Antibacterial dust-binding product and method of making

Abstract

The application discloses an antibacterial dust-sticking product and a preparation method thereof, and relates to the technical field of antibacterial products. The antibacterial dust-sticking product and the preparation method thereof have the advantages that the adhesive force of the adhesive tape is improved, long-acting antibacterial performance is endowed, static conduction is effectively eliminated through an antistatic coating, the problems of low adhesive force, poor antibacterial effect and low use comfort of traditional cleaning tools are solved, and the adhesive stability of the adhesive tape is improved, the antibacterial performance is enhanced, and the use comfort is improved.

Description

Technical Field

[0001] This invention relates to the field of antibacterial products technology, and in particular to an antibacterial adhesive product and its preparation method. Background Technology

[0002] Dust mites are a common household allergen. They thrive in warm, humid environments and typically hide in sheets, duvet covers, pillows, and mattresses. Effective mite control methods include reducing indoor humidity, washing and airing with hot water, regular dusting, and using mite-proof bedding. A lint roller is a tool specifically designed for cleaning and hygiene, especially suitable for environments requiring high cleanliness, such as homes, hospitals, or laboratories. Handheld lint rollers are designed for ease of use, allowing users to easily remove dust, pathogenic bacteria, and other contaminants, thus maintaining environmental hygiene and personal health. However, ordinary lint rollers currently on the market are not very effective at removing mites, dust, and microorganisms, and during use, they easily conduct static electricity from sofas and sheets to the user's hands, resulting in a poor cleaning experience. Summary of the Invention

[0003] The main objective of this invention is to develop an antibacterial adhesive product that improves the adhesive stability of tape, enhances its antibacterial properties, and improves user comfort.

[0004] To achieve the above objectives, the present invention provides an antibacterial adhesive product, comprising an antibacterial adhesive mat or an antibacterial adhesive roller. The antibacterial adhesive mat comprises multiple easily tearable units stacked together, or the antibacterial adhesive roller comprises multiple easily tearable units wound together. Each easily tearable unit comprises a substrate layer and an adhesive layer stacked sequentially. The adhesive layer comprises a first adhesive layer and a second adhesive layer stacked sequentially, with the first adhesive layer attached to one surface of the substrate layer. The first adhesive layer comprises the following raw materials by weight percentage: polyurethane acrylate: 15wt%~25wt%; thermoplastic elastomer: 2wt%~5wt%; acrylate monomer: 22wt%~38wt%; initiator: 0.5wt%~0.8wt%; antioxidant: 0.5wt%~1wt%; and the balance being solvent. The second adhesive layer is formed from a polyurethane-based adhesive.

[0005] In one embodiment, the substrate layer is selected from any one of polylactic acid film, polybutylene succinate film, polyhydroxybutyrate film, polyethylene film, polypropylene film, OPP film, pearlescent film, and cast film.

[0006] In one embodiment, the acrylate monomers comprise soft monomers, hard monomers, and functional monomers in a weight ratio of (30~40):(6~9):(3~5).

[0007] In one specific embodiment, the soft monomer includes at least one of 2-ethylhexyl acrylate, n-butyl acrylate, and tetrahydrofuran acrylate; and / or, the hard monomer includes at least one of methyl methacrylate, vinyl acetate, and cyclohexyl methacrylate; and / or, the functional monomer includes at least one of dimethylaminoethyl methacrylate and glycidyl methacrylate.

[0008] In one embodiment, the polyurethane-based adhesive comprises the following raw materials by weight percentage:

[0009] Polycarbonate diol: 9wt%~16wt%; diisocyanate: 12wt%~20wt%; dimethylolpropionic acid: 3wt%~7wt%; modified carbon nanotubes: 2wt%~3.8wt%; catalyst: 0.8wt%~1.5wt%; preservative and mildew inhibitor: 1.5wt%~2.5wt%; antioxidant: 0.5wt%~1wt%; plant essential oil: 2wt%~6wt%; and the balance being solvent.

