Super-sticky moisture-proof and fire-proof plugging adhesive sticker

Abstract

The invention relates to the technical field of electric power materials, in particular to a super-sticky moisture-proof and fireproof blocking adhesive sticker, the super-sticky moisture-proof and fireproof blocking adhesive sticker takes a PET film as a PET base material, a wear-resistant layer is attached to one side of the PET base material, an adhesive layer is attached to the other side of the PET base material, and the PET base material specifically comprises the following components in parts by weight: 80-100 parts of PET particles, 1-2 parts of a curing agent, 1-2 parts of a curing agent and 1-2 parts of a curing agent. The composite material comprises the following components in parts by weight: 2-5 parts of an acrylonitrile-butadiene-styrene copolymer, 5-8 parts of a flame retardant, 0.5-1.5 parts of nano silicon dioxide, 1-2 parts of filling microfibers and 1-2 parts of isopropyl tri (dodecylbenzenesulfonyl) titanate. The adhesive layer specifically comprises the following components in parts by weight: 20-40 parts of methyl vinyl silicone rubber, 5-15 parts of a rubber elastomer, 5-15 parts of tackifying resin, 20-40 parts of a flame retardant, 30-50 parts of filler and 3-5 parts of plant essential oil microcapsules. The prepared easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material has self-curing performance, the cured easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material can be tightly attached to a protected part, and the easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material has excellent waterproof sealing performance and electric leakage resistance, has excellent high-temperature resistance and atmospheric aging resistance, is good in wear resistance, and can be used as a waterproof, moisture-proof and anti-corrosion coiled material. And the material is high in flame-retardant grade, avoids the risk of delayed combustion, and is flexible and convenient to construct on site.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power materials, and in particular relates to a super-adhesive moisture-proof and fire-proof sealing adhesive sticker. Background Art

[0002] Sealing stickers are used to plug holes, seal gaps and prevent moisture in power equipment. The material of the stickers needs to have good sealing properties, which can effectively block holes and gaps to prevent the intrusion of moisture and water vapor. At the same time, the stickers need to have good adhesion properties and can be firmly bonded to the surface of power equipment without falling off or deforming. Through surface treatment and the adhesion design of the stickers themselves, it is ensured that they can be stably adhered to the equipment for a long time. In addition to being moisture-proof, the stickers also need to have certain fire-proof properties, and can be non-combustible or difficult to burn in high temperature environments, to avoid damage to the equipment caused by fire.

[0003] Therefore, there is an urgent need for a super-sticky moisture-proof and fire-proof sealing adhesive sticker that can be effectively applied to the moisture-proof needs of various power equipment to improve the reliability and safety of the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a super-sticky moisture-proof and fire-proof sealing adhesive tape, which is used to solve the technical problem that the sealing adhesive tape in the prior art has poor flame retardancy, moisture resistance and wear resistance.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The invention provides a super-sticky moisture-proof and fireproof sealing adhesive patch. The super-sticky moisture-proof and fireproof sealing adhesive patch uses a PET film as a PET substrate, a wear-resistant layer is attached to one side of the PET substrate, and an adhesive layer is adhered to the other side. The PET substrate specifically comprises the following components by weight: 80-100 parts of PET particles, 2-5 parts of acrylonitrile-butadiene-styrene copolymer, 5-8 parts of flame retardant, 0.5-1.5 parts of nano-silicon dioxide, 1-2 parts of filling microfibers, and 1-2 parts of isopropyl tri(dodecylbenzenesulfonyl) titanate; The adhesive of the adhesive layer specifically comprises the following components by weight: 20-40 parts of methyl vinyl silicone rubber, 5-15 parts of rubber elastomer, 5-15 parts of tackifying resin, 20-40 parts of flame retardant, 30-50 parts of filler, and 3-5 parts of plant essential oil microcapsules.

[0006] Preferably, the flame retardant is compounded from magnesium hydroxide, aluminum hydroxide and aluminum borate in a mass ratio of 1:1:(0.5-1.5).

[0007] Preferably, the filler is nano-calcium carbonate; the tackifying resin is acrylic rubber; and the rubber elastomer is butyl rubber.

