CN110733156A - Processing technology of polyurethane cushion layers and artificial turf cushion layer - Google Patents
Processing technology of polyurethane cushion layers and artificial turf cushion layer Download PDFInfo
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- CN110733156A CN110733156A CN201910841971.1A CN201910841971A CN110733156A CN 110733156 A CN110733156 A CN 110733156A CN 201910841971 A CN201910841971 A CN 201910841971A CN 110733156 A CN110733156 A CN 110733156A
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- polyurethane
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
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- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B2307/726—Permeability to liquids, absorption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a processing technology of polyurethane cushion layers and an artificial lawn cushion layer, wherein the processing technology of the polyurethane cushion layer mainly comprises a crushing step, a screening step, a mixing step, a foaming step and a cutting step, the technology adopts recycled polyurethane leftover materials as raw materials and combines a specific preparation processing technology to prepare the polyurethane cushion layer with better shock absorption performance, good rebound resilience, good water seepage performance and water retention performance, so that the performance of the polyurethane cushion layer meets the requirements of a sports ground, the production cost is greatly reduced, and the polyurethane cushion layer can be widely applied to sports occasions by .
Description
Technical Field
The invention relates to the technical field of artificial lawns, in particular to a processing technology of polyurethane cushion layers and an artificial lawn cushion layer.
Background
To simulate a natural grass, a conventional sports field is typically constructed by laying thin artificial grass layers and then providing artificial grass underlayments or sand underneath the artificial grass layers to ensure that the performance of the field meets the needs of the player.
The artificial turf cushion layer is mainly made of polyethylene composite, and has the defects of poor resilience, easiness in deformation of the cushion layer caused by expansion and contraction due to heat, low compactness, short service life and the like in the use process.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a processing technology of polyurethane cushion layers, the polyurethane cushion layer prepared by the processing technology has better shock absorption performance, good rebound resilience, good water seepage performance and water retention performance, and the production cost is greatly reduced, so that the polyurethane cushion layer can be widely applied to sports occasions by .
The object of the invention is realized by the following technical scheme:
A process for preparing the polyurethane cushion layer includes the following steps:
a crushing step: and pouring the recovered polyurethane leftover materials into a grinder, and grinding into fine polyurethane particles. Compared with pure polyurethane particles, the invention adopts the recycled polyurethane leftover materials as raw materials, has low raw material price and greatly reduces the production cost of the polyurethane cushion layer from the origin.
A screening step: and screening the fine polyurethane particles in the crushing step to screen out polyurethane particles with the diameter of 2-5 mm.
Mixing: mixing the screened polyurethane particles with a polyurethane adhesive according to the weight ratio of 10: adding the mixture into a stirrer according to the proportion of 1, uniformly stirring, and pouring into a mould.
A foaming step: conveying the mold to a foaming box by using a conveying belt, and introducing 100-DEG C steam into the foaming box to foam and shape the mixture to obtain a semi-finished polyurethane cushion layer; wherein the steam is introduced for 30-45 min. Foaming to make the mixture generate a micropore structure, and shaping to form the cushion layer.
Cutting: and placing the semi-finished product of the polyurethane cushion layer in a natural state for 24-30 hours, and cutting and trimming the cushion layer after the cushion layer is stable, thereby obtaining the polyurethane cushion layer.
In the preparation process, the recycled polyurethane leftover materials are used as the raw materials of the polyurethane cushion layer, and the waste polyurethane leftover materials are recycled, so that the production cost is greatly reduced, and the preparation process is green and environment-friendly.
The elastic force of the prepared polyurethane cushion layer is partially derived from the polyurethane material per se, and the other part is derived from the micropore structure formed in the cushion layer, so that the adhesive in the invention not only plays a role of connecting polyurethane particles, but also forms a mixture with the screened polyurethane particles, so that steam is favorably used for forming the micropore structure in the mixture, thereby ensuring that the cushion layer prepared by using recycled leftover materials has better elasticity and recoverability and meets the requirements of sports fields, secondly, the diameter of the screened polyurethane particles is preferably 2-5mm, if the diameter is too small, the purity of the polyurethane particles is very low, namely, the contained polyurethane material is less, thereby affecting the performance of the cushion layer prepared subsequently, if the diameter is too large, the compactness of the prepared cushion layer is too low, the performance of the cushion layer is poorer, furthermore, if the diameter is too large, the cushion layer cannot be well formed in the later stage, uniform micropore structure can not be formed in the foaming process, thereby affecting the performance of the cushion layer, and the performance of the cushion layer can not be well formed in a uniform and systematic mode, even when the cushion layer is formed by using the lawn foam structure is too high as a lawn trimming process, the pore structure, the foam adhesive is too high as opposed to be formed, the proportion of 10: 1, the lawn foaming process, the pore structure can be formed in a lawn stretching process, the lawn trimming process, the pore structure can be formed by a poor, the pore structure can be formed by a high pore structure can be formed by a micro-100, the micro-forming process, the micro-pore structure can be formed, the micro-pore structure can be formed micro-pore structure can be formed, the micro-pore structure can be formed micro-formed under the micro-pore structure can be formed under the micro-pore structure can be ensured, the micro-formed, the micro-pore structure can be formed under the micro-formed cushion layer can be formed under the micro-formed cushion layer can be well, the micro-formed under the micro-formed, the micro-formed cushion layer can be formed micro-formed.
