CN103836275A - Ethylene propylene diene monomer (EPDM) environment-friendly rubber tube and manufacturing method thereof - Google Patents
Ethylene propylene diene monomer (EPDM) environment-friendly rubber tube and manufacturing method thereof Download PDFInfo
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- CN103836275A CN103836275A CN201410067778.4A CN201410067778A CN103836275A CN 103836275 A CN103836275 A CN 103836275A CN 201410067778 A CN201410067778 A CN 201410067778A CN 103836275 A CN103836275 A CN 103836275A
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- 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
- F16L11/083—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 three or more layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/0288—Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process
- B29C35/0294—Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process using tempering units for temperature control of moulds or cores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
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- 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
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Polymers & Plastics (AREA)
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Abstract
The invention relates to an ethylene propylene diene monomer (EPDM) environment-friendly rubber tube and a manufacturing method of the EPDM environment-friendly rubber tube. The process of the EPDM environment-friendly rubber tube comprises the steps that (1) raw materials are weighed according to the proportion; (2) plastication and mixing are carried out, an internal mixer is adopted for mixing, mixing is carried out on EPDM for 60 seconds, then deodorant E500, magnesium oxide, stearic acid, dioctyl azelate and n-octyl n-decyl adipate are sequentially added to the processed EPDM, after mixing is carried out on the raw materials for 150 seconds, carbon black N550 and paraffin base oil are added, a pressing rod is lifted once every minute, and vulcanizing agent P-14, accelerant DM, accelerant TT, accelerant TAIC, accelerant PX and accelerant S95 are added to an open mill to obtain a rubber compound; (3) an inner rubber layer is extruded; (4) a reinforcing layer is woven; (5) an outer rubber layer is extruded to obtain a rubber tube blank; (6) vulcanization is carried out on a section of the tube blank to manufacture a rubber tube; (7) the rubber tube is soaked in liquid deodorant; (8) the rubber tube is put into an oven for high-temperature vulcanization, and a rubber finished product is manufactured. The EPDM environment-friendly rubber tube manufactured through the method is good in strength performance, stable in a high-temperature environment, and free of pungent smell.
Description
Technical field
The present invention relates to a kind of ethylene propylene diene rubber environmental protection sebific duct and manufacture method thereof, belong to rubber material preparing technical field.
Background technique
Along with the development innovation of technology, people are to be no longer satisfied with the requirement of riding instead of walk to automobile, passenger vehicle, and comfortable, environmental protection has also become the problem that people more and more pay close attention to.Therefore, auto manufacturing is on material is selected, and environmental requirement also improves thereupon.
Ethylene-propylene-diene monomer sebific duct is as one of component of automobile, passenger vehicle etc., and in the environment contacting with people, its environmental-protecting performance must reach certain requirement.But in order to make rubber material reach the performance requirement of regulation, conventionally in rubber, need to add a lot of compounding ingredients, after sebific duct moulding, can give out unavoidably like this penetrating odor and volatilize other material, cause the pollution to automobile, passenger vehicle environment.Therefore in the time selecting the compounding ingredient of ethylene propylene diene rubber, not only need to consider performance requirement, also want taking environmental conservation into consideration requirement.At present, there are clear and definite regulation in more domestic automobiles, passenger vehicle manufacturing company to the environmental requirement of part sebific duct, require sebific duct at 80 DEG C, to deposit after 2 hours (according to VDA270) oder levels and be less than and equal 3.5 grades, and carry out fog according to standard DIN75201B and detect and obtain result and require to be less than 5mg.
Summary of the invention
The object of the invention is in order to overcome in prior art ethylene propylene diene rubber moderate stimulation smell greatly, do not reach the shortcoming of environmental requirement, provide a kind of strength character good, stable ethylene propylene diene rubber and manufacture method thereof under hot environment.
The technical solution used in the present invention is as follows: ethylene propylene diene rubber environmental protection sebific duct, comprise inner glue layer, reinforced layer and outer glue-line, and described reinforced layer is closely wrapped in outside inner glue layer, and outer glue-line is coated on outside reinforced layer; Described reinforced layer be adopt polyester thread with braiding, the knitting or wrapped that is wound around on interior sebific duct and form; Described inner glue layer and outer glue-line are made up of ethylene propylene diene rubber.
