CN111719379B - Water storage artificial turf system structure - Google Patents

Water storage artificial turf system structure Download PDF

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Publication number
CN111719379B
CN111719379B CN202010567549.4A CN202010567549A CN111719379B CN 111719379 B CN111719379 B CN 111719379B CN 202010567549 A CN202010567549 A CN 202010567549A CN 111719379 B CN111719379 B CN 111719379B
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layer
water storage
artificial turf
cushion layer
artificial lawn
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CN111719379A (en
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武懿嘉
赵春贵
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Jiangsu Ccgrass Co ltd
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Jiangsu Ccgrass Co ltd
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • 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
    • 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
    • E01C11/00—Details of pavings
    • E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • 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
    • E01C13/02—Foundations, e.g. with drainage or heating arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/744—Non-slip, anti-slip

Abstract

The invention discloses a water storage artificial turf system structure, which consists of an artificial turf, a blocking layer, an elastic cushion layer and a water storage tank, wherein the artificial turf is paved on the upper surface of the blocking layer; the elastic cushion layer is arranged on the lower surface of the barrier layer in an attaching mode; the water storage tank is supported on the lower surface of the elastic cushion layer. The artificial turf elastic cushion system can solve the problems in the process of matching the artificial turf and the elastic cushion system for use, and the connection of the barrier layer can increase the friction force and prevent the artificial turf from generating relative displacement after being used for a period of time; the elastic cushion layer is used, so that the waterproof cloth has good drainage performance and air permeability; the design of the water storage tank can improve the problem of high surface temperature of the artificial turf and increase the comfort of the artificial turf in high-temperature weather.

Description

Water storage artificial turf system structure
Technical Field
The invention relates to the technical field of artificial lawns, in particular to a water storage artificial lawn system structure.
Background
In recent years, the artificial turf industry is vigorously developed, the consumption of the artificial turf industry is increased year by year, and the annual growth rate is 20-25%. The artificial turf is widely applied to various leisure and decoration fields beyond stadiums, the usage amount of the artificial turf in the world reaches more than 3 hundred million square meters, and the artificial turf for sports accounts for about 50 percent. According to the knowledge of sports meetings such as Europe, america, canada and the like and customers, the artificial lawn sports field needs to be watered and cooled about 2 hours in advance in high-temperature weather before sports. According to the knowledge, in the area with higher temperature in summer, the temperature of the lawn carpet surface can reach about 80 ℃, the sport comfort of athletes is very poor, and thermal burns can be easily caused if the athletes fall down. In recent years, in order to meet the national requirement for environment-friendly and recyclable ground materials, the recyclable artificial turf of the fourth generation is rapidly developed, particularly, the application in the field of leisure grass is rapidly increased at a growth rate of 50% every year, and the application in the field of sports grass is increased by 15%.
The fourth-generation recoverable artificial turf has specific and certain water storage capacity in the characteristics of a sports grass application system, according to feedback of an actual field, the water storage capacity of the fourth-generation recoverable artificial turf is not enough to meet the cooling requirement of a one-day artificial turf sports field, 2 hours can be supported according to statistics, and the fourth-generation recoverable artificial turf has a problem in matching use with an elastic cushion.
Therefore, it is necessary to solve the problems of the recoverable artificial turf and the elastic cushion system in the process of cooperating with each other and to improve the surface temperature of the turf in high temperature weather, and a new artificial turf system structure is developed.
Disclosure of Invention
In view of the above, the present invention provides a water storage artificial lawn system structure, which aims to solve the above technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water storage artificial turf system structure comprises an artificial turf, a blocking layer, an elastic cushion layer and a water storage tank, wherein the artificial turf is formed on the upper surface of the blocking layer; the elastic cushion layer is arranged on the lower surface of the barrier layer in an attaching mode; the water storage tank is supported on the lower surface of the elastic cushion layer.
By the technical scheme, the problem of high surface temperature of the artificial lawn sports ground in high-temperature weather can be solved due to the ultrahigh water storage capacity of the water storage tank in the water storage artificial lawn system, and the sports comfort of the ground is improved; meanwhile, the blocking cloth can improve the direct friction force of the recyclable artificial turf on the elastic cushion, solve the problem of relative deformation displacement between the recyclable artificial turf and the elastic cushion directly, and improve the dimensional stability of a recyclable artificial turf product; the design of the water storage tank of the water storage artificial turf system can play a role in water storage in high-temperature weather, and has a function of achieving quick water drainage in rainstorm weather through the water drainage valve, so that the system has strong practicability.
