Preparation method of cement-based artificial lawn carpet and application of cement-based artificial lawn carpet in airport

Abstract

The invention discloses a preparation method of a cement-based artificial lawn blanket, and belongs to the technical field of greening engineering. According to the preparation method, the cement-based artificial lawn blanket comprises three-dimensional mesh cloth, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plant comprises a green leaf part and a grass root part; the preparation method comprises the following steps: S01, preparing the three-dimensional mesh cloth; s02, preparing simulated green plants from low-density polyethylene flame retardant resin, and arranging the simulated green plants in the three-dimensional mesh cloth; s03, pouring a cement-based composite material into the three-dimensional mesh cloth; s04, spraying a packaging layer on the bottom of the three-dimensional mesh cloth; wherein in the step S02, linear low-density polyethylene is used as a matrix for preparing the low-density polyethylene flame retardant resin, and the low-density polyethylene flame retardant resin comprises a composite flame-retardant material composed of an electrodeless flame-retardant material and an organic flame-retardant material. According to the cement-based artificial lawn carpet obtained through the preparation method of the cement-based artificial lawn carpet, simulated green plants are good in flame retardance, and the outdoor color is stable.

Description

Technical Field

[0001] The invention belongs to the technical field of greening engineering, and in particular relates to a preparation method of a cement-based artificial turf blanket and application thereof in airports. Background Art

[0002] As the requirements for airport environment continue to increase, runway greening has become an important consideration. Traditional greening methods have many problems in the airport runway area, and cement-based turf blanket, as a new material, may bring new solutions to airport runway greening.

[0003] CN221645474U discloses an implantable cement-based lawn blanket. The lawn blanket includes: a three-dimensional mesh; simulated green plants, which are arranged on the three-dimensional mesh, penetrate the three-dimensional mesh, and extend to the bottom of the three-dimensional mesh; a cement-based composite material, which is poured into the three-dimensional mesh; and a packaging layer, which is arranged at the bottom of the three-dimensional mesh and is used to cover the three-dimensional mesh layer. The three-dimensional mesh poured with cement-based composite materials is used as the base layer to solidify the implanted simulated green plants together. The cement-based composite material has a high bonding strength with the polyester fiber of the three-dimensional mesh, which makes it difficult to break. The three-dimensional mesh has the characteristics of high tensile strength, no deformation, good UV resistance and aging resistance, which ensures the quality of the lawn blanket. The packaging layer and quick-setting rubber asphalt waterproof coating are provided. The film is basically formed after spraying for 4 seconds. The film can be well bonded to the base surface, which can ensure the quality and stability of the artificial lawn, and the ground of the laying site does not need to be hardened. The simulated green plants are made of ordinary low-density polyethylene resin and green masterbatch, with poor flame retardant properties and easy color change outdoors. The problem caused by this when cement-based artificial turf carpets are laid at airports is that they have poor flame retardancy, affecting the safety of aircraft and customers, and at the same time, the color changes, which is not good for people's senses. Summary of the invention

[0004] In view of the above problems, the present invention proposes a method for preparing a cement-based artificial turf blanket with good flame retardancy of simulated green plants and stable outdoor color.

[0005] The first aspect of the present invention is to disclose a method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; the preparation method comprises the following steps: S01, preparing a three-dimensional mesh; S02, preparing simulated green plants using low-density polyethylene flame retardant resin, and setting them in the three-dimensional mesh; S03, pouring cement-based composite material into the three-dimensional mesh; S04, spraying a packaging layer on the bottom of the three-dimensional mesh cloth; Among them, in S02, the raw material for preparing the low-density polyethylene flame retardant resin is based on linear low-density polyethylene, including a composite flame retardant material composed of an inorganic flame retardant material and an organic flame retardant material.

[0006] In some embodiments of the present invention, in S02, the low-density polyethylene flame retardant resin is drawn by an extruder and then heat-stretched to obtain green leaf parts and grass root parts that meet the required specifications, and then the grass root parts of the simulated green plants are implanted into the three-dimensional mesh, and the roots of the green leaf parts pass through the three-dimensional mesh and are tufted at the bottom of the three-dimensional mesh.

