Matt anti-slip wear-resistant co-extrusion plastic wood floor fabric and preparation method thereof

Abstract

The application discloses a kind of extinction antiskid wear-resistant co-extrusion plastic wood floor fabric and its preparation method, the weight fraction of each component when total weight fraction is 100 parts is as follows: high density polyethylene 50-60 parts, low density polyethylene 8-15 parts, glass bead 8-15 parts, filler 5-10 parts, bonding aid 7-11 parts, tackifier 2-4 parts, antioxidant (168) 0.1-0.2 parts, antioxidant (1010) 0.1-0.2 parts; ultraviolet light absorber 0.3-0.5 parts, pigment 0.2-0.5 parts.The application prepares surface fabric with extinction antiskid wear-resistant characteristics by hot melt mixing of each modified raw material, the surface gloss is less than 28GU, the wear resistance index is more than 51, the fabric can effectively coat plastic wood core layer, thereby endows wood plastic floor with excellent wear resistance and wood texture, self-extinguishing without polishing, with low cost, good waterproof performance, anti-slip, long service life and other characteristics meet the current people's pursuit of wood plastic floor beautiful and practical and green environmental protection.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of high polymer materials and the field of inorganic filler preparation, and particularly relates to a matt wear-resistant co-extrusion plastic wood floor fabric and a preparation method thereof. The prepared plastic wood floor fabric has excellent comprehensive properties such as water resistance, environmental protection, free polishing, self-matt and wear resistance. BACKGROUND

[0002] The plastic wood floor is made of wood-plastic composite material. The raw materials used can be waste plastics, waste wood, and plant fibers such as agricultural and forestry logs, which are free of harmful ingredients and can be recycled and reused, belonging to a novel product of environmental protection, energy saving, and resource recycling.

[0003] The surface of the traditional plastic wood floor is not coated with a protective plastic film, which is easily damaged under various extreme weather conditions, ultraviolet light irradiation, environmental humidity, and aspergillus flavus. In recent years, researchers have coated a layer of plastic fabric with different properties on the surface of the plastic wood floor by surface coating or co-extrusion coating, which has the wood texture of wood and the water resistance, corrosion resistance, wear resistance, high strength, and anti-static, temperature resistance, etc. of plastic, making it a kind of outdoor waterproof and corrosion-resistant building material with excellent performance and high durability. The improvement of wood texture often requires polishing and matting of the surface of the plastic wood floor. The preparation method of the co-extrusion plastic wood floor fabric disclosed in the prior art still lacks a co-extrusion plastic wood floor fabric that is self-matt and free of polishing.

[0004] Chinese patent CN 112708257A discloses a high-elasticity wear-resistant outdoor wood-plastic surface layer material and a preparation method thereof, which uses thermoplastic elastomer and wear-resistant agent to solve the problems of plastic wood elasticity and wear resistance, but does not solve the problem of strong plasticity of the surface layer material. The wood texture needs to be polished and matted to reduce the plasticity and obtain a better wood texture, which increases the process flow and causes material waste.

[0005] Chinese patent CN 102757592A discloses a wear-resistant, scratch-resistant, and stain-resistant plastic wood profile with high weather resistance and a preparation method thereof. The core material is coated with a wear-resistant, scratch-resistant, stain-resistant, and high-weather-resistant protective layer around the periphery by co-extrusion molding to prevent scratches caused by people and hard objects. The invention does not solve the problem of matting of the protective layer material, and subsequent polishing is required to improve the wood texture of the material, increasing the process flow.

[0006] Chinese patent CN 111019219A discloses a preparation method of a flame-retardant wood-plastic surface layer composite and a wood-plastic composite material with the flame-retardant wood-plastic surface layer composite. The patent solves the problems of flame retardation, weather resistance, and slip resistance of the wood-plastic surface layer composite, but fails to solve the problems of matting and wear resistance. SUMMARY

[0007] The present application aims at the long process, large material consumption and the failure to solve the problems of matting and wear resistance in the prior art, and provides a matting, anti-skid and wear-resistant co-extrusion plastic wood floor fabric.

