add tackifying resin, platinum catalyst, and thixotropic agent, and stir evenly under vacuum conditions. Mixing: Mix components A and B before use.

[0017] The beneficial effects of this invention are as follows: The removable waterproof sealant of this invention is an AB two-component organosilicon system, which is environmentally friendly, safe, non-toxic, and solvent-free; both components A and B are in paste form, and are easily mixed during use, allowing for localized application without causing pollution; during the cross-linking process, components A and B form a dense three-dimensional spatial structure, creating adhesion between the colloid and the shell to prevent moisture ingress; it also possesses suitable colloid shear strength and is removable. When repair is required, the battery box cover can be pulled open by external force, allowing for seamless separation of the seal without deformation of the battery box or outer shell. After the AB components are applied and cured on the battery shell, they cross-link to form a dense three-dimensional spatial structure, exhibiting excellent waterproof sealing performance and resistance to high and low temperatures. The preparation method of the removable waterproof sealant is simple, easy to operate and control, and conducive to large-scale production. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments. The content mentioned in the embodiments is not intended to limit the present invention.

[0019] In some embodiments of the present invention, a removable waterproof sealant that can be quickly assembled and used includes component A and component B; component A includes the following raw materials in parts by weight: 20-40 parts of vinyl-terminated polymethylsiloxane, 1-10 parts of hydrogen-containing polymethylsiloxane, 25-45 parts of flame-retardant filler, 20-30 parts of reinforcing filler, 5-10 parts of tackifying resin, 0.01-2 parts of inhibitor, and 0.5-3 parts of thixotropic agent; Component B comprises the following raw materials in parts by weight: 30-50 parts of vinyl-terminated polymethylsiloxane, 0.01-2 parts of catalyst, 30-50 parts of flame retardant filler, 20-40 parts of reinforcing filler, 5-10 parts of tackifying resin, and 0.5-3 parts of thixotropic agent.

[0020] In some embodiments of the present invention, in components A and B, the terminal vinyl polymethylsiloxane is at least one of single-terminated vinyl polymethylsiloxane and double-terminated vinyl polymethylsiloxane, wherein the vinyl content of the terminal vinyl polymethylsiloxane is 0.1-5.5 wt%, and the viscosity at 25°C is 1000-6000 mPa·s.

[0021] In some embodiments of the present invention, the hydrogen-containing polymethylsiloxane is at least one of terminal hydrogen-containing polymethylsiloxane, side-containing hydrogen-containing polymethylsiloxane, and terminal-side hydrogen-containing polymethylsiloxane, and the hydrogen content of the hydrogen-containing polymethylsiloxane is 0.1-0.75 wt%.

[0022] In some embodiments of the present invention, in components A and B, the flame-retardant filler is at least one of aluminum hydroxide and magnesium hydroxide, and the particle size of the flame-retardant filler is 0.5-45µm.

[0023] In some embodiments of the present invention, in components A and B, the reinforcing filler is at least one selected from nano-calcium carbonate, quartz powder, diatomaceous earth, titanium dioxide, and zinc oxide. The particle size of the reinforcing filler is 30-100 nm.

[0024] In some embodiments of the present invention, the tackifying resin in components A and B is at least one selected from methyl MQ resin, vinyl MQ resin, and hydrogen-containing MQ resin. The tackifying resins in components A and B may be the same or different.

[0025] In some embodiments of the present invention, the inhibitor is at least one selected from 3-methyl-1-butyn-3-ol, 1-ethynyl-1-cyclohexanol, 3,5-dimethyl-1-hexyn-3-ol, methacrylate, and N,N,N,N-tetramethylethylenediamine.

[0026] In some embodiments of the present invention, the thixotropic agent in components A and B is at least one of fumed silica and polyether-modified silicone oil.

[0027] In some embodiments of the present invention, the catalyst is a platinum catalyst with a platinum content of 2000-5000 ppm.

[0028] In some embodiments of the present invention, a method for preparing a removable waterproof sealant that can be quickly assembled and used includes the following steps: Preparation of Component A: Add vinyl-terminated polymethylsiloxane, flame retardant filler, and reinforcing filler to a high-speed planetary mixer or high-temperature kneader, dehydrate at 120-150℃, then cool to below 50℃, add tackifying resin, inhibitor, and thixotropic agent, and stir evenly under vacuum conditions of -0.07~-0.09MPa. Preparation of component B: Add vinyl-terminated polymethylsiloxane, flame retardant filler, and reinforcing filler to a high-speed planetary mixer or high-temperature kneader, dehydrate at 120-150℃, then cool to below 50℃, add tackifying resin, platinum catalyst, and thixotropic agent, and stir evenly under vacuum conditions of -0.07~-0.09MPa. Mixing: When using, mix component A and component B at a weight ratio of 1:0.8-1.2.

