CN106084501A - A kind of ethylene propylene diene rubber insulant and preparation method thereof - Google Patents
A kind of ethylene propylene diene rubber insulant and preparation method thereof Download PDFInfo
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- CN106084501A CN106084501A CN201610626717.6A CN201610626717A CN106084501A CN 106084501 A CN106084501 A CN 106084501A CN 201610626717 A CN201610626717 A CN 201610626717A CN 106084501 A CN106084501 A CN 106084501A
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- ethylene propylene
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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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- 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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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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
- C08L2312/00—Crosslinking
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- Polymers & Plastics (AREA)
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Abstract
The invention provides a kind of ethylene propylene diene rubber insulant and preparation method thereof.This ethylene propylene diene rubber insulant, is made up of the component of following weight portion: ethylene propylene diene rubber 50～75 parts；Hydrogenated nitrile-butadiene rubber 20～30 parts；Chlorinated polyethylene rubber 5～10 parts；Active calcium silicate 10～20 parts；Naphthene base crude oil 5～10 parts；Magnesium hydroxide 50～70 parts；Grafting maleic anhydride with ethylene propylene terpolymer 2～6 parts；Furnace black 5～30 parts；Stearic acid 2～5 parts；Zinc oxide 1～3 parts；Age resistor 2～4 parts；Accelerator 0.5～3 parts；And sulfur 0.5～3 parts.Above-mentioned ethylene propylene diene rubber insulant, with ethylene propylene diene rubber, hydrogenated nitrile-butadiene rubber and chlorinated polyethylene rubber as primary raw material, make three's performance complement, improve the thermostability of insulant, weatherability and oil resistivity so as to get ethylene propylene diene rubber insulant there is good insulating properties, anti-flammability and mechanical strength.
Description
Technical field
The present invention relates to polymeric material field, particularly relate to a kind of ethylene propylene diene rubber insulant and preparation side thereof
Method.
Background technology
The copolymer that ethylene propylene diene rubber is made up of ethylene, propylene and a small amount of non-conjugated diene hydrocarbon, because its main chain is
It is made up of chemically stable saturated hydrocarbons, only containing unsaturated double-bond in side chain, therefore its resistance to ozone, the performance such as heat-resisting, weather-proof
Excellent.Can be widely used for automobile component, building water-proof material, electric wire and cable jacket, heat-resistant rubber hose, adhesive tape, automotive sealant
In field.But ethylene propylene diene rubber there is also the shortcomings such as not oil resistant, poor adhesion, curingprocess rate be slow.Along with world industry
Fast development, requirement the most qualitative to ethylene propylene diene rubber quantity is more and more higher, by carrying out ethylene propylene diene rubber
Modification meets the actual techniques of modern society requires it is the current hot issue studied.
Summary of the invention
Based on this, it is necessary to ethylene propylene diene rubber insulant providing a kind of excellent insulation performance and preparation method thereof.
A kind of ethylene propylene diene rubber insulant, described ethylene propylene diene rubber insulant is by the component group of following weight portion
Become:
Ethylene propylene diene rubber 50～75 parts；Hydrogenated nitrile-butadiene rubber 20～30 parts；Chlorinated polyethylene rubber 5～10 parts；Activity
Calcium silicates 10～20 parts；Naphthene base crude oil 5～10 parts；Magnesium hydroxide 50～70 parts；Grafting maleic anhydride with ethylene propylene terpolymer 2～6
Part；Furnace black 5～30 parts；Stearic acid 2～5 parts；Zinc oxide 1～3 parts；Age resistor 2～4 parts；Accelerator 0.5～3 parts；And sulfur
Sulphur 0.5～3 parts.
Wherein in an embodiment, the Mooney viscosity ML (1+4) 100 DEG C of described ethylene propylene diene rubber is 40～60, second
Alkene content is 45～50%, and molecular weight is 5000～8000.
Wherein in an embodiment, described age resistor is at least in anti-aging agent RD, antioxidant MB, antioxidant A W
Kind.
Wherein in an embodiment, accelerator is at least one in captax and Vulcanization accelerator TMTD.
