CN111218068A - Formula and preparation process of graphene-containing high-wear-resistance rubber dam and gas shield dam - Google Patents
Formula and preparation process of graphene-containing high-wear-resistance rubber dam and gas shield dam Download PDFInfo
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 106
- 239000005060 rubber Substances 0.000 title claims abstract description 106
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000009472 formulation Methods 0.000 title claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 22
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims abstract description 20
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011787 zinc oxide Substances 0.000 claims abstract description 14
- 239000005662 Paraffin oil Substances 0.000 claims abstract description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 10
- 239000011593 sulfur Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 229920002943 EPDM rubber Polymers 0.000 claims description 68
- 238000002156 mixing Methods 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 22
- 239000006229 carbon black Substances 0.000 claims description 14
- 239000007822 coupling agent Substances 0.000 claims description 14
- 229940071182 stannate Drugs 0.000 claims description 14
- 125000005402 stannate group Chemical group 0.000 claims description 14
- 230000003712 anti-aging effect Effects 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000003490 calendering Methods 0.000 claims description 12
- 238000004073 vulcanization Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 238000005242 forging Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 238000007670 refining Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000006235 reinforcing carbon black Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
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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 relates to a formula and a preparation process of a graphene-containing high-wear-resistance rubber dam and an air shield dam, and belongs to the technical field of production of rubber retaining dams. The feed comprises the following raw materials in parts by weight: 100 parts of rubber, 4-8 parts of zinc oxide, 20-35 parts of paraffin oil, 15-30 parts of reinforcing agent, 6-8 parts of dicumyl peroxide, 0.5-1.5 parts of sulfur and 2-4 parts of triallyl isocyanurate. The rubber dam and the air shield dam processed by the formula have strong wear resistance and good physical and mechanical properties.
Description
Technical Field
The invention relates to a formula and a preparation process of a graphene-containing high-wear-resistance rubber dam and an air shield dam, and belongs to the technical field of production of rubber retaining dams.
Background
The rubber dam and the rubber air shield dam are two water retaining products commonly used in the water conservancy field, and the existing rubber dam and the existing rubber air shield dam mainly have the following defects:
1. the rubber dam is very easily worn and scratched by gravels, branches and other floating objects in the water during use, the covering rubber on the surface of the rubber dam is directly exposed in a river channel, the requirement on the wear resistance of the covering rubber on the surface of the rubber dam is high, and most of the rubber dams have the situation that the outer covering layer is worn or even skeleton fibers are exposed under the long-term river scouring and the long-term wear of the floating objects and the gravels, so that the strength of a rubber dam bag is influenced, and the service life of the dam bag is shortened.
2. Although the outer part of the rubber air shield dam is protected by the shield plate, under the condition that backwater exists at the downstream or bidirectional water retaining is needed, silt is easy to accumulate at the bottom of an air bag of the air shield dam, and the silt at the bottom rubs against the air bag in the long-term use process of the air shield dam, so that the abrasion of covering rubber outside the air bag is caused, the safety coefficient of the air shield dam is reduced, and the service life of the air shield dam is prolonged.
The existing formula design mainly adopts ethylene propylene diene monomer rubber as a main rubber seed, improves the wear resistance by adding the amount of reinforcing agent carbon black and changing the type of the reinforcing agent carbon black, but the carbon black filling amount in the rubber is limited, and the ultra-high wear-resistant reinforcing carbon black has poor dispersibility in the ethylene propylene diene monomer rubber, so that the high wear-resistant requirement of rubber dam and gas shield dam covering rubber can not be met by the above mode.
Therefore, it is highly desirable to invent a formulation of a highly wear-resistant rubber dam and an air shield dam containing graphene and a preparation process thereof, which can solve the above technical problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a high-wear-resistance rubber dam and air shield dam formula.
