CN108485048A - A kind of cable cover(ing) sizing material and preparation method thereof - Google Patents
A kind of cable cover(ing) sizing material and preparation method thereof Download PDFInfo
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- CN108485048A CN108485048A CN201810258834.0A CN201810258834A CN108485048A CN 108485048 A CN108485048 A CN 108485048A CN 201810258834 A CN201810258834 A CN 201810258834A CN 108485048 A CN108485048 A CN 108485048A
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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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
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of cable cover(ing) sizing materials and preparation method thereof.The raw material proportioning of the sheath sizing material presses the calculation of following parts by weight：85~100 parts of ethylene vinyl acetate graphene rubber master batch, 5~20 parts of nitrile rubber, 5~10 parts of maleic anhydride grafted ethene vinyl acetate co-polymer, 5~10 parts of low temperature modification agent, 5~10 parts of low temperature plasticizer, 40~80 parts of phosphor nitrogen combustion inhibitor, 15~30 parts of reinforcing agent, 1~2 part of anti-aging agent, 3~5 parts of vulcanizing system auxiliary agent.The sheath sizing material of the present invention has Halogen, low cigarette, fire-retardant, fuel oil resistance, resistance to mineral oil, low temperature resistant（Temperature resistant range is 40 DEG C~90 DEG C）With the characteristics such as high-mechanical property, it can effectively be satisfied with the working condition requirement of locomotive cable.
Description
Invention field
The present invention relates to cable material, the preparation method of specifically a kind of cable cover(ing) sizing material and the sheath sizing material.This
The sheath sizing material of invention have Halogen, low cigarette, fire-retardant, fuel oil resistance, resistance to mineral oil, it is low temperature resistant (temperature resistant range be -40 DEG C~90
DEG C), the characteristics such as high-mechanical property, can effectively be satisfied with the working condition requirement of locomotive cable.
Background technology
Locomotive is placed with numerous electrical equipments thereon as " locomotive engine " in rail traffic vehicles, these electrically set
Electrical connection between standby be unable to do without conductive cable.The operating condition of locomotive is chronically at that greasy dirt amount is big, temperature change is big
In harsh environment, thus, it is desirable that it is (including resistance to that the coat layer of power cable being served on locomotive should have Halogen, low cigarette, fire-retardant, oil resistant
Fuel oil and resistance to mineral oil), the characteristics such as low temperature resistant, high-mechanical property.
Halogen, low cigarette, fire-retardant cable jacket material are the trends of the times of CABLE MATERIALS development.Existing common Halogen, low cigarette,
Flame-proof cable sheath material, typically using the polyolefin elastomers such as ethylene vinyl acetate copolymer and polyethylene material as base
Material is aided with what the hydroxide of the metals such as a large amount of magnaliums was realized as halogen-free flame retardants, with good flame retardancy and smoke suppression effect.
However, ethylene octane copolymer is the high molecular polymer of nonpolarity or low pole, oil resistance is poor, is generally only capable of reaching
The effect of resistance to mineral oil；Still more, after the hydroxide such as a large amount of magnaliums are added in ethylene octane copolymer, resistance to low temperature
Also it can be deteriorated, it usually only can be by -25 DEG C of cryogenic tensile test requirements document.Therefore, existing common Halogen, low cigarette, fire-retardant
Cable jacket material is the working condition requirement that cannot be satisfied in locomotive cable.
