CN110577708A - Modified floating bead/graphene oxide flame-retardant runway particle material - Google Patents

Modified floating bead/graphene oxide flame-retardant runway particle material Download PDF

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Publication number
CN110577708A
CN110577708A CN201910980115.4A CN201910980115A CN110577708A CN 110577708 A CN110577708 A CN 110577708A CN 201910980115 A CN201910980115 A CN 201910980115A CN 110577708 A CN110577708 A CN 110577708A
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parts
retardant
graphene oxide
runway
flame
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郑玉婴
于文泰
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Fujian Chen Qi New Mstar Technology Ltd
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Fujian Chen Qi New Mstar Technology Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention discloses a modified floating bead/graphene oxide flame-retardant runway particle material and a preparation method thereof, wherein the modified floating bead/graphene oxide flame-retardant runway particle material comprises the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 10-50 parts of compound flame retardant, 5-12 parts of naphthenic oil, 5-10 parts of superfine white carbon black, 3-5 parts of hydrated lime, 1-2 parts of zinc stearate, 100 parts of calcium carbonate and 130 parts of plastic toner; the mass ratio of the modified floating beads to the graphene oxide in the compound flame retardant is 1-5: 1. the modified floating bead/graphene oxide flame-retardant runway particle material prepared by the invention has the characteristics of good flame-retardant effect, aging resistance, high tensile strength and the like, and has wide application prospect and huge market demand.

Description

Modified floating bead/graphene oxide flame-retardant runway particle material
Technical Field
The invention belongs to the technical field of plastic runways, and particularly relates to a modified floating bead/graphene oxide flame-retardant runway granular material and a preparation method thereof.
Background
The plastic track is an indispensable important facility in the modern track and field ground and has been set as one of the necessary conditions of the international competition ground by the international organization for Olympic Commission. Compared with the traditional soil track, the novel soil track has the advantages of good elasticity, skid resistance, wear resistance and shock absorption, easy field nursing, bright color, beauty and orderliness. In view of the above advantages, plastic runways are soon being adopted by various track and field sites. However, the runway particles belong to flammable materials, and are easy to cause fire in the using process, so that the property and personal safety of people are greatly threatened, and therefore, the functional modification of the runway particles in the aspect of flame retardance is imperative.
At present, the halogen flame retardant occupies the dominant position of the rubber and plastic material flame retardant due to the excellent characteristics of high flame retardant efficiency, moderate price, multiple varieties, wide application range and the like, and is a main method for improving the flame retardant performance. Although the halogen flame retardant has a very high flame retardant efficiency, it generates a large amount of corrosive gas such as hydrogen halide and smoke during thermal cracking or combustion. Once a fire disaster occurs, great difficulty is brought to escape and rescue personnel, death accidents can be caused in serious cases, and meanwhile, great threat is also formed to the environment. With the enhancement of the awareness of safety and environmental protection of people, the development of efficient, nontoxic and environment-friendly flame retardants becomes a requirement for the development of modern flame retardants.
Disclosure of Invention
The invention aims to provide a modified floating bead/graphene oxide flame-retardant runway particle material and a preparation method thereof, aiming at the defects of the prior art. The modified floating bead/graphene oxide flame-retardant runway particle material prepared by the invention has a good flame-retardant effect, the flame-retardant index of the particle material reaches UL94V0 level, the particle material does not contain halogen raw materials, the generated gas does not pollute the environment, and the particle material has good processability and mechanical properties, so that the particle material has a wide application prospect and market demand.
In order to achieve the purpose, the invention is realized by the following technical scheme:
A modified floating bead/graphene oxide flame-retardant runway granular material comprises the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 10-50 parts of compound flame retardant, 5-12 parts of naphthenic oil, 5-10 parts of superfine white carbon black, 3-5 parts of hydrated lime, 1-2 parts of zinc stearate, 100 parts of calcium carbonate and 130 parts of plastic toner.
