CN110240760A - A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions and preparation method thereof - Google Patents
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions and preparation method thereof Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
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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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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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
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions of the present invention, which is characterized in that it according to parts by weight include: EPDM5890F, 100 parts；Kaolin, 2-6 parts；Zinc oxide, 3-8 parts；1-3 parts of stearic acid；Paraffin, 2-5 parts；Antioxidant MB, 1-3 parts；Carbon black SP6400A, 50-70 part；Fire retardant, 130-190 parts；Paraffin oil, 10-30 parts；Sulphur, 1-2 parts；Calcium oxide, 10-15 parts；1.6-3 parts of promotor；The promotor includes 0.5-0.8 parts of BZ promotor, 0.7-1.2 parts of TRA promotor, 0.2-0.5 parts of DM promotors and 0.2-0.5 parts of promotor TT；Aluminium hydroxide, 20-40 parts of zinc borates, 10-20 parts of antimony oxide and 20-30 parts of the decabromodiphenylethane that the fire retardant is 80-100 parts, another object of the present invention is to provide a kind of preparation method of flame-resistant insulation ethylene propylene diene rubber hose compositions, under the premise of meeting vulcanized rubber electrical insulating property and insulation resistance, while meeting the requirement of mechanical strength of rubber.
Description
Technical field
The invention belongs to field of rubber technology, more particularly to a kind of flame-resistant insulation ethylene propylene diene rubber hose compositions and
Preparation method.
Background technique
Rubber hose is one of interior wiring rubber product of EMU, which is located in car body and outside car body.Hose
Inside wear miscellaneous electric wire, hose mainly shields to internal cable, and protection can be divided into mechanical external force effect
Under protection, in addition will also to external heat source protect inside cable, it is well known that ethylene propylene diene rubber (EPDM) be ethylene,
The copolymer of propylene and a small amount of non-conjugated diene hydrocarbon, because of its excellent electrical insulating property, low-density, high fillibility, lower temperature resistance, resistance to
The performances such as hot, ozone resistance and weatherability have been widely used, in world's synthetic rubber total quantity consumed, about
7% is accounted for, occupies third, but poor flame retardant properties insulation performance is poor.
It is understood that ethylene propylene diene rubber is non-from reinforced rubber, so, to make ethylene propylene diene rubber reach certain
Mechanical strength, it is necessary to carbon black be added and carry out reinforcement, however, carbon black is a kind of conductive material, with carbon black in ethylene propylene diene rubber
The increase of ratio dosage, mechanical performance increases but decreasing insulating.
The flame retardant property of rubber hose composition generallys use halogen flame at present, its advantage is that dosage is few, fire-retardant effect
Rate height and wide adaptability, but its critical defect is that a large amount of cigarette and toxic and acrid gas are generated when burning, and harm is very
Greatly.
Therefore the prior art is further improved.
Summary of the invention
The present invention provides a kind of flame-resistant insulation ethylene propylene diene rubber hose compositions, it is desirable to provide a kind of with excellent
The EPT rubber composition of flame retardant property and insulation performance, another object of the present invention are a kind of flame-resistant insulation ternary second
The preparation method of third rubber hose composition solves the rubber prepared in the case where no pressure vulcanization using hot-air cure technique
Glue hose section is closely knit, further improves the production efficiency of product, reduces manufacturing cost.
To solve the above problems, the technical scheme adopted by the invention is that:
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions include: according to parts by weight
EPDM5890F, 100 parts；Kaolin, 2-6 parts；Zinc oxide, 3-8 parts；1-3 parts of paraffin of stearic acid, 2-5 parts；It is anti-old
Agent MB, 1-3 part；Carbon black SP6400A, 50-70 part；Fire retardant, 130-190 parts；Paraffin oil, 10-30 parts；Sulphur, 1-2 parts；Oxygen
Change calcium, 10-15 parts；1.6-3 parts of promotor；
The promotor includes 0.5-0.8 parts of BZ promotor, 0.7-1.2 parts of TRA promotor, 0.2-0.5 parts of DM rush
Into agent and 0.2-0.5 parts of promotor TT；
Aluminium hydroxide, 20-40 part zinc borates, 10-20 part of antimony oxide and 20- of the fire retardant for 80-100 parts
30 parts of decabromodiphenylethane.
