CN108485078A - A kind of ethylene propylene diene rubber rubber compound and ethylene propylene diene rubber hose - Google Patents
A kind of ethylene propylene diene rubber rubber compound and ethylene propylene diene rubber hose Download PDFInfo
- Publication number
- CN108485078A CN108485078A CN201810135735.3A CN201810135735A CN108485078A CN 108485078 A CN108485078 A CN 108485078A CN 201810135735 A CN201810135735 A CN 201810135735A CN 108485078 A CN108485078 A CN 108485078A
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- ethylene propylene
- propylene diene
- diene rubber
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- rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of ethylene propylene diene rubber rubber compounds, are made of following mass parts raw material：100 parts of ethylene propylene diene rubber, 3~10 parts of zinc oxide, 0.5~2 part of stearic acid, 1~5 part of polyethylene glycol, 0.1~0.8 part of vulcanizing agent, 0.5~2.5 part of Carbamates accelerating agent, 0.5~2 part of accelerant CZ, diphenylguanidine TDC0.5~3 part, 70 0.5~3 parts of accelerating agent TBzTD, 1.5~5 parts of anti-aging agent, 55~75 parts of N550 carbon blacks, 20~40 parts of N330 carbon blacks, 2,280 10~25 parts of paraffin oils.The invention also discloses a kind of ethylene propylene diene rubber hoses, are made of hose lining, enhancement layer, outer layer glue, and inside and outside glue-line is made of the ethylene propylene diene rubber rubber compound.Ethylene propylene diene rubber hose of the present invention in the production and use process, inhibits the generation of nitrosamine from the root cause, and enhancement layer damage is low, has longer service life.
Description
Technical field
The invention belongs to rubber materials, it is related to a kind of ethylene propylene diene rubber rubber compound and is kneaded with the ethylene propylene diene rubber
Glue is the ethylene propylene diene rubber hose of low damage, environmental protection made of raw material.
Background technology
With the fast development of automobile industry, increasingly higher demands, high speed, peace are proposed to the quality of rubber product
Entirely, comfortable, energy saving and it is environmentally friendly be contemporary automotive performance pursue target.Currently, being used to produce automobile rubber flexible pipe on the market
Glue kind has tens kinds, and there are commonly natural rubber, butadiene-styrene rubber, ethylene propylene diene rubber, chlorinated scoline, nitrile rubber, hydrogen
Change nitrile rubber, neoprene, chlorosulfonated polyethylene, haloflex and fluorubber, wherein ethylene propylene diene rubber is as a kind of
Elastic good, wear-resisting, heat-resisting, weatherability, resistance to ozone and the resistance to extraordinary rubber of fresh water performance, and it comes as synthetic rubber
Source is extensive, is increasingly favored by automobile rubber flexible pipe manufacturer, this has also attracted numerous experts to go to capture ethylene-propylene-diene monomer
Technical barrier of the glue in automobile rubber flexible pipe application.
In order to meet the intensity requirement of ethylene propylene diene rubber hose, hose is made of rubber-framework material-rubber.Ternary
EP rubbers (EPDM) belongs to the rubber of saturated structures, and intramolecule does not contain double bond, it is good to represent its ageing-resistant performance.But three
Double bond content is few in first EP rubbers, limited to the absorption of oxynitrides, and the collocation of traditional vulcanizing agent, accelerating agent using
Dimethyl secondary amine is will produce, dimethyl secondary amine and air in producing and using using ethylene propylene diene rubber as the sebific duct of raw material are caused
In oxynitrides reaction generate the carcinogens such as N-nitrosodimethylamine, be volatized into air, health caused to hinder
Evil.The ethylene propylene diene rubber hose of environmental protection does not require nothing more than external boundary's free of air pollution, also requires to human health no damage, to reach
To environmental protection purpose it is necessary to the vulcanizing agent of ethylene propylene diene rubber, accelerating agent collocation on spend some time.
In addition, vulcanizing agent, accelerating agent collocation are unreasonable in traditional ethylene propylene diene rubber rubber compound, it is easy to cause rubber generation
Acid or alkalinity substance, causes the decomposition of sebific duct middle skeleton material polyester line, influences quality and the service life of product.