The artificial turf, the blocking layer, the elastic cushion layer and the water storage tank are sequentially paved.
Preferably, in the above-mentioned structure of a water-storing artificial turf system, the artificial turf is one of a carboxylated styrene-butadiene latex bottom-back artificial turf, a PU latex bottom-back artificial turf or a recyclable artificial turf, and more preferably, a recyclable artificial turf.
Preferably, in the above water storage artificial turf system structure, the recyclable artificial turf is a hot-melt adhesive artificial turf with a non-woven fabric or a hot-melt net film as a base and a back.
Preferably, in the above structure of the water-storing artificial turf system, the shrinkage rate of the recyclable artificial turf in the longitudinal direction is 0.1% to 0.2%, and the shrinkage rate of the recyclable artificial turf in the transverse direction is 0.05% to 0.1%.
The hot-melt back-adhesive artificial turf with the non-woven fabric or the hot-melt net film as the base back is prepared by a hot-melt back-adhesive process, specifically, the non-woven fabric layer or the hot-melt net film layer is bonded on one surface, far away from the artificial grass filaments, of the base fabric layer through the hot compounding roller, the non-woven fabric layer or the hot-melt net film layer contains hot-melt powder, and when the hot compounding roller is overheated, the low-melting-point hot-melt powder is adhered to the base fabric layer in a molten state and is fused with the roots of the grass filaments.
Furthermore, the hot-melt gum artificial turf with the non-woven fabric or the hot-melt net film as the back is characterized in that the semi-finished turf and the non-woven fabric layer or the hot-melt net film layer are compounded through hot melting by the hot-melt compounding roller in the hot-melt compounding process, and in the process, the turf is equivalently annealed, so that the low shrinkage rate of the turf in the later-stage field use process is ensured, and the shrinkage separation joint cannot be basically seen at the splicing part on the field.
Preferably, in the above water storage artificial turf system structure, the barrier layer is one of PP woven cloth, non-woven cloth or point-molded non-woven cloth.
The point-molded non-woven fabric is one of a single-sided point-molded non-woven fabric or a double-sided point-molded non-woven fabric layer, and the gram weight of the non-woven fabric is 100-500g/m 2 The gram weight of the spot molding is 50-150g/m 2 The density of the dot-plastomer is 4-6 ten thousand/m 2 。
Preferably, in the above water storage artificial turf system structure, the main base material of the non-woven fabric comprises one or a combination of several of polypropylene, polyester and nylon, and the main base material of the dot-plastic comprises one of PVC, PMMA and silica gel.
Further, the barrier layer mainly functions as: 1. the sand and rubber particles filled in the paving process of the artificial lawn are blocked, and the sand and rubber particles are prevented from leaking into the water storage tank to influence the movement performance of the artificial lawn and the water storage function of the water storage tank; 2. the equivalent displacement of the recyclable artificial turf and the elastic cushion directly generated is improved, and the size stability of the recyclable artificial turf is improved.
Furthermore, the barrier layer matched with the recyclable artificial turf is preferably non-woven fabric or point-molded non-woven fabric, more preferably point-molded non-woven fabric, and the gram weight of the non-woven fabric is 100-500g/m 2 Preferably a gram weight of 150 to 300g/m 2 . The gram weight of the non-woven fabric is less than 100g/m 2 When the adhesive tape is used, the non-woven fabric is low in strength and easy to tear; when the gram weight of the non-woven fabric is more than 500g/m 2 Time, too thick non-woven fabric and shadowThe drainage of the system is affected. The gram weight of the spot molding is 70-150g/m 2 Further, the main base material of the dot plastic comprises one of PVC, PMMA and silica gel. The PVC material is prepared by blending PVC paste resin, a plasticizer, a heat stabilizer and a filler, is low in price and is a raw material with a large using amount; PMMA is also called as acrylic adhesive and is used as a point plastic material, and the antiskid performance of the produced point plastic non-woven fabric is superior to that of PVC point plastic non-woven fabric; silica gel is the material with the highest price, the antiskid performance of the silica gel point plastic non-woven fabric is superior to that of PMMA point plastic non-woven fabric, the price is the most expensive of 3 materials, and the silica gel point plastic non-woven fabric is only used for products with strict requirements on environmental protection.