The rubber-plastic elastomer comprises: polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), polyethylene, polypropylene, Ethylene Propylene Diene Monomer (EPDM), ethylene vinyl acetate copolymer (EVA), polyethylene grafted maleic anhydride and thermoplastic polyurethane.
The compound flame retardant is prepared from modified floating beads and graphene oxide according to a mass ratio of 1-5: 1 are compounded.
The polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) is linear high molecular weight SEBS.
The grafting rate of the polyethylene grafted maleic anhydride is 1.2%.
The content of vinyl acetate matrix in the ethylene-vinyl acetate copolymer is 13-18 wt%.
the preparation method of the compound flame retardant comprises the following steps: dissolving 1 part of graphene oxide in deionized water, adding 0.5 part of sodium hexadecylbenzene sulfonate, carrying out ultrasonic oscillation for 30min, then adding 1-5 parts of modified floating beads, stirring for 1h, washing, and then drying at 60 ℃. The graphene oxide is prepared by a Hummers method.
The specific preparation method of the modified floating bead comprises the following steps: 1) 10g of floating beads were dispersed in 100mL of 20% HNO3performing ultrasonic treatment for 1h, then washing with absolute ethyl alcohol for several times, and drying at 70 ℃. 2) Anhydrous ethanol and deionized water are weighed according to the volume ratio of 9:1 and mixed in a beaker, 2mLKH550 is added, and the mixture is stirred for 1 hour at room temperature. 3) Taking 2g of the acidified floating beads obtained in the step 1)Dispersing in the solution obtained in the step 2), stirring for 6h at the temperature of 80 ℃, washing with absolute ethyl alcohol, and drying at the temperature of 110 ℃. The particle size of the floating bead is 100 meshes.
The preparation method of the modified floating bead/graphene oxide flame-retardant runway particle material comprises the following steps:
1) Weighing various required materials according to the requirements of the formula;
2) Pouring the rubber-plastic elastomer into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 20-30min at 50 ℃, and setting the rotating speed at 200-300 r/min.
3) Pouring the rest materials weighed in the step 1) into a high-speed mixer, and continuously mixing for 20-30 min.
4) And transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 400-600r/min, and extruding and granulating to obtain the modified floating bead/graphene oxide flame-retardant runway granular material.
The fly ash floating bead is a byproduct rich in aluminosilicate and generated by a coal-fired power plant, can promote combustion to form carbon in a solid phase, can capture active free radicals in a gas phase state, and is expected to obtain a better flame retardant effect when applied to rubber and plastic materials. But because of its poor compatibility, it has poor dispersibility in polymer matrices, limiting its applications. The silane coupling agent KH550 contains good flame-retardant elements such as Si and N, and the KH550 is grafted to the floating bead structure, so that the flame-retardant property of the floating bead structure can be improved, and the dispersion of the floating bead structure in a system can be greatly promoted.
Graphene is a two-dimensional lamellar carbonaceous material, and is formed by tightly packing carbon atoms in a hexagonal honeycomb shape on the same plane. After oxidation treatment, the graphite oxide still maintains the layered structure of graphite, but a plurality of oxygen-based functional groups are introduced on each layer of graphene single sheet. Due to the unique two-dimensional layered structure of the graphene oxide, the graphene oxide has an excellent flame retardant effect, and the two-dimensional layered structure of the graphene oxide has a lamellar barrier effect, so that the heat transfer, the diffusion and the escape of pyrolysis products and the diffusion and the mixing of oxygen can be delayed. Meanwhile, rich oxygen-based functional groups on the surface of the graphene oxide can form a strong interface effect with a polymer matrix through chemical bonds, so that the thermal stability and fire safety of the polymer are improved.
The GO surface has a large amount of carboxyl, the floating bead surface contains a large amount of hydroxyl, and the carboxyl and the floating bead can be compounded in a chemical bonding mode to form a compound flame retardant. The graphene oxide can also increase the mechanical property of the matrix material while serving as a flame-retardant synergist.