Invention content
It is an object of the invention to provide a kind of ethylene propylene diene rubber rubber compounds, are prepared with the ethylene propylene diene rubber rubber compound soft
Pipe, fundamentally making ethylene propylene diene rubber hose in the production and use process reduces the amount for generating carcinogenicity nitrosamine and makes it
Rubber compound can not be volatilized, realizes the environmental requirement of sebific duct, while reducing ethylene propylene diene rubber hose and producing and using process
In to the degree of injury of polyester line, and then improve the service life of hose.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of ethylene propylene diene rubber rubber compound, it is made of the raw material of following mass parts：Ethylene propylene diene rubber 100
Part, 3~10 parts of zinc oxide, 0.5~2 part of stearic acid, 1~5 part of polyethylene glycol, 0.1~0.8 part of vulcanizing agent, Carbamates
0.5~2.5 part of accelerating agent, 0.5~2 part of accelerant CZ, 0.5~3 part of diphenylguanidine TDC, accelerating agent TBzTD-70 0.5~3
Part, 1.5~5 parts of anti-aging agent, 55~75 parts of N550 carbon blacks, 20~40 parts of N330 carbon blacks, 2,280 10~25 parts of paraffin oils.
Preferably, ethylene propylene diene rubber rubber compound of the present invention is made of the raw material of following mass parts：Ternary
100 parts of EP rubbers, 3~10 parts of zinc oxide, 0.5~2 part of stearic acid, 1~4 part of polyethylene glycol, 0.3~0.8 part of vulcanizing agent, ammonia
0.6~2.2 part of base formiate accelerating agent, 0.5~1.8 part of accelerant CZ, 0.5~2.5 part of diphenylguanidine TDC, accelerating agent
0.8~3 part of TBzTD-70,1.5~5 parts of anti-aging agent, 55~75 parts of N550 carbon blacks, 20~40 parts of N330 carbon blacks, 2280 paraffin oils
10~22 parts.
Preferably, the anti-aging agent is the combination of anti-aging agent RD and antioxidant 4010NA；Every 100 mass parts EPDM
Rubber uses 1~3 mass parts anti-aging agent RD, 0.5~2 mass parts antioxidant 4010NA.
The polyethylene glycol is PEG4000.The molecular weight of PEG4000 is medium and the compatibility of ethylene propylene diene rubber compared with
It is good.The molecular weight of 2280 paraffin oils is larger, preferable with the compatibility of ethylene propylene diene rubber, is not easy to be extracted.
The vulcanizing agent is sulphur.
The Carbamates accelerating agent is accelerating agent ZBEC.
Another object of the present invention provides the preparation method of the ethylene propylene diene rubber rubber compound, including：In temperature
At 20~30 DEG C, ethylene propylene diene rubber is plasticated 1~3min in open mill, and fines is added after uniform packet roller：Zinc oxide, tristearin
Filler is added after being kneaded 2~5min in acid, anti-aging agent, packet roller：N550 carbon blacks, N330 carbon blacks and oil plant：2280 paraffin oils mixing 4~
8min is eventually adding accelerating agent and vulcanizing agent and is kneaded 2~5min, roll spacing is adjusted to minimum thin 6 times logical, goes out after making a call to three triangle bags
Piece, rubber compound vulcanize after being parked at 20~30 DEG C 1 day on vulcanizing press, 155~160 DEG C of curing temperature, sulfide stress
12~13Mpa, 30~40min of vulcanization time obtain the ethylene propylene diene rubber rubber compound.
It is a further object to provide the ethylene propylene diene rubber hose of a kind of low damage, environmental protection, the hoses
Be made of inner glue layer, enhancement layer and outer glue-line, the enhancement layer is formed in the inner glue layer by polyester line cladding, it is described it is interior,
Outer glue-line is made of ethylene propylene diene rubber rubber compound of the present invention.
The thickness of the inner glue layer is 0.8~1.5mm；0.1~0.3mm of thickness of the enhancement layer；Described is outer
The thickness of glue-line is 1.5~2.0mm.