In order to enable cable jacket material to reach preferable oil resistance, in recent years, VA (vinyl acetates are usually selected in the industry
Ester) the higher ethylene vinyl acetate rubber of content as Halogen, the base-material of low cigarette, thermal resistance cable jacket material because containing VA compared with
High ethylene vinyl acetate rubber has good material polarity, oil resistance excellent.However, ethylene vinyl acetate rubber
Mooney viscosity it is relatively low, the mechanical performance of material is poor, and the mechanical performance using it as the cable jacket material of base-material cannot be effective
Ground adapts to the military service working condition requirement of locomotive cable.In addition, for the purposes of making ethylene vinyl acetate rubber as the cable of base-material
Protective cover material can obtain preferable flame retardant property, and common practice in the industry is a large amount of magnesium aluminum hydroxide of addition and part boric acid
Zinc, such as " a kind of soft type oil resistant low temperature resistant Halogen thermal resistance CABLE MATERIALS used for rolling stock and its system disclosed in Chinese patent literature
Preparation Method " (publication number CN 106543546, publication date on March 29th, 2017), " 125 DEG C of locomotive cable cross-linking radiations are resistance to low
Gentle soft oil resistant non-halogen flame-retardant cable " (publication number CN 106009447, publication date on October 12nd, 2016) etc., it is a large amount of to be added
These additive flame retardants can be such that the mechanical performance of material further decreases, and can also resistance to low temperature be made to be deteriorated.It is described before comprehensive,
Although the existing cable jacket material using ethylene vinyl acetate rubber as base-material has excellent oil resistance, it exists
Resistance to low temperature difference and the low technical problem of mechanical performance are still difficult the working condition requirement for being effectively satisfied with locomotive cable.
Invention content
The technical purpose of the present invention is：Working condition requirement and existing cable protective cover material technology for above-mentioned locomotive cable
Deficiency provides one kind and both having had the characteristics such as Halogen, low cigarette, fire-retardant, fuel oil resistance, resistance to mineral oil, but also with low temperature resistant (heatproof model
Enclose is -40 DEG C~90 DEG C), the cable cover(ing) sizing material of characteristics and the preparation method of the cable cover(ing) sizing material such as high-mechanical property.
The present invention realizes its technical purpose the technical scheme adopted is that a kind of cable cover(ing) sizing material, the sheath sizing material
Raw material proportioning press following parts by weight calculation：
Preferably, the raw material proportioning of the ethylene vinyl acetate-graphene rubber master batch presses the group of following parts by weight
Divide and calculates：
The VA contents of the ethylene vinyl acetate rubber are 65%.
Preferably, the maleic anhydride grafted ethene vinyl acetate co-polymer is Du Pont C250.
Preferably, the sheath sizing material is the sheath material of locomotive cable.
A kind of preparation method of above-mentioned cable cover(ing) sizing material, the preparation method include the following steps：
Step 1. prepares ethylene vinyl acetate-graphene rubber master batch；
Step 2. is by ethylene vinyl acetate-graphene rubber master batch and nitrile rubber, maleic anhydride grafted ethene vinyl acetate
Ester copolymer, low temperature modification agent, low temperature plasticizer, phosphor nitrogen combustion inhibitor, reinforcing agent and anti-aging agent put into mixer and carry out jointly
It is kneaded；
Sizing material obtained by mixer mixing is gone on open mill and makees further to be kneaded；
The glue stuff compounding being kneaded is filtered by step 3. on filter；
The sizing material that step 4. will filter out slice on calender is parked at least 24 hours after cooling；
The sizing material parked is added in mixer and is kneaded by step 5.；
Step 6. goes to the glue stuff compounding in step 5 in open mill, and vulcanizing system auxiliary agent is added, is mixed by open mill
Conjunction is handled；
Open mill in step 6 is mixed gained sizing material slice on calender by step 7., and cooling obtains the sheath of finished product
Sizing material.
Preferably, the preparation method of the ethylene vinyl acetate-graphene rubber master batch specifically comprises the following steps：
1. Graphene powder is dispersed in low temperature plasticizer step by, and the ultrasonic disperse instrument that power is 1500 watts is used in combination to carry out
40~60min of ultrasonic disperse obtains graphene plasticizer paste；
2. mixer is preheating to 120 DEG C to step by；
Ethylene vinyl acetate rubber, graphene dispersion aids and graphene plasticizer paste are added in mixer；
The rotating speed for adjusting mixer is 60 turns/min, and carrying out high speed shear to the material in mixer disperses at least 15 points
Clock obtains ethylene vinyl acetate-graphene rubber master batch.
