CN113185779A - EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material and preparation method thereof - Google Patents
EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The invention discloses an EPDM/CM/NBR high-temperature-resistant wear-resistant rubber composite material and a preparation method thereof. EPDM/CM/HNBR is selected as a main material, magnesium oxide/sulfur/DCP/TAI/ZDMA is selected as a cross-linking agent, carbon black is used as a reinforcing agent, NC-1700H wear-resistant agent and high-temperature-resistant wear-resistant flame-retardant reinforcing composite agent are added, and the EPDM/CM/NBR high-temperature-resistant wear-resistant rubber composite material prepared by optimizing the formula and the process has the performances of high wear resistance, impact resistance, high temperature resistance, aging resistance and the like, still has good mechanical property and long service life under the working conditions of high temperature of more than 300 ℃ and high impact and strong abrasion for a long time, and meets the use requirements of high-temperature-resistant wear-resistant flame-retardant rubber products such as conveying belts, lining plates, chutes, sieve plates, mill linings and the like used in the industries such as steel, coke, cement, thermoelectricity, metallurgy and the like. Simple process and easy manufacture.
Description
Technical Field
The invention relates to the technical field of rubber composite materials, in particular to an EPDM/CM/CSM high-temperature-resistant wear-resistant rubber composite material and a preparation method thereof.
Background
The high-temperature-resistant wear-resistant rubber composite material is mainly used for producing high-temperature-resistant industrial and mining rubber products such as conveyor belts, rubber sieve plates, mill rubber linings and the like, and because the rubber products work under the conditions of high-temperature impact load and strong wear for a long time, the temperature of high-temperature materials in industries such as steel, coke, cement, thermoelectricity, metallurgy and the like is very high, generally about 300 ℃ for 250 ℃ and the instantaneous temperature of some materials can reach 600 ℃ for 400 ℃. The industrial and mining high-temperature-resistant rubber product in the prior art mainly uses ethylene propylene diene monomer, has poor wear resistance, generally has the use temperature below 200 ℃, has the instantaneous temperature not exceeding 300 ℃, and can cause the surface to be rapidly worn, generate the phenomena of scalding, cracking, scorching, embrittlement and the like if the industrial and mining high-temperature-resistant rubber product works under the working condition of high temperature above 300 ℃ and high impact and strong abrasion for a long time, damage the working surface and framework materials, and have the service life of only a few weeks or even shorter. The silicon rubber and the fluorine rubber can be used at higher temperature, but the price is too high, so that the general industrial and mineral rubber products are rarely used. Rubber products such as conveyor belts for conveying the high-temperature materials, lining plates, chutes, sieve plates, mill linings and the like which bear high-temperature impact load and strong abrasion working conditions need to have the performances of high wear resistance, impact resistance, high temperature resistance, aging resistance and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an EPDM/CM/HNBR high-temperature-resistant, wear-resistant and flame-retardant rubber composite material which simultaneously has the performances of high wear resistance, impact resistance, high temperature resistance, aging resistance and the like, still has good mechanical property and long service life under the working conditions of high temperature of more than 300 ℃ and high impact and strong wear for a long time, and meets the use requirements of high-temperature-resistant and wear-resistant rubber products such as conveying belts, lining plates, chutes, sieve plates, mill linings and the like used in the industries such as steel, coke, cement, thermoelectricity, metallurgy and the like.
The second purpose of the invention is to provide a preparation method of the rubber composite material, which has simple process and easy manufacture.
The object of the present invention is achieved by the following means.
The invention provides an EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material and a preparation method thereof, and is characterized in that the composite material comprises the following components in percentage by weight:
40-60 parts of Ethylene Propylene Diene Monomer (EPDM), 20-30 parts of chlorinated polyethylene rubber (CM), 20-30 parts of Hydrogenated Nitrile Butadiene Rubber (HNBR), 3-4 parts of zinc oxide, 3-4 parts of magnesium oxide, 2 parts of stearic acid, 1-2.0 parts of sulfur, 3-4 parts of dicumyl peroxide (DCP), 4-6 parts of methacrylic acid octyl (ZDMA), 1-2 parts of triallyl isocyanurate (TAIC), 1.5-2.5 parts of an accelerator, 2-3 parts of an anti-aging agent, 30-40 parts of carbon black (N234), 20-30 parts of carbon black (N330), 6-8 parts of paraffin oil, 4-6 parts of silicon acrylic acid mixed resin (NC-1700H) and 16-20 parts of a high-temperature resistant and wear-resistant reinforcing complexing agent.