The invention has the beneficial effects that: the modified floating bead/graphene oxide flame-retardant runway particle material prepared by the invention has a good flame-retardant effect, the flame-retardant index of the particle material reaches UL94V0 level, the particle material does not contain halogen raw materials, the generated gas does not pollute the environment, and the particle material has good processability and mechanical properties, wide application prospect and huge market demand.
Drawings
FIG. 1 is an SEM image of a floating bead;
FIG. 2 is an SEM image of a modified floating bead;
Fig. 3 is an SEM image of graphene oxide.
Detailed Description
in order to make the present invention more comprehensible, the technical solutions of the present invention are further described below with reference to specific embodiments, but the present invention is not limited thereto.
The invention is further illustrated by the following examples.
Example 1
A method for preparing a modified floating bead/graphene oxide flame-retardant runway particle material comprises the following specific steps:
1) 10g of floating beads were dispersed in 100mL of 20% HNO3Performing ultrasonic treatment for 1h, then washing with absolute ethyl alcohol for several times, and drying at 70 ℃.
2) Anhydrous ethanol and deionized water are weighed according to the volume ratio of 9:1 and mixed in a beaker, 2mL KH550 is added, and the mixture is stirred for 1 hour at room temperature.
3) Dispersing 2g of floating beads in the solution in the step 2), stirring for 6 hours at the temperature of 80 ℃, washing with absolute ethyl alcohol, and drying at the temperature of 110 ℃ to obtain the modified floating beads.
4) dissolving 1 part of GO prepared by a Hummers method in deionized water, adding 0.5 part of sodium hexadecylbenzene sulfonate, ultrasonically vibrating for 30min, then adding 1 part of modified floating beads, stirring for 1h, washing and drying at 60 ℃. And preparing the compound flame retardant.
5) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 10 parts of a compound flame retardant, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
6) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
7) Pouring the rest materials weighed in the step 5) into a high-speed mixer, and continuously mixing for 30 min.
8) And transferring the mixed materials into a double-screw extruder, extruding and granulating at the temperature of 180-200 ℃ and the rotating speed of 600r/min in each zone to obtain the modified floating bead/graphene oxide flame-retardant runway granular material.
Example 2
a method for preparing a modified floating bead/graphene oxide flame-retardant runway particle material comprises the following specific steps:
1) 10g of floating beads were dispersed in 100mL of 20% HNO3Performing ultrasonic treatment for 1h, then washing with absolute ethyl alcohol for several times, and drying at 70 ℃.
2) Anhydrous ethanol and deionized water are weighed according to the volume ratio of 9:1 and mixed in a beaker, 2mL KH550 is added, and the mixture is stirred for 1 hour at room temperature.
3) Dispersing 2g of floating beads in the solution in the step 2), stirring for 6 hours at the temperature of 80 ℃, washing with absolute ethyl alcohol, and drying at the temperature of 110 ℃ to obtain the modified floating beads.
4) dissolving 1 part of GO prepared by a Hummers method in deionized water, adding 0.5 part of sodium hexadecylbenzene sulfonate, carrying out ultrasonic oscillation for 30min, then adding 2 parts of modified floating beads, stirring for 1h, washing, and drying at 60 ℃. And preparing the compound flame retardant.
5) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 20 parts of a compound flame retardant, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
6) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
7) Pouring the rest materials weighed in the step 5) into a high-speed mixer, and continuously mixing for 30 min.
8) And transferring the mixed materials into a double-screw extruder, extruding and granulating at the temperature of 180-200 ℃ and the rotating speed of 600r/min in each zone to obtain the modified floating bead/graphene oxide flame-retardant runway granular material.
Example 3
a method for preparing a modified floating bead/graphene oxide flame-retardant runway particle material comprises the following specific steps:
1) 10g of floating beads were dispersed in 100mL of 20% HNO3Performing ultrasonic treatment for 1h, then washing with absolute ethyl alcohol for several times, and drying at 70 ℃.
2) Anhydrous ethanol and deionized water are weighed according to the volume ratio of 9:1 and mixed in a beaker, 2mL KH550 is added, and the mixture is stirred for 1 hour at room temperature.