The present invention also provides a kind of preparation methods of flame-resistant insulation rubber hose composition, include the following steps:
(1) it weighs: raw material is weighed according to the proportion in formula；；
(2) pre-treatment of raw material: the carbon black SP6400A that step (1) weighs is stirred evenly with aluminium hydroxide and paraffin oil,
Ultrasonic activation 5-7 hours spare；
(3) primary pressurization is kneaded: by ethylene propylene diene rubber EPDM5890F, kaolin, zinc oxide, antioxidant MB, paraffin,
Mixer mixing, ram piston pressure 05-0.6MPa is added in stearic acid, and the time is 2~3 minutes；
(4) secondary pressurized is kneaded: the carbon black SP6400A that is added that step (1) treated in the sizing material after step (3) are kneaded
With aluminium hydroxide, ram piston pressure 0.5-0.6MPa；
(5) pressurization is kneaded three times, and zinc borate, antimony oxide, decabrominated dipheny is added in the sizing material after step (4) are kneaded
It ethane and is kneaded, ram piston pressure 0.5-0.6MPa, terminating temperature is 140-150 DEG C；
(6) slice: the sizing material after the mixing of step (5) is discharged on open mill, on a mill by the thin logical 3-4 of sizing material
Time, so that sizing material is cooled to 70-80 DEG C, is then uniformly added into sulphur, promotor and calcium oxide, the 3-4 of falling glue is secondary, finally by open mill
Roll spacing is adjusted to 1mm, and it is cooling to carry out Bao Tonghou bottom sheet；
(7) item under heat refining: open mill roller temperature being carried out to be preheating to 50-60 DEG C, and then by step (6), treated, and sizing material is put
Onto open mill, the pre- hot gluse size of single is 50-60kg, after sizing material preheating uniformly, surface it is smooth after lower item, lower thickness 7-
10mm, width 50-60mm；
(8) hot-air cure: adhesive tape prepared by step (7) is placed in extruder and is squeezed out, extruder temperature is set as 55-75
DEG C, head temperature is set as 80-90 DEG C.
Further, when step (8) vulcanization squeezes out, the air pressure of 0.1MPa is filled to screw rod tube core, vulcanization is empty using heat
Gas vulcanization.
The hot-air cure is three sections of baking oven hot-air cures, and one section of hot-air cure temperature is 190~200 DEG C, two
Section hot-air cure temperature is 180~190 DEG C, three sections 170~180 DEG C of hot-air cure temperature.Beneficial effects of the present invention:
1, the present invention is by selecting the rubber electrical insulation capability of suitable proportion refining under the 1000V voltage that pressurizes, insulation
Resistance >=1000M Ω；Oxygen index (OI) >=30% meets the requirement of performance, vulcanized rubber tensile strength >=12Mpa, and elongation at break >=
500%；Under the premise of meeting vulcanized rubber electrical insulating property and insulation resistance, while meeting the requirement of mechanical strength of rubber.
2, the present invention activates carbon black before mixing, selects together with fire retardant aluminium hydroxide, paraffin oil when activation
Ultrasonic treatment, when ultrasonic, paraffin oil can be dissolved in carbon black and aluminium hydroxide, stir evenly, and stone can be greatly increased after ultrasonic treatment
Wax oil and inorganic fire retardants aluminium hydroxide phase solubility, therefore both haved the function that surface active, while will increase carbon black and hydrogen
The reinforcing effect of aluminium oxide, meanwhile, the active group for also increasing surface is ultrasonically treated to aluminium hydroxide, when later period mixing
Increase its dispersibility, carbon black and aluminium hydroxide are ultrasonically treated before being kneaded, solves vulcanization dense rubber section and gas occur
The problem of hole, product section is closely knit after vulcanization, pore-free.