Further, the pipe thickness of described environmental protection sebific duct is 3～6mm.
The present invention also protects a kind of manufacture method of ethylene propylene diene rubber environmental protection sebific duct, adopts following steps:
(1) weighing: take raw material according to following portions by weight proportioning, wherein inner glue layer raw material comprises: ethylene propylene diene rubber, 100 parts; Deodouring agent E500,3～20 parts; Magnesium oxide, 1～8 part; Stearic acid, 1～7 part; Fast carbon black N550,40～90 parts of extruding; Paraffine base crude oil, 10～40 parts; Vulcanzing agent P-14,0.5～8 part; Altax, 0.5～2 part; Promoter TT, 0.5～3 part; Promoter TAIC, 0.5～4 part, promoter PX, 0.5～1 part; Promoter S95,1～4 part;
Take outer glue-line raw material, described outer glue-line raw material is identical with inner glue layer composition of raw materials;
(2) plasticate, mixing: adopt mill and banbury to inner glue layer raw material and outer glue-line raw material plasticate respectively, mixing; First adopt banbury to carry out mixing, first put into ethylene propylene diene rubber mixing 60 seconds, then add successively deodouring agent E500, zine oxide, magnesium oxide, stearic acid, dioctyl azelate DOZ, n-octyl n-decyl adipate (NODA) NODA, mixing 150 seconds time, add carbon black N550 and paraffine base crude oil, per minute depression bar is carried once, in the time that temperature reaches more than 125 DEG C, start binder removal, in mill, add vulcanzing agent P-14, altax, promoter TT, promoter TAIC, promoter PX, promoter S95 to obtain elastomeric compound;
(3) extrude inner glue layer: the inner glue layer rubber product after mixing is added to screw extruder, extrude inner glue layer;
(4) braiding reinforced layer: by polyester thread braiding, knitting or be wrapped on inner glue layer, form reinforced layer;
(5) extrude outer glue-line: the outer glue-line rubber product after mixing is added to screw extruder, and glue-line outside reinforced layer is extruded formation outward, obtains rubber tube blank;
(6) sulfidization molding: the pipe making is put into sulfurizing pot and vulcanize, make sebific duct.
(7) smell removal liquid soaks: deodouring agent E500 and water are formed to smell removal liquid according to weight ratio 1:300～1:500 preparation, and sebific duct is placed in smell removal liquid and soaks, and temperature is 50～80 DEG C, and soak time is 2～10 hours;
(8) sulfidization molding: sebific duct is put into baking oven high temperature vulcanized, temperature is 80～150 DEG C, and cure time is 2～10 hours, makes finished hose.
Further, in described step (3), the temperature in each stage of extruder is respectively: 70～90 DEG C of head temperatures; 75～95 DEG C of extruding zone temperature; 80～100 DEG C of fluxing zone temperature; 85～100 DEG C of spiro rod section temperature.
Further, in described step (5), the temperature in each stage of extruder is: 70～90 DEG C of head temperatures; 75～95 DEG C of extruding zone temperature; 80～100 DEG C of fluxing zone temperature; 85～100 DEG C of spiro rod section temperature.
Further, in described step (6), adopt one step cure method, the temperature of sulfidization molding is 150～180 DEG C, and sulfide stress is 0.4～0.75Mpa, and cure time is 30～60min.
Ethylene propylene diene rubber environmental protection sebific duct strength character prepared by the present invention is good, at high temperature stable, and can reach environmental protection standard, nonirritant γ-ray emission.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Adopt paraffine base crude oil as plasticizing agent, because paraffine base crude oil volatile ingredient is low, pollute littlely, rubber loss of weight is little, and the ethylene propylene diene rubber compressive strain of filling paraffine base crude oil is less, and its ageing resistance is also more outstanding, is difficult for occurring to decompose and segregation.The environmental protection sebific duct of making has not only retained original performance, and highly stable under hot environment, on automobile without impact.
