CN113637264A - EPR prefabricated motion field surface layer material and preparation method thereof - Google Patents
EPR prefabricated motion field surface layer material and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 79
- 239000002344 surface layer Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 58
- 239000013543 active substance Substances 0.000 claims abstract description 25
- 239000002086 nanomaterial Substances 0.000 claims abstract description 25
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 67
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 34
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 29
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 17
- 229910052717 sulfur Inorganic materials 0.000 claims description 17
- 239000011593 sulfur Substances 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 16
- 239000011787 zinc oxide Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- 239000003607 modifier Substances 0.000 claims description 14
- 229920001577 copolymer Polymers 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 7
- 238000004073 vulcanization Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 2
- 239000010425 asbestos Substances 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 239000003245 coal Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052895 riebeckite Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 230000000386 athletic effect Effects 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000004224 protection Effects 0.000 abstract description 3
- 230000006750 UV protection Effects 0.000 abstract description 2
- 231100000956 nontoxicity Toxicity 0.000 abstract description 2
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 description 12
- 239000002245 particle Substances 0.000 description 8
- 235000021355 Stearic acid Nutrition 0.000 description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 6
- 239000008117 stearic acid Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 2
- GNVMUORYQLCPJZ-UHFFFAOYSA-M Thiocarbamate Chemical compound NC([S-])=O GNVMUORYQLCPJZ-UHFFFAOYSA-M 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- GWOWVOYJLHSRJJ-UHFFFAOYSA-L cadmium stearate Chemical compound [Cd+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O GWOWVOYJLHSRJJ-UHFFFAOYSA-L 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- RVWOWEQKPMPWMQ-UHFFFAOYSA-N methyl 12-hydroxyoctadecanoate Chemical compound CCCCCCC(O)CCCCCCCCCCC(=O)OC RVWOWEQKPMPWMQ-UHFFFAOYSA-N 0.000 description 1
- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 description 1
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 description 1
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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
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of C08F255/06 high molecular compound compositions, and particularly relates to a sports ground surface layer material and a preparation method thereof. The EPR prefabricated sports surface layer material comprises the following preparation raw materials in parts by weight: 80-150 parts of rubber base material, 8-20 parts of white carbon black, 5-15 parts of rubber softening oil, 2-10 parts of auxiliary agent, 0.5-2 parts of active agent and 5-150 parts of nano material. The playground surface layer material prepared by the invention has the advantages of environmental protection, no toxicity, no harm, strong ultraviolet resistance, aging resistance, wear resistance, good elasticity, strong skid resistance, difficult edge warping, cracking and bulging, long service life and the like; the sports ground surface layer material prepared by the invention can be applied to places such as kindergartens, children amusement parks, sports equipment areas, basketball courts, badminton courts, table tennis courts, residential quarter activity places, park green paths, overpass passageways, gymnasiums, shooting grounds and the like, is safe and environment-friendly, has wide application value and great market value and economic benefit.
Description
Technical Field
The invention belongs to the technical field of C08F255/06 high molecular compound compositions, and particularly relates to an EPR prefabricated motion field surface layer material and a preparation method thereof.
Background
The playground is a product which people at all ages can contact, the playground is small enough to be the ground in amusement parks in childhood, and the playground is large enough to be the ground in parks and the like and can contact with the playground surface layer material, so the material has relatively high value and significance. In order to further raise the environmental and safety issues of materials, many researchers have made extensive attempts to develop and optimize materials at the present stage.
The optimization of the sports ground surface layer material can not only solve the problems of poor environmental protection performance, easy aging, bulging, edge curling and the like existing in the current stage, but also improve the external ultraviolet capability and the non-toxic and harmless effect to the human body, and improve the safety of users in all ages when in use.
Disclosure of Invention
In order to solve the technical problems, the first aspect of the invention provides an EPR prefabricated sports surface layer material, which comprises the following raw materials in parts by weight: 80-150 parts of rubber base material, 8-20 parts of white carbon black, 5-15 parts of rubber softening oil, 2-10 parts of auxiliary agent, 0.5-2 parts of active agent and 5-150 parts of nano material.
