Antibacterial high-strength floor and preparation method thereof

Abstract

The present invention discloses an antibacterial high-strength floor and a preparation method thereof, comprising the following steps: step S1, preparing a substrate layer of an antibacterial plastic-wood material; step S2, preparing a composite antibacterial impregnating glue; step S3, using the composite antibacterial impregnating glue to impregnate wear-resistant paper and balance paper to obtain impregnated wear-resistant paper and impregnated balance paper; step S4, hot-pressing the impregnated wear-resistant paper, the substrate layer and the impregnated balance paper from top to bottom; wherein, organic antibacterial agents, inorganic antibacterial agents and natural antibacterial agents are added to the composite antibacterial impregnating glue. The present invention improves the antibacterial properties of the antibacterial plastic-wood material by adding plastic antibacterial agents and bamboo fiber powder with natural antibacterial properties to the substrate layer of the antibacterial plastic-wood material, and adding organic antibacterial agents, inorganic antibacterial agents and natural antibacterial agents to the composite antibacterial impregnating glue, so that the wear-resistant paper and balance paper after impregnation with the impregnating glue have antibacterial properties at the same time, further improving the antibacterial properties of the floor.

Description

Technical Field

[0001] The invention relates to the technical field of floor preparation, in particular to an antibacterial high-strength floor and a preparation method thereof. Background Art

[0002] Antibacterial flooring is a flooring made by adding antibacterial agents to the flooring materials and then processing them. Antibacterial flooring can inhibit the growth of surface bacteria, thus achieving an antibacterial effect. Currently, most antibacterial floors use a surface spraying process. If the floor is only treated by the surface spraying process, the antibacterial agent layer sprayed on the floor surface is easily damaged or even ineffective during actual use of the floor.

[0003] The defects of the existing floor preparation method are: 1. Patent document EP3708737B1 proposes an outdoor floor and a preparation method thereof. The floor prepared by the preparation method of the patent document has good wear resistance, but the floor preparation method of the patent document does not consider improving the antibacterial performance of the floor so that it can effectively resist bacteria for a long time; 2. Patent document EP3643491A4 discloses a composite floor and a method for manufacturing the same. However, the patent document does not consider improving the flame retardant properties of the floor during the preparation of the floor. 3. Patent document US20220002593A1 discloses an antibacterial enhanced floor and a preparation method thereof. However, after long-term use, the antibacterial substance impregnated on the impregnated paper may separate from the impregnated paper, and the antibacterial effect is weakened and the antibacterial durability is poor. 4. Application document WO2017016206A1 discloses a composite floor and a method for preparing the same. However, the floor prepared by the preparation method of the patent document does not consider solving the problem that the floor is sensitive to water and moisture by improving its waterproofness. Summary of the invention

[0004] The object of the present invention is to provide an antibacterial high-strength floor and a preparation method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, preparing a substrate layer of antibacterial plastic-wood material; Step S2, preparing a composite antibacterial impregnated adhesive; Step S3, using composite antibacterial impregnating glue to impregnate wear-resistant paper and balancing paper to obtain impregnated wear-resistant paper and impregnated balancing paper; Step S4, hot-pressing the impregnated wear-resistant paper, the base layer and the impregnated balancing paper from top to bottom; Wherein, organic antibacterial agent, inorganic antibacterial agent and natural antibacterial agent are added into the composite antibacterial impregnating glue.

[0006] Preferably, the antibacterial plastic-wood material comprises, by weight: 30-45 parts of wood powder, 20-25 parts of plant fiber powder, 4-8 parts of plastic-wood coupling agent, 35-45 parts of high-density polyethylene, 25-32 parts of linear low-density polyethylene, 20-32 parts of functionalized filler and 2-5 parts of plastic antibacterial agent.

[0007] Preferably, the functional filler is bentonite and inorganic phosphorus flame retardant, and the plant fiber powder is bamboo fiber powder.

[0008] Preferably, the preparation method of the substrate layer of the antibacterial plastic wood material is as follows: weigh the raw materials of the components of the antibacterial plastic wood material according to their weight parts, place them in a mixer, stir and mix for 18-25 minutes, then transfer them to a screw extruder, granulate them at 200-250°C to obtain plastic wood particles, add the plastic wood particles into the screw extruder for extrusion molding, and obtain the substrate layer of the antibacterial plastic wood material.

