CN106832461A - A kind of heat-conducting type rubber and preparation method thereof - Google Patents
A kind of heat-conducting type rubber and preparation method thereof Download PDFInfo
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- CN106832461A CN106832461A CN201510886407.3A CN201510886407A CN106832461A CN 106832461 A CN106832461 A CN 106832461A CN 201510886407 A CN201510886407 A CN 201510886407A CN 106832461 A CN106832461 A CN 106832461A
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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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
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/011—Nanostructured additives
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Abstract
The present invention provides a kind of heat-conducting type rubber and preparation method thereof, and the mass fraction of the heat-conducting type rubber is：200 parts, zinc oxide 4-8 parts, stearic acid 6-10 parts of rubber, carbon black 100-160 parts, nano silicon 5-20 parts, nano aluminum nitride 20-50 parts, plasticizer 40-60 parts, age resistor 6-10 parts, vulcanizing agent 4-8 parts, accelerator 3-6 parts, antiscorching agent 2-4 parts, the heat-conducting type rubber that the present invention is provided, heat quickly cannot conduct the technical problem that elastomer stator be caused easily aging to solve existing elastomer stator.
Description
Technical field
The present invention relates to a kind of field of rubber materials, more particularly to a kind of heat-conducting type rubber and its preparation side
Method.
Background technology
Subsurface progressive cavity is a kind of positive displacement pump, and it is mainly made up of rotor and stator, wherein, rotor is specific
Be firm screw rod, by steel alloy it is quenched after, formed through turnning and milling, polishing, chromium plating, with good wear resistence,
Stator is specially rubber bushing, is to cast in the embedded double helix formed in steel body overcoat by synthetic rubber
Body, stator is fixed in steel pipe, and upper end is connected with oil pipe, and rotor is located in stator and rotates, and realizes taking out
Inhale function.
However, steel screw rod (rotor) can produce substantial amounts of heat when being rotated in rubber bushing (stator), and
Existing stator is prepared from by rubber, the conduction that heat can not be quickly, can cause rubber internal temperature liter
Height, accelerates the aging and damaged condition of stator, so that the short service life of screw pump.
The content of the invention
The present invention provides a kind of heat-conducting type rubber, and the heat-conducting type rubber has good heat conductivility, greatly
Improve heat problem of transmission of the heat-conducting type rubber as stator, so as to solve existing rubber determine
Heat quickly cannot conduct son the technical problem for causing elastomer stator easily aging.
The present invention also provides a kind of preparation method of heat-conducting type rubber, and operating process is simply easily controllable.
The present invention provides a kind of heat-conducting type rubber, and the mass fraction of the heat-conducting type rubber is：Rubber 200
Part, zinc oxide 4-8 parts, stearic acid 6-10 parts, carbon black 100-160 parts, nano silicon 5-20 parts,
Nano aluminum nitride 20-50 parts, plasticizer 40-60 parts, age resistor 6-10 parts, vulcanizing agent 4-8 parts, promote
Enter agent 3-6 parts, antiscorching agent 2-4 parts.
The present invention provide heat-conducting type rubber in, wherein, comprising nano aluminum nitride be heat filling, lead to
Addition nano aluminum nitride is crossed so that heat-conducting type rubber has good heat conductivility, so use heat-conducting type rubber
When glue is prepared from the stator of screw pump, the heat conductivility of stator preferably, rapidly can rotate rotor
The heat transfer of generation is gone out, and the heat problem of transmission of stator is significantly improved, so as to reduce stator
Aging speed, so extends the service life of screw pump, and in the present invention, the number of nano aluminum nitride is
20-50 parts, for example, can be 30 parts, or 40 parts or 50 parts.
In the heat-conducting type rubber that the present invention is provided, also comprising nano silicon and carbon black, by nanometer two
Silica and carbon black composition reinforcing and filling system so that heat-conducting type rubber with good mechanical performance,
In the present invention, the number of nano silicon is 5-20 parts, for example, can be 8 parts, 10 parts, 15 parts
Or 20 parts.In the present invention, the mass fraction of carbon black is 100-160 part, for example, can be 110 parts, 120
Part, 130 parts or 150 parts.