[0007] In some embodiments of the present invention, the raw materials for preparing the low-density polyethylene flame retardant resin include linear low-density polyethylene, low-density polyethylene branched maleic anhydride, nylon 6, aluminum hydroxide and 2,3-dimethyl-2,3-diphenylbutane; Preferably, the weight ratio of the aluminum hydroxide to 2,3-dimethyl-2,3-diphenylbutane is (3-5): (3-5); Preferably, the weight ratio of the aluminum hydroxide and 2,3-dimethyl-2,3-diphenylbutane to the linear low-density polyethylene, low-density polyethylene branched maleic anhydride, and nylon 6 is (5-10): (160-190), and more preferably 8: (160-190).

[0008] In some embodiments of the present invention, the raw materials for preparing the low-density polyethylene flame retardant resin include linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6, aluminum hydroxide, 2,3-dimethyl-2,3-diphenylbutane, antioxidant 168, nano titanium dioxide and green masterbatch; Preferably, the raw materials for preparing the low-density polyethylene flame retardant resin include the following components in parts by weight: 80-120 parts of linear low-density polyethylene, 5-10 parts of low-density polyethylene branched maleic anhydride, 3-10 parts of pentaerythritol, 40-60 parts of nylon 6, 3-5 parts of aluminum hydroxide, 3-5 parts of 2,3-dimethyl-2,3-diphenylbutane, 1-5 parts of antioxidant 168, 1-10 parts of nano titanium dioxide and 1-5 parts of green masterbatch.

[0009] In some preferred embodiments of the present invention, the raw materials for preparing the low-density polyethylene flame retardant resin include the following components in parts by weight: 80-120 parts of linear low-density polyethylene, 10 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 40-60 parts of nylon 6, 3-5 parts of aluminum hydroxide, 3-5 parts of 2,3-dimethyl-2,3-diphenylbutane, 2 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0010] In some embodiments of the present invention, the raw materials for preparing the low-density polyethylene flame retardant resin include linear low-density polyethylene, ultra-low-density polyethylene, low-density polyethylene branched maleic anhydride and antioxidant 168; Preferably, the weight ratio of the linear low-density polyethylene to the ultra-low-density polyethylene is greater than 50:55, and more preferably (85-95):(10-20); Preferably, the weight ratio of the low-density polyethylene branched with maleic anhydride to the ultra-low-density polyethylene, ultra-low-density polyethylene and low-density polyethylene branched with maleic anhydride is greater than 5:110, and more preferably (10-20):110.

[0011] Preferably, the weight ratio of the antioxidant to low-density polyethylene, ultra-low-density polyethylene and low-density polyethylene branched maleic anhydride is greater than 1:110, and more preferably (3-5):110.

[0012] In some embodiments of the present invention, the raw materials for preparing the low-density polyethylene flame retardant resin include linear low-density polyethylene, ultra-low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6, aluminum hydroxide, 2,3-dimethyl-2,3-diphenylbutane, antioxidant 168, nano titanium dioxide and green masterbatch; Preferably, the raw materials for preparing the low-density polyethylene flame retardant resin include the following components in parts by weight: 85-95 parts of linear low density polyethylene, 1-10 parts of ultra low density polyethylene, 10-20 parts of low density polyethylene branched maleic anhydride, 1-10 parts of pentaerythritol, 40-60 parts of nylon 6, 1-10 parts of aluminum hydroxide, 1-5 parts of 2,3-dimethyl-2,3-diphenylbutane, 2-5 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1-5 parts of green masterbatch.

[0013] In some preferred embodiments of the present invention, the raw materials for preparing the low-density polyethylene flame retardant resin include the following components in parts by weight: 85-95 parts of linear low density polyethylene, 5 parts of ultra low density polyethylene, 10-20 parts of low density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 5 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 3 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0014] In some embodiments of the present invention, when preparing the low-density polyethylene flame retardant resin, other raw materials except antioxidants and green master batch are added to a high-speed mixer, stirred and mixed, and the stirred mixture is discharged into a twin-screw extruder for extrusion; antioxidants and green master batches are added and mixed, and granulated by extrusion and drying using a twin-screw extruder; wire drawing is performed using an extruder, and then heat stretching is performed to obtain green leaf parts and grass root parts that meet the required specifications.