[0008] Preferably, the method for preparing the filled microfibers comprises the following steps: S1: soak 2-4 kg of plant fiber in 4-6 wt% NaOH solution for 25-35 min, wash with water until neutral, dry at 50-70 ° C to constant weight, and crush to obtain alkali-treated plant microfibers; S2: adding ethanol to water at a mass ratio of 9:1 to obtain an ethanol solution, then adding 2 wt % of 3-aminopropyltriethoxysilane, stirring at room temperature at a speed of 1200-1800 rpm for 25-35 min to obtain a silane coupling agent solution; S3: soaking 1-2 kg of alkali-treated plant microfibers in the mixed solution at a bath ratio of 1:40 for 25-35 min, taking them out, and drying them at 50-70° C. to constant weight to obtain coupling agent-treated plant microfibers; S4: adding 0.3-0.7wt% of hydroxylated multi-walled carbon nanotubes to the silane coupling agent solution prepared in S2, stirring at a speed of 1200-1800rpm for 15-25min, then adding 0.3-0.7wt% of polyvinyl pyrrolidone, stirring at a speed of 1200-1800rpm for 15-25min, and then treating at a constant temperature of 50-70°C for 3-5h to obtain a carbon nanotube suspension modified by a silane coupling agent; S5: spraying the carbon nanotube suspension modified by the silane coupling agent evenly on the coupling agent treated plant microfibers, repeating the spraying and volatilization alternately for 3-5 times, and drying at 50-70° C. to constant weight to obtain filled microfibers.

[0009] Preferably, the plant fiber is palm fiber.

[0010] Through the above technical scheme, after the palm fiber is treated with 3-aminopropyltriethoxysilane silane coupling agent and multi-walled carbon nanotubes, a cross-linked film is formed and multi-walled carbon nanotubes are evenly distributed on the surface, which improves the antioxidant performance and reduces water absorption; the polar groups react with the hydroxyl groups on the surface of the palm fiber, and the non-polar groups cross-link with the resin matrix, which is beneficial to improve the interfacial bonding performance between the palm fiber and the polymer PET matrix, and is added to the PET matrix to improve the mechanical properties of the super-sticky moisture-proof and fire-proof sealing tape.

[0011] Preferably, the wear-resistant layer is obtained by coating a hydrophobic wear-resistant coating solution on one side of a PET substrate.

[0012] Preferably, the method for preparing the hydrophobic wear-resistant coating solution comprises the following steps: P1: Add 40-80 g of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane to 0.44-0.88 mL of 2.0 mol / L ammonia water, stir vigorously at 75-85° C. for 1-2 h, and vacuum dry to remove the alkaline aqueous solution to obtain a highly viscous liquid; P2: Mix 20-40g of high viscosity liquid with 6.6-13.2g of acrylic resin and stir for 25-35min, then add 1-3g of phthalic anhydride, then add 10-20mL of dichloromethane, and then add 0.4-0.8g of triarylsulfonium hexafluorophosphate, stir at room temperature for 0.5-1.5h to obtain a wear-resistant coating solution.

[0013] The structural formula of the wear-resistant coating is as follows:

[0014] Preferably, the preparation method of the adhesive of the adhesive layer comprises the following steps: adding 20-40 parts of methyl vinyl silicone rubber, 5-15 parts of rubber elastomer, 5-15 parts of tackifying resin, 20-40 parts of flame retardant, 30-50 parts of filler, and 3-5 parts of plant essential oil microcapsules into an internal mixer for internal mixing, then placing the mixed adhesive into a vacuum mixer to remove bubbles in the adhesive, and obtaining the adhesive of the adhesive layer after extrusion molding.

[0015] Preferably, the method for preparing the essential oil microcapsules comprises the following steps: A1: Add sodium bentonite into water and stir for 12-24 hours to obtain a 3-5wt% sodium bentonite dispersion; A2: Add the plant essential oil to a 3-5wt% sodium bentonite dispersion and stir for 12-24h to obtain a sodium bentonite essential oil emulsion. Then, mix the sodium bentonite essential oil emulsion with a 0.5-1.5wt% sodium alginate solution in a volume ratio of 1:2, stir for 4-6h, add dropwise to a 0.05-0.15mol / L calcium chloride solution, and treat under magnetic stirring for 50-70min to obtain the plant essential oil microcapsules.