Its main component of deodouring agent E500 is ethylenediamine tetra-acetic acid (EDTA) and 2,3-dyhydrobutanedioic acid.In the composition of rubber compounding, due to raw material or other reasons, can contain unavoidably heavy metal substance, harm when these heavy metal substances will cause the sebific duct later stage to use.Rubber can produce some low-molecular materials (mainly comprising the compound such as alcohols, amido class) in sulfidation, the low-molecular material on surface is because high temperature decomposes volatilization, but inner can retaining and can constantly volatilize and produce penetrating odor in the later stage be used.The function of EDTA is to form chelate ring by the heavy metal ion having in compound and the rubber of multiple ligands, and chelate is conventionally stable than general complex, does not allow heavy metal evaporate into the effect that causes environmental pollution in air thereby reach.And EDTA can react with alcohols material the effect that stops its volatilization that reaches.2,3-dyhydrobutanedioic acid is acidic materials, and its function is to be mainly to react with amine low-molecular material, make it in the time of high temperature, not decompose ammonification and be dispersed in air, and 2,3-dyhydrobutanedioic acid can also assist EDTA to react with alcohols material.Therefore in formula, add the deodouring agent E500 can chelating heavy metal and react the effect that reaches environmental protection with low-molecular material.
Adopt high temperature vulcanized, the high temperature vulcanized time that can effectively shorten sulfuration, energy saving, and high temperature can effectively be removed the low-molecular material in sebific duct and penetrating odor material in sulfidation.
Embodiment one:
A preparation method for ethylene propylene diene rubber environmental protection sebific duct, adopts following process step:
(1) weighing: by the following inner glue layer raw material that takes, component ratio is counted by weight: ethylene propylene diene rubber, 100 parts; Deodouring agent E500,3 parts; Magnesium oxide, 2 parts; Stearic acid, 1 part; Dioctyl azelate DOZ, 1 part; N-octyl n-decyl adipate (NODA) NODA, 1 part; Fast carbon black N550,40 parts of extruding; Paraffine base crude oil, 10 parts; Vulcanzing agent P-14,2 parts; Altax, 0.5 part; Promoter TT, 1 part; Promoter TAIC, 1 part, promoter PX, 0.5 part; Promoter S95,1 part;
Take outer glue-line raw material, described outer glue-line raw material is identical with inner glue layer composition of raw materials;
(2) plasticate, mixing: adopt mill and banbury to inner glue layer raw material and outer glue-line raw material plasticate respectively, mixing, first adopt banbury to carry out mixing, first put into ethylene propylene diene rubber after mixing 60 seconds, add successively deodouring agent E500, magnesium oxide, stearic acid, dioctyl azelate DOZ, n-octyl n-decyl adipate (NODA) NODA, after mixing 150 seconds, add carbon black N550 and paraffine base crude oil, per minute subsequently depression bar is carried once, in the time that reaching more than 125 DEG C, temperature starts binder removal, in mill, add respectively vulcanzing agent P-14, altax, promoter TT, promoter TAIC, promoter PX, promoter S95 obtains elastomeric compound, this elastomeric compound is carried out to Performance Detection, confirm that its performance index reach requirement, obtain inner glue layer rubber product and outer glue-line rubber product, two kinds of rubber products are carried out to Performance Detection, confirm that their performance index reach requirement,
(3) extrude inner glue layer: the inner glue layer rubber product after mixing adds screw extruder, extrudes inner glue layer, and the temperature in each stage of extruder is: 70 DEG C of head temperatures; 75 DEG C of extruding zone temperature; 80 DEG C of fluxing zone temperature; 85 DEG C of spiro rod section temperature;
(4) braiding reinforced layer: polyester thread is woven on inner glue layer, forms reinforced layer;
(5) extrude outer glue-line: the outer glue-line rubber product after mixing adds screw extruder, glue-line outside reinforced layer is extruded formation outward, obtains pipe; The temperature in each stage of extruder is respectively: 70 DEG C of head temperatures; 75 DEG C of extruding zone temperature; 80 DEG C of fluxing zone temperature; 85 DEG C of spiro rod section temperature;
(6) sulfidization molding: the pipe making is put into sulfurizing pot, adopt one step cure method to vulcanize, the temperature of sulfidization molding is 150 DEG C, and sulfide stress is 0.4Mpa, and cure time is 60min, makes sebific duct.