3) Dispersing 2g of floating beads in the solution in the step 2), stirring for 6 hours at the temperature of 80 ℃, washing with absolute ethyl alcohol, and drying at the temperature of 110 ℃ to obtain the modified floating beads.
4) Dissolving 1 part of GO prepared by a Hummers method in deionized water, adding 0.5 part of sodium hexadecylbenzene sulfonate, carrying out ultrasonic oscillation for 30min, then adding 3 parts of modified floating beads, stirring for 1h, washing, and drying at 60 ℃. And preparing the compound flame retardant.
5) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 30 parts of compound flame retardant, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
6) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
7) Pouring the rest materials weighed in the step 5) into a high-speed mixer, and continuously mixing for 30 min.
8) And transferring the mixed materials into a double-screw extruder, extruding and granulating at the temperature of 180-200 ℃ and the rotating speed of 600r/min in each zone to obtain the modified floating bead/graphene oxide flame-retardant runway granular material.
Example 4
A method for preparing a modified floating bead/graphene oxide flame-retardant runway particle material comprises the following specific steps:
1) 10g of floating beads were dispersed in 100mL of 20% HNO3Performing ultrasonic treatment for 1h, then washing with absolute ethyl alcohol for several times, and drying at 70 ℃.
2) Anhydrous ethanol and deionized water are weighed according to the volume ratio of 9:1 and mixed in a beaker, 2mL KH550 is added, and the mixture is stirred for 1 hour at room temperature.
3) dispersing 2g of floating beads in the solution in the step 2), stirring for 6 hours at the temperature of 80 ℃, washing with absolute ethyl alcohol, and drying at the temperature of 110 ℃ to obtain the modified floating beads.
4) Dissolving 1 part of GO prepared by a Hummers method in deionized water, adding 0.5 part of sodium hexadecylbenzene sulfonate, carrying out ultrasonic oscillation for 30min, then adding 4 parts of modified floating beads, stirring for 1h, washing, and drying at 60 ℃. And preparing the compound flame retardant.
5) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 40 parts of a compound flame retardant, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
6) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
7) Pouring the rest materials weighed in the step 5) into a high-speed mixer, and continuously mixing for 30 min.
8) And transferring the mixed materials into a double-screw extruder, extruding and granulating at the temperature of 180-200 ℃ and the rotating speed of 600r/min in each zone to obtain the modified floating bead/graphene oxide flame-retardant runway granular material.
Example 5
A method for preparing a modified floating bead/graphene oxide flame-retardant runway particle material comprises the following specific steps:
1) 10g of floating beads were dispersed in 100mL of 20% HNO3Performing ultrasonic treatment for 1h, then washing with absolute ethyl alcohol for several times, and drying at 70 ℃.
2) Anhydrous ethanol and deionized water are weighed according to the volume ratio of 9:1 and mixed in a beaker, 2mL KH550 is added, and the mixture is stirred for 1 hour at room temperature.
3) dispersing 2g of floating beads in the solution in the step 2), stirring for 6 hours at the temperature of 80 ℃, washing with absolute ethyl alcohol, and drying at the temperature of 110 ℃ to obtain the modified floating beads.
4) Dissolving 1 part of GO prepared by a Hummers method in deionized water, adding 0.5 part of sodium hexadecylbenzene sulfonate, ultrasonically vibrating for 30min, then adding 5 parts of modified floating beads, stirring for 1h, washing, and drying at 60 ℃. And preparing the compound flame retardant.
5) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 50 parts of compound flame retardant, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
6) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
7) Pouring the rest materials weighed in the step 5) into a high-speed mixer, and continuously mixing for 30 min.
8) And transferring the mixed materials into a double-screw extruder, extruding and granulating at the temperature of 180-200 ℃ and the rotating speed of 600r/min in each zone to obtain the modified floating bead/graphene oxide flame-retardant runway granular material.
