CN118126451A - Ethylene propylene diene monomer composite material and preparation method and application thereof - Google Patents
Ethylene propylene diene monomer composite material and preparation method and application thereof Download PDFInfo
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- CN118126451A CN118126451A CN202410311394.6A CN202410311394A CN118126451A CN 118126451 A CN118126451 A CN 118126451A CN 202410311394 A CN202410311394 A CN 202410311394A CN 118126451 A CN118126451 A CN 118126451A
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- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 158
- 239000002131 composite material Substances 0.000 title claims abstract description 128
- 238000002360 preparation method Methods 0.000 title claims description 20
- 238000004513 sizing Methods 0.000 claims abstract description 104
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229920005989 resin Polymers 0.000 claims abstract description 69
- 239000011347 resin Substances 0.000 claims abstract description 69
- 239000000945 filler Substances 0.000 claims abstract description 66
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 48
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 48
- 229920001194 natural rubber Polymers 0.000 claims abstract description 48
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 47
- 239000003208 petroleum Substances 0.000 claims abstract description 47
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 44
- 239000011787 zinc oxide Substances 0.000 claims abstract description 35
- 239000006229 carbon black Substances 0.000 claims abstract description 32
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 30
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004200 microcrystalline wax Substances 0.000 claims abstract description 30
- 235000019808 microcrystalline wax Nutrition 0.000 claims abstract description 30
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 30
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000008117 stearic acid Substances 0.000 claims abstract description 30
- 239000011593 sulfur Substances 0.000 claims abstract description 30
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 30
- 239000010692 aromatic oil Substances 0.000 claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 118
- 239000004927 clay Substances 0.000 claims description 101
- 238000003756 stirring Methods 0.000 claims description 46
- 229920001971 elastomer Polymers 0.000 claims description 33
- 239000005060 rubber Substances 0.000 claims description 33
- 238000004073 vulcanization Methods 0.000 claims description 25
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 19
- 229920001568 phenolic resin Polymers 0.000 claims description 19
- 239000005011 phenolic resin Substances 0.000 claims description 19
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 18
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 11
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 9
- 238000001354 calcination Methods 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 9
- UEZWYKZHXASYJN-UHFFFAOYSA-N cyclohexylthiophthalimide Chemical group O=C1C2=CC=CC=C2C(=O)N1SC1CCCCC1 UEZWYKZHXASYJN-UHFFFAOYSA-N 0.000 claims description 7
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- 239000002904 solvent Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
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- 239000003963 antioxidant agent Substances 0.000 description 8
- 230000003078 antioxidant effect Effects 0.000 description 8
- 239000007822 coupling agent Substances 0.000 description 8
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 8
- 230000032683 aging Effects 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 229920003051 synthetic elastomer Polymers 0.000 description 5
- 239000005061 synthetic rubber Substances 0.000 description 5
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 4
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- -1 ethylene, propylene Chemical group 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 description 1
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Abstract
The ethylene propylene diene monomer composite material provided by the invention comprises the following components in parts by mass: 1 to 10 parts of C5 petroleum resin, 35 to 40 parts of natural rubber, 60 to 65 parts of ethylene propylene diene monomer, 50 to 55 parts of carbon black, 5 to 15 parts of environment-friendly aromatic oil, 1 to 5 parts of zinc oxide, 1 to 5 parts of stearic acid, 3.5 to 5 parts of anti-aging agent, 1 to 5 parts of microcrystalline wax, 20 to 25 parts of functional resin, 15 to 25 parts of filler, 1 to 5 parts of sulfur, 1 to 5 parts of accelerator and 0.5 to 1 part of scorch retarder. The C5 petroleum resin can be well compatible with the natural rubber and the ethylene propylene diene monomer, is favorable for the follow-up melt viscosity of a follow-up sizing system to be moderate, is favorable for assisting the mixing and dispersion of fillers in sizing by compounding and adding environment-friendly aromatic oil, is favorable for the rapid extrusion of the ethylene propylene diene monomer composite sizing, and is also favorable for preparing an ethylene propylene diene monomer composite finished product with high surface smoothness and smooth surface.
Description
Technical Field
The invention relates to the technical field of polymer composite materials, in particular to an ethylene propylene diene monomer composite material and a preparation method and application thereof.
Background
The ethylene propylene diene monomer is a copolymer of ethylene, propylene and a small amount of non-conjugated diene, is one of ethylene propylene rubbers, has excellent ozone resistance, heat resistance, weather resistance and other ageing resistance, and is commonly used in the fields of automobile parts, waterproof materials for buildings, wire and cable jackets, heat-resistant rubber pipes, adhesive tapes, automobile sealing parts and the like, and has wide application.
However, when the ethylene propylene diene monomer is applied, the ethylene propylene diene monomer is usually compounded with other materials, for example, fillers are added to enhance mechanical strength, and when the ethylene propylene diene monomer is compounded with other materials, the problem of poor compatibility exists, the prepared ethylene propylene diene monomer composite is easy to cause extrusion difficulty, and the prepared ethylene propylene diene monomer composite is poor in extrusion smoothness, so that the surface of the prepared ethylene propylene diene monomer composite product is strong in granular feel, has a certain micropores and influences the quality of the ethylene propylene diene monomer composite product, and therefore, the problem of how to prepare the ethylene propylene diene monomer composite material with high smoothness and smooth surface is to be solved for the rubber industry.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an ethylene propylene diene monomer composite material and a preparation method and application thereof.