The beneficial effects of adopting the materials and the parameters are as follows: increase one deck barrier layer between recoverable artificial turf and elastic cushion layer, the non-woven fabrics is moulded to preferred point to improve the frictional force between lawn and the elastic cushion layer, guarantee the stability of lawn size, especially to IXPE foaming pad, improvement IXPE foaming pad thermal expansion deformation problem that can be obvious.
Preferably, in the above water storage artificial turf system structure, the elastic cushion layer is one of a 3D silk cushion layer, an IXPE foam cushion layer and a TPU foam cushion layer.
The 3D silk cushion layer comprises a 3D silk irregular winding layer with a hollow structure, and the blocking layer is arranged on the upper surface of the 3D silk irregular winding layer;
or the barrier layer comprises a 3D silk W-shaped cushion layer, the 3D silks are circularly arranged according to a W shape to form the W-shaped cushion layer, and the barrier layer is arranged on the upper surface of the 3D silk W-shaped cushion layer;
or weave the bed course including 3D, including upper and lower two-layer non-woven fabrics layer and the middle supporting layer that has hollow out construction, middle supporting layer is fixed in the middle of two-layer non-woven fabrics for the 3D silk through weaving process, the barrier layer is arranged 3D weaves the bed course upper surface.
The main material of the 3D silk that involves in 3D silk bed course and the 3D silk W type bed course is: polyethylene, polypropylene, polyethylene terephthalate, polyamide, ethylene-octene copolymer, ethylene-vinyl acetate copolymer, one of polyethylene and polypropylene blend, polyethylene and ethylene-octene blend, polyethylene and ethylene-vinyl acetate blend, polypropylene and ethylene-octene blend, polypropylene and ethylene-vinyl acetate blend, preferably one of polyethylene and polypropylene blend, polypropylene and ethylene-octene blend, polypropylene and ethylene-vinyl acetate blend.
The 3D wires in the 3D wire cushion layer are solid or hollow, the diameter is 0.1-4mm, the thickness of the 3D wire cushion layer is 5-30mm, and the density is 30-200kg/m 3 。
Further, 3D silk produced by polyethylene and polypropylene materials is characterized in that the polypropylene is copolymerized polypropylene with high impact strength, the polypropylene serves as a hard segment to play a supporting role, and the polyethylene serves as a soft segment to play a buffering role; the polypropylene and ethylene-octene blend is used as a raw material of the 3D filament, the ethylene-octene is used as a soft section to play a role in buffering, the 3D filament has good toughness and excellent fatigue resistance performance of repeated movement, the polypropylene is used as a hard section to play a role in supporting, but the integral hardness is lower than that of the 3D filament produced by the polyethylene and polypropylene blend material; the 3D filament produced by the polypropylene and ethylene-vinyl acetate blend is the 3D filament with the best toughness and the worst support, the diameter of the 3D filament produced by the three raw materials is 0.1-4mm, preferably 0.5-3mm, more preferably 1-2mm, and the 3D filament is a solid filament or a hollow filament.
The 3D weaving cushion layer 3D silk related to the above main material is: polyethylene, polypropylene, polyethylene terephthalate, polyamide, ethylene-octene copolymer, ethylene-vinyl acetate copolymer, polyethylene and polypropylene blend, polyethylene and ethylene-octene blend, polyethylene and ethylene-vinyl acetate blend, polypropylene and ethylene-octene blend, polypropylene and ethylene-vinyl acetate blend, preferably polypropylene and ethylene-octene blend, polyethylene terephthalate and polyamide, wherein 3D filaments produced by polypropylene and ethylene-octene blend are softer and have poorer support property, 3D filaments produced by polyamide have the best support property and the highest cost, 3D filament support property produced by polyethylene terephthalate is between the two materials, the diameter of the 3D filament used by the related 3D knitted cushion is 0.1-1mm, preferably 0.2-0.5mm, and 3D filament is preferably solid filament.
