CN107286664A - A kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method - Google Patents
A kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method Download PDFInfo
- Publication number
- CN107286664A CN107286664A CN201710616799.0A CN201710616799A CN107286664A CN 107286664 A CN107286664 A CN 107286664A CN 201710616799 A CN201710616799 A CN 201710616799A CN 107286664 A CN107286664 A CN 107286664A
- Authority
- CN
- China
- Prior art keywords
- silicone rubber
- electrically insulating
- parts
- semi
- conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
- H01B17/583—Grommets; Bushings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
-
- 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
- C08K2201/001—Conductive additives
-
- 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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Abstract
The present invention provides a kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method.Vitrified powder makes electrically insulating silicone rubber form hard ceramics protection under high temperature or baked wheaten cake state, plays a part of completely cutting off flame.Fire retardant makes the thermal decomposition initial temperature of electrically insulating silicone rubber more than 400 DEG C, and limited oxygen index can reach 0 grade of V more than 30%, UL94 flame retardant ratings.On the basis of electrically insulating silicone rubber raw material, the semi-conductive silicone rubber that the present invention is provided also includes conductive filler.By adding conductive filler, not only the characteristic with electrically insulating silicone rubber also has conductive characteristic to semi-conductive silicone rubber.Inner sandwich layer and the exterior skin layer for the cable head casing tube that the present invention is provided are prepared from by semi-conductive silicone rubber, and insulating barrier is prepared from by electrically insulating silicone rubber.The cable head casing tube that the present invention is provided has good heat endurance, anti-flammability and electric conductivity, insulating protection can be carried out to cable connector, to ensure the safe operation of power supply unit.
Description
Technical field
The present invention relates to silicon rubber technical field, more particularly to a kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable headgear
Pipe and preparation method.
Background technology
Power distribution station or transformer station are each equipped with the load centers such as residential quarters, large public building and factory and enterprise.
Power distribution station or transformer station can be that resident or enterprises and institutions provide suitable voltage, electric current.Power distribution station or the branch road of transformer station
In be each equipped with for the ring main unit from the outside distribution of main line.Ring main unit is that one kind is used as core using on-load switch and fuse
The air insulation of part or gas isolated High-Voltage Electrical Appliances unit equipment.Ring main unit have simple in construction, small volume, price it is low, can
The advantage of power supply parameter and performance etc. is improved, thus is widely used in residential quarters, large public building and factory and enterprise
Deng in the power distribution station of load center or transformer station.
There is substantial amounts of cable connector from the outside distribution of main line, ring main unit to realize, and then be easy to spread to different directions
If service cable.In 10-35kV high-voltage ring main unit, cable head casing tube of the outer cover provided with insulation of cable connector.Cable
Head casing tube can strengthen between high-pressure electrified conductor and high-pressure electrified conductor over the ground, to the insulating effect of cabinet shell.Meanwhile,
Cable head casing tube can also prevent high-pressure electrified conductor to be directly exposed in air, and then make up between ring main unit and ring main unit
The not enough shortcoming of distance to the ground.
Because the outside of cable connector is arranged end sleeve pipe, thus, when generation conductive cable contacts are bad, partial discharges fault
Or during the phenomenon such as over-heat inside, operation maintenance personnel can not be discovered within the very first time, and then cause failure further to deteriorate.Work as cable
When joint shelf depreciation or too high end inside pipe casing temperature, then the cable head casing tube of quality of rubber materials can be caused to burn, and then
Cause the major accident such as device damage or user's power failure.Therefore, the performance such as heat endurance and anti-flammability of cable head casing tube material
It is particularly important.At present, the material of cable head casing tube is generally quality of rubber materials.When constant temperature is too high residing for rubber, rubber holds
Easily soften, or even burn.It is then desired to the cable prepared by the rubber that a kind of heat endurance is good, fire resistance is good
Head casing tube carries out insulating protection to cable connector, to ensure the safe operation of power supply unit.
The content of the invention
The present invention provides a kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method, existing to solve
Cable head casing tube prepared by quality of rubber materials is easy when occurring the failures such as bad conductive cable contacts, partial discharges fault or over-heat inside
The problem of burning.
The raw material for the electrically insulating silicone rubber that the present invention is provided includes according to mass fraction：100 parts of raw-silastic continuously, modified hard charcoal
It is black 20-30 parts, 2-10 parts of constitution controller, 20-50 parts of glass dust, 5-30 parts of Vitrified powder, 10-40 parts of fire retardant, vulcanizing agent 1-2
Part.
