CN212175385U - Integrally-recyclable anti-skidding artificial lawn - Google Patents
Integrally-recyclable anti-skidding artificial lawn Download PDFInfo
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Abstract
The utility model discloses an artificial lawn of whole recoverable antiskid, including artificial grass silk, base cloth layer, skid resistant course, artificial grass silk tufting is in on the base cloth layer, the skid resistant course bonds the base cloth layer is kept away from artificial grass silk's one side. The utility model provides an artificial lawn composed of artificial grass filaments, a base cloth layer and an anti-slip layer, which adopts a thermoplastic elastomer coating, a PVC coating or a silica gel coating, has an anti-slip function, is suitable for wood floors, ceramic tiles or marble floors, and solves the problems of floor abrasion and sliding generation in indoor use of the leisure artificial lawn; meanwhile, the newly developed lawn has stable size when being used for a long time at 70 ℃, is an environment-friendly product and can be integrally recycled.
Description
Technical Field
The utility model relates to an artificial turf technical field, more specifically the utility model relates to a whole recoverable anti-skidding artificial turf that says so.
Background
Artificial turf has been used for more than 40 years, and the usual artificial turf has been produced by tufting grass filaments into a base fabric layer and then applying a LATEX of LATEX on the semifinished product. The artificial turf is mainly applied to sports fields such as football sports, hockey sports, rugby sports and the like at the beginning. With the global demand for a high-quality living environment, the artificial turf has been rapidly developed in the field of leisure, so to speak, in line with sports artificial turf. According to global sales statistics, the leisure artificial turf sales have overtaken the sports artificial turf in recent two years. At present, artificial turf enterprises mainly focus on the shape of grass filaments, DTEX, combination and turf specifications aiming at the development of leisure artificial turf, the bottom back of the turf is only LATEX or PU, the LATEX or PU bottom back is suitable for being paved on a courtyard cement foundation or a broken stone foundation, if the bottom back is paved on a balcony or an entrance door, a wood floor or a ceramic tile glaze surface can be damaged, the sliding can be generated, the problems directly influence the sales volume of the leisure artificial turf, meanwhile, the global advocation of developing a green environment-friendly recyclable artificial turf is promoted, and the problems are urgently needed to be solved.
Therefore, how to provide an integrally recyclable anti-skid artificial lawn with anti-skid function and suitable for wood floors, ceramic tiles or marble floors is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an artificial lawn of antiskid that wholly can retrieve aims at solving above-mentioned technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an artificial turf of whole recoverable antiskid, includes artificial grass silk, base cloth layer, skid resistant course, artificial grass silk tufting is in on the base cloth layer, the skid resistant course bonds and is in the one side of base cloth layer is kept away from artificial grass silk.
Through the technical scheme, the utility model provides an artificial lawn consisting of artificial grass filaments, a base cloth layer and an anti-slip layer, the anti-slip layer has an anti-slip function, is suitable for wood floors, ceramic tiles or marble floors, and solves the problems of floor abrasion and sliding generation in indoor use of the leisure artificial lawn; meanwhile, the newly developed lawn has stable size when being used for a long time at 70 ℃, has the shrinkage rate of less than 0.5 percent, is an environment-friendly product, and can be integrally recycled.
Furthermore, this experiment is novel artificial turf's that relates to base cloth adopts thermoplastic elastomer, PVC or silica gel material, all is thermoplastic material, and the lawn is reaching life back, through the sanitized lawn, can directly smash through the rubbing crusher, and the grass silk after smashing and the garrulous granule in end back can carry out the reutilization through twin-screw manufacturing master batch, and the antiskid artificial turf is whole recoverable.
Furthermore, the integrally recyclable anti-skidding artificial lawn has the advantages that the selected thermoplastic elastomer, PVC or silica gel material has excellent heat resistance and toughness, and the shrinkage rate is less than 0.5%; the conventional carboxylated styrene-butadiene bottom back or the conventional polyurethane bottom back often has the problem of cracking at seams, and the shrinkage rate is 0.5-2% according to measurement.
Preferably, in the above integrally recyclable anti-slip artificial turf, the anti-slip layer is integrally formed of a thermoplastic elastomer material on a surface of the base fabric layer away from the artificial grass filaments. The thermoplastic elastomer coating, the PVC coating or the silica gel coating is adopted to replace the traditional LATEX LATEX or PU LATEX coating, has the antiskid function and is suitable for wood floors, ceramic tiles or marble floors.