The preparation method of ethylene propylene diene rubber hose of the present invention, including：Ethylene propylene diene rubber rubber compound is by squeezing
Go out machine extruding pipe embryo, as inner glue layer, polyester line is coated on pipe embryo and forms enhancement layer；The hose for coating enhancement layer is passed through
Internal model, ethylene propylene diene rubber rubber compound squeeze out the outer glue-line of hose by extruder, are vacuumized in the head of extruder when extrusion,
Control relative degree of vacuum in the head of extruder makes outer layer glue laminating enhancement layer, sebific duct obtained park in 0.03~0.04MPa
4~8h discharges the stress in extrusion to rubber compound and sebific duct self-control is allowed to reach equilibrium state, and core is inserted into sebific duct
Stick is placed in 150~155 DEG C of vulcanization 30~60min sizings in vulcanizing tank, extracts plug, clean to get rubber hose.
The polyester line is coated on pipe embryo by way of weaving or winding and forms enhancement layer.
The present invention uses accelerating agent TBzTD-70, accelerating agent ZBEC and diphenylguanidine TDC, during vulcanization reaction, promotes
Agent TBzTD-70 and accelerating agent ZBEC generates dibenzyl nitrosamine, the nitrosamine carcinogenic and molecular weight is larger, it is difficult to from
It volatilizees away in rubber compound；And diphenylguanidine TDC does not contain secondary amine structure, inhibits the generation of low molecular weight secondary amine from source, keeps away
Exempt from secondary amine and react generation carcinogenicity nitrosamine with oxynitrides, reduces the carcinogenicity nitrous during production of hose and generation
The generation of amine achievees the purpose that environmental protection.Secondly, the present invention by control vulcanizing agent and accelerating agent dosage, avoid vulcanizing agent and
The very few effect for being difficult to play vulcanizing system of accelerator dosage, curingprocess rate is too slow, can not meet the demand of production, avoids simultaneously
The problem of dosage excessively causes rubber compound to be easy bloom.Furthermore promoted using conventional thuriam acceserator, Carbamates
Agent, two thio amine type accelerators, the amine substance generated in vulcanization reaction are enough to influence the acid-base property of rubber compound so that rubber compound
Acid-base value deviate neutral value, i.e. pH value is more than 8.0, causes rubber compound and polyester line that can corrode polyester line, ternary second when contacting
Third rubber hose rubber compound when high temperature vulcanized also provides alkaline condition for poly- ester hydrolysis, to increase rubber compound to poly-
The degree of injury of ester line reduces the service life of ethylene propylene diene rubber hose, and inventor is by adjusting the type of accelerating agent, vulcanizing
The dosage of agent and accelerating agent ensures not generating a large amount of amine substances in sulfidation to not generate the acid-base value of rubber compound
Substantial effect, while the PEG4000 by controlling the carbon black and meta-alkalescence of slant acidity, it is ensured that the pH of rubber compound is 7 or so, greatly
The big degree of injury reduced in sulfidation to polyester line.
Compared with prior art, beneficial effects of the present invention：
Ethylene propylene diene rubber hose of the present invention does not generate the carcinogenic substances such as N-nitrosodimethylamine in the production and use process
Matter, and the degree that rubber hinders polyester line loss in ethylene propylene diene rubber hose is effectively reduced, it is soft to improve ethylene propylene diene rubber
The service life of pipe.
Specific implementation mode
Technical scheme of the present invention is described further below by specific implementation mode.
It is a kind of it is low damage, environmental protection ethylene propylene diene rubber hose, from interior outward by inner glue layer, enhancement layer and outer glue-line group
At the enhancement layer is formed in the inner glue layer by polyester line cladding, and the sizing material of the inside and outside glue-line is ethylene propylene diene rubber
Rubber compound, raw material and mass fraction are shown in Table 1.