[0009] Preferably, a thickener and a film-forming reactive resin are further added to the composite antibacterial impregnation glue, the inorganic antibacterial agent includes a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent.

[0010] Preferably, the composite antibacterial impregnating glue comprises, by weight, 0.5-1.2 parts of organic antibacterial agent, 0.8-1.4 parts of inorganic antibacterial agent, 0.4-0.8 parts of natural antibacterial agent and 50-60 parts of original impregnating glue.

[0011] Preferably, the wear-resistant paper in step S3 is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 1.8-2.2 times that of the base paper, and the resin impregnation amount of the balancing paper is 1.6-2 times that of the base paper.

[0012] Preferably, in step S3, the impregnated wear-resistant patterned paper and balancing paper are taken out and then subjected to a curing operation to obtain the impregnated wear-resistant paper and impregnated balancing paper with a pre-curing of 40-65%.

[0013] Preferably, the hot pressing temperature in step S4 is 180-250° C., the hot pressing pressure is 12-22 MPa, and the hot pressing treatment time lasts 18-40 seconds.

[0014] Preferably, an antibacterial high-strength floor is prepared by the method for preparing an antibacterial high-strength floor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the substrate layer of the prepared antibacterial plastic-wood material and the wear-resistant paper and the balance paper that have been impregnated with a composite antibacterial impregnating glue are hot-pressed and composited to obtain a floor with high antibacterial performance. In the process of preparing the antibacterial plastic-wood material, the antibacterial performance is improved by adding a plastic antibacterial agent and a natural bamboo fiber powder with antibacterial performance thereto, and an organic antibacterial agent, an inorganic antibacterial agent and a natural antibacterial agent are added to the composite antibacterial impregnating glue, so that the wear-resistant paper and the balance paper that have been impregnated with the impregnating glue have antibacterial performance at the same time, thereby further improving the antibacterial performance of the floor.

[0016] 2. The present invention adds functional fillers in the process of preparing the substrate layer of the antibacterial plastic wood material. The functional fillers include bentonite and inorganic phosphorus flame retardants. Bentonite has good ion exchange properties due to its own structure and can be flame retardant to a certain extent. The inorganic phosphorus flame retardant can decompose at the combustion temperature to generate non-volatile glass-like substances. This dense protective layer acts as an isolation layer to achieve a flame retardant effect. By adding functional fillers in the process of preparing the substrate layer of the antibacterial plastic wood material, the floor has excellent flame retardancy.

[0017] 3. In the present invention, by adding a thickener and a film-forming reactive resin to the composite antibacterial impregnating glue, the antibacterial substance in the composite antibacterial agent can be evenly dispersed on the wear-resistant paper and the balancing paper, so that the antibacterial substance can be more stably attached to the wear-resistant paper and the balancing paper, thereby improving the antibacterial durability of the floor.

[0018] 4. In the present invention, the antibacterial plastic-wood material substrate layer is prepared so that the plastic-wood material is used as the base layer of the floor. The plastic-wood material substrate layer is a composite material of wood fiber and polymer, which makes the floor have excellent waterproof and moisture-proof properties and solves the problem that the wooden floor is sensitive to water and moisture. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0020] Example 1 An embodiment provided by the present invention is a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, preparing a substrate layer of an antibacterial plastic wood material, wherein the components of the antibacterial plastic wood material include, by weight: 38 parts of wood powder, 22 parts of plant fiber powder, 4 parts of plastic-wood coupling agent, 36 parts of high-density polyethylene, 28 parts of linear low-density polyethylene, 22 parts of functionalized fillers and 3 parts of plastic antibacterial agent, wherein the functionalized fillers are bentonite and inorganic phosphorus flame retardant, and the plant fiber powder is bamboo fiber powder. The raw materials of the components are weighed according to the weight of the components of the antibacterial plastic wood material, and the raw materials are placed in a mixer, stirred and mixed for 20 minutes, and then transferred to a screw extruder, granulated at 200° C. to obtain plastic wood particles, and the plastic wood particles are added to the screw extruder for extrusion molding to obtain the substrate layer of the antibacterial plastic wood material; Step S2, preparing a composite antibacterial impregnating glue, wherein the composite antibacterial impregnating glue comprises, by weight, 0.8 parts of an organic antibacterial agent, 0.9 parts of an inorganic antibacterial agent, 0.5 parts of a natural antibacterial agent and 55 parts of an original impregnating glue, a thickener and a film-forming reactive resin are further added to the composite antibacterial impregnating glue, the inorganic antibacterial agent comprises a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent; Step S3, using composite antibacterial impregnating glue to impregnate wear-resistant paper and balance paper to obtain impregnated wear-resistant paper and impregnated balance paper, the wear-resistant paper is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 1.8 times that of the base paper, and the resin impregnation amount of the balance paper is 1.6 times that of the base paper, taking out the impregnated wear-resistant patterned paper and balance paper and performing a curing operation to obtain impregnated wear-resistant paper and impregnated balance paper with a pre-curing of 45%; Step S4, hot pressing the impregnated wear-resistant paper, the base layer and the impregnated balance paper from top to bottom, the hot pressing temperature is 180° C., the hot pressing pressure is 22 MPa, and the hot pressing treatment time lasts for 38 seconds.

