CN112280194A - Rubber material capable of expanding in presence of air and preparation method thereof - Google Patents
Rubber material capable of expanding in presence of air and preparation method thereof Download PDFInfo
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- CN112280194A CN112280194A CN202010958725.7A CN202010958725A CN112280194A CN 112280194 A CN112280194 A CN 112280194A CN 202010958725 A CN202010958725 A CN 202010958725A CN 112280194 A CN112280194 A CN 112280194A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 126
- 239000000463 material Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims abstract description 43
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 31
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 25
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 25
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 25
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000006229 carbon black Substances 0.000 claims abstract description 19
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 19
- 239000004014 plasticizer Substances 0.000 claims abstract description 19
- 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 17
- 239000013543 active substance Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 238000004090 dissolution Methods 0.000 claims description 17
- 229920002943 EPDM rubber Polymers 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 230000003213 activating effect Effects 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 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 description 2
- IPJGAEWUPXWFPL-UHFFFAOYSA-N 1-[3-(2,5-dioxopyrrol-1-yl)phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC(N2C(C=CC2=O)=O)=C1 IPJGAEWUPXWFPL-UHFFFAOYSA-N 0.000 claims description 2
- 239000013032 Hydrocarbon resin Substances 0.000 claims description 2
- 239000005662 Paraffin oil Substances 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- WERKSKAQRVDLDW-ANOHMWSOSA-N [(2s,3r,4r,5r)-2,3,4,5,6-pentahydroxyhexyl] (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO WERKSKAQRVDLDW-ANOHMWSOSA-N 0.000 claims description 2
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 2
- 229920006272 aromatic hydrocarbon resin Polymers 0.000 claims description 2
- 239000010692 aromatic oil Substances 0.000 claims description 2
- 229920006270 hydrocarbon resin Polymers 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims description 2
- 229920000151 polyglycol Polymers 0.000 claims description 2
- 239000010695 polyglycol Substances 0.000 claims description 2
- -1 polyoxyethylene Polymers 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 4
- 239000011358 absorbing material Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000001976 improved effect Effects 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000010060 peroxide vulcanization Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000004073 vulcanization Methods 0.000 description 22
- 239000007789 gas Substances 0.000 description 17
- 238000005457 optimization Methods 0.000 description 9
- 150000001335 aliphatic alkanes Chemical class 0.000 description 7
- 230000000704 physical effect Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008961 swelling Effects 0.000 description 3
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- MEKDPHXPVMKCON-UHFFFAOYSA-N ethane;methane Chemical compound C.CC MEKDPHXPVMKCON-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to the technical field of rubber materials, in particular to a gas-expandable rubber material which is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 40-80 parts of carbon black, 0-10 parts of an active agent, 2-8 parts of an anti-aging agent, 0-20 parts of liquid ethylene propylene rubber, 5-30 parts of a modified hydrocarbon-absorbing component, 0-10 parts of a dissolving promoter, 5-30 parts of a plasticizer, 3-5 parts of dicumyl peroxide and 1-5 parts of an auxiliary crosslinking agent. Also discloses a preparation method of the rubber material expanding in the presence of air. According to the gas-expandable rubber material and the preparation method thereof, oleophylic high-temperature-resistant ethylene propylene rubber is used as a gas-expandable rubber composite matrix, a hydrocarbon absorbing material, a high-temperature-resistant anti-aging system and a low-heat-generation reinforcing system are matched, and the rubber compounded by a peroxide vulcanization system is used, so that the aging resistance, the high-temperature high-pressure hydrocarbon absorbing performance, the high-rate expansion performance and the like of the rubber are improved.
Description
Technical Field
The invention relates to the technical field of rubber materials, in particular to a rubber material capable of expanding in the presence of air and a preparation method thereof.
Background
In the prior art, the oleophilic ethylene propylene rubber material in the rubber material has the capability of dissolving and expanding when encountering oil, but does not have the capability of quickly absorbing alkane and hydrocarbon components. Therefore, when storing high-temperature and high-pressure alkane gas or hydrocarbon gas, the sealing property, high-pressure resistance, and the like of the rubber are poor, and the storage performance is affected.