The accelerator is a combination of an accelerator M, DM and an accelerator TMTD.
The anti-aging agent is a combination of anti-aging agents BLE and 264 and an anti-aging agent 4010 NA.
The high-temperature-resistant wear-resistant reinforced composite agent is a composition of aramid pulp/thermoplastic phenolic resin/micro-powder nano ceramic aluminum alloy/silane coupling agent KH 550. The mass ratio of the aramid pulp to the thermoplastic phenolic resin to the micro-powder nano-ceramic aluminum alloy to the silane coupling agent KH550 in the composition is 30%/50%/18%/2%.
The thermoplastic phenolic resin is preferably powdery p-tert-octylphenol formaldehyde resin (tackifying resin 203).
The micro powder nano ceramic aluminum alloy has the fineness of 800 meshes, and the mass ratio of nano ceramic to aluminum is 5% and 95% respectively.
The preparation method of the EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material comprises the following steps:
(1) preparation of EPDM/CM masterbatch
EPDM, CM carbon black (234), stearic acid, silicon acrylic acid mixed resin (NC-1700H) and an anti-aging agent are added into an internal mixer for mixing, the rotating speed of the internal mixer is 60 r/min, the mixing time is 180-;
(2) preparation of high-temperature-resistant wear-resistant reinforced complexing agent
Putting aramid pulp, thermoplastic phenolic resin and micro-powder nano ceramic aluminum alloy into a kneader, heating and stirring at the stirring speed of 320-350 r/min, heating to 40-60 ℃, spraying KH550 silane coupling agent, continuing heating and stirring, and stirring at the temperature of 110-115 ℃ for 15-20 min to prepare the high-temperature-resistant wear-resistant reinforced composite agent; in the high-temperature-resistant wear-resistant reinforcing complexing agent, the mass ratio of aramid pulp/thermoplastic phenolic resin/micro-powder nano ceramic aluminum alloy/silane coupling agent KH550 is 30%/50%/18%/2%;
(3) one-stage mixing
Firstly, putting EPDM/CM master batch into an internal mixer, mixing for 40-50 seconds, putting Hydrogenated Nitrile Butadiene Rubber (HNBR), carbon black (N330) and paraffin oil into the internal mixer, continuously mixing for 150-180 seconds, adding zinc oxide, magnesium oxide, methacrylic acid octyl (ZDMA) and a high-temperature-resistant wear-resistant reinforced composite agent, continuously mixing for 180 seconds, discharging the rubber at the temperature of 150-155 ℃, discharging the sheet, cooling to prepare a section of mixed rubber, and standing for 8 hours for use;
(4) two stage mixing
And (3) using an internal mixer for second-stage mixing, wherein the rotor speed of the internal mixer is 20 r/min, putting the first-stage mixed rubber, sulfur, dicumyl peroxide (DCP), triallyl isocyanurate (TAIC) and an accelerator into the internal mixer, mixing for 100 seconds, discharging the rubber at the temperature of 90-100 ℃, discharging the rubber sheet, cooling to obtain second-stage mixed rubber, and standing for 8 hours to obtain the EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material.
Compared with the prior art, the invention has the following beneficial effects: selecting EPDM/CM/HNBR as a main material, magnesium oxide/sulfur/dicumyl peroxide/triallyl isocyanurate/methacrylic acid octyl (ZDMA) as a cross-linking agent, carbon black (N234, N330) as a reinforcing agent, adding NC-1700H wear-resistant agent (silicon acrylic mixed resin) and self-made high-temperature resistant wear-resistant reinforced composite agent, the EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material prepared by optimizing the formula and the process has the properties of high wear resistance, impact resistance, high temperature resistance, aging resistance and the like, still has good mechanical properties and long service life under the working conditions of high temperature of more than 300 ℃, high impact and strong wear for a long time, and meets the use requirements of high-temperature-resistant wear-resistant rubber products such as conveying belts, lining plates, chutes, sieve plates, mill linings and the like used in industries such as steel, coke, cement, thermoelectricity, metallurgy and the like. Simple process and easy manufacture.