In the heat-conducting type rubber that the present invention is provided, the mass fraction of zinc oxide is 4-8 parts, for example, can be 5
Part, 6 parts, 7 parts or 8 parts, stearic mass fraction be 6-10 part, for example can be 7 parts, 8
Part, 9 parts or 10 parts, the mass fraction of plasticizer is 40-60 part, for example, can be 50 parts, 55 parts
Or 60 parts, age resistor can be aniline type antioxidant, and the mass fraction of age resistor is 6-10 parts, for example
Can be 7 parts, 8 parts, 9 parts or 10 parts, the mass fraction of vulcanizing agent is 4-8 parts, for example, can be 5
Part, 6 parts, 7 parts or 8 parts, the mass fraction of accelerator is 3-6 part, for example, can be 4 parts, 5 parts
Or 6 parts, the mass fraction of antiscorching agent is 2-4 parts, for example, can be 3 parts or 4 parts.
In embodiment of the present invention, the rubber is to be total to polyvinylchloride by nitrile rubber NBR
The coprecipitated glue of mixed obtained NBR/PVC, wherein, the acrylonitrile content in the coprecipitated glue of NBR/PVC is
26%-30%, Mooney viscosity is 45 ± 5.
In the present invention, it is blended with polyvinylchloride from nitrile rubber NBR by rubber obtained
The coprecipitated glue of NBR/PVC, so, on the basis of the preferable oil resistivitys of NBR and cross linkable is maintained,
Considerably improve ozone resistance, weatherability and the ageing resistance of NBR, the oil resistant of such heat-conducting type rubber
Property and ageing resistance are significantly improved.
In embodiment of the present invention, the carbon black is carbon black N330, carbon black N550 or carbon black N774
In any one, wherein, carbon black is important reinforcing filler in reinforcing and filling system, to rubber glue
The physical and mechanical properties and processing technology of material all have a major impact, carbon black N330, the charcoal chosen in the present invention
Black N550 or carbon black N774 are the normal carbon black of curingprocess rate.
In embodiment of the present invention, the particle diameter of the nano silicon is 45 ± 5nm；The nanometer
The particle diameter of aluminium nitride is 30 ± 5nm
In embodiment of the present invention, the plasticizer is molecular weight for the polyesters of 1000-8000 are plasticized
Agent, wherein, the molecular weight of polyesters plasticizer can be 2000,4000,6000 or 7000.
In embodiment of the present invention, the age resistor can select aniline type antioxidant, be specifically as follows
4.4 a pair ofs (2.2- dimethyl benzyls) diphenylamines.
In embodiment of the present invention, the vulcanizing agent is sulphur.
In embodiment of the present invention, the accelerator be 2- benzothiazolyl mercaptans, diphenyl disulfide simultaneously
The mixture of one or more in thiazole and N cyclohexyl 2 benzothiazole sulfenamide, such as accelerator can
Think the mixing that 2- benzothiazolyl mercaptans and dibenzothiazyl disulfide are mixed to get according to arbitrary proportion
Thing, accelerator can also be 2- benzothiazolyl mercaptans, dibenzothiazyl disulfide and N- cyclohexyl -2-
The mixture that benzothiazole sulfenamide is mixed to get according to arbitrary proportion, or accelerator can be only
It is 2- benzothiazolyl mercaptans, or dibenzothiazyl disulfide, or N- cyclohexyl -2-[4-morpholinodithio
Sulfonamide.
In embodiment of the present invention, the antiscorching agent is N- cyclohexyl thio O-phthalic phthalimides, N-
Nitroso -2,2,4- trimethyl -1, the mixture of one or more in 2- EEDQ polymer, for example,
Antiscorching agent can be N- cyclohexyl thio O-phthalic phthalimides, or can be N- nitroso -2,2,
4- trimethyl -1,2- EEDQ polymer, or be N- cyclohexyl thio O-phthalic phthalimides and N-
Nitroso -2,2,4- trimethyl -1, the mixing that 2- EEDQs polymer is mixed to get according to arbitrary proportion
Thing.
