CN102010551A - EPDM (ethylene-propylene-diene monomer) composition and hose - Google Patents
EPDM (ethylene-propylene-diene monomer) composition and hose Download PDFInfo
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- CN102010551A CN102010551A CN 201010565967 CN201010565967A CN102010551A CN 102010551 A CN102010551 A CN 102010551A CN 201010565967 CN201010565967 CN 201010565967 CN 201010565967 A CN201010565967 A CN 201010565967A CN 102010551 A CN102010551 A CN 102010551A
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Abstract
The invention relates to an EPDM (ethylene-propylene-diene monomer) composition and a hose, wherein the composition comprises the following components: ethylene-propylene-diene monomer, fast extruding furnace black, Sillitin powder, paraffin oil, magnesium oxide, poly(1,2-dihydro-2,2,4-trimethyl-quinoline), polyethylene glycol, 1,3-bis(tert-Butylperoxy-isopropyl)benzene, and triallyl isocyanurate. The EPDM composition can be used for preparing a hose which has the advantages of excellent high-temperature resistance, electrochemical corrosion resistance and sufficient physical properties, wherein the high-temperature resistance of the prepared hose is shown as follows: the elongation of the hose is minus 7.9 percent after being subjected to thermal aging for 94 hours at the temperature of 170 DEG C, and the permanent deformation rate of the hose is 60 percent after being compressed for 22 hours at the temperature of 120 DEG C; and the electrochemical corrosion resistance of the hose is shown as follows: the volume resistivity is 1*1012 ohm.cm, and the hose has no crack after being subjected to electrochemical degradation for 504 hours at the temperature of 115 DEG C and at a voltage of 12V.
Description
Technical field
The present invention relates to a kind of EPT rubber composition and utilize the prepared flexible pipe of this type of EPT rubber composition.
Background technology
Terpolymer EP rubber has excellent specific property such as flexible resistance, lower temperature resistance, anti-ozone, anti-weather-aging property, resistance toheat, water-fast steam, electrical insulating property and resistant to chemical media, and they can be used as various flexible pipes such as automotive air conditioning hose, water-cooled tube, warm braw pipe, skylight drain pipe, cable sheath, pad, reach in the formed material of other moulded product.
In this type of formed material, require that terpolymer EP rubber is used for the prepared automobile cooling water pipe of rubber layer and should have very high high thermal resistance and electrochemical corrosion resistant.Because when this type of flexible pipe at high temperature contacts with warm air with cooling fluid, this EPT rubber composition that constitutes rubber layer can be degraded or harden at short notice, and forms the crack or become fragile or cause tearing of rubber layer in rubber layer.
Technology as this type of problem of solution, in the prior art, the composition of terpolymer EP rubber is used for the prepared flexible pipe of rubber layer, although through finding that it has sufficient physicals such as lower temperature resistance, anti-ozone, anti-weather-aging property, it is high temperature resistant, the electrochemical corrosion resistant deficiency.
Summary of the invention
In view of above-mentioned situation, purpose of the present invention promptly is to provide a kind of EPT rubber composition, and it can be used for making to high temperature resistant, the excellent resistance of electrochemical corrosion resistant and has the flexible pipe of abundant physical property (as lower temperature resistance, anti-ozone, anti-weather-aging property).Another object of the present invention is to provide this type of EPT rubber composition is used for the prepared flexible pipe of rubber layer.
In order to address the above problem, deep research and discovery have been carried out, can make by using a kind of EPT rubber composition high temperature resistant, excellent resistance of electrochemical corrosion resistant and flexible pipe with abundant physical property (as lower temperature resistance, anti-ozone, anti-weather-aging property), this EPT rubber composition component and mass fraction are as follows:
100 parts of terpolymer EP rubbers,
Fast 60～80 parts of the carbon blacks that extrude,
30～50 parts in the beautiful powder of silicon,
40～60 parts of paraffin oils,
5 parts in magnesium oxide,
2,2,4-trimethylammonium-1,1 part of 2-dihydro quinoline woods polymer,
5 parts of polyoxyethylene glycol,
1,7.5 parts of two (t-butylperoxy di-isopropyl) benzene of 3-,
0.5 part of triallylcyanurate.
Terpolymer EP rubber preferred, terpolymer EP rubber is the multipolymer of ethene, propylene and a small amount of non-conjugated diene hydrocarbon (being called for short the 3rd monomer), and the 3rd monomer has dicyclopentadiene (being called for short DCPD), methene norbornene (being called for short ENB), the inferior ethene 2-of 5-norbornylene (being called for short VNB).These three kinds of terpolymer EP rubbers are called for short DCPD-EPDM, ENB-EPDM, VNB-EPDM.Thermotolerance optimum with VNB-EPDM.The preferred VNB of the present invention is the 3rd monomeric terpolymer EP rubber.
