CN111808374A - Ethylene propylene diene monomer rubber compound - Google Patents
Ethylene propylene diene monomer rubber compound Download PDFInfo
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- CN111808374A CN111808374A CN201910290578.8A CN201910290578A CN111808374A CN 111808374 A CN111808374 A CN 111808374A CN 201910290578 A CN201910290578 A CN 201910290578A CN 111808374 A CN111808374 A CN 111808374A
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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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- 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
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- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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Abstract
The preparation method of the ethylene propylene diene monomer rubber compound comprises the following steps: step 1: firstly, mixing the main material, the anti-aging agent, the solubilizer and the DTDC accelerator together, and then adding N330 carbon black, zinc oxide, the modifier, 2280 paraffin oil and the reinforcing agent for continuous mixing; and then adding polyethylene glycol, an organic peroxide crosslinking agent and a CZ accelerant, uniformly mixing at the mixing temperature of 105 ℃, and discharging to obtain the prepared material. Step 2: and (3) adding a vulcanizing agent, a carbamate accelerator and a TBzTD-70 accelerator into the material prepared in the step (1) for vulcanization to obtain the ethylene propylene diene monomer rubber compound. The ethylene propylene diene rubber does not generate carcinogenic substances such as dimethyl nitrosamine and the like in the production and use processes, and effectively reduces the damage degree of rubber in the ethylene propylene diene rubber to polyester wires, so that the rubber material has better heat-resistant stability, excellent low-temperature performance and higher physical and mechanical properties, and the service life of the ethylene propylene diene rubber is prolonged.
Description
Technical Field
The invention relates to the field of ethylene propylene diene monomer, in particular to an ethylene propylene diene monomer rubber compound.
Background
Ethylene-propylene-diene monomer is a copolymer of ethylene, propylene and a small amount of non-conjugated diene, and is one of ethylene-propylene rubbers. The main chain of EPDM consists of chemically stable saturated hydrocarbon, and the side chain contains unsaturated double bond, so EPDM has the ageing resistance such as ozone resistance, heat resistance, weather resistance, etc. Due to the aging resistance of EPDM, EPDM is applied to the fields of automobile parts, waterproof materials for buildings, heat-resistant rubber pipes and the like. However, due to the aging effect of hot air, the pendant group of the EPDM macromolecular chain can be oxidized, and the main chain can be thermally rearranged and degraded, so that the EPDM loses the physical and mechanical properties. Therefore, it is necessary to improve the high temperature resistance of EPDM by adding a heat stabilizer to meet the use requirements in different temperature environments.
Generally, the improvement of the high temperature resistance of the EPDM is realized by graphene. Graphene is composed of sp2 hybridized carbon atoms and has a two-dimensional periodic honeycomb lattice structure of a single atomic layer. The graphene has good heat resistance, flame resistance and unique mechanical properties. However, the graphene is difficult to prepare, and the dispersibility and stability of the graphene are poor when the graphene is used for preparing EPDM, so that the prepared high-temperature resistance is poor. The preparation method of the graphene oxide is simple, and the surface of the graphene oxide contains oxygen-containing functional groups such as hydroxyl, carboxyl and epoxy groups, so that the graphene oxide has high mechanical property and flame retardant property.
In recent years, along with the high-speed development of Chinese economy, the contradiction of energy supply tension is more and more prominent, in order to meet the requirement, each large coal mine adopts high-power coal mining equipment to improve the productivity, the requirement of a cable matched with the coal mining equipment for transmitting power is continuously improved, ethylene propylene rubber insulation has high operation reliability and other advantages, such as high moisture resistance, almost no reduction of electrical and mechanical properties after soaking in water, good water resistance, good electricity resistance and good heat resistance, along with the technical development in the aspects of rubber production, processing and the like, the using amount of ethylene propylene rubber in the cable production is also continuously increased, the existing ethylene propylene rubber material can not meet the social requirement of high-speed development, and how to prepare the ethylene propylene diene monomer rubber compound becomes the technical problem needing to be solved at present.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the ethylene propylene diene monomer rubber compound, and the preparation method of the ethylene propylene diene monomer rubber provided by the invention is simple and easy to realize, can realize mass production, and is beneficial to industrial popularization.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an ethylene propylene diene monomer rubber compound comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 3-10 parts of zinc oxide, 0.5-2 parts of stearic acid, 1-5 parts of polyethylene glycol, 1-3 parts of vulcanizing agent, 10-30 parts of N330 carbon black, 10-25 parts of 2280 paraffin oil, 20-30 parts of silicone rubber, 2-4 parts of modifier, 10-15 parts of solubilizer, 90-120 parts of reinforcing agent, 2-5 parts of organic peroxide cross-linking agent, 3-10 parts of hyperbranched phosphamide modified graphene oxide, 0.5-2.5 parts of carbamate accelerator, 0.5-2 parts of CZ accelerator, 0.5-3 parts of DTDC accelerator, 0.5-3 parts of TBzTD-70 accelerator and 1.5-5 parts of anti-aging agent.