[0016] Preferably, the plant essential oil is compounded by rosemary essential oil and eucalyptus essential oil in a mass ratio of 1-1.5:2-3.

[0017] Preferably, the mass fraction of plant essential oil in the sodium bentonite essential oil emulsion is 1-3wt%.

[0018] Preferably, the method for preparing the super-adhesive moisture-proof and fire-proof sealing adhesive tape comprises the following steps: Step (1) 80-100 parts of PET particles, 2-5 parts of acrylonitrile-butadiene-styrene copolymer, 5-8 parts of flame retardant, 0.5-1.5 parts of nano-silicon dioxide, 1-2 parts of filling microfibers and 1-2 parts of isopropyl tri(dodecylbenzenesulfonyl) titanate are mixed uniformly, and extruded through an extruder to obtain a PET substrate layer; Step (2) performing a single-side corona treatment on the PET substrate layer; Step (3) casting the hydrophobic wear-resistant coating solution on the corona side of the PET substrate layer with a coating applicator, baking at 65-75° C. for 15-25 min, irradiating with an ultraviolet lamp with a wavelength of 365 nm for 25-35 min, and heating at 135-145° C. for 25-35 min to obtain a wear-resistant PET substrate; Step (4) coating the uncoated side of the wear-resistant PET substrate obtained in step (3) with an adhesive to obtain an adhesive layer, then laminating a light release protective film on the adhesive layer, and then cutting it into a super-adhesive moisture-proof and fire-proof sealing adhesive sticker.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The plant essence microcapsules specially added in the present invention have good encapsulation efficiency for essential oils, and have good thermal stability and sustained release effect; rosemary essential oil and eucalyptus essential oil are effective in repelling many insects such as mosquitoes, flies and ants, and have a good repellent effect on mice through compounding. They are developed for rats and insects, have long-term insect repellency, do not contain pesticides, and achieve the purpose of repelling rats and insects by making the rats and insects feel uncomfortable through volatile odors.

[0020] 2. The present invention cross-links cycloaliphatic epoxy-functionalized oligosiloxane and hydroxyl-functionalized acrylic polymer with phthalic anhydride. First, ultraviolet irradiation is used to initiate the ring-opening polymerization of the high-viscosity liquid epoxy ring, and then the epoxy ring, the hydroxyl group of the acrylic resin, and the anhydride group of the phthalic anhydride are thermally cured to synthesize a highly cross-linked, high-hardness, flexible organic-inorganic coating network that can be cured by ultraviolet light; the thermally cured acrylic polymer and phthalic anhydride are used as cross-linking agents to improve flexibility and hardness at the same time, and the two different curable materials are mixed to maximize the coating performance through the synergistic effect of different curing characteristics; the coating forms a highly condensed siloxane network with excellent glass-like hardness, and the hybrid bond exhibits high strength and flexibility by covalently bonding the flexible organic polymer to the rigid inorganic network; at the same time, a dual-curing process is introduced, low-energy ultraviolet irradiation is used to initiate the reaction, and then a coating with flexibility and high hardness is successfully prepared through a thermal curing reaction to improve the wear resistance of the adhesive patch, and the coating has good hydrophobicity, which improves the moisture-proof effect of the adhesive patch as a whole.