The formula of the graphene-containing high-wear-resistance rubber dam and the air shield dam is characterized by comprising the following raw materials in parts by weight:
100 parts of rubber, 4-8 parts of zinc oxide, 20-35 parts of paraffin oil, 15-30 parts of reinforcing agent, 6-8 parts of dicumyl peroxide (DCP), 0.5-1.5 parts of sulfur (S) and 2-4 parts of triallyl isocyanurate (TAIC-70);
preferably, the raw materials also comprise 2-3 parts of anti-aging agent, 4-8 parts of special tackifying resin for EPDM and 2-6 parts of stannate coupling agent (NW-2)
Preferably, the rubber is a mixture of graphene reinforced ethylene propylene diene monomer and ethylene propylene diene monomer, and the weight ratio of the two is 70:30-50: 50;
preferably, the graphene reinforced ethylene propylene diene monomer rubber is a graphene reinforced ethylene propylene diene monomer rubber which is produced by Ningbo Examel New Material Co., Ltd and is of a brand number of GEPDM;
preferably, the ethylene propylene diene monomer is ethylene propylene diene monomer with the trade name of EPDM512F manufactured by Korean SK company;
preferably, the special EPDM tackifying resin is special EPDM tackifying resin with the trademark of JP769, which is produced by Shanghai Junpu chemical company Limited;
preferably, the anti-aging agent is a mixture of 4010Na (N-isopropyl-N' -phenyl-p-phenylenediamine) and NBC (N, N-di-N-butyl nickel dithiocarbamate).
Preferably, the stannate coupling agent is a stannate coupling agent manufactured by Weifang Honghua rubber and plastic filler Limited under the brand name NW-2;
preferably, the reinforcing agent is a mixture of N330 carbon black and N220 carbon black, and the weight ratio of the two is 1:1-2: 1.
A preparation process of a formula of a graphene-containing high-wear-resistance rubber dam and an air shield dam is characterized by comprising the following steps:
1) mixing thin tube
Thinly passing the mixture of the graphene reinforced ethylene propylene diene monomer and the ethylene propylene diene monomer in an open mill to obtain a uniform rubber mixture containing graphene;
preferably, the weight of the mixture of the graphene reinforced ethylene propylene diene monomer and the ethylene propylene diene monomer is 100 parts;
2) adding and banburying
①, adding the rubber mixture containing graphene and zinc oxide into an internal mixer, and mixing for 2-3 min;
secondly, opening a feeding port of the internal mixer, adding a reinforcing agent, and mixing for 1-2 min;
③, adding paraffin oil, and mixing for 2-3 min;
adding dicumyl peroxide (DCP), sulfur S and triallyl isocyanurate TAIC-70, mixing for 2-3min, and discharging after the current is stable and the top plug on the internal mixer floats normally;
preferably, the step ① further comprises 2-3 parts of an anti-aging agent, 4-8 parts of a special tackifying resin for EPDM, and 2-6 parts of a stannate coupling agent NW-2;
preferably, the zinc oxide is 4-8 parts, paraffin oil is 20-35 parts, reinforcing agent is 15-30 parts, dicumyl peroxide (DCP) is 6-8 parts, sulfur is 0.5-1.5 parts, and triallyl isocyanurate (TAIC-70) is 2-4 parts;
3. tumbling
Putting the mixed rubber material into an open mill for even turnover, and rolling down the rubber material after the surface of the rubber material has no rubber seam, the rubber material is continuous and the texture is even;
preferably, the turning temperature is 50-70 ℃,
4. calendering
Putting the turned and coiled rubber compound into a calender, and calendering to obtain a sheet;
5. vulcanization
Vulcanizing according to T90 (positive vulcanization time) measured by a vulcanizer to obtain a test piece with a thickness of 2mm +/-0.5 mm;
preferably, the vulcanization time is 30-60min,
6. detection of
And detecting physical and mechanical properties and wear resistance, wherein the wear detection mode is roller wear. Requiring an abrasion of less than 90 mm.