[0021] Example 2 An embodiment provided by the present invention is a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, preparing a substrate layer of an antibacterial plastic wood material, wherein the components of the antibacterial plastic wood material include, by weight: 43 parts of wood powder, 23 parts of plant fiber powder, 5 parts of plastic-wood coupling agent, 40 parts of high-density polyethylene, 30 parts of linear low-density polyethylene, 26 parts of functionalized fillers and 4 parts of plastic antibacterial agent, wherein the functionalized fillers are bentonite and inorganic phosphorus flame retardant, and the plant fiber powder is bamboo fiber powder. The raw materials of the components are weighed according to the weight of the components of the antibacterial plastic wood material, and the raw materials are placed in a mixer, stirred and mixed for 24 minutes, and then transferred to a screw extruder, granulated at 200°C to obtain plastic wood particles, and the plastic wood particles are added to the screw extruder for extrusion molding to obtain a substrate layer of the antibacterial plastic wood material; Step S2, preparing a composite antibacterial impregnating glue, wherein the composite antibacterial impregnating glue comprises, by weight, 1.1 parts of an organic antibacterial agent, 1.3 parts of an inorganic antibacterial agent, 0.6 parts of a natural antibacterial agent and 58 parts of an original impregnating glue, a thickener and a film-forming reactive resin are further added to the composite antibacterial impregnating glue, the inorganic antibacterial agent comprises a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent; Step S3, using composite antibacterial impregnating glue to impregnate wear-resistant paper and balance paper to obtain impregnated wear-resistant paper and impregnated balance paper, the wear-resistant paper is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 2 times that of the base paper, and the resin impregnation amount of the balance paper is 1.8 times that of the base paper, taking out the impregnated wear-resistant patterned paper and balance paper and performing a curing operation to obtain impregnated wear-resistant paper and impregnated balance paper with a pre-curing of 55%; Step S4, hot-pressing the impregnated wear-resistant paper, the substrate layer and the impregnated balancing paper from top to bottom, with the hot-pressing temperature being 200° C., the hot-pressing pressure being 18 MPa, and the hot-pressing treatment time lasting 30 seconds.

[0022] Example 3 An embodiment provided by the present invention is a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, preparing a substrate layer of an antibacterial plastic wood material, wherein the components of the antibacterial plastic wood material include, by weight: 45 parts of wood powder, 22 parts of plant fiber powder, 4 parts of plastic-wood coupling agent, 36 parts of high-density polyethylene, 28 parts of linear low-density polyethylene, 22 parts of functionalized fillers and 3 parts of plastic antibacterial agent, wherein the functionalized fillers are bentonite and inorganic phosphorus flame retardant, and the plant fiber powder is bamboo fiber powder. The raw materials of the components are weighed according to the weight of the components of the antibacterial plastic wood material, and the raw materials are placed in a mixer, stirred and mixed for 18 minutes, and then transferred to a screw extruder, granulated at 250° C. to obtain plastic wood particles, and the plastic wood particles are added to the screw extruder for extrusion molding to obtain the substrate layer of the antibacterial plastic wood material; Step S2, preparing a composite antibacterial impregnating glue, wherein the composite antibacterial impregnating glue comprises, by weight, 0.8 parts of an organic antibacterial agent, 0.9 parts of an inorganic antibacterial agent, 0.5 parts of a natural antibacterial agent and 55 parts of an original impregnating glue, a thickener and a film-forming reactive resin are further added to the composite antibacterial impregnating glue, the inorganic antibacterial agent comprises a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent; Step S3, using composite antibacterial impregnating glue to impregnate wear-resistant paper and balance paper to obtain impregnated wear-resistant paper and impregnated balance paper, the wear-resistant paper is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 2.2 times that of the base paper, and the resin impregnation amount of the balance paper is 2 times that of the base paper, and the impregnated wear-resistant patterned paper and balance paper are taken out and cured to obtain impregnated wear-resistant paper and impregnated balance paper pre-cured to 62%; Step S4, hot pressing the impregnated wear-resistant paper, the substrate layer and the impregnated balance paper from top to bottom, the hot pressing temperature is 1250° C., the hot pressing pressure is 12 MPa, and the hot pressing treatment time lasts for 18 seconds.