[0015] The second aspect of the present invention is to disclose the application of the preparation method of the cement-based artificial turf blanket described in the first aspect in the construction of airport greening projects.

[0016] The third aspect of the present invention is to disclose the application of the preparation method of the cement-based artificial turf blanket described in the first aspect in the construction of railway greening projects.

[0017] The second aspect of the present invention is to disclose the application of the preparation method of the cement-based artificial turf blanket described in the first aspect in the construction of highway slope protection and greening projects.

[0018] Beneficial effects: In the preparation method of the cement-based artificial turf blanket of the present invention, low-density polyethylene is used as the main matrix, and aluminum hydroxide and 2,3-dimethyl-2,3-diphenylbutane are used as the main combustion aids to work synergistically. Aluminum hydroxide and 2,3-dimethyl-2,3-diphenylbutane interact with each other in low-density polyethylene to jointly improve the flame retardant properties of the material. Aluminum hydroxide releases moisture when heated to reduce the surface temperature of the material, and the aluminum oxide generated at the same time forms an insulating layer to slow down heat transfer and oxygen contact. 2,3-Dimethyl-2,3-diphenylbutane acts as a synergist to enhance the cross-linked structure of low-density polyethylene, improve the stability and strength of the carbon layer, make the carbon layer formed during combustion more compact, effectively isolate oxygen and heat, and reduce the burning rate of the material. This synergistic effect not only improves the flame retardant effect of low-density polyethylene, but also reduces the smoke release during combustion, thereby enhancing the safety of the material.

[0019] During the preparation process, it was unexpectedly found that adding ultra-low density polyethylene and increasing the content of low-density polyethylene branched with maleic anhydride can significantly enhance the anti-ultraviolet performance and light stability of antioxidants and nano-titanium dioxide. The study also found that the role of ultra-low density polyethylene and low-density polyethylene branched with maleic anhydride requires sufficient antioxidants, and increasing the content of green masterbatch alone cannot maintain color stability. DETAILED DESCRIPTION

[0020] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0021] The linear low-density polyethylene LDPE is DFDA-7042 from Qilu Petrochemical, the ultra-low-density polyethylene LLDPE is Dow's 4606, the low-density polyethylene branched maleic anhydride is DuPont's 41E710, and the green masterbatch is ABS green masterbatch 12008. The nine-stage processing temperature of the twin-screw extruder is set as follows: the temperature of zone 1 is 160°C, the temperature of zone 2 is 175°C, the temperature of zone 3 is 190°C, the temperature of zone 4 is 200°C, the temperature of zone 5 is 205°C, the temperature of zone 6 is 210°C, the temperature of zone 7 is 205°C, the temperature of zone 8 is 200°C, and the temperature of zone 9 is 195°C.

[0022] Unless otherwise specified, the examples and comparative examples are parallel tests with the same parameters such as components, component contents, preparation steps, preparation parameters, and dimensions.