Further, the IXPE foaming pad is mainly made of polyethylene, and a proper foaming ratio is selected according to the requirements of FIFA detection of a site, wherein the preferable foaming ratio is 20 times foaming, 30 times foaming and 40 times foaming ratio. The TPU foaming pad is formed by foaming TPU into particles by adopting a supercritical state foaming process, and bonding a proper adhesive to form the foaming pad, and has the advantages of high damping performance, impact absorption of up to 65%, self-seepage, no need of opening holes, self-drainage, long service life, higher cost, and capability of selecting the elastic pad in a filling-free production place with very high performance requirements.
Preferably, in the above water storage artificial turf system structure, a hollowed support frame is arranged inside the water storage tank, the depth of the water storage tank is 5-50mm, the thickness of the hollowed support frame is 5-50mm, and the hollowed support frame is located below the elastic cushion layer.
It should be noted that the water storage tank may be a tank structure directly formed on a cement floor, and when the artificial turf, the barrier layer and the elastic cushion layer are laid inside the water storage tank, the height of the artificial turf may be higher than the height of the top surface of the water storage tank, that is, the artificial turf may completely protrude from the top surface of the water storage tank or be wrapped by the water storage tank; or the height of the top surface of the water storage tank can be lower than that of the top surface of the water storage tank, namely the water storage tank is wrapped. When the artificial lawn, the blocking layer and the elastic cushion layer are directly paved in the water storage tank, the water storage tank can play a role in storing water due to the hollow structure of the elastic cushion layer; when the thickness of the elastic cushion layer is smaller, the hollowed-out support frame is arranged and can be made of PP materials, the artificial lawn, the blocking layer and the elastic cushion layer are laid on the top surface of the hollowed-out support frame, the layer where the hollowed-out support frame is located and the elastic cushion layer can play a role in storing water at the same time, and the water storage performance is better.
The invention has the advantages that the preferable recyclable artificial lawn has certain water absorption characteristic at the bottom and back, realizes the water storage function, but has low water storage capacity, and the water basically evaporates after being normally exposed for 2 hours, so that the effect of continuous cooling cannot be realized.
The preparation method of the recyclable artificial turf comprises the following steps:
the preparation method of the recyclable artificial turf with the non-woven fabric or the hot-melt net film hot-melt gum on the back comprises the following steps:
(1) Preparing artificial grass filaments:
88kg of polyethylene, 8kg of color master batch and 4kg of auxiliary agent (the auxiliary agent can be selected from 0.8kg of ultraviolet stabilizer, 1.6kg of antioxidant, 0.4kg of antistatic agent, 0.4kg of opening agent and 0.8kg of dispersing agent), and the mixture is subjected to blending extrusion molding to prepare the artificial grass filaments, wherein the extrusion molding temperature is 220 ℃, the total stretching ratio is 5-6, and the oven temperature is 95 ℃.
(2) Preparing a base fabric layer:
uniformly dispersing the hot melt powder on the PP woven fabric and the mesh cloth (the mesh cloth is positioned on the PP woven fabric), passing through a heating device at a transmission speed of 5m/min, controlling the heating temperature to be 150-160 ℃, adhering the mesh cloth and the PP woven fabric together, cooling and rolling to obtain the base cloth layer.
(3) Preparing a non-woven fabric layer or a hot-melt net film layer:
the non-woven fabric layer or the hot-melt net film layer is prepared by uniformly dispersing hot-melt powder on non-woven fabric, passing through a heating device at a transmission speed of 6m/min, heating at 150-160 deg.C, melting the hot-melt powder to adhere to the non-woven fabric, cooling, and rolling.
(4) Preparing a recyclable artificial lawn:
tufting artificial grass filaments on a base cloth layer (the mesh cloth is the surface far away from the artificial grass filaments) to obtain a semi-finished lawn, enabling a non-woven cloth layer or a hot-melt net film layer with the same size and the semi-finished lawn to pass through a heating roller in a mode that the mesh surface is attached to the upper resin layer surface of the non-woven cloth layer or the hot-melt net film layer, wherein the transmission speed is 3m/min, the temperature is controlled to be 180-200 ℃, and cooling and rolling are carried out to obtain the hot-melt back adhesive artificial lawn with the bottom back being the non-woven cloth layer or the hot-melt net film layer.
The preparation method of the spot-molded non-woven fabric comprises the following steps:
(1) Point plastic raw materials (taking PVC as an example): mixing PVC paste resin, a PVC plasticizer, inorganic filler and a heat stabilizer into paste resin, wherein the viscosity of the paste resin is as follows: 15000mPa.S-30000mPa.S.
