CN111363383B - Silicon dioxide coated zinc borate and graphene synergistic multifunctional additive and preparation method and application thereof - Google Patents
Silicon dioxide coated zinc borate and graphene synergistic multifunctional additive and preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/04—Compounds of zinc
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
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- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/46—Graphite
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
- C09C3/066—Treatment or coating resulting in a free metal containing surface-region
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
Abstract
The invention discloses a silica-coated zinc borate and graphene multifunctional additive, a preparation method thereof and application of the silica-coated zinc borate and graphene multifunctional additive in artificial turf filling particle materials. The multifunctional artificial turf filling particle material prepared by the invention has the advantages of scientific and reasonable formula, simple and practical process flow, safety, environmental protection, flame retardance, wear resistance, antibacterial property and the like, provides new ideas and exploration for developing novel multifunctional artificial turf filling particle materials in future, and has huge social and economic benefits in practical application.
Description
Technical Field
The invention belongs to the technical field of artificial turf filling materials, and particularly relates to a silica-coated zinc borate and graphene multifunctional additive, and a preparation method and application thereof.
Background
With the progress of society and the improvement of living standard, people have more and more sports demands, and various plastic runways, playgrounds and artificial lawns are largely built. In recent years, among these artificial sports systems, the market of artificial turf has been increasing at a rate of 20-25% every year, and its application has broken through the traditional stadium construction, and is applied to various leisure areas in large quantities, providing great convenience to people's lives. Compared with the traditional natural lawn, the lawn has the advantages of good elasticity, skid resistance, shock absorption, easy field nursing, bright color, beautiful and neat appearance and the like. However, the artificial turf filling particles belong to easily-abraded and combustible materials, and a large number of bacteria are easy to breed in the using process, so that the property and personal safety of people are greatly threatened, and therefore, the filling particles are inevitably subjected to functional modification in the aspects of flame retardance, wear resistance, bacteria resistance and the like.
The zinc borate is a low-melting-point glass body, and has a sealing effect on holes and cracks in the nascent carbon, so that the improvement of the flame retardant property is facilitated to a certain extent.
Silica can improve wear resistance and improve the smoothness of the material surface. The size of the nano silicon dioxide particles is dozens to 100nm, and the nano silicon dioxide particles are added into the polymer composite material, so that the nano silicon dioxide particles are favorable for drawing into wires. Meanwhile, the nano silicon dioxide can make the surface of the material more compact and finer, the friction coefficient is reduced, and the high strength of the nano particles greatly enhances the wear resistance of the material
Graphene is a two-dimensional crystal, and common graphite is formed by stacking planar carbon atoms which are orderly arranged in a honeycomb shape layer by layer, and the interlayer acting force of the graphite is weak, so that the graphite can be easily peeled off from each other to form a thin graphite sheet. When a graphite sheet is exfoliated into monolayers, such monolayers having only one carbon atom thick are graphene. The graphite of 1 mm contains 300 ten thousand layers of single-layer graphene, the smallest bacterium known today is 0.2 mm, about 600 times as much as graphene, and the bacterium can be killed by cutting the cell wall immediately before it moves on the sharp nanoscale two-dimensional material. Therefore, the graphene can be completely used as an antibacterial agent and applied to various fields.
Disclosure of Invention
The invention aims to provide a multifunctional additive of silicon dioxide coated zinc borate and graphene, a preparation method of the multifunctional additive and application of the multifunctional additive in artificial turf filling particle materials. According to the invention, the nano silicon dioxide is used for coating the zinc borate, so that the zinc borate has flame retardant and wear resistant functions, and then the prepared silicon dioxide coated zinc borate is compounded with the graphene, so that various functional additives with excellent performances are obtained. The artificial turf filling particle material prepared by the invention has good flame retardant effect, excellent wear resistance and antibacterial property, does not contain halogen raw materials, does not pollute the environment by generated gas, and has good processing performance and mechanical performance, so that the artificial turf filling particle material has wide application prospect and market demand.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the preparation method of the silica-coated zinc borate and graphene multifunctional additive comprises the following steps:
(1) preparation of zinc borate: dissolving 3.72g of boric acid in deionized water, adding 1.3g of zinc oxide, and adding 0.5ml of ammonia water while stirring; adding 1g of sodium dodecyl benzene sulfonate into the mixed solution, heating to 45 ℃, stirring in a water bath for 2 hours; finally, filtering and drying at 60 ℃ to obtain the zinc borate.