Detailed Description
The following examples are given to aid in the understanding of the invention, but are not intended to limit the scope of the invention.
Example 1
The embodiment provides an EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material which is characterized by comprising the following components in percentage by weight:
40 parts of Ethylene Propylene Diene Monomer (EPDM), 30 parts of chlorinated polyethylene rubber (CM), 30 parts of hydrogenated nitrile rubber, 3 parts of zinc oxide, 4 parts of magnesium oxide, 2 parts of stearic acid, 2.0 parts of sulfur, 4 parts of dicumyl peroxide (DCP), 4 parts of methacrylic acid octyl (ZDMA), 1 part of triallyl isocyanurate (TAIC), 1 part of accelerator M, 0.5 part of accelerator TMTD, 1 part of anti-aging agent BLE, 1 part of anti-aging agent 4010NA, 30 parts of carbon black (N234), 30 parts of carbon black (N330), 6 parts of paraffin oil, 6 parts of NC-1700H wear-resisting agent (silicon acrylic mixed resin) and 16 parts of high-temperature-resistant wear-resistant reinforcing complexing agent.
The high-temperature-resistant wear-resistant reinforced composite agent is a composition of aramid pulp/thermoplastic phenolic resin/micro-powder nano ceramic aluminum alloy/silane coupling agent KH 550. The mass ratio of the aramid pulp to the thermoplastic phenolic resin to the micro-powder nano-ceramic aluminum alloy to the silane coupling agent KH550 in the composition is 30%/50%/18%/2%.
The thermoplastic phenolic resin is preferably powdery p-tert-octylphenol formaldehyde resin (tackifying resin 203).
The micro-powder nano ceramic-aluminum alloy is nano ceramic-aluminum alloy powder produced by New ceramic-aluminum Material research institute of Anhui, and has the fineness of 800 meshes. In the micro-powder nano ceramic-aluminum alloy, the mass percentage of the nano ceramic is 5%, and the mass percentage of the aluminum is 95%.
The preparation method of the EPDM/CM/CSM high-temperature-resistant wear-resistant rubber composite material comprises the following steps:
(1) preparation of EPDM/CM masterbatch
EPDM, CM, carbon black (234), stearic acid, silicon acrylic acid mixed resin (NC-1700H) and an anti-aging agent are added into an internal mixer for mixing, the rotating speed of the internal mixer is 60 r/min, the mixing time is 180-.
(2) Preparation of high-temperature-resistant wear-resistant reinforced complexing agent
Putting aramid pulp, thermoplastic phenolic resin and micro-powder nano ceramic aluminum alloy into a kneader, heating and stirring at the stirring speed of 320-350 r/min, heating to 40-60 ℃, spraying KH550 silane coupling agent, continuing heating and stirring, and stirring at the temperature of 110-115 ℃ for 15-20 min to prepare the high-temperature-resistant wear-resistant reinforced composite agent. In the high-temperature-resistant wear-resistant reinforcing complexing agent, the mass ratio of the aramid pulp/the thermoplastic phenolic resin/the micro-powder nano ceramic aluminum alloy/the silane coupling agent KH550 is 30%/50%/18%/2%.
(3) One-stage mixing
The first-stage mixing uses an internal mixer, the rotor speed of the internal mixer is 50 r/min, the EPDM/CM master batch is firstly put into the internal mixer for mixing for 40-50 seconds, then the Hydrogenated Nitrile Butadiene Rubber (HNBR), the carbon black (N330) and the paraffin oil are put into the internal mixer for continuously mixing for 150-180 seconds, then the zinc oxide, the magnesium oxide, the methacrylic acid octyl (ZDMA) and the high-temperature resistant wear-resistant reinforced composite agent are put into the internal mixer for continuously mixing for 180 seconds, the rubber discharge temperature is 150-155 ℃, the sheet is taken out and cooled, the first-stage mixing is prepared, and the mixed rubber is used after being placed for 8 hours.
(4) Two stage mixing
And (3) using an internal mixer for second-stage mixing, wherein the rotor speed of the internal mixer is 20 r/min, putting the first-stage mixed rubber, sulfur, dicumyl peroxide (DCP), triallyl isocyanurate (TAIC) and an accelerator into the internal mixer, mixing for 100 seconds, discharging the rubber at the temperature of 90-100 ℃, discharging the rubber sheet, cooling to obtain second-stage mixed rubber, and standing for 8 hours to obtain the EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material.