The thermoplastic elastomer material (TPE) may be selected from styrene, olefin, vinyl chloride, polyurethane, and ethylene thermoplastic elastomers, and more preferably styrene, olefin, urethane, and ethylene thermoplastic elastomers.
Wherein:
the styrene-based thermoplastic elastomer (SBC) refers to styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-ethylene-butylene-styrene (SEBS), styrene-ethylene-propylene-styrene (SEPS), preferably styrene-ethylene-butylene-styrene (SEBS), styrene-ethylene-propylene-styrene (SEPS); the SEBS takes polystyrene as a terminal segment, and polybutadiene is hydrogenated to obtain a linear triblock copolymer taking an ethylene-butylene copolymer as a middle elastic block, does not contain unsaturated double bonds, and has good stability and aging resistance; the SEPS prepared by hydrogenating unsaturated double bonds in the SIS has a plurality of excellent performances, greatly improves the degradation performance of oxidation or crosslinking reaction such as heat resistance, oxidation resistance, ozone resistance, ultraviolet irradiation resistance and the like, simultaneously improves the service temperature of the product, and improves the chemical performances such as weather resistance, acid and alkali resistance and the like, as well as wear resistance and flexibility. The styrene thermoplastic elastomer is suitable for producing the artificial turf antiskid layer with low requirement on the strength of the bottom and the back and low cost.
The olefinic thermoplastic elastomer can be classified into TPO, TPV and POE according to the preparation method, the thermoplastic polyolefin elastomer (TPO) is a blend of rubber having a soft segment (more than 20%) and polyolefin having a hard segment, and the rubber components are Ethylene Propylene Diene Monomer (EPDM), Nitrile Butadiene Rubber (NBR), butyl rubber (IIR) and Natural Rubber (NR); the polyolefin components are mainly polypropylene (PP) and Polyethylene (PE). More used is a blend of EPDM and PP. The vulcanized elastomer after TPO vulcanization is named as TPV polypropylene and ethylene propylene diene monomer blend, when the TPV polypropylene and ethylene propylene diene monomer blend is subjected to melt blending, a crosslinking agent for vulcanizing the TPV polypropylene and ethylene propylene diene monomer blend is added, the force of mechanical high shearing of an internal mixer, a screw extruder and the like is utilized, particles of completely vulcanized EPDM rubber are fully dispersed in a PP matrix in micron-sized sizes (less than 1 micron), the heat resistance and low compression deformation performance of the vulcanized rubber are combined with the easy processing characteristic of thermoplastic plastics, and the TPO/EPDM rubber blend has the advantages of wide service temperature range, wide hardness requirement (25A-65D), excellent ageing resistance, ozone resistance and ultraviolet resistance. POE is ethylene octene copolymer, it is the thermoplastic elastomer that adopts ethylene and octene to realize the in situ polymerization, the soft chain of octene curls the structure and crystalline ethylene chain is regarded as the physical cross-linking point, make the material have excellent toughness and have good processability, have fine ageing-resistant performance at the same time, have better fluidity, have higher impact strength and elongation at break, use as the non-slip mat material soft, toughness is good; the olefinic thermoplastic elastomer is suitable for production with certain requirements on the strength of the bottom and the back, and compared with the styrene thermoplastic elastomer, the raw material cost is slightly higher.
The urethane thermoplastic elastomer is a linear block copolymer prepared by melt transesterification of a mixture of dicarboxylic acid and its derivatives, long-chain diol (molecular weight 600-6000) and low-molecular weight diol. The material has all the properties of vulcanized rubber, especially compression resistance and excellent bending resistance under the conditions of room temperature and low temperature.
Ethylene-based thermoplastic elastomers (TPEs) such as crystalline polyethylene and vinyl acetate copolymers (EVA), crystalline polyethylene and ethyl acrylate copolymers (EEA). Further, EVA is characterized by good flexibility, good flexibility at-50 ℃, transparency, surface gloss, good chemical stability, good aging resistance and ozone resistance, no toxicity, good intermingling property with filler, coloring property and molding processability. EEA is a soft thermoplastic with lower crystallinity than PE, has good low temperature and flexibility, good thermal stability in processing, larger filler acceptance, excellent bending crack resistance and environmental stress crack resistance, larger elasticity and the like. The ethylene thermoplastic elastomer master batch is mainly mixed with polyethylene, polypropylene, polyvinyl chloride, natural/synthetic rubber and the like for use, and can improve the impact resistance, the processability, the weather resistance and the like of the artificial turf antiskid layer.