[0023] Comparative Example 1 A comparative example provided by the present invention: a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, using ordinary laminate wood as the base layer of the floor; Step S2, preparing a composite antibacterial impregnating glue, wherein the composite antibacterial impregnating glue comprises, by weight, 0.8 parts of an organic antibacterial agent, 0.9 parts of an inorganic antibacterial agent, 0.5 parts of a natural antibacterial agent and 55 parts of an original impregnating glue, a thickener and a film-forming reactive resin are further added to the composite antibacterial impregnating glue, the inorganic antibacterial agent comprises a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent; Step S3, using composite antibacterial impregnating glue to impregnate wear-resistant paper and balance paper to obtain impregnated wear-resistant paper and impregnated balance paper, the wear-resistant paper is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 1.8 times that of the base paper, and the resin impregnation amount of the balance paper is 1.6 times that of the base paper, taking out the impregnated wear-resistant patterned paper and balance paper and performing a curing operation to obtain impregnated wear-resistant paper and impregnated balance paper with a pre-curing of 45%; Step S4, hot pressing the impregnated wear-resistant paper, the base layer and the impregnated balance paper from top to bottom, the hot pressing temperature is 180° C., the hot pressing pressure is 22 MPa, and the hot pressing treatment time lasts for 38 seconds.

[0024] The preparation method of the antibacterial high-strength floor of this comparative example is different from that of Example 1 in that no antibacterial plastic-wood material is prepared as the substrate layer, and ordinary reinforced solid wood boards are used as the substrate layer of the floor, and the rest are the same as in Example 1.

[0025] Comparative Example 2 A comparative example provided by the present invention: a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, preparing a substrate layer of an antibacterial plastic wood material, wherein the components of the antibacterial plastic wood material include, by weight: 38 parts of wood powder, 22 parts of plant fiber powder, 4 parts of plastic-wood coupling agent, 36 parts of high-density polyethylene, 28 parts of linear low-density polyethylene and 3 parts of plastic antibacterial agent, wherein the plant fiber powder is bamboo fiber powder, and the raw materials of the components are weighed according to the weight parts of the components of the antibacterial plastic wood material, and are placed in a mixer, stirred and mixed for 20 minutes, and then transferred to a screw extruder, granulated at 200° C. to obtain plastic wood particles, and the plastic wood particles are added to the screw extruder for extrusion molding to obtain a substrate layer of the antibacterial plastic wood material; Step S2, preparing a composite antibacterial impregnating glue, wherein the composite antibacterial impregnating glue comprises, by weight, 0.8 parts of an organic antibacterial agent, 0.9 parts of an inorganic antibacterial agent, 0.5 parts of a natural antibacterial agent and 55 parts of an original impregnating glue, a thickener and a film-forming reactive resin are further added to the composite antibacterial impregnating glue, the inorganic antibacterial agent comprises a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent; Step S3, using composite antibacterial impregnating glue to impregnate wear-resistant paper and balance paper to obtain impregnated wear-resistant paper and impregnated balance paper, the wear-resistant paper is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 1.8 times that of the base paper, and the resin impregnation amount of the balance paper is 1.6 times that of the base paper, taking out the impregnated wear-resistant patterned paper and balance paper and performing a curing operation to obtain impregnated wear-resistant paper and impregnated balance paper with a pre-curing of 45%; Step S4, hot pressing the impregnated wear-resistant paper, the base layer and the impregnated balance paper from top to bottom, the hot pressing temperature is 180° C., the hot pressing pressure is 22 MPa, and the hot pressing treatment time lasts for 38 seconds.