The present invention also provides the preparation method of above-mentioned heat-conducting type rubber, comprises the following steps：
1)：By 100 parts of rubber, zinc oxide 4-8 parts, stearic acid 6-10 parts, carbon black 100-160 parts,
Plasticizer 20-30 parts, kneaded 90 seconds in banbury, the first elastomeric compound is obtained；
In the present invention, first by by rubber, zinc oxide, stearic acid, carbon black and plasticizer in banbury
Interior mixing 90 seconds, is obtained the first elastomeric compound.
2)：By 100 parts of rubber, plasticizer 20-30 parts, nano silicon 5-20 parts, nano silicon nitride
Aluminium 20-50 parts, age resistor 6-10 parts, accelerator 3-6 parts, antiscorching agent 2-4 parts, mixed in banbury
Refining 90 seconds, is obtained the second elastomeric compound；
In the present invention, by rubber, plasticizer, nano silicon, nano aluminum nitride, age resistor, rush
Enter agent and antiscorching agent and 90 seconds prepared second elastomeric compounds are kneaded in banbury.
3)：First elastomeric compound, second elastomeric compound and vulcanizing agent are kneaded on a mill,
And double-dealing and triangle bag 10~20 times is beaten at 45-55 DEG C to well mixed, and bottom sheet, mixing is obtained
Film；
In the present invention, obtained first elastomeric compound and the second elastomeric compound are first carried out in the presence of vulcanizing agent
Mixing makes the first elastomeric compound and the second elastomeric compound well mixed, and mixed sheet is obtained.
4)：The mixed sheet is carried out into vulcanizing treatment so that heat-conducting type rubber is obtained on flat board sulphur machine, its
In, vulcanizing treatment condition is：Curing temperature is 158-165 DEG C, and cure time is 25min, pressure is 10~
15MPa。
In the present invention, obtained mixed sheet is carried out into vulcanizing treatment on flat board sulphur machine, treat cure time
Heat-conducting type rubber is obtained after end.
Wherein, nano aluminum nitride is heat filling, by adding nano aluminum nitride so that heat-conducting type rubber has
There is good heat conductivility, when being so prepared from the stator of screw pump using heat-conducting type rubber, stator
Heat conductivility preferably, rotor can rapidly be rotated the heat transfer for producing and gone out, and be significantly improved
The heat problem of transmission of stator, the speed aging so as to reduce stator so extends the use of screw pump
In the life-span, in the present invention, the number of nano aluminum nitride is 20-50 parts, for example, can be 30 parts, it is also possible to
It is 40 parts or 50 parts.
Nano silicon composition reinforcement and filler body in carbon black and the second elastomeric compound in first elastomeric compound
System so that heat-conducting type rubber with good mechanical performance, in the present invention, part of nano silicon
Number is 5-20 parts, for example, can be 8 parts, 10 parts, 15 parts or 20 parts.In the present invention, the matter of carbon black
Amount number is 100-160 parts, for example, can be 110 parts, 120 parts, 130 parts or 150 parts.
Wherein, the mass fraction of zinc oxide is 4-8 parts, for example, can be 5 parts, 6 parts, 7 parts or 8 parts,
Stearic mass fraction is 6-10 parts, for example, can be 7 parts, 8 parts, 9 parts or 10 parts, plasticizer
Mass fraction be 40-60 part, for example can be 50 parts, 55 parts or 60 parts, age resistor can be benzene
Amines antioxidants, the mass fraction of age resistor is 6-10 part, for example can be 7 parts, 8 parts, 9 parts or
10 parts, the mass fraction of vulcanizing agent is 4-8 parts, for example, can be 5 parts, 6 parts, 7 parts or 8 parts, is promoted
Enter the mass fraction of agent for 3-6 parts, for example, can be 4 parts, 5 parts or 6 parts, the mass fraction of antiscorching agent
It is 2-4 parts, for example, can is 3 parts or 4 parts.