The aim of the invention is realized by the following technical scheme:
The ethylene propylene diene monomer rubber composite material comprises the following components in parts by mass: 1 to 10 parts of C5 petroleum resin, 35 to 40 parts of natural rubber, 60 to 65 parts of ethylene propylene diene monomer, 50 to 55 parts of carbon black, 5 to 15 parts of environment-friendly aromatic oil, 1 to 5 parts of zinc oxide, 1 to 5 parts of stearic acid, 3.5 to 5 parts of anti-aging agent, 1 to 5 parts of microcrystalline wax, 20 to 25 parts of functional resin, 15 to 25 parts of filler, 1 to 5 parts of sulfur, 1 to 5 parts of accelerator and 0.5 to 1 part of scorch retarder.
In one embodiment, the functional resin is a phenolic resin.
In one embodiment, the anti-aging agent comprises 6PPD, TMQ, and BLE.
In one embodiment, the mass ratio of the 6PPD, the TMQ, and the BLE is 4 to 5:5 to 7:18 to 24.
In one embodiment, the promoter comprises at least one of NS and CZ.
In one embodiment, the filler is a modified clay.
In one embodiment, the method for treating the modified clay comprises the following steps:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
In one embodiment, the scorch retarder is N-cyclohexylthio-phthalimide.
A preparation method of an ethylene propylene diene monomer composite material comprises the following steps:
Providing 1 to 10 parts by mass of C5 petroleum resin, 35 to 40 parts by mass of natural rubber, 60 to 65 parts by mass of ethylene propylene diene monomer, 50 to 55 parts by mass of carbon black, 5 to 15 parts by mass of environment-friendly aromatic oil, 1 to 5 parts by mass of zinc oxide, 1 to 5 parts by mass of stearic acid, 3.5 to 5 parts by mass of anti-aging agent, 1 to 5 parts by mass of microcrystalline wax, 20 to 25 parts by mass of functional resin, 15 to 25 parts by mass of filler, 1 to 5 parts by mass of sulfur, 1 to 5 parts by mass of accelerator and 0.5 to 1 part by mass of scorch retarder;
adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material;
Adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 110-120 ℃, then injecting the environment-friendly aromatic hydrocarbon oil, and controlling the banburying temperature to be 130-140 ℃ to obtain a second-stage sizing material;
Adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to be 130-135 ℃ to obtain three-stage sizing material;
Adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to be 95-100 ℃ to obtain a final-section sizing material;
and adding the final section of sizing material into a double-screw extruder, performing extrusion operation to obtain an extruded composite material, and performing vulcanization operation to obtain the ethylene propylene diene monomer composite material.
The ethylene propylene diene monomer rubber composite material is applied to the preparation of rubber tubes.
Compared with the prior art, the invention has at least the following advantages:
according to the ethylene propylene diene monomer composite material, the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer are adopted as the matrixes, and the C5 petroleum resin, the natural rubber and the synthetic rubber have good compatibility, that is, the C5 petroleum resin can be well compatible with the natural rubber and the ethylene propylene diene monomer, the subsequent melt viscosity of a subsequent sizing system is moderate, extrusion stripping of the ethylene propylene diene monomer composite material is facilitated, meanwhile, the environment-friendly aromatic hydrocarbon oil is compounded and added, the environment-friendly aromatic hydrocarbon oil has good compatibility with a rubber material, and has the advantages of high temperature resistance, low volatility and the like, the processability of the rubber can be remarkably improved, the weather resistance and the oxidation resistance of the prepared ethylene propylene diene monomer composite material can be enhanced, the friction resistance and the ageing resistance are improved, meanwhile, the filler is well dispersed in the sizing system, the filler is uniformly dispersed in the sizing system is facilitated, the effect of enhancing the mechanical strength of the subsequent sizing system is guaranteed, the aggregation distribution of filler particles is avoided, the surface of the ethylene propylene diene monomer composite material is enabled to have particle feel, and the surface of the ethylene propylene diene monomer composite material is facilitated to be extruded rapidly, and the surface of the ethylene propylene diene monomer composite material is high in smoothness and the surface is prepared.
Drawings
Fig. 1 is a flowchart of a preparation method of an ethylene propylene diene monomer rubber composite material according to an embodiment.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
An embodiment, an ethylene propylene diene monomer composite material comprises the following components in parts by mass: 1 to 10 parts of C5 petroleum resin, 35 to 40 parts of natural rubber, 60 to 65 parts of ethylene propylene diene monomer rubber, 50 to 55 parts of carbon black, 5 to 15 parts of environment-friendly aromatic oil, 1 to 5 parts of zinc oxide, 1 to 5 parts of stearic acid, 3.5 to 5 parts of anti-aging agent, 1 to 5 parts of microcrystalline wax, 20 to 25 parts of functional resin, 15 to 25 parts of filler, 1 to 5 parts of sulfur, 1 to 5 parts of accelerator and 0.5 to 1 part of scorch retarder.