The preparation method of a kind of ethylene propylene diene rubber insulant, comprises the following steps:
By the ethylene propylene diene rubber of 50～75 weight portions, 20～30 hydrogenated nitrile-butadiene rubbers of weight portion, the chlorination of 5～10 parts
Polyethylene rubber plasticates 2～5min the most on a mill until, then three is jointly put in mill mixing, treats that three is mixing
Uniformly and after bag roller, adjusting roller spacing is 2～3mm, is sequentially added into the furnace black of 5～30 weight portions, 5～10 rings of weight portion
Alkyl oil, 2～6 grafting maleic anhydride with ethylene propylene terpolymer, 50～70 magnesium hydroxide, 10～20 weight of weight portion of weight portion
Part active calcium silicate, 2～4 age resistor of weight portion, mixing 10～20min, to uniformly, open cooling water simultaneously and make roller temperature control
System, at 40～60 DEG C, obtains mixed material；
In described mixed material, be sequentially added into the zinc oxide of 1～3 weight portions, 2～5 stearic acid of weight portion, mixing 3～
6min, controlling roller temperature is 40～60 DEG C, obtains elastomeric compound；
In described elastomeric compound, add the sulfur of 0.5～3 weight portions, 0.5～3 accelerator of weight portion, mixing 0.5～
1.5min, thin catharsis sheet, after room temperature cooling places 22～26h, vulcanizing press molds sulfidization molding, obtains EPDM
Rubber insulation material.
Wherein in an embodiment, the Mooney viscosity ML (1+4) 100 DEG C of described ethylene propylene diene rubber is 40～60, second
Alkene content is 45～50%, and molecular weight is 5000～8000.
Wherein in an embodiment, described age resistor is at least in anti-aging agent RD, antioxidant MB, antioxidant A W
Kind.
Wherein in an embodiment, accelerator is at least one in captax and Vulcanization accelerator TMTD.
Wherein in an embodiment, the condition of described vulcanizing press compression molding is: curing temperature is 155～160
DEG C, pressure 4～8MPa.
Above-mentioned ethylene propylene diene rubber insulant, with ethylene propylene diene rubber, hydrogenated nitrile-butadiene rubber and chlorinated polyethylene rubber
For primary raw material, make three's performance complement, improve the thermostability of insulant, weatherability and oil resistivity, simultaneously because add
Magnesium hydroxide as fire retardant, with grafting maleic anhydride with ethylene propylene terpolymer as bulking agent improve between each material compatible
Property；Active calcium silicate specific surface area is big, and its rich surface contains silicone hydroxyl, is filled in ethylene propylene diene rubber insulant, can be substantially
Ground promote mixed rubber early stage sulfuration, improve the slow problem of mixed rubber curingprocess rate so as to get ethylene propylene diene rubber insulation
Material has good insulating properties, anti-flammability and mechanical strength.
Accompanying drawing explanation
Fig. 1 is the flow chart of the preparation method of the ethylene propylene diene rubber insulant of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
A kind of ethylene propylene diene rubber insulant, is made up of the component of following weight portion: ethylene propylene diene rubber 50～75 parts；
Hydrogenated nitrile-butadiene rubber 20～30 parts；Chlorinated polyethylene rubber 5～10 parts；Active calcium silicate 10～20 parts；Naphthene base crude oil 5～10
Part；Magnesium hydroxide 50～70 parts；Grafting maleic anhydride with ethylene propylene terpolymer 2～6 parts；Furnace black 5～30 parts；Stearic acid 2～5
Part；Zinc oxide 1～3 parts；Age resistor 2～4 parts；Accelerator 0.5～3 parts；And sulfur 0.5～3 parts.
Wherein, the Mooney viscosity ML (1+4) 100 DEG C of ethylene propylene diene rubber is 40～60, and ethylene contents is 45～50%, point
Son amount is 5000～8000.
Age resistor is at least one in anti-aging agent RD, antioxidant MB, antioxidant A W.
Accelerator is at least one in captax and Vulcanization accelerator TMTD.