[0010] In one embodiment, the modified carbon nanotubes are prepared by grafting carbon nanotubes with a modifier; the modifier includes at least one of dimethyldiethylammonium chloride and N,N'-di(2-mercaptoethyl)isophthalamide.

[0011] The present invention also proposes a method for preparing the above-mentioned cleaning roller, comprising the following steps: S1. Add thermoplastic elastomer and solvent to reaction vessel, heat and stir until solution is clear; then add polyurethane-based acrylate, acrylate monomer and antioxidant, stir, degas under vacuum, add initiator, stir reaction, filter and take filtrate to obtain the first adhesive. S2. The first adhesive obtained in step S1 is coated onto the surface of the substrate layer to form a wet film, dried, and cured to obtain the first adhesive layer. S3. Coat the surface of the first adhesive layer obtained in step S2 with a polyurethane-based adhesive, dry and cure it to form a second adhesive layer; cut it into multiple tear-resistant units, and machine it into antibacterial adhesive mats or antibacterial adhesive rollers to complete the preparation of the antibacterial adhesive product.

[0012] This application provides a cleaning roller and its preparation method. Through the design of a composite adhesive layer structure and a specific component ratio, it not only improves the adhesion of the tape but also imparts long-lasting antibacterial properties. Furthermore, through the antistatic coating and conductive particles in the adhesive layer, it effectively eliminates static electricity conduction, solving the problems of insufficient adhesion, poor antibacterial effect, and low user comfort of traditional cleaning tools. It has the advantages of improving the adhesive stability of the tape, enhancing antibacterial properties, and improving user comfort. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0014] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0015] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0016] In existing technologies, dust mites, a common household allergen, often lurk in textiles such as bed sheets and duvet covers. Traditional lint rollers have limited effectiveness in removing microorganisms and are prone to generating static electricity due to insufficient antibacterial properties and poor conductivity of the adhesive. Conventional cleaning tools use a single adhesive layer structure, which cannot balance the needs of adhesion and antistatic properties. During use, the adhesive layer is prone to leaving contaminants and is difficult to peel off and replace.

[0017] To address the aforementioned issues, considering the insufficient antibacterial properties of adhesives, we are exploring the introduction of nanomaterials with broad-spectrum bactericidal effects; to address the issue of static electricity accumulation, we are exploring embedding conductive media within the adhesive layer to dissipate charge; and to solve the difficulty in peeling off the adhesive layer, we are designing an easy-tear structure that can be separated in segments. By analyzing the influence and role of adhesive components on adhesion performance, we are combining a first adhesive layer with better toughness and a second adhesive layer with high adhesion strength, enabling the adhesive layer to possess both high adhesion and low residue, thereby further improving the user experience.

[0018] This invention proposes an antibacterial adhesive product, which is an antibacterial adhesive roller, including a core and a cleaning tape wound around the outside of the core. The cleaning tape includes multiple connected easy-tear units, and the easy-tear units are connected by easy-tear lines.

[0019] This invention proposes another antibacterial adhesive dust product, which is an antibacterial adhesive dust mat, comprising multiple easy-tear units stacked sequentially, with the easy-tear units being completely aligned and stacked, and the substrate layer of the previous easy-tear unit being bonded to the adhesive layer of the adjacent easy-tear unit.

[0020] Furthermore, the easy-tear unit comprises a substrate layer and an adhesive layer stacked sequentially, the adhesive layer comprising a first adhesive layer and a second adhesive layer stacked sequentially, and the first adhesive layer being attached to the substrate layer; wherein, the first adhesive layer comprises the following raw materials by weight percentage: polyurethane-based acrylate: 15wt%~25wt%; thermoplastic elastomer: 2wt%~5wt%; acrylate monomer: 22wt%~38wt%; initiator: 0.5wt%~0.8wt%; antioxidant: 0.5wt%~1wt%; and the balance being solvent; the second adhesive layer is formed of polyurethane-based adhesive.