(2) And (3) carrying out non-woven fabric point molding by a point molding device, wherein the oven temperature of the point molding device is 220 ℃, and the speed is 3m/min.
Through the technical scheme, compared with the prior art, the artificial turf structure provided by the invention has the following beneficial effects: the ultrahigh water storage capacity of the water storage tank in the water storage artificial turf system can solve the problem of high surface temperature of the artificial turf playing field in high-temperature weather and improve the sports comfort of the field; meanwhile, the preferable point plastic non-woven fabric in the barrier cloth can improve the direct friction force of the recyclable artificial turf on the elastic cushion, solve the problem of relative deformation displacement generated by the recyclable artificial turf and the elastic cushion directly, and improve the dimensional stability of the recyclable artificial turf product; the design of the reservoir of the artificial turf system of water storage can play the water storage function in high temperature weather, and there is the function that can reach quick drainage through the drain valve in heavy rain weather, and this system has very strong practicality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 diagram provided by the present invention.
Wherein:
1-recoverable artificial turf;
2-a barrier layer;
3-an elastic cushion layer;
4-a water storage tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
recyclable artificial turf 1: the bottom and back of the artificial lawn are non-woven fabric hot-melt gum artificial lawn, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the lawn weight is 1kg/m 2 ；
And (3) barrier layer 2: the gram weight of the non-woven fabric is 200g/m 2 PVC single-side plastic-dropping gram weight of 70g/m 2 The density of the dot plastic is 2 ten thousand/m 2 。
Elastic cushion layer 3: and (3) a 3D filament cushion layer with the thickness of 8mm, wherein 80kg of copolymerized PP, 14kg of polyethylene, 4kg of color master batch and 2 parts of stabilizing additive are mixed and then extruded by a single-screw extruder, and are extruded by a spinneret die head to be cooled and shaped by cooling water, the 3D filament is solid, and the diameter of the 3D filament is 1mm.
A water storage tank 4: the depth of the water storage tank is 8mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable artificial lawn and the elastic cushion layer are shown in table 1.
Example 2:
recyclable artificial turf layer 1: the bottom and back of the artificial lawn are non-woven fabric hot-melt gum artificial lawn, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the lawn weight is 1kg/m 2 ；
And (3) barrier layer 2: the gram weight of the non-woven fabric is 300g/m 2 PVC double-sided spot plastic gram weight 130g/m 2 The density of the dot-plastomers is 3 ten thousand/m 2 。
Elastic cushion layer 3: and (3) forming a 3D silk cushion layer with the thickness of 15mm, mixing 80kg of copolymerized PP, 14kg of polyethylene, 4kg of color master batch and 2 parts of stabilizing auxiliary agent, extruding the mixture by a single-screw extruder, extruding the mixture by a spinneret die head to cool and shape the mixture by cooling water, wherein the 3D silk is solid, and the diameter of the 3D silk is 1.5mm.
The water storage tank 4: the depth of the water storage tank is 20mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction data between the recyclable artificial lawn and the elastic cushion layer are shown in table 1.
Example 3:
recyclable artificial turf 1: the bottom and back of the artificial lawn are non-woven fabric hot-melt gum artificial lawn, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the lawn weight is 1kg/m 2 ；
And (3) barrier layer 2: the gram weight of the non-woven fabric is 300g/m 2 PVC double-sided spot plastic gram weight 130g/m 2 The density of the point plastic is 3 ten thousand/m 2 。
Elastic cushion layer 3: and (3) a 3D filament cushion layer with the thickness of 20mm, wherein 80kg of copolymerized PP, 14kg of ethylene-octene copolymer, 4kg of color master batch and 2 parts of stabilizing additive are mixed and then extruded by a single-screw extruder, and are extruded by a spinneret die head to be cooled and shaped by cooling water, and the 3D filament is hollow and has the diameter of 1.5mm.
A water storage tank 4: the depth of the water storage tank is 20mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable artificial lawn and the elastic cushion layer are shown in table 1.