The fast carbon black that extrudes is strengthening agent, and expressing technique is good, good springiness, tensile strength height.
Carbon black is preferred: the strengthening agent in the conventional formulation is a high wear-resistant carbon black, and particle size carbon black is more little, and structure is high more, volume specific resistance is low more, the tensile strength height is selected fast extrusion carbon black for use in prescription, its particle diameter ratio high wear-resistant carbon black is big, the texture ratio high wear-resistant carbon black is little, but therefore volume specific resistance selects fast extrusion carbon black for use than high wear-resistant carbon black height, can guarantee that the tensile strength height can guarantee high volume specific resistance again, volume specific resistance is got over high conductivity and is reduced, and electrochemical corrosion resistant is good more.
The beautiful powder of silicon is derived from quartzy and kaolinic natural combination is open structure, as weighting agent, and the surfactivity height, good dispersity, expressing technique is good, and the beautiful powder structure of silicon is cellular, and compression set is little, and insulativity is good.Because carbon black has electroconductibility, the consumption conference reduces volume specific resistance, therefore needs to add weighting agent, to reduce the sooty consumption, guarantee high volume specific resistance, weighting agent is generally potter's clay, lime carbonate, talcum powder in the traditional method, to the effect that rubber is just filled, compression set is very big.The present invention selects for use the beautiful powder of silicon to do weighting agent, can guarantee that high volume specific resistance can guarantee low compression set again, so that improve electrochemical corrosion resistant and high temperature resistant deformability.
The magnesium oxide acid acceptor, neutralization is acid, and vulcanization reaction is carried out under alkaline condition, can improve vulcanization rate.
2,2,4-trimethylammonium-1,2-dihydro quinoline woods polymer is oxidation inhibitor, its role is to suppress the oxidation chain reaction of rubber, prolongs goods work-ing life.
Polyoxyethylene glycol, the diisopropylbenzene(DIPB) alcohol crystallisate that the reaction of dissolving peroxide cure generates makes product surface smooth, attractive in appearance.
Vulcanization system preferred, the vulcanization system of terpolymer EP rubber has peroxide vulcanizing system, sulphur-donor vulcanization system, sulfur cross-linking system, cross-link bond that forms in these three kinds of vulcanization systems and bond energy be respectively C-C (C-C-), bond energy 353KJ/mol, monosulfidic bond are (C-S-C-), (C-S-S-C-), bond energy is 270KJ/mol for bond energy 286KJ/mol, cystine linkage.The bond energy of cross-link bond is high more, and thermotolerance is good more.The present invention has selected peroxide vulcanizing system for use, and its thermotolerance is best.1, two (t-butylperoxy di-isopropyl) benzene of 3-, peroxide vulcanizing agent can make sizing material high temperature resistant, good springiness.
Triallylcyanurate, additional crosslinker, the crosslinking degree of raising peroxide cure is accelerated vulcanization rate, and compression set is little.
Paraffin oil is softening agent, improves processing characteristics, improves flexibility and lower temperature resistance.
The EPT rubber composition that the present invention is made up of above-mentioned component can be made and has high temperature resistant, the excellent resistance of electrochemical corrosion resistant and have the flexible pipe of abundant physical property (as lower temperature resistance, anti-ozone, anti-weather-aging property).
Flexible pipe comprises rubber internal layer, skin and the enhancement Layer between rubber internal layer, skin, and rubber internal layer, skin are to be formed by above-mentioned arbitrary EPT rubber composition.
The present invention is the 3rd monomeric terpolymer EP rubber, carbon black, the beautiful powder of silicon by selecting VNB for use, peroxide vulcanizing system realize to be made and to be had high temperature resistant, the excellent resistance of electrochemical corrosion resistant and have the flexible pipe of abundant physical property (as lower temperature resistance, anti-ozone, anti-weather-aging property).
The preparation method of EPT rubber composition of the present invention and flexible pipe
1, refining glue: by Banbury mixer, opening rubber mixing machine each component of above-mentioned EPT rubber composition being prepared into rubber unvulcanizate, mixing used time, temperature and do not have special restriction, is to decide by mixing used device.Melting temperature is preferably 100 ℃～160 ℃, and mixing time is preferably 3～8 minutes.
2, the preparation of flexible pipe:
1. the straight type forcing machine of single screw rod extruded rubber internal layer;
2. knitting machine braiding enhancement Layer, but preferred polyester fiber, tynex.
3. single screw rod T type forcing machine extruded rubber skin;
3, sulfuration:
Flexible pipe is put into the steam vulcanization kettle cure, 150 ℃～170 ℃ of curing temperatures, 20～40 minutes time.
The flexible pipe of preparation be that rubber layer is that EPT rubber composition forms.Be applied to automobile cooling water pipe and should have very high high thermal resistance and electrochemical corrosion resistant.