[0021] Specifically, easy-tear units are layered or strip-shaped structures with adhesive properties, and can be supported by polymer films such as polypropylene films as the substrate layer. Easy-tear lines refer to weakened structures that facilitate the separation of adjacent easy-tear units, which can be achieved through laser etching or indentation processes. The substrate layer is the basic material layer that carries the adhesive, and can be made of polylactic acid film to achieve biodegradability. The first adhesive layer is the intermediate layer that bonds the substrate layer and the second adhesive layer. It does not directly contact the surface to be cleaned. It forms a three-dimensional network structure through the copolymerization of polyurethane-based acrylate and acrylate monomers, thereby further increasing the crosslinking density of the material. A small amount of thermoplastic elastomer further enhances the toughening effect, making the first adhesive layer flexible yet not easily torn.

[0022] Furthermore, the substrate layer serves as a support carrier coated with the first adhesive layer. In this adhesive layer, polyurethane-based acrylate provides a flexible framework, thermoplastic elastomers enhance cohesive strength, and acrylate monomers are polymerized by an initiator to form a cross-linked network. The second adhesive layer directly contacts the object to be cleaned, capturing dust and mites through adhesion. Simultaneously, conductive particles within it continuously discharge static electricity to prevent charge accumulation. After use, the contaminated section can be torn along the easy-tear line to expose the new adhesive layer.

[0023] In one specific embodiment, the second adhesive layer in the easy-tear unit also covers the outer periphery of the first adhesive layer and the outer periphery of the substrate layer, thereby connecting the second adhesive layer with the antistatic coating on the other surface of the substrate layer, so that the conductive particles in the second adhesive layer can dissipate static electricity in a timely manner after discharging static electricity.

[0024] Through the above technical solutions, this application reduces the discomfort caused by static electricity conduction during use. Optimized adhesive layer composition ensures stable adhesion even after long-term use, and the easy-tear design avoids waste caused by replacing the entire tape. The combined design of the second and first adhesive layers simultaneously achieves antibacterial and antistatic functions during cleaning, thereby effectively extending the service life of the antibacterial adhesive roller or antibacterial adhesive mat.

[0025] This application further proposes that the substrate layer is selected from any one of polylactic acid film, polybutylene succinate film, polyhydroxybutyrate film, polyethylene film, polypropylene film, OPP film, pearl film, and cast film.

[0026] Through the above technical solutions, this application can select substrate materials with different properties according to actual needs, reduce the risk of electrostatic conduction while improving the bonding stability of the adhesive layer, and enhance the adsorption capacity of dust and microorganisms through surface microstructure, thus taking into account environmental protection, safety of use and cleaning efficiency.

[0027] Furthermore, in one embodiment, the first adhesive layer further includes 0.1wt% to 0.5wt% of nano-silver powder. Further, the nano-silver is modified nano-silver, modified by using 0.5wt% to 1wt% of a fat-soluble antioxidant and a coupling agent. This maintains the long-lasting antibacterial properties of the nano-silver while ensuring its uniform dispersion and enhancing its interfacial bonding with the matrix material of the first adhesive layer.

[0028] In one embodiment, the acrylate monomer comprises a soft monomer, a hard monomer, and a functional monomer in a weight ratio of (30~40):(6~9):(3~5); wherein the soft monomer comprises at least one of 2-ethylhexyl acrylate, n-butyl acrylate, tetrahydrofuran acrylate, and glycidyl methacrylate; and / or the hard monomer comprises at least one of methyl methacrylate, vinyl acetate, and cyclohexyl methacrylate; and / or the functional monomer comprises at least one of dimethylaminoethyl methacrylate and glycidyl methacrylate.