(2) Preparation of silica-coated zinc borate: adding 1mL of tetraethyl orthosilicate into 20mL of absolute ethanol to obtain a mixed solution A; adding 1.12g of the zinc borate prepared in the step (1) into 4mL of deionized water, and then adding 0.2mL of ammonia water to obtain a mixed solution B; and slowly adding the mixed solution B into the mixed solution A, continuously stirring for 4 hours, filtering, washing with absolute ethyl alcohol, and drying at 70 ℃ to obtain the silicon dioxide coated zinc borate.
(3) Preparing a silicon dioxide coated zinc borate synergistic graphene multifunctional additive: and (3) dispersing 10 parts of the silicon dioxide coated zinc borate prepared in the step (2) in deionized water, performing ultrasonic oscillation for 30min, then adding 1-3 parts of graphene, stirring for 1h, washing, and drying at 60 ℃ to obtain the silicon dioxide coated zinc borate synergistic graphene multifunctional auxiliary agent.
The application of the silica-coated zinc borate and graphene multifunctional additive in the artificial turf filling particle material comprises the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 5-15 parts of silica-coated zinc borate and graphene multifunctional additive, 10-15 parts of vermiculite powder, 1-2 parts of zinc stearate, 100 parts of ultrafine calcium carbonate and 130 parts of plastic toner. The rubber-plastic elastomer comprises: ethylene propylene diene monomer, ethylene-octene copolymer grafted maleic anhydride, polypropylene and one or more of ethylene-vinyl acetate copolymer. The content of a vinyl acetate matrix in the ethylene-vinyl acetate copolymer is 13-18wt.%, and the grafting rate of the ethylene-octene copolymer grafted with maleic anhydride is 1%.
The preparation method comprises the following specific steps:
1) adding various raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
2) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 500-600r/min, and extruding and granulating to obtain the multifunctional artificial turf filling granular material with the zinc borate coated by the silicon dioxide and the graphene.
Graphene is a two-dimensional layered novel carbon material, the thickness of single-layer graphene is only 0.35nm, the graphene is the thinnest two-dimensional material known in the world, and the graphene has abundant and peculiar physicochemical characteristics, such as high specific surface area, outstanding heat conduction, flame retardance and mechanical properties, extraordinary electron transfer performance and certain antibacterial activity, and can damage cell membranes of bacteria, cause the outflow of intracellular substances and kill the bacteria. Therefore, the graphene added into the composite material can be flame-retardant and antibacterial.
The zinc borate is a novel multifunctional environment-friendly inorganic flame retardant with excellent performance, has the characteristics of low water solubility, high thermal stability, small granularity, small specific gravity, good dispersibility and the like, and also has the effects of no toxicity, flame retardance, smoke suppression, carbon formation promotion, molten drop prevention, no generation of toxic gas at high temperature and the like. The nano silicon dioxide is non-toxic, tasteless, pollution-free and high-temperature resistant. Meanwhile, the chemical inertness and the special thixotropic property of the rubber obviously improve the wear resistance and the mechanical property of the rubber product. Mixing nano SiO2The particles added into the polymer can improve the thermal stability of the polymer, can obstruct the material from transferring heat with the outside, and inhibit or even prevent the volatile degradation product in the combustion process of the polymerThe escape of the substance also helps to form a more thermally stable char layer and residue. So that SiO is mixed with2Coating on the surface of zinc borate can well play the flame retardant effect of synergistic dehydration and carbon formation between silicon and boride.
