CN101638494B - Ethylene propylene diene rubber material - Google Patents
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Abstract
The invention provides an ethylene propylene diene rubber material. The material is a product formed by mixing and sulfurizing a mixture containing ethylene propylene diene rubber, sulfur and a sulfur-bearing accelerating agent, wherein the mixture also contains an additive which contains benzimidazole compounds and paraffin hydrocarbon. According to the ethylene propylene diene rubber material, the additive is added to the mixed mixture so that the ethylene propylene diene rubber does not corrode metal or has small corrosion, can maintain various performances of the ethylene propylene diene rubber material, and can be applied to the occasions matched with metals to further widen the application field of the ethylene propylene diene rubber.
Description
Technical field
The present invention relates to a kind of ethylene propylene diene monomer (EPDM) material.
Background technology
Terpolymer EP rubber is obtained by ethene, propylene and the polymerization in the presence of catalyzer of three kinds of monomers of diene, mainly contains ethylidene norbornene, NSC 7352 and 1,4-hexadiene etc. as the 3rd monomeric diene.Terpolymer EP rubber has good chemical stability, and its ozone resistance, stability to aging, resistance to chemical reagents, weathering resistance and thermotolerance are all very excellent.Its main working method is solution or the suspension polymerization of carrying out through Ziegler-Natta catalyst.Be mainly used in high level cable material, trolley part and especially be used as weather strip for automobile, windproof and rain proof adhesive plaster, waterproof building material, radiator rubber hose, incabloc and tyre side tire etc.In addition, terpolymer EP rubber also is widely used in electronic product sealing, top-grade furniture, builds a bridge and stadiums construction etc.
Usually,, especially increase the elasticity of terpolymer EP rubber, need terpolymer EP rubber be vulcanized with sulphur in order to improve and improve the use properties of terpolymer EP rubber.But because the vulcanization rate of terpolymer EP rubber is very slow; In order to solve the slow problem of terpolymer EP rubber vulcanization rate; People are often through adding promotor and selecting the extra high thiuram type accelerator of catalytic activity to improve vulcanization rate; But the ethylene propylene diene monomer (EPDM) material after using promotor to vulcanize can produce corrosion to metal during with metallic contact, can corrode the metal generation when for example being used for the sealed strip of automobile when especially ethylene propylene diene monomer (EPDM) material and metal being used.
CN1281886A discloses a kind of preparation method of EPDM rubber waterproof rolling material; Wherein, Select for use proportioning raw materials in weight ratio; At first terpolymer EP rubber 60-70, butyl rubber 10-26, X 050 4-25, these three kinds of glue one plasticate, get into then that Banbury mixer adds carbon black 50-70, fine particle calcium carbonate 50-70, coumarone 2-7, pitch 2-10, NO 10-20 again, [methene-3-(3 for zinc oxide 5-10, four; The 5-di-tert-butyl-hydroxy phenyl) propionic ester] mixing for methane 0.5-1, Triple Pressed Stearic Acid 0.7-1.2, di-mercaptobenzothiazolby 0.2-1.5, dibenzothiazole disulfide 0.5-1.5, tetramethyl-thiuram disulfide 0.5-1.5, zinc methylphenyldithiocarbamate 0.1-0.7, ethylene thiourea 0.1-1, sulphur 0.5-1.5; Get into mill heat refining, discharging after the discharging again and get into shaper moulding, head temperature 70-80 ℃, get into the vulcanizing plant sulfuration at last, curing temperature 145-160 ℃, sulfurizing time 10-110 minute.This waterproof roll has favorable waterproof property, the water-proof material that can be used for building, but this waterproof roll has corrosion to metal, and the also corresponding decline of performance of coiled material simultaneously, thereby can not be used for the field that is used with metal.
Summary of the invention
The objective of the invention is to overcome above-mentioned EPDM rubber waterproof rolling material of the prior art has the corrosive defective to metal, and providing a kind of can not have corrosion or corrodibility is very little and keep the ethylene propylene diene monomer (EPDM) material of the superperformance of rubber to metal.
The invention provides a kind of ethylene propylene diene monomer (EPDM) material; The product that this material is mixing for the mixture that will contain terpolymer EP rubber, sulphur and sulfur containing promoter and sulfuration forms; Wherein, said mixture also contains additive, and said additive contains benzimidazoles compound and paraffinic hydrocarbons.