[0029] It should be noted that when dimethylaminoethyl methacrylate (DMGE) is used as the functional monomer, this group can be converted into a positively charged quaternary ammonium salt structure, endowing the adhesive layer with certain antibacterial properties. Furthermore, the highly polar DMGE significantly improves the interfacial compatibility with conductive nanofillers, further enhancing antistatic capabilities. GMA, on the other hand, utilizes its highly reactive epoxy groups to undergo cross-linking reactions with functional groups on the polymer matrix and filler surface during curing, significantly increasing the cross-linking density and cohesive strength of the adhesive layer.

[0030] This solution, by limiting the synergistic ratio of three types of monomers, further enhances the antistatic and antibacterial functions while maintaining the mechanical balance of the adhesive layer. Through the above technical solution, this application achieves stable adhesion of the first adhesive layer to the substrate layer and the second adhesive layer, reducing the discomfort caused by static electricity to the human body during the cleaning process.

[0031] Furthermore, the thermoplastic elastomer includes TPU resin, which can be polyester-type TPU or polyether-type TPU.

[0032] More preferably, the softening point of the TPU resin is 80℃~90℃. It is understood that further limiting the softening point of the TPU resin is beneficial to the molding operation during the preparation of the first adhesive layer.

[0033] In one embodiment, the polyurethane-based adhesive comprises the following raw materials by weight percentage: Polycarbonate diol: 9wt%~16wt%; diisocyanate: 12wt%~20wt%; dimethylolpropionic acid: 3wt%~7wt%; modified carbon nanotubes: 2wt%~3.8wt%; preservative and mildew inhibitor: 1.5wt%~2.5wt%; catalyst: 0.8wt%~1.5wt%; antioxidant: 0.5wt%~1wt%; plant essential oil: 2wt%~6wt%; and the balance being solvent.

[0034] Furthermore, modified carbon nanotubes refer to composite materials formed by grafting quaternary ammonium salts onto the surface of carbon nanotubes through a chemical reaction, specifically including at least one of dimethyl diethyl ammonium chloride and N,N'-di(2-mercaptoethyl)isophthalamide, thereby endowing the adhesive layer with electrical conductivity and antibacterial activity.

[0035] Through the above technical solution, this application achieves highly efficient inactivation of mites and microorganisms by the adhesive layer, eliminates the discomfort caused by static electricity conduction during the cleaning process, and improves the usage environment through fragrance release. The adhesive layer maintains adhesion while possessing long-lasting antibacterial and antistatic properties, effectively enhancing the overall performance of the cleaning roller.

[0036] In another embodiment, the carbon nanotubes are epoxy modified by oxidation to introduce epoxy groups on the surface of the carbon nanotubes. Specifically, this can be achieved by oxidation with a mixed solution of potassium persulfate and nitric acid. The epoxy groups provide chemical bonding sites for subsequent grafting reactions.

[0037] Specifically, after epoxidation modification, the epoxy groups on the surface of carbon nanotubes undergo a ring-opening reaction with the hydroxyl groups of the modifier to form covalent bonds, allowing the quaternary ammonium salt molecular chains to be firmly grafted onto the surface of the carbon nanotubes. Preferably, the quaternary ammonium salt has a long-chain structure, which can further inhibit the aggregation of carbon nanotubes through steric hindrance, thereby better exerting the antibacterial properties of the quaternary ammonium salt in the adhesive layer.

[0038] This embodiment utilizes chemical grafting of quaternary ammonium salts to simultaneously imbue the surface of carbon nanotubes with both dispersing and reinforcing groups and antibacterial active groups. The grafted molecular chains form physical entanglements with the polyurethane matrix, strengthening the interfacial bonding strength and imparting long-lasting antibacterial properties to the adhesive layer. The steric hindrance effect generated by chemical grafting ensures uniform dispersion of the carbon nanotubes, resulting in a more stable and uniform adhesive layer structure.

[0039] In one specific embodiment, the preservative and antifungal agent includes at least one of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one.