In order to improve the oxidation resistance and the erosion resistance of the sports ground surface layer material and ensure that the rubber substrate is an olefin copolymer and the service life of the rubber substrate is prolonged when the rubber substrate is used in a sports ground.
Further preferably, the rubber substrate is at least one selected from the group consisting of an ethylene-propylene copolymer, an ethylene-propylene-nonconjugated diene copolymer, and an ethylene-propylene-conjugated diene copolymer. Preferably, the rubber substrate is an ethylene-propylene-non-conjugated diene copolymer.
"EPR" in "EPR preformed sports surface layer material" herein refers to the first two letters in the rubber substrate "EPDM" plus the "R" component which is indicative of a nanomaterial in the field of molecular materials.
In some preferred embodiments, the rubber softening oil is a naphthenic oil.
In some preferred embodiments, the active agent is stearic acid.
In some preferred embodiments, the auxiliary agents include at least: accelerators and modifiers.
In the present application, the accelerators are all commonly used in the art, and thiazole accelerators, sulfenamide accelerators and thiocarbamate accelerators can be selected. As an example, the thiazole accelerator may be one selected from 2-mercaptobenzothiazole and dibenzothiazyl disulfide; the sulfenamide accelerator can be selected from N-tert-butyl-2-benzothiazole sulfenamide, N-cyclohexyl-2-benzothiazole sulfenamide; the thiocarbamate accelerators may be selected from zinc diethyldithiocarbamate, zinc dimethyldithiocarbamate; preferably, the accelerator is zinc dimethyldithiocarbamate.
In order to further enhance the toughness and tensile property of the EPR prefabricated sports surface layer material, a corresponding modifier needs to be added to improve the rubber property in the experimental process. In some preferred embodiments, the modifier is selected from at least one of hydroxyethyl acrylate, calcium stearate, methyl 12-hydroxystearate, zinc stearate, and cadmium stearate.
In some preferred embodiments, the nano material is at least one selected from nano zinc oxide, nano calcium carbonate, nano silica, nano barium sulfate, diatomite, asbestos powder, talcum powder, pottery clay and coal powder.
Further preferably, the nano material is nano zinc oxide and nano calcium carbonate.
In some preferred embodiments, the nano calcium carbonate has a particle size of 5 to 500 nm.
More preferably, the particle size of the nano calcium carbonate is 5-100 nm.
More preferably, the nano calcium carbonate has an average particle size of 80 nm.
In some preferred embodiments, the weight ratio of the nano zinc oxide to the nano calcium carbonate is 1: (20-30).
Further preferably, the weight ratio of the nano zinc oxide to the nano calcium carbonate is 1: 24.
nanometer calcium carbonate, type 904, was purchased from Fujian hongfeng nanometer technologies, Inc.
In the experimental process, the applicant finds that the addition of the nano calcium carbonate can greatly reduce the use of the rubber base material, and can change the mechanical property and the heat resistance of the prepared material, in the system, the compound use of the nano calcium carbonate and the nano zinc oxide can ensure that the prepared material has better mechanical property, can also ensure that the prepared material has better aging resistance and other properties when being used as a playground surface layer material, and can ensure that the prepared material reflects ultraviolet light within the range of 200-450 nm, and the applicant speculates that the possible reason of the phenomenon is that: the nano calcium carbonate can be well dispersed in the rubber base material due to higher surface activity, and meanwhile, the nano zinc oxide can form micro-crosslinking interaction with the surface of the nano calcium carbonate, so that the dispersion effect of the nano calcium carbonate in a system is enhanced.
In some preferred embodiments, the nano calcium carbonate is present in an amount of 50 to 150 wt% based on the weight of the rubber substrate.
More preferably, the weight of the nano calcium carbonate is 120 wt% of the weight of the rubber substrate.
The addition of the nano calcium carbonate can improve the performance of the prepared material, but in the system, the compatibility of the nano calcium carbonate in the system can be greatly influenced if the addition amount of the nano calcium carbonate is too much, the stability of the system is influenced, the mechanical property can be greatly reduced, and the construction is difficult.