[0026] The preparation method of the antibacterial high-strength floor in this comparative example is different from that in Example 1 in that no functional filler is added to the substrate layer for preparing the antibacterial plastic-wood material, and the rest is the same as that in Example 1.

[0027] Comparative Example 3 A comparative example provided by the present invention: a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, preparing a substrate layer of an antibacterial plastic wood material, wherein the components of the antibacterial plastic wood material include, by weight, 38 parts of wood powder, 4 parts of a plastic-wood coupling agent, 36 parts of high-density polyethylene, 28 parts of a linear low-density polyethylene, and 22 parts of a functional filler, wherein the functional filler is bentonite and an inorganic phosphorus flame retardant, weighing the raw materials of the components according to the weight of the components of the antibacterial plastic wood material, placing them in a mixer, stirring and mixing for 20 minutes, and then transferring them to a screw extruder, granulating at 200° C. to obtain plastic wood particles, adding the plastic wood particles to the screw extruder for extrusion molding, and obtaining a substrate layer of the antibacterial plastic wood material; Step S2, preparing a composite antibacterial impregnating glue, wherein the composite antibacterial impregnating glue comprises, by weight, 0.8 parts of an organic antibacterial agent, 0.9 parts of an inorganic antibacterial agent, 0.5 parts of a natural antibacterial agent and 55 parts of an original impregnating glue, a thickener and a film-forming reactive resin are further added to the composite antibacterial impregnating glue, the inorganic antibacterial agent comprises a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent; Step S3, using composite antibacterial impregnating glue to impregnate wear-resistant paper and balance paper to obtain impregnated wear-resistant paper and impregnated balance paper, the wear-resistant paper is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 1.8 times that of the base paper, and the resin impregnation amount of the balance paper is 1.6 times that of the base paper, taking out the impregnated wear-resistant patterned paper and balance paper and performing a curing operation to obtain impregnated wear-resistant paper and impregnated balance paper with a pre-curing of 45%; Step S4, hot pressing the impregnated wear-resistant paper, the base layer and the impregnated balance paper from top to bottom, the hot pressing temperature is 180° C., the hot pressing pressure is 22 MPa, and the hot pressing treatment time lasts for 38 seconds.

[0028] The preparation method of the antibacterial high-strength floor in this comparative example is different from that in Example 1 in that no plant fiber powder and plastic antibacterial agent are added to the substrate layer for preparing the antibacterial plastic-wood material, and the rest is the same as in Example 1.

[0029] Comparative Example 4 A comparative example provided by the present invention: a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, preparing a substrate layer of an antibacterial plastic wood material, wherein the components of the antibacterial plastic wood material include, by weight: 38 parts of wood powder, 22 parts of plant fiber powder, 4 parts of plastic-wood coupling agent, 36 parts of high-density polyethylene, 28 parts of linear low-density polyethylene, 22 parts of functionalized fillers and 3 parts of plastic antibacterial agent, wherein the functionalized fillers are bentonite and inorganic phosphorus flame retardant, and the plant fiber powder is bamboo fiber powder. The raw materials of the components are weighed according to the weight of the components of the antibacterial plastic wood material, and the raw materials are placed in a mixer, stirred and mixed for 20 minutes, and then transferred to a screw extruder, granulated at 200° C. to obtain plastic wood particles, and the plastic wood particles are added to the screw extruder for extrusion molding to obtain the substrate layer of the antibacterial plastic wood material; Step S2, using common impregnating glue to impregnate the wear-resistant paper and the balancing paper to obtain impregnated wear-resistant paper and impregnated balancing paper, the wear-resistant paper is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 1.8 times that of the base paper, and the resin impregnation amount of the balancing paper is 1.6 times that of the base paper, taking out the impregnated wear-resistant patterned paper and the balancing paper and performing a curing operation to obtain impregnated wear-resistant paper and impregnated balancing paper with a pre-curing of 45%; Step S3, hot pressing the impregnated wear-resistant paper, the base layer and the impregnated balance paper from top to bottom, the hot pressing temperature is 180° C., the hot pressing pressure is 22 MPa, and the hot pressing treatment time lasts for 38 seconds.