Wherein, the rubber is obtained by nitrile rubber NBR and polyvinylchloride blending
The coprecipitated glue of NBR/PVC, wherein, the acrylonitrile content in the coprecipitated glue of NBR/PVC is 26%-30%,
Mooney viscosity is 45 ± 5, is blended with polyvinylchloride from nitrile rubber NBR by rubber and is obtained
The coprecipitated glue of NBR/PVC, so, maintaining the basis of the preferable oil resistivitys of NBR and cross linkable
On, ozone resistance, weatherability and the ageing resistance of NBR are considerably improved, such heat-conducting type rubber
Oil resistivity and ageing resistance are significantly improved.
Wherein, the carbon black is any one in carbon black N330, carbon black N550 or carbon black N774,
Wherein, carbon black is important reinforcing filler in reinforcing and filling system, to the Physical Mechanical of rubber size
Energy and processing technology all have a major impact, carbon black N330, the carbon black N550 or carbon black chosen in the present invention
N774 is the normal carbon black of curingprocess rate.
Wherein, the particle diameter of the nano silicon is 45 ± 5nm；The particle diameter of the nano aluminum nitride is
30±5nm。
Wherein, the plasticizer is that molecular weight is the polyesters plasticizer of 1000-8000, wherein, polyester
The molecular weight of class plasticizer can be 2000,4000,6000 or 7000.
Wherein, the age resistor can select aniline type antioxidant, be specifically as follows 4.4 a pair ofs (2.2- bis-
Methyl-benzyl) diphenylamines.
Wherein, the vulcanizing agent is sulphur.
Wherein, the accelerator is 2- benzothiazolyl mercaptans, dibenzothiazyl disulfide and N- cyclohexyl
The mixture of one or more in -2-[4-morpholinodithio sulfenamide, such as accelerator can be 2- mercapto benzene
And the mixture that thiazole and dibenzothiazyl disulfide are mixed to get according to arbitrary proportion, accelerator can be with
For 2- benzothiazolyl mercaptans, dibenzothiazyl disulfide and N cyclohexyl 2 benzothiazole sulfenamide are pressed
According to the mixture that arbitrary proportion is mixed to get, or accelerator can be 2- benzothiazolyl mercaptans,
Or dibenzothiazyl disulfide, or N cyclohexyl 2 benzothiazole sulfenamide.
Wherein, the antiscorching agent is N- cyclohexyl thio O-phthalic phthalimides, N- nitroso -2,2,4-
Trimethyl -1, the mixture of one or more in 2- EEDQ polymer, for example, antiscorching agent can be
N- cyclohexyl thio O-phthalic phthalimides, or can be N- nitroso -2,2,4- trimethyl -1,2-
EEDQ polymer, or be N- cyclohexyl thio O-phthalic phthalimides and N- nitroso -2,2,
4- trimethyl -1, the mixture that 2- EEDQs polymer is mixed to get according to arbitrary proportion.
The present invention can also provide a kind of screw pump, and the screw pump at least includes stator and rotor, wherein fixed
It is obtained in rigid body overcoat that son is that the heat-conducting type rubber prepared by above-mentioned preparation method casts in, due to preparing
Heat-conducting type rubber there is good heat conductivility, therefore, the stator as obtained in the heat-conducting type rubber also has
There is good heat conductivility, when rotor is rotated in the stator, the heat of generation can be quick by stator
Pass, the aging speed of such stator decreases, and then extends the service life of screw pump.
The heat-conducting type rubber that the present invention is provided, by by 200 parts of rubber, zinc oxide 4-8 parts, stearic acid
6-10 parts, carbon black 100-160 parts, nano silicon 5-20 parts, nano aluminum nitride 20-50 parts, increase
40-60 parts of agent of modeling, age resistor 6-10 parts, vulcanizing agent 4-8 parts, accelerator 3-6 parts, antiscorching agent 2-4
Part composition so that the heat-conducting type rubber has good heat conductivility, significantly improves the heat-conducting type rubber
Glue quickly cannot enter heat as the heat problem of transmission of stator so as to solve existing elastomer stator
Row conduction causes the easily aging technical problem of elastomer stator.The present invention is by proposing a kind of heat-conducting type rubber
Preparation method, preparation is simple for this, and the heat-conducting type rubber of preparation has good heat conductivility.This
Invention by by heat-conducting type rubber applications on the stator of subsurface progressive cavity, due to the heat-conducting type rubber have it is good
Heat conductivility so that the heat conductivility of stator is good, and the heat transfer of generation can be gone out in time,
So as to reduce the aging speed of stator, and then the service life of screw pump can be extended.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to reality
The accompanying drawing to be used needed for example or description of the prior art is applied to be briefly described, it should be apparent that, under
Accompanying drawing in the description of face is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the heat-conducting type method for preparing rubber of the embodiment of the present invention one.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with this hair
Accompanying drawing in bright embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment for obtaining, belongs to the scope of protection of the invention.