The formula of the graphene-containing high-wear-resistance rubber dam and the air shield dam has the following beneficial effects:
1. the graphene reinforced ethylene propylene diene monomer GEPDM is prepared by filling graphene into ethylene propylene diene monomer by adopting methods of mechanical blending, solution mixing and the like, the GEPDM has the performance of the ethylene propylene diene monomer, has high mechanical property of the graphene due to the filling of the graphene, and improves the wear resistance, meanwhile, the graphene is filled into the ethylene propylene diene monomer so that the dispersibility of the graphene in a formula is better, and the GEPDM is reinforced by a reinforcing agent so that the rubber dam and air shield dam covering rubber can meet the requirements of field use environments;
2. the graphene reinforced ethylene propylene diene monomer GEPDM is adopted, and the single-layer graphene is blended into the ethylene propylene diene monomer through methods such as mechanical blending or solution mixing, so that the aging resistance of ethylene propylene diene monomer is ensured, and the high-strength mechanical property of the graphene is also realized;
3. the graphene reinforced ethylene propylene diene monomer and the common ethylene propylene diene monomer are mixed in an open mill in advance, so that the mixing degree and compatibility between the graphene and the rubber are further enhanced, and the physical and mechanical properties of the formula are greatly improved;
4. the special tackifying resin for EPDM is adopted in the formula as a modified blend of alkylphenol formaldehyde resin, and the structure of the special tackifying resin exists in the particularity of co-crosslinking of a non-polar chemical bond and a polar chemical bond, so that the adhesive force of the ethylene propylene diene monomer and natural rubber or styrene butadiene rubber is improved to a great extent;
5. the stannate coupling agent in the formula is formed by directly performing chemical action on alkoxy and trace carboxyl or hydroxyl adsorbed on the surface of the filler to perform coupling, so that the dispersibility of the reinforcing agent carbon black in rubber is more uniform, the activity of the carbon black is enhanced, and the carbon black plays a better role.
Detailed Description
The following description of the present invention will be given to further explain the present invention.
Example 1
The formula of the graphene-containing high-wear-resistance rubber dam and air shield dam comprises the following raw materials in parts by weight: 70 parts of GEPDM, 512F 30 parts of EPDM, 6.5 parts of zinc oxide, 2 parts of an anti-aging agent, 6 parts of a tackifying resin special for EPDM, 27 parts of paraffin oil, 15 parts of a reinforcing agent N33015 parts of N22015 parts, 2.5 parts of a stannate coupling agent (NW-2), 6.5 parts of dicumyl peroxide (DCP), 1.2 parts of sulfur (S) and 3 parts of triallyl isocyanurate (TAIC-70).
EPDM5 is a graphene reinforced ethylene propylene diene monomer produced by Ningbo Examer New materials Co.Ltd;
EPDM512F is ethylene propylene diene monomer, manufactured by SK corporation of korea;
the special EPDM tackifying resin is special EPDM tackifying resin with the trademark of JP769 produced by Shanghai Junpu chemical company Limited;
the anti-aging agent is a mixture of 4010Na (N-isopropyl-N' -phenyl-p-phenylenediamine) and NBC (N, N-di-N-butyl nickel dithiocarbamate), and the two are mixed in any proportion.
NW-2 is a stannate coupling agent and is produced by Weifang torrent rubber and plastic filler Limited;
the preparation process of the formula of the graphene-containing high-wear-resistance rubber dam and the air shield dam comprises the following steps:
the method comprises the following steps: mixing rubber materials, namely mixing GEPDM with EPDM512F, adjusting the roll gap to 1-2mm in an open mill, and performing thin passing for 10min generally to obtain a uniform rubber mixture containing graphene;
step two: adding materials and banburying, namely adding a rubber mixture containing graphene, zinc oxide, an anti-aging agent, special tackifying resin for EPDM (ethylene-propylene-diene monomer), and NW-2 into a banbury mixer together, mixing for 3min, opening a feed inlet of the banbury mixer, adding a reinforcing agent, mixing for 2min, then adding paraffin oil, mixing for 3min, finally adding DCP, S and TAIC, mixing for 3min, and discharging materials after current is stable and a top plug on the banbury mixer floats normally;
step three: turning, namely putting the mixed rubber material into an open mill to turn, namely a rubber material hot-refining process, wherein the hot-refining temperature is 50-70 ℃, the rubber material is uniformly turned, no rubber seam exists on the surface, and the rubber material can be rolled and cut after being continuous and uniform in texture;
step four: calendering, namely putting the hot-milled and coiled rubber compound into a four-roll calender, calendering to obtain sheets, and marking the calendering direction and specification size;
step five: and (3) vulcanization: and vulcanizing the rubber sheet for 45min to obtain a test piece with the thickness of 2mm, and detecting the physical and mechanical properties, the wear resistance and the abrasion of the roller.