The test data of this example are shown in Table 1.
Example 2
The embodiment provides an EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material which is characterized by comprising the following components in percentage by weight:
50 parts of Ethylene Propylene Diene Monomer (EPDM), 25 parts of chlorinated polyethylene rubber (CM), 25 parts of hydrogenated nitrile-butadiene rubber (NBR), 3.5 parts of zinc oxide, 3.5 parts of magnesium oxide, 2 parts of stearic acid, 1.5 parts of sulfur, 3.5 parts of dicumyl peroxide (DCP), 5 parts of methacrylic acid octyl (ZDMA), 1.5 parts of triallyl isocyanurate (TAIC), 1 part of accelerator DM, 1 part of accelerator TMTD, 0.7 part of antioxidant BLE, 2640.8 parts of antioxidant, 4010NA 1 part of antioxidant, 35 parts of carbon black (N234), 25 parts of carbon black (N330), 7 parts of paraffin oil, 5 parts of NC-1700H wear-resistant agent (silicon acrylic mixed resin) and 18 parts of high-temperature-resistant wear-resistant flame-retardant reinforcing complexing agent.
The high-temperature-resistant wear-resistant reinforcing complexing agent is a composition of aramid pulp/thermoplastic phenolic resin/micro-powder nano-ceramic aluminum alloy/silane coupling agent KH550, and the mass ratio of the aramid pulp/thermoplastic phenolic resin/micro-powder nano-ceramic aluminum alloy/silane coupling agent KH550 in the composition is 30%/50%/18%/2%.
The thermoplastic phenolic resin is preferably powdery p-tert-octylphenol formaldehyde resin (tackifying resin 203).
The micro-powder nano ceramic-aluminum alloy is nano ceramic-aluminum alloy powder produced by New ceramic-aluminum Material research institute of Anhui, and has the fineness of 800 meshes. In the micro-powder nano ceramic-aluminum alloy, the mass percentage of the nano ceramic is 5%, and the mass percentage of the aluminum is 95%.
The preparation method of this example is the same as example 1.
The test data of this example are shown in Table 1.
Example 3
The embodiment provides an EPDM/CM/HNBR high-temperature-resistant wear-resistant rubber composite material which is characterized by comprising the following components in percentage by weight:
60 parts of Ethylene Propylene Diene Monomer (EPDM), 20 parts of chlorinated polyethylene rubber (CM), 20 parts of Hydrogenated Nitrile Butadiene Rubber (HNBR), 4 parts of zinc oxide, 3 parts of magnesium oxide, 2 parts of stearic acid, 1 part of sulfur, 3 parts of dicumyl peroxide (DCP), 6 parts of methacrylic acid octyl (ZDMA), 2 parts of triallyl isocyanurate (TAIC), 0.7 part of accelerator DM, 0.8 part of accelerator DM, 1 part of accelerator TMTD, 1 part of anti-aging agent BLE, 2641 parts of anti-aging agent, 4010NA 1 part of anti-aging agent, 40 parts of carbon black (N234), 20 parts of carbon black (N330), 8 parts of paraffin oil, 4 parts of NC-1700H wear-resistant agent (silicon acrylic mixed resin) and 20 parts of high-temperature-resistant wear-resistant flame-retardant reinforcing complexing agent.
The high-temperature-resistant wear-resistant reinforced composite agent is a composition of aramid pulp/thermoplastic phenolic resin/micro-powder nano-ceramic aluminum alloy/silane coupling agent KH550, and the mass ratio of the aramid pulp/thermoplastic phenolic resin/micro-powder nano-ceramic aluminum alloy/silane coupling agent KH550 in the composition is 30%/50%/18%/2%).
The thermoplastic phenolic resin is preferably powdery p-tert-octylphenol formaldehyde resin (tackifying resin 203).
The micro-powder nano ceramic-aluminum alloy is nano ceramic-aluminum alloy powder produced by New ceramic-aluminum Material research institute of Anhui, and has the fineness of 800 meshes. In the micro-powder nano ceramic-aluminum alloy, the mass percentage of the nano ceramic is 5%, and the mass percentage of the aluminum is 95%.
The preparation method of this example is the same as example 1.
The test data of this example are shown in Table 1.