The preparation method of the ethylene propylene diene monomer rubber compound comprises the following steps:
step 1: firstly weighing 100 parts of ethylene propylene diene monomer, 3-10 parts of hyperbranched phosphamide modified graphene oxide, 20-30 parts of silicon rubber and 0.5-2 parts of stearic acid as main materials, mixing the main materials with 1.5-5 parts of anti-aging agent, 10-15 parts of solubilizer and 0.5-3 parts of DTDC promoter for 2-4min at the mixing temperature of 70-75 ℃, adding 10-30 parts of N330 carbon black, 3-10 parts of zinc oxide, 2-4 parts of modifier, 10-25 parts of 2280 paraffin oil and 90-120 parts of reinforcing agent, and further mixing for 1-2min after raising the temperature to 78-83 ℃; then adding 1-5 parts of polyethylene glycol, 2-5 parts of organic peroxide cross-linking agent and 0.5-2 parts of CZ accelerator, uniformly mixing at the mixing temperature of 105 ℃ and 110 ℃, and discharging to obtain the prepared material.
Step 2: and (2) adding 1-3 parts of vulcanizing agent, 0.5-2.5 parts of carbamate accelerator and 0.5-3 parts of TBzTD-70 accelerator into the material prepared in the step (1) for vulcanizing at the vulcanization temperature of 158-163 ℃ for 1-2min, discharging and cooling to obtain the ethylene propylene diene monomer rubber compound.
The invention also has the following additional technical features:
the technical scheme of the invention is further specifically optimized as follows: the composition comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 3 parts of zinc oxide, 0.5 part of stearic acid, 1 part of polyethylene glycol, 1 part of vulcanizing agent, 10 parts of N330 carbon black, 10 parts of 2280 paraffin oil, 20 parts of silicon rubber, 2 parts of modifier, 10 parts of solubilizer, 90 parts of reinforcing agent, 2 parts of organic peroxide cross-linking agent, 3 parts of hyperbranched phosphamide modified graphene oxide, 0.5 part of carbamate accelerator, 0.5 part of CZ accelerator, 0.5 part of DTDC accelerator, 0.5 part of TBzTD-70 accelerator and 1.5 parts of anti-aging agent.
The technical scheme of the invention is further specifically optimized as follows: the composition comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 10 parts of zinc oxide, 2 parts of stearic acid, 5 parts of polyethylene glycol, 3 parts of a vulcanizing agent, 30 parts of N330 carbon black, 25 parts of 2280 paraffin oil, 30 parts of silicone rubber, 4 parts of a modifier, 15 parts of a solubilizer, 120 parts of a reinforcing agent, 5 parts of an organic peroxide cross-linking agent, 10 parts of hyperbranched phosphoramide modified graphene oxide, 2.5 parts of a carbamate accelerator, 2 parts of a CZ accelerator, 3 parts of a DTDC accelerator, 3 parts of a TBzTD-70 accelerator and 5 parts of an anti-aging agent.
The technical scheme of the invention is further specifically optimized as follows: the composition comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 6 parts of zinc oxide, 1 part of stearic acid, 3 parts of polyethylene glycol, 2 parts of a vulcanizing agent, 20 parts of N330 carbon black, 12 parts of 2280 paraffin oil, 25 parts of silicone rubber, 3 parts of a modifier, 12 parts of a solubilizer, 105 parts of a reinforcing agent, 3 parts of an organic peroxide crosslinking agent, 6 parts of hyperbranched phosphoramide modified graphene oxide, 1 part of a carbamate accelerator, 1 part of a CZ accelerator, 2 parts of a DTDC accelerator, 2 parts of a TBzTD-70 accelerator and 3 parts of an anti-aging agent.
Compared with the prior art, the invention has the advantages that: the ethylene propylene diene rubber does not generate carcinogenic substances such as dimethyl nitrosamine and the like in the production and use processes, and effectively reduces the damage degree of rubber in the ethylene propylene diene rubber to polyester wires, so that the rubber material has better heat-resistant stability, excellent low-temperature performance and higher physical and mechanical properties. The service life of the ethylene propylene diene monomer is prolonged. The preparation method of the ethylene propylene diene monomer provided by the invention is simple and easy to realize, can realize mass production, and is beneficial to industrial popularization.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a preparation method of ethylene propylene diene monomer rubber of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings, in order that the present disclosure may be more fully understood and fully conveyed to those skilled in the art. While the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the invention is not limited to the embodiments set forth herein.