The multifunctional additive is composed of graphene and silicon dioxide coated zinc borate. The graphene can play a role of an antibacterial agent, can also fully exert the flame retardant property of the graphene and the zinc borate, and meanwhile, the silicon dioxide can also increase the wear resistance and the mechanical property of the matrix material.
The invention has the beneficial effects that: the multifunctional artificial turf filling particle material prepared by the invention, which combines zinc borate coated by silicon dioxide and graphene, has the advantages of excellent wear resistance, good antibacterial property, good flame retardant effect, no halogen-containing raw material, no environmental pollution caused by gas generated by combustion, good processing performance and mechanical property, wide application prospect and huge market demand.
Drawings
FIG. 1 is an SEM image of zinc borate;
fig. 2 is an SEM image of silica-coated zinc borate.
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
The preparation method of the multifunctional additive with the cooperation of the silicon dioxide-coated zinc borate and the graphene comprises the following specific steps:
1) preparation of zinc borate: a) dissolving 3.72g of boric acid in deionized water, adding 1.3g of zinc oxide, and adding 0.5ml of ammonia water while stirring; b) adding 1g of sodium dodecyl benzene sulfonate into the mixed solution, heating to 45 ℃, stirring in a water bath for 2 hours; c) filtering and drying at 60 ℃ to obtain the prepared zinc borate.
2) Preparation of silica-coated zinc borate: a) adding 1mL of tetraethyl orthosilicate into 20mL of absolute ethanol; b) adding 1.12g of zinc borate into 4mL of deionized water, and then adding 0.2mL of ammonia water; slowly adding the mixed solution in the step b) into the mixed solution in the step a), continuously stirring for 4 hours, filtering, washing with absolute ethyl alcohol, and drying at 70 ℃ to obtain the silicon dioxide coated zinc borate.
3) Preparing a silicon dioxide coated zinc borate synergistic graphene multifunctional additive: dispersing 10 parts of silicon dioxide coated zinc borate in deionized water, carrying out ultrasonic oscillation for 30min, then adding 1 part of graphene, stirring for 1h, washing, and drying at 60 ℃ to obtain the silicon dioxide coated zinc borate synergistic graphene multifunctional auxiliary agent.
The application of the prepared multifunctional additive with the zinc borate coated by the silicon dioxide and the graphene cooperated in the artificial turf filling particle material is as follows:
(1) weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 5 parts of silica-coated zinc borate and graphene multifunctional additive, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner.
(2) Various weighed raw materials are added into a high-speed mixer and mixed for 20-30min at the rotating speed of 200-300 r/min.
(3) And transferring the mixed materials into a double-screw extruder, extruding and granulating at the temperature of 175-190 ℃ and the rotating speed of 600r/min in each zone to obtain the silica-coated zinc borate-graphene-cooperated multifunctional artificial turf filling particle material.
Example 2
The preparation method of the multifunctional additive with the cooperation of the silicon dioxide-coated zinc borate and the graphene comprises the following specific steps:
1) preparation of zinc borate: a) dissolving 3.72g of boric acid in deionized water, adding 1.3g of zinc oxide, and adding 0.5ml of ammonia water while stirring; b) adding 1g of sodium dodecyl benzene sulfonate into the mixed solution, heating to 45 ℃, stirring in a water bath for 2 hours; c) filtering and drying at 60 ℃ to obtain the prepared zinc borate.
2) Preparation of silica-coated zinc borate: a) adding 1mL of tetraethyl orthosilicate into 20mL of absolute ethanol; b) adding 1.12g of zinc borate into 4mL of deionized water, and then adding 0.2mL of ammonia water; slowly adding the mixed solution in the step b) into the mixed solution in the step a), continuously stirring for 4 hours, filtering, washing with absolute ethyl alcohol, and drying at 70 ℃ to obtain the silicon dioxide coated zinc borate.
3) Preparing a silicon dioxide coated zinc borate synergistic graphene multifunctional additive: dispersing 10 parts of silicon dioxide coated zinc borate in deionized water, carrying out ultrasonic oscillation for 30min, then adding 2 parts of graphene, stirring for 1h, washing, and drying at 60 ℃ to obtain the silicon dioxide coated zinc borate synergistic graphene multifunctional auxiliary agent.