Comparative example 1
1) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
2) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
3) Pouring the rest of the weighed materials in the step 1) into a high-speed mixer, and continuously mixing for 30 min.
4) And transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the runway particle material.
Comparative example 2
1) weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 10 parts of modified floating beads, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
2) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
3) Pouring the rest of the weighed materials in the step 1) into a high-speed mixer, and continuously mixing for 30 min.
4) And transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the runway particle material.
Comparative example 3
1) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 20 parts of modified floating beads, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
2) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
3) pouring the rest of the weighed materials in the step 1) into a high-speed mixer, and continuously mixing for 30 min.
4) And transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the runway particle material.
Comparative example 4
1) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 30 parts of modified floating beads, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of hydrated lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
2) pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
3) Pouring the rest of the weighed materials in the step 1) into a high-speed mixer, and continuously mixing for 30 min.
4) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the runway particle material.
Comparative example 5
1) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 10 parts of graphene oxide, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of slaked lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner.
2) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
3) Pouring the rest of the weighed materials in the step 1) into a high-speed mixer, and continuously mixing for 30 min.
4) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the runway granular material.
Comparative example 6
1) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 20 parts of graphene oxide, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of slaked lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner.
2) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
3) Pouring the rest of the weighed materials in the step 1) into a high-speed mixer, and continuously mixing for 30 min.
4) And transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the runway granular material.
Comparative example 7
1) Weighing 20 parts of polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), 20 parts of thermoplastic polyurethane, 40 parts of Ethylene Propylene Diene Monomer (EPDM), 10 parts of polyethylene grafted maleic anhydride, 10 parts of polypropylene, 30 parts of graphene oxide, 12 parts of naphthenic oil, 5 parts of superfine white carbon black, 3 parts of slaked lime, 2 parts of zinc stearate, 100 parts of calcium carbonate and 0.5 part of plastic toner in parts by weight.
2) Pouring polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS) into a high-speed mixer, simultaneously pouring naphthenic oil, stirring and filling oil for 30min at 50 ℃, and setting the rotating speed at 200 r/min.
3) Pouring the rest of the weighed materials in the step 1) into a high-speed mixer, and continuously mixing for 30 min.
4) And transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the runway granular material.
Performance testing
Table 1 shows the flame retardant data of the modified floating bead/graphene oxide flame retardant runway particle material, and it can be seen from the table that, compared with comparative example 1 in which no flame retardant is added and comparative examples 2 to 7 in which only a single flame retardant is added, the flame retardant performance of the modified floating bead/graphene oxide flame retardant runway particle material prepared by the present invention is significantly improved, the oxygen index is 27.3% ~ 28.7.7%, which is significantly higher than 19.2 to 21.8% of the comparative examples, and the UL-94 rating is V-0, the tensile strength is also improved to a certain extent, so that the synergistic effect is significant when the modified floating bead and the graphene oxide are compounded.
Table 1 modified floating bead/graphene oxide flame retardant runway particle material data
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.

Claims (8)

1. The modified floating bead/graphene oxide flame-retardant runway particle material is characterized in that: the raw materials comprise the following components in parts by weight: 100 parts of rubber-plastic elastomer, 10-50 parts of compound flame retardant, 5-12 parts of naphthenic oil, 5-10 parts of superfine white carbon black, 3-5 parts of hydrated lime, 1-2 parts of zinc stearate, 100 parts of calcium carbonate and 130 parts of plastic toner; the mass ratio of the modified floating beads to the graphene oxide in the compound flame retardant is 1-5: 1.
2. A fire retardant runway particulate material as defined in claim 1 wherein: the rubber-plastic elastomer comprises: one or more of polystyrene-polyethylene-polybutylene-polystyrene block copolymer, polyethylene, polypropylene, ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, polyethylene grafted maleic anhydride and thermoplastic polyurethane.
3. A fire retardant runway particulate material as claimed in claim 2 wherein: the polystyrene-polyethylene-polybutylene-polystyrene block copolymer is linear high molecular weight SEBS, the grafting rate of polyethylene grafted maleic anhydride is 1.2%, and the content of a vinyl acetate matrix in the ethylene-vinyl acetate copolymer is 13-18 wt.%.