An ethylene propylene diene monomer rubber compound comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 3-10 parts of zinc oxide, 0.5-2 parts of stearic acid, 1-5 parts of polyethylene glycol, 1-3 parts of vulcanizing agent, 10-30 parts of N330 carbon black, 10-25 parts of 2280 paraffin oil, 20-30 parts of silicone rubber, 2-4 parts of modifier, 10-15 parts of solubilizer, 90-120 parts of reinforcing agent, 2-5 parts of organic peroxide cross-linking agent, 3-10 parts of hyperbranched phosphamide modified graphene oxide, 0.5-2.5 parts of carbamate accelerator, 0.5-2 parts of CZ accelerator, 0.5-3 parts of DTDC accelerator, 0.5-3 parts of TBzTD-70 accelerator and 1.5-5 parts of anti-aging agent.
The preparation method of the ethylene propylene diene monomer rubber compound comprises the following steps:
step 1: firstly weighing 100 parts of ethylene propylene diene monomer, 3-10 parts of hyperbranched phosphamide modified graphene oxide, 20-30 parts of silicon rubber and 0.5-2 parts of stearic acid as main materials, mixing the main materials with 1.5-5 parts of anti-aging agent, 10-15 parts of solubilizer and 0.5-3 parts of DTDC promoter for 2-4min at the mixing temperature of 70-75 ℃, adding 10-30 parts of N330 carbon black, 3-10 parts of zinc oxide, 2-4 parts of modifier, 10-25 parts of 2280 paraffin oil and 90-120 parts of reinforcing agent, and further mixing for 1-2min after raising the temperature to 78-83 ℃; then adding 1-5 parts of polyethylene glycol, 2-5 parts of organic peroxide cross-linking agent and 0.5-2 parts of CZ accelerator, uniformly mixing at the mixing temperature of 105 ℃ and 110 ℃, and discharging to obtain the prepared material.
Step 2: and (2) adding 1-3 parts of vulcanizing agent, 0.5-2.5 parts of carbamate accelerator and 0.5-3 parts of TBzTD-70 accelerator into the material prepared in the step (1) for vulcanizing at the vulcanization temperature of 158-163 ℃ for 1-2min, discharging and cooling to obtain the ethylene propylene diene monomer rubber compound.
Example 1
The composition comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 3 parts of zinc oxide, 0.5 part of stearic acid, 1 part of polyethylene glycol, 1 part of vulcanizing agent, 10 parts of N330 carbon black, 10 parts of 2280 paraffin oil, 20 parts of silicon rubber, 2 parts of modifier, 10 parts of solubilizer, 90 parts of reinforcing agent, 2 parts of organic peroxide cross-linking agent, 3 parts of hyperbranched phosphamide modified graphene oxide, 0.5 part of carbamate accelerator, 0.5 part of CZ accelerator, 0.5 part of DTDC accelerator, 0.5 part of TBzTD-70 accelerator and 1.5 parts of anti-aging agent.
The preparation method of the ethylene propylene diene monomer rubber compound of example 1 includes:
step 1: firstly weighing ethylene propylene diene monomer, hyperbranched phosphoramide modified graphene oxide, silicon rubber and stearic acid as main materials in parts by weight, mixing the main materials with an anti-aging agent, a solubilizer and a DTDC accelerator for 3min at the mixing temperature of 70 ℃, raising the temperature to 78 ℃, and then adding N330 carbon black, zinc oxide, a modifier, 2280 paraffin oil and a reinforcing agent to continue mixing for 1 min; and then adding polyethylene glycol, an organic peroxide crosslinking agent and a CZ accelerant, uniformly mixing at the mixing temperature of 105 ℃, and discharging to obtain the prepared material.
Step 2: and (3) adding a vulcanizing agent, a carbamate accelerator and a TBzTD-70 accelerator into the material prepared in the step (1) for vulcanization, wherein the vulcanization temperature is 158 ℃, the vulcanization time is 1min, discharging and cooling to obtain the ethylene propylene diene monomer rubber compound.