Above-mentioned ethylene propylene diene rubber insulant, with ethylene propylene diene rubber, hydrogenated nitrile-butadiene rubber and chlorinated polyethylene rubber
For primary raw material, make three's performance complement, improve the thermostability of insulant, weatherability and oil resistivity, simultaneously because add
Magnesium hydroxide as fire retardant, with grafting maleic anhydride with ethylene propylene terpolymer as bulking agent improve between each material compatible
Property；Active calcium silicate specific surface area is big, and its rich surface contains silicone hydroxyl, is filled in ethylene propylene diene rubber insulant, can be substantially
Ground promote mixed rubber early stage sulfuration, improve the slow problem of mixed rubber curingprocess rate so as to get ethylene propylene diene rubber insulation
Material has good insulating properties, anti-flammability and mechanical strength.
Refer to Fig. 1, the preparation method of a kind of ethylene propylene diene rubber insulant, comprise the following steps:
Step S100, by the ethylene propylene diene rubber of 50～75 weight portions, 20～30 weight portion hydrogenated nitrile-butadiene rubber, 5～
The chlorinated polyethylene rubber of 10 parts plasticates 2～5min the most on a mill until, then three is jointly put in mill mixing,
Mixing uniformly and after bag roller until three, adjusting roller spacing is 2～3mm, is sequentially added into furnace black, 5～10 of 5～30 weight portions
The naphthene base crude oil of weight portion, 2～6 weight portion grafting maleic anhydride with ethylene propylene terpolymer, 50～70 weight portion magnesium hydroxide,
The active calcium silicate of 10～20 weight portions, 2～4 age resistor of weight portion, mixing 10～20min, to uniformly, open cooling simultaneously
Water makes roller temperature control at 40～60 DEG C, obtains mixed material.
Wherein, the Mooney viscosity ML (1+4) 100 DEG C of ethylene propylene diene rubber is 40～60, and ethylene contents is 45～50%, point
Son amount is 5000～8000.
Age resistor is at least one in anti-aging agent RD, antioxidant MB, antioxidant A W.
Accelerator is at least one in captax and Vulcanization accelerator TMTD.
Step S200, in mixed material, it is sequentially added into the zinc oxide of 1～3 weight portions, 2～5 stearic acid of weight portion, mixed
Refining 3～6min, controlling roller temperature is 40～60 DEG C, obtains elastomeric compound.
Step S300, in elastomeric compound, add the sulfur of 0.5～3 weight portions, 0.5～3 accelerator of weight portion, mixing
0.5～1.5min, thin catharsis sheet, after room temperature cooling places 22～26h, vulcanizing press molds sulfidization molding, obtains three
Unit's ethylene propylene rubber insulation material.
Wherein, the condition of vulcanizing press compression molding is: curing temperature is 155～160 DEG C, pressure 4～8MPa.
The preparation method of above-mentioned ethylene propylene diene rubber insulant, owing to first three kinds of rubber being plasticated the most respectively, rear mixing
Mixing with unclassified stores afterwards, mix homogeneously, make the compatibility between each material preferable, prepared ethylene propylene diene rubber is exhausted
Edge material has mechanical performance and the insulating properties of excellence.
Below in conjunction with specific embodiment, the ethylene propylene diene rubber insulant of the present invention is further elaborated.
Embodiment 1
The preparation method of a kind of ethylene propylene diene rubber insulant, comprises the following steps:
The ethylene propylene diene rubber of 50 weight portions, the hydrogenated nitrile-butadiene rubber of 20 weight portions, the chlorinated polyethylene rubber of 5 parts are divided
Plasticate 2min the most on a mill until, then three is jointly put in mill mixing, mixing uniformly and after bag roller until three, adjusts
Whole roller spacing is 2mm, is sequentially added into the furnace black of 5 weight portions, the naphthene base crude oil of 5 weight portions, the ethylene-propylene-diene monomer of 2 weight portions
Glue grafted maleic anhydride, the magnesium hydroxide of 50 weight portions, the active calcium silicate of 10 weight portions, the anti-aging agent RD of 2 weight portions, mixing
10min, to uniformly, opens cooling water simultaneously and makes roller temperature control at 60 DEG C, obtain mixed material.