[0030] The preparation method of the antibacterial high-strength floor in this comparative example is different from that in Example 1 in that there is no need to prepare a composite antibacterial impregnating glue, and ordinary impregnating glue is used to impregnate the wear-resistant paper and the balancing paper, and the rest is the same as in Example 1.

[0031] Comparative Example 5 A comparative example provided by the present invention: a method for preparing an antibacterial high-strength floor, comprising the following steps: Step S1, preparing a substrate layer of an antibacterial plastic wood material, wherein the components of the antibacterial plastic wood material include, by weight: 38 parts of wood powder, 22 parts of plant fiber powder, 4 parts of plastic-wood coupling agent, 36 parts of high-density polyethylene, 28 parts of linear low-density polyethylene, 22 parts of functionalized fillers and 3 parts of plastic antibacterial agent, wherein the functionalized fillers are bentonite and inorganic phosphorus flame retardant, and the plant fiber powder is bamboo fiber powder. The raw materials of the components are weighed according to the weight of the components of the antibacterial plastic wood material, and the raw materials are placed in a mixer, stirred and mixed for 20 minutes, and then transferred to a screw extruder, granulated at 200° C. to obtain plastic wood particles, and the plastic wood particles are added to the screw extruder for extrusion molding to obtain the substrate layer of the antibacterial plastic wood material; Step S2, preparing a composite antibacterial impregnating glue, wherein the composite antibacterial impregnating glue comprises, by weight, 0.8 parts of an organic antibacterial agent, 0.9 parts of an inorganic antibacterial agent, 0.5 parts of a natural antibacterial agent and 55 parts of an original impregnating glue, wherein the inorganic antibacterial agent comprises a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent; Step S3, using the antibacterial impregnated adhesive obtained above to impregnate the wear-resistant paper and the balance paper to obtain impregnated wear-resistant paper and impregnated balance paper, the wear-resistant paper is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 1.8 times that of the base paper, and the resin impregnation amount of the balance paper is 1.6 times that of the base paper, taking out the impregnated wear-resistant patterned paper and balance paper and performing a curing operation to obtain impregnated wear-resistant paper and impregnated balance paper with a pre-curing of 45%; Step S4, hot pressing the impregnated wear-resistant paper, the base layer and the impregnated balance paper from top to bottom, the hot pressing temperature is 180° C., the hot pressing pressure is 22 MPa, and the hot pressing treatment time lasts for 38 seconds.

[0032] The preparation method of the antibacterial high-strength floor in this comparative example is different from that in Example 1 in that no thickener and film-forming reactive resin are added to the prepared composite antibacterial impregnating glue, and the rest are the same as those in Example 1.

[0033] The specific conditions of the weight parts of the components of the substrate layer of the antibacterial plastic wood material of the floor of the above-mentioned Examples 1-3 and Comparative Examples 1-5 and the weight parts of the components of the composite antibacterial impregnating adhesive are as follows:

[0034] , The floor products prepared in Examples 1-3 and Comparative Examples 1-5 were subjected to performance testing experiments: Antibacterial test The conventional method was used to conduct antibacterial test on the samples. This test mainly targeted Staphylococcus aureus and Escherichia coli, and tested the floor test samples with a usage time of 0 days and 100 days respectively; The flame retardancy of floor products is determined by the limiting oxygen index test. The limiting oxygen index test uses conventional methods to conduct limiting oxygen tests on samples. The larger the limiting oxygen index, the better the flame retardancy.