[0021] 3. The present invention improves the flame retardancy of the adhesive tape by adding flame retardants. When PET burns, aluminum hydroxide and magnesium hydroxide will release water vapor, absorb heat, reduce flame temperature, and slow down the flame spread to achieve a flame retardant effect. Aluminum hydroxide is dispersed in the matrix in the form of solid particles, and can form a protective layer during combustion to slow down the flame propagation rate. The high specific surface area of ​​aluminum hydroxide can promote the carbonization reaction of PET during combustion to form a carbon layer, which covers the surface of the material to play a heat-insulating, insulating and flame-retardant role. Aluminum borate will undergo a chemical reaction during combustion to produce a gas phase compound containing boron and aluminum, which will inhibit the free radical reaction during the combustion process and slow down the flame spread. At the same time, a protective film can be formed on the surface of the material to prevent air and heat from entering the interior of the material, thereby reducing the oxygen supply during the combustion process to achieve a flame retardant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The present invention is a process flow chart of the preparation of the super-adhesive moisture-proof and fire-proof sealing adhesive tape. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0025] Example 1 This embodiment discloses a method for preparing filled microfibers, comprising the following steps: S1: 3 kg of palm fiber was soaked in 5 wt% NaOH solution for 30 min, washed with water until neutral, dried at 60 °C to constant weight, and crushed to obtain alkali-treated plant microfibers; S2: adding ethanol to water at a mass ratio of 9:1 to obtain an ethanol solution, then adding 2 wt % of 3-aminopropyltriethoxysilane, stirring at room temperature at a speed of 1600 rpm for 30 min to obtain a silane coupling agent solution; S3: 1.5 kg of alkali-treated plant microfibers were immersed in the mixed solution at a bath ratio of 1:40 for 30 min, then taken out and dried at 60° C. to constant weight to obtain coupling agent-treated plant microfibers; S4: adding 0.5 wt% of hydroxylated multi-walled carbon nanotubes to the silane coupling agent solution prepared in S2, stirring at a speed of 1500 rpm for 20 min, then adding 0.5 wt% of polyvinyl pyrrolidone, stirring at a speed of 1500 rpm for 20 min, and then treating at a constant temperature of 60° C. for 4 h to obtain a carbon nanotube suspension modified by a silane coupling agent; S5: spraying the carbon nanotube suspension modified by the silane coupling agent evenly on the coupling agent treated plant microfibers, repeating the spraying and volatilization alternately for 4 times, and drying at 35° C. to constant weight to obtain filled microfibers.

[0026] Example 2 This embodiment discloses a method for preparing a hydrophobic wear-resistant coating solution, comprising the following steps: P1: Add 60 g of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane to 0.66 mL of 2.0 mol / L ammonia water, stir vigorously at 80 °C for 1.5 h, and vacuum dry to remove the alkaline aqueous solution to obtain a highly viscous liquid; P2: 30 g of high viscosity liquid was mixed with 9.9 g of acrylic resin and stirred for 30 min, then 2 g of phthalic anhydride was added, followed by 15 mL of dichloromethane, and then 0.6 g of triarylsulfonium hexafluorophosphate was added, and stirred at room temperature for 1 h to obtain a wear-resistant coating solution.

[0027] Example 3 This embodiment discloses a method for preparing essential oil microcapsules, comprising the following steps: A1: sodium bentonite was added into water and stirred for 18 h to obtain a 4 wt% sodium bentonite dispersion; A2: Add the plant essential oil to a 4wt% sodium bentonite dispersion and stir for 18h to obtain a sodium bentonite essential oil emulsion. Then mix the sodium bentonite essential oil emulsion with a 1wt% sodium alginate solution in a volume ratio of 1:2, stir for 5h, add dropwise to a 0.1mol / L calcium chloride solution, and treat under magnetic stirring for 60min to obtain the plant essential oil microcapsules.

[0028] The plant essential oil is prepared by compounding rosemary essential oil and eucalyptus essential oil in a mass ratio of 1.2:2.5.

[0029] The mass fraction of plant essential oil in the sodium bentonite essential oil emulsion is 2wt%.

[0030] Example 4 This embodiment discloses a method for preparing an adhesive for an adhesive layer, comprising the following steps: 30 g of methyl vinyl silicone rubber, 10 g of rubber elastomer, 10 g of tackifying resin, 30 g of flame retardant, 40 g of filler, and 4 g of plant essential oil microcapsules are added into an internal mixer for internal mixing, and then the mixed adhesive is put into a vacuum mixer to remove bubbles in the adhesive, and after extrusion molding, an adhesive for the adhesive layer is obtained.

[0031] The filler is nano calcium carbonate; the tackifying resin is acrylic rubber; and the rubber elastomer is butyl rubber.

[0032] The flame retardant is prepared by compounding magnesium hydroxide, aluminum hydroxide and aluminum borate in a mass ratio of 1:1:1.