3, traditionally charcoal melanism, the generally aqueous solution of strong acid and strong base can destroy the internal structure of carbon black to carbon black processing,
And due to being that aqueous solution processing causes carbon black to be easy agglomeration, generally require after addition dispersing agent or processing to handling again,
The present invention is that ultrasound is blended with paraffin oil for carbon black, aluminium hydroxide, avoids agglomeration problems, meanwhile, in paraffin oil and hydroxide
Aluminium together, belongs to ultrasound under micro- alkali environment to the surface active of carbon black, therefore will not influence the insulation performance of carbon black, paraffin oil is
The indispensable plasticizer in this formula selects fire retardant aluminium hydroxide to be ultrasonically treated together without additionally adding inorganic agent,
Other influences will not be generated in later period refining glue.
4, it is added to kaolin in inventive formulation, when being once kneaded, ethylene propylene diene rubber EPDM5890F and kaolin are total
With being kneaded, the mechanical strength of ethylene propylene diene rubber ontology can be increased, meanwhile, the plasticity of rubber is increased, secondary pressurized is mixed
With when pressurization is kneaded three times, kaolin can generate a small amount of cation in multiple be kneaded in friction process for refining, enhance and prepare glue
The insulation performance and flame retardant property of material.
5, the present invention fills 0.1Mpa air pressure to screw rod tube core in extrusion process, and pressurising can guarantee in extruded rubber hose
When, a supporting role is played to hose, and vulcanize using three sections of hot-air vulcanizations, product wall thickness is equal after such mode forms
It is even, be unlikely to deform, and fundamentally solve the problems, such as rubber non-pressure cure technique rubber solve be easy section stomata.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
Embodiment one
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions, according to weight fraction meter, including following component:
EPDM5890F, 100 parts；Kaolin, 2 parts；Zinc oxide, 3 parts；1.2 parts of stearic acid；Paraffin, 2 parts；Antioxidant MB, 1
Part；Carbon black SP6400A, 50 parts；100 parts of aluminium hydroxide；40 parts of zinc borate；10 parts of antimony oxide；10 parts of decabromodiphenylethane；
Paraffin oil, 10 parts；Sulphur, 1 part；Accelerant B Z, 0.8 part；Promotor TRA, 1.2 parts；Altax, 0.5 part；Promotor TT,
0.5 part；Calcium oxide, 10 parts.
A kind of preparation method of flame-resistant insulation rubber hose composition, includes the following steps:
(1) it weighs: raw material is weighed according to the proportion in formula；；
(2) pre-treatment of raw material: the carbon black SP6400A that step (1) weighs is stirred evenly with aluminium hydroxide and paraffin oil,
Ultrasonic activation 5 hours, pull carbon black SP6400A and aluminium hydroxide out, it is drained and standby；
(3) primary pressurization is kneaded: by ethylene propylene diene rubber EPDM5890F, kaolin, zinc oxide, antioxidant MB, paraffin,
Mixer mixing, ram piston pressure 0.5MPa is added in stearic acid, and the time is 3 minutes；
(4) secondary pressurized is kneaded: the carbon black SP6400A that is added that step (1) treated in the sizing material after step (3) are kneaded
With aluminium hydroxide, ram piston pressure 0.5MPa；
(5) pressurization is kneaded three times, and zinc borate, antimony oxide, decabrominated dipheny is added in the sizing material after step (4) are kneaded
It ethane and is kneaded, ram piston pressure 0.5MPa, terminating temperature is 140 DEG C；
(6) slice: the sizing material of step (3) is discharged on open mill, on a mill that sizing material is logical 3-4 times thin, makes sizing material
80 DEG C are cooled to, sulphur, promotor and calcium oxide are then uniformly added into, glue 3 times, open mill roll spacing is finally adjusted to 1mm,
It is cooling to carry out Bao Tonghou bottom sheet；
(7) item under heat refining: open mill roller temperature being carried out to be preheating to 60 DEG C, then the sizing material of preheating is put on open mill,
The pre- hot gluse size of single is 55kg, after sizing material preheating uniformly, surface it is smooth after lower item, lower thickness 7-10mm, the present embodiment setting
For 8 ㎜, width 50-60mm, the present embodiment is set as 8 ㎜.