[0040] In a preferred embodiment, the preservative and antifungal agent further includes at least one of benzyl benzoate and permethrin. In a more preferred embodiment, the polyurethane-based adhesive includes 0.5wt% to 0.9wt% of benzyl benzoate and / or permethrin. By adopting the above technical solution, the antibacterial and dust-removing product in this embodiment maintains a high level of antibacterial and anti-mite performance on the surface to be cleaned.

[0041] The present invention also proposes a method for preparing the above-mentioned cleaning roller, comprising the following steps: S1. Add acrylate monomer, solvent and initiator to reaction vessel, heat and stir to carry out copolymerization reaction; then add nano silver powder and stir; then add polyurethane-based acrylate, thermoplastic elastomer and antioxidant, heat to 80℃~110℃ and shear at high speed to obtain the first adhesive. S2. The first adhesive obtained in step S1 is coated onto the surface of the substrate layer to form a wet film, dried, and cured to obtain the first adhesive layer. S3. Coat the surface of the first adhesive layer obtained in step S2 with a polyurethane-based adhesive, dry and cure it to form a second adhesive layer; cut it into multiple tear-resistant units, and machine it into antibacterial adhesive mats or antibacterial adhesive rollers to complete the preparation of the antibacterial adhesive product.

[0042] Compared to existing technologies, traditional cleaning rollers or mats typically use a single-layer adhesive to directly bond the substrate, without considering the synergistic effect of electrostatic conduction and antibacterial function. This solution, through a double-layer adhesive design, simultaneously improves antibacterial and antistatic properties while ensuring adhesion.

[0043] Through the above technical solution, this application can effectively inhibit the growth of microorganisms on the adhesive surface during the cleaning process, eliminate electrostatic adsorption caused by friction, and maintain the tape's continuous adhesion to dust particles. The double-layer adhesive structure maintains the adhesive layer without breaking during repeated tearing and has the characteristics of low residue on the surface of the object to be cleaned. The easy-tear line design allows the soiled tape to be peeled off and replaced in sections, extending the overall service life of the roller, thereby comprehensively improving the user experience.

[0044] The present invention will be further illustrated below through specific embodiments: Example 1 The antibacterial dust-adhesive product in Example 1 is a cleaning roller.

[0045] The first adhesive layer of the cleaning roller in Example 1 comprises the following raw materials by weight percentage: Polyurethane-based acrylate: 18 wt%; TPU resin as thermoplastic elastomer: 4 wt%; n-butyl acrylate: 10 wt%; 2-ethylhexyl acrylate: 12.5 wt%; methyl methacrylate: 5.2 wt%; dimethylaminoethyl methacrylate: 3.5 wt%; initiator: 0.5 wt%; antioxidant: 0.5 wt%; and the balance being ethyl acetate as solvent.

[0046] The melting range of TPU resin is approximately 105℃~110℃, and its softening point is 80℃~85℃.

[0047] The second adhesive layer of the cleaning roller in Example 1 comprises the following raw materials by weight percentage: Polycarbonate diol: 13 wt%; isophorone diisocyanate: 14 wt%; dimethylolpropionic acid: 3.5 wt%; modified carbon nanotubes: 3.2 wt%; preservative and mildew inhibitor: 1.6 wt%; organic amine catalyst: 0.8 wt%; antioxidant: 0.5 wt%; plant essential oil: 3.5 wt%; and the balance being solvent; The preparation process of modified carbon nanotubes includes: The acidified carboxylated carbon nanotubes were dispersed in deionized water, and about 10 wt% of dimethyl diethyl ammonium chloride was added. The mixture was stirred at 60°C for 4 hours, and then washed, filtered, and dried to complete the preparation.