In some preferred embodiments, the weight ratio of active agent to enhancer is 1: (1-3).
Further preferably, the weight ratio of the active agent to the accelerator is 1: 2.5.
in some preferred embodiments, the preparation feedstock further comprises sulfur.
In some preferred embodiments, the sulfur is 0.5 to 5 parts by weight, preferably 1 to 3 parts by weight.
In some preferred embodiments, the preparation raw materials comprise, by weight: 80-150 parts of rubber base material, 8-20 parts of white carbon black, 5-15 parts of rubber softening oil, 2-10 parts of auxiliary agent, 0.5-2 parts of active agent, 5-150 parts of nano material and 1-5 parts of sulfur.
The second aspect of the invention provides a method for preparing an EPR prefabricated sports surface layer material, which comprises the following steps:
s1: blending the rubber base material and the rubber softening oil, and extruding the mixture by a double-screw extruder to obtain a mixture;
s2: and (4) adding sulfur, an active agent, an auxiliary agent and a nano material into the mixture obtained in the step (S1), blending and stirring, and performing vulcanization treatment to obtain the sports ground surface layer material.
Has the advantages that: the sports ground surface layer material provided by the invention has the following advantages:
1. the EPR prefabricated sports surface layer material prepared by the method has the advantages of environmental protection, no toxicity, no harm, strong ultraviolet resistance, aging resistance, wear resistance, good elasticity, strong skid resistance, difficult edge warping, cracking and bulging, long service life and the like;
2. the EPR prefabricated sports field surface layer material prepared by the method can be applied to places such as kindergartens, amusement parks for children, sports equipment areas for health, basketball courts, badminton courts, table tennis courts, residential community activity places, green parks, overpass aisles, gymnasiums, shooting grounds and the like, is safe and environment-friendly, has wide application value, and has great market value and economic benefit;
3. the EPR prefabricated playground surface layer material prepared by the method has the advantages of good stain resistance, convenience in cleaning and long service life.
Drawings
FIG. 1 is a schematic view of a surface layer prepared from the EPR prefabricated surface layer material prepared in example 1 of the present application.
Detailed Description
Examples
Example 1
The EPR prefabricated sports surface layer material comprises the following preparation raw materials in parts by weight: 100 parts of rubber base material, 10 parts of white carbon black, 10 parts of rubber softening oil, 7.5 parts of auxiliary agent, 1 part of active agent, 125 parts of nano material and 2 parts of sulfur.
The rubber substrate was an ethylene-propylene-non-conjugated diene copolymer, model 4520, available from dow chemical.
The rubber softening oil is naphthenic oil.
The auxiliary agent is an accelerant and a modifier.
The accelerator is zinc dimethyldithiocarbamate, CAS: 137-30-4, 2.5 parts by weight;
the modifier is zinc stearate;
the active agent is stearic acid;
the nano material is nano zinc oxide and nano calcium carbonate;
the weight ratio of the nano zinc oxide to the nano calcium carbonate is 1: 24;
the nano calcium carbonate has an average particle size of 80nm, model 904, and is available from Hongfeng nano technology ltd in Fujian province.
A method for preparing an EPR prefabricated motion field surface layer material comprises the following steps:
s1: blending the rubber base material and the rubber softening oil, and extruding the mixture by a double-screw extruder to obtain a mixture;
s2: and (4) adding sulfur, an active agent, an auxiliary agent and a nano material into the mixture obtained in the step (S1), blending and stirring, and performing vulcanization treatment to obtain the sports ground surface layer material.
The sports surface layer material prepared in the example 1 can be used for producing sports surface layers, and the specific product is shown in figure 1.
Example 2
The EPR prefabricated sports surface layer material comprises the following preparation raw materials in parts by weight: 100 parts of rubber base material, 10 parts of white carbon black, 10 parts of rubber softening oil, 7.5 parts of auxiliary agent, 1 part of active agent, 125 parts of nano material and 2 parts of sulfur.