(8) hot-air cure: adhesive tape prepared by step (7) being placed in extruder and is squeezed out, and extruder temperature is set as 75 DEG C,
Head temperature is set as 90 DEG C, when vulcanization squeezes out, and the air pressure of 0.1MPa is filled to screw rod tube core, and vulcanization uses hot-air cure, institute
Stating hot-air cure is three sections of baking oven hot-air cures, and one section of hot-air cure temperature is 190~200 DEG C, two sections of hot-air sulphur
Changing temperature is 180~190 DEG C, three sections 170~180 DEG C of hot-air cure temperature.
Comparative example one
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions, consistent with embodiment one according to weight fraction meter, difference
It is only that and does not add kaolin.
A kind of preparation method of flame-resistant insulation ethylene propylene diene rubber hose compositions is the same as embodiment one
Comparative example two
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions, it is consistent with embodiment one according to weight fraction meter.
A kind of preparation method of flame-resistant insulation ethylene propylene diene rubber hose compositions is only that as in the first embodiment, distinguishing, and is lacked
Few step 2.
Comparative example three
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions, it is consistent with embodiment one according to weight fraction meter.
A kind of preparation method of flame-resistant insulation ethylene propylene diene rubber hose compositions is only that as in the first embodiment, distinguishing, and is walked
Not to screw rod tube core pressurising in rapid 8.
Embodiment two
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions, according to weight fraction meter, including following component:
PDM5890F, 100 parts；Kaolin, 4 parts；Zinc oxide, 5 parts；2 parts of stearic acid；Paraffin, 3 parts；Antioxidant MB, 1.5
Part；Carbon black SP6400A, 60 parts；90 parts of aluminium hydroxide；30 parts of zinc borate；15 parts of antimony oxide；25 parts of decabromodiphenylethane；
Paraffin oil, 15 parts；Sulphur, 1.2 parts；Accelerant B Z, 0.7 part；Promotor TRA, 1 part；Altax, 0.4 part；Promotor TT,
0.4 part；Calcium oxide, 12 parts.
A kind of preparation method of flame-resistant insulation ethylene propylene diene rubber hose compositions is the same as embodiment one.
Embodiment three
A kind of flame-resistant insulation ethylene propylene diene rubber hose compositions, according to weight fraction meter, including following component:
EPDM5890F, 100 parts；Kaolin, 6 parts；Zinc oxide, 6 parts；2.2 parts of stearic acid；Paraffin, 4 parts；Antioxidant MB, 2
Part；Carbon black SP6400A, 70 parts；80 parts of aluminium hydroxide；30 parts of zinc borate；20 parts of antimony oxide；20 parts of decabromodiphenylethane；
Paraffin oil, 30 parts；Sulphur, 1.5 parts；Accelerant B Z, 0.5 part；Promotor TRA, 0.8 part；Altax, 0.2 part；Promotor
TT, 0.2 part；Calcium oxide, 15 parts.
A kind of preparation method of flame-resistant insulation ethylene propylene diene rubber hose compositions is the same as embodiment one.
1-3 of the embodiment of the present invention and comparative example 1-3 rubber material carry out performance detection, wherein rubber tensile is strong and pulls apart
Elongation is tested according to GB/T528-2009 prescriptive procedure；Electrical insulation capability is according to method as defined in TB/T2843-2015
It is tested；Rubber combustion performance measurement oxygen index method according to
Method as defined in GB/T 10707-2008 is tested, and the results are shown in Table 1 for detection.