(7) smell removal liquid soaks: deodouring agent E500 and water are formed to smell removal liquid according to weight ratio 1:300 preparation, sebific duct is put into smell removal liquid and soak 10 hours in 50 DEG C;
(8) sulfidization molding: sebific duct is put into baking oven high temperature vulcanized, sulfurize temperature is 80 DEG C, and the time is 10 hours, makes finished hose.
Embodiment two:
A preparation method for ethylene propylene diene rubber environmental protection sebific duct, adopts following process step:
(1) weighing: by the following inner glue layer raw material that takes, component ratio is counted by weight: ethylene propylene diene rubber, 100 parts; Deodouring agent E500,7 parts; Magnesium oxide, 4 parts; Stearic acid, 1 part; Dioctyl azelate DOZ, 3 parts; N-octyl n-decyl adipate (NODA) NODA, 2 parts; Fast carbon black N550,55 parts of extruding; Paraffine base crude oil, 25 parts; Vulcanzing agent P-14,3 parts; Altax, 1 part; Promoter TT, 1.5 parts; Promoter TAIC, 1.5 parts, promoter PX, 0.6 part; Promoter S95,2.5 parts;
Take outer glue-line raw material, described outer glue-line raw material is identical with inner glue layer composition of raw materials;
(2) plasticate, mixing: to adopt mill and banbury to plasticate respectively to inner glue layer raw material and outer glue-line raw material, mixing, first adopt banbury to carry out mixing, first put into ethylene propylene diene rubber mixing 60 seconds, then add successively deodouring agent E500, magnesium oxide, stearic acid, dioctyl azelate DOZ, n-octyl n-decyl adipate (NODA) NODA, after mixing 150 seconds, add carbon black N550 and paraffine base crude oil, per minute subsequently depression bar is carried once, in the time that reaching more than 125 DEG C, temperature starts binder removal, in mill, add respectively vulcanzing agent P-14, altax, promoter TT, promoter TAIC, promoter PX, promoter S95 obtains elastomeric compound, this elastomeric compound is carried out to Performance Detection, confirm that its performance index reach requirement, obtain inner glue layer rubber product and outer glue-line rubber product, two kinds of rubber products are carried out to Performance Detection, confirm that their performance index reach requirement,
(3) extrude inner glue layer: the inner glue layer rubber product after mixing adds screw extruder, extrudes inner glue layer, and the temperature in each stage of extruder is: 75 DEG C of head temperatures; 80 DEG C of extruding zone temperature; 85 DEG C of fluxing zone temperature; 90 DEG C of spiro rod section temperature;
(4) braiding reinforced layer: on inner glue layer, form reinforced layer by knitting polyester thread;
(5) extrude outer glue-line: the outer glue-line rubber product after mixing adds screw extruder, glue-line outside reinforced layer is extruded formation outward, forms pipe; The temperature in each stage of extruder is respectively: 75 DEG C of head temperatures; 80 DEG C of extruding zone temperature; 85 DEG C of fluxing zone temperature; 90 DEG C of spiro rod section temperature;
(6) sulfidization molding: the pipe making is put into sulfurizing pot, adopt one step cure method to vulcanize, the temperature of sulfidization molding is 160 DEG C, and sulfide stress is 0.57Mpa, and cure time is 50min, makes sebific duct.
(7) smell removal liquid soaks: deodouring agent E500 and water are formed to smell removal liquid according to weight ratio 1:400 preparation, sebific duct is put into smell removal liquid and at 60 DEG C, soak 7 hours;
(8) sulfidization molding: sebific duct is put into baking oven high temperature vulcanized, sulfurize temperature is 100 DEG C, and the time is 7 hours, makes finished hose.