Ethylene propylene diene monomer (EPDM) material provided by the invention; Owing in mixing mixture, added additive; Thereby perhaps corrodibility is very little can to make ethylene propylene diene monomer (EPDM) material of the present invention that metal is not had corrosion; And can keep the various performances of ethylene propylene diene monomer (EPDM) material, thus can be used for the occasion that is used with metal, and then can widen the Application Areas of terpolymer EP rubber.
Embodiment
The product that ethylene propylene diene monomer (EPDM) material provided by the invention is mixing for the mixture that will contain terpolymer EP rubber, sulphur and sulfur containing promoter and sulfuration forms; Wherein, Said mixture also contains additive, and said additive contains benzimidazoles compound and paraffinic hydrocarbons.
When conventional ethylene propylene diene monomer (EPDM) material and metallic contact,, make the degradation of elastomeric material simultaneously usually metal being corroded with the position of metallic contact.Its reason is; For elasticity, use properties and the processing characteristics that improves terpolymer EP rubber; Usually need the terpolymer EP rubber that be polymerized be vulcanized in the prior art; And the free sulphur that in sulfidation, produces can react when contacting with heavy metals such as metal such as copper, iron or manganese, thereby generates heavy metallic salt.The heavy metal ion that heavy metallic salt decomposites has the intensive katalysis to the weathering process of elastomeric material, finally causes the performance of ethylene propylene diene monomer (EPDM) material sharply to descend, and also can turn black because of corrosion in the heavy metal surface.
The additive that contains benzimidazoles compound and paraffinic hydrocarbons used in the present invention can prevent ethylene propylene diene monomer (EPDM) material and Corrosion of Metallic Materials effectively through physics and chemical mechanism; Wherein, Benzimidazoles compound can form stable complex compound effectively with heavy metal; Heavy metal can not reacted with free sulphur more also can not have catalytic capability the oxidation of elastomeric material; And paraffinic hydrocarbons such as normal paraffin and isoparaffin can be moved to product surface in the use of terpolymer EP rubber, can effectively elastomeric material and metal be kept apart, thereby prevent corrosion of metal.The two additive effect has reduced the corrodibility of ethylene propylene diene monomer (EPDM) material effectively.
According to ethylene propylene diene monomer (EPDM) material provided by the invention; Terpolymer EP rubber can be through being purchased acquisition; The for example EPDM7500 of the EPDM27 of the EPDM8340A of Dutch DSM and EPDM4903, JSR and EPDM35, EXXON and EPDM8600, also known method by one of skill in the art is with the polymerization and obtaining in the presence of catalyzer of ethene, propylene and three kinds of monomers of diene; Mainly contain ethylidene norbornene, NSC 7352 and 1,4-hexadiene etc. as the 3rd monomeric diene.The weight-average molecular weight of terpolymer EP rubber used in the present invention is 300,000-500,000, and the mol ratio of ethene, propylene and diene is 50-70: 25-45: 4-12.
According to ethylene propylene diene monomer (EPDM) material provided by the invention, under the preferable case, in said mixture; Based on 100 weight part terpolymer EP rubbers, the content of sulphur is the 0.5-2 weight part, and the content of said sulfur containing promoter is the 3-10 weight part; Be preferably the 4-6 weight part; Content of additive is the 0.5-4 weight part, and the weight ratio 1-2 of benzimidazoles compound and paraffinic hydrocarbons: 1, be preferably 1-1.5: 1.
According to ethylene propylene diene monomer (EPDM) material provided by the invention; Under the preferable case; Said benzimidazoles compound can for example can be zinc salt of 2 mercaptobenzimidazole and/or 2-mercaptobenzimidazole for the various various benzimidazoles compounds that can form stable complex compound with heavy metal.
According to ethylene propylene diene monomer (EPDM) material provided by the invention; Under the preferable case; The carbonatoms of said paraffinic hydrocarbons is 23-36; Can make use temperature a wider range of resulting ethylene propylene diene monomer (EPDM) material, said paraffinic hydrocarbons comprises normal paraffin and isoparaffin, and this paraffinic hydrocarbons can select for use Microcrystalline Wax, SEMI-REFINED PARAFFIN WAX and be full of cracks to prevent among the agent OKERIN 1900/1H one or more.