Example 2
The formula of the graphene-containing high-wear-resistance rubber dam and air shield dam comprises the following raw materials in parts by weight: 60 parts of GEPDM, 512F 40 parts of EPDM, 4 parts of zinc oxide, 2 parts of an anti-aging agent, 5 parts of a special tackifying resin for EPDM, 20 parts of paraffin oil, 20 parts of a reinforcing agent N33020 parts of N22010 parts, 3 parts of a stannate coupling agent (NW-2), 6 parts of dicumyl peroxide (DCP), 0.8 part of sulfur (S) and 2 parts of triallyl isocyanurate (TAIC-70).
The preparation process of the formula of the graphene-containing high-wear-resistance rubber dam and the air shield dam comprises the following steps:
the method comprises the following steps: mixing rubber materials, namely mixing GEPDM with EPDM512F, adjusting the roll gap to 1-2mm in an open mill, and performing thin passing for 10min generally to obtain a uniform rubber mixture containing graphene;
step two: adding materials and banburying, namely adding a rubber mixture containing graphene, zinc oxide, an anti-aging agent, special tackifying resin for EPDM (ethylene-propylene-diene monomer), and NW-2 into a banbury mixer together, mixing for 3min, opening a feed inlet of the banbury mixer, adding a reinforcing agent, mixing for 2min, then adding paraffin oil, mixing for 3min, finally adding DCP, S and TAIC, mixing for 3min, and discharging materials after current is stable and a top plug on the banbury mixer floats normally;
step three: and (3) hot refining, namely, the mixed rubber material is placed into an open mill to be turned and refined, namely, the hot refining process of the rubber material is carried out, the hot refining temperature is 50-70 ℃, the rubber material is uniformly turned and refined, no rubber seam exists on the surface, and the rubber material can be rolled and cut after being continuous and uniform in quality.
Step four: calendering, namely putting the hot-milled and coiled rubber compound into a four-roll calender, calendering to obtain sheets, and marking the calendering direction and specification size;
step five: and (3) vulcanization: the rubber sheet was vulcanized for 45min to obtain a test piece having a thickness of 2 mm.
Example 3
The formula of the graphene-containing high-wear-resistance rubber dam and the air shield dam comprises the following raw materials in parts by weight: 50 parts of GEPDM, 512F 50 parts of EPDM, 8 parts of zinc oxide, 2.5 parts of an anti-aging agent, 8 parts of a special tackifying resin for EPDM, 20 parts of paraffin oil, 18 parts of a reinforcing agent N33018 parts of N22012 parts, 5 parts of a stannate coupling agent (NW-2), 8 parts of dicumyl peroxide (DCP), 0.5 part of sulfur (S) and 2.5 parts of triallyl isocyanurate (TAIC-70).