Example 2
The composition comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 10 parts of zinc oxide, 2 parts of stearic acid, 5 parts of polyethylene glycol, 3 parts of a vulcanizing agent, 30 parts of N330 carbon black, 25 parts of 2280 paraffin oil, 30 parts of silicone rubber, 4 parts of a modifier, 15 parts of a solubilizer, 120 parts of a reinforcing agent, 5 parts of an organic peroxide cross-linking agent, 10 parts of hyperbranched phosphoramide modified graphene oxide, 2.5 parts of a carbamate accelerator, 2 parts of a CZ accelerator, 3 parts of a DTDC accelerator, 3 parts of a TBzTD-70 accelerator and 5 parts of an anti-aging agent.
The preparation method of the ethylene propylene diene monomer rubber compound of example 2 includes:
step 1: firstly weighing ethylene propylene diene monomer, hyperbranched phosphamide modified graphene oxide, silicon rubber and stearic acid as main materials in parts by weight, mixing the main materials with an anti-aging agent, a solubilizer and a DTDC accelerator for 4min at the mixing temperature of 75 ℃, raising the temperature to 83 ℃, and then adding N330 carbon black, zinc oxide, a modifier, 2280 paraffin oil and a reinforcing agent to continue mixing for 2 min; and then adding polyethylene glycol, an organic peroxide crosslinking agent and a CZ accelerant, uniformly mixing at the mixing temperature of 110 ℃, and discharging to obtain the prepared material.
Step 2: and (2) adding a vulcanizing agent, a carbamate accelerator and a TBzTD-70 accelerator into the material prepared in the step (1) for vulcanization, wherein the vulcanization temperature is 163 ℃, the vulcanization time is 2min, discharging and cooling to obtain the ethylene propylene diene monomer rubber compound.
Example 3
The composition comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 6 parts of zinc oxide, 1 part of stearic acid, 3 parts of polyethylene glycol, 2 parts of a vulcanizing agent, 20 parts of N330 carbon black, 12 parts of 2280 paraffin oil, 25 parts of silicone rubber, 3 parts of a modifier, 12 parts of a solubilizer, 105 parts of a reinforcing agent, 3 parts of an organic peroxide crosslinking agent, 6 parts of hyperbranched phosphoramide modified graphene oxide, 1 part of a carbamate accelerator, 1 part of a CZ accelerator, 2 parts of a DTDC accelerator, 2 parts of a TBzTD-70 accelerator and 3 parts of an anti-aging agent.
The preparation method of the ethylene propylene diene monomer rubber compound of the embodiment 3 comprises the following steps:
step 1: firstly weighing ethylene propylene diene monomer, hyperbranched phosphamide modified graphene oxide, silicon rubber and stearic acid as main materials in parts by weight, mixing the main materials with an anti-aging agent, a solubilizer and a DTDC accelerator for 3min at 72 ℃, raising the temperature to 80 ℃, and then adding N330 carbon black, zinc oxide, a modifier, 2280 paraffin oil and a reinforcing agent to continue mixing for 2 min; and then adding polyethylene glycol, an organic peroxide crosslinking agent and a CZ accelerant, uniformly mixing at the mixing temperature of 108 ℃, and discharging to obtain the prepared material.
Step 2: and (2) adding a vulcanizing agent, a carbamate accelerator and a TBzTD-70 accelerator into the material prepared in the step (1) for vulcanization, wherein the vulcanization temperature is 160 ℃, the vulcanization time is 2min, discharging and cooling to obtain the ethylene propylene diene monomer rubber compound.
The ethylene propylene diene rubber does not generate carcinogenic substances such as dimethyl nitrosamine and the like in the production and use processes, and effectively reduces the damage degree of rubber in the ethylene propylene diene rubber to polyester wires, so that the rubber material has better heat-resistant stability, excellent low-temperature performance and higher physical and mechanical properties. The service life of the ethylene propylene diene monomer is prolonged. The preparation method of the ethylene propylene diene monomer provided by the invention is simple and easy to realize, can realize mass production, and is beneficial to industrial popularization.
Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.
Claims (5)
1. The ethylene propylene diene monomer rubber compound is characterized by comprising the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 3-10 parts of zinc oxide, 0.5-2 parts of stearic acid, 1-5 parts of polyethylene glycol, 1-3 parts of vulcanizing agent, 10-30 parts of N330 carbon black, 10-25 parts of 2280 paraffin oil, 20-30 parts of silicone rubber, 2-4 parts of modifier, 10-15 parts of solubilizer, 90-120 parts of reinforcing agent, 2-5 parts of organic peroxide cross-linking agent, 3-10 parts of hyperbranched phosphamide modified graphene oxide, 0.5-2.5 parts of carbamate accelerator, 0.5-2 parts of CZ accelerator, 0.5-3 parts of DTDC accelerator, 0.5-3 parts of TBzTD-70 accelerator and 1.5-5 parts of anti-aging agent.