Embodiment 1
In the present embodiment, the raw material of heat-conducting type rubber is constituted and the number of each composition is as follows：
Rubber：200 parts；
Zinc oxide：4 parts；
Stearic acid：6 parts；
Carbon black：100 parts；
Nano silicon：5 parts；
Nano aluminum nitride：20 parts；
Plasticizer：40 parts；
Age resistor：6 parts；
Vulcanizing agent：4 parts；
Accelerator：3 parts；
Antiscorching agent：2 parts；
Wherein, rubber is by nitrile rubber (Nitrile-Butadiene Rubber, abbreviation：NBR) with it is poly-
Vinyl chloride (polyvinylchloride, referred to as：PVC the coprecipitated glue of obtained NBR/PVC) is blended, its
In, the acrylonitrile content in the coprecipitated glue of NBR/PVC is 26%-30%, and Mooney viscosity is 45 ± 5.
Wherein, carbon black selects carbon black N330.
Wherein, the particle diameter of nano silicon is 45 ± 5nm.
Wherein, the particle diameter of nano aluminum nitride is 30 ± 5nm.
Wherein, plasticizer is polyesters plasticizer that molecular weight is 1000.
Wherein, age resistor is 4.4 a pair ofs (2.2- dimethyl benzyls) diphenylamines.
Wherein, vulcanizing agent is sulphur.
Wherein, accelerator is 2- benzothiazolyl mercaptans.
Wherein, antiscorching agent is N- cyclohexyl thio O-phthalic phthalimides.
Fig. 1 is the schematic flow sheet of the heat-conducting type method for preparing rubber of the embodiment of the present invention one, such as Fig. 1 institutes
Show, the specific preparation process of heat-conducting type rubber is as follows：
Step 101：100 parts of rubber, 4 parts of zinc oxide, 6 parts of stearic acid, 100 parts of carbon black are increased
20 parts of agent of modeling, kneads 90 seconds in banbury, and the first elastomeric compound is obtained.
Step 102：By 100 parts of rubber, 20 parts of plasticizer, 5 parts of nano silicon, nano silicon nitride
20 parts of aluminium, 6 parts of age resistor, 3 parts of accelerator, 2 parts of antiscorching agent is kneaded 90 seconds in banbury,
The second elastomeric compound is obtained.
Step 103：By obtained first elastomeric compound, 4 parts of the second elastomeric compound and vulcanizing agent are on a mill
Kneaded, and double-dealing and triangle bag is beaten at 50 DEG C and be extremely well mixed for 10~20 times, and bottom sheet,
Mixed sheet is obtained.
Step 104：Obtained mixed sheet is carried out into vulcanizing treatment on flat board sulphur machine, heat-conducting type is obtained
Rubber, wherein, vulcanizing treatment condition is：Curing temperature is 160 DEG C, and cure time is 25min, pressure
It is 10~15MPa.
The heat-conducting type rubber that will be prepared in embodiment 1 obtains the thermal conductivity factor of heat-conducting type rubber by detection
It is 0.55W/ (m DEG C) as a comparison, the rubber of existing making stator to be measured, measure is led
Hot coefficient is 0.25W/ (m DEG C), therefore, heat-conducting type rubber obtained in the present embodiment is with existing for making
The rubber for making stator is compared, and the heat-conducting type rubber of this hair has good heat conductivility, so by above-mentioned system
When heat-conducting type rubber prepared by Preparation Method casts in the stator that screw pump is obtained in rigid body overcoat, stator also has
There is good heat conductivility, rotor can be rotated the heat for producing and rapidly passed, so as to avoid
Stator is in the condition of high temperature, which decreases the aging speed of stator.