At present, no report that hydrocarbon-absorbing expansion rubber and an external packer are used together to solve the long-term sealing problem of well cementation is seen at home and abroad, and a gas-bearing sustainable expansion rubber material is urgently needed to be developed to meet the requirements of segmented well completion and well cementation auxiliary sealing of gas wells at home and abroad.
Disclosure of Invention
The invention aims to solve the technical defects and provide a rubber material expanding in the presence of gas and a preparation method thereof, which can realize the expansion of the rubber material by absorbing hydrocarbon and alkane gases.
In order to achieve the purpose, the rubber material capable of expanding in the presence of air is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 40-80 parts of carbon black, 0-10 parts of an active agent, 2-8 parts of an anti-aging agent, 0-20 parts of liquid ethylene propylene rubber, 5-30 parts of a modified hydrocarbon absorption component, 0-10 parts of a dissolution promoter, 5-30 parts of a plasticizer, 3-5 parts of dicumyl peroxide and 1-5 parts of an auxiliary crosslinking agent.
As an optimization: the ethylene propylene rubber is composed of one or two of ethylene propylene diene monomer and ethylene propylene diene monomer.
As an optimization: the carbon black is composed of one or more of N220, N234, N330, N550 and N660.
As an optimization: the anti-aging agent is composed of one or more of an anti-aging agent RD, an anti-aging agent MB, an anti-aging agent 4010NA and an anti-aging agent 4020.
As an optimization: the liquid ethylene propylene rubber is composed of one or two of liquid ethylene propylene diene monomer rubber and liquid ethylene propylene diene monomer rubber.
As an optimization: the active agent is composed of one or more of nano zinc oxide, magnesium oxide and stearic acid.
As an optimization: the modified hydrocarbon absorption component is composed of one or more of petroleum resin, aromatic hydrocarbon resin and naphthenic hydrocarbon resin.
As an optimization: the dissolving agent consists of one or two of polyoxyethylene sorbitol monooleate and alkylaryl polyglycol ether.
As an optimization: the plasticizer is composed of one or more of mechanical oil, paraffin oil, aromatic oil and naphthenic oil.
As an optimization: the auxiliary crosslinking agent is composed of one or two of triallyl isocyanurate and N, N' -m-phenylene bismaleimide.
A preparation method of a rubber material expanding in the presence of air specifically comprises the following steps:
step one, 100 parts of ethylene propylene rubber are put into a rubber internal mixer to react for 80 to 120 seconds at the temperature of 30 to 50 ℃;
secondly, putting 40-80 parts of carbon black, 0-10 parts of an active agent, 0-20 parts of liquid ethylene propylene rubber, 5-30 parts of a modified hydrocarbon absorption component, 0-10 parts of a dissolution promoter and 5-30 parts of a plasticizer into a rubber internal mixer, and reacting for 120-150 seconds at the temperature of 50-80 ℃;
thirdly, placing 2-8 parts of the anti-aging agent into a rubber internal mixer, mixing for 400 seconds or taking out the mixed rubber material when the temperature reaches 150 ℃, wherein the mixing time or the temperature is firstly reached;
fourthly, discharging the rubber sheets in an open mill until the rubber materials are cooled to 30-60 ℃; the temperature of the internal mixer is controlled between 40 ℃ and 50 ℃, and the cooled rubber, 3 to 5 parts of dicumyl peroxide and 1 to 5 parts of auxiliary crosslinking agent are put into the internal mixer to react for 100 and 120 seconds at the temperature of between 50 ℃ and 85 ℃ to obtain the required product.
According to the gas-expandable rubber material and the preparation method thereof, oleophylic high-temperature-resistant ethylene propylene rubber is used as a gas-expandable rubber composite matrix, a hydrocarbon absorbing material, a high-temperature-resistant anti-aging system and a low-heat-generation reinforcing system are matched, and the rubber compounded by a peroxide vulcanization system is used, so that the aging resistance, the high-temperature high-pressure hydrocarbon absorbing performance, the high-rate expansion performance and the like of the rubber are improved.
Wherein: the gas-swelling rubber material is applied to a self-swelling packer and used for segmented well completion of a gas well and well cementation auxiliary sealing, and works in the environment of high-temperature and high-pressure methane gas, ethane gas, methane ethane mixed gas and alkane gas for a long time, so that the rubber material has the characteristics of high temperature resistance, high pressure resistance, gas swelling and good sealing property.