The density of the polyurethane cushion layer prepared by the processing technology is 150kg/m3The diameter of the micropores is about 0.4-0.5mm, and the distance between the micropores is 0.2-0.3 mm.
As an example of the step , the temperature of the steam introduced during the foaming step is 110 ℃ to enable the foaming process to be more stably performed, thereby better forming the microcellular structure.
The invention also aims to provide kinds of artificial turf cushion layers with good shock absorption performance, high compactness, good water seepage performance and good water retention performance.
The second purpose of the invention is realized by adopting the following technical scheme:
artificial turf cushion layers comprising the polyurethane cushion layer prepared by any examples, the artificial turf cushion layer prepared by the polyurethane cushion layer prepared by the process can meet the requirements of sports occasions and greatly reduce the application cost.
As a further example, the polyurethane underlayment is 20 mm-compared to the prior art, thin layers of polyurethane artificial turf (about 3-5mm), the polyurethane artificial turf underlayment of this example is 20mm, which is significantly more deformable than polyurethane artificial turf.
In this embodiment, the th non-woven fabric is equivalent to a th protective film which protects the polyurethane cushion layer below the th non-woven fabric, and then the th non-woven fabric is covered on the polyurethane cushion layer, so that the surface of the artificial lawn cushion layer is more attractive and elegant.
As an embodiment of , the thickness of the polyurethane cushion layer is 10mm to 20mm, and customers can select polyurethane cushion layers with different thicknesses according to the elasticity requirements of a field, when the thickness of the polyurethane cushion layer is smaller, the elasticity of the artificial turf cushion layer is lower, and the shock absorption performance is poorer, and when the thickness of the polyurethane cushion layer is larger, the elasticity of the artificial turf cushion layer is higher, and the shock absorption performance is better.
, coating a nontoxic, harmless and tasteless aqueous adhesive on the surface of the polyurethane cushion layer, pressing the th non-woven fabric layer on the surface coated with the polyurethane cushion layer by using a laminating machine, so that the th non-woven fabric layer and the polyurethane cushion layer are laminated on . since the material of the non-woven fabric layer and the material of the polyurethane cushion layer are not samples, the laminating temperature is set to be 180 ℃ and 200 ℃, and the usage amount of the aqueous adhesive is set to be 60-70 grams per square, so that the upper surface of the aqueous adhesive under the condition can be well laminated with the surface of the non-woven fabric layer, the lower surface of the aqueous adhesive can be well laminated with the surface of the polyurethane cushion layer, and the non-woven fabric layer and the polyurethane cushion layer are tightly adhered on the surface, so that the tear resistance of the artificial lawn is enhanced.
According to the step, the lawn bedding further comprises a second non-woven fabric layer, wherein the second non-woven fabric layer is bonded to the lower surface of the polyurethane cushion layer, the second non-woven fabric layer is matched with the non-woven fabric layer to achieve all-round protection of the polyurethane cushion layer, and the step is carried out to enhance the tear resistance of the whole lawn cushion layer.
As an example of step , the polyurethane cushion layer is 10mm to 20 mm.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a processing technology of polyurethane cushion layers, which adopts recycled polyurethane leftover materials as raw materials, combines a specific preparation processing technology to prepare the polyurethane cushion layer with better shock absorption performance, good rebound resilience, good water seepage performance and water retention performance so as to meet the performance requirements of a sports ground, and greatly reduces the production cost, thereby enabling the polyurethane cushion layer to be widely applied to sports occasions by .
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of an artificial turf mat according to the present invention.
In the figure, 1 is an th non-woven fabric layer, 2 is a polyurethane cushion layer, and 3 is a second non-woven fabric layer.
Detailed Description
The invention will be described in with reference to the drawings and the detailed description, and it should be noted that any combination of the following embodiments or technical features can be used to form a new embodiment without conflict.