Preferably, in the above one integrally recyclable anti-slip artificial turf, an adhesive layer is provided between the base fabric layer and the anti-slip layer, and the dry glue amount of the adhesive layer is 0 to 1.2kg/m 2. The base cloth layer and the anti-slip layer can be effectively attached through a bonding method, the grass silk is fixed, and the processing adaptability is stronger.
Preferably, in the above one integrally recyclable anti-slip artificial turf, the adhesive layer is made of carboxylated styrene-butadiene latex or polyurethane. The bonding effect can be effectively improved.
Preferably, in the integrally recyclable anti-skid artificial turf, the surface of the anti-skid layer is provided with hot-press molded anti-skid lines. Can further improve the antiskid effect, and easily machine-shaping.
Preferably, in the above one integrally recyclable anti-slip artificial turf, the weight of the anti-slip layer is 0.4 to 2kg/m 2. Can meet the requirements of skid resistance and wear resistance and ensure high structural lightweight degree.
It needs to be further explained that:
artificial grass filaments were prepared based on the formulation components listed in table 1 in the following manner:
polyethylene with PE melt index of 1-5g/10min (ASTM D1238, 190 ℃/2.16kg), polypropylene with PP melt index of 5-20g/10min (ASTM D1238, 230 ℃/2.16kg), color master batch and UV anti-aging master batch. The master batch arrangement formula is prepared by mixing the materials by an automatic feeding machine, extruding the mixture by a single-screw extruder, and producing the mixture by the processes of traction, hot drawing, heat setting and the like, wherein the temperature of an oven is 100 ℃, and the rolled straw filaments are prepared into the straw filaments for the to-be-tufted production through a double-twisting process.
Table 1: artificial grass filament formula
| Grass filament type | PE | PP | Color masterbatch | UV anti-aging master batch |
| Straight wire | 87 | / | 10 | 3 |
| Curved wire | / | 87 | 10 | 3 |
Further, preparation of the thermoplastic elastomer coating:
(1) according to the formula, adding the main base material and the environment-friendly naphthenic oil into a container with a stirrer, uniformly stirring at the rotating speed of 1000 revolutions per minute for 30min, and standing at normal temperature for 24h to obtain a mixture A;
(2) adding the PP copolymer or PE and calcium carbonate in the formula into the mixture A, and uniformly stirring at the rotating speed of 800 revolutions per minute for 20min to obtain a mixture B;
(3) and plasticizing and extruding the mixture B by a double-screw extruder, and then granulating, wherein the plasticizing temperature is controlled to be 170-180 ℃, and the screw rotating speed of the double-screw extruder is 200 r/min, so as to obtain the TPE material for the granular environment-friendly anti-skid layer.
(4) Adding the TPE master batch into a double-screw extruder, extruding a TPE coating through a die, and coating the TPE coating on one surface of the base cloth layer away from the artificial grass filaments;
(5) TPE coating passes through embossing roller and hot-press forming anti-skid pattern
Further, the preparation method of the PVC coating comprises the following steps:
the method comprises the following steps:
(1) uniformly mixing PVC resin, a plasticizer, a composite stabilizer and calcium carbonate in the formula by a double-screw extruder, an open mill or an internal mixer to prepare PVC master batch;
(2) adding the PVC master batch into a double-screw extruder, and coating the PVC coating layer on one surface of the base cloth layer away from the artificial grass filaments through a die agent;
(3) the PVC coating layer passes through the embossing roller, the anti-skid lines are formed by hot pressing, and the PVC coating layer is subjected to heating and drying treatment in a plasticizing oven, wherein the plasticizing temperature is 170-.
The second method comprises the following steps:
(1) mixing and stirring the PVC paste resin, the plasticizer, the composite stabilizer and the calcium carbonate in the formula by a mixer, and performing ultrasonic oscillation for 30-40 minutes to obtain PVC paste coating stock solution;
(2) uniformly coating the PVC pasty coating liquid through an open mill, wherein the PVC pasty stock solution exists above two rollers of the open mill, the semi-finished lawn exists below the open mill, and the PVC is uniformly coated on one side, far away from the artificial grass filaments, of the base cloth layer through the rotation of the two rollers of the open mill.
(3) The PVC coating layer passes through the embossing roller, the anti-skid lines are formed by hot pressing, and the PVC coating layer is subjected to heating and drying treatment in a plasticizing oven, wherein the plasticizing temperature is 170-.