[0008] Another object of the present application is to provide a preparation method of the matting, anti-skid and wear-resistant co-extrusion plastic wood floor fabric.

[0009] To achieve the above object of the present application, the present application provides a matting, anti-skid and wear-resistant co-extrusion plastic wood floor fabric, wherein the weight percentage of each component in the total weight of 100 parts is as follows:

[0010]

[0011] The glass microbeads are composed of solid glass microbeads, hollow glass microbeads and glass microbead fragments, and the proportion of the solid glass microbeads, hollow glass microbeads and glass microbead fragments in the total weight of 100% of the glass microbeads is 50-68%, 18-34% and 5-16% respectively, and the volume proportion of the spherical individual is not less than 80%.

[0012] The high-density polyethylene, low-density polyethylene, glass microbeads and filler in the above components are the main components of the plastic wood floor fabric. The inventor has found that, compared with the high-density polyethylene, the low-density polyethylene has a small density and a low melt viscosity, and can be used to prepare a master batch containing a high filling rate of glass microbeads.

[0013] Preferably, the weight percentage of each component in the total weight of 100 parts is as follows:

[0014]

[0015] Preferably, the proportion of the solid glass microbeads, hollow glass microbeads and glass microbead fragments in the total weight of 100% of the glass microbeads is 54-66%, 20-32% and 7-14% respectively.

[0016] Further, the glass microbeads are high-flowability glass microbead fillers with a density of 1.5-2.0 g / cm 3 , a compressive strength of 30-80 MPa and an average particle size of 10-100 μm.

[0017] Further, the filler is at least one of talc, calcium carbonate, silicon powder and quartz sand, and the particle size range is 1000-1500 mesh.

[0018] Further, the adhesion aid is an ethylene-tetrafluoroethylene-maleic anhydride copolymer, and the tackifier is a hydrogenated petroleum resin.

[0019] Further, the ultraviolet light absorber is phenyl salicylate.

[0020] The glass beads used in the application are prepared by the following steps:

[0021] 1) Put silica, boron oxide, calcite, gypsum and feldspar into a grinding container according to the mass ratio (5.5-6.5):(1.1-1.3):(1.4-1.7):(0.28-0.32):1, and grind into powder with an average particle size of 1-15 μm;

[0022] 2) Put the powder prepared in step 1) into a high-speed mixer, add 0.5-2% of stearic acid by mass fraction, melt and bond at a high temperature of 100-150 ℃, stir at a speed of 1000-1500 r / min for 2-6 h, and prepare precursor particles with an average particle size of 10-100 μm;

[0023] 3) Transport the precursor particles prepared in step 2) to a glass bead high-temperature vitrification furnace by airflow, control the vitrification temperature to be 800-1300 ℃, and control the vitrification time to be 0.8-2 seconds, to obtain a preliminary product containing solid glass beads, hollow glass beads and glass bead fragments after sorting and refining;

[0024] 4) Perform surface treatment on the preliminary product prepared in step 3), add 0.5-5% of waterproof agent by mass fraction of the preliminary product, and prepare high-flowability glass beads with a density of 1.5-2.0 g / cm 3 , a compressive strength of 30-80 MPa and an average particle size of 10-100 μm by atomization mixing and drying; the flow performance requires that the glass beads can flow out naturally in a bin, and the repose angle is ≤10° as tested by a powder property instrument.

[0025] The waterproof agent used in step 4) is methacryloxy silane (KH570) or other waterproof agents with similar performance.

[0026] The application discloses a preparation method of a matt, antiskid and wear-resistant co-extrusion plastic wood floor fabric.