The rubber is a novel functional polymer material, and the absorption promoting and dissolution promoting material and the rubber elastomer are dissolved into a whole, so that the rubber is formed into a material which has the elasticity and high physical property of rubber, can absorb alkane expansion, does not run off corresponding components under the conditions of high temperature and high pressure, and can adapt to structural change and have a high pressure-resistant sealing function. According to a large amount of practices and researches, the rubber which expands in the presence of air has the capacity of quickly absorbing alkane and hydrocarbon components, plays roles of quickly absorbing and assisting in expansion, and enables the rubber to quickly swell after being absorbed without losing corresponding components and rebounding and shrinking after swelling. The ethylene propylene rubber main body material has good high temperature resistance and physical properties, but in a high-temperature and high-pressure environment, the physical properties of the rubber material after swelling absorption are reduced, and the rubber material becomes hard, cracked and brittle after aging, an anti-aging system needs to be added into the rubber material to ensure the aging resistance of the rubber material, and the expansion rate of the rubber material do not need to be influenced. Among various vulcanization systems of rubber, the peroxide system can endow the rubber with the most excellent comprehensive physical and mechanical properties (cross-linking bonds with high bond energy and high cross-linking density can be formed), and is also favorable for obtaining high elasticity and high tearing force, improving various physical properties of the rubber, ensuring that the rubber can meet the actual requirements after expansion in a stretched state, and keeping good physical properties.
Physical properties: the tensile strength is more than or equal to 10MPa, the elongation at break is more than or equal to 350, and the hardness is more than or equal to 60.
The applicable temperature is as follows: 60-180 ℃; suitable media are: methane gas, ethane gas, methane ethane mixed gas and alkane gas.
The applicable gas pressure: 0-40 MPa; the applicable state is as follows: a stretched state and a normal state; pressure resistance: not less than 15 MPa.
The vulcanization time of the rubber material expanding in the presence of air is 15-25 minutes, and the vulcanization temperature is as follows: 160 ℃, vulcanization pressure: 8-10 MPa.
Detailed Description
The invention is further described below by way of examples.
Example 1:
the rubber material capable of expanding in the presence of air, which is described in the embodiment, is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 60 parts of carbon black, 2 parts of an activating agent, 3 parts of an anti-aging agent, 5 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter, 15 parts of a plasticizer, 3 parts of dicumyl peroxide and 4 parts of an auxiliary crosslinking agent.
A preparation method of a rubber material expanding in the presence of air specifically comprises the following steps:
step one, 100 parts of ethylene propylene rubber are put into a rubber internal mixer to react for 80 to 120 seconds at the temperature of 30 to 50 ℃;
secondly, putting 60 parts of carbon black, 2 parts of an active agent, 5 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter and 15 parts of a plasticizer into a rubber internal mixer, and reacting for 120-150 seconds at the temperature of 50-80 ℃;
thirdly, 3 parts of anti-aging agent is put into a rubber internal mixer, and the rubber material is taken out when the rubber is mixed for 500 seconds or the temperature reaches 150 ℃, wherein the mixing time or the temperature is firstly reached;
fourthly, discharging the rubber sheets in an open mill until the rubber materials are cooled to 30-60 ℃; the temperature of the internal mixer is controlled between 40 ℃ and 50 ℃, and the cooled rubber, 3 parts of dicumyl peroxide and 4 parts of auxiliary crosslinking agent are put into the internal mixer to react for 100 and 120 seconds at the temperature of between 50 ℃ and 85 ℃ to obtain the required product.
Vulcanization temperature: 160 ℃; the vulcanization pressure is 8-10 MPa; and (3) vulcanization time: 20-25 minutes.
Tensile strength (MPa): 10-11; elongation at break (%): 450-; hardness (shore a): 55-60 parts; t90 (min: s) 13-14, expansion ratio (%): 120-150.
Example 2:
the rubber material capable of expanding in the presence of air described in the embodiment is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 70 parts of carbon black, 2 parts of an activating agent, 3 parts of an anti-aging agent, 6 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter, 15 parts of a plasticizer, 3 parts of dicumyl peroxide and 4 parts of an auxiliary crosslinking agent.
