CN115651321A - High-insulation boiling-resistant ethylene propylene diene monomer rubber mixture and preparation method thereof - Google Patents
High-insulation boiling-resistant ethylene propylene diene monomer rubber mixture and preparation method thereof Download PDFInfo
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- CN115651321A CN115651321A CN202211206067.1A CN202211206067A CN115651321A CN 115651321 A CN115651321 A CN 115651321A CN 202211206067 A CN202211206067 A CN 202211206067A CN 115651321 A CN115651321 A CN 115651321A
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- ethylene propylene
- diene monomer
- propylene diene
- talcum powder
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- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 66
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- 238000009835 boiling Methods 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical class 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 abstract description 72
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 52
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 31
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000005662 Paraffin oil Substances 0.000 claims abstract description 26
- 239000006229 carbon black Substances 0.000 claims abstract description 26
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 26
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 26
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 26
- 239000011787 zinc oxide Substances 0.000 claims abstract description 26
- 229920001971 elastomer Polymers 0.000 claims abstract description 23
- 239000003822 epoxy resin Substances 0.000 claims abstract description 23
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 23
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000003607 modifier Substances 0.000 claims description 35
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 14
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 238000004073 vulcanization Methods 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 2
- 239000002530 phenolic antioxidant Substances 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 230000004913 activation Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 238000005303 weighing Methods 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- -1 ethylene, propylene Chemical group 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of rubber materials, and discloses a high-insulation boiling-resistant ethylene propylene diene monomer mixture and a preparation method thereof in order to solve the problem of poor insulation performance of the conventional ethylene propylene diene monomer mixture, wherein the ethylene propylene diene monomer mixture comprises the following raw materials in parts by weight: ethylene propylene diene monomer, epoxy resin, nano silicon dioxide, nano zinc oxide, carbon black, modified talcum powder, paraffin oil, graphene, an accelerant, an antioxidant and a defoaming agent. According to the invention, the nano silicon dioxide, the nano zinc oxide, the carbon black, the modified talcum powder, the paraffin oil and the graphene are added into the raw materials of the ethylene propylene diene monomer rubber mixture, the prepared ethylene propylene diene monomer rubber mixture is excellent in insulating property and boiling resistance, the modified talcum powder is used for improving the activation rate of the surface of the talcum powder and increasing the surface modification strength of the talcum powder, and the ethylene propylene diene monomer rubber mixture is excellent in mechanical property when being applied to the preparation of the ethylene propylene diene monomer rubber mixture.
Description
Technical Field
The invention relates to the technical field of rubber materials, in particular to a high-insulation boiling-resistant ethylene propylene diene monomer rubber mixture and a preparation method thereof.
Background
At present, the conductive rubber mainly takes silicon rubber as a matrix, conductive particles are uniformly distributed in the silicon rubber, and the conductive particles are contacted through pressure, so that good conductive performance is achieved. Ethylene-propylene-diene monomer (EPDM) is a terpolymer prepared by using ethylene, propylene and non-conjugated diene as main monomers and performing a polymerization process, wherein a molecular main chain of the terpolymer consists of saturated hydrocarbon with stable chemical properties, and only a small amount of unsaturated double bonds are contained in a side chain. Compared with silicon rubber, the EPDM-based rubber has the characteristics of good air tightness, high alkali resistance, high strength and relatively low cost, but the existing EPDM rubber composition has the problem of poor insulating property.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a high-insulation boiling-resistant ethylene propylene diene monomer mixture and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-insulation boiling-resistant ethylene propylene diene monomer mixture comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 10-15 parts of epoxy resin, 1-3 parts of nano silicon dioxide, 3-5 parts of nano zinc oxide, 12-24 parts of carbon black, 4-6 parts of modified talcum powder, 30-50 parts of paraffin oil, 1-5 parts of graphene, 1-2 parts of accelerator, 0.5-1 part of antioxidant and 10-16 parts of defoaming agent.
Preferably, the feed comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 10 parts of epoxy resin, 1 part of nano silicon dioxide, 3 parts of nano zinc oxide, 12 parts of carbon black, 4 parts of modified talcum powder, 30 parts of paraffin oil, 1 part of graphene, 1 part of accelerant, 0.5 part of antioxidant and 10 parts of defoaming agent.
Preferably, the feed comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 15 parts of epoxy resin, 3 parts of nano silicon dioxide, 5 parts of nano zinc oxide, 24 parts of carbon black, 6 parts of modified talcum powder, 50 parts of paraffin oil, 5 parts of graphene, 2 parts of accelerant, 1 part of antioxidant and 16 parts of defoaming agent.