The production technology of the ethylene propylene diene rubber rubber compound is as follows：
Each raw material is weighed according to table 1, at 20~30 DEG C of temperature, ethylene propylene diene rubber is plasticated 2min in open mill, is waited for
Fines is added after uniform packet roller：Filler is added after being kneaded 3min in zinc oxide, stearic acid, anti-aging agent, packet roller：N550 carbon blacks, N330
Carbon black and oil plant：2280 paraffin oils are kneaded 6min, are eventually adding accelerating agent and vulcanizing agent is kneaded 3min, roll spacing is adjusted to minimum
It is thin 6 times logical, slice after 3 triangle bags is made a call to, rubber compound is for use after being parked at 20~30 DEG C 1 day, vulcanizes on vulcanizing press
Test piece, 160 DEG C, sulfide stress 13Mpa, vulcanization time 30min of curing temperature obtain.
The production technology of rubber hose is as follows：
Extruder is arranged, and (90 extruders, draw ratio are 16:1) each area's temperature (spout：40 DEG C, fuselage 1：50 DEG C, fuselage
2：60 DEG C, screw rod：65 DEG C, head：75 DEG C), screw speed：5~8r/min, by ethylene propylene diene rubber rubber compound obtained above
It is 9mm by extruder extrusion internal diameter, the pipe embryo that thickness is 1.2mm, as inner glue layer；Pass through volume with braider or wrapping machine again
Polyester line is coated on the enhancement layer that thickness 0.2mm is formed on pipe embryo by the mode knitted or wound；The hose of enhancement layer will be coated
By internal model, each area's temperature (spout of extruder is controlled：40 DEG C, fuselage 1：50 DEG C, fuselage 2：60 DEG C, screw rod：65 DEG C, head：
75 DEG C), screw speed：5~8r/min is vacuumized in the head of extruder, is controlled relative degree of vacuum in the head of extruder and exist
Ethylene propylene diene rubber rubber compound is squeezed out the outer glue-line that wall thickness is 1.7mm, glue obtained by 0.03~0.04MPa by extruder
Pipe parks 6h, and plug is inserted into hose, puts 155 DEG C of sulfurizing pot vulcanization 30min into, extracts plug, can be prepared by rubber after cleaning
Glue hose.
The raw material and proportioning (mass unit of 1 embodiment 1-4 of table and comparative example ethylene propylene diene rubber rubber compound：Gram)
| Raw material | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 |
| Ethylene propylene diene rubber 4045M | 100 | 100 | 100 | 100 | 100 |
| Zinc oxide | 3 | 5 | 10 | 5 | 5 |
| Stearic acid | 0.5 | 1 | 2 | 1 | 1 |
| Polyethylene glycol | 1 | 2.5 | 4 | 5 | 2.5 |
| Sulphur | 0.3 | 0.5 | 0.8 | 0.1 | 0.5 |
| Accelerant CZ | 0.5 | 1 | 1.8 | 2 | 1 |
| Diphenylguanidine TDC | 0.5 | 1.5 | 2.5 | 3 | 0 |
| Diphenylguanidine TDM | 0 | 0 | 0 | 0 | 1.5 |
| Accelerating agent TBzTD-70 | 0.8 | 2 | 3 | 0.5 | 0 |
| Vulcanization accelerator TMTD | 0 | 0 | 0 | 0 | 2 |
| Accelerating agent ZBEC | 0.6 | 1.4 | 2.5 | 0.5 | 0 |
| Accelerant B Z | 0 | 0 | 0 | 0 | 1.4 |
| Anti-aging agent RD | 1 | 2 | 3 | 2 | 2 |
| Antioxidant 4010NA | 0.5 | 1 | 2 | 1 | 1 |
| N550 carbon blacks | 55 | 65 | 75 | 75 | 65 |
| N330 carbon blacks | 20 | 30 | 40 | 30 | 30 |
| 2280 paraffin oils | 10 | 16 | 22 | 25 | 16 |
| It is total | 193.7 | 228.9 | 268.6 | 250.1 | 228.9 |
Performance detection is carried out to the ethylene propylene diene rubber rubber compound and rubber hose of embodiment 1-4 and comparative example 1, such as table 2
It is shown.
2 embodiment 1-4 of table and the EP rubbers rubber compound of comparative example 1 and the performance parameter of hose
As shown in Table 2, compared with comparative example 1, the hose burst strength of embodiment 1-4 significantly improves, polyester in enhancement layer
Line loss wound is obviously reduced, and inhibits the generation of dimethyl secondary amine from the root cause, and then reaches during production process and use
The purpose of carcinogenicity nitrosamine is not generated.
