CN111364113A - Heat-dissipation slow-release antibacterial artificial grass - Google Patents

Heat-dissipation slow-release antibacterial artificial grass Download PDF

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CN111364113A
CN111364113A CN202010112198.8A CN202010112198A CN111364113A CN 111364113 A CN111364113 A CN 111364113A CN 202010112198 A CN202010112198 A CN 202010112198A CN 111364113 A CN111364113 A CN 111364113A
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silver
silicon dioxide
artificial grass
ammonia
parts
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朱江峰
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D01F1/103—Agents inhibiting growth of microorganisms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds

Abstract

The invention discloses a heat-dissipation slow-release antibacterial artificial grass which comprises a substrate and artificial grass filaments arranged on the substrate, wherein the artificial grass filaments are prepared from the following components in parts by weight: 5-10 parts of nano-silver-loaded silicon dioxide, 75-95 parts of matrix resin, 1-2 parts of antioxidant, 1-2 parts of slipping agent, 3-10 parts of color master batch and 2-5 parts of light stabilizer. The heat dissipation slow-release type antibacterial artificial grass has good heat dissipation performance and long antibacterial timeliness.

Description

Heat-dissipation slow-release antibacterial artificial grass
Technical Field
The invention relates to the technical field of artificial grass, in particular to heat dissipation slow-release type antibacterial artificial grass.
Background
Because the traditional artificial grass does not have a heat dissipation function or has poor heat dissipation performance, the temperature of the grass filaments and the lawn system is much higher than that of natural grass under the same environment, so that a series of adverse effects are generated, for example, the grass filaments are easy to soften under the irradiation of the sun or high-temperature environment, the overall movement performance of the artificial lawn is reduced, and the overall comfort of the lawn is affected; the high temperature of the artificial turf may also cause injury to the athlete, such as skin burns; the grass filaments and the lawn are easy to age and have short service life and the like when being in a high-temperature state for a long time.
In addition, the traditional artificial lawn does not have an antibacterial function, and in a natural environment, along with the increase of the use time of the lawn, a large number of bacteria can be bred on the surface of the lawn, and if the bacteria cannot be effectively inhibited, the bacteria can have a bad influence on the health of people; if the sterilizing liquid is used for sterilization, the sterilizing liquid needs to be regularly sprayed at intervals, the method is troublesome and high in cost, and the service life of the lawn can be shortened due to the use of the sterilizing liquid. At present, although antibacterial artificial grass is developed, the antibacterial artificial grass has short antibacterial timeliness and does not have long-term effective antibacterial performance.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to: the heat-dissipation slow-release antibacterial artificial grass is good in heat dissipation performance and long in antibacterial timeliness.
The purpose of the invention is realized by adopting the following technical scheme:
the heat-dissipation slow-release antibacterial artificial grass comprises a substrate and artificial grass filaments arranged on the substrate, wherein the artificial grass filaments are prepared from the following components in parts by weight: 5-10 parts of nano-silver-loaded silicon dioxide, 75-95 parts of matrix resin, 1-2 parts of antioxidant, 1-2 parts of slipping agent, 3-10 parts of color master batch and 2-5 parts of light stabilizer.