Example 4:
recyclable artificial turf 1: the bottom and the back are non-woven fabric hot-melt gum artificial turf, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the weight of the turf is 1kg/m 2 ；
And (3) barrier layer 2: the gram weight of the non-woven fabric is 300g/m 2 Silica gel double-sided spot plastic gram weight 130g/m 2 The density of the dot-plastomers is 3 ten thousand/m 2 。
Elastic cushion layer 3: the 3D silk W type cushion layer is 10mm in thickness, 94kg of copolymerized PP,4kg of color master batch and 2 parts of stabilizing auxiliary agent are mixed and then extruded through a single-screw extruder, cooling water is extruded through a spinneret die head for cooling and shaping, and the 3D silk is hollow and 1.5mm in diameter.
A water storage tank 4: the depth of the water storage tank is 15mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable artificial lawn and the elastic cushion layer are shown in table 1.
Example 5:
recyclable artificial turf 1: the bottom and the back are non-woven fabric hot-melt gum artificial turf, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the weight of the turf is 1kg/m 2 ；
And (3) barrier layer 2: the gram weight of the non-woven fabric is 300g/m 2 Double-sided plastic gram weight of silica gel of 130g/m 2 The density of the point plastic is 3 ten thousand/m 2 。
Elastic cushion layer 3: the 3D yarn W-shaped cushion layer is 30mm in thickness, 94kg of polyamide, 4kg of color master batch and 2 parts of stabilizing auxiliary agent are mixed and then extruded through a single-screw extruder, and the mixture is extruded through a spinneret die head and cooled and shaped by cooling water, wherein the 3D yarn is solid and 1mm in diameter.
A water storage tank 4: the depth of the water storage tank is 30mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable lawn and the elastic cushion layer are shown in table 1.
Example 6:
recyclable artificial turf 1: the bottom and the back are non-woven fabric hot-melt gum artificial turf, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the weight of the turf is 1kg/m 2 ；
Barrier layer 2: the gram weight of the non-woven fabric is 400g/m 2 PMMA double-sided dot plastic gram weight 150g/m 2 The density of the dot plastic is 5 ten thousand/m 2 。
Elastic cushion layer 3: the 3D weaves the bed course, and upper and lower surface course is the polyethylene glycol terephthalate fibre, and middle supporting layer is polyethylene glycol terephthalate 3D monofilament, and 3D monofilament diameter is 0.25mm, and thickness is 10mm.
A water storage tank 4: the depth of the water storage tank is 10mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable lawn and the elastic cushion layer are shown in table 1.
Example 7:
artificial turf layer 1: the bottom and back of the artificial lawn are non-woven fabric hot-melt gum artificial lawn, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the lawn weight is 1kg/m 2 ；
And (3) barrier layer 2: the gram weight of the non-woven fabric is 200g/m < 2 >, the single-sided point molding gram weight of the PVC is 70g/m < 2 >, and the point molding density is 2 ten thousand per m 2 。
Elastic cushion layer 3: IXPE foam pad, expansion ratio 30, thickness 1cm.
A water storage tank 4: the water storage tank is 15mm in depth, and the hollow support is 15mm in height.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable lawn and the elastic cushion layer are shown in table 1.
Example 8
Recyclable artificial turf 1: the bottom and the back are non-woven fabric hot-melt gum artificial turf, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the weight of the turf is 1kg/m 2 ；
And (3) barrier layer 2: the gram weight of the non-woven fabric is 200g/m 2 PVC single-side plastic gram weight of 70g/m 2 The density of the dot plastic is 2 ten thousand/m 2 。
Elastic cushion layer 3: TPU foaming pad, thickness 20mm.
A water storage tank 4: the depth of the water storage tank is 20mm, and the height of the hollow support is 20mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable lawn and the elastic cushion layer are shown in table 1.
Example 9
Artificial turf layer 1: the bottom and the back of the artificial lawn are made of carboxylic styrene-butadiene latex, the row spacing is 5/8, the needle number is 16, the grass height is 40mm, and the weight of the lawn is 1kg/m 2 5cm × 5cm of drain hole;
and (3) a barrier fabric layer 2: the gram weight of the non-woven fabric is 200g/m 2 ；
Elastic cushion layer 3: TPU foaming pad, thickness 1cm.
A water storage tank 4: the depth of the water storage tank is 20mm, and the height of the hollow support is 20mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable lawn and the elastic cushion layer are shown in table 1.