Preferably, the feed comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 12.5 parts of epoxy resin, 2 parts of nano silicon dioxide, 4 parts of nano zinc oxide, 18 parts of carbon black, 5 parts of modified talcum powder, 40 parts of paraffin oil, 3 parts of graphene, 1.5 parts of accelerator, 0.75 part of antioxidant and 13 parts of defoaming agent.
Preferably, the feed comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 12-13 parts of epoxy resin, 1.8-2.2 parts of nano silicon dioxide, 3.8-4.2 parts of nano zinc oxide, 17-19 parts of carbon black, 4.8-5.2 parts of modified talcum powder, 38-42 parts of paraffin oil, 2-4 parts of graphene, 1.4-1.6 parts of accelerator, 0.7-0.8 part of antioxidant and 12-14 parts of defoaming agent.
Preferably, the preparation method of the modified talcum powder comprises the following steps: ethanol and a aluminosilicate coupling agent were mixed in a ratio of 1: (0.4-0.8) preparing a modifier; drying the flaky talcum powder and then putting the dried flaky talcum powder into a mixing barrel; dropping modifier into talcum powder three times at a low speed of 750-780r/min in a mixing barrel, wherein the dropping amount of the modifier is 0.6-1.2% of the weight of the talcum powder in the mixing barrel, the dropping amounts of the modifier three times are respectively 55%, 30% and 15%, and the interval time of each dropping operation is 3-6min; and after the modifier is dripped, adjusting the rotating speed of a mixing barrel to 1600-1800r/min, and reacting for 30min to obtain the modified talcum powder.
Preferably, the accelerator comprises one or more combinations of accelerator IS-60, accelerator TBzTD-70, accelerator MBT-80 and accelerator DM.
Preferably, the antioxidant comprises one or more of phenolic antioxidant, phosphite antioxidant, sulfurous antioxidant and amine antioxidant.
The preparation method of the high-insulation boiling-resistant ethylene propylene diene monomer mixture comprises the following steps:
adding ethylene propylene diene monomer, epoxy resin, nano silicon dioxide and nano zinc oxide into an internal mixer for pressure mixing;
when the temperature reaches 30-35 ℃, adding the modified talcum powder, the carbon black, the graphene and the paraffin oil for pressurizing and mixing;
adding antioxidant, defoaming agent and accelerator to carry out pressure mixing when the temperature reaches 80-85 ℃; when the temperature reaches 90-95 ℃, discharging the mixed rubber material to an open mill for rubber returning and mixing, and after sheet discharging, carrying out vulcanization treatment to obtain the ethylene propylene diene monomer rubber mixture.
According to the invention, the nano silicon dioxide, the nano zinc oxide, the carbon black, the modified talcum powder, the paraffin oil and the graphene are added into the raw materials of the ethylene propylene diene monomer rubber mixture, the prepared ethylene propylene diene monomer rubber mixture has an excellent insulation effect and is resistant to water boiling, the added modified talcum powder is used as a filler, the activation rate of the surface of the talcum powder is improved, the surface modification strength of the talcum powder is increased, and the ethylene propylene diene monomer rubber mixture is applied to the preparation of the ethylene propylene diene monomer rubber mixture, and the prepared ethylene propylene diene monomer rubber mixture has excellent mechanical properties.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1
Ethanol and a coupling agent of aluminosilicate are mixed according to a ratio of 1:0.4, mixing to prepare a modifier; drying the flaky talcum powder and then putting the dried flaky talcum powder into a mixing barrel; dropping a modifier into the talcum powder for three times at a low speed of 750r/min in the mixing barrel, wherein the dropping amount of the modifier is 0.6 percent of the mass of the talcum powder in the mixing barrel, the dropping amounts of the modifier for three times are respectively 55 percent, 30 percent and 15 percent, and the interval time of each dropping operation is 3min; after finishing the dropping of the modifier, adjusting the rotating speed of a mixing barrel to 1600r/min, and reacting for 30min to obtain modified talcum powder;
weighing 100 g of ethylene propylene diene monomer, 10 g of epoxy resin, 1 g of nano silicon dioxide, 3 g of nano zinc oxide, 12 g of carbon black, 4 g of modified talcum powder, 30 g of paraffin oil, 1 g of graphene, 601 g of accelerant IS-601, 0.5 g of antioxidant and 10 g of defoaming agent; adding ethylene propylene diene monomer, epoxy resin, nano silicon dioxide and nano zinc oxide into an internal mixer for pressure mixing; adding modified talcum powder, carbon black, graphene and paraffin oil when the temperature reaches 35 ℃ and carrying out pressurization mixing; adding antioxidant, defoaming agent and IS-60 as accelerator when the temperature reaches 85 deg.C, and pressurizing and mixing; and when the temperature reaches 95 ℃, discharging the mixed rubber material to an open mill, returning the rubber material for mixing, discharging the rubber material, and vulcanizing to obtain the ethylene propylene diene monomer rubber mixture.