It should be noted that, C5 petroleum resin becomes carbon five petroleum resin too, C5 petroleum resin has the characteristics of high peeling adhesion strength, good quick adhesion, stable adhesion performance, moderate melt viscosity, good heat resistance, good compatibility with high polymer matrix, low price, and the like, starts to gradually replace natural tackifying resin, widely applied in industrial production, natural rubber is the most widely applied rubber material, low price, ethylene propylene diene monomer rubber has excellent ozone resistance, heat resistance, weather resistance and other ageing resistance, functional resin can be added according to specific production requirements, thereby enhancing the performance of the ethylene propylene diene monomer rubber composite material finished product, and additives such as carbon black, environment-friendly aromatic hydrocarbon oil, zinc oxide, stearic acid, anti-aging agent, microcrystalline wax, filler, sulfur, accelerator, anti-scorching agent and the like are added, thereby being beneficial to preparing the ethylene propylene diene monomer rubber composite material finished product with high mechanical strength, in particular, adopting C5 petroleum resin, natural rubber and ethylene propylene diene monomer rubber as matrix, C5 petroleum resin and natural rubber and synthetic rubber have good performances, that is, the C5 petroleum rubber and ethylene propylene diene monomer rubber can be well compatible with natural rubber, the following the materials can be prepared, the following the materials have the advantages of improving the weather resistance, the anti-aging resistance, the composite material can be greatly improved, the anti-aging resistance is good, the composite material can be prepared by the following the environment-friendly composite material is greatly has the advantages, the good anti-aging resistance, the anti-aging performance is greatly is improved, and the anti-aging performance is well, and the composite material is well has the anti-aging, and has good anti-aging performance is well, and is prepared, meanwhile, the method is favorable for helping the mixing and dispersing of the filler in the sizing material and the filler well dispersing in the sizing material system, so that the filler is ensured to be uniformly dispersed in the sizing material system, the effect of well reinforcing the mechanical strength of the sizing material can be achieved, the aggregation and the distribution of filler particles are avoided, the particle feeling on the surface of the finished product of the ethylene propylene diene monomer composite material is avoided, the rapid extrusion of the ethylene propylene diene monomer composite material is facilitated, and the finished product of the ethylene propylene diene monomer composite material with high surface smoothness and smooth surface is prepared.
In one embodiment, the functional resin is a phenolic resin. It can be understood that the phenolic resin is colorless or brown transparent solid, and has the characteristics of high temperature resistance, acid resistance, heat resistance and the like, and the phenolic resin is added into the ethylene-propylene-diene monomer rubber composite material system, so that the functions of a reinforcing agent, a plasticizer, a dispersing agent and the like are realized, the hardness, the tensile strength, the wear resistance and the like of the ethylene-propylene-diene monomer rubber composite material are improved, and the adhesive property between a sizing material and metal can be improved.
In one embodiment, the anti-aging agent comprises 6PPD (N- (1, 3-Dimethylbutyl) -N '-phenyl-1,4-PHENYLENEDIAMIN, N- (1, 3-dimethylbutyl) -N' -phenyl-p-phenylenediamine), TMQ, and BLE. It can be understood that the anti-aging agent is compounded by 6PPD, TMQ and BLE, specifically, the 6PPD is a common anti-aging agent for rubber, and is suitable for natural rubber and synthetic rubber, and the TMQ and BLE are also common anti-aging agents, and the 6PPD, the TMQ and the BLE are compounded to produce a synergistic effect, so that the anti-aging agent has a good effect, and is beneficial to greatly improving the durability and the service life of the ethylene propylene diene monomer rubber composite material. In this embodiment, the mass ratio of the 6PPD, the TMQ, and the BLE is 4 to 5:5 to 7:18 to 24. By strictly limiting the dosages of the antioxidant 6PPD, TMQ and BLE, the optimal synergistic effect can be achieved, and the prepared ethylene propylene diene monomer composite material has optimal durability and service life.
In one embodiment, the promoter comprises at least one of NS and CZ. It can be understood that NS and CZ are commonly used induction vulcanization accelerators, NS is N-tert-butyl-2-benzothiazole sulfenamide, which can play a good vulcanization acceleration role, CZ is a highly active post-effect accelerator, which has excellent scorch resistance, safe processing and short vulcanization time, is favorable for improving vulcanization efficiency, and can achieve a good vulcanization acceleration effect by adopting NS or CZ as the accelerator.
In one embodiment, the filler is a modified clay. It can be understood that the filler adopts modified clay, the clay is a common filler, the filler is easy to obtain and low in cost, in the embodiment, the clay is modified, the compatibility of the clay and an ethylene propylene diene monomer rubber composite material system is improved, and in the embodiment, the treatment method of the modified clay is as follows:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
It should be noted that, because the clay is a particulate matter and has a larger density and a larger weight, and is not easy to disperse in the rubber organic system, the filler is usually made of clay as the filler, so as to improve the mechanical strength of the rubber material, and the clay is easy to aggregate and unevenly mixed when being mixed with the rubber organic system, therefore, the clay has a larger density and larger mass, when the rubber material is formed as a base, the clay is easy to extrude to the surface of the rubber material under the action of the spiral force of the extrusion screw, so that the surface of the rubber material has a granular sense, the quality of the rubber finished product is influenced, in the embodiment, the clay is firstly calcined to be expanded into a porous structure, so as to be beneficial to reducing the density of the clay, and the porous structure greatly improves the surface area of the clay, and then the calcined clay is soaked in the mercaptosilane coupling agent, at this moment, so as to be beneficial to greatly increase the contact area of the mercaptosilane coupling agent, the mercaptosilane coupling agent can be well infiltrated into the clay, and is easy to calcine the mercaptosilane coupling agent, namely, so as to better coat the surface of the natural rubber material, and the porous solvent is better coated on the surface of the clay, and the surface of the natural material is better coated by the porous solvent, and the porous solvent is better, and the surface of the ternary silane is better formed after the clay is better, and the porous solvent is better coated by the clay is better through the porous solvent, and the clay is better coated on the surface of the porous solvent, and is better coated by the surface of the clay, and is better coated by the surface of the catalyst, thereby being beneficial to greatly improving the surface finish and smoothness of the ethylene propylene diene monomer composite material finished product and greatly improving the quality of the ethylene propylene diene monomer composite material finished product while preparing the ethylene propylene diene monomer composite material finished product with good mechanical strength.
In one embodiment, the scorch retarder is N-cyclohexylthio-phthalimide. It can be understood that the N-cyclohexyl thiophthalimide is a common scorch retarder, is beneficial to controlling the vulcanization reaction, avoids the situation of local scorching of the ethylene propylene diene monomer composite material in the vulcanization process, ensures the vulcanization effect, and is beneficial to ensuring the quality of the finished product of the ethylene propylene diene monomer composite material.