Further: preparation of the silica gel coating:
(1) adding silica gel, curing agent, inhibitor and diluent into a mixer, mixing and stirring, and ultrasonically oscillating for 30-40 minutes to obtain silica gel coating stock solution;
(2) and uniformly coating the silica gel coating liquid through an open mill, wherein the silica gel stock solution exists above the two rollers of the open mill, the semi-finished lawn exists below the open mill, and the silica gel is uniformly coated on one surface of the base cloth layer, which is far away from the artificial grass filaments, through the rotation of the two rollers of the open mill.
(3) The silica gel coating layer passes through the embossing roller, is hot-pressed to form the anti-skid lines, and is heated and dried by the plasticizing oven, and the plasticizing temperature is 100-.
According to the technical scheme, compared with the prior art, the utility model discloses an integral recoverable anti-skid artificial lawn, which comprises artificial grass filaments, a base cloth layer and an anti-skid layer, adopts a thermoplastic elastomer coating or a silica gel coating to replace the traditional coating, has an anti-skid function, is suitable for wood floors, ceramic tiles or marble floors, and solves the problems of floor abrasion and sliding generation in indoor use of the leisure artificial lawn; meanwhile, the newly developed lawn has stable size when being used for a long time at 70 ℃, has the shrinkage rate of less than 0.5 percent, is an environment-friendly product, and can be integrally recycled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of an artificial lawn, which is composed of artificial grass filaments, a base cloth layer and an anti-slip layer, according to the present invention;
fig. 2 is a schematic structural diagram of an artificial turf composed of artificial grass filaments, a base fabric layer, an adhesive layer and an anti-slip layer according to the present invention.
Wherein:
1-artificial grass filaments;
2-a base fabric layer;
3-an adhesive layer;
4-an anti-slip layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
in order to manufacture the integrally recyclable anti-skid artificial turf, firstly, the double-twisted artificial grass filaments 1 are tufted on the base fabric layer 2 to manufacture a semi-finished turf. Then adding the TPE thermoplastic elastomer master batch into a double-screw extruder, feeding the uniformly mixed thermoplastic elastomer material melt into a die head, coating an anti-skid layer 4 of the thermoplastic elastomer on one surface of the artificial turf semi-finished product, which is far away from the artificial grass filaments 1, cooling the anti-skid layer 4 of the thermoplastic elastomer to 85-90 ℃, and performing hot pressing by an embossing roller to generate anti-skid lines to obtain the recyclable anti-skid mat artificial turf, wherein the weight of the anti-skid layer is 0.4kg/m2。
Example 2:
in order to manufacture the integrally recyclable anti-skid artificial turf, firstly, the double-twisted artificial grass filaments 1 are tufted on the base fabric layer 2 to manufacture a semi-finished turf. Then adding the TPE thermoplastic elastomer master batch into a double-screw extruder, extruding through a die head, and semi-forming on the artificial turfCoating an anti-skid layer 4 of thermoplastic elastomer on one surface of the artificial grass filament 1, and hot-pressing anti-skid lines by an embossing roller to obtain the recyclable anti-skid artificial lawn, wherein the weight of the anti-skid layer is 2kg/m2。
Example 3:
in order to manufacture the integrally recyclable anti-skid artificial turf, firstly, the double-twisted artificial grass filaments 1 are tufted on the base fabric layer 2 to manufacture a semi-finished turf. Then, coating a layer of styrene-butadiene latex on the back of the tufted semi-finished product to play a role in fixing, wherein the amount of the styrene-butadiene latex is 0.5kg/m2Finally, adding TPE thermoplastic elastomer into a double-screw extruder, extruding through a die head, coating an anti-skid layer 4 of the thermoplastic elastomer on one surface of the artificial turf semi-finished product, which is far away from the artificial grass filaments 1, and hot-pressing anti-skid lines through an embossing roller to obtain the recyclable anti-skid artificial turf, wherein the weight of the anti-skid layer is 1kg/m2。
Example 4:
in order to manufacture the integrally recyclable anti-skid artificial turf, firstly, the double-twisted artificial grass filaments 1 are tufted on the base fabric layer 2 to manufacture a semi-finished turf. Then, a layer of PU latex is coated on the back of the tufted semi-finished product to play a role in fixing, and the amount of the PU latex is 0.5kg/m2Finally, adding TPE thermoplastic elastomer into a double-screw extruder, extruding through a die head, coating an anti-skid layer 4 of the thermoplastic elastomer on one surface of the artificial turf semi-finished product, which is far away from the artificial grass filaments 1, and hot-pressing anti-skid lines through an embossing roller to obtain the recyclable anti-skid artificial turf, wherein the weight of the anti-skid layer is 1kg/m2.