The method have the benefit that：
1. the base-material in the cable cover(ing) sizing compound formula of the present invention is to include the graphene of ethylene vinyl acetate rubber
Based on rubber master batch, and it is aided with nitrile rubber；Wherein, ethylene vinyl acetate-graphene rubber master batch is with a small amount of Graphene powder and second
Alkene vinyl acetate rubber is blended through fusion intercalation, and Graphene powder is enable excellently to be scattered in ethylene vinyl acetate rubber
On the strand of glue, the Mooney viscosity realization of rubber master batch is substantially improved, so as to improve the processability of ethylene vinyl acetate rubber
Can and it significantly improve the mechanical property of materials；And nitrile rubber then can effectively promote the oil resistance and mechanicalness of mixture
Energy；On the basis of aforementioned base-material, by adding low temperature resistant plasticizer and producing high-molecular in sheath sizing compound formula of the invention
The low temperature modification agent for closing object, to further enhance resistance to low temperature, it is -40 DEG C~90 DEG C to make its temperature resistant range；The present invention
Sheath sizing compound formula in fire retardant to select the phosphor nitrogen combustion inhibitor that has excellent performance, molecular structure be caged, collection acid source, carbon source
Gentle to reach flame retardant effect by expansion, at carbon, heat-insulated mechanism derived from one, which can be reached with lower addition
To preferable flame retardant property, so as to reduce the addition of fire retardant, to reduce fire retardant to the unfavorable of the mechanical property of materials
It influences；The formula gel content of the sheath sizing material of the present invention can be effectively improved, and then reduce filler and reinforcing agent to material
Expect the influence of resistance to low temperature.Described before comprehensive, each component of the invention mutually cooperate with, compatibility, prepare obtained by sheath sizing material have
Halogen, low cigarette, fire-retardant, fuel oil resistance, resistance to mineral oil, low temperature resistant (temperature resistant range be -40 DEG C~90 DEG C) and high-mechanical property etc.
Characteristic；
2. the preparation method of the present invention is designed for the sheath sizing compound formula of the present invention, first through ethylene-vinyl acetate
The preparation of ester-graphene rubber master batch, and Graphene powder is made to be scattered in the ethylene-vinyl acetate of high-temperature fusion under high speed shear effect
On the strand of ester rubber, to which the realization of the Mooney viscosity of rubber master batch to be substantially improved, improve adding for ethylene vinyl acetate rubber
Work performance simultaneously significantly improves the mechanical property of materials；Again by ethylene vinyl acetate-graphene rubber master batch and each component by multiple
Be kneaded and the finished product that arrives, to be made have Halogen, low cigarette, fire-retardant, fuel oil resistance, resistance to mineral oil, it is low temperature resistant (temperature resistant range be-
40 DEG C~90 DEG C) and the characteristics such as high-mechanical property sheath sizing material；Gained sheath sizing material is tested through national cable research institute, is obtained
Main performance is as follows：Tensile strength >=10MPa, elongation at break >=150%, 120 DEG C × 168h hot air agings coefficient (≤±
30% ,≤± 30%), aging coefficients (≤± 30% ,≤± 40%) of the 100 DEG C × 72h in 902# oily (mineral oil), 70 DEG C
Aging coefficients (≤± 30% ,≤± 30%) of × 168h in 903# oily (fuel oil), the cryogenic tensile at -40 DEG C is >=
30%, oxygen index (OI) is more than 32；As it can be seen that the present invention sheath sizing material while having excellent Halogen, low cigarette, flame-retarding characteristic,
Also there is excellent low temperature resistant, oil resistance and high-mechanical property, can effectively be satisfied with the working condition requirement of locomotive cable, when
So, it is readily applicable to the cable of other similar devices.
Specific implementation mode
The present invention relates to cable material, the preparation method of specifically a kind of cable cover(ing) sizing material and the sheath sizing material, this
The sheath sizing material of invention is especially suitable as the sheath material of locomotive cable, certainly also can be suitable for as similar locomotive cable clothes
Use as a servant the sheath material of the miscellaneous equipment cable of operating mode.Now in a manner of list by multiple embodiments to cable cover(ing) glue of the present invention
The formula of material carries out detailed, specific description, and preparation method of the invention is then with cable protection in individual embodiment corresponding lists
The formulation Example for covering sizing material carries out detailed, specific description.