[0023] Example 1 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0024] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0025] The raw materials for preparing the low-density polyethylene flame retardant resin include 100 parts of linear low-density polyethylene, 10 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 5 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 2 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0026] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0027] Example 2 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0028] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0029] The raw materials for preparing the low-density polyethylene flame retardant resin include 80 parts of linear low-density polyethylene, 10 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 40 parts of nylon 6, 3 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 2 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0030] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0031] Example 3 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0032] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0033] The raw materials for preparing the low-density polyethylene flame retardant resin include 120 parts of linear low-density polyethylene, 10 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 60 parts of nylon 6, 5 parts of aluminum hydroxide, 5 parts of 2,3-dimethyl-2,3-diphenylbutane, 2 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0034] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0035] Example 4 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0036] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0037] The raw materials for preparing the low-density polyethylene flame retardant resin include 90 parts of linear low-density polyethylene, 5 parts of ultra-low-density polyethylene, 15 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 5 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 3 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0038] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0039] Example 5 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0040] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0041] The raw materials for preparing the low-density polyethylene flame retardant resin include 95 parts of linear low-density polyethylene, 5 parts of ultra-low-density polyethylene, 10 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 5 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 3 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0042] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0043] Example 6 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0044] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0045] The raw materials for preparing the low-density polyethylene flame retardant resin include 85 parts of linear low-density polyethylene, 5 parts of ultra-low-density polyethylene, 20 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 5 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 3 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0046] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0047] Comparative Example 1 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0048] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0049] The raw materials for preparing the low-density polyethylene flame retardant resin include 100 parts of linear low-density polyethylene, 10 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 8 parts of aluminum hydroxide, 2 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0050] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0051] Comparative Example 2 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0052] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0053] The raw materials for preparing the low-density polyethylene flame retardant resin include 100 parts of linear low-density polyethylene, 10 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 8 parts of 2,3-dimethyl-2,3-diphenylbutane, 2 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0054] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0055] Performance test 1: flame retardant performance The oxygen index of Examples 1-3 and Comparative Examples 1 and 2 was measured according to the method of "GB / T 2406.2-2009 Oxygen Index Method for Determination of Combustion Behavior of Plastics Part 2 Room Temperature Test". The results show that the oxygen index of Examples 1-3 is about 32, with good flame retardant properties, and the oxygen index of Comparative Examples 1 and 2 is lower than 28, which is significantly different from that of Examples 1-3 (P < 0.05).

[0056] Comparative Example 3 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0057] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0058] The raw materials for preparing the low-density polyethylene flame retardant resin include 95 parts of linear low-density polyethylene, 15 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 5 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 3 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0059] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0060] Comparative Example 4 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0061] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0062] The raw materials for preparing the low-density polyethylene flame retardant resin include 50 parts of linear low-density polyethylene, 55 parts of ultra-low-density polyethylene, 5 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 5 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 3 parts of antioxidant 168, 5 parts of nano titanium dioxide and 1 part of green masterbatch.

[0063] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0064] Comparative Example 5 A method for preparing a cement-based artificial turf blanket, the cement-based artificial turf blanket comprising a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; The preparation method includes implanting the grass root part of the simulated green plant into the three-dimensional mesh, the roots of the green leaf part (grass silk) pass through the three-dimensional mesh and tuft at the bottom of the three-dimensional mesh, then pouring the cement-based composite material into the three-dimensional mesh, and finally spraying the quick-setting rubber asphalt waterproof coating on the bottom of the three-dimensional mesh 1 as a packaging layer.

[0065] Among them, the preparation material of the green leaf part (grass silk) is low-density polyethylene flame retardant resin.

[0066] The raw materials for preparing the low-density polyethylene flame retardant resin include 90 parts of linear low-density polyethylene, 5 parts of ultra-low-density polyethylene, 15 parts of low-density polyethylene branched maleic anhydride, 5 parts of pentaerythritol, 50 parts of nylon 6, 5 parts of aluminum hydroxide, 3 parts of 2,3-dimethyl-2,3-diphenylbutane, 1 part of antioxidant 168, 5 parts of nano titanium dioxide and 1.5 parts of green masterbatch.

[0067] Add linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6 and aluminum hydroxide into a high-speed mixer, stir and mix for 5 minutes, and discharge the stirred mixture into a twin-screw extruder for extrusion; add antioxidants and green masterbatch, extrude and granulate using a twin-screw extruder, and dry; use an extruder to draw the wire, and then heat stretch it to obtain the green leaf part and grass root part that meet the specifications.

[0068] Performance test 2: flame retardancy and UV resistance 1 The oxygen index of Example 4-6 is about 30, slightly lower than that of Example 1-3, but without statistical significance (P>0.05).

[0069] 2 Use injection molding equipment to produce color standards and tensile samples, and use film blowing machines to manufacture film products. These products will then undergo weathering tests. The specific testing process includes: using a xenon lamp test device to simulate the lighting environment under natural light conditions, and continuously irradiating for 5,000 hours. After the test, evaluate the changes in the tensile strength and elongation at break of the samples to evaluate their aging resistance. According to the method of "GB / T 13022-1991 Test Method for Tensile Properties of Plastic Films", the tensile strength retention rate and elongation at break retention rate are calculated with the untreated sample as the benchmark of 100%.