[0027] 1) Put low-density polyethylene, 30-36% of an antioxidant and 30-36% of a bonding aid into a high-speed mixer, mix uniformly in the high-speed mixer, and then add into a general-purpose three-section parallel double-screw extruder, wherein a side feeding port is added in the fifth to eighth temperature zones from the main feeding port; glass beads are added from the side feeding port through a screw for transportation, and the glass beads are added to the mother granules containing a high filling proportion of the glass beads by extrusion granulation, the length-diameter ratio of the parallel double-screw extruder is (16-22):1, the screw compression ratio is (2-3):1, and the processing temperature is 170-200 ℃; the three sections are a feeding section, a compression section and a metering section;

[0028] 2) the above master batch, high-density polyethylene, the remaining antioxidant, the remaining adhesion aid, the filler, the tackifier and the pigment are added into a high mixer, and after being uniformly mixed by the high mixer, are added into a parallel double screw extruder with a length-diameter ratio of (42-46):1 and a processing temperature of 180-220 DEG C to be extruded and granulated, so as to prepare the co-extrusion plastic wood floor surface layer fabric with a surface glossiness lower than 28GU, a wear resistance index higher than 51 and self-matting, anti-skid and wear resistance.

[0029] The present application prepares the surface layer fabric with matting, wear resistance and scratch resistance by hot melt mixing various raw materials and introducing functional fillers such as glass beads, and the fabric can effectively coat the plastic wood core layer, so that the wood plastic floor is endowed with excellent wood-like appearance, without the need of polishing and matting in the later stage, the process flow is reduced, the production efficiency is improved, and the energy saving and environmental protection requirements are met. The plastic wood floor fabric prepared by the present application has excellent comprehensive properties such as water resistance, environmental protection, polishing-free, self-matting and wear resistance.

[0030] Compared with the prior art, the present application has the following beneficial effects after adopting the above technical scheme:

[0031] (1) The present application prepares the surface layer fabric with matting, anti-skid and scratch resistance by hot melt mixing various raw materials, and the fabric has low plasticity and can effectively coat the plastic wood core layer, so that the wood plastic floor is endowed with excellent wood-like appearance.

[0032] (2) The present application solves the problem of uneven distribution and mixing of glass beads during integrated granulation by the method of preparing high-filled glass bead LDPE master batch by side feeding.

[0033] (3) The present application adds large-particle-size spherical functional fillers such as glass beads with an average particle size of 10-100 μm, which have good flow dispersibility, high hardness, good size stability, high-temperature resistance, wear resistance, scratch resistance, self-lubrication and other characteristics, without the need of additional lubricant, so that the surface layer fabric prepared has a rough surface, a surface glossiness lower than 28GU, a wear resistance index higher than 51, without the need of manual polishing in the later stage, the process is reduced, the production efficiency is improved, the material and cost are saved, energy saving and environmental protection are achieved, the material thermal deformation temperature is improved, and the properties such as anti-shrinkage deformation are improved, so that the thermal stability and size stability of the material are improved. DETAILED DESCRIPTION

[0034] In order to describe the present application, the present application of a co-extrusion plastic wood floor surface layer fabric with matting, anti-skid and wear resistance and a preparation method thereof will be further described in detail in combination with examples. However, the present application is not limited to the examples.

[0035] Example 1

[0036] The co-extrusion plastic wood floor surface layer fabric of the present application is composed of the following components in parts by weight:

[0037] High density polyethylene: 55 parts;

[0038] Low density polyethylene: 10 parts;

[0039] Glass microbeads: 8 parts;

[0040] Talcum powder: 9 parts;

[0041] Ethylene-tetrafluoroethylene-maleic anhydride copolymer: 8 parts;

[0042] Hydrogenated petroleum resin: 2.2 parts;

[0043] Antioxidant 168: 0.1 part;

[0044] Antioxidant 1010: 0.1 part;

[0045] Ultraviolet light absorber: 0.3 part;

[0046] Iron oxide yellow: 0.3 part.