Example 2
Ethanol and a aluminosilicate coupling agent were mixed in a ratio of 1:0.4, mixing to prepare a modifier; drying the flaky talcum powder and then putting the dried flaky talcum powder into a mixing barrel; dropping a modifier into the talcum powder for three times at a low speed of 750r/min in the mixing barrel, wherein the dropping amount of the modifier is 0.6 percent of the mass of the talcum powder in the mixing barrel, the dropping amounts of the modifier for three times are respectively 55 percent, 30 percent and 15 percent, and the interval time of each dropping operation is 3min; after finishing the dropping of the modifier, adjusting the rotating speed of a mixing barrel to 1600r/min, and reacting for 30min to obtain modified talcum powder;
weighing 100 g of ethylene propylene diene monomer, 15 g of epoxy resin, 3 g of nano silicon dioxide, 5 g of nano zinc oxide, 24 g of carbon black, 6 g of modified talcum powder, 50 g of paraffin oil, 5 g of graphene, 602 g of accelerant IS-602, 1 g of antioxidant and 16 g of defoaming agent; adding ethylene propylene diene monomer, epoxy resin, nano silicon dioxide and nano zinc oxide into an internal mixer for pressure mixing; when the temperature reaches 30 ℃, adding modified talcum powder, carbon black, graphene and paraffin oil for pressurizing and mixing; when the temperature reaches 80 ℃, adding an antioxidant, a defoaming agent and an accelerator IS-60 for pressurizing and mixing; and when the temperature reaches 90 ℃, discharging the mixed rubber material to an open mill, returning the rubber material for mixing, discharging the rubber material, and vulcanizing to obtain the ethylene propylene diene monomer rubber mixture.
Example 3
Ethanol and a aluminosilicate coupling agent were mixed in a ratio of 1:0.8 of the mixture to prepare a modifier; drying the flaky talcum powder and then putting the dried flaky talcum powder into a mixing barrel; dropping a modifier into the talcum powder for three times at a low speed of 780r/min in the mixing barrel, wherein the dropping amount of the modifier is 1.2% of the mass of the talcum powder in the mixing barrel, the dropping amounts of the modifier for three times are respectively 55%, 30% and 15%, and the interval time of each dropping operation is 6min; after finishing the dropping of the modifier, adjusting the rotating speed of a mixing barrel to 1800r/min, and reacting for 30min to obtain modified talcum powder;
weighing 100 g of ethylene propylene diene monomer, 12.5 g of epoxy resin, 2 g of nano silicon dioxide, 4 g of nano zinc oxide, 18 g of carbon black, 5 g of modified talcum powder, 40 g of paraffin oil, 3 g of graphene, 601.5 g of accelerant IS-601, 0.75 g of antioxidant and 13 g of defoaming agent; adding ethylene propylene diene monomer, epoxy resin, nano silicon dioxide and nano zinc oxide into an internal mixer for pressure mixing; when the temperature reaches 32 ℃, adding modified talcum powder, carbon black, graphene and paraffin oil for pressurizing and mixing; adding antioxidant, defoaming agent and IS-60 accelerator when the temperature reaches 82 deg.C, and pressure mixing; when the temperature reaches 92 ℃, discharging the mixed rubber material to an open mill, returning the rubber material for mixing, discharging the rubber material, and performing vulcanization treatment to obtain the ethylene propylene diene monomer rubber mixture.