According to ethylene propylene diene monomer (EPDM) material provided by the invention; Said sulfur containing promoter can be selected the various sulfur containing promoters of the conventional quickening vulcanization of rubber of using in this area, for example one or more in thiuram type accelerator, thiazole accelerator, Thiourea accelerator and the MGD promotor for use.
Wherein thiuram type accelerator can be in tetramethyl-thiuram disulfide, tetraethylthiuram disulfide, tetramethylthiuram monosulfide, tetramethylthiuram tetrasulfide and four sulfuration (pentamethylene) thiurams one or more;
Thiazole accelerator can be 2-mercaptobenzothiazole, dibenzothiazole disulfide, N; N-di-isopropyl-2-[4-morpholinodithio sulphenamide, N tert butyl benzothiazole 2 sulfenamide, N; N-dicyclohexyl-2-[4-morpholinodithio sulphenamide and N; In O-two (ethylene)-2-[4-morpholinodithio sulphenamide one or more;
Thiourea accelerator can be ethylene thiocarbamide, N, one or more in N-di-n-butyl thiocarbamide and the diphenyl thiourea.
MGD promotor can be in ziram, zinc diethyldithiocarbamate, zinc dibutyl dithiocarbamate and the Selenium dimethyl dithiocarbamate one or more.
According to ethylene propylene diene monomer (EPDM) material provided by the invention; Under the preferable case; Said mixture also contains softening agent, and said softening agent is the paraffinic base softening oil, the paraffinic base content of said paraffinic base softening oil greater than 70 weight %, be preferably 70-80 weight %; Aromaticity content is less than 1 weight %, preferably less than 0.5 weight %, and flash-point is higher than 200 ℃, is preferably 220-300 ℃.Use this softening agent good processing properties and low temperature use properties to be provided for ethylene propylene diene monomer (EPDM) material of the present invention.
According to ethylene propylene diene monomer (EPDM) material provided by the invention, under the preferable case, based on the terpolymer EP rubber of 100 weight parts, the content of said softening agent is the 50-80 weight part.
According to ethylene propylene diene monomer (EPDM) material provided by the invention, under the preferable case, said mixture also contains quicklime, and based on the terpolymer EP rubber of 100 weight parts, the content of said quicklime is the 3-8 weight part.The moisture that uses quicklime to absorb in the mixture to be contained, thus can prevent to produce pore in the ethylene propylene diene monomer (EPDM) material of the present invention and the strength property that influences this material.
According to ethylene propylene diene monomer (EPDM) material provided by the invention, under the preferable case, said mixture also contains one or more in zinc oxide, Triple Pressed Stearic Acid, carbon black and the filler.
According to ethylene propylene diene monomer (EPDM) material provided by the invention, under the preferable case, one or more in zinc oxide, Triple Pressed Stearic Acid and the carbon black that said mixture also contains in this area to be used always.Wherein, The heat conductivility of the sulfuration efficient when zinc oxide and Triple Pressed Stearic Acid can improve the terpolymer EP rubber sulfuration, raising ethylene propylene diene monomer (EPDM) material; And improve the physical and mechanical property of ethylene propylene diene monomer (EPDM) material; The intensity that carbon black can improve elastomeric material is tensile strength, tear strength and wear resisting property for example; Said filler can be the conventional filler that uses in this area, thereby can on the basis of the performance that does not influence ethylene propylene diene monomer (EPDM) material, reduce the cost of this elastomeric material, and said filler is one or more in lime carbonate, potter's clay and the talcum powder.
According to ethylene propylene diene monomer (EPDM) material provided by the invention, under the preferable case, based on the terpolymer EP rubber of 100 weight parts; The content of zinc oxide is the 5-10 weight part; Stearic content is the 1-2 weight part, and the content of carbon black is the 60-120 weight part, and the content of said filler is the 30-110 weight part.
According to ethylene propylene diene monomer (EPDM) material provided by the invention, in said filler, the content of lime carbonate can be the 20-60 weight part, and the content of potter's clay can be the 10-50 weight part, and talcous content can be the 10-50 weight part.Lime carbonate can comprise water-ground limestone and light calcium carbonate.