Table 1:
Through embodiment 1-3 compared with comparative example 1-2, it can be seen that kaolinic addition, carbon black and aluminium hydroxide are total
It is apparently higher than comparative example 1-2 with mechanical performances such as ultrasonication post-tensioning intensity, elongations at break, meanwhile, the rubber of preparation
With excellent flame retardant property and insulation performance.
Through embodiment 1-3 compared with comparative example 3, it can be seen that when extrusion, using hot-air cure and in screw rod tube core
Pressurising can be obviously improved the appearance of rubber, meet the technical indicator rubber electrical insulation capability of customer requirement in pressurization 1000V electricity
Pressure, insulation resistance >=1000M Ω；Oxygen index (OI) >=30%, vulcanized rubber tensile strength >=12Mpa, elongation at break >=
500%.
The above is the preferred embodiment of the present invention, for those skilled in the art,
Without departing from the principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also regarded as this hair
Bright protection scope.
Claims (4)
1. a kind of flame-resistant insulation ethylene propylene diene rubber hose compositions, which is characterized in that include: according to parts by weight
EPDM5890F, 100 parts；Kaolin, 2-6 parts；Zinc oxide, 3-8 parts；1-3 parts of stearic acid；Paraffin, 2-5 parts；Antioxidant MB, 1-3
Part；Carbon black SP6400A, 50-70 part；Fire retardant, 130-190 parts；Paraffin oil, 10-30 parts；Sulphur, 1-2 parts；Calcium oxide, 10-
15 parts；1.6-3 parts of promotor；
The promotor includes 0.5-0.8 parts of BZ promotor, 0.7-1.2 parts of TRA promotor, 0.2-0.5 parts of DM promotors
And 0.2-0.5 parts of promotor TT；
The fire retardant is 80-100 parts of aluminium hydroxide, 20-40 parts of zinc borates, 10-20 parts of antimony oxide and 20-30 parts
Decabromodiphenylethane.
2. a kind of preparation method of rubber hose composition described in claim 1, which comprises the steps of:
(1) it weighs: raw material is weighed according to the proportion in formula；
(2) pre-treatment of raw material: the carbon black SP6400A that step (1) weighs is stirred evenly with aluminium hydroxide and paraffin oil, ultrasound
Activation 5-7 hours spare；
(3) primary pressurization is kneaded: by ethylene propylene diene rubber EPDM5890F, kaolin, zinc oxide, antioxidant MB, paraffin, tristearin
Mixer mixing, ram piston pressure 05-0.6MPa is added in acid, and the time is 2~3 minutes；
(4) secondary pressurized is kneaded: be added that step (1) treated in the sizing material after step (3) are kneaded carbon black SP6400A and hydrogen
Aluminium oxide, ram piston pressure 0.5-0.6MPa；
(5) pressurization is kneaded three times, and zinc borate, antimony oxide, decabromodiphenylethane is added in the sizing material after step (4) are kneaded
Be kneaded, ram piston pressure 0.5-0.6MPa, terminate temperature be 140-150 DEG C；
(6) slice: the sizing material of step (3) is discharged on open mill, on a mill that sizing material is logical 3-4 times thin, keeps sizing material cooling
To 70-80 DEG C, it is then uniformly added into sulphur, promotor and calcium oxide, the 3-4 of falling glue times, is finally adjusted to open mill roll spacing
It is cooling to carry out Bao Tonghou bottom sheet by 1mm；
(7) item under heat refining: open mill roller temperature being carried out to be preheating to 50-60 DEG C, then the sizing material of preheating is put on open mill, single
Secondary pre- hot gluse size is 50-60kg, after sizing material preheating uniformly, surface it is smooth after lower item, lower 7~10mm of thickness, width 50~
60mm；
(8) hot-air cure: adhesive tape prepared by step (7) being placed in extruder and is squeezed out, and extruder temperature is set as 55-75 DEG C,
Head temperature is set as 80-90 DEG C.