[0048] The method for preparing the cleaning roller in Example 1 includes the following steps: S1. Add acrylate monomer, solvent and initiator to reaction vessel, heat and stir to carry out copolymerization reaction; then add nano silver powder and stir; then add polyurethane-based acrylate, thermoplastic elastomer and antioxidant, heat to 75°C and shear at high speed to obtain the first adhesive. S2. The first adhesive obtained in step S1 is coated onto the surface of the substrate layer to form a wet film, dried, and cured to obtain the first adhesive layer. S3. In another reaction vessel, add polycarbonate diol and isophorone diisocyanate, heat to 50℃~60℃, and stir for 1h~2h; then add dimethylolpropionic acid, heat to 60℃~70℃, stir for 0.5h~1h, then cool to room temperature, add the remaining raw materials, and obtain a polyurethane-based adhesive; coat the surface of the first adhesive layer obtained in step S2 with the polyurethane-based adhesive, dry and cure to form a second adhesive layer; cut to form multiple easy-tear lines, roll into a roller, and obtain a clean roller.

[0049] The initial tack of a single tear unit in Example 1 was measured according to standard GB / T4852-2002, and the initial tack of the second adhesive layer in the adhesive layer was above 22.5 cm.

[0050] It was measured that the tack of the second adhesive layer in a single tear unit in Example 1 was above 12.7h.

[0051] The peel strength of a single tear unit of adhesive layer in Example 1 at 180 degrees was measured to be above 3.9 N / cm.

[0052] The tensile strength and elongation at break of the adhesive layer in the width direction of the easy-tear unit were tested according to the standard GB7753-87, "Test Method for Tensile Properties of Pressure-Sensitive Adhesive Tape". The average tensile strength of a single easy-tear unit in Example 1 was measured to be 29.4 N / cm, and the average elongation at break was 145%.

[0053] The inhibitory activity of Example 1 against Escherichia coli and Staphylococcus aureus was determined using the mycelial growth inhibition rate method. First, the number of colonies was measured when the sample was placed for 0 h, and then the number of colonies was measured again after 48 h to calculate the antibacterial rate. The antibacterial rate of Example 1 against Escherichia coli and Staphylococcus aureus was above 97.7%.

[0054] Comparative Example 1 Comparative Example 1 is based on Example 1, except that the raw material of the first adhesive layer in Comparative Example 1 is changed to: Polyurethane-based acrylate: 18 wt%; n-butyl acrylate: 15.2 wt%; 2-ethylhexyl acrylate: 16 wt%; initiator: 0.5 wt%; antioxidant: 0.5 wt%; and the balance being ethyl acetate as solvent.

[0055] The peel strength of the adhesive layer of a single easy-tear unit in Comparative Example 1 at 180 degrees was measured to be no more than 2.5 N / cm.

[0056] The tensile strength and elongation at break of the adhesive layer in the width direction of the easy-tear unit were tested according to the standard GB7753-87, Tensile Properties Test Method for Pressure-Sensitive Adhesive Tape. The average tensile strength of a single easy-tear unit in Comparative Example 1 was measured to be 23.2 N / cm, and the average elongation at break was 131%.

[0057] Comparative Example 2 Comparative Example 2 is based on Example 1, except that modified carbon nanotubes are not added to the raw materials of the second adhesive layer in Comparative Example 2.

[0058] The adhesion of the second adhesive layer in a single tear unit in Comparative Example 2 was measured to be approximately 11.4 h.

[0059] The tensile strength and elongation at break of the adhesive layer in the width direction of the easy-tear unit were tested according to the standard GB7753-87, "Test Method for Tensile Properties of Pressure-Sensitive Adhesive Tape". The average tensile strength of a single easy-tear unit in Comparative Example 2 was measured to be 26.6 N / cm, and the average elongation at break was 137%.

[0060] The inhibitory activity of Comparative Example 2 against Escherichia coli and Staphylococcus aureus was determined using the mycelial growth inhibition rate method. First, the number of colonies was measured when the sample was placed for 0 h, and then the number of colonies was measured again after 48 h to calculate the antibacterial rate. The antibacterial rate of Comparative Example 2 against Escherichia coli and Staphylococcus aureus was approximately 93.8%.