According to ethylene propylene diene monomer (EPDM) material provided by the invention; The preparation method of this elastomeric material is for well known to a person skilled in the art, for example this preparation method may further comprise the steps: the mixture that will contain terpolymer EP rubber, sulphur and sulfur containing promoter under 60-150 ℃ temperature mixing 8-18 minute; Then with this mixture heating up to 150-180 ℃ the sulfuration 5-15 minute, vulcanize.
Under preferable case; When except that containing terpolymer EP rubber, additive, sulphur and sulfur containing promoter, also containing quicklime, zinc oxide, Triple Pressed Stearic Acid, carbon black and filler in the said mixture; After needing earlier each composition of other except that additive, sulphur, quicklime and sulfur containing promoter in the mixture to be mixed; Under 100-150 ℃ temperature, carried out one section mixing 5-10 minute, and processed rubber master batch.In rubber master batch, adding additive, sulphur, quicklime and sulfur containing promoter then carried out two-stage mixing 3-8 minute at 60-70 ℃.Then mixture heating up to 150-180 ℃ of sulfuration vulcanized in 6-12 minute.
Said mixing and sulfurized method are known in those skilled in the art, and said sulfurized method can adopt the continuous curing method that well known to a person skilled in the art infrared-microwave-warm air, also can adopt flat vulcanizer to vulcanize.
Adopt the mode of specific embodiment that the present invention is described in further detail below.
Embodiment 1
Terpolymer EP rubber (EPDM8340A with 100 weight parts; Holland DSM), 60 parts by weight of carbon black (N550; The Shanghai Cabot), the ZnO of the potter's clay of the water-ground limestone of 40 weight parts, 10 weight parts, 5 weight parts is (homemade; Purity 99.7%) and the Triple Pressed Stearic Acid of 1.0 weight parts mix, obtain mixture.
With the above-mentioned mixture that obtains in the Banbury mixer of 50L (Shanghai one hundred great ltd produces), under 120 ℃, carry out one section mixing about 8 minutes, placed 24 hours, obtain rubber master batch.
With 1.5 weight part 2-mercaptobenzimidazoles (Huangyan, Zhejiang chemical industry three factories; MB), 0.5 weight part Microcrystalline Wax (Britain asto; Okerin1900), the quicklime of the sulphur of 1.2 weight parts, 5.0 weight parts, 0.4 weight part ziram, 1.0 weight part zinc dibutyl dithiocarbamates, 0.6 weight part tetramethyl-thiuram disulfide, 1.0 weight part 2-mercaptobenzothiazoles and four sulfurations (1 of 1.0 weight parts; The 5-pentylidene) thiuram adds in the above-mentioned rubber master batch that obtains; In the glue machine that turns over (production of Sichuan Ya Xi rubber and plastic equipment ltd) of 550mm, under 60 ℃ temperature, carry out two-stage mixing 5 minutes to mixing, with this rubber unvulcanizate with logical three times of the thin thickness of 0.2mm.
On the vulcanizer of 50T, be 15MPa at pressure then, temperature is sulfuration 10 minutes under 170 ℃ the condition, and making thickness is the ethylene-propylene-diene monomer film of 2mm.
Comparative Examples 1
Method according to embodiment 1 prepares the ethylene-propylene-diene monomer film, and different is not add additive 2-sulfydryl benzo mew and Microcrystalline Wax.
Comparative Examples 2
Method according to embodiment 1 prepares the ethylene-propylene-diene monomer film, and different is not add the additive Microcrystalline Wax.
Comparative Examples 3
Method according to embodiment 1 prepares the ethylene-propylene-diene monomer film, and different is not add additive 2-sulfydryl benzo mew.
Embodiment 2
Terpolymer EP rubber (EPDM8340A with 100 weight parts; Holland DSM), 120 parts by weight of carbon black (N550; The Shanghai Cabot), the ZnO of the potter's clay of the water-ground limestone of 20 weight parts, 50 weight parts, 10 weight parts is (homemade; Purity 99.7%) and the softening agent Yellow Protopet 2A of the Triple Pressed Stearic Acid of 1.5 weight parts and 60 weight parts (2280, U.S.'s SUN) mix, obtain mixture.