[0033] Example 5 See also Figure 1 As shown, this embodiment discloses a method for preparing a super-adhesive moisture-proof and fire-proof sealing adhesive tape, comprising the following steps: Step (1) 90 parts of PET particles, 3.5 parts of acrylonitrile-butadiene-styrene copolymer, 6.5 parts of flame retardant, 1 part of nano-silicon dioxide, 1.5 parts of filling microfibers prepared in Example 1 and 1.5 parts of isopropyl tri(dodecylbenzenesulfonyl) titanate are mixed uniformly, and extruded through an extruder to obtain a PET substrate layer; Step (2) performing a single-side corona treatment on the PET substrate layer; Step (3) casting the hydrophobic wear-resistant coating solution prepared in Example 2 on the corona side of the PET substrate layer using a coating applicator, baking at 70° C. for 20 min, irradiating with an ultraviolet lamp with a wavelength of 365 nm for 30 min, and heating at 140° C. for 30 min to obtain a wear-resistant PET substrate; Step (4) coating the uncoated side of the wear-resistant PET substrate obtained in step (3) with an adhesive to obtain an adhesive layer, then laminating a light release protective film on the adhesive layer, and then cutting it into a super-adhesive moisture-proof and fire-proof sealing adhesive sticker.

[0034] The flame retardant is prepared by compounding magnesium hydroxide, aluminum hydroxide and aluminum borate in a mass ratio of 1:1:1.

[0035] Example 6 See also Figure 1 As shown, this embodiment discloses a method for preparing a super-adhesive moisture-proof and fire-proof sealing adhesive tape, comprising the following steps: Step (1) 80 parts of PET particles, 5 parts of acrylonitrile-butadiene-styrene copolymer, 5 parts of flame retardant, 1.5 parts of nano-silicon dioxide, 1 part of the filling microfiber prepared in Example 1 and 2 parts of isopropyl tri(dodecylbenzenesulfonyl) titanate are mixed uniformly, and extruded through an extruder to obtain a PET substrate layer; Step (2) performing a single-side corona treatment on the PET substrate layer; Step (3) casting the hydrophobic wear-resistant coating solution prepared in Example 2 on the corona side of the PET substrate layer using a coating applicator, baking at 65° C. for 25 min, irradiating with an ultraviolet lamp with a wavelength of 365 nm for 25 min, and heating at 145° C. for 25 min to obtain a wear-resistant PET substrate; Step (4) coating the uncoated side of the wear-resistant PET substrate obtained in step (3) with an adhesive to obtain an adhesive layer, then laminating a light release protective film on the adhesive layer, and then cutting it into a super-adhesive moisture-proof and fire-proof sealing adhesive sticker.

[0036] The flame retardant is prepared by compounding magnesium hydroxide, aluminum hydroxide and aluminum borate in a mass ratio of 1:1:1.5.

[0037] Example 7 See also Figure 1 As shown, this embodiment discloses a method for preparing a super-adhesive moisture-proof and fire-proof sealing adhesive tape, comprising the following steps: Step (1) 100 parts of PET particles, 2 parts of acrylonitrile-butadiene-styrene copolymer, 8 parts of flame retardant, 0.5 parts of nano-silicon dioxide, 2 parts of filling microfibers prepared in Example 1 and 1 part of isopropyl tri(dodecylbenzenesulfonyl) titanate are mixed uniformly, and extruded through an extruder to obtain a PET substrate layer; Step (2) performing a single-side corona treatment on the PET substrate layer; Step (3) casting the hydrophobic wear-resistant coating solution prepared in Example 2 on the corona side of the PET substrate layer using a coating applicator, baking at 75° C. for 15 min, irradiating with an ultraviolet lamp with a wavelength of 365 nm for 35 min, and heating at 135° C. for 35 min to obtain a wear-resistant PET substrate; Step (4) coating the uncoated side of the wear-resistant PET substrate obtained in step (3) with an adhesive to obtain an adhesive layer, then laminating a light release protective film on the adhesive layer, and then cutting it into a super-adhesive moisture-proof and fire-proof sealing adhesive sticker.

[0038] The flame retardant is prepared by compounding magnesium hydroxide, aluminum hydroxide and aluminum borate in a mass ratio of 1:1:0.5.