Embodiment 2
In the present embodiment, the raw material of heat-conducting type rubber is constituted and the number of each composition is as follows：
Rubber：200 parts；
Zinc oxide：8 parts；
Stearic acid：10 parts；
Carbon black：160 parts；
Nano silicon：20 parts；
Nano aluminum nitride：50 parts；
Plasticizer：60 parts；
Age resistor：10 parts；
Vulcanizing agent：8 parts；
Accelerator：6 parts；
Antiscorching agent：4 parts；
Wherein, rubber is by nitrile rubber (Nitrile-Butadiene Rubber, abbreviation：NBR) with it is poly-
Vinyl chloride (polyvinylchloride, referred to as：PVC the coprecipitated glue of obtained NBR/PVC) is blended, its
In, the acrylonitrile content in the coprecipitated glue of NBR/PVC is 26%-30%, and Mooney viscosity is 45 ± 5.
Wherein, carbon black selects carbon black N550.
Wherein, the particle diameter of nano silicon is 45 ± 5nm.
Wherein, the particle diameter of nano aluminum nitride is 30 ± 5nm.
Wherein, plasticizer is polyesters plasticizer that molecular weight is 4000.
Wherein, age resistor is 4.4 a pair ofs (2.2- dimethyl benzyls) diphenylamines.
Wherein, vulcanizing agent is sulphur.
Wherein, accelerator dibenzothiazyl disulfide.
Wherein, antiscorching agent is N- nitroso -2,2,4- trimethyl -1,2- EEDQ polymer.
The specific preparation process of heat-conducting type rubber is as follows：
1)：By 100 parts of rubber, 8 parts of zinc oxide, 10 parts of stearic acid, 160 parts of carbon black, plasticizer
30 parts, kneaded 90 seconds in banbury, the first elastomeric compound is obtained；
2)：By 100 parts of rubber, 30 parts of plasticizer, 20 parts of nano silicon, nano aluminum nitride 50
Part, 10 parts of age resistor, 6 parts of accelerator, 4 parts of antiscorching agent is kneaded 90 seconds in banbury, is obtained
Second elastomeric compound.
3)：By obtained first elastomeric compound, 8 parts of the second elastomeric compound and vulcanizing agent are mixed on a mill
Refine, and double-dealing and triangle bag is beaten at 55 DEG C and be extremely well mixed for 10~20 times, and bottom sheet, it is obtained and mixes
Refining glue piece.
4)：Obtained mixed sheet is carried out into vulcanizing treatment on flat board sulphur machine, heat-conducting type rubber is obtained,
Wherein, vulcanizing treatment condition is：Curing temperature is 165 DEG C, and cure time is 25min, pressure is 10~
15MPa。
The heat-conducting type rubber that will be prepared in embodiment 2 obtains the thermal conductivity factor of heat-conducting type rubber by detection
It is 1.05W/ (m DEG C) as a comparison, the rubber of existing making stator to be measured, measure is led
Hot coefficient is 0.25W/ (m DEG C), therefore, heat-conducting type rubber obtained in the present embodiment is with existing for making
The rubber for making stator is compared, with good heat conductivility.The heat conduction for so being prepared by above-mentioned preparation method
When type rubber casts in the stator that screw pump is obtained in rigid body overcoat, stator also has good heat conductivility,
Rotor can be rotated the heat for producing rapidly to pass, the condition of high temperature is in so as to avoid stator,
Which decrease the aging speed of stator.