Example 10
1, artificial turf 1: the bottom and the back of the artificial lawn made of PU latex have the line spacing of 5/8, the needle number of 16 needles, the grass height of 40mm and the lawn weight of 1kg/m 2 Drain holes 5cm by 5cm;
barrier cloth 2: the gram weight of the non-woven fabric is 200g/m 2 PVC single-side plastic gram weight of 70g/m 2 The density of the dot plastic is 2 ten thousand/m 2 。
Elastic cushion layer 3: TPU foaming pad, thickness 10mm.
The water storage tank 4: the depth of the water storage tank is 20mm, and the height of the hollow support is 20mm.
The water permeability of the system, the apparent temperature of the lawn, and the friction between the recyclable lawn and the elastic cushion layer are shown in table 1.
To compare the water permeability, the recycled grass and the friction between the elastic mat and the systems of examples 1 to 8, the following two comparative examples are provided:
comparative example 1:
the artificial turf layer is a traditional carboxylic styrene-butadiene latex artificial turf, and the specification of a drainage hole is 5cm x 5cm. The elastic pad is an IXPE elastic pad.
The water permeability of the system, the apparent temperature of the lawn and the friction between the artificial lawn layer and the elastic pad are shown in table 1.
Comparative example 2
The artificial turf layer is a traditional PU latex artificial turf, and the specification of a drainage hole is 5cm x 5cm. The elastic pad is an IXPE elastic pad.
The water permeability of the system, the apparent temperature of the lawn and the friction between the artificial lawn layer and the elastic pad are shown in table 1.
Detecting the lawn water seepage rate by using a standard FIFA Quality program for FootballTurf-2015, wherein the specific detection steps are as follows:
(1) Pouring more than 60Kg of water into the detection device to enable the water surface to exceed the scale mark A, stopping adding water, and naturally descending the water surface.
(2) After the water surface is calm, the water surface is observed to descend, the time T between the line A and the line B is recorded by a stopwatch to be accurate to seconds, wherein the line B is at least 20mm higher than the upper surface of the grass filaments, and the distance between the line A and the line B is 100mm.
(3) The water seepage speed eta is calculated according to the formula (1):
η = 100/(T/3600) equation (1)
Wherein eta is the water seepage height (mm) in unit time (h per hour), namely the water seepage speed, and the unit is mm/h; t is the time of the water surface flowing between the line A and the line B, and the unit is second (S).
The lawn apparent temperature test method comprises the following steps:
storing water in 1 × 1m water storage tanks, and paving the water storage tanks according to the system structure in the embodiment;
the temperature of the surface of the lawn carpet is measured by an infrared gun at 1 pm on the next day, and the average temperature of 10 points is taken.
And the friction force data between the recyclable artificial turf and the elastic cushion layer is as follows:
the size of the recyclable artificial lawn/barrier/elastic cushion is 1 x 1m.
The middle point of the edge of the lawn is clamped by a handheld tension tester, the friction force and the stretching speed are respectively measured when relative movement occurs, the stretching speed is 20m/min, 5 times of data are measured on each side, and the average value is obtained.
TABLE 1
Figure GDA0003837153700000121
Figure GDA0003837153700000131
In summary, the invention has the following advantages of 4:
1. the artificial lawn system of the invention preferably adopts the recyclable artificial lawn, the barrier cloth and the elastic cushion, can be recycled except the IXPE foaming cushion layer, and is an environment-friendly product.
2. In structural performance, the water permeability of the artificial turf structure of the invention is obviously higher than that of the traditional artificial turf system.
3. Meanwhile, the preferable point plastic non-woven fabric in the barrier cloth can improve the friction force between the recyclable artificial turf and the elastic cushion, solve the problem of relative deformation displacement between the recyclable artificial turf and the elastic cushion directly, and improve the dimensional stability of the recyclable artificial turf product
4. The artificial turf system has stable structure size, and the water storage tank can continuously reduce the stability of the whole system, thereby solving the problem of the bulge of the traditional artificial turf system.
5. The problem that the surface temperature of the artificial turf playing field is high in high-temperature weather can be solved by the aid of the ultrahigh water storage capacity of the water storage tank in the water storage artificial turf system, and the comfort of the playing field is improved.