Referring to fig. 1, in an embodiment, the present invention further provides a preparation method of the ethylene propylene diene monomer composite material, including the following steps:
S110, providing 1 to 10 parts by mass of C5 petroleum resin, 35 to 40 parts by mass of natural rubber, 60 to 65 parts by mass of ethylene propylene diene monomer rubber, 50 to 55 parts by mass of carbon black, 5 to 15 parts by mass of environment-friendly aromatic hydrocarbon oil, 1 to 5 parts by mass of zinc oxide, 1 to 5 parts by mass of stearic acid, 3.5 to 5 parts by mass of anti-aging agent, 1 to 5 parts by mass of microcrystalline wax, 20 to 25 parts by mass of functional resin, 15 to 25 parts by mass of filler, 1 to 5 parts by mass of sulfur, 1 to 5 parts by mass of accelerator and 0.5 to 1 part by mass of scorch retarder.
The weighing device is used for accurately weighing all materials according to parts by mass, so that the proportion of all materials is moderate, the dosage is moderate, and the normal operation of the subsequent preparation of the ethylene propylene diene monomer rubber composite material is ensured.
And S120, adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material.
The method is characterized in that three base materials of C5 petroleum resin, natural rubber and ethylene propylene diene monomer are firstly added into an internal mixer for internal mixing, so that the petroleum resin, the natural rubber and the ethylene propylene diene monomer are uniformly mixed together to form a uniform base material system, and a section of sizing material is obtained.
S130, adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 110-120 ℃, then injecting the environment-friendly aromatic hydrocarbon oil, and controlling the banburying temperature to be 130-140 ℃ to obtain the second-stage sizing material.
The carbon black and the filler are added into the first-stage sizing material, the carbon black and the filler have a uniform granular structure, the mechanical strength of the sizing material can be enhanced, and the lubricating effect can be achieved by adding the environment-friendly aromatic oil, so that the carbon black and the filler can be better dispersed in a sizing material system, and the preparation of the second-stage sizing material with uniform sizing material is facilitated.
And S140, adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to be 130-135 ℃ to obtain the three-stage sizing material.
The ethylene propylene diene monomer composite material product with better performance and quality can be prepared by continuously adding assistants such as zinc oxide, stearic acid, an anti-aging agent, microcrystalline wax, functional resin and the like into the two-stage sizing material to further stir and banburying, so that the performance of the sizing material can be further improved.
And S150, adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to be 95-100 ℃ to obtain the final-section sizing material.
The sulfur is added as the vulcanizing agent, the accelerator and the scorch retarder are added, and the banburying is carried out, so that the vulcanizing reaction auxiliary agents such as the vulcanizing agent, the accelerator and the scorch retarder are uniformly mixed with the sizing material, and the normal proceeding of the subsequent vulcanizing reaction is ensured.
And S160, adding the final-stage sizing material into a double-screw extruder, performing extrusion operation to obtain an extrusion composite material, and performing vulcanization operation to obtain the ethylene propylene diene monomer composite material.
The final section of sizing material is extruded and molded through a double screw extruder, and then vulcanized through a vulcanizing furnace to obtain the vulcanized sizing material, so as to obtain the ethylene propylene diene monomer composite material, wherein the ethylene propylene diene monomer composite material can be prepared into specific product shapes according to specific application requirements, the preparation method of the ethylene propylene diene monomer composite material has simple process, and C5 petroleum resin, natural rubber and ethylene propylene diene monomer are adopted as matrixes, the C5 petroleum resin has good compatibility with the natural rubber and synthetic rubber, that is, the C5 petroleum resin can be well compatible with the natural rubber and the ethylene propylene diene monomer, the subsequent melting viscosity of a subsequent sizing material system is moderate, the extrusion stripping of the ethylene propylene diene monomer composite material is facilitated, and meanwhile, the environment-friendly aromatic oil is added through compounding, the environment-friendly aromatic oil has good compatibility with rubber materials, has the advantages of high temperature resistance, low volatilization and the like, can obviously improve the processing performance of rubber, can enhance the weathering resistance and the oxidation resistance of the prepared ethylene propylene diene monomer composite material, and improves the abrasion resistance and the aging resistance, and simultaneously is beneficial to helping the mixing and the dispersion of fillers in a sizing material, and is beneficial to the good dispersion of the fillers in a sizing material system, thereby ensuring that the fillers are uniformly dispersed in the sizing material system, not only playing a role in enhancing the mechanical strength of the sizing material, but also avoiding the aggregation and the distribution of filler particles, avoiding the existence of granular feel on the surface of a finished product of the ethylene propylene diene monomer composite material, thereby being beneficial to the rapid extrusion of the ethylene propylene diene monomer composite material, and preparing the finished product of the ethylene propylene diene monomer composite material with high surface smoothness and smooth surface.
In one embodiment, the functional resin is a phenolic resin. It can be understood that, because zinc oxide is adopted as the hardening agent of the rubber material in the ethylene propylene diene monomer composite material system, phenolic resin can be compounded with zinc oxide, and the hardness of the ethylene propylene diene monomer composite material is improved, so that the ethylene propylene diene monomer composite material has excellent corrosion resistance, wear resistance, ductility and elongation, meanwhile, the rubber material system and zinc oxide which are metal matters are well compatible, the zinc oxide is uniformly dispersed in the ethylene propylene diene monomer composite material system, the condition that the zinc oxide is aggregated is avoided, and the particle feel on the surface of a finished product of the ethylene propylene diene monomer composite material is avoided, and the ethylene propylene diene monomer composite material with high smoothness and smooth surface is prepared, and the quality of the finished product is high.