With the above-mentioned mixture that obtains in the Banbury mixer of 50L (Shanghai one hundred great ltd produces) at 100 ℃) under carry out one section mixing about 10 minutes, placed 24 hours, obtain rubber master batch.
With 0.4 weight part 2-mercaptobenzimidazole (Huangyan, Zhejiang chemical industry three factories; MB), 0.4 parts by weight O KERIN 19004 (Britain asto; Okerin1900), the quicklime of the sulphur of 1.0 weight parts, 3.0 weight parts, 0.6 weight part ziram, 1.2 weight parts 1; 2-ethylene thiourea, 0.8 weight part tetramethyl-thiuram disulfide and 1.5 weight part 2-mercaptobenzothiazoles add in the above-mentioned rubber master batch that obtains; In the glue machine that turns over (production of Sichuan Ya Xi rubber and plastic equipment ltd) of 550mm, under 70 ℃ temperature, carry out two-stage mixing 6 minutes to mixing, with this rubber unvulcanizate with logical three times of the thin thickness of 0.2mm.
On the vulcanizer of 50T, be 15MPa at pressure then, temperature is sulfuration 12 minutes under 160 ℃ the condition, and making thickness is the ethylene-propylene-diene monomer film of 2mm.
Embodiment 3
Terpolymer EP rubber (EPDM8340A with 100 weight parts; Holland DSM), 80 parts by weight of carbon black (N550; The Shanghai Cabot), the ZnO of the potter's clay of the water-ground limestone of 60 weight parts, 50 weight parts, 8 weight parts is (homemade; Purity 99.7%), the softening agent Yellow Protopet 2A (2280, U.S.'s SUN) of the Triple Pressed Stearic Acid of 2 weight parts and 80 weight parts mixes, and obtains mixture.
With the above-mentioned mixture that obtains in the Banbury mixer of 50L (Shanghai one hundred great ltd produces), under 150 ℃, carry out one section mixing about 6 minutes, placed 24 hours, obtain rubber master batch.
With 0.8 weight part zinc salt of 2 mercaptobenzimidazole (Huangyan, Zhejiang chemical industry three factories; MB), 0.4 weight part Microcrystalline Wax (Britain asto; Okerin1900), the quicklime of the sulphur of 1.5 weight parts, 8.0 weight parts, 0.6 weight part ziram, 1.2 weight part zinc dibutyl dithiocarbamates, 0.4 weight part tetramethyl-thiuram disulfide, 0.5 weight part N; N-di-n-butyl thiocarbamide, 1.0 weight part 2-mercaptobenzothiazoles and four sulfurations (1 of 1.0 weight parts; The 5-pentylidene) thiuram adds in the above-mentioned rubber master batch that obtains; In the glue machine that turns over (production of Sichuan Ya Xi rubber and plastic equipment ltd) of 550mm, under 65 ℃ temperature, carry out two-stage mixing 4 minutes to mixing, with this rubber unvulcanizate with logical three times of the thin thickness of 0.2mm.
On the vulcanizer of 50T, be 15MPa at pressure then, temperature is sulfuration 10 minutes under 180 ℃ the condition, and making thickness is the ethylene-propylene-diene monomer film of 2mm.
Embodiment 4
Method according to describing among the embodiment 2 prepares the ethylene-propylene-diene monomer film, and different is that the additive 2-sulfydryl benzo mew that adds is 1.2 weight parts, OKERIN 1900 (Britain asto) 0.8 weight part.
Embodiment 5
Method according to describing among the embodiment 1 prepares the ethylene-propylene-diene monomer film, and different is that the additive that adds is 2-sulfydryl benzo mew 1.6 weight parts, OKERIN 1900 (Britain asto) 0.8 weight part.
Performance test
1, test is to corrosion of metal property
Method according to describing in the QC/T639-2004 appendix A is tested.
Sample with the ethylene-propylene-diene monomer film is tailored into 20mm * 10mm * 2mm contacts sample with the thick electrolysis copper coin of 0.5mm, apply and be not less than 0.022N/mm
2Pressure.Whole assembly is placed in the baking oven that meets GB/T 3512-2001,24 hours experimental temperature held times of 100 ± 2 ℃.The standard of test is estimated by following standard.