The rubber substrate was an ethylene-propylene-non-conjugated diene copolymer, model 4520, available from dow chemical.
The rubber softening oil is naphthenic oil.
The auxiliary agent is an accelerant and a modifier.
The accelerator is zinc dimethyldithiocarbamate, CAS: 137-30-4, 5 parts by weight;
the modifier is zinc stearate;
the active agent is stearic acid;
the nano material is nano zinc oxide and nano calcium carbonate;
the weight ratio of the nano zinc oxide to the nano calcium carbonate is 1: 24;
the nano calcium carbonate has an average particle size of 80nm, model 904, and is available from Hongfeng nano technology ltd in Fujian province.
A method for preparing an EPR prefabricated motion field surface layer material comprises the following steps:
s1: blending the rubber base material and the rubber softening oil, and extruding the mixture by a double-screw extruder to obtain a mixture;
s2: and (4) adding sulfur, an active agent, an auxiliary agent and a nano material into the mixture obtained in the step (S1), blending and stirring, and performing vulcanization treatment to obtain the sports ground surface layer material.
Example 3
The EPR prefabricated sports surface layer material comprises the following preparation raw materials in parts by weight: 100 parts of rubber base material, 10 parts of white carbon black, 10 parts of rubber softening oil, 7.5 parts of auxiliary agent, 1 part of active agent, 125 parts of nano material and 2 parts of sulfur.
The rubber substrate was an ethylene-propylene-non-conjugated diene copolymer, model 4520, available from dow chemical.
The rubber softening oil is naphthenic oil.
The auxiliary agent is an accelerant and a modifier.
The accelerator is zinc dimethyldithiocarbamate, CAS: 137-30-4, 2.5 parts by weight;
the modifier is zinc stearate;
the active agent is stearic acid;
the nano material is nano calcium carbonate;
the nano calcium carbonate has an average particle size of 80nm, model 904, and is available from Hongfeng nano technology ltd in Fujian province.
A method for preparing an EPR prefabricated motion field surface layer material comprises the following steps:
s1: blending the rubber base material and the rubber softening oil, and extruding the mixture by a double-screw extruder to obtain a mixture;
s2: and (4) adding sulfur, an active agent, an auxiliary agent and a nano material into the mixture obtained in the step (S1), blending and stirring, and performing vulcanization treatment to obtain the sports ground surface layer material.
Example 4
The EPR prefabricated sports surface layer material comprises the following preparation raw materials in parts by weight: 100 parts of rubber base material, 10 parts of white carbon black, 10 parts of rubber softening oil, 7.5 parts of auxiliary agent, 1 part of active agent, 150 parts of nano material and 2 parts of sulfur.
The rubber substrate was an ethylene-propylene-non-conjugated diene copolymer, model 4520, available from dow chemical.
The rubber softening oil is naphthenic oil.
The auxiliary agent is an accelerant and a modifier.
The accelerator is zinc dimethyldithiocarbamate, CAS: 137-30-4, 2.5 parts by weight;
the modifier is zinc stearate;
the active agent is stearic acid;
the nano material is nano zinc oxide and nano calcium carbonate;
the weight ratio of the nano zinc oxide to the nano calcium carbonate is 1: 24;
the nano calcium carbonate has an average particle size of 80nm, model 904, and is available from Hongfeng nano technology ltd in Fujian province.
A method for preparing an EPR prefabricated motion field surface layer material comprises the following steps:
s1: blending the rubber base material and the rubber softening oil, and extruding the mixture by a double-screw extruder to obtain a mixture;
s2: and (4) adding sulfur, an active agent, an auxiliary agent and a nano material into the mixture obtained in the step (S1), blending and stirring, and performing vulcanization treatment to obtain the sports ground surface layer material.
Example 5
The EPR prefabricated sports surface layer material comprises the following preparation raw materials in parts by weight: 100 parts of rubber base material, 10 parts of white carbon black, 10 parts of rubber softening oil, 7.5 parts of auxiliary agent, 1 part of active agent, 125 parts of nano material and 2 parts of sulfur.