In one embodiment, the anti-aging agent comprises 6PPD (N- (1, 3-Dimethylbutyl) -N '-phenyl-1,4-PHENYLENEDIAMIN, N- (1, 3-dimethylbutyl) -N' -phenyl-p-phenylenediamine), TMQ, and BLE. It can be understood that the anti-aging agent is compounded by 6PPD, TMQ and BLE, so that a synergistic effect is generated, the effect is good, and the durability and the service life of the ethylene propylene diene monomer rubber composite material are greatly improved. In this embodiment, the mass ratio of the 6PPD, the TMQ, and the BLE is 4 to 5:5 to 7:18 to 24. By strictly limiting the dosages of the antioxidant 6PPD, TMQ and BLE, the optimal synergistic effect can be achieved, and the prepared ethylene propylene diene monomer composite material has optimal durability and service life.
In one embodiment, the promoter comprises at least one of NS and CZ. It can be understood that NS and CZ are commonly used induction vulcanization accelerators, which can achieve good vulcanization acceleration effects, and CZ is a highly active post-effect accelerator, which has excellent scorch resistance, safe processing and short vulcanization time, is beneficial to improving vulcanization efficiency, and can achieve good vulcanization acceleration effects by adopting NS or CZ as the accelerator.
In one embodiment, the filler is a modified clay. It can be understood that in this embodiment, the clay is modified, which is favorable for improving the compatibility of the clay and the ethylene propylene diene monomer composite material system, and specifically, in this embodiment, the processing method of the modified clay is as follows:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
It should be noted that, because the clay is a particulate matter and has a larger density and a larger weight, and is not easy to disperse in the rubber organic system, the filler is usually made of clay as the filler, so as to improve the mechanical strength of the rubber material, and the clay is easy to aggregate and unevenly mixed when being mixed with the rubber organic system, therefore, the clay has a larger density and larger mass, when the rubber material is formed as a base, the clay is easy to extrude to the surface of the rubber material under the action of the spiral force of the extrusion screw, so that the surface of the rubber material has a granular sense, the quality of the rubber finished product is influenced, in the embodiment, the clay is firstly calcined to be expanded into a porous structure, so as to be beneficial to reducing the density of the clay, and the porous structure greatly improves the surface area of the clay, and then the calcined clay is soaked in the mercaptosilane coupling agent, at this moment, so as to be beneficial to greatly increase the contact area of the mercaptosilane coupling agent, the mercaptosilane coupling agent can be well infiltrated into the clay, and is easy to calcine the mercaptosilane coupling agent, namely, so as to better coat the surface of the natural rubber material, and the porous solvent is better coated on the surface of the clay, and the surface of the natural material is better coated by the porous solvent, and the porous solvent is better, and the surface of the ternary silane is better formed after the clay is better, and the porous solvent is better coated by the clay is better through the porous solvent, and the clay is better coated on the surface of the porous solvent, and is better coated by the surface of the clay, and is better coated by the surface of the catalyst, thereby being beneficial to greatly improving the surface finish and smoothness of the ethylene propylene diene monomer composite material finished product and greatly improving the quality of the ethylene propylene diene monomer composite material finished product while preparing the ethylene propylene diene monomer composite material finished product with good mechanical strength.
In one embodiment, the scorch retarder is N-cyclohexylthio-phthalimide. It can be understood that the N-cyclohexyl thiophthalimide is a common scorch retarder, is beneficial to controlling the vulcanization reaction, avoids the situation of local scorching of the ethylene propylene diene monomer composite material in the vulcanization process, ensures the vulcanization effect, and is beneficial to ensuring the quality of the finished product of the ethylene propylene diene monomer composite material.
In one embodiment, the invention also provides application of the ethylene propylene diene monomer rubber composite material in preparation of rubber tubes. The ethylene propylene diene monomer composite material can be extruded into a tubular structure to prepare a rubber tube, and the prepared rubber tube has high surface smoothness, smooth surface and good product quality.
Compared with the prior art, the invention has at least the following advantages:
according to the ethylene propylene diene monomer composite material, the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer are adopted as the matrixes, and the C5 petroleum resin, the natural rubber and the synthetic rubber have good compatibility, that is, the C5 petroleum resin can be well compatible with the natural rubber and the ethylene propylene diene monomer, the subsequent melt viscosity of a subsequent sizing system is moderate, extrusion stripping of the ethylene propylene diene monomer composite material is facilitated, meanwhile, the environment-friendly aromatic hydrocarbon oil is compounded and added, the environment-friendly aromatic hydrocarbon oil has good compatibility with a rubber material, and has the advantages of high temperature resistance, low volatility and the like, the processability of the rubber can be remarkably improved, the weather resistance and the oxidation resistance of the prepared ethylene propylene diene monomer composite material can be enhanced, the friction resistance and the ageing resistance are improved, meanwhile, the filler is well dispersed in the sizing system, the filler is uniformly dispersed in the sizing system is facilitated, the effect of enhancing the mechanical strength of the subsequent sizing system is guaranteed, the aggregation distribution of filler particles is avoided, the surface of the ethylene propylene diene monomer composite material is enabled to have particle feel, and the surface of the ethylene propylene diene monomer composite material is facilitated to be extruded rapidly, and the surface of the ethylene propylene diene monomer composite material is high in smoothness and the surface is prepared.
The following is a detailed description of embodiments.