The artificial grass filaments are added with silicon dioxide loaded with nano silver. The nano silver is an inorganic antibacterial material developed by adopting a nano technology, has excellent antibacterial effect and safety which cannot be compared with the traditional inorganic antibacterial agent due to quantum effect, small-size effect and extremely large specific surface area, and is an antibacterial agent with long-acting property, wide antibacterial range and heat resistance. The silica has a large specific surface area which can reach 100 square meters per gram and has a porous microstructure, and the nano silver is filled and adsorbed in the micropores and is desorbed from the micropores of the silica to be slowly released along with the passage of time, so that the artificial turf can achieve a long-term effective antibacterial effect. In addition, the silicon dioxide and the nano silver have heat-conducting property, and the two materials are matched for use, so that the heat-conducting effect of the artificial turf is better, and the integral temperature of the turf is effectively reduced; the silicon dioxide is used as an inorganic filler, so that the tensile strength and the wear resistance of the grass filaments can be enhanced, and the silicon dioxide loaded with the nano silver is filled in the grass filaments, so that the wear resistance effect is better.
As a further example, the nanosilver-loaded silica is prepared as follows,
(1) dissolving silver nitrate solid in deionized water, stirring for 30min at room temperature to prepare a silver nitrate aqueous solution, adding a certain amount of ammonia water to prepare a silver-ammonia complex solution, wherein the silver ammonia ions in the silver-ammonia complex solution are 0.5mol/L, and adding a certain amount of hydrazine hydrate reducing agent into the silver-ammonia complex solution to obtain a nano silver solution;
(2) pouring silicon dioxide into deionized water, and fully stirring for 20min to uniformly disperse the silicon dioxide into the water to obtain a silicon dioxide suspension;
(3) mixing the nano silver solution with the silicon dioxide suspension, adding sodium dodecyl benzene sulfonate aqueous solution, heating to 70 ℃, uniformly stirring for 1 hour, keeping the temperature for 1 hour, and filtering to obtain precipitated silicon dioxide nano silver; and washing and drying the precipitate by using absolute ethyl alcohol to obtain the nano silver-loaded silicon dioxide material.
In this embodiment, silver nitrate is reduced to nano silver, and then nano silver is adsorbed by silica, thereby preparing silica loaded with nano silver. The operation method is simple and convenient.
As a further example, the nanosilver-loaded silica is prepared as follows,
(1) stirring and dispersing silicon dioxide into deionized water to obtain a silicon dioxide suspension, wherein the weight volume ratio of the silicon dioxide to the water is 10 g/L;
(2) dissolving silver nitrate in deionized water, and adding ammonia water to prepare a silver complexing ammonia solution, wherein the concentration of the silver nitrate in the complexing solution is 0.85mol/L, and the concentration of ammonia is 1.5 mol/L;
(3) adding the silver-ammonia complex solution into the silicon dioxide suspension, wherein the volume ratio of the suspension to the silver-ammonia complex solution is 1:3, and adsorbing silver ammonia ions for 5 hours at 40 ℃ to ensure that the silver ammonia ions are adsorbed in the silicon dioxide;
(4) adding propylene glycol with the molar concentration of 0.65mol/L into the mixed solution of the silver-ammonia solution and the silicon dioxide suspension in the step 3, adding 1mol/L ammonia water, adding silicate ester with the molar concentration of 0.15mol/L, and reacting for 8 hours at 35 ℃ to obtain white suspension;
(5) and centrifugally washing the white suspension by using deionized water, dispersing the white suspension into water, adding a reducing agent citric acid with the molar concentration of 0.5mol/L, stirring the mixture at 45 ℃ for reaction for 4 hours, centrifugally washing by using the deionized water, and drying to obtain the nano-silver-loaded silicon dioxide material.
In the embodiment, the silver ions are adsorbed by adopting a step-by-step adsorption method, so that the utilization efficiency of the silver ions is improved. Firstly, adding a complexing silver ammonia solution into a silicon dioxide suspension to fill the micropores of the silicon dioxide with silver ions; and the second step of adsorption is realized by adding the mixed solution into propylene glycol, so that silicon dioxide is uniformly dispersed, and then ammonia water is added, so that the residual silver ions form silver ammonia ions, so that the silicon dioxide adsorbs the silver ammonia ions on the surface, and secondly, the silicon dioxide is wrapped and fixed by silicate ester, so that the silver ion amount attached to the surface of the silicon dioxide is increased, and further, the antibacterial capability of the grass filaments is enhanced, and the antibacterial aging of the grass filaments is prolonged.
As a further example, the artificial grass filaments are prepared as follows,