Embodiment 3
In the present embodiment, the raw material of heat-conducting type rubber is constituted and the number of each composition is as follows：
Rubber：200 parts；
Zinc oxide：6 parts；
Stearic acid：8 parts；
Carbon black：120 parts；
Nano silicon：10 parts；
Nano aluminum nitride：36 parts；
Plasticizer：50 parts；
Age resistor：8 parts；
Vulcanizing agent：6 parts；
Accelerator：5 parts；
Antiscorching agent：3 parts；
Wherein, rubber is by nitrile rubber (Nitrile-Butadiene Rubber, abbreviation：NBR) with it is poly-
Vinyl chloride (polyvinylchloride, referred to as：PVC the coprecipitated glue of obtained NBR/PVC) is blended, its
In, the acrylonitrile content in the coprecipitated glue of NBR/PVC is 26%-30%, and Mooney viscosity is 45 ± 5.
Wherein, carbon black selects carbon black N774.
Wherein, the particle diameter of nano silicon is 45 ± 5nm.
Wherein, the particle diameter of nano aluminum nitride is 30 ± 5nm.
Wherein, plasticizer is polyesters plasticizer that molecular weight is 8000.
Wherein, age resistor is 4.4 a pair ofs (2.2- dimethyl benzyls) diphenylamines.
Wherein, vulcanizing agent is sulphur.
Wherein, accelerator be 2- benzothiazolyl mercaptans and N cyclohexyl 2 benzothiazole sulfenamide according to
Mass ratio is 1：1 mixture being mixed to get.
Wherein, antiscorching agent is N- cyclohexyl thio O-phthalic phthalimides and N- nitroso -2,2,4- tri-
Methyl isophthalic acid, 2- EEDQs polymer is 1 according to mass ratio：1 is mixed to get mixture.
The specific preparation process of heat-conducting type rubber is as follows：
1)：By 100 parts of rubber, 6 parts of zinc oxide, 8 parts of stearic acid, 120 parts of carbon black, plasticizer 25
Part, kneaded 90 seconds in banbury, the first elastomeric compound is obtained；
2)：By 100 parts of rubber, 25 parts of plasticizer, 10 parts of nano silicon, nano aluminum nitride 36
Part, 8 parts of age resistor, 5 parts of accelerator, 3 parts of antiscorching agent is kneaded 90 seconds in banbury, is obtained the
Two elastomeric compounds.
3)：By obtained first elastomeric compound, 6 parts of the second elastomeric compound and vulcanizing agent are mixed on a mill
Refine, and double-dealing and triangle bag is beaten at 50 DEG C and be extremely well mixed for 10~20 times, and bottom sheet, it is obtained and mixes
Refining glue piece.
4)：Obtained mixed sheet is carried out into vulcanizing treatment on flat board sulphur machine, heat-conducting type rubber is obtained,
Wherein, vulcanizing treatment condition is：Curing temperature is 160 DEG C, and cure time is 25min, pressure is 10~
15MPa。
The heat-conducting type rubber that will be prepared in embodiment 3 obtains the thermal conductivity factor of heat-conducting type rubber by detection
It is 0.92W/ (m DEG C) as a comparison, the rubber of existing making stator to be measured, measure is led
Hot coefficient is 0.25W/ (m DEG C), therefore, heat-conducting type rubber obtained in the present embodiment is with existing for making
The rubber for making stator is compared, with good heat conductivility.The heat conduction for so being prepared by above-mentioned preparation method
When type rubber casts in the stator that screw pump is obtained in rigid body overcoat, stator also has good heat conductivility,
Rotor can be rotated the heat for producing rapidly to pass, the condition of high temperature is in so as to avoid stator,
Which decrease the aging speed of stator.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than right
Its limitation；Although being described in detail to the present invention with reference to foregoing embodiments, this area it is common
Technical staff should be understood：It can still modify to the technical scheme described in foregoing embodiments,
Or equivalent is carried out to which part or all technical characteristic；And these modifications or replacement, and
The scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution is not made.
Claims (10)
1. a kind of heat-conducting type rubber, it is characterised in that the mass fraction of the heat-conducting type rubber is：Rubber
200 parts, zinc oxide 4-8 parts, stearic acid 6-10 parts, carbon black 100-160 parts, nano silicon 5-20
Part, nano aluminum nitride 20-50 parts, plasticizer 40-60 parts, age resistor 6-10 parts, vulcanizing agent 4-8 parts,
Accelerator 3-6 parts, antiscorching agent 2-4 parts.