Claims (10)
1. a kind of ethylene propylene diene rubber rubber compound, it is characterised in that it is made of the raw material of following mass parts：EPDM
100 parts of rubber, 3~10 parts of zinc oxide, 0.5~2 part of stearic acid, 1~5 part of polyethylene glycol, 0.1~0.8 part of vulcanizing agent, amino first
0.5~2.5 part of Barbiturates accelerating agent, 0.5~2 part of accelerant CZ, 0.5~3 part of diphenylguanidine TDC, accelerating agent TBzTD-70
0.5~3 part, 1.5~5 parts of anti-aging agent, 55~75 parts of N550 carbon blacks, 20~40 parts of N330 carbon blacks, 2,280 10~25 parts of paraffin oils.
2. ethylene propylene diene rubber rubber compound according to claim 1, it is characterised in that it is by the raw material of following mass parts
It is manufactured：100 parts of ethylene propylene diene rubber, 3~10 parts of zinc oxide, 0.5~2 part of stearic acid, 1~4 part of polyethylene glycol, vulcanizing agent
0.3~0.8 part, 0.6~2.5 part of Carbamates accelerating agent, 0.5~1.8 part of accelerant CZ, diphenylguanidine TDC0.5~
2.5 parts, 0.8~3 part of accelerating agent TBzTD-70,1.5~5 parts of anti-aging agent, 55~75 parts of N550 carbon blacks, N330 carbon blacks 20~40
Part, 2,280 10~22 parts of paraffin oils.
3. ethylene propylene diene rubber rubber compound according to claim 1 or 2, it is characterised in that the anti-aging agent is anti-aging agent
The combination of RD and antioxidant 4010NA；Every 100 mass parts ethylene propylene diene rubber uses 1~3 mass parts anti-aging agent RD, 0.5~2 matter
Measure part antioxidant 4010NA.
4. ethylene propylene diene rubber rubber compound according to claim 1, it is characterised in that the polyethylene glycol is
PEG4000。
5. ethylene propylene diene rubber rubber compound according to claim 1, it is characterised in that the vulcanizing agent is sulphur；It is described
Carbamates accelerating agent be accelerating agent ZBEC.
6. the preparation method of ethylene propylene diene rubber rubber compound described in claim 1, it is characterised in that including：In temperature 20~30
At DEG C, ethylene propylene diene rubber is plasticated 1~3min in open mill, and zinc oxide, stearic acid, anti-aging agent are added after uniform packet roller,
Packet roller is kneaded 2~5min, adds N550 carbon blacks, N330 carbon blacks, 2280 paraffin oils and is kneaded 4~8min, is eventually adding accelerating agent
It is kneaded 2~5min with vulcanizing agent, roll spacing is adjusted to minimum thin 6 times logical, makes a call to slice after three triangle bags, rubber compound is at 20~30 DEG C
Under park 1 day after vulcanize on vulcanizing press, 155~160 DEG C, 12~13Mpa of sulfide stress of curing temperature, vulcanization time 30
Ethylene propylene diene rubber rubber compound is made in~40min.
7. it is a kind of it is low damage, environmental protection ethylene propylene diene rubber hose, it is characterised in that the hose by inner glue layer, enhancement layer and
Outer glue-line forms, and the enhancement layer is formed in the inner glue layer by polyester line cladding, and the inside and outside glue-line is by claim
Ethylene propylene diene rubber rubber compound described in 1 is made.
8. the ethylene propylene diene rubber hose according to claim 7, it is characterised in that the thickness of the inner glue layer
For 0.8~1.5mm；0.1~0.3mm of thickness of the enhancement layer；The thickness of the outer glue-line is 1.5~2.0mm.
9. the preparation method of the ethylene propylene diene rubber hose described in claim 7, it is characterised in that including：EPDM
It is rubber mixed to pass through extruder extruding pipe embryo, as inner glue layer；Polyester line is coated on pipe embryo and forms enhancement layer；It will cladding
The hose of enhancement layer squeezes out the outer glue-line of hose, the machine of extruder by extruder by internal model, ethylene propylene diene rubber rubber compound
Being vacuumized in head makes outer layer glue laminating enhancement layer be inserted into plug in sebific duct after sebific duct obtained parks 4~8h, is placed in vulcanization
150~155 DEG C of 30~60min of vulcanization, extract plug in tank, clean to get rubber hose.