The preparation process of the high-wear-resistance rubber dam and air shield dam formula containing graphene comprises the following steps:
the method comprises the following steps: mixing rubber materials, namely mixing GEPDM and EPDM512F, adjusting the roll gap to 1-2mm in an open mill, respectively adding the GEPDM and the EPDM512F for thin passing, wherein the thin passing time is generally 10min, and obtaining a uniform rubber mixture containing graphene;
step two: adding materials and banburying, namely adding a rubber mixture containing graphene, zinc oxide, an anti-aging agent, special tackifying resin for EPDM (ethylene-propylene-diene monomer), and NW-2 into a banbury mixer together, mixing for 3min, opening a feed inlet of the banbury mixer, adding a reinforcing agent, mixing for 2min, then adding paraffin oil, mixing for 3min, finally adding DCP, S and TAIC, mixing for 3min, and discharging materials after current is stable and a top plug on the banbury mixer floats normally;
step three: and (3) hot refining, namely, the mixed rubber material is placed into an open mill to be turned and refined, namely, the hot refining process of the rubber material is carried out, the hot refining temperature is 50-70 ℃, the rubber material is uniformly turned and refined, no rubber seam exists on the surface, and the rubber material can be rolled and cut after being continuous and uniform in quality.
Step four: calendering, namely putting the hot-milled and coiled rubber compound into a four-roll calender, calendering to obtain sheets, and marking the calendering direction and specification size;
step five: and (3) vulcanization: and vulcanizing the rubber sheet for 45min to obtain a test piece with the thickness of 2mm, and detecting the physical and mechanical properties, the wear resistance and the abrasion of the roller.
The formula of the graphene-containing high-wear-resistance rubber dam and the air shield dam has the following beneficial effects:
1. the graphene reinforced ethylene propylene diene monomer GEPDM is prepared by filling graphene into ethylene propylene diene monomer by adopting methods of mechanical blending, solution mixing and the like, the GEPDM has the performance of the ethylene propylene diene monomer, has high mechanical property of the graphene due to the filling of the graphene, and improves the wear resistance, meanwhile, the graphene is filled into the ethylene propylene diene monomer so that the dispersibility of the graphene in a formula is better, and the GEPDM is reinforced by a reinforcing agent so that the rubber dam and air shield dam covering rubber can meet the requirements of field use environments;
2. the graphene reinforced ethylene propylene diene monomer GEPDM is adopted, and the single-layer graphene is blended into the ethylene propylene diene monomer through methods such as mechanical blending or solution mixing, so that the aging resistance of ethylene propylene diene monomer is ensured, and the high-strength mechanical property of the graphene is also realized;
3. the graphene reinforced ethylene propylene diene monomer and the common ethylene propylene diene monomer are mixed in an open mill in advance, so that the mixing degree and compatibility between the graphene and the rubber are further enhanced, and the physical and mechanical properties of the formula are greatly improved;
4. the special tackifying resin for EPDM is adopted in the formula as a modified blend of alkylphenol formaldehyde resin, and the structure of the special tackifying resin exists in the particularity of co-crosslinking of a non-polar chemical bond and a polar chemical bond, so that the adhesive force of the ethylene propylene diene monomer and natural rubber or styrene butadiene rubber is improved to a great extent;
5. the stannate coupling agent in the formula is formed by directly performing chemical action on alkoxy and trace carboxyl or hydroxyl adsorbed on the surface of the filler to perform coupling, so that the dispersibility of the reinforcing agent carbon black in rubber is more uniform, the activity of the carbon black is enhanced, and the carbon black plays a better role.
Table 1: comparison table of performance indexes of examples 1-3 of the present invention and the prior art
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The formula of the graphene-containing high-wear-resistance rubber dam and the air shield dam is characterized by comprising the following raw materials in parts by weight:
100 parts of rubber, 4-8 parts of zinc oxide, 20-35 parts of paraffin oil, 15-30 parts of reinforcing agent, 6-8 parts of dicumyl peroxide, 0.5-1.5 parts of sulfur and 2-4 parts of triallyl isocyanurate.
2. The formula of the high-wear-resistance rubber dam and the air shield dam containing the graphene as claimed in claim 1, wherein the raw materials further comprise 2-3 parts of an anti-aging agent, 4-8 parts of a special tackifying resin for EPDM, and 2-6 parts of a stannate coupling agent.