The application of the prepared multifunctional additive with the zinc borate coated by the silicon dioxide and the graphene cooperated in the artificial turf filling particle material is as follows:
(1) weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 10 parts of multifunctional additive, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner according to parts by weight.
(2) Various weighed raw materials are added into a high-speed mixer and mixed for 20-30min at the rotating speed of 200-300 r/min.
(3) And transferring the mixed materials into a double-screw extruder, extruding and granulating at the temperature of 175-190 ℃ and the rotating speed of 600r/min in each zone to obtain the silica-coated zinc borate-graphene-cooperated multifunctional artificial turf filling particle material.
Example 3
The preparation method of the multifunctional additive with the cooperation of the silicon dioxide-coated zinc borate and the graphene comprises the following specific steps:
1) preparation of zinc borate: a) dissolving 3.72g of boric acid in deionized water, adding 1.3g of zinc oxide, and adding 0.5ml of ammonia water while stirring; b) adding 1g of sodium dodecyl benzene sulfonate into the mixed solution, heating to 45 ℃, stirring in a water bath for 2 hours; c) filtering and drying at 60 ℃ to obtain the prepared zinc borate.
2) Preparation of silica-coated zinc borate: a) adding 1mL of tetraethyl orthosilicate into 20mL of absolute ethanol; b) adding 1.12g of zinc borate into 4mL of deionized water, and then adding 0.2mL of ammonia water; slowly adding the mixed solution in the step b) into the mixed solution in the step a), continuously stirring for 4 hours, filtering, washing with absolute ethyl alcohol, and drying at 70 ℃ to obtain the silicon dioxide coated zinc borate.
3) Preparing a silicon dioxide coated zinc borate synergistic graphene multifunctional additive: dispersing 10 parts of silicon dioxide coated zinc borate in deionized water, carrying out ultrasonic oscillation for 30min, then adding 3 parts of graphene, stirring for 1h, washing, and drying at 60 ℃ to obtain the silicon dioxide coated zinc borate synergistic graphene multifunctional auxiliary agent.
The application of the prepared multifunctional additive with the zinc borate coated by the silicon dioxide and the graphene cooperated in the artificial turf filling particle material is as follows:
(1) weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 15 parts of multifunctional additive, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner according to parts by weight.
(2) Adding various weighed raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min; .
(3) And transferring the mixed materials into a double-screw extruder, extruding and granulating at the temperature of 175-190 ℃ and the rotating speed of 600r/min in each zone to obtain the silica-coated zinc borate-graphene-cooperated multifunctional artificial turf filling particle material.
Comparative example 1
1) Weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner in parts by weight.
2) Adding various weighed raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
3) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the artificial turf filling particle material.
Comparative example 2
1) Weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 10 parts of graphene, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner according to parts by weight.
2) Adding various weighed raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
3) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the artificial turf filling particle material.
Comparative example 3
1) Weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 15 parts of graphene, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner according to parts by weight.
2) Adding various weighed raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
3) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the artificial turf filling particle material.
Comparative example 4
1) Weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 2 parts of graphene, 6 parts of zinc borate, 2 parts of nano silicon dioxide, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner.
2) Adding various weighed raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
3) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the artificial turf filling particle material.
Comparative example 5
1) Weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 3 parts of graphene, 9 parts of zinc borate, 3 parts of nano silicon dioxide, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner.
2) Adding various weighed raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
3) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the artificial turf filling particle material.
Comparative example 6
1) Weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 10 parts of zinc borate, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner according to parts by weight.
2) Adding various weighed raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
3) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the artificial turf filling particle material.
Comparative example 7
1) Weighing 60 parts of ethylene propylene diene monomer, 20 parts of ethylene octene copolymer grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of polypropylene, 15 parts of zinc borate, 10 parts of vermiculite powder, 2 parts of zinc stearate, 100 parts of superfine calcium carbonate and 0.5 part of plastic toner according to parts by weight.