A preparation method of a rubber material expanding in the presence of air specifically comprises the following steps:
step one, 100 parts of ethylene propylene rubber are put into a rubber internal mixer to react for 80 to 120 seconds at the temperature of 30 to 50 ℃;
secondly, putting 70 parts of carbon black, 2 parts of an active agent, 6 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter and 15 parts of a plasticizer into a rubber internal mixer, and reacting for 120-150 seconds at the temperature of 50-80 ℃;
thirdly, 3 parts of anti-aging agent is put into a rubber internal mixer, and the rubber material is taken out when the rubber is mixed for 500 seconds or the temperature reaches 150 ℃, wherein the mixing time or the temperature is firstly reached;
fourthly, discharging the rubber sheets in an open mill until the rubber materials are cooled to 30-60 ℃; the temperature of the internal mixer is controlled between 40 ℃ and 50 ℃, and the cooled rubber, 3 parts of dicumyl peroxide and 4 parts of auxiliary crosslinking agent are put into the internal mixer to react for 100 and 120 seconds at the temperature of between 50 ℃ and 85 ℃ to obtain the required product.
Vulcanization temperature: 160 ℃; the vulcanization pressure is 8-10 MPa; and (3) vulcanization time: 20-25 minutes.
Tensile strength (MPa): 11-13; elongation at break (%): 450-; hardness (shore a): 60-65 parts; t90 (min: s) 13-14, expansion ratio (%): 120-150.
Example 3:
the rubber material capable of expanding in the presence of air, which is described in the embodiment, is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 60 parts of carbon black, 2 parts of an activating agent, 3 parts of an anti-aging agent, 10 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter, 15 parts of a plasticizer, 3 parts of dicumyl peroxide and 4 parts of an auxiliary crosslinking agent.
A preparation method of a rubber material expanding in the presence of air specifically comprises the following steps:
step one, 100 parts of ethylene propylene rubber are put into a rubber internal mixer to react for 80 to 120 seconds at the temperature of 30 to 50 ℃;
secondly, putting 60 parts of carbon black, 2 parts of an active agent, 10 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter and 15 parts of a plasticizer into a rubber internal mixer, and reacting for 120-150 seconds at the temperature of 50-80 ℃;
thirdly, 3 parts of anti-aging agent is put into a rubber internal mixer, and the rubber material is taken out when the rubber is mixed for 500 seconds or the temperature reaches 150 ℃, wherein the mixing time or the temperature is firstly reached;
fourthly, discharging the rubber sheets in an open mill until the rubber materials are cooled to 30-60 ℃; the temperature of the internal mixer is controlled between 40 ℃ and 50 ℃, and the cooled rubber, 3 parts of dicumyl peroxide and 4 parts of auxiliary crosslinking agent are put into the internal mixer to react for 100 and 120 seconds at the temperature of between 50 ℃ and 85 ℃ to obtain the required product.
Vulcanization temperature: 160 ℃; the vulcanization pressure is 8-10 MPa; and (3) vulcanization time: 20-25 minutes.
Tensile strength (MPa): 11-13; elongation at break (%): 500-550; hardness (shore a): 60-65 parts; t90 (min: s) 13-14, expansion ratio (%): 120-150.
Example 4:
the rubber material capable of expanding in the presence of air, which is described in the embodiment, is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 60 parts of carbon black, 2 parts of an activating agent, 3 parts of an anti-aging agent, 5 parts of liquid ethylene propylene rubber, 20 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter, 15 parts of a plasticizer, 3 parts of dicumyl peroxide and 4 parts of an auxiliary crosslinking agent.