Wherein, raw material based on raw-silastic continuously.In the electrically insulating silicone rubber that the present invention is provided, raw-silastic continuously is methyl
Silicon rubber or methyl vinyl silicone rubber.Modified white carbon black is reinforcing agent, it is possible to increase the quality of rubber.There is provided in the present invention
In electrically insulating silicone rubber, modified white carbon black is the fume colloidal silica or precipitated silica by coupling agent surface treatment.Coupling
Agent is preferably silane coupler or titanate coupling agent.Constitution controller is the preparation of control structure, and the purpose is to be elimination
The phenomenon of silicon rubber-white carbon architecture.In the electrically insulating silicone rubber that the present invention is provided, constitution controller is hydroxyl silicon
At least one of oil, diphenyl silanediol and HMDS.Glass dust chemical stability is good, with resistance to acids and bases,
Chemical inertness, low-expansion extra-weather-proof property.Glass dust is applied to that when preparing silicon rubber the wear-resisting, resistance to of rubber can be increased
Hardness.In the electrically insulating silicone rubber that the present invention is provided, glass dust is borosilicate glass powder, bismuth oxide glass powder and borate oxide
At least one of glass dust.Vitrified powder has the characteristic of high-melting-point, high degree of sintering, insulation and ceramic.Vitrified powder application
When silicon rubber is prepared, do not ftractureed after electrically insulating silicone rubber burning, the residue of burning is hard ceramic housing, and ceramic
Housing does not melt in the case where burning environment and not dripped, and then electrically insulating silicone rubber is reached the effect of protection.The present invention provide it is exhausted
In edge silicon rubber, Vitrified powder is laminar silicic acid filler salt.Laminar silicic acid filler salt is preferably mica, wollastonite, kaolin and illiteracy
At least one of de- soil.Fire retardant can make combustible polymers have the function of flame retardancy.The SOI provided in the present invention
In rubber, fire retardant is halogen-free flame retardants.Halogen-free flame retardants includes aluminium hydroxide, magnesium hydroxide, microcapsule red phosphorus and chloroplatinic acid
At least one of.Vulcanizing agent can reduce the heat of raw-silastic continuously, improve the bonding force of raw-silastic continuously.Carried in the present invention
In the electrically insulating silicone rubber of confession, vulcanizing agent is that (DCBP, the country is commonly called as " double 24 vulcanizations for peroxidating double (2,4- dichloro-benzoyls)
Agent "), 2,5- dimethyl -2,5- bis(t-butylperoxy) hexanes (DPPMH, the country is commonly called as " double 25 vulcanizing agents ") or peroxidating
Diisopropylbenzene (DIPB) (DCP).
Because Vitrified powder has the characteristic of high-melting-point, high degree of sintering, insulation and ceramic, thus prepared by Vitrified powder
Electrically insulating silicone rubber has higher fusing point.Do not ftractureed after electrically insulating silicone rubber burning, the residue of burning is hard ceramic shell
Body, and ceramic housing is not molten in the case where burning environment and do not drip, and then play isolation flame and fireproof effect.Due to fire-retardant
Agent can improve the ignition temperature of combustible polymers, thus have higher burning-point by electrically insulating silicone rubber prepared by fire retardant.Absolutely
The thermal decomposition initial temperature of edge silicon rubber is more than 400 DEG C, and limited oxygen index can reach V-0 more than 30%, UL94 flame retardant ratings
Level, thus, electrically insulating silicone rubber can not be lighted in atmosphere.
The present invention also provides a kind of semi-conductive silicone rubber, and the preparing raw material of the semi-conductive silicone rubber is prepared in electrically insulating silicone rubber
Conductive filler is also added on the basis of raw material.The addition of conductive filler causes semi-conductive silicone rubber not only to have electrically insulating silicone rubber
Characteristic but also the characteristic with conduction.In the semi-conductive silicone rubber that the present invention is provided, conductive filler includes acetylene carbon black, stone
At least one of black carbon black and conductive carbon fibre.
The present invention also provides the preparation method of electrically insulating silicone rubber, and this method includes：
S11：Raw-silastic continuously is plasticated 5-10min.
Raw-silastic continuously is put into kneader the 5-10min that plasticates.Plasticating can make the macromolecular chain of raw-silastic continuously break
Split, reduce the molecular weight and viscosity of raw-silastic continuously, and then improve the plasticity and mobility of raw-silastic continuously.
S12：Modified white carbon black and constitution controller are added in the raw-silastic continuously after plasticating, at 50-80 DEG C
10-30min is kneaded, rubber master batch is formed.
Raw-silastic continuously is plasticated after end, the raw-silastic continuously mixing by modified white carbon black, constitution controller and after plasticating,
Temperature is fully mixing 10-30min under conditions of 50-80 DEG C in kneader, forms rubber master batch.
S13：Glass dust, Vitrified powder and fire retardant are added in the rubber master batch, 30-60min is kneaded at 50-80 DEG C.
Glass dust, Vitrified powder and fire retardant are added in rubber master batch, continue to knead under conditions of temperature is 50-80 DEG C
30-60min.50-80 DEG C of melting temperature can prevent the strand of rubber master batch to be broken, and the power of electrically insulating silicone rubber is improved indirectly
Learn performance.