weighing the components, putting the components into a high mixing kettle, uniformly mixing, and then extruding, drafting, sizing and rolling the components by using a single-screw extruder unit to obtain the artificial turf; wherein, the temperature of the single-screw extruder is controlled at 250 ℃ and the rotating speed is controlled at 2000rmp and 170 ℃.
As a further example, the matrix resin is one or more of LLDPE, HDPE, PP, POE.
As a further example, the antioxidant is one or more of 2, 6-tertiary butyl-4-methylphenol, bis (3, 5-tertiary butyl-4-hydroxyphenyl) sulfide, dodecyl alcohol ester and thiodipropionic acid diester.
As further examples, the light stabilizers are benzoic acid (2,2,6, 6-tetramethyl-4-hydroxypiperidine) ester, bis (2,2,6, 6-tetramethyl-4-hydroxypiperidine) sebacate, nitrilotris [ acetic acid (2,2,6, 6-tetramethyl-4-hydroxypiperidine) ester ] and N, N' -bis (2,2,6, 6-tetramethylpiperidinyl) hexanediamine, tris (1,2,2,6, 6-pentamethyl-4-hydroxypiperidine) phosphite, bis (1,2,2,6, 6-pentamethyl-4-hydroxypiperidine) sebacate and bis (1,2,2,6, 6-pentamethyl-4-hydroxypiperidine) ester.
As a further example, the slip agent is one of butyl stearate and ethylene bis stearamide.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the nano silver is an inorganic antibacterial material developed by adopting a nano technology, and has quantum effect, small-size effect and extremely large specific surface area, so that the nano silver has excellent antibacterial effect and safety which cannot be compared with the traditional inorganic antibacterial agent, and is an antibacterial agent with long-acting property, wide antibacterial range and heat resistance. The silica has a large specific surface area which can reach 100 square meters per gram and has a porous microstructure, the nano silver is filled and adsorbed in the micropores, the nano silver is desorbed from the micropores of the silica and is slowly released along with the passage of time, and the migration capability of the silica is combined, namely, the silica in the middle of the grass filaments is slowly migrated to the surfaces of the grass filaments, so that the nano silver is slowly and effectively provided for the surfaces of the grass filaments, the desorbed nano silver can release silver ions, the silver ions on the surfaces of the grass filaments can be maintained at a certain concentration, and the artificial grass filaments can achieve a long-term and effective antibacterial effect.
2. The silicon dioxide and the nano silver have heat-conducting property, and the two materials are matched for use, so that the heat-conducting effect of the artificial turf is better, and the integral temperature of the turf is effectively reduced.
3. The silicon dioxide is used as an inorganic filler, so that the tensile strength and the wear resistance of the grass filaments can be enhanced, and the silicon dioxide loaded with the nano silver is filled into the grass filaments, so that the wear-resistant effect is better; and the grass filaments are not easy to soften, thereby ensuring the overall comfort of the lawn.
Drawings
FIG. 1 is a microscopic analysis diagram of nano silver particles on the surface of artificial grass filaments after 1 month;
FIG. 2 is a microscopic analysis diagram of the nano silver particles on the surface of the artificial grass filaments after 3 months;
fig. 3 is a microscopic analysis view of the nano silver particles on the surface of the artificial turf yarn after 6 months.
Detailed Description
The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.
The preparation method of the nano-silver loaded silicon dioxide comprises the following steps:
example 1:
(1) dissolving silver nitrate solid in deionized water, stirring for 30min at room temperature to prepare a silver nitrate aqueous solution, adding a certain amount of ammonia water to prepare a silver-ammonia complex solution, wherein the silver ammonia ions in the silver-ammonia complex solution are 0.5mol/L, and adding a certain amount of hydrazine hydrate reducing agent into the silver-ammonia complex solution to obtain a nano silver solution;
(2) pouring silicon dioxide into deionized water, and fully stirring for 20min to uniformly disperse the silicon dioxide into the water to obtain a silicon dioxide suspension;
(3) mixing the nano silver solution with the silicon dioxide suspension, adding sodium dodecyl benzene sulfonate aqueous solution, heating to 70 ℃, uniformly stirring for 1 hour, keeping the temperature for 1 hour, and filtering to obtain precipitated silicon dioxide nano silver; and washing and drying the precipitate by using absolute ethyl alcohol to obtain the nano silver-loaded silicon dioxide material.