Example 4
Ethanol and a aluminosilicate coupling agent were mixed in a ratio of 1:0.4, mixing to prepare a modifier; drying the flaky talcum powder and then putting the dried flaky talcum powder into a mixing barrel; dripping a modifier into the talcum powder by three times at a low speed of 750r/min by the mixing barrel, wherein the dripping amount of the modifier is 0.6 percent of the mass of the talcum powder in the mixing barrel, the dripping amounts of the modifier for three times are respectively 55 percent, 30 percent and 15 percent, and the interval time of each dripping operation is 3min; after the modifier is added, the rotating speed of a mixing barrel is adjusted to 1600r/min, and the reaction is carried out for 30min, thus obtaining modified talcum powder;
weighing 100 g of ethylene propylene diene monomer, 12 g of epoxy resin, 1.8 g of nano silicon dioxide, 3.8 g of nano zinc oxide, 17 g of carbon black, 4.8 g of modified talcum powder, 38 g of paraffin oil, 2 g of graphene, 0.7 g of accelerator IS-60, 0.7 g of accelerator TBzTD-70, 0.7 g of antioxidant and 12 g of defoamer; adding ethylene propylene diene monomer, epoxy resin, nano silicon dioxide and nano zinc oxide into an internal mixer for pressure mixing; adding modified talcum powder, carbon black, graphene and paraffin oil when the temperature reaches 35 ℃ and carrying out pressurization mixing; when the temperature reaches 80 ℃, adding an antioxidant, a defoaming agent, an accelerator IS-60 and an accelerator TBzTD-70 for pressure mixing; and when the temperature reaches 95 ℃, discharging the mixed rubber material to an open mill, returning the rubber material for mixing, discharging the rubber material, and vulcanizing to obtain the ethylene propylene diene monomer rubber mixture.
Example 5
Ethanol and a aluminosilicate coupling agent were mixed in a ratio of 1:0.6, mixing to prepare a modifier; drying the flaky talcum powder and then putting the dried flaky talcum powder into a mixing barrel; dripping modifier into the talcum powder for three times at a low speed of 765r/min in the mixing barrel, wherein the dripping amount of the modifier is 0.9 percent of the mass of the talcum powder in the mixing barrel, the dripping amounts of the modifier for three times are respectively 55 percent, 30 percent and 15 percent, and the interval time of each dripping operation is 5min; after the modifier is dripped, the rotating speed of a mixing barrel is adjusted to 1700r/min, and the reaction is carried out for 30min, thus obtaining modified talcum powder;
weighing 100 g of ethylene propylene diene monomer, 13 g of epoxy resin, 2.2 g of nano silicon dioxide, 4.2 g of nano zinc oxide, 19 g of carbon black, 5.2 g of modified talcum powder, 42 g of paraffin oil, 4 g of graphene, 0.8 g of accelerator IS-60, 0.8 g of accelerator TBzTD-70, 0.8 g of antioxidant and 14 g of defoaming agent; adding ethylene propylene diene monomer, epoxy resin, nano silicon dioxide and nano zinc oxide into an internal mixer for pressure mixing; adding modified talcum powder, carbon black, graphene and paraffin oil for pressurizing and mixing when the temperature reaches 30 ℃; when the temperature reaches 80 ℃, adding an antioxidant, a defoaming agent, an accelerator IS-60 and an accelerator TBzTD-70 for pressure mixing; and when the temperature reaches 90 ℃, discharging the mixed rubber material to an open mill, returning the rubber material for mixing, discharging the rubber material, and vulcanizing to obtain the ethylene propylene diene monomer rubber mixture.
According to the invention, the nano silicon dioxide, the nano zinc oxide, the carbon black, the modified talcum powder, the paraffin oil and the graphene are added into the raw materials of the ethylene propylene diene monomer rubber mixture, the prepared ethylene propylene diene monomer rubber mixture has an excellent insulation effect and is resistant to water boiling, the added modified talcum powder is used as a filler, the activation rate of the surface of the talcum powder is improved, the surface modification strength of the talcum powder is increased, and the ethylene propylene diene monomer rubber mixture is applied to the preparation of the ethylene propylene diene monomer rubber mixture, and the prepared ethylene propylene diene monomer rubber mixture has excellent mechanical properties.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The high-insulation boiling-resistant ethylene propylene diene monomer mixture is characterized by comprising the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 10-15 parts of epoxy resin, 1-3 parts of nano silicon dioxide, 3-5 parts of nano zinc oxide, 12-24 parts of carbon black, 4-6 parts of modified talcum powder, 30-50 parts of paraffin oil, 1-5 parts of graphene, 1-2 parts of accelerator, 0.5-1 part of antioxidant and 10-16 parts of defoaming agent.
2. The high-insulation boiling-resistant ethylene propylene diene monomer mixture as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 10 parts of epoxy resin, 1 part of nano silicon dioxide, 3 parts of nano zinc oxide, 12 parts of carbon black, 4 parts of modified talcum powder, 30 parts of paraffin oil, 1 part of graphene, 1 part of accelerant, 0.5 part of antioxidant and 10 parts of defoaming agent.