3. The formulation of high wear-resistant rubber dam or air shield dam containing graphene according to claim 1 or 2, wherein the rubber is a mixture of graphene-reinforced ethylene propylene diene monomer and ethylene propylene diene monomer at a weight ratio of 70:30 to 50: 50.
4. The formulation of claim 1, wherein the graphene reinforced ethylene propylene diene monomer is a graphene reinforced ethylene propylene diene monomer available from Ningbo Examel New materials Co., Ltd under the trade designation GEPDM;
the EPDM is an EPDM with a trademark of EPDM512F manufactured by Korean SK company.
5. The formulation of claim 1, wherein the special tackifying resin for EPDM is special tackifying resin for EPDM with a trademark of JP769, manufactured by Shanghai Junpu chemical Co., Ltd;
the anti-aging agent is a mixture of N-isopropyl-N' -phenyl-p-phenylenediamine and N, N-di-N-butyl nickel dithiocarbamate;
the stannate coupling agent is a stannate coupling agent with a brand number of NW-2, which is produced by Weifang torrent rubber and plastic filler Limited;
the reinforcing agent is a mixture of N330 carbon black and N220 carbon black, and the weight of the reinforcing agent and the N220 carbon black is 1:1-2: 1.
6. A preparation process of a formula of a graphene-containing high-wear-resistance rubber dam and an air shield dam is characterized by comprising the following steps:
1) mixing thin tube
Thinly passing the mixture of the graphene reinforced ethylene propylene diene monomer and the ethylene propylene diene monomer in an open mill to obtain a uniform rubber mixture containing graphene;
2) adding and banburying
①, adding the rubber mixture containing graphene and zinc oxide into an internal mixer, and mixing for 2-3 min;
secondly, opening a feeding port of the internal mixer, adding a reinforcing agent, and mixing for 1-2 min;
③, adding paraffin oil, and mixing for 2-3 min;
adding dicumyl peroxide, sulfur and triallyl isocyanurate, mixing for 2-3min, discharging after the current is stable and the top plug on the internal mixer floats normally;
3) turning over
Putting the mixed rubber material into an open mill for even turnover, and rolling down the rubber material after the surface of the rubber material has no rubber seam, the rubber material is continuous and the texture is even;
4) rolling the mixture
Putting the turned and coiled rubber compound into a calender, and calendering to obtain a sheet;
5) and vulcanizing
The vulcanization was carried out according to T90 measured by a vulcanizer to obtain a test piece having a thickness of 2 mm. + -. 0.5 mm.
7. The preparation process of the formula of the graphene-containing high-wear-resistance rubber dam and the gas shield dam according to claim 6, wherein the weight of the mixture of the graphene-reinforced ethylene propylene diene monomer and the ethylene propylene diene monomer in the step 1) is 100 parts;
the raw materials added into the internal mixer in the step 2) and the step of charging and internal mixing also comprise 2-3 parts of an anti-aging agent, 4-8 parts of special tackifying resin for EPDM and 2-6 parts of a stannate coupling agent NW-2.
8. The preparation process of the formulation of the graphene-containing high-abrasion-resistance rubber dam and the gas shield dam according to claim 6, wherein the zinc oxide in the step 2) and the charging and banburying comprises 4-8 parts of zinc oxide, 20-35 parts of paraffin oil, 15-30 parts of reinforcing agent, 6-8 parts of dicumyl peroxide (DCP), 0.5-1.5 parts of sulfur and 2-4 parts of triallyl isocyanurate.
9. The preparation process of the high-wear-resistance rubber dam and air shield dam formula containing graphene according to claim 6, wherein the turning temperature in the step 3) and the turning is 50-70 ℃;
and 5) vulcanizing for 30-60min in vulcanizing.
10. The preparation process of the formula for the graphene-containing high-wear-resistance rubber dam and the gas shield dam according to claim 6, wherein the step 5) and the step 6) are carried out after vulcanization, namely, physical and mechanical property detection and wear resistance detection are carried out, wherein the wear detection mode is roller wear, and the wear is required to be carried out by thin-wall forging with the wear being less than 90 mm.
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