[0039] Example 8 See also Figure 1 As shown, this embodiment discloses a method for preparing a super-adhesive moisture-proof and fire-proof sealing adhesive tape, comprising the following steps: Step (1) 85 parts of PET particles, 4 parts of acrylonitrile-butadiene-styrene copolymer, 6 parts of flame retardant, 1.2 parts of nano-silicon dioxide, 1.2 parts of filling microfibers prepared in Example 1 and 1.8 parts of isopropyl tri(dodecylbenzenesulfonyl) titanate are mixed uniformly, and extruded through an extruder to obtain a PET substrate layer; Step (2) performing a single-side corona treatment on the PET substrate layer; Step (3) casting the hydrophobic wear-resistant coating solution prepared in Example 2 on the corona side of the PET substrate layer using a coating applicator, baking at 68°C for 22 minutes, irradiating with an ultraviolet lamp with a wavelength of 365nm for 28 minutes, and heating at 140°C for 28 minutes to obtain a wear-resistant PET substrate; Step (4) coating the uncoated side of the wear-resistant PET substrate obtained in step (3) with an adhesive to obtain an adhesive layer, then laminating a light release protective film on the adhesive layer, and then cutting it into a super-adhesive moisture-proof and fire-proof sealing adhesive sticker.

[0040] The flame retardant is prepared by compounding magnesium hydroxide, aluminum hydroxide and aluminum borate in a mass ratio of 1:1:1.2.

[0041] Example 9 See also Figure 1 As shown, this embodiment discloses a method for preparing a super-adhesive moisture-proof and fire-proof sealing adhesive tape, comprising the following steps: Step (1) 95 parts of PET particles, 3 parts of acrylonitrile-butadiene-styrene copolymer, 7 parts of flame retardant, 0.8 parts of nano-silicon dioxide, 1.8 parts of filling microfibers prepared in Example 1 and 1.2 parts of isopropyl tri(dodecylbenzenesulfonyl) titanate are mixed uniformly, and extruded through an extruder to obtain a PET substrate layer; Step (2) performing a single-side corona treatment on the PET substrate layer; Step (3) casting the hydrophobic wear-resistant coating solution prepared in Example 2 on the corona side of the PET substrate layer using a coating applicator, baking at 72° C. for 17 min, irradiating with an ultraviolet lamp with a wavelength of 365 nm for 32 min, and heating at 138° C. for 32 min to obtain a wear-resistant PET substrate; Step (4) coating the uncoated side of the wear-resistant PET substrate obtained in step (3) with an adhesive to obtain an adhesive layer, then laminating a light release protective film on the adhesive layer, and then cutting it into a super-adhesive moisture-proof and fire-proof sealing adhesive sticker.

[0042] The flame retardant is prepared by compounding magnesium hydroxide, aluminum hydroxide and aluminum borate in a mass ratio of 1:1:0.8.

[0043] Comparative Example 1 Compared with Example 5, in the process of preparing the super-adhesive moisture-proof and fire-proof sealing tape in Comparative Example 1, step (3) is omitted, that is, there is no wear-resistant layer on one side of the PET substrate, and other conditions remain unchanged.

[0044] Comparative Example 2 Compared with Example 5, in Comparative Example 2, during the preparation of the super-adhesive moisture-proof and fire-proof sealing adhesive tape, no filling microfibers were added, and other conditions remained unchanged.

[0045] Comparative Example 3 Comparative Example 3 Compared with Example 5, in the process of preparing the super-sticky moisture-proof and fire-proof sealing tape in Comparative Example 3, no flame retardant was added to the PET substrate, and other conditions remained unchanged.

[0046] Comparative Example 4 Comparative Example 4 Compared with Example 5, in the process of preparing the super-sticky moisture-proof and fire-proof sealing adhesive tape in Comparative Example 4, no plant microcapsules were added to the adhesive of the adhesive layer, and other conditions remained unchanged.

[0047] Experimental example The performance of the super-adhesive moisture-proof and fire-proof sealing adhesive tapes prepared in Examples 5-9 and Comparative Examples 1-4 was tested.