[0047] The preparation method is:

[0048] (1) Preparation of high flowability glass microbeads with a density of 1.5-2.0 g / cm 3 , a compressive strength of 30-80 MPa, an average particle size of 40±20 μm, and containing 10-30% hollow glass microbeads: Silica, boron oxide, calcite, gypsum and feldspar are put into a grinding container in a mass ratio of 6:1.2:1.5:0.3:1 to grind into a powder with an average particle size of ≤5 μm, which is added into a high-speed mixer, 0.5% stearic acid is added for high-temperature melting and bonding at 110°C, the rotating speed is 1500 r / min, and the stirring time is 3 h to prepare precursor particles with an average particle size of 35 μm, which are transported by airflow to a glass microbead high-temperature vitrification furnace, the vitrification temperature is 1200°C, the vitrification time is 1 second, 1.5% waterproof agent is further added, and the mixture is dried by atomization to prepare high flowability glass microbeads with a density of 1.723 g / cm 3 , a compressive strength of 50 MPa, an average particle size of 37 μm, containing 17.42% hollow glass microbeads, and a flowability test recumbent angle of 8°.

[0049] (2) Preparation of high-filled glass microbead low-density polyethylene functional masterbatch: The above low-density polyethylene, antioxidant and ethylene-tetrafluoroethylene-maleic anhydride copolymer are added into a high-speed mixer, mixed uniformly by the high-speed mixer, and then added into a parallel double-screw extruder, glass microbeads are added from the side of the 7th temperature zone through the screw, and the double-screw extrusion granulation is performed to obtain a masterbatch containing 45% high-filled glass microbeads, the length-diameter ratio of the parallel double-screw extruder is 20:1, the screw compression ratio is 2.6:1, and the processing temperature is 170°C.

[0050] (3) Preparation of matt anti-slip wear-resistant co-extruded wood floor fabric: the above-mentioned master batch containing high filling proportion of glass beads, high density polyethylene, talc, ethylene-tetrafluoroethylene-maleic anhydride copolymer, hydrogenated petroleum resin, ultraviolet light absorber, antioxidant and iron oxide yellow are added into a high mixer, and then uniformly mixed by the high mixer and added into a parallel double screw extruder, and the double screw extrusion granulation is carried out to obtain the matt anti-slip wear-resistant co-extruded wood floor fabric particles, and the length-diameter ratio of the parallel double screw extruder is 44:1, and the processing temperature is 180℃.

[0051] Example 2

[0052] The matt anti-slip wear-resistant co-extruded wood floor fabric of the present embodiment is composed of the following components in parts by weight:

[0053] High density polyethylene: 54 parts;

[0054] Low density polyethylene: 10 parts;

[0055] Glass beads: 12 parts;

[0056] Silicon powder: 7 parts;

[0057] Ethylene-tetrafluoroethylene-maleic anhydride copolymer: 7 parts;

[0058] Hydrogenated petroleum resin: 2.2 parts;

[0059] Antioxidant 168: 0.1 part;

[0060] Antioxidant 1010: 0.1 part;

[0061] Ultraviolet light absorber: 0.3 part;

[0062] Iron oxide yellow: 0.3 part.

[0063] The preparation method is as follows:

[0064] (1) Preparation of high flowability glass beads with density of 1.5-2.0 g / cm 3 , compressive strength of 30-80 MPa, average particle size of 40±20 μm, and containing 10-30% hollow glass beads: silica, boron oxide, calcite, gypsum and feldspar are put into a grinding container in a mass ratio of 6:1.2:1.5:0.3:1 to grind into a powder with an average particle size of ≤5 μm, and then added into a high-speed mixer, 0.5% stearic acid is added for high-temperature melting and bonding at 110℃, the stirring speed is 1500 r / min, and the stirring time is 3 h to prepare precursor particles with an average particle size of 35 μm, which are then conveyed by airflow to a glass bead high-temperature vitrification furnace, the vitrification temperature is 1200℃, the vitrification time is 1 second, 1.5% waterproof agent is further added, and the mixture is dried by atomization to prepare high flowability glass beads with a density of 1.723 g / cm 3High flowability glass microbeads with 50 MPa compressive strength, 37 μm average particle size, 17.42% hollow glass microbeads, and 8° angle of repose.