2. The ethylene propylene diene monomer rubber compound as claimed in claim 1, wherein the composition comprises, in parts by weight: 100 parts of ethylene propylene diene monomer, 3 parts of zinc oxide, 0.5 part of stearic acid, 1 part of polyethylene glycol, 1 part of vulcanizing agent, 10 parts of N330 carbon black, 10 parts of 2280 paraffin oil, 20 parts of silicon rubber, 2 parts of modifier, 10 parts of solubilizer, 90 parts of reinforcing agent, 2 parts of organic peroxide cross-linking agent, 3 parts of hyperbranched phosphamide modified graphene oxide, 0.5 part of carbamate accelerator, 0.5 part of CZ accelerator, 0.5 part of DTDC accelerator, 0.5 part of TBzTD-70 accelerator and 1.5 parts of anti-aging agent.
3. The ethylene propylene diene monomer rubber compound as claimed in claim 1, wherein the composition comprises, in parts by weight: 100 parts of ethylene propylene diene monomer, 10 parts of zinc oxide, 2 parts of stearic acid, 5 parts of polyethylene glycol, 3 parts of a vulcanizing agent, 30 parts of N330 carbon black, 25 parts of 2280 paraffin oil, 30 parts of silicone rubber, 4 parts of a modifier, 15 parts of a solubilizer, 120 parts of a reinforcing agent, 5 parts of an organic peroxide cross-linking agent, 10 parts of hyperbranched phosphoramide modified graphene oxide, 2.5 parts of a carbamate accelerator, 2 parts of a CZ accelerator, 3 parts of a DTDC accelerator, 3 parts of a TBzTD-70 accelerator and 5 parts of an anti-aging agent.
4. The ethylene propylene diene monomer rubber compound as claimed in claim 1, wherein the composition comprises, in parts by weight: 100 parts of ethylene propylene diene monomer, 6 parts of zinc oxide, 1 part of stearic acid, 3 parts of polyethylene glycol, 2 parts of a vulcanizing agent, 20 parts of N330 carbon black, 12 parts of 2280 paraffin oil, 25 parts of silicone rubber, 3 parts of a modifier, 12 parts of a solubilizer, 105 parts of a reinforcing agent, 3 parts of an organic peroxide crosslinking agent, 6 parts of hyperbranched phosphoramide modified graphene oxide, 1 part of a carbamate accelerator, 1 part of a CZ accelerator, 2 parts of a DTDC accelerator, 2 parts of a TBzTD-70 accelerator and 3 parts of an anti-aging agent.
5. The ethylene-propylene-diene monomer rubber mix as claimed in claim 1, characterized in that the method for the preparation of the ethylene-propylene-diene monomer rubber mix comprises:
step 1: firstly weighing 100 parts of ethylene propylene diene monomer, 3-10 parts of hyperbranched phosphamide modified graphene oxide, 20-30 parts of silicon rubber and 0.5-2 parts of stearic acid as main materials, mixing the main materials with 1.5-5 parts of anti-aging agent, 10-15 parts of solubilizer and 0.5-3 parts of DTDC promoter for 2-4min at the mixing temperature of 70-75 ℃, adding 10-30 parts of N330 carbon black, 3-10 parts of zinc oxide, 2-4 parts of modifier, 10-25 parts of 2280 paraffin oil and 90-120 parts of reinforcing agent, and further mixing for 1-2min after raising the temperature to 78-83 ℃; then adding 1-5 parts of polyethylene glycol, 2-5 parts of organic peroxide cross-linking agent and 0.5-2 parts of CZ promoter, uniformly mixing at the mixing temperature of 105-;
step 2: and (2) adding 1-3 parts of vulcanizing agent, 0.5-2.5 parts of carbamate accelerator and 0.5-3 parts of TBzTD-70 accelerator into the material prepared in the step (1) for vulcanizing at the vulcanization temperature of 158-163 ℃ for 1-2min, discharging and cooling to obtain the ethylene propylene diene monomer rubber compound.
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| CN201910290578.8A CN111808374A (en) | 2019-04-11 | 2019-04-11 | Ethylene propylene diene monomer rubber compound |
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| CN115505214A (en) * | 2022-10-17 | 2022-12-23 | 惠州市翔泰橡塑制品有限公司 | Modified ethylene propylene diene monomer and preparation method thereof |
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| CN115505214A (en) * | 2022-10-17 | 2022-12-23 | 惠州市翔泰橡塑制品有限公司 | Modified ethylene propylene diene monomer and preparation method thereof |
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Application publication date: 20201023 |