Automobile is as shown in table 1 with rubber weather strip corrodibility standard among the automobile industry standard QC/T 639-2004:
Table 1
| Rank | Describe |
| 1 grade | Do not become black |
| 2 grades | Slight tempering color |
| 3 grades | The severe tempering color |
| 4 grades | Become black |
2, test tensile strength (MPa) and elongation at break (%)
Use the omnipotent pulling experiment machine of GP-TS2000S of Gaopin Detection Equipment Co., Ltd., Shenzhen, test according to the method for describing among the GB/T528.
3, test sulfurizing time TC90 and maximum torque MH
Use the equipment (specification is MY-7000-FA) of inscription Yu electronics technology ltd, test according to the method for describing among the GB/T16584, and record vulcanization rate parameter sulfurizing time TC90 and maximum torque MH.
The ethylene-propylene-diene monomer film that embodiment 1-5 and Comparative Examples 1-3 make is tested according to the performance test methods of above-mentioned 1-3, and gained is the result be shown in Table 2.
Table 2
| Corrodibility | Tensile strength (MPa) | Elongation at break (%) | TC90 | MH | |
| Embodiment 1 | 1 grade | ?11.5 | 508.6 | 5’46” | 17.451 |
| Comparative Examples 1 | 4 grades | ?13.5 | 435.8 | 4’18” | 20.483 |
| Comparative Examples 2 | 2 grades | ?12.6 | 488.6 | 4’52” | 19.354 |
| Comparative Examples 3 | 3 grades | ?12.8 | 465.3 | 4’38” | 19.667 |
| Embodiment 2 | 2 grades | ?13.4 | 467.2 | 4’22” | 18.724 |
| Embodiment 3 | 2 grades | ?13.2 | 471.3 | 4’24” | 18.253 |
| Embodiment 4 | 1 grade | ?13.2 | 475.6 | 4’28” | 18.215 |
| Embodiment 5 | 1 grade | ?10.8 | 562.4 | 6’48” | 16.286 |
In the last table 2, the mechanical property of the elastomeric material that tensile strength and elongation at break reflection sulfuration are later, the high more use properties of tensile strength is good more, should be controlled at 250%-550% according to QC/T 639-2004 elongation at break; The processing characteristics of sulfurizing time TC90 and maximum torque MH reflection unvulcanized rubber material, TC90 is short more, and tooling cost is low more, and maximum torque MH is big more, and cross-linking density is high more, and mechanical property is good more.
Can find out from the data of embodiment 1-5 and Comparative Examples 1-3, add the corrosion resistance nature that additive benzimidazoles compound and paraffinic hydrocarbons can significantly improve rubber among the embodiment 1-6.
Compare with embodiment 1 in the Comparative Examples 2,3, use benzimidazoles compound or paraffinic hydrocarbons that the vulcanization of rubber is only had certain restraining effect separately.Therefore, when adopting additive in the present invention, needs adopt effective ratio stack of benzimidazoles compound and paraffinic hydrocarbons to solve the corrodibility and the comprehensive mechanical performance problem of elastomeric material.
Embodiment 2-5 has solved the corrodibility and the comprehensive mechanical performance problem of terpolymer EP rubber effectively through the additive of use different content with different proportionings.Like embodiment 4 resulting ethylene propylene diene monomer (EPDM) materials, keeping under the situation that sulfurizing time TC90 is less and maximum torque MH is bigger, the corrodibility test result is 1 grade, makes that this elastomeric material mechanical property is good, has erosion resistance simultaneously.This ethylene propylene diene monomer (EPDM) material can be widely used in automobile, electric wire, the field of high requests such as electronic devices and components.
Claims (8)
1. ethylene propylene diene monomer (EPDM) material, the product that this material is mixing for the mixture that will contain terpolymer EP rubber, sulphur and sulfur containing promoter and sulfuration forms is characterized in that; Said mixture also contains additive, and said additive contains benzimidazoles compound and paraffinic hydrocarbons, in said mixture; Based on 100 weight part terpolymer EP rubbers; The content of sulphur is the 0.5-2 weight part, and the content of said sulfur containing promoter is the 3-10 weight part, and content of additive is the 0.5-4 weight part; And the weight ratio of benzimidazoles compound and paraffinic hydrocarbons is 1-2: 1; Wherein, said benzimidazoles compound is for forming the various benzimidazoles compounds of stable complex compound with heavy metal, and the carbonatoms of said paraffinic hydrocarbons is 23-36.