In the present specification, the embodiments 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 (12)

1. A water storage artificial turf system structure is characterized by comprising an artificial turf (1), a blocking layer (2), an elastic cushion layer (3) and a water storage tank (4), wherein the artificial turf (1) is paved on the upper surface of the blocking layer (2); the elastic cushion layer (3) is arranged on the lower surface of the barrier layer (2) in a fitting manner; the water storage tank (4) is supported on the lower surface of the elastic cushion layer (3); the artificial lawn (1), the blocking layer (2), the elastic cushion layer (3) and the water storage tank (4) are sequentially paved; artificial turf (1), barrier layer (2) and elasticity bed course (3) are laid during aqua storage tank (4) is inside, artificial turf (1) highly be less than the top surface height of aqua storage tank (4), aqua storage tank (4) inside has the fretwork support frame, the fretwork support frame is located elasticity bed course (3) below, the fretwork support frame is the PP material.
2. A water storing artificial lawn system structure as claimed in claim 1, wherein the artificial lawn (1) is one of a carboxylated styrene-butadiene latex back artificial lawn, a PU latex back artificial lawn or a recyclable artificial lawn.
3. A water storing artificial lawn system structure as claimed in claim 2, wherein said recyclable artificial lawn is a hot melt adhesive coated artificial lawn with a non-woven fabric or a hot melt net film as its back.
4. A water storing artificial lawn system structure as claimed in claim 2 or 3, wherein the recyclable artificial lawn has a shrinkage rate of 0.1-0.2% in a longitudinal direction and 0.05-0.1% in a transverse direction.
5. A water storing artificial lawn system structure as claimed in claim 1, wherein said barrier layer (2) is one of PP woven cloth, non-woven cloth or spot-molded non-woven cloth.
6. A water storage artificial lawn system structure as claimed in claim 5, wherein said dot-molded non-woven fabric is one of a single-sided dot-molded non-woven fabric and a double-sided dot-molded non-woven fabric, and the grammage of the non-woven fabric is 100-500g/m 2 The gram weight of the spot molding is 50-150g/m 2 The density of the dot-plastomer is 4-6 ten thousand/m 2 。
7. A water storage artificial lawn system structure as claimed in claim 5 or 6, wherein the main base material of the non-woven fabric comprises one or more of polypropylene, terylene and nylon, and the main base material of the dot plastic comprises one of PVC, PMMA and silica gel.
8. A water storing artificial lawn system structure as claimed in claim 1, wherein said elastic cushion layer (3) is one of a 3D silk cushion layer or IXPE foam cushion layer, TPU foam cushion layer.
9. A water storage artificial lawn system structure as claimed in claim 8, wherein the 3D silk pad layer comprises a 3D silk irregular winding layer with a hollowed-out structure, and the blocking layer is arranged on an upper surface of the 3D silk irregular winding layer;
or the barrier layer comprises a 3D silk W-shaped cushion layer, the 3D silks are circularly arranged according to a W shape to form the W-shaped cushion layer, and the barrier layer (2) is arranged on the upper surface of the 3D silk W-shaped cushion layer;
or weave the bed course including 3D, including upper and lower two-layer non-woven fabrics layer and the middle supporting layer that has hollow out construction, middle supporting layer is fixed in the middle of two-layer non-woven fabrics through weaving process for the 3D silk, barrier layer (2) are arranged 3D weaves the bed course upper surface.
10. The water storage artificial lawn system structure of claim 9, wherein the 3D silk cushion layer, the 3D silk W-shaped cushion layer, the 3D silk cushion layer in the 3D woven cushion layer and the 3D silk involved in the 3D silk W-shaped cushion layer are mainly made of: polyethylene, polypropylene, polyethylene terephthalate, polyamide, ethylene-octene copolymer, ethylene-vinyl acetate copolymer, polyethylene and polypropylene blend, polyethylene and ethylene-octene blend, polyethylene and ethylene-vinyl acetate blend, polypropylene and ethylene-octene blend, polypropylene and ethylene-vinyl acetate blend.
11. A water storing artificial lawn system structure as claimed in claim 10, wherein the 3D filaments in the 3D filament mat layer are solid or hollow with a diameter of 0.1-4mm, the 3D filament mat layer has a thickness of 5-30mm and a density of 30-200kg/m 3 。
12. A water storage artificial lawn system structure as claimed in claim 1, wherein the depth of the water storage tank (4) is 5-50mm, and the thickness of the hollowed support frame is not more than 50mm.
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