2) Adding various weighed raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
3) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 600r/min, and extruding and granulating to obtain the artificial turf filling particle material.
Performance testing
Table 1 shows the data of each example and comparative example, and it can be seen from the table that comparative examples 2 and 3 with only graphene added only have improved antibacterial performance compared with comparative example 1 without addition of an auxiliary agent, which indicates that the addition of graphene can make the matrix have antibacterial performance. Compared with comparative example 1, comparative examples 6 and 7 only added with zinc borate show that the flame retardant effect of the zinc borate added into the system alone as a flame retardant is not obvious. Comparative examples 4 and 5 show that graphene, silicon dioxide and zinc borate are added into the system independently without treatment, the flame retardant effect is not improved obviously, and compared with the examples, the particle material prepared by the invention has the advantages that the flame retardant property, the wear resistance and the antibacterial property are obviously improved by combining the silicon dioxide coated zinc borate and the graphene. Therefore, the method has stronger application value in actual production.
TABLE 1 data relating to the examples and comparative examples
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 (5)
1. The silicon dioxide coated zinc borate synergistic graphene multifunctional additive is characterized in that: the preparation method specifically comprises the following steps:
preparation of zinc borate: dissolving boric acid in deionized water, adding zinc oxide, and adding ammonia water while stirring; then adding sodium dodecyl benzene sulfonate, heating to 45 ℃, and stirring in water bath for 2 hours; filtering and drying at 60 ℃ to obtain zinc borate;
preparation of silica-coated zinc borate: adding the zinc borate obtained in the step 1) into deionized water, adding ammonia water to obtain a mixed solution, adding the mixed solution into a mixed solution containing tetraethyl orthosilicate and absolute ethyl alcohol, continuously stirring for 4 hours, filtering, washing with the absolute ethyl alcohol, and drying at 70 ℃ to obtain silicon dioxide coated zinc borate;
preparing a silicon dioxide coated zinc borate synergistic graphene multifunctional additive: dispersing the silicon dioxide coated zinc borate prepared in the step 2) in deionized water, performing ultrasonic oscillation for 30min, then adding graphene, stirring for 1h, washing, and drying at 60 ℃ to obtain the silicon dioxide coated zinc borate synergistic graphene multifunctional auxiliary agent.
2. The use of the silica-coated zinc borate in combination with a graphene multifunctional additive according to claim 1, wherein: applying the silicon dioxide-coated zinc borate and graphene multifunctional additive to the artificial turf filling particle material; the artificial turf filling particle material comprises the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 5-15 parts of silica-coated zinc borate and graphene multifunctional additive, 10-15 parts of vermiculite powder, 1-2 parts of zinc stearate, 100 parts of ultrafine calcium carbonate and 130 parts of plastic toner.
3. Use according to claim 2, characterized in that: the rubber-plastic elastomer is one or a mixture of more of ethylene propylene diene monomer, ethylene-octene copolymer grafted maleic anhydride, polypropylene and ethylene-vinyl acetate copolymer.
4. Use according to claim 3, characterized in that: the content of a vinyl acetate matrix in the ethylene-vinyl acetate copolymer is 13-18wt.%, and the grafting rate of maleic anhydride in the ethylene-octene copolymer grafted maleic anhydride is 1%.
5. Use according to claim 2, characterized in that: the preparation steps of the artificial turf filling particle material are as follows:
(1) adding various raw materials into a high-speed mixer, and mixing for 20-30min at the rotating speed of 200-300 r/min;
(2) and transferring the mixed materials into a double-screw extruder, wherein the temperature of each zone is 175-190 ℃, the rotating speed is 500-600r/min, and extruding and granulating to obtain the multifunctional artificial turf filling granular material with the zinc borate coated by the silicon dioxide and the graphene.
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| CN113583344B (en) * | 2021-08-10 | 2022-12-23 | 仙桃市鼎业劳保用品有限公司 | Antibacterial wear-resistant polypropylene plastic and application thereof |
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