2. ethylene propylene diene monomer (EPDM) material according to claim 1, wherein, said benzimidazoles compound is zinc salt of 2 mercaptobenzimidazole and/or 2-mercaptobenzimidazole; Said sulfur containing promoter is one or more in thiuram type accelerator, thiazole accelerator, Thiourea accelerator and the MGD promotor.
3. ethylene propylene diene monomer (EPDM) material according to claim 1, wherein, said mixture also contains softening agent; Said softening agent is the paraffinic base softening oil; The paraffinicity of said paraffinic base softening oil is greater than 70 weight %, and aromaticity content is less than 1 weight %, and flash-point is higher than 200 ℃.
4. ethylene propylene diene monomer (EPDM) material according to claim 3, wherein, based on the terpolymer EP rubber of 100 weight parts, the content of said softening agent is the 50-80 weight part.
5. according to claim 1 or 3 described ethylene propylene diene monomer (EPDM) materials, wherein, said mixture also contains quicklime, and based on the terpolymer EP rubber of 100 weight parts, the content of said quicklime is the 3-8 weight part.
6. ethylene propylene diene monomer (EPDM) material according to claim 5, wherein, said mixture also contains one or more in zinc oxide, Triple Pressed Stearic Acid, carbon black and the filler, and said filler is one or more in lime carbonate, potter's clay and the talcum powder.
7. ethylene propylene diene monomer (EPDM) material according to claim 6, wherein, based on the terpolymer EP rubber of 100 weight parts; The content of zinc oxide is the 5-10 weight part; Stearic content is the 1-2 weight part, and the content of carbon black is the 60-120 weight part, and the content of said filler is the 30-110 weight part.
8. ethylene propylene diene monomer (EPDM) material according to claim 1, wherein, under the said mixing 60-150 of being included in of mixture ℃ the temperature that will contain terpolymer EP rubber, sulphur and sulfur containing promoter mixing 8-18 minute; Said sulfuration comprises mixture heating up to 150-180 ℃ of sulfuration 5-15 minute.
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| CN102516674B (en) * | 2011-12-09 | 2013-09-11 | 广东工业大学 | Thermal conductive terpolymer EP rubber composite material and preparation method thereof |
| CN103467860A (en) * | 2012-06-09 | 2013-12-25 | 天津滨海新区大港汇丰汽车装饰有限公司 | Preparation method for anti-blooming automobile rubber product |
| CN103467861A (en) * | 2012-06-09 | 2013-12-25 | 天津滨海新区大港汇丰汽车装饰有限公司 | Preparation method of automobile corner window sealing material |
| CN104974427A (en) * | 2014-04-12 | 2015-10-14 | 天津滨海新区大港汇丰汽车装饰有限公司 | Preparation method of high-corrosion-resistant novel rubber sealing material |
| CN105400082A (en) * | 2015-11-13 | 2016-03-16 | 江苏宝利来斯橡胶有限公司 | Improved highly-filled ethylene propylene diene monomer master batch |
| CN109320853B (en) * | 2017-08-01 | 2021-10-22 | 比亚迪股份有限公司 | Ethylene propylene diene monomer and preparation method thereof |
| CN114702757A (en) * | 2022-03-09 | 2022-07-05 | 江苏中煜橡塑科技有限公司 | Preparation method of ethylene propylene diene monomer sealing ring for power battery |
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| CN1663998A (en) * | 2005-03-08 | 2005-09-07 | 成都宏亿复合材料工程技术有限公司 | Rubber bearing pad under rail concrete elastic sleeper and method for making same |
| JP2007031609A (en) * | 2005-07-28 | 2007-02-08 | Nok Corp | Blend rubber composition for molding dust cover or boots |
| CN101134888A (en) * | 2007-08-15 | 2008-03-05 | 安阳市鑫河科技研究院有限责任公司 | Modified EPT rubber packing material and preparation method thereof |
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