[0061] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An antibacterial adhesive product, characterized in that, The antibacterial adhesive dust product includes an antibacterial adhesive dust mat or an antibacterial adhesive dust roller. The antibacterial adhesive dust mat includes multiple easy-tear units stacked together, or the antibacterial adhesive dust roller includes multiple easy-tear units wound together. The easy-tear unit includes a substrate layer and an adhesive layer stacked in sequence. The adhesive layer includes a first adhesive layer and a second adhesive layer stacked in sequence, and the first adhesive layer is attached to one surface of the substrate layer. The first adhesive layer comprises the following raw materials by weight percentage: Polyurethane acrylate: 15wt%~25wt%; thermoplastic elastomer: 2wt%~5wt%; acrylate monomer: 22wt%~38wt%; initiator: 0.5wt%~0.8wt%; antioxidant: 0.5wt%~1wt%; and the balance solvent; The second adhesive layer is formed of a polyurethane-based adhesive.

2. The antibacterial adhesive product as described in claim 1, characterized in that, The substrate layer is selected from any one of polylactic acid film, polybutylene succinate film, polyhydroxybutyrate film, polyethylene film, polypropylene film, OPP film, pearl film, and cast film.

3. The antibacterial adhesive product as described in claim 1, characterized in that, The acrylate monomers include soft monomers, hard monomers and functional monomers in a weight ratio of (30~40):(6~9):(3~5); The soft monomer includes at least one of 2-ethylhexyl acrylate, n-butyl acrylate, and tetrahydrofuran acrylate; and / or the hard monomer includes at least one of methyl methacrylate, vinyl acetate, and cyclohexyl methacrylate; and / or the functional monomer includes at least one of dimethylaminoethyl methacrylate and glycidyl methacrylate.

4. The antibacterial adhesive product as described in claim 1, characterized in that, The other surface of the substrate layer is provided with an antistatic coating, and the coating used to prepare the antistatic coating includes graphene.

5. The antibacterial adhesive product as described in claim 1, characterized in that, The polyurethane-based adhesive comprises the following raw materials by weight percentage: Polycarbonate diol: 9wt%~16wt%; diisocyanate: 12wt%~20wt%; dimethylolpropionic acid: 3wt%~7wt%; modified carbon nanotubes: 2wt%~3.8wt%; preservatives and mildew inhibitors: 1.5wt%~2.5wt%; Catalyst: 0.8wt%~1.5wt%; Antioxidant: 0.5wt%~1wt%; Plant essential oils: 2 wt% to 6 wt%; and the balance solvent.

6. The antibacterial adhesive product as described in claim 5, characterized in that, The modified carbon nanotubes are prepared by grafting carbon nanotubes with a modifier. The modifier includes at least one of dimethyldiethylammonium chloride and N,N'-di(2-mercaptoethyl)isophthalamide.

7. The antibacterial adhesive product as described in claim 6, characterized in that, The preservative and antifungal agent includes at least one of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one.

8. A method for preparing an antibacterial adhesive product as described in any one of claims 1 to 7, characterized in that, The preparation method of the antibacterial adhesive dust product includes the following steps: S1. Add thermoplastic elastomer and solvent to reaction vessel, heat and stir until solution is clear; then add polyurethane-based acrylate, acrylate monomer and antioxidant, stir, degas under vacuum, add initiator, stir reaction, filter and take filtrate to obtain the first adhesive. S2. The first adhesive obtained in step S1 is coated onto the surface of the substrate layer to form a wet film, dried, and cured to obtain the first adhesive layer. S3. Coat the surface of the first adhesive layer obtained in step S2 with a polyurethane-based adhesive, dry and cure it to form a second adhesive layer; cut it into multiple tear-resistant units, and machine it into antibacterial adhesive mats or antibacterial adhesive rollers to complete the preparation of the antibacterial adhesive product.