[0035] The performance test results of the floor preparation products of the above Examples 1-3 and Comparative Examples 1-5 are as follows , Combined with Examples 1-3 and Comparative Examples 1-3, and combined with the test results, analysis was performed: By comparing Examples 1-3 with Comparative Example 1, if ordinary solid wood flooring is used as the substrate layer in the preparation of the floor, the antibacterial rate and flame retardancy of the floor product will be reduced; By comparing Examples 1-3 with Comparative Example 2, if no functional filler is added to the substrate layer of the antibacterial plastic wood material in the preparation of the floor, the flame retardancy of the floor will be greatly affected; By comparing Examples 1-3 with Comparative Example 3, if plant fiber powder and plastic antibacterial agent are not added to the substrate layer of the antibacterial wood-plastic material in the preparation of the floor, the antibacterial properties of the floor will be greatly affected; By comparing Examples 1-3 with Comparative Example 4, if ordinary impregnation glue is used to impregnate the wear-resistant paper and the balancing paper during the preparation of the floor, the antibacterial performance of the floor will be significantly reduced; By comparing Examples 1-3 with Comparative Example 5, if no thickener and no film-forming reactive resin are added to the composite antibacterial impregnation adhesive in the preparation of the floor, the antibacterial performance of the floor will be significantly reduced after the floor is used for a long time.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A method for preparing an antibacterial high-strength floor, characterized in that: The steps include: Step S1, preparing a substrate layer of antibacterial plastic-wood material; Step S2, preparing a composite antibacterial impregnated adhesive; Step S3, using composite antibacterial impregnating glue to impregnate wear-resistant paper and balancing paper to obtain impregnated wear-resistant paper and impregnated balancing paper; Step S4, hot-pressing the impregnated wear-resistant paper, the base layer and the impregnated balancing paper from top to bottom; Wherein, organic antibacterial agent, inorganic antibacterial agent and natural antibacterial agent are added into the composite antibacterial impregnation glue.

2. The method for preparing an antibacterial high-strength floor according to claim 1, characterized in that: The components of the antibacterial plastic-wood material include, by weight: 30-45 parts of wood powder, 20-25 parts of plant fiber powder, 4-8 parts of plastic-wood coupling agent, 35-45 parts of high-density polyethylene, 25-32 parts of linear low-density polyethylene, 20-32 parts of functional filler and 2-5 parts of plastic antibacterial agent.

3. The method for preparing an antibacterial high-strength floor according to claim 2, characterized in that: The functional filler is bentonite and inorganic phosphorus flame retardant, and the plant fiber powder is bamboo fiber powder.

4. The method for preparing an antibacterial high-strength floor according to claim 2, characterized in that: The preparation method of the substrate layer of the antibacterial plastic wood material is as follows: weigh the raw materials of the components of the antibacterial plastic wood material according to their weight parts, place them in a mixer, stir and mix for 18-25 minutes, then transfer them to a screw extruder, granulate them at 200-250°C to obtain plastic wood particles, add the plastic wood particles into the screw extruder for extrusion molding, and obtain the substrate layer of the antibacterial plastic wood material.

5. The method for preparing an antibacterial high-strength floor according to claim 1, characterized in that: The composite antibacterial impregnating glue comprises, by weight, 0.5-1.2 parts of an organic antibacterial agent, 0.8-1.4 parts of an inorganic antibacterial agent, 0.4-0.8 parts of a natural antibacterial agent and 50-60 parts of the original impregnating glue.

6. The method for preparing an antibacterial high-strength floor according to claim 5, characterized in that: The composite antibacterial impregnating glue is further added with a thickener and a reactive resin capable of forming a film. The inorganic antibacterial agent comprises a silver ion antibacterial agent and a photocatalyst antibacterial agent, and the natural antibacterial agent is a chitosan antibacterial agent.

7. The method for preparing an antibacterial high-strength floor according to claim 1, characterized in that: The wear-resistant paper in step S3 is wear-resistant patterned paper, the resin impregnation amount of the wear-resistant patterned paper is 1.8-2.2 times that of the base paper, and the resin impregnation amount of the balance paper is 1.6-2 times that of the base paper.

8. The method for preparing an antibacterial high-strength floor according to claim 7, characterized in that: In the step S3, the impregnated wear-resistant patterned paper and balancing paper are taken out and then subjected to a curing operation to obtain the impregnated wear-resistant paper and the impregnated balancing paper with a pre-curing of 40-65%.

9. The method for preparing an antibacterial high-strength floor according to claim 1, characterized in that: The hot pressing temperature in step S4 is 180-250° C., the hot pressing pressure is 12-22 MPa, and the hot pressing treatment time lasts 18-40 seconds. 10.An antibacterial high-strength floor, characterized by: The antibacterial high-strength floor is prepared by the preparation method of any one of claims 1 to 9.

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