[0065] (2) Preparation of high filling glass microbead low density polyethylene functional masterbatch: The low density polyethylene, antioxidant and ethylene-tetrafluoroethylene-maleic anhydride copolymer were added into a high-speed mixer, and then were added into a parallel twin-screw extruder after being mixed uniformly by the high-speed mixer. The glass microbeads were added from the side of the 7th temperature zone and were added by screw. The masterbatch containing 60% high filling ratio glass microbeads was obtained by twin-screw extrusion granulation. The length-diameter ratio of the parallel twin-screw extruder was 20:1, the screw compression ratio was 2.6:1, and the processing temperature was 200°C.

[0066] (3) Preparation of matt, slip-resistant and wear-resistant co-extruded wood floor fabric: The masterbatch containing high filling ratio glass microbeads, high density polyethylene, silicon powder, ethylene-tetrafluoroethylene-maleic anhydride copolymer, hydrogenated petroleum resin, ultraviolet light absorber, antioxidant and iron oxide yellow were added into a high-speed mixer, and then were added into a parallel twin-screw extruder after being mixed uniformly by the high-speed mixer. The matt, slip-resistant and wear-resistant co-extruded wood floor fabric particles were obtained by twin-screw extrusion granulation. The length-diameter ratio of the parallel twin-screw extruder was 44:1, and the processing temperature was 200°C.

[0067] Comparative Example 1 (different from Example 1 in that no glass microbeads were added, and silicon powder was used instead)

[0068] The co-extruded wood floor fabric prepared in Comparative Example 1 was composed of the following components in parts by weight:

[0069] High density polyethylene: 55 parts;

[0070] Low density polyethylene: 10 parts;

[0071] Silicon powder: 8 parts;

[0072] Talcum powder: 9 parts;

[0073] Ethylene-tetrafluoroethylene-maleic anhydride copolymer: 8 parts;

[0074] Hydrogenated petroleum resin: 2.2 parts;

[0075] Antioxidant 168: 0.1 part;

[0076] Antioxidant 1010: 0.1 part;

[0077] Ultraviolet light absorber: 0.3 part

[0078] Iron oxide yellow: 0.3 part.

[0079] The preparation method was as follows:

[0080] (1) The low-density polyethylene, antioxidant, and ethylene-tetrafluoroethylene-maleic anhydride copolymer are added into a high-speed mixer, mixed uniformly, and then added into a parallel twin-screw extruder, and the silicon powder is added from the side of the 7th temperature zone through the screw, and the twin-screw extrusion granulation is performed to obtain the master batch containing 45% high-filling proportion silicon powder, the length-diameter ratio of the parallel twin-screw extruder is 20:1, the screw compression ratio is 2.6:1, and the processing temperature is 170°C.

[0081] (2) The master batch containing high-filling proportion silicon powder, high-density polyethylene, talcum powder, ethylene-tetrafluoroethylene-maleic anhydride copolymer, hydrogenated petroleum resin, ultraviolet light absorber, antioxidant, and iron oxide yellow are added into a high-speed mixer, mixed uniformly, and then added into a parallel twin-screw extruder, and the twin-screw extrusion granulation is performed to obtain the co-extrusion wood floor fabric particles, the length-diameter ratio of the parallel twin-screw extruder is 44:1, and the processing temperature is 180°C.