The rubber substrate was an ethylene-propylene-non-conjugated diene copolymer, model 4520, available from dow chemical.
The rubber softening oil is naphthenic oil.
The auxiliary agent is an accelerant and a modifier.
The accelerator is zinc dimethyldithiocarbamate, CAS: 137-30-4, 2.5 parts by weight;
the modifier is zinc stearate;
the active agent is stearic acid;
the nano material is nano zinc oxide and nano calcium carbonate;
the weight ratio of the nano zinc oxide to the nano calcium carbonate is 1: 24;
the average particle size of the nano calcium carbonate is 1250 meshes, and the model is CAZ-8022, which is purchased from Guangdong Hua calcium new material science and technology Co.
A method for preparing an EPR prefabricated motion field surface layer material comprises the following steps:
s1: blending the rubber base material and the rubber softening oil, and extruding the mixture by a double-screw extruder to obtain a mixture;
s2: and (4) adding sulfur, an active agent, an auxiliary agent and a nano material into the mixture obtained in the step (S1), blending and stirring, and performing vulcanization treatment to obtain the sports ground surface layer material.
Performance testing
1. The EPR prefabricated playground surface layer materials prepared in examples 1-5 were used for tensile property testing according to GB/T528-2009;
2. the EPR prefabricated playground surface layer materials prepared in the examples 1-5 are used for impact resistance tests, the test method refers to notched impact resistance tests, and the test method refers to GB/T1943-;
3. and (3) aging resistance testing: the materials prepared in the embodiment 1 and the embodiment 3 are used for an aging resistance test, and the test method refers to GB/T16585-1996, and judges whether phenomena such as discoloration, pulverization, cracking, edge curling and the like occur or not within 5000 hours, and if not, the result is Pass; if any, it is NO and the results are reported in the table below.
| Experiment of | Aging resistance |
| Example 1 | Pass |
| Example 3 | NO |
Claims (10)
1. The EPR prefabricated sports surface layer material is characterized by comprising the following preparation raw materials in parts by weight: 80-150 parts of rubber base material, 8-20 parts of white carbon black, 5-15 parts of rubber softening oil, 2-10 parts of auxiliary agent, 0.5-2 parts of active agent and 5-150 parts of nano material.
2. The EPR preformed athletic surface layer material of claim 1, wherein said rubber substrate is an olefin copolymer.
3. The EPR preformed motion field material according to claim 1 or 2, wherein said rubber substrate is selected from at least one of ethylene-propylene copolymer, ethylene-propylene-nonconjugated diene copolymer, and ethylene-propylene-conjugated diene copolymer.
4. The EPR preformed athletic surface material of claim 1, wherein said rubber softening oil is a naphthenic oil.
5. The EPR prefabricated sports surface layer material of claim 1, wherein said auxiliary agents comprise at least: accelerators and modifiers.
6. The EPR prefabricated sports surface layer material according to claim 1, wherein the nano-material is at least one selected from nano-zinc oxide, nano-calcium carbonate, nano-silica, nano-barium sulfate, diatomite, asbestos powder, talcum powder, pottery clay and coal powder.
7. The EPR preformed sports surface layer material according to claim 6, wherein the nano calcium carbonate is present in an amount of 50-150 wt% based on the weight of the rubber substrate.
8. The EPR preformed athletic surface layer material of claim 5, wherein the weight ratio of active agent to accelerant is 1: (1-3).
9. The EPR preformed athletic surface layer material of claim 1, wherein the manufacturing feedstock further comprises sulfur; the weight portion of the sulfur is 0.5-5, preferably 1-3.
10. A method of producing the EPR prefabricated sports surface layer material of claim 9, comprising the steps of:
s1: blending the rubber base material and the rubber softening oil, and extruding the mixture by a double-screw extruder to obtain a mixture;
s2: and (4) adding sulfur, an active agent, an auxiliary agent and a nano material into the mixture obtained in the step (S1), blending and stirring, and performing vulcanization treatment to obtain the sports ground surface layer material.
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