[0029] Example 1 This embodiment provides a removable waterproof sealant that can be quickly assembled and used, comprising component A and component B; component A comprises the following raw materials in parts by weight: 27 parts of vinyl-terminated polymethylsiloxane, 5.5 parts of hydrogen-containing polymethylsiloxane, 32 parts of flame-retardant filler, 25 parts of reinforcing filler, 8 parts of tackifying resin, 0.03 parts of inhibitor, and 2.5 parts of thixotropic agent; the hydrogen-containing polymethylsiloxane is Runhe Material RH-H3 hydrogen-containing polymethylsiloxane; the tackifying resin is methyl MQ resin, specifically Jining Tangyi Chemical methyl MQ silicone resin JP-MLK600.

[0030] Component B comprises the following raw materials in parts by weight: 32.5 parts of vinyl-terminated polymethylsiloxane, 0.5 parts of platinum catalyst, 32 parts of flame retardant filler, 25 parts of reinforcing filler, 8 parts of tackifying resin, and 2 parts of thixotropic agent; the tackifying resin is vinyl MQ resin, specifically Jining Tangyi Chemical vinyl MQ silicone resin 5202S.

[0031] Furthermore, in components A and B, the vinyl-terminated polymethylsiloxane is Runhe Material RHVi1320 double-terminated vinyl polydimethylsiloxane.

[0032] Furthermore, the flame-retardant filler is composed of aluminum hydroxide with a particle size D50 of 2µm and aluminum hydroxide with a particle size D50 of 10µm in a weight ratio of 2:1.

[0033] Furthermore, the reinforcing filler is composed of nano-calcium carbonate and zinc oxide in a weight ratio of 1:1.

[0034] Furthermore, the inhibitor is 1-ethynyl-1-cyclohexanol; the thixotropic agent is fumed silica.

[0035] Furthermore, the catalyst is a cassette catalyst with a content of 3000 ppm based on platinum.

[0036] In this embodiment, the preparation method of the above-mentioned quick-assembly and removable waterproof sealant includes the following steps: Preparation of Component A: Vinyl-terminated polymethylsiloxane, flame retardant filler, and reinforcing filler are added to a high-speed planetary mixer and dehydrated at 130°C. Then, the temperature is lowered to 45°C, and tackifying resin, inhibitor, and thixotropic agent are added. The mixture is stirred evenly under a vacuum of -0.09 MPa. Preparation of Component B: Vinyl-terminated polymethylsiloxane, flame retardant filler, and reinforcing filler are added to a high-speed planetary mixer and dehydrated at 130°C. Then, the temperature is lowered to 45°C, and tackifying resin, platinum catalyst, and thixotropic agent are added. The mixture is stirred evenly under a vacuum of -0.09 MPa. Mixing: When using, mix component A and component B in a weight ratio of 1:1.

[0037] Example 2 This embodiment provides a removable waterproof sealant that can be quickly assembled and used, comprising component A and component B. Component A comprises the following raw materials in parts by weight: 30 parts of vinyl-terminated polymethylsiloxane, 5 parts of hydrogen-containing polymethylsiloxane, 35 parts of flame-retardant filler, 25 parts of reinforcing filler, 7 parts of tackifying resin, 0.05 parts of inhibitor, and 1 part of thixotropic agent. The hydrogen-containing polymethylsiloxane is Runhe Material RH-H518 hydrogen-containing polymethylsiloxane. The tackifying resin is vinyl MQ resin, specifically Jining Tangyi Chemical Vinyl MQ Silicone Resin 5202S.

[0038] Component B comprises the following raw materials in parts by weight: 40 parts of vinyl-terminated polymethylsiloxane, 0.08 parts of platinum catalyst, 40 parts of flame retardant filler, 30 parts of reinforcing filler, 7 parts of tackifying resin, and 1 part of thixotropic agent; the tackifying resin is methyl MQ resin, specifically Jining Tangyi Chemical's methyl MQ silicone resin JP-MLK600.

[0039] Furthermore, the flame-retardant filler is composed of aluminum hydroxide with a particle size D50 of 2µm and magnesium hydroxide with a particle size D50 of 10µm in a weight ratio of 2:1.

[0040] Furthermore, the reinforcing filler is composed of nano-calcium carbonate and quartz powder in a weight ratio of 2:1.

[0041] Furthermore, the inhibitor is 3-methyl-1-butyn-3-ol; the thixotropic agent is composed of fumed silica and polyether-modified silicone oil in a weight ratio of 3:2.