3. The high-insulation boiling-resistant ethylene propylene diene monomer mixture as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 15 parts of epoxy resin, 3 parts of nano silicon dioxide, 5 parts of nano zinc oxide, 24 parts of carbon black, 6 parts of modified talcum powder, 50 parts of paraffin oil, 5 parts of graphene, 2 parts of accelerant, 1 part of antioxidant and 16 parts of defoaming agent.
4. The high-insulation boiling-resistant ethylene propylene diene monomer mixture as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 12.5 parts of epoxy resin, 2 parts of nano silicon dioxide, 4 parts of nano zinc oxide, 18 parts of carbon black, 5 parts of modified talcum powder, 40 parts of paraffin oil, 3 parts of graphene, 1.5 parts of accelerator, 0.75 part of antioxidant and 13 parts of defoaming agent.
5. The high-insulation boiling-resistant ethylene propylene diene monomer mixture as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 12-13 parts of epoxy resin, 1.8-2.2 parts of nano silicon dioxide, 3.8-4.2 parts of nano zinc oxide, 17-19 parts of carbon black, 4.8-5.2 parts of modified talcum powder, 38-42 parts of paraffin oil, 2-4 parts of graphene, 1.4-1.6 parts of accelerator, 0.7-0.8 part of antioxidant and 12-14 parts of defoaming agent.
6. The high-insulation boiling-resistant ethylene propylene diene monomer mixture as claimed in claim 1, wherein the preparation method of the modified talcum powder comprises the following steps: ethanol and a aluminosilicate coupling agent were mixed in a ratio of 1: (0.4-0.8) preparing a modifier by mixing; drying the flaky talcum powder and then putting the dried flaky talcum powder into a mixing barrel; dropping modifier into talcum powder three times at a low speed of 750-780r/min in a mixing barrel, wherein the dropping amount of the modifier is 0.6-1.2% of the weight of the talcum powder in the mixing barrel, the dropping amounts of the modifier three times are respectively 55%, 30% and 15%, and the interval time of each dropping operation is 3-6min; and after the modifier is dripped, adjusting the rotating speed of a mixing barrel to 1600-1800r/min, and reacting for 30min to obtain the modified talcum powder.
7. The high-insulation boiling-resistant ethylene propylene diene monomer mixture according to claim 1, wherein the accelerator comprises one or more of a combination of an accelerator IS-60, an accelerator TBzTD-70, an accelerator MBT-80 and an accelerator DM.
8. The ethylene propylene diene monomer mixture with high insulation and boiling resistance as claimed in claim 1, wherein the antioxidant comprises one or more of phenolic antioxidant, phosphite antioxidant, sulfur-containing antioxidant and amine antioxidant.
9. The preparation method of the high-insulation boiling-resistant ethylene propylene diene monomer mixture as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
adding ethylene propylene diene monomer, epoxy resin, nano silicon dioxide and nano zinc oxide into an internal mixer for pressure mixing;
adding modified talcum powder, carbon black, graphene and paraffin oil for pressurizing and mixing when the temperature reaches 30-35 ℃;
adding antioxidant, defoaming agent and accelerator to carry out pressure mixing when the temperature reaches 80-85 ℃; when the temperature reaches 90-95 ℃, discharging the mixed rubber material to an open mill for rubber returning and mixing, and after sheet discharging, carrying out vulcanization treatment to obtain the ethylene propylene diene monomer rubber mixture.
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| CN113881149A (en) * | 2021-09-24 | 2022-01-04 | 安徽京鸿密封件技术有限公司 | Low-hardness V0-grade flame-retardant ethylene propylene rubber material |
-
2022
- 2022-09-30 CN CN202211206067.1A patent/CN115651321A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532726A (en) * | 2011-12-14 | 2012-07-04 | 上海特缆电工科技有限公司 | Non-toxic and odorless ethylene propylene rubber cable material for submersible motor and preparation method thereof |
| CN106633422A (en) * | 2016-10-19 | 2017-05-10 | 黄宇 | Graphene modified rubber material |
| CN106751014A (en) * | 2016-11-29 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of electro-insulating rubber formula |
| CN106928557A (en) * | 2017-03-28 | 2017-07-07 | 广州市鑫橡极科技有限公司 | A kind of modified EPT rubber and preparation method thereof |
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| CN113881149A (en) * | 2021-09-24 | 2022-01-04 | 安徽京鸿密封件技术有限公司 | Low-hardness V0-grade flame-retardant ethylene propylene rubber material |
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Application publication date: 20230131 |