Example 1
In this embodiment, the ethylene propylene diene monomer composite material comprises the following components in parts by mass: 1 part of C5 petroleum resin, 35 parts of natural rubber, 60 parts of ethylene propylene diene monomer, 55 parts of carbon black, 15 parts of environment-friendly aromatic oil, 5 parts of zinc oxide, 5 parts of stearic acid, 5 parts of an anti-aging agent, 5 parts of microcrystalline wax, 25 parts of phenolic resin, 25 parts of filler, 5 parts of sulfur, 5 parts of an accelerator and 1 part of a scorch retarder;
the preparation method of the ethylene propylene diene monomer composite material provided by the embodiment comprises the following steps:
Providing 1 part of C5 petroleum resin, 35 parts of natural rubber, 60 parts of ethylene propylene diene monomer, 55 parts of carbon black, 15 parts of environment-friendly aromatic oil, 5 parts of zinc oxide, 5 parts of stearic acid, 5 parts of an anti-aging agent, 5 parts of microcrystalline wax, 25 parts of phenolic resin, 25 parts of filler, 5 parts of sulfur, 5 parts of an accelerator and 1 part of a scorch retarder according to parts by mass;
adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material;
adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 115 ℃, then injecting the environment-friendly aromatic oil, and controlling the banburying temperature to be 135 ℃ to obtain a second-stage sizing material;
Adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to 132 ℃ to obtain a three-stage sizing material;
adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to 98 ℃ to obtain a final-section sizing material;
adding the final section of sizing material into a double-screw extruder, performing extrusion operation to obtain an extrusion composite material, and performing vulcanization operation to obtain the ethylene propylene diene monomer rubber composite material of the embodiment 1;
in this embodiment, the antioxidant includes 6PPD, TMQ and BLE, and the mass ratio of 6PPD, TMQ and BLE is 4:5:24.
In this embodiment, the filler is modified clay, and the treatment method of the modified clay is as follows:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
Example 2
In this embodiment, the ethylene propylene diene monomer composite material comprises the following components in parts by mass: 5 parts of C5 petroleum resin, 38 parts of natural rubber, 62 parts of ethylene propylene diene monomer rubber, 53 parts of carbon black, 10 parts of environment-friendly aromatic oil, 3 parts of zinc oxide, 3 parts of stearic acid, 4 parts of an anti-aging agent, 3 parts of microcrystalline wax, 22 parts of phenolic resin, 20 parts of filler, 3 parts of sulfur, 3 parts of an accelerator and 0.8 part of a scorch retarder;
the preparation method of the ethylene propylene diene monomer composite material provided by the embodiment comprises the following steps:
Providing 5 parts of C5 petroleum resin, 38 parts of natural rubber, 62 parts of ethylene propylene diene monomer rubber, 53 parts of carbon black, 10 parts of environment-friendly aromatic oil, 3 parts of zinc oxide, 3 parts of stearic acid, 4 parts of an anti-aging agent, 3 parts of microcrystalline wax, 22 parts of phenolic resin, 20 parts of filler, 3 parts of sulfur, 3 parts of an accelerator and 0.8 part of a scorch retarder according to mass parts;
adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material;
adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 115 ℃, then injecting the environment-friendly aromatic oil, and controlling the banburying temperature to be 135 ℃ to obtain a second-stage sizing material;
Adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to 132 ℃ to obtain a three-stage sizing material;
adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to 98 ℃ to obtain a final-section sizing material;
Adding the final section of sizing material into a double-screw extruder, performing extrusion operation to obtain an extrusion composite material, and performing vulcanization operation to obtain the ethylene propylene diene monomer rubber composite material of the embodiment 2;
In this embodiment, the antioxidant includes 6PPD, TMQ and BLE, and the mass ratio of the 6PPD, the TMQ and the BLE is 4.5:6:22.
In this embodiment, the filler is modified clay, and the treatment method of the modified clay is as follows:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
Example 3
In this embodiment, the ethylene propylene diene monomer composite material comprises the following components in parts by mass: 10 parts of C5 petroleum resin, 40 parts of natural rubber, 65 parts of ethylene propylene diene monomer rubber, 50 parts of carbon black, 5 parts of environment-friendly aromatic oil, 1 part of zinc oxide, 1 part of stearic acid, 3.5 parts of an anti-aging agent, 1 part of microcrystalline wax, 20 parts of phenolic resin, 15 parts of a filler, 1 part of sulfur, 1 part of an accelerator and 0.5 part of a scorch retarder;
the preparation method of the ethylene propylene diene monomer composite material provided by the embodiment comprises the following steps:
10 parts of C5 petroleum resin, 40 parts of natural rubber, 65 parts of ethylene propylene diene monomer rubber, 50 parts of carbon black, 5 parts of environment-friendly aromatic oil, 1 part of zinc oxide, 1 part of stearic acid, 3.5 parts of an anti-aging agent, 1 part of microcrystalline wax, 20 parts of phenolic resin, 15 parts of filler, 1 part of sulfur, 1 part of an accelerator and 0.5 part of a scorch retarder;
adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material;
adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 115 ℃, then injecting the environment-friendly aromatic oil, and controlling the banburying temperature to be 135 ℃ to obtain a second-stage sizing material;
Adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to 132 ℃ to obtain a three-stage sizing material;
adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to 98 ℃ to obtain a final-section sizing material;
adding the final section of sizing material into a double-screw extruder, performing extrusion operation to obtain an extrusion composite material, and performing vulcanization operation to obtain the ethylene propylene diene monomer rubber composite material of the embodiment 3;
in this embodiment, the antioxidant includes 6PPD, TMQ and BLE, and the mass ratio of 6PPD, TMQ and BLE is 5:7:18.