[0048]

[0049] It can be seen from Table 1 that the super-sticky moisture-proof and fireproof sealing stickers prepared in Examples 5-9 have good waterproof, moisture-proof, flame-retardant and wear-resistant properties; from the comparison between Comparative Example 1 and Example 5, it can be seen that in the process of preparing the super-sticky moisture-proof and fireproof sealing sticker, the wear-resistant layer is added to make the super-sticky moisture-proof and fireproof sealing sticker have good performance; from the comparison between Comparative Example 2 and Example 5, it can be seen that in the process of preparing the super-sticky moisture-proof and fireproof sealing sticker, the filling microfiber is added to make the super-sticky moisture-proof and fireproof sealing sticker have good performance; from the comparison between Comparative Example 3 and Example 5, it can be seen that in the process of preparing the super-sticky moisture-proof and fireproof sealing sticker, the flame retardant is added to make the super-sticky moisture-proof and fireproof sealing sticker have good performance; from the comparison between Comparative Example 4 and Example 5, it can be seen that in the process of preparing the super-sticky moisture-proof and fireproof sealing sticker, the plant microcapsules are added to make the super-sticky moisture-proof and fireproof sealing sticker have good performance.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0051] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A super-sticky moisture-proof and fire-proof sealing adhesive sticker, characterized in that: The super-adhesive moisture-proof and fire-proof sealing adhesive tape uses a PET film as a PET substrate, a wear-resistant layer is attached to one side of the PET substrate, and an adhesive layer is adhered to the other side. The PET substrate specifically comprises the following components by weight: 80-100 parts of PET particles, 2-5 parts of acrylonitrile-butadiene-styrene copolymer, 5-8 parts of flame retardant, 0.5-1.5 parts of nano-silicon dioxide, 1-2 parts of filling microfibers, and 1-2 parts of isopropyl tri(dodecylbenzenesulfonyl) titanate; The adhesive of the adhesive layer specifically comprises the following components by weight: 20-40 parts of methyl vinyl silicone rubber, 5-15 parts of rubber elastomer, 5-15 parts of tackifying resin, 20-40 parts of flame retardant, 30-50 parts of filler, and 3-5 parts of plant essential oil microcapsules.

2. The super-adhesive moisture-proof and fire-proof sealing adhesive sticker according to claim 1, characterized in that: The flame retardant is compounded from magnesium hydroxide, aluminum hydroxide and aluminum borate in a mass ratio of 1:1:(0.5-1.5); the filler is nano calcium carbonate; the tackifying resin is acrylic rubber; and the rubber elastomer is butyl rubber.

3. The super-adhesive moisture-proof and fire-proof sealing adhesive sticker according to claim 1, characterized in that: The method for preparing the filled microfibers comprises the following steps: S1: soak 2-4 kg of plant fiber in 4-6 wt% NaOH solution for 25-35 min, wash with water until neutral, dry at 50-70 ° C to constant weight, and crush to obtain alkali-treated plant microfibers; S2: adding ethanol to water at a mass ratio of 9:1 to obtain an ethanol solution, then adding 2 wt % of 3-aminopropyltriethoxysilane, stirring at room temperature at a speed of 1200-1800 rpm for 25-35 min to obtain a silane coupling agent solution; S3: soaking 1-2 kg of alkali-treated plant microfibers in the mixed solution at a bath ratio of 1:40 for 25-35 min, taking them out, and drying them at 50-70° C. to constant weight to obtain coupling agent-treated plant microfibers; S4: adding 0.3-0.7wt% of hydroxylated multi-walled carbon nanotubes to the silane coupling agent solution prepared in S2, stirring at a speed of 1200-1800rpm for 15-25min, then adding 0.3-0.7wt% of polyvinyl pyrrolidone, stirring at a speed of 1200-1800rpm for 15-25min, and then treating at a constant temperature of 50-70°C for 3-5h to obtain a carbon nanotube suspension modified by a silane coupling agent; S5: spraying the carbon nanotube suspension modified by the silane coupling agent uniformly on the alkali-treated plant microfibers, repeating the spraying and volatilization alternately for 3-5 times, and drying at 50-70° C. to constant weight to obtain filled microfibers.