[0082] Comparative Example 2 (different from Example 1 in that the glass beads are replaced by silicon powder, the low-density polyethylene is completely replaced by high-density polyethylene, and the high-filling master batch is not prepared in advance)

[0083] The co-extrusion wood floor fabric prepared in Comparative Example 2 is composed of the following components in parts by weight:

[0084] High-density polyethylene: 65 parts;

[0085] Silicon powder: 8 parts;

[0086] Talcum powder: 9 parts;

[0087] Ethylene-tetrafluoroethylene-maleic anhydride copolymer: 8 parts;

[0088] Hydrogenated petroleum resin: 2.2 parts;

[0089] Antioxidant 168: 0.1 part;

[0090] Antioxidant 1010: 0.1 part;

[0091] Ultraviolet light absorber: 0.3 part;

[0092] Iron oxide yellow: 0.3 part.

[0093] The preparation method is as follows: the high-density polyethylene, silicon powder, talcum powder, ethylene-tetrafluoroethylene-maleic anhydride copolymer, hydrogenated petroleum resin, ultraviolet light absorber, antioxidant, and iron oxide yellow are added into a high-speed mixer, mixed uniformly, and then added into a parallel twin-screw extruder, and the twin-screw extrusion granulation is performed to obtain the co-extrusion wood floor fabric particles, the length-diameter ratio of the parallel twin-screw extruder is 44:1, and the processing temperature is 200°C.

[0094] Comparative Example 3

[0095] The difference from Example 1 is that the glass microbead high filling masterbatch is not prepared, and the glass microbead is directly added from the side feeding port, and the others are the same as Example 1.

[0096] Comparative Example 4 (the difference from Example 2 is that the filler is completely replaced by glass microbead)

[0097] The co-extrusion plastic wood floor fabric prepared in Comparative Example 4 is composed of the following components in parts by weight:

[0098] High density polyethylene: 55 parts;

[0099] Low density polyethylene: 15 parts;

[0100] Glass microbead: 20 parts;

[0101] Ethylene-tetrafluoroethylene-maleic anhydride copolymer: 7 parts;

[0102] Hydrogenated petroleum resin: 2.2 parts;

[0103] Antioxidant 168: 0.1 part;

[0104] Antioxidant 1010: 0.1 part;

[0105] Ultraviolet light absorber: 0.3 part;

[0106] Iron oxide yellow: 0.3 part.

[0107] The preparation method is the same as that of Example 2.

[0108] Comparative Example 5

[0109] The difference from Example 2 is that the average particle size of the glass microbead is ≤15 μm, and the preparation method is as follows

[0110] The silica, boron oxide, calcite, gypsum and feldspar are put into a grinding container in a mass ratio of 6:1.2:1.5:0.3:1 to grind into a powder with an average particle size of ≤2.5 μm, and then added into a high-speed mixer, 0.5% of stearic acid by mass fraction is added to melt and bond at a high temperature of 110°C, the stirring speed is 1500 r / min, and the stirring time is 6h to prepare precursor particles with an average particle size of 12 μm, which are transported by airflow to a glass microbead high-temperature vitrification furnace, the vitrification temperature is 1200°C, the vitrification time is 2 seconds, and then 2% of waterproof agent by mass fraction is added, mixed by atomization and dried to prepare high-flowability glass microbeads with a density of 1.923 g / cm 3 , a compressive strength of 50 MPa, an average particle size of 14.7 μm, containing 10.42% of hollow glass microbeads, and a flowability test recumbent angle of 9.5°.

[0111] The others are the same as Example 2.