In mixed material, it is sequentially added into the zinc oxide of 1 weight portion, the stearic acid of 2 weight portions, mixing 3min, controls roller temperature
It is 60 DEG C, obtains elastomeric compound.
The sulfur of 0.5 weight portion, the captax of 0.5 weight portion, mixing 1min, thin catharsis sheet, room is added in elastomeric compound
After 24h is placed in temperature cooling, vulcanizing press molds sulfidization molding, obtains ethylene propylene diene rubber insulant.
Wherein, the Mooney viscosity ML (1+4) 100 DEG C of ethylene propylene diene rubber is 60, and ethylene contents is 50%, and molecular weight is
6000；The condition of vulcanizing press compression molding is: curing temperature is 155 DEG C, pressure 6MPa.
The performance of ethylene propylene diene rubber insulant prepared by said method is:
Hot strength 16MPa, tearing strength 16N/mm, elongation at break 380%, specific insulation 2.8 × 1015Ω m,
Oxygen index (OI) 33.
Embodiment 2
The preparation method of a kind of ethylene propylene diene rubber insulant, comprises the following steps:
By the ethylene propylene diene rubber of 75 weight portions, the hydrogenated nitrile-butadiene rubber of 30 weight portions, the chlorinated polyethylene rubber of 10 parts
Plasticate 5min the most on a mill until, then three is jointly put in mill mixing, mixing uniformly and after bag roller until three,
Adjusting roller spacing is 3mm, is sequentially added into the ternary second of the furnace black of 30 weight portions, the naphthene base crude oil of 10 weight portions, 6 weight portions
Third grafting rubbers maleic anhydride, the magnesium hydroxide of 70 weight portions, the active calcium silicate of 20 weight portions, the anti-aging agent RD of 4 weight portions,
Mixing 20min, to uniformly, opens cooling water simultaneously and makes roller temperature control at 60 DEG C, obtain mixed material.
In mixed material, it is sequentially added into the zinc oxide of 3 weight portions, the stearic acid of 5 weight portions, mixing 6min, controls roller temperature
It is 60 DEG C, obtains elastomeric compound.
The sulfur of 3 weight portions, the captax of 3 weight portions, mixing 1.5min, thin catharsis sheet, room temperature is added in elastomeric compound
After 26h is placed in cooling, vulcanizing press molds sulfidization molding, obtains ethylene propylene diene rubber insulant.
Wherein, the Mooney viscosity ML (1+4) 100 DEG C of ethylene propylene diene rubber is 60, and ethylene contents is 53%, and molecular weight is
8000；The condition of vulcanizing press compression molding is: curing temperature is 160 DEG C, pressure 8MPa.
The performance of ethylene propylene diene rubber insulant prepared by said method is:
Hot strength 18MPa, tearing strength 17N/mm, elongation at break 410%, specific insulation 2.9 × 1015Ω m,
Oxygen index (OI) 34.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. an ethylene propylene diene rubber insulant, it is characterised in that described ethylene propylene diene rubber insulant is by following weight
The component composition of part:
Ethylene propylene diene rubber 50～75 parts；Hydrogenated nitrile-butadiene rubber 20～30 parts；Chlorinated polyethylene rubber 5～10 parts；Active silicic acid
Calcium 10～20 parts；Naphthene base crude oil 5～10 parts；Magnesium hydroxide 50～70 parts；Grafting maleic anhydride with ethylene propylene terpolymer 2～6 parts；Stove
Method white carbon black 5～30 parts；Stearic acid 2～5 parts；Zinc oxide 1～3 parts；Age resistor 2～4 parts；Accelerator 0.5～3 parts；And sulfur 0.5
～3 parts.
Ethylene propylene diene rubber insulant the most according to claim 1, it is characterised in that the door of described ethylene propylene diene rubber
Buddhist nun's viscosity ML (1+4) 100 DEG C is 40～60, and ethylene contents is 45～50%, and molecular weight is 5000～8000.
Ethylene propylene diene rubber insulant the most according to claim 1, it is characterised in that described age resistor is age resistor
At least one in RD, antioxidant MB, antioxidant A W.