A preparation method of a rubber material expanding in the presence of air specifically comprises the following steps:
step one, 100 parts of ethylene propylene rubber are put into a rubber internal mixer to react for 80 to 120 seconds at the temperature of 30 to 50 ℃;
secondly, putting 60 parts of carbon black, 2 parts of an active agent, 5 parts of liquid ethylene propylene rubber, 20 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter and 15 parts of a plasticizer into a rubber internal mixer, and reacting at 50-80 ℃ for 120-150 seconds;
thirdly, 3 parts of anti-aging agent is put into a rubber internal mixer, and the rubber material is taken out when the rubber is mixed for 500 seconds or the temperature reaches 150 ℃, wherein the mixing time or the temperature is firstly reached;
fourthly, discharging the rubber sheets in an open mill until the rubber materials are cooled to 30-60 ℃; the temperature of the internal mixer is controlled between 40 ℃ and 50 ℃, and the cooled rubber, 3 parts of dicumyl peroxide and 4 parts of auxiliary crosslinking agent are put into the internal mixer to react for 100 and 120 seconds at the temperature of between 50 ℃ and 85 ℃ to obtain the required product.
Vulcanization temperature: 160 ℃; the vulcanization pressure is 8-10 MPa; and (3) vulcanization time: 20-25 minutes.
Tensile strength (MPa): 8-10; elongation at break (%): 400-450; hardness (shore a): 58-63; t90 (min: s) 14-17, expansion ratio (%): 150-200.
Example 5:
the rubber material capable of expanding in the presence of air, which is described in the embodiment, is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 60 parts of carbon black, 2 parts of an activating agent, 3 parts of an anti-aging agent, 5 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter, 25 parts of a plasticizer, 3 parts of dicumyl peroxide and 4 parts of an auxiliary crosslinking agent.
A preparation method of a rubber material expanding in the presence of air specifically comprises the following steps:
step one, 100 parts of ethylene propylene rubber are put into a rubber internal mixer to react for 80 to 120 seconds at the temperature of 30 to 50 ℃;
secondly, putting 60 parts of carbon black, 2 parts of an active agent, 5 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter and 25 parts of a plasticizer into a rubber internal mixer, and reacting at 50-80 ℃ for 120-150 seconds;
thirdly, 3 parts of anti-aging agent is put into a rubber internal mixer, and the rubber material is taken out when the rubber is mixed for 500 seconds or the temperature reaches 150 ℃, wherein the mixing time or the temperature is firstly reached;
fourthly, discharging the rubber sheets in an open mill until the rubber materials are cooled to 30-60 ℃; the temperature of the internal mixer is controlled between 40 ℃ and 50 ℃, and the cooled rubber, 3 parts of dicumyl peroxide and 4 parts of auxiliary crosslinking agent are put into the internal mixer to react for 100 and 120 seconds at the temperature of between 50 ℃ and 85 ℃ to obtain the required product.
Vulcanization temperature: 160 ℃; the vulcanization pressure is 8-10 MPa; and (3) vulcanization time: 20-25 minutes.
Tensile strength (MPa): 8-10; elongation at break (%): 550-600; hardness (shore a): 53-58; t90 (min: s) 13-14, expansion ratio (%): 150-180.
Example 6:
the rubber material capable of expanding in the presence of air, which is described in the embodiment, is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 60 parts of carbon black, 2 parts of an activating agent, 3 parts of an anti-aging agent, 5 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter, 15 parts of a plasticizer, 4 parts of dicumyl peroxide and 3 parts of an auxiliary crosslinking agent.
A preparation method of a rubber material expanding in the presence of air specifically comprises the following steps:
step one, 100 parts of ethylene propylene rubber are put into a rubber internal mixer to react for 80 to 120 seconds at the temperature of 30 to 50 ℃;
secondly, putting 60 parts of carbon black, 2 parts of an active agent, 5 parts of liquid ethylene propylene rubber, 15 parts of a modified hydrocarbon absorption component, 2 parts of a dissolution promoter and 15 parts of a plasticizer into a rubber internal mixer, and reacting for 120-150 seconds at the temperature of 50-80 ℃;
thirdly, 3 parts of anti-aging agent is put into a rubber internal mixer, and the rubber material is taken out when the rubber is mixed for 500 seconds or the temperature reaches 150 ℃, wherein the mixing time or the temperature is firstly reached;
fourthly, discharging the rubber sheets in an open mill until the rubber materials are cooled to 30-60 ℃; the temperature of the internal mixer is controlled between 40 ℃ and 50 ℃, and the cooled rubber, 4 parts of dicumyl peroxide and 3 parts of auxiliary crosslinking agent are put into the internal mixer to react for 100 and 120 seconds at the temperature of between 50 ℃ and 85 ℃ to obtain the required product.