Embodiment three:
A preparation method for ethylene propylene diene rubber environmental protection sebific duct, adopts following process step:
(1) weighing: by the following inner glue layer raw material that takes, component ratio is counted by weight: ethylene propylene diene rubber, 100 parts; Deodouring agent E500,15 parts; Magnesium oxide, 3 parts; Stearic acid, 1.5 parts; Dioctyl azelate DOZ, 1 part; N-octyl n-decyl adipate (NODA) NODA, 2 parts; Fast carbon black N550,75 parts of extruding; Paraffine base crude oil, 30 parts; Vulcanzing agent P-14,5 parts; Altax, 1.2 parts; Promoter TT, 1.5 parts; Promoter TAIC, 2 parts, promoter PX, 0.7 part; Promoter S95,2.5 parts;
Take outer glue-line raw material, described outer glue-line raw material is identical with inner glue layer composition of raw materials;
(2) plasticate, mixing: adopt mill and banbury to inner glue layer raw material and outer glue-line raw material plasticate respectively, mixing, first adopt banbury to carry out mixing, first put into ethylene propylene diene rubber mixing 60 seconds, add successively deodouring agent E500, magnesium oxide, stearic acid, dioctyl azelate DOZ, n-octyl n-decyl adipate (NODA) NODA, after mixing 150 seconds, add carbon black N550 and paraffine base crude oil, per minute subsequently depression bar is carried once, in the time that reaching more than 125 DEG C, temperature starts binder removal, in mill, add vulcanzing agent P-14, altax, promoter TT, promoter TAIC, promoter PX, promoter S95 obtains elastomeric compound, this elastomeric compound is carried out to Performance Detection, confirm that its performance index reach requirement, obtain inner glue layer rubber product and outer glue-line rubber product, two kinds of rubber products are carried out to Performance Detection, confirm that their performance index reach requirement,
(3) extrude inner glue layer: the inner glue layer rubber product after mixing is added to screw extruder, extrude inner glue layer, the temperature in each stage of extruder is respectively: 85 DEG C of head temperatures; 90 DEG C of extruding zone temperature; 90 DEG C of fluxing zone temperature; 95 DEG C of spiro rod section temperature;
(4) braiding reinforced layer: polyester thread is wrapped on inner glue layer, forms reinforced layer;
(5) extrude outer glue-line: the outer glue-line rubber product after mixing is added to screw extruder, and glue-line outside reinforced layer is extruded formation outward, forms pipe; The temperature in each stage of extruder is: 85 DEG C of head temperatures; 90 DEG C of extruding zone temperature; 90 DEG C of fluxing zone temperature; 95 DEG C of spiro rod section temperature;
(6) sulfidization molding: the pipe making is put into sulfurizing pot, adopt one step cure method to vulcanize, the temperature of sulfidization molding is 170 DEG C, and sulfide stress is 0.65Mpa, and cure time is 40min, makes sebific duct.