[0112] Comparative Example 6

[0113] The difference from Example 2 is that the glass microbeads have an average particle size of ≥80 μm, and are prepared as follows:

[0114] Silica, boron oxide, calcite, gypsum and feldspar are put into a grinding container in a mass ratio of 6:1.2:1.5:0.3:1 to grind into a powder with an average particle size of ≤10 μm, and are added into a high-speed mixer, 0.5% stearic acid by mass fraction is added to melt and bond at a high temperature of 110°C, the stirring speed is 1200 r / min, and the stirring time is 1.5 h to prepare precursor particles with an average particle size of 82 μm, which are transported by airflow to a glass microbead high-temperature vitrification furnace, the vitrification temperature is 1200°C, the vitrification time is 1.5 seconds, 1.5% waterproof agent by mass fraction is further added, and the mixture is dried by atomization to prepare high-flowability glass microbeads with a density of 1.541 g / cm 3 , a compressive strength of 50 MPa, an average particle size of 85 μm, containing 24.18% hollow glass microbeads, and a flowability test recumbent angle of 5°.

[0115] The rest is the same as Example 2.

[0116] The performance tests are as follows.

[0117] The fabric particles of the examples and comparative examples are respectively injected into a mold by an injection molding machine to prepare 100×100×4 mm test panels, and the obtained co-extrusion wood floor fabrics are respectively recorded as Examples 1-2 and Comparative Examples 1-6. The detection is carried out according to the national standard GB / T8807-1988 “Plastic mirror surface gloss test method”. The other performances are respectively tested according to the relevant standards, and the test results are shown in Table 1.

[0118] Table 1 Physical indexes of the prepared matt anti-slip wear-resistant co-extrusion wood floor fabric

[0119]

[0120] Conclusion: According to the data of Example 1 and Comparative Example 1-3, it can be concluded that within the range of the filler composition and preparation sequence protected by the present application, the matt wear-resistant plastic wood floor fabric material obtained has better matt property and wear resistance than the fabric material prepared without strictly following the parameter range defined in the protection scope of the present application. As can be seen from Example 2 and Comparative Examples 4-6, the matt wear-resistant plastic wood floor fabric material prepared by using the glass microbead specifications and addition ratio selected in the present application not only has excellent matt property, but also has strong tensile strength and wear resistance.

[0121] The difference between example 1 and comparative example 3 is that the high filling master batch containing glass beads is not prepared in advance, and the glass beads are directly added to the side feed in comparative example 3. As shown in the above table, compared with directly adding glass beads to the side feed, the material can be filled with more glass beads, and the mixing with the resin is better, and the wear resistance and tensile strength are better.

[0122] The raw materials and equipment used in the present application are conventional raw materials and equipment in the art unless otherwise specified; the methods used in the present application are conventional methods in the art unless otherwise specified.

[0123] The above is only an embodiment of the present application, and does not limit the present application in any way. Any simple modification, change and equivalent transformation of the above embodiment according to the technical essence of the present application still belongs to the protection scope of the technical solution of the present application.

[0124] The upper and lower limit values and interval values of the material ratio and process parameters involved in the present application can realize the present application, which are not listed one by one.