3. the preparation method of rubber hose composition as claimed in claim 2, which is characterized in that step (8) vulcanization is squeezed
When out, the air pressure of 0.1MPa is filled to screw rod tube core, vulcanization uses hot-air cure.
4. the preparation method of rubber hose composition as claimed in claim 3, which is characterized in that the hot-air cure is three
Section baking oven hot-air cure, one section of hot-air cure temperature is 190~200 DEG C, two sections of hot-air cure temperature are 180~190
DEG C, three sections 170~180 DEG C of hot-air cure temperature.
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| CN201910598710.1A CN110240760B (en) | 2019-07-04 | 2019-07-04 | Insulating flame-retardant ethylene propylene diene monomer rubber hose composition and preparation method thereof |
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| CN201910598710.1A CN110240760B (en) | 2019-07-04 | 2019-07-04 | Insulating flame-retardant ethylene propylene diene monomer rubber hose composition and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226001A (en) * | 2020-09-27 | 2021-01-15 | 余姚市振州工贸有限公司 | Protective tube for bullet train braking device and preparation method thereof |
| CN112375276A (en) * | 2020-10-28 | 2021-02-19 | 诺博橡胶制品有限公司 | High-resistance matte sealing strip and preparation method thereof |
| CN112662081A (en) * | 2020-12-23 | 2021-04-16 | 汕头大学 | Preparation method of waterproof sealing gasket material for submarine shield tunnel |
| CN112708213A (en) * | 2020-12-23 | 2021-04-27 | 汕头大学 | Waterproof sealing gasket material for submarine shield tunnel |
| CN114196122A (en) * | 2021-11-25 | 2022-03-18 | 爱普高分子技术宜兴有限公司 | High-flame-retardant insulating material for cable sheath |
| CN115975297A (en) * | 2022-12-02 | 2023-04-18 | 池州起帆电缆有限公司 | Preparation method of flame-retardant ethylene propylene diene monomer |
| CN116102823A (en) * | 2022-09-09 | 2023-05-12 | 株洲时代新材料科技股份有限公司 | Flame-retardant EPDM (ethylene-propylene-diene monomer) rubber material with shape self-recovery function and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112226001A (en) * | 2020-09-27 | 2021-01-15 | 余姚市振州工贸有限公司 | Protective tube for bullet train braking device and preparation method thereof |
| CN112375276A (en) * | 2020-10-28 | 2021-02-19 | 诺博橡胶制品有限公司 | High-resistance matte sealing strip and preparation method thereof |
| CN112662081A (en) * | 2020-12-23 | 2021-04-16 | 汕头大学 | Preparation method of waterproof sealing gasket material for submarine shield tunnel |
| CN112708213A (en) * | 2020-12-23 | 2021-04-27 | 汕头大学 | Waterproof sealing gasket material for submarine shield tunnel |
| CN112662081B (en) * | 2020-12-23 | 2023-12-12 | 汕头大学 | Preparation method of waterproof sealing gasket material for submarine shield tunnel |
| CN114196122A (en) * | 2021-11-25 | 2022-03-18 | 爱普高分子技术宜兴有限公司 | High-flame-retardant insulating material for cable sheath |
| CN116102823A (en) * | 2022-09-09 | 2023-05-12 | 株洲时代新材料科技股份有限公司 | Flame-retardant EPDM (ethylene-propylene-diene monomer) rubber material with shape self-recovery function and preparation method thereof |
| CN116102823B (en) * | 2022-09-09 | 2024-03-29 | 株洲时代新材料科技股份有限公司 | Flame-retardant EPDM (ethylene-propylene-diene monomer) rubber material with shape self-recovery function and preparation method thereof |
| CN115975297A (en) * | 2022-12-02 | 2023-04-18 | 池州起帆电缆有限公司 | Preparation method of flame-retardant ethylene propylene diene monomer |
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