[0070] The results show that the tensile strength and elongation at break of Example 1 are less than 80% of the untreated ones. Examples 4-6 are all above 90%, and Example 4 is the best, reaching 93% and 92%. The tensile strength and elongation at break of Comparative Examples 3 and 4 are 85%, 82% and 83%, 81%, respectively, which are significantly different from Examples 4-6 (P < 0.05).

[0071] In addition, it was found by naked eye observation that there was no significant difference in the green color of Examples 4-6 before and after treatment, while Comparative Examples 3 and 4 became slightly lighter, and Comparative Example 5 had a large color difference and was obviously whitish.

[0072] The preferred specific implementation modes and embodiments of the present invention are described in detail above, but the present invention is not limited to the above implementation modes and embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the concept of the present invention.

Claims

1. A method for preparing a cement-based artificial turf blanket, characterized in that: The cement-based artificial turf blanket comprises a three-dimensional mesh, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plants comprise a green leaf part and a grass root part; and the preparation method comprises the following steps: S01, preparing a three-dimensional mesh; S02, preparing simulated green plants using low-density polyethylene flame retardant resin, and setting them in the three-dimensional mesh; S03, pouring cement-based composite material into the three-dimensional mesh; S04, spraying a packaging layer on the bottom of the three-dimensional mesh cloth; Among them, in S02, the raw material for preparing the low-density polyethylene flame retardant resin is based on linear low-density polyethylene, including a composite flame retardant material composed of an inorganic flame retardant material and an organic flame retardant material.

2. The method for preparing a cement-based artificial turf carpet according to claim 1, characterized in that: In S02, the low-density polyethylene flame retardant resin is drawn by an extruder and then heat-stretched to obtain the green leaf part and the grass root part that meet the specification requirements. Then, the grass root part of the simulated green plant is implanted into the three-dimensional mesh, and the roots of the green leaf part pass through the three-dimensional mesh and are tufted at the bottom of the three-dimensional mesh.

3. The method for preparing a cement-based artificial turf blanket according to claim 1 or 2, characterized in that: The raw materials for preparing the low-density polyethylene flame retardant resin include linear low-density polyethylene, low-density polyethylene branched maleic anhydride, nylon 6, aluminum hydroxide and 2,3-dimethyl-2,3-diphenylbutane.

4. The method for preparing a cement-based artificial turf carpet according to claim 1 or 2, characterized in that: The raw materials for preparing the low-density polyethylene flame retardant resin include linear low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6, aluminum hydroxide, 2,3-dimethyl-2,3-diphenylbutane, antioxidant 168, nano titanium dioxide and green masterbatch.

5. The method for preparing a cement-based artificial turf carpet according to claim 1 or 2, characterized in that: The raw materials for preparing the low-density polyethylene flame retardant resin include linear low-density polyethylene, ultra-low-density polyethylene, low-density polyethylene branched maleic anhydride and antioxidant 168.

6. The method for preparing a cement-based artificial turf carpet according to claim 1 or 2, characterized in that: The raw materials for preparing the low-density polyethylene flame retardant resin include linear low-density polyethylene, ultra-low-density polyethylene, low-density polyethylene branched maleic anhydride, pentaerythritol, nylon 6, aluminum hydroxide, 2,3-dimethyl-2,3-diphenylbutane, antioxidant 168, nano titanium dioxide and green masterbatch.

7. The method for preparing a cement-based artificial turf carpet according to claim 6, characterized in that: When preparing the low-density polyethylene flame retardant resin, other raw materials except antioxidants and green master batch are added into a high-speed mixer, stirred and mixed, and the stirred mixture is discharged into a twin-screw extruder for extrusion; antioxidants and green master batch are added and mixed, and granulated by a twin-screw extruder, and dried; wire drawing is performed by an extruder, and then heat stretching is performed to obtain green leaf parts and grass root parts that meet the specifications.

8. Application of the preparation method of the cement-based artificial turf blanket according to any one of claims 1 to 7 in airport greening project construction.

9. Application of the preparation method of the cement-based artificial turf blanket according to any one of claims 1 to 7 in the construction of railway greening projects.

10. Application of the preparation method of the cement-based artificial turf blanket according to any one of claims 1 to 7 in the construction of highway slope protection and greening projects.