Example 5:
in order to manufacture the artificial lawn with the integrally recyclable non-slip mat, firstly, the two-for-one twisted artificial grass filaments 1 are tufted on the base cloth layer 2 to manufacture a semi-finished lawn. Then, coating a PCV coating, coating PVC pasty resin on one surface of the artificial turf semi-finished product, which is far away from the artificial grass filaments 1, through a scraper blade to form a PVC anti-skid layer 4, passing through an oven, wherein the temperature of the oven is 210 ℃, and then hot-pressing anti-skid lines through embossing rollers to obtain the recyclable anti-skid mat artificial turf, wherein the weight of the anti-skid layer 4 is 0.8kg/m2。
Example 6:
to manufacture the whole recyclable non-slip matThe lawn is manufactured by firstly tufting the double-twisted artificial grass filaments 1 on the base cloth layer 2 to manufacture a semi-finished lawn. Then coating a silica gel coating, coating the silica gel mixture on one surface of the artificial turf semi-finished product far away from the artificial grass filaments 1 through a scraper to form a silica gel anti-slip layer 4, passing through an oven at the temperature of 100 ℃, hot-pressing anti-slip lines through an embossing roller to obtain the recyclable anti-slip mat artificial turf, wherein the weight of the anti-slip layer 4 is 0.8kg/m2。
To compare the structural properties of examples 1 to 6, the following two conventional artificial turf structures were provided:
comparative example 1:
in order to manufacture the butylbenzene bottom-back artificial turf, firstly, the double-twisted artificial turf filaments are tufted on the base cloth layer to manufacture a semi-finished turf. Then, styrene-butadiene latex is coated on the side, away from the artificial grass filaments, of the semi-finished lawn, wherein the glue amount is 1kg/m 2.
Comparative example 2:
in order to manufacture the PU bottom-back artificial turf, firstly, the two-for-one twisted artificial grass filaments are tufted on a base fabric layer to manufacture a semi-finished turf. Then, the surface of the semi-finished lawn far away from the artificial grass filaments is coated with PU latex, and the glue amount is 0.7kg/m 2.
The degree of abrasion resistance and the coefficient of friction of the thermoplastic non-slip back obtained in examples 1 to 6 were compared with those of the backs obtained in comparative examples 1 to 2, and the results are shown in Table 2 below.
Abrasion loss degree test standard: reference is made to DIN 53516GB 9867 standard;
friction coefficient test standard: reference is made to the ISO 8295 standard.
Table 2: performance test data
As can be seen from table 2 above, the abrasion resistance of the whole recyclable anti-skid artificial turf according to the present invention is increased by at least 84% and the friction coefficient is increased by at least 10% in the examples 1 to 6, compared to the conventional atex and PU bottom back turf according to the comparative examples 1 and 2. The utility model relates to an artificial lawn capable of being recovered and preventing skidding integrally has better wear-resisting and antiskid effects. Compared with the traditional artificial lawn, the integrally recyclable anti-skidding artificial lawn is an environment-friendly product, and has good dimensional stability, and the size of the lawn is stable when the integrally recyclable anti-skidding artificial lawn is used for a long time at 70 ℃.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The integrally-recyclable anti-skidding artificial lawn is characterized by comprising artificial grass filaments (1), a base cloth layer (2) and an anti-skidding layer (4), wherein the artificial grass filaments (1) are tufted on the base cloth layer (2), and the anti-skidding layer (4) is bonded on one surface, away from the artificial grass filaments (1), of the base cloth layer (2).
2. The integrated recyclable anti-skid artificial lawn as claimed in claim 1, wherein the anti-skid layer (4) is integrally formed on the surface of the base fabric layer (2) far away from the artificial grass filaments (1) by thermoplastic elastomer material, PVC material or silica gel material.
3. An integrated recyclable anti-skid artificial lawn according to claim 1, characterized in that the base layer (2) and the anti-skid layer (4) have an adhesive layer (3) therebetween, and the adhesive layer (3) has a dry glue amount of 0-1.2kg/m2。
4. An integrated recyclable anti-skid artificial lawn according to claim 3, characterized in that the adhesive layer (3) is made of carboxylated styrene-butadiene latex or polyurethane.
5. The integrated recyclable anti-skid artificial lawn as claimed in claim 1, wherein the surface of the anti-skid layer (4) has hot press molding anti-skid lines.
6. An integrated recyclable anti-skid artificial lawn according to any of claims 1-5, characterized in that the weight of the anti-skid layer (4) is 0.4-2kg/m2。
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