Comparative examples
The comparative example is a high temperature resistant rubber composite material using ethylene propylene diene monomer as a main material.
The high-temperature resistant rubber composite material of the comparative example comprises the following components in percentage by weight:
100 parts of Ethylene Propylene Diene Monomer (EPDM), 4 parts of zinc oxide, 4 parts of magnesium oxide, 2 parts of stearic acid, 0.8 part of sulfur, 4 parts of dicumyl peroxide (DCP), 2 parts of triallyl isocyanurate (TAIC), 1 part of an accelerator M, 1 part of an accelerator TMTDM, 1 part of an anti-aging agent RD, 1 part of anti-aging agent 4010NA, 50 parts of carbon black (N330), 10 parts of paraffin oil and 6 parts of coumarone resin.
The preparation method of the high temperature resistant rubber composite material of the comparative example includes the following steps:
(1) one-stage mixing
The first-stage mixing uses an internal mixer, the rotor speed of the internal mixer is 60 r/min, firstly Ethylene Propylene Diene Monomer (EPDM) is put into the internal mixer for mixing for 90-120 seconds, then zinc oxide, magnesium oxide, stearic acid, an anti-aging agent, carbon black, paraffin oil and coumarone resin are put into the internal mixer for mixing for 240-270 seconds, the rubber discharge temperature is 155-160 ℃, the sheet is taken out, the sheet is cooled, the first-stage mixed rubber is prepared, and the mixed rubber is used after being placed for 8 hours.
(2) Two stage mixing
The second-stage mixing uses an internal mixer, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, dicumyl peroxide (DCP), triallyl isocyanurate (TAIC) and an accelerator are put into the internal mixer to be mixed for 120 seconds, the rubber discharge temperature is 90-100 ℃, the sheet is taken out and cooled to prepare second-stage mixed rubber, and the second-stage mixed rubber is placed for 8 hours, namely the high-temperature resistant rubber composite material of the comparative example.
The test data of the comparative examples are shown in Table 1.
TABLE 1 test data
Note: thickness of the test piece: 15 mm; vulcanization pressure: 3.2 MP; vulcanization temperature: 150 +/-3 ℃; and (3) vulcanization time: and (4) 23 min.
As can be seen from the above table, the tensile strength, elongation at break and hardness before aging of examples 1, 2 and 3 of the present invention are slightly different from those of comparative examples, while the properties after aging are greatly different. (1) The average change rates of the tensile strength and the elongation at break of the samples 1, 2 and 3 after aging at 180 ℃ for 96h are respectively-6.7% and-7.1%, and the hardness is increased by 8 Shore A on average, which shows that the high-temperature aging resistant performance of the invention is excellent; while the comparative examples show the inferior high temperature aging resistance, in which the change rates of tensile strength and elongation at break are-47% and 62%, respectively, under the same aging conditions, and the hardness is increased by 13 Shore A. (2) The average value of the abrasion loss of examples 1, 2 and 3 of the present invention was 45 mm 3The invention is proved to have excellent wear-resisting property; while the abrasion loss of the comparative example was 168 mm 3The comparative examples are shown to have poor abrasion resistance.
Claims (7)
1. An EPDM/CM/HNBR high temperature resistant wear-resistant flame-retardant rubber composite material is characterized by comprising the following components in percentage by weight:
40-60 parts of ethylene propylene diene monomer, 20-30 parts of chlorinated polyethylene rubber, 20-30 parts of hydrogenated nitrile rubber, 3-4 parts of zinc oxide, 3-4 parts of magnesium oxide, 2 parts of stearic acid, 1-2.0 parts of sulfur, 3-4 parts of dicumyl peroxide, 4-6 parts of methacrylic acid octyl, 1-2 parts of triallyl isocyanurate, 1.5-2.5 parts of an accelerator, 2-3 parts of an anti-aging agent, 30-40 parts of carbon black N23430, 20-30 parts of carbon black N33020, 6-8 parts of paraffin oil, 4-6 parts of silicon acrylic acid mixed resin and 16-20 parts of a high-temperature-resistant wear-resistant reinforcing composite agent.
2. The EPDM/CM/HNBR high temperature resistant, abrasion resistant, flame retardant rubber composite of claim 1 wherein: the accelerator is a combination of an accelerator M, DM and an accelerator TMTD.