Vulcanization temperature: 160 ℃; the vulcanization pressure is 8-10 MPa; and (3) vulcanization time: 20-25 minutes.
Tensile strength (MPa): 10-11; elongation at break (%): 450-; hardness (shore a): 55-60 parts; t90 (min: s) 9-11, expansion ratio (%): 120-150.
Claims (10)
1. A rubber material expanding in the presence of air is characterized in that: the ethylene propylene rubber anti-aging agent is prepared from the following raw materials, by weight, 100 parts of ethylene propylene rubber, 40-80 parts of carbon black, 0-10 parts of an activating agent, 2-8 parts of an anti-aging agent, 0-20 parts of liquid ethylene propylene rubber, 5-30 parts of a modified hydrocarbon-absorbing component, 0-10 parts of a dissolution promoter, 5-30 parts of a plasticizer, 3-5 parts of dicumyl peroxide and 1-5 parts of an auxiliary crosslinking agent.
2. The air-swellable rubber material as claimed in claim 1, wherein: the ethylene propylene rubber is composed of one or two of ethylene propylene diene monomer and ethylene propylene diene monomer.
3. The air-swellable rubber material as claimed in claim 1, wherein: the carbon black consists of one or more of N220, N234, N330, N550 and N660; the anti-aging agent is composed of one or more of an anti-aging agent RD, an anti-aging agent MB, an anti-aging agent 4010NA and an anti-aging agent 4020.
4. The air-swellable rubber material as claimed in claim 1, wherein: the liquid ethylene propylene rubber is composed of one or two of liquid ethylene propylene diene monomer rubber and liquid ethylene propylene diene monomer rubber.
5. The air-swellable rubber material as claimed in claim 1, wherein: the active agent is composed of one or more of nano zinc oxide, magnesium oxide and stearic acid.
6. The air-swellable rubber material as claimed in claim 1, wherein: the modified hydrocarbon absorption component is composed of one or more of petroleum resin, aromatic hydrocarbon resin and naphthenic hydrocarbon resin.
7. The air-swellable rubber material as claimed in claim 1, wherein: the dissolving agent consists of one or two of polyoxyethylene sorbitol monooleate and alkylaryl polyglycol ether.
8. The air-swellable rubber material as claimed in claim 1, wherein: the plasticizer is composed of one or more of mechanical oil, paraffin oil, aromatic oil and naphthenic oil.
9. The air-swellable rubber material as claimed in claim 1, wherein: the auxiliary crosslinking agent is composed of one or two of triallyl isocyanurate and N, N' -m-phenylene bismaleimide.
10. A preparation method of a rubber material expanding in the presence of air is characterized by comprising the following steps: the method specifically comprises the following steps:
step one, 100 parts of ethylene propylene rubber are put into a rubber internal mixer to react for 80 to 120 seconds at the temperature of 30 to 50 ℃;
secondly, putting 40-80 parts of carbon black, 0-10 parts of an active agent, 0-20 parts of liquid ethylene propylene rubber, 5-30 parts of a modified hydrocarbon absorption component, 0-10 parts of a dissolution promoter and 5-30 parts of a plasticizer into a rubber internal mixer, and reacting for 120-150 seconds at the temperature of 50-80 ℃;
thirdly, placing 2-8 parts of the anti-aging agent into a rubber internal mixer, mixing for 400 seconds or taking out the mixed rubber material when the temperature reaches 150 ℃, wherein the mixing time or the temperature is firstly reached;
fourthly, discharging the rubber sheets in an open mill until the rubber materials are cooled to 30-60 ℃; the temperature of the internal mixer is controlled between 40 ℃ and 50 ℃, and the cooled rubber, 3 to 5 parts of dicumyl peroxide and 1 to 5 parts of auxiliary crosslinking agent are put into the internal mixer to react for 100 and 120 seconds at the temperature of between 50 ℃ and 85 ℃ to obtain the required product.
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| CN115246968A (en) * | 2022-07-15 | 2022-10-28 | 浙江双箭橡胶股份有限公司 | High-temperature-resistant wear-resistant covering rubber for conveyor belt and preparation method thereof |
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