Ethylene propylene diene rubber insulant the most according to claim 1, it is characterised in that accelerator is captax and rush
Enter at least one in agent TMTD.
5. the preparation method of an ethylene propylene diene rubber insulant, it is characterised in that comprise the following steps:
By the ethylene propylene diene rubber of 50～75 weight portions, 20～30 hydrogenated nitrile-butadiene rubbers of weight portion, the chlorinated polyethylene of 5～10 parts
Alkene rubber plasticates 2～5min the most on a mill until, then three is jointly put in mill mixing, treats that three is mixing uniformly
And after bag roller, adjusting roller spacing is 2～3mm, it is sequentially added into the furnace black of 5～30 weight portions, 5～10 cycloalkyl of weight portion
Oil, 2～6 grafting maleic anhydride with ethylene propylene terpolymer, 50～70 magnesium hydroxide, 10～20 weight portions of weight portion of weight portion
Active calcium silicate, 2～4 age resistor of weight portion, mixing 10～20min, to uniformly, open cooling water simultaneously and make roller temperature control exist
40～60 DEG C, obtain mixed material；
In described mixed material, be sequentially added into the zinc oxide of 1～3 weight portions, 2～5 stearic acid of weight portion, mixing 3～
6min, controlling roller temperature is 40～60 DEG C, obtains elastomeric compound；
In described elastomeric compound, add the sulfur of 0.5～3 weight portions, 0.5～3 accelerator of weight portion, mixing 0.5～
1.5min, thin catharsis sheet, after room temperature cooling places 22～26h, vulcanizing press molds sulfidization molding, obtains EPDM
Rubber insulation material.
The preparation method of ethylene propylene diene rubber insulant the most according to claim 5, it is characterised in that described ternary second
The Mooney viscosity ML (1+4) 100 DEG C of the third rubber is 40～60, and ethylene contents is 45～50%, and molecular weight is 5000～8000.
The preparation method of ethylene propylene diene rubber insulant the most according to claim 5, it is characterised in that described age resistor
For at least one in anti-aging agent RD, antioxidant MB, antioxidant A W.
The preparation method of ethylene propylene diene rubber insulant the most according to claim 5, it is characterised in that accelerator is for promoting
Enter at least one in agent M and Vulcanization accelerator TMTD.
The preparation method of ethylene propylene diene rubber insulant the most according to claim 5, it is characterised in that described flat board sulfur
The condition of change machine compression molding is: curing temperature is 155～160 DEG C, pressure 4～8MPa.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107353512A (en) * | 2017-08-14 | 2017-11-17 | 浙江久运汽车零部件有限公司 | A kind of thermostat bypasses sebific duct EPDM |
| CN107759909A (en) * | 2017-12-15 | 2018-03-06 | 阜阳市利普化工有限公司 | A kind of formula of ethylene propylene terpolymer with of resistance to fuel oil |
| CN115612191A (en) * | 2022-10-17 | 2023-01-17 | 太原理工大学 | High-temperature-resistant anti-aging flame-retardant rubber material, adhesive, high-temperature-resistant high-bonding flame-retardant rubber conveyor belt and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107353512A (en) * | 2017-08-14 | 2017-11-17 | 浙江久运汽车零部件有限公司 | A kind of thermostat bypasses sebific duct EPDM |
| CN107759909A (en) * | 2017-12-15 | 2018-03-06 | 阜阳市利普化工有限公司 | A kind of formula of ethylene propylene terpolymer with of resistance to fuel oil |
| CN115612191A (en) * | 2022-10-17 | 2023-01-17 | 太原理工大学 | High-temperature-resistant anti-aging flame-retardant rubber material, adhesive, high-temperature-resistant high-bonding flame-retardant rubber conveyor belt and preparation method thereof |
| CN115612191B (en) * | 2022-10-17 | 2023-08-22 | 太原理工大学 | High-temperature-resistant aging-resistant flame-retardant rubber material, rubberizing, high-temperature-resistant high-adhesion-resistant flame-retardant rubber conveyer belt and preparation method thereof |
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Application publication date: 20161109 |