Example 2:
(1) stirring and dispersing silicon dioxide into deionized water to obtain a silicon dioxide suspension, wherein the weight volume ratio of the silicon dioxide to the water is 10 g/L;
(2) dissolving silver nitrate in deionized water, and adding ammonia water to prepare a silver complexing ammonia solution, wherein the concentration of the silver nitrate in the complexing solution is 0.85mol/L, and the concentration of ammonia is 1.5 mol/L;
(3) adding the silver-ammonia complex solution into the silicon dioxide suspension, wherein the volume ratio of the suspension to the silver-ammonia complex solution is 1:3, and adsorbing silver ammonia ions for 5 hours at 40 ℃ to ensure that the silver ammonia ions are adsorbed in the silicon dioxide;
(4) adding propylene glycol with the molar concentration of 0.65mol/L into the mixed solution of the silver-ammonia solution and the silicon dioxide suspension in the step 3, adding 1mol/L ammonia water, adding silicate ester with the molar concentration of 0.15mol/L, and reacting for 8 hours at 35 ℃ to obtain white suspension;
(5) and centrifugally washing the white suspension by using deionized water, dispersing the white suspension into water, adding a reducing agent citric acid with the molar concentration of 0.5mol/L, stirring the mixture at 45 ℃ for reaction for 4 hours, centrifugally washing by using the deionized water, and drying to obtain the nano-silver-loaded silicon dioxide material.
The preparation method of the artificial grass filaments comprises the following steps:
(1) the components are weighed according to the following parts by weight, 5-10 parts of silica loaded with nano-silver, 75-95 parts of matrix resin, 1-2 parts of antioxidant, 1-2 parts of slipping agent, 3-10 parts of color master batch and 2-5 parts of light stabilizer;
(2) putting the weighed raw materials into a high mixing kettle, uniformly mixing, and then extruding, drafting, sizing and rolling by using a single-screw extruder unit to obtain the artificial grass filaments; wherein, the temperature of the single-screw extruder is controlled at 250 ℃ and the rotating speed is controlled at 2000rmp and 170 ℃.
And (3) performance detection:
detection of antibacterial performance 1:
the detection method comprises the following steps: the artificial grass filaments prepared by using the silica loaded with nano silver of example 2 were subjected to surface microscopic analysis, comparing the number of nano silver particles on the surface of the artificial grass filaments in different time periods, as shown in fig. 1-3.
By observing fig. 1-3, it can be known that the amount of the nano silver particles on the surface of the grass filaments can be continuously desorbed from the silica micropores with the passage of time. The nano silver can release silver ions, and the silver ions are firmly adsorbed on the negatively charged cell wall by virtue of electrostatic attraction and further penetrate through the cell wall to enter a bacterium body, so that the protein of the cell is solidified, the activity of the cell enzyme is damaged, and the cell is killed due to the loss of the division capability. Therefore, as time goes on, the more the nano silver is distributed on the surface of the artificial grass filament, the higher the concentration of silver ions can be released, and the stronger the antibacterial and bactericidal effects of the artificial grass filament are.
Heat dissipation performance detection 2:
the detection method comprises the following steps: an infrared scanning temperature measuring gun is used for testing the surface temperature of the lawn in the natural environment and under the sun irradiation in different seasons and different time periods. The control group was a conventional artificial lawn, and the experimental group was a lawn added with the nanosilver-loaded silica of example 2.
TABLE 1 SURFACE TEMPERATURE RECORDING TABLE FOR MAN-MADE STRAW IN DIFFERENT seasons AND TIMES
Figure BDA0002390411950000081
As can be seen from table 1 above, the artificial turf of the present invention has a lower surface temperature than the conventional turf, both in different seasons and at different time periods. The artificial turf of the invention is added with the silicon dioxide and the nano silver, thereby well conducting the heat of the artificial turf to the environment and effectively reducing the overall temperature of the turf.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (8)