The processing technology of polyurethane cushion layers mainly comprises the following steps:
a crushing step: and pouring the recovered polyurethane leftover materials into a grinder, and grinding into fine polyurethane particles.
A screening step: and screening the fine polyurethane particles in the crushing step to screen out polyurethane particles with the diameter of 2-5 mm.
And a mixing step, namely adding the screened polyurethane particles and a polyurethane adhesive into a stirrer according to the proportion of 10: 1, uniformly stirring, pouring into a mold, and connecting the polyurethane particles to by using the adhesive in a foaming process so as to form a cushion layer in a later period.
And a foaming step, namely, transporting the mold to a foaming box by using a transport belt, introducing 100-120 ℃ steam into the foaming box to foam and shape the mixture to obtain a semi-finished product of the polyurethane cushion layer, wherein the steam introduction time is 30-45min, the mixture is foamed to generate a microporous structure, and the mixture is shaped to form the cushion layer, and the steam temperature is preferably 110 ℃ in the step.
Cutting: and placing the semi-finished product of the polyurethane cushion layer in a natural state for 24-30 hours, and cutting and trimming the cushion layer after the cushion layer is stable, thereby obtaining the polyurethane cushion layer.
The density of the polyurethane cushion layer prepared by the processing technology is 150kg/m3The diameter of the micropores is 0.4-0.5mm, and the distance between the micropores is 0.2-0.3mm, the polyurethane cushion layer prepared by the processing technology has better shock absorption performance, good rebound resilience, good water permeability and water retention performance so as to meet the performance requirement of a sports ground, and the production cost is greatly reduced, so that the polyurethane cushion layer can be widely applied to sports occasions by .
The relevant properties of the polyurethane cushion prepared by the process of the invention are shown in table 1:
TABLE 1
| Test items | Test method | Test results |
| Thickness of | EN 1969 | 10.5mm |
| Shock absorption | FIFA Test Method 04a | 41.8％ |
| Vertical deformation | FIFA Test Method 05a | 6.2mm |
| Tensile strength | EN 12230 | 0.18Mpa |
| Weight per unit area | EN 430 | 1561g/m2 |
| Water permeability | EN 12616 | >2000mm/h |
The impact absorption refers to the absorption performance of the cushion layer to potential energy when the cushion layer is impacted, namely the damping performance of the cushion layer. The vertical deformation is deformation of the mat layer in the vertical direction when the weight falls down at a predetermined height, and the resilience of the mat layer is also reflected on the side surface. Tensile strength is the maximum tensile stress to which a specimen is subjected until it breaks in a tensile test. As shown in Table 1, the polyurethane cushion layer prepared by the invention has good impact absorption, vertical deformation, tensile strength and water permeability, namely the side surface shows that the cushion layer has good damping performance, good resilience performance, good water permeability and water retention performance.
The polyurethane cushion layer prepared by the process is applied to an artificial turf cushion layer, so that the requirements of sports occasions can be met, and the application cost can be greatly reduced.
Example 1:
kinds of artificial turf mats, comprising a polyurethane mat, the thickness of the polyurethane mat in this embodiment is preferably 20 mm.
Example 2:
kinds of artificial turf cushion layers, including polyurethane cushion layer and nonwoven fabric layer, wherein, the th nonwoven fabric layer is bonded on the upper surface of the polyurethane cushion layer, compared with the embodiment 1, in this embodiment, the th nonwoven fabric layer is equivalent to protective film, which protects the polyurethane cushion layer below, thus enhancing the anti-tearing ability of the whole turf cushion layer, secondly, the artificial turf cushion layer surface is more beautiful and elegant, in this embodiment, the thickness of the polyurethane cushion layer is preferably 10mm-20mm, according to the elastic requirement of the field, customers can select polyurethane cushion layers with different thicknesses, when the thickness of the polyurethane cushion layer is smaller, the elasticity of the artificial turf cushion layer is lower, the damping performance is worse, when the thickness of the polyurethane cushion layer is larger, the elasticity of the artificial turf cushion layer is higher, the damping performance is better, the thickness of the polyurethane cushion layer prepared by the invention is 10-20mm, which ensures the resilience performance of the artificial turf cushion layer and the damping performance of the artificial turf cushion layer.
The processing flow of the artificial turf mat layer of the embodiment 2 mainly includes: gluing, pressing, laminating and drying; the method comprises the following specific steps:
coating nontoxic, harmless and tasteless water-based adhesive on surfaces of the polyurethane cushion layer, pressing the non-woven fabric layer on surfaces coated with the polyurethane cushion layer by using a laminating machine, and laminating the non-woven fabric layer and the polyurethane cushion layer on , wherein the temperature during lamination is 180-200 ℃, and the using amount of the water-based adhesive is 60-70 g per square.