In this embodiment, the filler is modified clay, and the treatment method of the modified clay is as follows:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
Comparative example 1
In this embodiment, the ethylene propylene diene monomer composite material comprises the following components in parts by mass: 5 parts of C5 petroleum resin, 38 parts of natural rubber, 62 parts of ethylene propylene diene monomer rubber, 53 parts of carbon black, 10 parts of environment-friendly aromatic oil, 3 parts of zinc oxide, 3 parts of stearic acid, 4 parts of an anti-aging agent, 3 parts of microcrystalline wax, 22 parts of phenolic resin, 20 parts of filler, 3 parts of sulfur, 3 parts of an accelerator and 0.8 part of a scorch retarder;
the preparation method of the ethylene propylene diene monomer composite material provided by the embodiment comprises the following steps:
Providing 5 parts of C5 petroleum resin, 38 parts of natural rubber, 62 parts of ethylene propylene diene monomer rubber, 53 parts of carbon black, 10 parts of environment-friendly aromatic oil, 3 parts of zinc oxide, 3 parts of stearic acid, 4 parts of an anti-aging agent, 3 parts of microcrystalline wax, 22 parts of phenolic resin, 20 parts of filler, 3 parts of sulfur, 3 parts of an accelerator and 0.8 part of a scorch retarder according to mass parts;
adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material;
adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 115 ℃, then injecting the environment-friendly aromatic oil, and controlling the banburying temperature to be 135 ℃ to obtain a second-stage sizing material;
Adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to 132 ℃ to obtain a three-stage sizing material;
adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to 98 ℃ to obtain a final-section sizing material;
adding the final section of sizing material into a double-screw extruder, performing extrusion operation to obtain an extruded composite material, and performing vulcanization operation to obtain an ethylene propylene diene monomer composite material of comparative example 1;
In this embodiment, the antioxidant includes 6PPD, TMQ and BLE, and the mass ratio of the 6PPD, the TMQ and the BLE is 4.5:6:22.
In this embodiment, the filler is clay.
Comparative example 2
In this embodiment, the ethylene propylene diene monomer composite material comprises the following components in parts by mass: 5 parts of C5 petroleum resin, 38 parts of natural rubber, 62 parts of ethylene propylene diene monomer rubber, 53 parts of carbon black, 10 parts of environment-friendly aromatic oil, 3 parts of zinc oxide, 3 parts of stearic acid, 4 parts of an anti-aging agent, 3 parts of microcrystalline wax, 22 parts of phenolic resin, 20 parts of filler, 3 parts of sulfur, 3 parts of an accelerator and 0.8 part of a scorch retarder;
the preparation method of the ethylene propylene diene monomer composite material provided by the embodiment comprises the following steps:
Providing 5 parts of C5 petroleum resin, 38 parts of natural rubber, 62 parts of ethylene propylene diene monomer rubber, 53 parts of carbon black, 10 parts of environment-friendly aromatic oil, 3 parts of zinc oxide, 3 parts of stearic acid, 4 parts of an anti-aging agent, 3 parts of microcrystalline wax, 22 parts of phenolic resin, 20 parts of filler, 3 parts of sulfur, 3 parts of an accelerator and 0.8 part of a scorch retarder according to mass parts;
adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material;
adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 115 ℃, then injecting the environment-friendly aromatic oil, and controlling the banburying temperature to be 135 ℃ to obtain a second-stage sizing material;
Adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to 132 ℃ to obtain a three-stage sizing material;
adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to 98 ℃ to obtain a final-section sizing material;
adding the final section of sizing material into a double-screw extruder, performing extrusion operation to obtain an extruded composite material, and performing vulcanization operation to obtain an ethylene propylene diene monomer rubber composite material of comparative example 2;
In this embodiment, the antioxidant includes 6PPD, TMQ and BLE, and the mass ratio of the 6PPD, the TMQ and the BLE is 3:7:24.
In this embodiment, the filler is modified clay, and the treatment method of the modified clay is as follows:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
Comparative example 3
In this embodiment, the ethylene propylene diene monomer composite material comprises the following components in parts by mass: 5 parts of C5 petroleum resin, 38 parts of natural rubber, 62 parts of ethylene propylene diene monomer rubber, 53 parts of carbon black, 10 parts of environment-friendly aromatic oil, 3 parts of zinc oxide, 3 parts of stearic acid, 4 parts of an anti-aging agent, 3 parts of microcrystalline wax, 22 parts of phenolic resin, 20 parts of filler, 3 parts of sulfur, 3 parts of an accelerator and 0.8 part of a scorch retarder;
the preparation method of the ethylene propylene diene monomer composite material provided by the embodiment comprises the following steps:
Providing 5 parts of C5 petroleum resin, 38 parts of natural rubber, 62 parts of ethylene propylene diene monomer rubber, 53 parts of carbon black, 10 parts of environment-friendly aromatic oil, 3 parts of zinc oxide, 3 parts of stearic acid, 4 parts of an anti-aging agent, 3 parts of microcrystalline wax, 22 parts of phenolic resin, 20 parts of filler, 3 parts of sulfur, 3 parts of an accelerator and 0.8 part of a scorch retarder according to mass parts;
adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material;
adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 115 ℃, then injecting the environment-friendly aromatic oil, and controlling the banburying temperature to be 135 ℃ to obtain a second-stage sizing material;
Adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to 132 ℃ to obtain a three-stage sizing material;
adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to 98 ℃ to obtain a final-section sizing material;
adding the final section of sizing material into a double-screw extruder, performing extrusion operation to obtain an extruded composite material, and performing vulcanization operation to obtain an ethylene propylene diene monomer composite material of comparative example 3;
in this embodiment, the antioxidant includes 6PPD, TMQ and BLE, and the mass ratio of 6PPD, TMQ and BLE is 6:5:18.