1. The heat-dissipation slow-release antibacterial artificial grass is characterized in that: the artificial grass comprises a substrate and artificial grass filaments arranged on the substrate, wherein the artificial grass filaments are prepared from the following components in parts by weight: 5-10 parts of nano-silver-loaded silicon dioxide, 75-95 parts of matrix resin, 1-2 parts of antioxidant, 1-2 parts of slipping agent, 3-10 parts of color master batch and 2-5 parts of light stabilizer.
2. The heat-dissipating slow-release type antibacterial artificial grass according to claim 1, wherein: the nano-silver-loaded silicon dioxide is prepared by the following method,
(1) dissolving silver nitrate solid in deionized water, stirring for 30min at room temperature to prepare a silver nitrate aqueous solution, adding a certain amount of ammonia water to prepare a silver-ammonia complex solution, wherein the silver ammonia ions in the silver-ammonia complex solution are 0.5mol/L, and adding a certain amount of hydrazine hydrate reducing agent into the silver-ammonia complex solution to obtain a nano silver solution;
(2) pouring silicon dioxide into deionized water, and fully stirring for 20min to uniformly disperse the silicon dioxide into the water to obtain a silicon dioxide suspension;
(3) mixing the nano silver solution with the silicon dioxide suspension, adding sodium dodecyl benzene sulfonate aqueous solution, heating to 70 ℃, uniformly stirring for 1 hour, keeping the temperature for 1 hour, and filtering to obtain precipitated silicon dioxide nano silver; and washing and drying the precipitate by using absolute ethyl alcohol to obtain the nano silver-loaded silicon dioxide material.
3. The heat-dissipating slow-release type antibacterial artificial grass according to claim 1, wherein: the nano-silver-loaded silicon dioxide is prepared by the following method,
(1) stirring and dispersing silicon dioxide into deionized water to obtain a silicon dioxide suspension, wherein the weight volume ratio of the silicon dioxide to the water is 10 g/L;
(2) dissolving silver nitrate in deionized water, and adding ammonia water to prepare a silver complexing ammonia solution, wherein the concentration of the silver nitrate in the complexing solution is 0.85mol/L, and the concentration of ammonia is 1.5 mol/L;
(3) adding the silver-ammonia complex solution into the silicon dioxide suspension, wherein the volume ratio of the suspension to the silver-ammonia complex solution is 1:3, and adsorbing silver ammonia ions for 5 hours at 40 ℃ to ensure that the silver ammonia ions are adsorbed in the silicon dioxide;
(4) adding propylene glycol with the molar concentration of 0.65mol/L into the mixed solution of the silver-ammonia solution and the silicon dioxide suspension in the step 3, adding 1mol/L ammonia water, adding silicate ester with the molar concentration of 0.15mol/L, and reacting for 8 hours at 35 ℃ to obtain white suspension;
(5) and centrifugally washing the white suspension by using deionized water, dispersing the white suspension into water, adding a reducing agent citric acid with the molar concentration of 0.5mol/L, stirring the mixture at 45 ℃ for reaction for 4 hours, centrifugally washing by using the deionized water, and drying to obtain the nano-silver-loaded silicon dioxide material.
4. The heat-dissipating slow-release type antibacterial artificial grass according to claim 1, wherein: the artificial grass filaments are prepared by the following method,
weighing the components, putting the components into a high mixing kettle, uniformly mixing, and then extruding, drafting, sizing and rolling the components by using a single-screw extruder unit to obtain the artificial turf; wherein, the temperature of the single-screw extruder is controlled at 250 ℃ and the rotating speed is controlled at 2000rmp and 170 ℃.
5. The heat-dissipating slow-release type antibacterial artificial grass according to claim 1, wherein: the matrix resin is one or more of LLDPE, HDPE, PP and POE.
6. The heat-dissipating slow-release type antibacterial artificial grass according to claim 1, wherein: the antioxidant is one or more of 2, 6-tertiary butyl-4-methylphenol, bis (3, 5-tertiary butyl-4-hydroxyphenyl) sulfide, dodecyl alcohol ester and thiodipropionic acid diester.
7. The heat-dissipating slow-release type antibacterial artificial grass according to claim 1, wherein: the light stabilizer is benzoic acid (2,2,6, 6-tetramethyl-4-hydroxypiperidine) ester, sebacic acid bis (2,2,6, 6-tetramethyl-4-hydroxypiperidine) ester, nitrilotris [ acetic acid (2,2,6, 6-tetramethyl-4-hydroxypiperidine) ester ] and N, one or more of N' -bis (2,2,6, 6-tetramethylpiperidyl) hexamethylenediamine, tris (1,2,2,6, 6-pentamethyl-4-hydroxypiperidine) phosphite, bis (1,2,2,6, 6-pentamethyl-4-hydroxypiperidine) sebacate, and bis (1,2,2,6, 6-pentamethyl-4-hydroxypiperidine) 2-ethyl-2- (4-hydroxy-3, 5-t-butylbenzyl) malonate.
8. The heat-dissipating slow-release type antibacterial artificial grass according to claim 1, wherein: the slipping agent is one of butyl stearate and ethylene bis stearamide.
CN202010112198.8A 2020-02-24 2020-02-24 Heat-dissipation slow-release antibacterial artificial grass Pending CN111364113A (en)

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EP4286574A1 (en) * 2022-06-03 2023-12-06 Polytex Sportbeläge Produktions-GmbH Artifical turf with anti-slip agent reservoir for soccer or rugby
EP4286573A1 (en) * 2022-06-03 2023-12-06 Polytex Sportbeläge Produktions-GmbH Artifical turf with anti-slip agent reservoir
WO2023232999A1 (en) * 2022-06-03 2023-12-07 Polytex Sportbeläge Produktions-Gmbh Artificial turf with anti-slip agent reservoir
WO2023232992A1 (en) * 2022-06-03 2023-12-07 Polytex Sportbeläge Produktions-Gmbh Artificial turf with anti-slip agent reservoir for soccer or rugby

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EP4286573A1 (en) * 2022-06-03 2023-12-06 Polytex Sportbeläge Produktions-GmbH Artifical turf with anti-slip agent reservoir
WO2023232999A1 (en) * 2022-06-03 2023-12-07 Polytex Sportbeläge Produktions-Gmbh Artificial turf with anti-slip agent reservoir
WO2023232992A1 (en) * 2022-06-03 2023-12-07 Polytex Sportbeläge Produktions-Gmbh Artificial turf with anti-slip agent reservoir for soccer or rugby

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