The content of embodiment 1 to 8 is shown in Table 1.
The raw material proportioning of 1 cable cover(ing) sizing material of the present invention of table presses the calculation of following parts by weight
In table 1 above, ethylene vinyl acetate-graphene rubber master batch is mainly by ethylene vinyl acetate rubber, graphite
Alkene powder, graphene dispersion aids, low temperature plasticizer are formulated, each embodiment of corresponding above-mentioned table 1, ethylene vinyl acetate-
The raw material proportioning ginseng of graphene rubber master batch is shown in Table 2.
In table 1 above, the preferred Du Pont C250 of maleic anhydride grafted ethene vinyl acetate co-polymer.
The raw material proportioning of ethylene vinyl acetate-graphene rubber master batch of each embodiment presses the group of following parts by weight in 2 table 1 of table
Divide and calculates
In above-mentioned table 2, the VA contents of ethylene vinyl acetate rubber are 65%.
Embodiment 9
The preparation method of cable cover(ing) sizing material, includes the following steps described in a kind of above-described embodiment 1：
Step 1. prepares ethylene vinyl acetate-graphene rubber master batch；
The preparation method of the ethylene vinyl acetate-graphene rubber master batch specifically comprises the following steps：
1. Graphene powder is dispersed in low temperature plasticizer step by, and the ultrasonic disperse instrument that power is 1500 watts is used in combination to carry out
Ultrasonic disperse 45min obtains graphene plasticizer paste；
2. mixer is preheating to 120 DEG C to step by；
Ethylene vinyl acetate rubber, graphene dispersion aids and graphene plasticizer paste are added in mixer；
The rotating speed for adjusting mixer is 60 turns/min, and carrying out high speed shear to the material in mixer disperses 15 minutes, obtains
Ethylene vinyl acetate-graphene rubber master batch；
Step 2. is by ethylene vinyl acetate-graphene rubber master batch and nitrile rubber, maleic anhydride grafted ethene vinyl acetate
Ester copolymer, low temperature modification agent, low temperature plasticizer, phosphor nitrogen combustion inhibitor, reinforcing agent and anti-aging agent put into mixer and carry out jointly
It is kneaded；
Sizing material obtained by mixer mixing is gone on open mill and makees further to be kneaded；
The glue stuff compounding being kneaded is filtered by step 3. on filter；
The sizing material that step 4. will filter out slice on calender is parked 24 hours after cooling；
The sizing material parked is added in mixer and is kneaded by step 5.；
Step 6. goes to the glue stuff compounding in step 5 in open mill, and vulcanizing system auxiliary agent is added, is mixed by open mill
Conjunction is handled；
Open mill in step 6 is mixed gained sizing material slice on calender by step 7., and cooling obtains the sheath of finished product
Sizing material.
Sheath sizing material obtained by the present embodiment is tested through national electric wire Quality Supervision and Inspection Center, obtains following table institute
The main performance of row：
Step 1. prepares ethylene vinyl acetate-graphene rubber master batch；
The preparation method of the ethylene vinyl acetate-graphene rubber master batch specifically comprises the following steps：
1. Graphene powder is dispersed in low temperature plasticizer step by, and the ultrasonic disperse instrument that power is 1500 watts is used in combination to carry out
Ultrasonic disperse 50min obtains graphene plasticizer paste；
2. mixer is preheating to 120 DEG C to step by；
Ethylene vinyl acetate rubber, graphene dispersion aids and graphene plasticizer paste are added in mixer；
The rotating speed for adjusting mixer is 60 turns/min, and carrying out high speed shear to the material in mixer disperses 20 minutes, obtains
Ethylene vinyl acetate-graphene rubber master batch；
Step 2. is by ethylene vinyl acetate-graphene rubber master batch and nitrile rubber, maleic anhydride grafted ethene vinyl acetate
Ester copolymer, low temperature modification agent, low temperature plasticizer, phosphor nitrogen combustion inhibitor, reinforcing agent and anti-aging agent put into mixer and carry out jointly
It is kneaded；
Sizing material obtained by mixer mixing is gone on open mill and makees further to be kneaded；
The glue stuff compounding being kneaded is filtered by step 3. on filter；
The sizing material that step 4. will filter out slice on calender is parked 24 hours after cooling；
The sizing material parked is added in mixer and is kneaded by step 5.；
Step 6. goes to the glue stuff compounding in step 5 in open mill, and vulcanizing system auxiliary agent is added, is mixed by open mill
Conjunction is handled；
Open mill in step 6 is mixed gained sizing material slice on calender by step 7., and cooling obtains the sheath of finished product
Sizing material.