[0042] The rest of the content of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

[0043] Example 3 This embodiment provides a removable waterproof sealant that can be quickly assembled and used, comprising component A and component B; component A comprises the following raw materials in parts by weight: 40 parts of vinyl-terminated polymethylsiloxane, 10 parts of hydrogen-containing polymethylsiloxane, 45 parts of flame retardant filler, 30 parts of reinforcing filler, 10 parts of tackifying resin, 2 parts of inhibitor, and 3 parts of thixotropic agent. Component B comprises the following raw materials in parts by weight: 50 parts of vinyl-terminated polymethylsiloxane, 2 parts of catalyst, 50 parts of flame-retardant filler, 40 parts of reinforcing filler, 10 parts of tackifying resin, and 3 parts of thixotropic agent.

[0044] Furthermore, the flame-retardant filler is composed of aluminum hydroxide with a particle size D50 of 2µm and aluminum hydroxide with a particle size D50 of 10µm in a weight ratio of 2:1.

[0045] Furthermore, the reinforcing filler is composed of nano-calcium carbonate and titanium dioxide in a weight ratio of 1:1.

[0046] The rest of the content of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

[0047] Example 4 This embodiment provides a removable waterproof sealant that can be quickly assembled and used, comprising component A and component B; component A comprises the following raw materials in parts by weight: 20 parts of vinyl-terminated polymethylsiloxane, 3 parts of hydrogen-containing polymethylsiloxane, 25 parts of flame retardant filler, 20 parts of reinforcing filler, 5 parts of tackifying resin, 0.05 parts of inhibitor, and 0.5 parts of thixotropic agent; Component B comprises the following raw materials in parts by weight: 30 parts of vinyl-terminated polymethylsiloxane, 0.05 parts of catalyst, 30 parts of flame retardant filler, 20 parts of reinforcing filler, 5 parts of tackifying resin, and 0.5 parts of thixotropic agent.

[0048] Furthermore, the flame-retardant filler is composed of aluminum hydroxide with a particle size D50 of 2µm and aluminum hydroxide with a particle size D50 of 10µm in a weight ratio of 1:1.

[0049] Furthermore, the reinforcing filler is composed of nano-calcium carbonate and zinc oxide in a weight ratio of 3:2. The thixotropic agent is polyether-modified silicone oil.

[0050] Comparative Example 1 The difference between this comparative example and Example 1 is that the vinyl MQ resin in component B is replaced with the same mass of terminal vinyl polymethylsiloxane.

[0051] The rest of the contents of this comparative example are the same as those of Example 1, and will not be repeated here.

[0052] Comparative Example 2 The difference between this comparative example and Example 1 is that in this comparative example, the methyl MQ resin in component A is replaced with the same mass of hydrogen-containing polymethylsiloxane.

[0053] The rest of the contents of this comparative example are the same as those of Example 1, and will not be repeated here.

[0054] Comparative Example 3 The difference between this comparative example and Example 1 is that: in this comparative example, the vinyl MQ resin in component B is replaced with the same mass of terminal vinyl polymethylsiloxane; and the methyl MQ resin in component A is replaced with the same mass of hydrogen-containing polymethylsiloxane.

[0055] The rest of the contents of this comparative example are the same as those of Example 1, and will not be repeated here.

[0056] The performance of the removable waterproof sealants prepared in Example 1 and Comparative Examples 1-3 was tested, and the test results are shown in the table below: Test Project Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Curing time / h 0.5 0.5 0.5 0.5 Shear strength / MPa 0.18 0.03 0.04 0.02 Air tightness test after curing OK OK OK NG Removable Detachable Detachable Detachable Detachable Air tightness test after 168 hours of high and low temperature cycling from -20℃ to 70℃. OK NG NG NG IPX7 test after 168 hours of high and low temperature cycling from -20℃ to 70℃. OK NG NG NG The shear strength test was conducted according to GB / T 7124-2008. The preparation method of the shear test lap joint specimen is as follows: After cleaning the surfaces of two aluminum sheets, a sealant prepared by mixing components A and B in a 1:1 weight ratio was used to bond the substrate. The bonding area was 12.5mm × 25mm, and the adhesive thickness was 0.2mm. After bonding, the substrate was cured at 25℃ and 50% RH. The test was conducted using a universal testing machine with a loading rate of 50mm / min. The removability was tested according to GB / T 43747-2024. The substrate was manually peeled at a uniform speed with a peel force of 60~80N. The peeling interface was considered to be interface failure. After separation, the substrate showed no deformation and no adhesive residue, indicating excellent removability. The airtightness test after curing was conducted according to GB / T 2423.38-2021 standard (pressure holding for 30min). The air tightness and IPX7 test methods after high and low temperature cycling are as follows: the sample is placed at -20℃ for 1 hour and at 70℃ for 1 hour for a total of 168 hours, and then restored at 25℃ for 2 hours; the air tightness retest is carried out in accordance with GB / T 2423.38-2021, and the IPX7 test is carried out in accordance with GB / T 4208-2017.