In this embodiment, the filler is modified clay, and the treatment method of the modified clay is as follows:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
Wherein the accelerators used in examples 1 to 3 and comparative examples 1 to 3 were NS, the scorch retarder used was N-cyclohexylthio phthalimide, and the appearance of the ethylene propylene diene monomer rubber composites of examples 1, 2 and 3 and the appearance of the ethylene propylene diene monomer rubber composites of comparative examples 1, 2 and 3 were examined, and the mechanical properties of the ethylene propylene diene monomer rubber composites of examples and comparative examples were examined, and the specific property test results are shown in Table 1.
TABLE 1 appearance and Performance test results
As can be seen from the test results in Table 1, the appearance and aging performance of the ethylene-propylene-diene monomer rubber composite materials of examples 1,2 and 3 are superior to those of the ethylene-propylene-diene monomer rubber composite material of comparative example 1, and the aging performance of the ethylene-propylene-diene monomer rubber composite materials of examples 1,2 and 3 are superior to those of the ethylene-propylene-diene monomer rubber composite materials of comparative examples 2-3, that is, the ethylene-propylene-diene monomer rubber composite material of the invention has good appearance, smooth surface, no granular feel and better durability, and by adopting C5 petroleum resin, natural rubber and ethylene-propylene-diene monomer rubber as a matrix and modifying the clay and compounding 6PPD, TMQ and BLE as an anti-aging agent, the aggregation distribution of filler particles can be avoided, and the granular feel on the surface of the ethylene-propylene-diene monomer rubber composite material is avoided, so that the ethylene-propylene-diene monomer rubber composite material is favorable for quick extrusion, the ethylene-propylene-diene monomer rubber composite material finished product with high surface smoothness and the prepared ethylene-diene monomer rubber composite material finished product has good durability.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The ethylene propylene diene monomer composite material is characterized by comprising the following components in parts by mass: 1 to 10 parts of C5 petroleum resin, 35 to 40 parts of natural rubber, 60 to 65 parts of ethylene propylene diene monomer rubber, 50 to 55 parts of carbon black, 5 to 15 parts of environment-friendly aromatic oil, 1 to 5 parts of zinc oxide, 1 to 5 parts of stearic acid, 3.5 to 5 parts of anti-aging agent, 1 to 5 parts of microcrystalline wax, 20 to 25 parts of functional resin, 15 to 25 parts of filler, 1 to 5 parts of sulfur, 1 to 5 parts of accelerator and 0.5 to 1 part of scorch retarder.
2. The ethylene propylene diene monomer composite material according to claim 1, wherein the functional resin is a phenolic resin.
3. The ethylene propylene diene monomer composite material according to claim 1, wherein the anti-aging agent comprises 6PPD, TMQ and BLE.
4. The ethylene propylene diene monomer rubber composite material according to claim 2, wherein the mass ratio of the 6PPD, the TMQ and the BLE is 4-5: 5 to 7:18 to 24.
5. The ethylene propylene diene monomer composite material of claim 1, wherein the accelerator comprises at least one of NS and CZ.
6. The ethylene propylene diene monomer composite material according to claim 1, characterized in that the filler is a modified clay.
7. The ethylene propylene diene monomer rubber composite material according to claim 6, wherein the modified clay treatment method comprises the following steps:
Providing clay, and calcining the clay to obtain porous clay;
providing a sulfhydryl silane coupling agent, adding the porous clay into the sulfhydryl silane coupling agent, uniformly stirring, and standing for 10min to obtain the modified clay.
8. The ethylene propylene diene monomer rubber composite material according to claim 1, wherein the scorch retarder is N-cyclohexylthio phthalimide.
9. The preparation method of the ethylene propylene diene monomer composite material is characterized by comprising the following steps of:
Providing 1 to 10 parts by mass of C5 petroleum resin, 35 to 40 parts by mass of natural rubber, 60 to 65 parts by mass of ethylene propylene diene monomer, 50 to 55 parts by mass of carbon black, 5 to 15 parts by mass of environment-friendly aromatic oil, 1 to 5 parts by mass of zinc oxide, 1 to 5 parts by mass of stearic acid, 3.5 to 5 parts by mass of anti-aging agent, 1 to 5 parts by mass of microcrystalline wax, 20 to 25 parts by mass of functional resin, 15 to 25 parts by mass of filler, 1 to 5 parts by mass of sulfur, 1 to 5 parts by mass of accelerator and 0.5 to 1 part by mass of scorch retarder;
adding the C5 petroleum resin, the natural rubber and the ethylene propylene diene monomer into an internal mixer, and stirring and banburying to obtain a section of sizing material;
Adding the carbon black and the filler into the first-stage sizing material, stirring and banburying, controlling the banburying temperature to be 110-120 ℃, then injecting the environment-friendly aromatic hydrocarbon oil, and controlling the banburying temperature to be 130-140 ℃ to obtain a second-stage sizing material;
Adding the zinc oxide, the stearic acid, the anti-aging agent, the microcrystalline wax and the functional resin into the two-stage sizing material, stirring and banburying, and controlling the banburying temperature to be 130-135 ℃ to obtain three-stage sizing material;
Adding the sulfur, the accelerator and the scorch retarder into the three-section sizing material, stirring and banburying, and controlling the banburying temperature to be 95-100 ℃ to obtain a final-section sizing material;
and adding the final section of sizing material into a double-screw extruder, performing extrusion operation to obtain an extruded composite material, and performing vulcanization operation to obtain the ethylene propylene diene monomer composite material.
10. Use of an ethylene propylene diene monomer rubber composite material according to any one of claims 1 to 8 in the preparation of a rubber tube.
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