Embodiment 11
The preparation method of cable cover(ing) sizing material, includes the following steps described in a kind of above-described embodiment 6：
Step 1. prepares ethylene vinyl acetate-graphene rubber master batch；
The preparation method of the ethylene vinyl acetate-graphene rubber master batch specifically comprises the following steps：
1. Graphene powder is dispersed in low temperature plasticizer step by, and the ultrasonic disperse instrument that power is 1500 watts is used in combination to carry out
Ultrasonic disperse 60min obtains graphene plasticizer paste；2. mixer is preheating to 120 DEG C to step by；
Ethylene vinyl acetate rubber, graphene dispersion aids and graphene plasticizer paste are added in mixer；
The rotating speed for adjusting mixer is 60 turns/min, and carrying out high speed shear to the material in mixer disperses 15 minutes, obtains
Ethylene vinyl acetate-graphene rubber master batch；
Step 2. is by ethylene vinyl acetate-graphene rubber master batch and nitrile rubber, maleic anhydride grafted ethene vinyl acetate
Ester copolymer, low temperature modification agent, low temperature plasticizer, phosphor nitrogen combustion inhibitor, reinforcing agent and anti-aging agent put into mixer and carry out jointly
It is kneaded；
Sizing material obtained by mixer mixing is gone on open mill and makees further to be kneaded；
The glue stuff compounding being kneaded is filtered by step 3. on filter；
The sizing material that step 4. will filter out slice on calender is parked 24 hours after cooling；
The sizing material parked is added in mixer and is kneaded by step 5.；
Step 6. goes to the glue stuff compounding in step 5 in open mill, and vulcanizing system auxiliary agent is added, is mixed by open mill
Conjunction is handled；
Open mill in step 6 is mixed gained sizing material slice on calender by step 7., and cooling obtains the sheath of finished product
Sizing material.
Embodiment 12
The preparation method of cable cover(ing) sizing material, includes the following steps described in a kind of above-described embodiment 8：
Step 1. prepares ethylene vinyl acetate-graphene rubber master batch；
The preparation method of the ethylene vinyl acetate-graphene rubber master batch specifically comprises the following steps：
1. Graphene powder is dispersed in low temperature plasticizer step by, and the ultrasonic disperse instrument that power is 1500 watts is used in combination to carry out
Ultrasonic disperse 40min obtains graphene plasticizer paste；
2. mixer is preheating to 120 DEG C to step by；
Ethylene vinyl acetate rubber, graphene dispersion aids and graphene plasticizer paste are added in mixer；
The rotating speed for adjusting mixer is 60 turns/min, and carrying out high speed shear to the material in mixer disperses 20 minutes, obtains
Ethylene vinyl acetate-graphene rubber master batch；
Step 2. is by ethylene vinyl acetate-graphene rubber master batch and nitrile rubber, maleic anhydride grafted ethene vinyl acetate
Ester copolymer, low temperature modification agent, low temperature plasticizer, phosphor nitrogen combustion inhibitor, reinforcing agent and anti-aging agent put into mixer and carry out jointly
It is kneaded；
Sizing material obtained by mixer mixing is gone on open mill and makees further to be kneaded；
The glue stuff compounding being kneaded is filtered by step 3. on filter；
The sizing material that step 4. will filter out slice on calender is parked 24 hours after cooling；
The sizing material parked is added in mixer and is kneaded by step 5.；
Step 6. goes to the glue stuff compounding in step 5 in open mill, and vulcanizing system auxiliary agent is added, is mixed by open mill
Conjunction is handled；
Open mill in step 6 is mixed gained sizing material slice on calender by step 7., and cooling obtains the sheath of finished product
Sizing material.