(7) smell removal liquid soaks: deodouring agent E500 and water are formed to smell removal liquid according to weight ratio 1:450 preparation, sebific duct is put into smell removal liquid and soak 5 hours in 70 DEG C;
(8) sulfidization molding: sebific duct is put into baking oven high temperature vulcanized, sulfurize temperature is 130 DEG C, and the time is 5 hours, makes finished hose;
Embodiment four:
A preparation method for ethylene propylene diene rubber environmental protection sebific duct, adopts following process step:
(1) weighing: by the following inner glue layer raw material that takes, component ratio is counted by weight: ethylene propylene diene rubber, 100 parts; E500,10 parts; Magnesium oxide, 6 parts; Stearic acid, 4 parts; Dioctyl azelate DOZ, 3 parts; N-octyl n-decyl adipate (NODA) NODA, 3 parts; Fast carbon black N550,90 parts of extruding; Paraffine base crude oil, 40 parts; Vulcanzing agent P-14,8 parts; Altax, 2 parts; Promoter TT, 3 parts; Promoter TAIC, 4 parts, promoter PX, 1 part; Promoter S95,4 parts;
Take outer glue-line raw material, described outer glue-line raw material is identical with inner glue layer composition of raw materials;
(2) plasticate, mixing: to adopt mill and banbury to plasticate respectively to inner glue layer raw material and outer glue-line raw material, mixing, first adopt banbury to carry out mixing, first put into ethylene propylene diene rubber mixing 60 seconds, then add successively deodouring agent E500, magnesium oxide, stearic acid, dioctyl azelate DOZ, n-octyl n-decyl adipate (NODA) NODA, within mixing 150 seconds, put into carbon black N550 and paraffine base crude oil, per minute subsequently depression bar is carried once, in the time that reaching more than 125 DEG C, temperature starts binder removal, in mill, add vulcanzing agent P-14, altax, promoter TT, promoter TAIC, promoter PX, promoter S95 obtains elastomeric compound, this elastomeric compound is carried out to Performance Detection, confirm that its performance index reach requirement, obtain inner glue layer rubber product and outer glue-line rubber product, two kinds of rubber products are carried out to Performance Detection, confirm that their performance index reach requirement,
(3) extrude inner glue layer: the inner glue layer rubber product after mixing is added to screw extruder, extrude inner glue layer, the temperature in each stage of extruder is respectively: head temperature 90; 95 DEG C of extruding zone temperature; 100 DEG C of fluxing zone temperature; 100 DEG C of spiro rod section temperature;
(4) braiding reinforced layer: polyester thread is woven on inner glue layer, forms reinforced layer;
(5) extrude outer glue-line: the outer glue-line rubber product after mixing is added to screw extruder, and glue-line outside reinforced layer is extruded formation outward, forms pipe; The temperature in each stage of extruder is: 90 DEG C of head temperatures; 95 DEG C of extruding zone temperature; 100 DEG C of fluxing zone temperature; 100 DEG C of spiro rod section temperature;
(6) sulfidization molding: the pipe making is put into sulfurizing pot, adopt one step cure method to vulcanize, the temperature of sulfidization molding is 180 DEG C, and sulfide stress is 0.75Mpa, and cure time is 30min, makes sebific duct.
(7) smell removal liquid soaks: deodouring agent E500 and water are formed to smell removal liquid according to weight ratio 1:500 preparation, sebific duct is put into smell removal liquid and soak 2 hours in 80 DEG C;
(8) sulfidization molding: sebific duct is put into baking oven high temperature vulcanized, sulfurize temperature is 150 DEG C, and the time is 2 hours, makes finished hose;
The rubber product that embodiment 1～embodiment 4 makes detect test according to examination criteria, result is as shown in table 1:
Table 1
Note: hardness detects according to GB/T531, tensile strength, elongation at break are according to GB/T528, and air oven aging test is according to GB/T3512, and resistance to antifreeze liquid is tested according to GB/T1690, odor test is according to VDA270, and fog test detects respectively according to DIN75201B.
Interpretation of result: can find out from the laboratory data of table 1, technical order of the present invention meets technical standard completely, the needs of product desired properties are reached, simultaneously fabulous solution some composition in sebific duct therefrom separate out, thereby bring the problem of adverse effect to environment, the environmental protection sebific duct of being made up of this formula has not only reached physical property requirement, and the relevant environmental requirement such as its odor test, fog test has also reached, highly stable under hot environment, can say in environmental protection sebific duct field at home and abroad and maintain the leading position completely.
Claims (6)
1. ethylene propylene diene rubber environmental protection sebific duct, comprises inner glue layer, reinforced layer and outer glue-line, it is characterized in that: described reinforced layer is closely wrapped in outside inner glue layer, and outer glue-line is coated on outside reinforced layer; Described reinforced layer be adopt polyester thread with braiding, the knitting or wrapped that is wound around on interior sebific duct and form; Described inner glue layer and outer glue-line are made up of ethylene propylene diene rubber.
2. ethylene propylene diene rubber environmental protection sebific duct as claimed in claim 1, is characterized in that: the pipe thickness of described ethylene propylene diene rubber environmental protection sebific duct is 3 ~ 6 mm.