Claims

1. A matte, non-slip, and wear-resistant co-extruded wood flooring fabric, characterized in that The weight parts of each component based on 100 parts of the total weight parts are: 50-60 parts of high-density polyethylene; 8-15 parts of low-density polyethylene; 8-15 parts of glass beads; 5-10 parts of filler; 7-11 parts of bonding agent; 2 to 4 parts of tackifier; Antioxidant 168 0.1-0.2 parts; Antioxidant 1010 0.1-0.2 parts; 0.3-0.5 parts of ultraviolet light absorber; Pigment 0.2-0.5 parts; The glass microspheres are composed of a mixture of solid glass microspheres, hollow glass microspheres, and glass microsphere fragments. The proportions of solid glass microspheres, hollow glass microspheres, and glass microsphere fragments are 50-68%, 18-34%, and 5-16%, respectively, based on the total weight of the glass microspheres. The volume of spherical microspheres is not less than 80%. The surface of the glass microspheres is treated with a waterproofing agent. The filler is at least one of talc, calcium carbonate, silica powder, and quartz sand, with a particle size range of 1000-1500 mesh. The bonding agent is ethylene-tetrafluoroethylene-maleic anhydride copolymer, and the tackifier is hydrogenated petroleum resin. The matte, non-slip, and wear-resistant co-extruded wood flooring fabric is prepared by the following steps: 1) Low-density polyethylene, 30-36% antioxidant, and 30-36% adhesive additive are added to a high-speed mixer, mixed uniformly in the high-speed mixer, and then added to a universal three-stage parallel twin-screw extruder. A side feed port is added in the 5th to 8th temperature zone from the main feed port. Glass microbeads are added through the side feed port through a screw conveyor, and extrusion granulation is performed to obtain a masterbatch containing a high filling ratio of glass microbeads. The length-to-diameter ratio of the parallel twin-screw extruder is (16-22):1, the screw compression ratio is (2-3:1), and the processing temperature is 170-200°C. The three sections are a feed section, a compression section, and a metering section. 2) Add the above masterbatch, high-density polyethylene, remaining antioxidant, ultraviolet light absorber, remaining adhesive additive, filler, tackifier and pigment into a high-speed mixer, mix them evenly in the high-speed mixer and add them into a parallel twin-screw extruder with an aspect ratio of (42-46): 1 and a processing temperature of 180-220℃ for extrusion granulation. 。 2. The matte, non-slip, and wear-resistant co-extruded wood flooring fabric according to claim 1, characterized in that The weight parts of each component based on 100 parts of the total weight parts are: 53-56 parts of high-density polyethylene; 9-12 parts of low-density polyethylene; 8-13 parts of glass beads; 6 to 9 parts of filler; 7-9 parts of bonding agent; 2-3 parts of tackifier; Antioxidant 168 0.1-0.2 parts; Antioxidant 1010 0.1-0.2 parts; 0.3-0.4 parts of ultraviolet light absorber; 0.3-0.4 parts of pigment.

3. The matte, non-slip, and wear-resistant co-extruded wood flooring fabric according to claim 1 or 2, characterized in that: The glass microspheres are prepared by the following steps: 1) Put silicon dioxide, boron oxide, calcite, gypsum and feldspar into a grinding container in a mass ratio of (5.5-6.5): (1.1-1.3): (1.4-1.7): (0.28-0.32): 1 and grind into powder with an average particle size of 1-15 μm; 2) adding the powder prepared in step 1) into a high-speed mixer, adding 0.5-2% by mass of stearic acid, and melting and bonding at a high temperature of 100-150°C, rotating at a speed of 1000-1500 r / min, and stirring for 2-6 hours to prepare precursor particles with an average particle size of 15-80 μm; 3) The precursor particles prepared in step 2) are conveyed by airflow to a high-temperature vitrification furnace for glass microspheres. The vitrification temperature is controlled at 800-1300° C. and the vitrification time is 0.8-2 seconds. After sorting and refining, a preliminary product containing solid glass microspheres, hollow glass microspheres, and glass microsphere fragments is obtained. 4) The preliminary product prepared in step 3) is subjected to surface treatment, and a waterproofing agent accounting for 0.5-5% of the mass fraction of the preliminary product is added, and a density of 1.5-2.0 g / cm is prepared by atomization, mixing and drying. 3 , compressive strength 30 ~ 80MPa, average particle size 15 ~ 80μm high fluidity glass microbead powder.

4. The matte, non-slip, and wear-resistant co-extruded wood flooring fabric according to claim 3, characterized in that: The ultraviolet light absorber is phenyl salicylate.

5. The matte, non-slip, and wear-resistant co-extruded wood flooring fabric according to claim 4, characterized in that: The flowability of the high-flow glass microbead powder requires that it can flow out naturally in the silo, and the repose angle measured by the powder property instrument is ≤10°.

6. The matte, non-slip, and wear-resistant co-extruded wood flooring fabric according to claim 5, characterized in that: Taking the total weight of the glass beads as 100%, the proportions of solid glass beads, hollow glass beads and glass bead fragments are 54-66%, 20-32% and 7-14% respectively.

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