[0057] In summary, the removable waterproof sealant of this invention is an AB two-component silicone system. Both components A and B are in paste form, which can be mixed through a dual-tube static mixing tube for convenient operation. It can be applied locally without causing pollution and can cure quickly. During the cross-linking process, components A and B form a dense three-dimensional spatial structure, creating adhesion between the colloid and the shell to prevent moisture ingress. It also possesses suitable colloid shear strength, allowing for removability; the battery case cover can be pulled open without deformation of the case or shell, and it has vibration-damping properties. After application and curing on the battery case, the AB components cross-link to form a dense three-dimensional spatial structure. After tightening the screws, the airtightness test meets the requirements. Re-testing after 168 hours of high and low temperature cycling at -20℃ to 70℃ also meets the requirements for airtightness and IPX7 testing.

[0058] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A removable waterproof sealant that can be quickly assembled and used, characterized in that: It includes component A and component B; component A includes the following raw materials in parts by weight: 20-40 parts of vinyl-terminated polymethylsiloxane, 1-10 parts of hydrogen-containing polymethylsiloxane, 25-45 parts of flame retardant filler, 20-30 parts of reinforcing filler, 5-10 parts of tackifying resin, 0.01-2 parts of inhibitor, and 0.5-3 parts of thixotropic agent; Component B comprises the following raw materials in parts by weight: 30-50 parts of vinyl-terminated polymethylsiloxane, 0.01-2 parts of catalyst, 30-50 parts of flame retardant filler, 20-40 parts of reinforcing filler, 5-10 parts of tackifying resin, and 0.5-3 parts of thixotropic agent.

2. The removable waterproof sealant that can be quickly assembled and used according to claim 1, characterized in that: In components A and B, the terminal vinyl polymethylsiloxane is at least one of single-terminated vinyl polymethylsiloxane and double-terminated vinyl polymethylsiloxane.

3. The removable waterproof sealant that can be quickly assembled and used according to claim 1, characterized in that: The hydrogen-containing polymethylsiloxane is at least one of terminal hydrogen-containing polymethylsiloxane, side-containing hydrogen-containing polymethylsiloxane, and terminal-side hydrogen-containing polymethylsiloxane.

4. The removable waterproof sealant that can be quickly assembled and used according to claim 1, characterized in that: In components A and B, the flame-retardant filler is at least one of aluminum hydroxide and magnesium hydroxide.

5. The removable waterproof sealant that can be quickly assembled and used according to claim 1, characterized in that: In components A and B, the reinforcing filler is at least one of nano-calcium carbonate, quartz powder, diatomaceous earth, titanium dioxide, and zinc oxide.

6. The removable waterproof sealant that can be quickly assembled and used according to claim 1, characterized in that: In components A and B, the tackifying resin is at least one of methyl MQ resin, vinyl MQ resin, and hydrogen-containing MQ resin.

7. The removable waterproof sealant that can be quickly assembled and used according to claim 1, characterized in that: The inhibitor is at least one selected from 3-methyl-1-butyn-3-ol, 1-ethynyl-1-cyclohexanol, 3,5-dimethyl-1-hexyn-3-ol, methacrylate, and N,N,N,N-tetramethylethylenediamine.

8. The removable waterproof sealant that can be quickly assembled and used according to claim 1, characterized in that: In components A and B, the thixotropic agent is at least one of fumed silica and polyether-modified silicone oil.

9. The removable waterproof sealant that can be quickly assembled and used according to claim 1, characterized in that: The catalyst is a platinum catalyst.

10. A method for preparing a removable waterproof sealant that can be quickly assembled and used as described in any one of claims 1-9, characterized in that: Includes the following steps: Preparation of Component A: Mix vinyl-terminated polymethylsiloxane, flame retardant filler, and reinforcing filler, heat to dehydrate, then cool, add tackifying resin, inhibitor, and thixotropic agent, and stir evenly under vacuum conditions. Preparation of component B: Mix vinyl-terminated polymethylsiloxane, flame retardant filler, and reinforcing filler, heat to dehydrate, then cool, add tackifying resin, platinum catalyst, and thixotropic agent, and stir evenly under vacuum conditions. Mixing: Mix components A and B before use.