4. a fire retardant runway particulate material as defined in claim 1 wherein: the preparation method of the compound flame retardant comprises the following steps: dissolving 1 part of graphene oxide in deionized water, adding 0.5 part of sodium hexadecylbenzene sulfonate, carrying out ultrasonic oscillation for 30min, then adding 1-5 parts of modified floating beads, stirring for 1h, washing, and drying at 60 ℃.
5. A fire retardant runway particulate material as claimed in claim 4 wherein: the graphene oxide is prepared by a Hummers method.
6. A fire retardant runway particulate material as claimed in claim 4 wherein: the preparation method of the modified floating bead comprises the following steps:
1) Dispersing floating beads in HNO with a concentration of 20wt.%3Performing ultrasonic treatment for 1h in the solution, washing with absolute ethyl alcohol for several times, and drying at 70 ℃;
2) uniformly mixing absolute ethyl alcohol and deionized water in a volume ratio of 9:1, adding KH550, stirring at room temperature for 1h, adding the acidified floating beads obtained in the step 1), stirring at 80 ℃ for 6h, washing with absolute ethyl alcohol, and drying at 110 ℃.
7. A fire retardant runway particulate material as claimed in claim 6 wherein: the particle size of the floating beads is 100 meshes, and the mass ratio of KH550 to the acidified floating beads is 1: 1.
8. A method for preparing the modified floating bead/graphene oxide flame-retardant runway particle material of claim 1, which is characterized in that: the method comprises the following specific steps:
1) Adding rubber-plastic elastomer and naphthenic oil into a high-speed mixer, stirring at 50 ℃ and charging oil for 20-30min at the rotation speed of 200-300 r/min;
2) Adding the rest raw materials, and mixing for 20-30 min;
3) And transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 180-200 ℃, the rotating speed is 400-600r/min, and performing extrusion granulation to obtain the modified floating bead/graphene oxide flame-retardant runway granular material.
CN201910980115.4A 2019-10-15 2019-10-15 Modified floating bead/graphene oxide flame-retardant runway particle material Withdrawn CN110577708A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111303616A (en) * 2020-04-22 2020-06-19 福州大学 Graphene oxide grafted phosphorus-containing maleic acid flame-retardant auxiliary agent and preparation method and application thereof
CN111410787A (en) * 2020-04-21 2020-07-14 福州大学 Environment-friendly high-elasticity antistatic flame-retardant artificial turf filling particle and preparation method thereof
CN111749079A (en) * 2020-06-19 2020-10-09 武汉睿天新材料科技有限公司 Wear-resistant plastic track and construction method thereof
CN114149679A (en) * 2021-12-17 2022-03-08 江苏双成建设科技有限公司 High-wear-resistance plastic track colloidal particle and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410787A (en) * 2020-04-21 2020-07-14 福州大学 Environment-friendly high-elasticity antistatic flame-retardant artificial turf filling particle and preparation method thereof
CN111410787B (en) * 2020-04-21 2022-06-24 福州大学 Environment-friendly high-elasticity antistatic flame-retardant artificial turf filling particle and preparation method thereof
CN111303616A (en) * 2020-04-22 2020-06-19 福州大学 Graphene oxide grafted phosphorus-containing maleic acid flame-retardant auxiliary agent and preparation method and application thereof
CN111303616B (en) * 2020-04-22 2021-06-22 福州大学 Graphene oxide grafted phosphorus-containing maleic acid flame-retardant auxiliary agent and preparation method and application thereof
CN111749079A (en) * 2020-06-19 2020-10-09 武汉睿天新材料科技有限公司 Wear-resistant plastic track and construction method thereof
CN114149679A (en) * 2021-12-17 2022-03-08 江苏双成建设科技有限公司 High-wear-resistance plastic track colloidal particle and preparation method thereof

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Application publication date: 20191217