10. the preparation method of the ethylene propylene diene rubber hose according to claim 9, it is characterised in that described is poly-
Ester line is coated on pipe embryo by way of weaving or winding and forms enhancement layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810135735.3A CN108485078A (en) | 2018-02-09 | 2018-02-09 | A kind of ethylene propylene diene rubber rubber compound and ethylene propylene diene rubber hose |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810135735.3A CN108485078A (en) | 2018-02-09 | 2018-02-09 | A kind of ethylene propylene diene rubber rubber compound and ethylene propylene diene rubber hose |
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| CN108485078A true CN108485078A (en) | 2018-09-04 |
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| CN201810135735.3A Pending CN108485078A (en) | 2018-02-09 | 2018-02-09 | A kind of ethylene propylene diene rubber rubber compound and ethylene propylene diene rubber hose |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109486037A (en) * | 2018-11-21 | 2019-03-19 | 四川福翔科技有限公司 | Applied to the composition of preparation cleaning sebific duct, preparation method and cleaning sebific duct |
| CN110511449A (en) * | 2019-09-16 | 2019-11-29 | 中交第一公路勘察设计研究院有限公司 | A kind of resistance to ultraviolet extremely cold area shock mount composite material and preparation method of resistance to ozone |
| CN111171407A (en) * | 2019-12-31 | 2020-05-19 | 浙江久运汽车零部件有限公司 | Water outlet hose of water pump of battery cooling loop of electric automobile and preparation method of water outlet hose |
| CN112377687A (en) * | 2020-11-30 | 2021-02-19 | 安徽恒荣高分子科技有限公司 | Shaped fuel oil rubber pipe and processing method thereof |
| CN113372656A (en) * | 2021-05-31 | 2021-09-10 | 南京利德东方橡塑科技有限公司 | Environment-friendly, low-cost and high-performance railway brake pipe |
| CN116003917A (en) * | 2022-11-10 | 2023-04-25 | 南京利德东方橡塑科技有限公司 | Environment-friendly oil-resistant ethylene propylene rubber composition for light-colored rubber tubes and preparation method thereof |
-
2018
- 2018-02-09 CN CN201810135735.3A patent/CN108485078A/en active Pending
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486037A (en) * | 2018-11-21 | 2019-03-19 | 四川福翔科技有限公司 | Applied to the composition of preparation cleaning sebific duct, preparation method and cleaning sebific duct |
| CN110511449A (en) * | 2019-09-16 | 2019-11-29 | 中交第一公路勘察设计研究院有限公司 | A kind of resistance to ultraviolet extremely cold area shock mount composite material and preparation method of resistance to ozone |
| CN110511449B (en) * | 2019-09-16 | 2021-09-07 | 中交第一公路勘察设计研究院有限公司 | Ozone-resistant ultraviolet-resistant extreme cold area damping support composite material and preparation method thereof |
| CN111171407A (en) * | 2019-12-31 | 2020-05-19 | 浙江久运汽车零部件有限公司 | Water outlet hose of water pump of battery cooling loop of electric automobile and preparation method of water outlet hose |
| CN112377687A (en) * | 2020-11-30 | 2021-02-19 | 安徽恒荣高分子科技有限公司 | Shaped fuel oil rubber pipe and processing method thereof |
| CN113372656A (en) * | 2021-05-31 | 2021-09-10 | 南京利德东方橡塑科技有限公司 | Environment-friendly, low-cost and high-performance railway brake pipe |
| CN113372656B (en) * | 2021-05-31 | 2023-01-31 | 南京利德东方橡塑科技有限公司 | Environment-friendly, low-cost and high-performance railway brake pipe |
| CN116003917A (en) * | 2022-11-10 | 2023-04-25 | 南京利德东方橡塑科技有限公司 | Environment-friendly oil-resistant ethylene propylene rubber composition for light-colored rubber tubes and preparation method thereof |
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