2. heat-conducting type rubber according to claim 1, it is characterised in that the rubber is by butyronitrile
Rubber NBR and the polyvinylchloride blending coprecipitated glue of obtained NBR/PVC, wherein, it is described
Acrylonitrile content in the coprecipitated glue of NBR/PVC is 26%-30%, and Mooney viscosity is 45 ± 5.
3. heat-conducting type rubber according to claim 2, it is characterised in that the carbon black is carbon black
Any one in N330, carbon black N550 or carbon black N774.
4. according to any described heat-conducting type rubber of claim 1-3, it is characterised in that the nanometer two
The particle diameter of silica is 45 ± 5nm；The particle diameter of the nano aluminum nitride is 30 ± 5nm.
5. according to any described heat-conducting type rubber of claim 1-3, it is characterised in that the plasticizer
For molecular weight is the polyesters plasticizer of 1000-8000.
6. according to any described heat-conducting type rubber of claim 1-3, it is characterised in that the age resistor
It is 4.4 a pair ofs (2.2- dimethyl benzyls) diphenylamines.
7. according to any described heat-conducting type rubber of claim 1-3, it is characterised in that the vulcanizing agent
It is sulphur.
8. according to any described heat-conducting type rubber of claim 1-3, it is characterised in that the accelerator
For in 2- benzothiazolyl mercaptans, dibenzothiazyl disulfide and N cyclohexyl 2 benzothiazole sulfenamide
The mixture of one or more.
9. according to any described heat-conducting type rubber of claim 1-3, it is characterised in that the antiscorching agent
It is N- cyclohexyl thio O-phthalic phthalimides, N- nitroso -2,2,4- trimethyl -1,2- EEDQs
The mixture of one or more in polymer.
10. the preparation method of any described heat-conducting type rubber of claim 1-9, it is characterised in that side
Method comprises the following steps：
1)：By 100 parts of rubber, zinc oxide 4-8 parts, stearic acid 6-10 parts, carbon black 100-160 parts,
Plasticizer 20-30 parts, kneaded 90 seconds in banbury, the first elastomeric compound is obtained；
2)：By 100 parts of rubber, plasticizer 20-30 parts, nano silicon 5-20 parts, nano silicon nitride
Aluminium 20-50 parts, age resistor 6-10 parts, accelerator 3-6 parts, antiscorching agent 2-4 parts, mixed in banbury
Refining 90 seconds, is obtained the second elastomeric compound；
3)：First elastomeric compound, second elastomeric compound and vulcanizing agent are kneaded on a mill,
And double-dealing and triangle bag 10~20 times is beaten at 45-55 DEG C to well mixed, and bottom sheet, mixing is obtained
Film；
4)：The mixed sheet is carried out into vulcanizing treatment on flat board sulphur machine, heat-conducting type rubber is obtained, its
In, vulcanizing treatment condition is：Curing temperature is 158-165 DEG C, and cure time is 25min, pressure is 10~
15MPa。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113429689A (en) * | 2021-06-29 | 2021-09-24 | 三角轮胎股份有限公司 | Ultra-high heat conduction tire vulcanization capsule rubber composition and process for producing capsule |
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| CN102504358A (en) * | 2011-11-22 | 2012-06-20 | 广东石油化工学院 | High-heat-conductivity rubber composite material and preparation method thereof |
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| CN102504358A (en) * | 2011-11-22 | 2012-06-20 | 广东石油化工学院 | High-heat-conductivity rubber composite material and preparation method thereof |
| CN104262707A (en) * | 2014-09-25 | 2015-01-07 | 沈阳化工大学 | Light-colored NBR (nitrile-butadiene rubber)/PVC (polyvinyl chloride) elastomer taking LNBR (liquid nitrile-butadiene rubber) as plasticizer and preparation method of light-colored NBR/PVC elastomer |
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| CN113429689A (en) * | 2021-06-29 | 2021-09-24 | 三角轮胎股份有限公司 | Ultra-high heat conduction tire vulcanization capsule rubber composition and process for producing capsule |
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Application publication date: 20170613 |