Example 3:
Artificial turf mat layer, comprising a polyurethane mat layer 2, a non-woven fabric layer 1 and a second non-woven fabric layer 3, as shown in figure 1, wherein the non-woven fabric layer 1 is adhered on the upper surface of the polyurethane mat layer 2, and the second non-woven fabric layer 3 is adhered on the lower surface of the polyurethane mat layer 2. compared with the embodiment 2, the upper and lower non-woven fabric layers protect the polyurethane mat layer in all directions, and the anti-tearing capability of the whole turf mat layer is further enhanced .
The processing flow of the artificial turf mat layer of the embodiment 3 mainly includes: gluing, pressing, laminating and drying; the method comprises the following specific steps:
coating nontoxic, harmless and tasteless water-based adhesive on surfaces of the polyurethane cushion layer, pressing layers of the non-woven fabric layer on surfaces coated with the polyurethane cushion layer by using a laminating machine, and laminating the non-woven fabric layer and the polyurethane cushion layer on , wherein the temperature during lamination is 180-200 ℃, the using amount of the water-based adhesive is 60-70 grams per square, and the other layers of the non-woven fabric layer are laminated on the other surfaces of the polyurethane cushion layer according to the same steps.
The relevant properties of the artificial turf mat of example 3 above, measured according to the standard GB36246-2018, "sports field for surface layer of synthetic material for primary and secondary schools", are shown in table 2:
TABLE 2
As shown in table 2, the artificial turf mat layer containing the polyurethane mat layer has good impact absorption and vertical deformation performance, that is, when a person exercises on the turf, joint parts such as soles, bare feet and knees are not easy to be injured; secondly, because vertical deformation is better, the ball is good at the rebound effect on the lawn to strengthen sporter's experience.
In addition, the artificial turf cushion layer mainly made of the recycled polyurethane leftover materials does not contain any volatile organic compounds, heavy metals and the like through detection, is safe, environment-friendly, non-toxic and harmless, and meets the safety standard of sports grounds.
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 (9)
1, kinds of polyurethane cushion layer processing technology, wherein the processing technology comprises the following steps:
a crushing step: pouring the recovered polyurethane leftover materials into a grinder, and grinding the polyurethane leftover materials into fine polyurethane particles;
a screening step: screening the fine polyurethane particles in the crushing step to screen out polyurethane particles with the diameter of 2-5 mm;
mixing: mixing the screened polyurethane particles with a polyurethane adhesive according to the weight ratio of 10: 1, adding the mixture into a stirrer, uniformly stirring, and pouring the mixture into a mold;
a foaming step: conveying the mold to a foaming box by using a conveying belt, and introducing 100-DEG C steam into the foaming box to foam and shape the mixture to obtain a semi-finished polyurethane cushion layer; wherein the steam is introduced for 30-45 min;
cutting: and placing the semi-finished product of the polyurethane cushion layer in a natural state for 24-30 hours, and cutting and trimming the cushion layer after the cushion layer is stable, thereby obtaining the polyurethane cushion layer.
2. The process for producing a polyurethane cushion as claimed in claim 1, wherein: in the foaming step, the temperature of the introduced steam is 110 ℃.
An artificial turf mat of claim 3 or , comprising the polyurethane mat prepared according to claim 1 or 2.
4. An artificial turf mat as claimed in claim 3, wherein: the polyurethane cushion layer is 20 mm.
5. The artificial turf mat of claim 3 further comprising an th non-woven layer, said th non-woven layer being bonded to said polyurethane mat upper surface.
6. An artificial turf mat as claimed in claim 5, wherein: the polyurethane cushion layer is 10mm-20 mm.
7. The artificial turf cushion as claimed in claim 5, wherein the process flow of the artificial turf cushion is that non-toxic, harmless and tasteless water-based glue is coated on surfaces of the polyurethane cushion, a laminating machine is adopted to press the non-woven fabric layer on surfaces coated with the polyurethane cushion, and the non-woven fabric layer and the polyurethane cushion are bonded to , wherein the temperature during bonding is 180-200 ℃, and the usage amount of the water-based glue is 60-70 g per square.
8. An artificial turf mat as claimed in claim 5, wherein: the polyurethane cushion further comprises a second non-woven fabric layer, and the second non-woven fabric layer is bonded to the lower surface of the polyurethane cushion layer.
9. An artificial turf mat as claimed in claim 8, wherein: the polyurethane cushion layer is 10mm-20 mm.
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| CN201910841971.1A CN110733156A (en) | 2019-09-06 | 2019-09-06 | Processing technology of polyurethane cushion layers and artificial turf cushion layer |
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