The above various embodiments is only to illustrate the present invention, rather than its limitations；Although with reference to the various embodiments described above to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：The present invention still can be to the various embodiments described above
In specific technical solution modify either equivalent replacement of some of the technical features and these modifications or replace
It changes, the spirit and scope of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of cable cover(ing) sizing material, which is characterized in that the raw material proportioning of the sheath sizing material is based on the component of following parts by weight
It calculates：
Ethylene vinyl acetate -85~100 parts of graphene rubber master batch,
5~20 parts of nitrile rubber,
5~10 parts of maleic anhydride grafted ethene vinyl acetate co-polymer,
5~10 parts of low temperature modification agent,
5~10 parts of low temperature plasticizer,
40~80 parts of phosphor nitrogen combustion inhibitor,
15~30 parts of reinforcing agent,
1~2 part of anti-aging agent,
3~5 parts of vulcanizing system auxiliary agent.
2. cable cover(ing) sizing material according to claim 1, which is characterized in that the ethylene vinyl acetate-graphene rubber master batch
Raw material proportioning press following parts by weight calculation：
100 parts of ethylene vinyl acetate rubber,
0.5~5 part of Graphene powder,
0.1~0.3 part of graphene dispersion aids,
5~10 parts of low temperature plasticizer；
The VA contents of the ethylene vinyl acetate rubber are 65%.
3. cable cover(ing) sizing material according to claim 1, which is characterized in that the maleic anhydride grafted ethene vinylacetate
Copolymer is Du Pont C250.
4. cable cover(ing) sizing material according to claim 1, which is characterized in that the sheath sizing material is the sheath of locomotive cable
Material.
5. the preparation method of cable cover(ing) sizing material described in a kind of claim 1, which is characterized in that the preparation method includes following
Step：
Step 1. prepares ethylene vinyl acetate-graphene rubber master batch；
Ethylene vinyl acetate-graphene rubber master batch and nitrile rubber, maleic anhydride grafted ethene vinylacetate are total to by step 2.
Polymers, low temperature modification agent, low temperature plasticizer, phosphor nitrogen combustion inhibitor, reinforcing agent and anti-aging agent put into mixer and are kneaded jointly；
Sizing material obtained by mixer mixing is gone on open mill and makees further to be kneaded；
The glue stuff compounding being kneaded is filtered by step 3. on filter；
The sizing material that step 4. will filter out slice on calender is parked at least 24 hours after cooling；
The sizing material parked is added in mixer and is kneaded by step 5.；
Step 6. goes to the glue stuff compounding in step 5 in open mill, and vulcanizing system auxiliary agent is added, is mixed by open mill
Processing；
Open mill in step 6 is mixed gained sizing material slice on calender by step 7., and cooling obtains the sheath glue of finished product
Material.
6. the preparation method of cable cover(ing) sizing material according to claim 5, which is characterized in that the ethylene vinyl acetate-
The preparation method of graphene rubber master batch specifically comprises the following steps：
1. Graphene powder is dispersed in low temperature plasticizer step by, and the ultrasonic disperse instrument that power is 1500 watts is used in combination to carry out ultrasound
Disperse 40~60min, obtains graphene plasticizer paste；
2. mixer is preheating to 120 DEG C to step by；
Ethylene vinyl acetate rubber, graphene dispersion aids and graphene plasticizer paste are added in mixer；
The rotating speed for adjusting mixer is 60 turns/min, and carrying out high speed shear to the material in mixer disperses at least 15 minutes, obtains
Ethylene vinyl acetate-graphene rubber master batch.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370027A (en) * | 2018-09-18 | 2019-02-22 | 特变电工(德阳)电缆股份有限公司 | A kind of compound semi-conductive shielding material of graphene, preparation method and applications |
| CN114874606A (en) * | 2022-06-20 | 2022-08-09 | 特变电工(德阳)电缆股份有限公司 | Sheath rubber material for energy storage battery connecting cable and preparation method thereof |
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Application publication date: 20180904 |