Embodiment
Flexible pipe according to EPT rubber composition prescription of the present invention and preparation is described as follows table below, and the proportioning of the component of prescription is a mass fraction, adopts common preparation method in the summary of the invention as flexible pipe, lists file names with their corresponding performance perameter.
In the foregoing description and the Comparative Examples, DCPD-EPDM is that the 3rd monomer is the terpolymer EP rubber of dicyclopentadiene, ENB-EPDM is that the 3rd monomer is the terpolymer EP rubber of methene norbornene, VNB-EPDM is that the 3rd monomer is the terpolymer EP rubber of the inferior ethene 2-of 5-norbornylene, and these three kinds of terpolymer EP rubbers are with VNB-EPDM thermotolerance optimum.
Can find out by the foregoing description and Comparative Examples, the terpolymer EP rubber of preferred the 3rd monomer VNB, carbon black, the beautiful powder of silicon, peroxide vulcanizing system can be made and has flexible pipe high temperature resistant, the excellent resistance of electrochemical corrosion resistant.Its thermotolerance of flexible pipe performance: 170 ℃ of resistant to heat aging elongations of * 94h are-7.9%, 170 ℃ of * 22h compression sets 60%, electrochemical corrosion resistant: volume specific resistance 1 * 10
12Ω .cm, 115 ℃ * 12V of electrochemical degradation * 504h flawless.The flexible pipe of preparation is applied to automobile cooling water pipe and should has very high high thermal resistance and electrochemical corrosion resistant.
Claims (3)
1. EPT rubber composition is characterized in that component and mass fraction are as follows:
100 parts of terpolymer EP rubbers,
Fast 60～80 parts of the carbon blacks that extrude,
30～50 parts in the beautiful powder of silicon,
40～60 parts of paraffin oils,
5 parts in magnesium oxide,
2,2,4-trimethylammonium-1,1 part of 2-dihydro quinoline woods polymer,
5 parts of polyoxyethylene glycol,
1,7.5 parts of two (t-butylperoxy di-isopropyl) benzene of 3-,
0.5 part of triallylcyanurate.
2. EPT rubber composition as claimed in claim 1 is characterized in that terpolymer EP rubber is a VNB type terpolymer EP rubber, and the 3rd monomer is the inferior ethene 2-of a 5-norbornylene.
3. adopt the flexible pipe of the EPT rubber composition preparation of claim 1, it is characterized in that rubber layer is that EPT rubber composition forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010565967 CN102010551A (en) | 2010-11-30 | 2010-11-30 | EPDM (ethylene-propylene-diene monomer) composition and hose |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010565967 CN102010551A (en) | 2010-11-30 | 2010-11-30 | EPDM (ethylene-propylene-diene monomer) composition and hose |
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| CN102010551A true CN102010551A (en) | 2011-04-13 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532633A (en) * | 2011-12-15 | 2012-07-04 | 安徽金桥电缆有限公司 | Chloroprene rubber sheath and preparation method thereof |
| CN103819824A (en) * | 2014-03-11 | 2014-05-28 | 浙江久运车辆部件有限公司 | High-temperature-resistant automobile radiator hose ethylene-propylene-diene monomer material |
| CN104513433A (en) * | 2014-12-17 | 2015-04-15 | 建新赵氏集团有限公司 | Preparation method of high-temperature-resistant and anti-fatigue modified ethylene propylene diene monomer rubber |
| CN105051438A (en) * | 2013-03-26 | 2015-11-11 | 住友理工株式会社 | Hose |
| CN105385053A (en) * | 2015-12-21 | 2016-03-09 | 天津鹏翎胶管股份有限公司 | R1234yf air-conditioning hose inner-layer rubber composition, preparation method and air-conditioning hose |
| CN105504544A (en) * | 2015-12-31 | 2016-04-20 | 珠海云智新材料科技有限公司 | Acid-resisting low-compression permanent set rubber composite material and preparing method |
| CN111019244A (en) * | 2019-12-25 | 2020-04-17 | 天津鹏翎集团股份有限公司 | Rubber material, cooling rubber pipe prepared from rubber material and automobile engine comprising cooling rubber pipe |
| CN112126166A (en) * | 2020-09-29 | 2020-12-25 | 一汽解放汽车有限公司 | Ethylene propylene diene monomer composition, rubber tube, and preparation method and application thereof |
| CN113234288A (en) * | 2021-05-11 | 2021-08-10 | 绍兴市上虞舜东橡塑制品有限公司 | High-heat-resistance ethylene propylene rubber tube based on multi-dimensional nano-structure material modification and preparation method thereof |