3. the preparation method of ethylene propylene diene rubber environmental protection sebific duct, is characterized in that: adopt following process step:
(1) weighing: take raw material by following portions by weight proportioning, wherein inner glue layer raw material comprises: ethylene propylene diene rubber, 100 parts; Deodouring agent E500,3 ~ 20 parts; Magnesium oxide, 2 ~ 6 parts; Stearic acid, 1 ~ 4 part; Dioctyl azelate DOZ, 1-3 part; N-octyl n-decyl adipate (NODA) NODA, 1-3 part; Fast carbon black N550,40 ~ 90 parts of extruding; Paraffine base crude oil, 10 ~ 40 parts; Vulcanzing agent P-14,2 ~ 8 parts; Altax, 0.5 ~ 2 part; Promoter TT, 1 ~ 3 part; Promoter TAIC, 1 ~ 4 part, promoter PX, 0.5 ~ 1 part; Promoter S95,1 ~ 4 part;
Take outer glue-line raw material, described outer glue-line raw material is identical with inner glue layer composition of raw materials;
(2) plasticate, mixing: adopt mill and banbury to inner glue layer raw material and outer glue-line raw material plasticate respectively, mixing; First adopt banbury to carry out mixing, first put into ethylene propylene diene rubber mixing 60 seconds, then add successively deodouring agent E500, magnesium oxide, stearic acid, dioctyl azelate DOZ, n-octyl n-decyl adipate (NODA) NODA, mixing 150 seconds time, add carbon black N550 and paraffine base crude oil, per minute depression bar is carried once, in the time that temperature reaches more than 125 DEG C, start binder removal, in mill, add vulcanzing agent P-14, altax, promoter TT, promoter TAIC, promoter PX, promoter S95 to obtain elastomeric compound;
(3) extrude inner glue layer: the inner glue layer rubber product after mixing is added to screw extruder, extrude inner glue layer;
(4) braiding reinforced layer: by polyester thread braiding, knitting or be wrapped on inner glue layer, form reinforced layer;
(5) extrude outer glue-line: the outer glue-line rubber product after mixing is added to screw extruder, and glue-line outside reinforced layer is extruded formation outward, obtains rubber tube blank;
(6) sulfidization molding: the pipe making is put into sulfurizing pot and vulcanize, make sebific duct;
(7) smell removal liquid soaks: deodouring agent E500 and water are formed to smell removal liquid according to weight ratio 1:300 ~ 1:500 preparation, and sebific duct is placed in smell removal liquid and soaks, and temperature is 50 ~ 80 DEG C, and soak time is 2 ~ 10 hours;
(8) sulfidization molding: sebific duct is put into baking oven sulfidization molding, and the temperature of baking oven is 80～150 DEG C, and the time is 2 ~ 10 hours, makes finished hose.
4. the preparation method of ethylene propylene diene rubber environmental protection sebific duct as claimed in claim 3, is characterized in that: in described step (3), the temperature in each stage of extruder is respectively: 70 ~ 90 DEG C of head temperatures; 75 ~ 95 DEG C of extruding zone temperature; 80 ~ 100 DEG C of fluxing zone temperature; 85 ~ 100 DEG C of spiro rod section temperature.
5. the preparation method of ethylene propylene diene rubber environmental protection sebific duct as claimed in claim 3, is characterized in that: in described step (5), the temperature in each stage of extruder is: 70 ~ 90 DEG C of head temperatures; 75 ~ 95 DEG C of extruding zone temperature; 80 ~ 100 DEG C of fluxing zone temperature; 85 ~ 100 DEG C of spiro rod section temperature.
6. the preparation method of ethylene propylene diene rubber environmental protection sebific duct as claimed in claim 3, it is characterized in that: in described step (6), adopt one step cure method, the temperature of sulfidization molding is 150 ~ 180 DEG C, sulfide stress is 0.4 ~ 0.75 Mpa, and cure time is 30 ~ 60 min.
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| CN108612924A (en) * | 2016-12-09 | 2018-10-02 | 中国石油化工股份有限公司 | A kind of fuel charger anti-static rubber tube and preparation method |
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