3. The EPDM/CM/HNBR high temperature resistant, abrasion resistant, flame retardant rubber composite of claim 1 wherein: the anti-aging agent is a combination of anti-aging agents BLE and 264 and an anti-aging agent 4010 NA.
4. The EPDM/CM/HNBR high temperature resistant, abrasion resistant, flame retardant rubber composite of claim 1 wherein: the high-temperature-resistant wear-resistant reinforced composite agent is a composition of aramid pulp/thermoplastic phenolic resin/micro-powder nano ceramic aluminum alloy/silane coupling agent KH 550; the mass ratio of the aramid pulp to the thermoplastic phenolic resin to the micro-powder nano-ceramic aluminum alloy to the silane coupling agent KH550 in the composition is 30%/50%/18%/2%.
5. The EPDM/CM/HNBR high temperature resistant, abrasion resistant, flame retardant rubber composite of claim 4 wherein: the thermoplastic phenolic resin is preferably powdery p-tert-octyl phenol formaldehyde resin.
6. The EPDM/CM/HNBR high temperature resistant, abrasion resistant, flame retardant rubber composite of claim 4 wherein: the micro powder nano ceramic aluminum alloy has the fineness of 800 meshes, and the mass ratio of nano ceramic to aluminum is 5% and 95% respectively.
7. The method of preparing the EPDM/CM/HNBR high temperature resistant, abrasion resistant, flame retardant rubber composite of claim 1, comprising the steps of:
(1) preparation of EPDM/CM masterbatch
EPDM, CM, carbon black 234, stearic acid, silicon acrylic acid mixed resin and an anti-aging agent are added into an internal mixer for mixing, the rotating speed of the internal mixer is 60 r/min, the mixing time is 180-;
(2) preparation of high-temperature-resistant wear-resistant reinforced complexing agent
Putting aramid pulp, thermoplastic phenolic resin and micro-powder nano ceramic aluminum alloy into a kneader, heating and stirring at the stirring speed of 320-350 r/min, heating to 40-60 ℃, spraying KH550 silane coupling agent, continuing heating and stirring, and stirring at the temperature of 110-115 ℃ for 15-20 min to prepare the high-temperature-resistant wear-resistant reinforced composite agent; in the high-temperature-resistant wear-resistant reinforcing complexing agent, the mass ratio of aramid pulp/thermoplastic phenolic resin/micro-powder nano ceramic aluminum alloy/KH 550 silane coupling agent is 30%/50%/18%/2%;
(3) one-stage mixing
Firstly, putting EPDM/CM master batch into an internal mixer, mixing for 40-50 seconds, putting hydrogenated nitrile-butadiene rubber, carbon black N330 and paraffin oil into the internal mixer, continuing to mix for 150-180 seconds, then putting zinc oxide, magnesium oxide, methacrylic acid octyl and a high-temperature-resistant wear-resistant reinforced composite agent, continuing to mix for 150-180 seconds, discharging at the temperature of 150-155 ℃, discharging pieces, cooling, preparing a section of mixed rubber, and standing for 8 hours for use;
(4) two stage mixing
And (3) using an internal mixer for the second-stage mixing, wherein the rotor speed of the internal mixer is 20 r/min, putting the first-stage mixed rubber, sulfur, dicumyl peroxide, triallyl isocyanurate and an accelerant into the internal mixer, mixing for 120 seconds at the temperature of 90-100 ℃, discharging sheets, cooling to obtain second-stage mixed rubber, and standing for 8 hours.
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| CN115612191A (en) * | 2022-10-17 | 2023-01-17 | 太原理工大学 | High-temperature-resistant anti-aging flame-retardant rubber material, adhesive, high-temperature-resistant high-bonding flame-retardant rubber conveyor belt and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115612191A (en) * | 2022-10-17 | 2023-01-17 | 太原理工大学 | High-temperature-resistant anti-aging flame-retardant rubber material, adhesive, high-temperature-resistant high-bonding flame-retardant rubber conveyor belt and preparation method thereof |
| CN115612191B (en) * | 2022-10-17 | 2023-08-22 | 太原理工大学 | High-temperature-resistant aging-resistant flame-retardant rubber material, rubberizing, high-temperature-resistant high-adhesion-resistant flame-retardant rubber conveyer belt and preparation method thereof |
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