| CN114702761A (en) * | 2022-04-26 | 2022-07-05 | 安徽中鼎密封件股份有限公司 | Rubber material for sealing element resistant to ultrahigh temperature and low pressure change and preparation method thereof |
| CN114957864A (en) * | 2022-04-18 | 2022-08-30 | 浙江丰茂科技股份有限公司 | High-pressure and high-temperature resistant rubber for high-resistance cooling pipeline |
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| CN1496943A (en) * | 2002-10-24 | 2004-05-19 | 住友橡胶工业株式会社 | Elastic composition and rubber roll using said composition |
| CN101323691A (en) * | 2008-07-11 | 2008-12-17 | 贵州戴斯威特橡胶有限公司 | High temperature resistant vehicle radiator hose sizing compound formula |
| CN101550254A (en) * | 2009-05-08 | 2009-10-07 | 尤建义 | Preparation technique of high temperature resistant, anti-corona high-resistance ethylene propylene terpolymer |
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2010
- 2010-11-30 CN CN 201010565967 patent/CN102010551A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1496943A (en) * | 2002-10-24 | 2004-05-19 | 住友橡胶工业株式会社 | Elastic composition and rubber roll using said composition |
| CN101323691A (en) * | 2008-07-11 | 2008-12-17 | 贵州戴斯威特橡胶有限公司 | High temperature resistant vehicle radiator hose sizing compound formula |
| CN101550254A (en) * | 2009-05-08 | 2009-10-07 | 尤建义 | Preparation technique of high temperature resistant, anti-corona high-resistance ethylene propylene terpolymer |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532633A (en) * | 2011-12-15 | 2012-07-04 | 安徽金桥电缆有限公司 | Chloroprene rubber sheath and preparation method thereof |
| CN102532633B (en) * | 2011-12-15 | 2013-10-09 | 安徽金桥电缆有限公司 | Chloroprene rubber sheath and preparation method thereof |
| CN105051438B (en) * | 2013-03-26 | 2016-11-09 | 住友理工株式会社 | Flexible pipe |
| CN105051438A (en) * | 2013-03-26 | 2015-11-11 | 住友理工株式会社 | Hose |
| CN103819824A (en) * | 2014-03-11 | 2014-05-28 | 浙江久运车辆部件有限公司 | High-temperature-resistant automobile radiator hose ethylene-propylene-diene monomer material |
| CN103819824B (en) * | 2014-03-11 | 2016-01-20 | 浙江久运车辆部件有限公司 | High temperature resistant vehicle radiator hose EPDM |
| CN104513433A (en) * | 2014-12-17 | 2015-04-15 | 建新赵氏集团有限公司 | Preparation method of high-temperature-resistant and anti-fatigue modified ethylene propylene diene monomer rubber |
| CN105385053B (en) * | 2015-12-21 | 2018-06-01 | 天津鹏翎胶管股份有限公司 | A kind of R1234yf air-conditioner pipes internal layer glue composition, preparation method and air conditioning hose |
| CN105385053A (en) * | 2015-12-21 | 2016-03-09 | 天津鹏翎胶管股份有限公司 | R1234yf air-conditioning hose inner-layer rubber composition, preparation method and air-conditioning hose |
| CN105504544A (en) * | 2015-12-31 | 2016-04-20 | 珠海云智新材料科技有限公司 | Acid-resisting low-compression permanent set rubber composite material and preparing method |
| CN111019244A (en) * | 2019-12-25 | 2020-04-17 | 天津鹏翎集团股份有限公司 | Rubber material, cooling rubber pipe prepared from rubber material and automobile engine comprising cooling rubber pipe |
| CN112126166A (en) * | 2020-09-29 | 2020-12-25 | 一汽解放汽车有限公司 | Ethylene propylene diene monomer composition, rubber tube, and preparation method and application thereof |
| CN113234288A (en) * | 2021-05-11 | 2021-08-10 | 绍兴市上虞舜东橡塑制品有限公司 | High-heat-resistance ethylene propylene rubber tube based on multi-dimensional nano-structure material modification and preparation method thereof |
| CN113234288B (en) * | 2021-05-11 | 2022-07-08 | 绍兴市上虞舜东橡塑制品有限公司 | High-heat-resistance ethylene propylene rubber tube based on multi-dimensional nano-structure material modification and preparation method thereof |
| CN114957864A (en) * | 2022-04-18 | 2022-08-30 | 浙江丰茂科技股份有限公司 | High-pressure and high-temperature resistant rubber for high-resistance cooling pipeline |
| CN114702761A (en) * | 2022-04-26 | 2022-07-05 | 安徽中鼎密封件股份有限公司 | Rubber material for sealing element resistant to ultrahigh temperature and low pressure change and preparation method thereof |
| CN114702761B (en) * | 2022-04-26 | 2023-11-17 | 安徽中鼎密封件股份有限公司 | Rubber material for sealing element resistant to ultrahigh temperature and low pressure change and preparation method thereof |
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Application publication date: 20110413 |