4. The super-adhesive moisture-proof and fire-proof sealing adhesive tape according to claim 3, characterized in that: The plant fiber is palm fiber.

5. The super-adhesive moisture-proof and fire-proof sealing adhesive sticker according to claim 1, characterized in that: The wear-resistant layer is obtained by coating a hydrophobic wear-resistant coating solution on one side of a PET substrate.

6. The super-adhesive moisture-proof and fire-proof sealing adhesive tape according to claim 5, characterized in that: The method for preparing the hydrophobic wear-resistant coating solution comprises the following steps: P1: Add 40-80 g of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane to 0.44-0.88 mL of 2.0 mol / L ammonia water, stir vigorously at 75-85° C. for 1-2 h, and vacuum dry to remove the alkaline aqueous solution to obtain a highly viscous liquid; P2: Mix 20-40g of high viscosity liquid with 6.6-13.2g of acrylic resin and stir for 25-35min, then add 1-3g of phthalic anhydride, then add 10-20mL of dichloromethane, and then add 0.4-0.8g of triarylsulfonium hexafluorophosphate, stir at room temperature for 0.5-1.5h to obtain a wear-resistant coating solution.

7. The super-adhesive moisture-proof and fire-proof sealing adhesive tape according to claim 1, characterized in that: The preparation method of the adhesive of the adhesive layer comprises the following steps: adding 20-40 parts of methyl vinyl silicone rubber, 5-15 parts of rubber elastomer, 5-15 parts of tackifying resin, 20-40 parts of flame retardant, 30-50 parts of filler and 3-5 parts of plant essential oil microcapsules into an internal mixer for internal mixing, then putting the mixed adhesive into a vacuum mixer to remove bubbles in the adhesive, and extruding and molding to obtain the adhesive of the adhesive layer.

8. The super-adhesive moisture-proof and fire-proof sealing adhesive tape according to claim 1, characterized in that: The preparation method of the essential oil microcapsules comprises the following steps: A1: Add sodium bentonite into water and stir for 12-24 hours to obtain a 3-5wt% sodium bentonite dispersion; A2: Add the plant essential oil to a 3-5wt% sodium bentonite dispersion and stir for 12-24h to obtain a sodium bentonite essential oil emulsion. Then, mix the sodium bentonite essential oil emulsion with a 0.5-1.5wt% sodium alginate solution in a volume ratio of 1:2, stir for 4-6h, add dropwise to a 0.05-0.15mol / L calcium chloride solution, and treat under magnetic stirring for 50-70min to obtain the plant essential oil microcapsules.

9. The super-adhesive moisture-proof and fire-proof sealing adhesive tape according to claim 8, characterized in that: The plant essential oil is prepared by compounding rosemary essential oil and eucalyptus essential oil in a mass ratio of 1-1.5:2-3; the mass fraction of the plant essential oil in the sodium bentonite essential oil emulsion is 1-3wt%.

10. The super-adhesive moisture-proof and fire-proof sealing adhesive tape according to claim 1, characterized in that: The preparation method of the super-adhesive moisture-proof and fire-proof sealing adhesive tape comprises the following steps: Step (1) 80-100 parts of PET particles, 2-5 parts of acrylonitrile-butadiene-styrene copolymer, 5-8 parts of flame retardant, 0.5-1.5 parts of nano-silicon dioxide, 1-2 parts of filling microfibers and 1-2 parts of isopropyl tri(dodecylbenzenesulfonyl) titanate are mixed uniformly, and extruded through an extruder to obtain a PET substrate layer; Step (2) performing a single-side corona treatment on the PET substrate layer; Step (3) casting the hydrophobic wear-resistant coating solution on the corona side of the PET substrate layer with a coating applicator, baking at 65-75° C. for 15-25 min, irradiating with an ultraviolet lamp with a wavelength of 365 nm for 25-35 min, and heating at 135-145° C. for 25-35 min to obtain a wear-resistant PET substrate; Step (4) coating the uncoated side of the wear-resistant PET substrate obtained in step (3) with an adhesive to obtain an adhesive layer, then laminating a light release protective film on the adhesive layer, and then cutting it into a super-adhesive moisture-proof and fire-proof sealing adhesive sticker.

Images