S14：Mixing is warming up to 80-120 DEG C after terminating and vacuumized, and cools down.
After mixing terminates again, the temperature of kneader is increased to 80-120 DEG C, to reduce glass by way of heating
The viscosity of powder, Vitrified powder, fire retardant and the rubber master batch sizing material formed in mixing process, and then be easy to vacuumize.Temperature is increased to
After 80-120 DEG C, vacuumized under the conditions of vacuum is 0.1bar, to exclude the air being mingled with sizing material, improve the insulation of rubber
Property.Sizing material room temperature cooling treatment after vacuumizing.
S15：Vulcanizing agent is added after cooling, 5-10min is kneaded, obtains electrically insulating silicone rubber elastomeric compound.
Sizing material is cooled to after room temperature, sizing material and vulcanizing agent is mixed, and knead 5-10min on a mill.Mixing terminates
After obtain electrically insulating silicone rubber elastomeric compound.
S16：The electrically insulating silicone rubber elastomeric compound is parked to be vulcanized after 8-24h, obtains electrically insulating silicone rubber.
Electrically insulating silicone rubber elastomeric compound parks 8-24h at ambient temperature.Park after end, SOI is determined using vulcameter
The rubber mixed sulfurizing time in the case where temperature is 175 DEG C.Determine after sulfurizing time, electrically insulating silicone rubber elastomeric compound is in temperature
It is to be vulcanized under conditions of 2-5MPa for 175 DEG C, pressure, obtains electrically insulating silicone rubber.
The present invention also provides the preparation method of semi-conductive rubber, and this method includes：
S21：Raw-silastic continuously is plasticated 5-10min.
Raw-silastic continuously is put into kneader the 5-10min that plasticates.Plasticating can make the macromolecular chain of raw-silastic continuously break
Split, reduce the molecular weight and viscosity of raw-silastic continuously, and then improve the plasticity and mobility of raw-silastic continuously.
S22：Modified white carbon black and constitution controller are added in the raw-silastic continuously after plasticating, at 50-80 DEG C
10-30min is kneaded, rubber master batch is formed.
Raw-silastic continuously is plasticated after end, the raw-silastic continuously mixing by modified white carbon black, constitution controller and after plasticating,
10-30min is fully kneaded under conditions of temperature is 50-80 DEG C in kneader, rubber master batch is formed.
S23：Glass dust, Vitrified powder, fire retardant and conductive filler are added in the rubber master batch, 40- is kneaded at 50-80 DEG C
60min。
Glass dust, Vitrified powder, fire retardant and conductive filler are added in rubber master batch, continued in the bar that temperature is 50-80 DEG C
40-60min is kneaded under part.50-80 DEG C of melting temperature can prevent the strand of rubber master batch to be broken, and semiconductive is improved indirectly
The mechanical property of rubber.
S24：Mixing is warming up to 80-120 DEG C after terminating and vacuumized, and cools down.
After mixing terminates again, the temperature of kneader is increased to 80-120 DEG C, to reduce glass by way of heating
The viscosity of powder, Vitrified powder, fire retardant, conductive filler and the rubber master batch sizing material formed in mixing process, and then be easy to vacuumize.Temperature
Degree is increased to after 80-120 DEG C, is vacuumized under the conditions of vacuum is 0.1bar, to exclude the air being mingled with sizing material, is improved rubber
The insulating properties of glue.After vacuumizing, sizing material room temperature cooling treatment.
S25：Vulcanizing agent is added after cooling, 5-10min is kneaded, obtains semi-conductive rubber elastomeric compound.
Sizing material is cooled to after room temperature, sizing material and vulcanizing agent is mixed, and knead 5-10min on a mill.Mixing terminates
After obtain semi-conductive rubber elastomeric compound.
S26：The semi-conductive rubber elastomeric compound is parked to be vulcanized after 8-24h, obtains semi-conductive rubber.
Semi-conductive rubber elastomeric compound parks 8-24h at ambient temperature.Park after end, semiconductive is determined using vulcameter
The rubber mixed sulfurizing time in the case where temperature is 175 DEG C.Determine after sulfurizing time, semi-conductive rubber elastomeric compound is in temperature
It is to be vulcanized under conditions of 2-5MPa for 175 DEG C, pressure, obtains semi-conductive rubber.
The electrically insulating silicone rubber and semi-conductive silicone rubber that the present invention is provided are identical with usual silicone rubber, are respectively provided with good extrusion
Performance and moldability, thus the cable head casing tube that the present invention is provided can be prepared by conventional extrusion equipment and vulcanizing equipment,
Without adding equipment in addition, production cost is reduced.
The present invention also provides a kind of cable head casing tube, and the cable head casing tube is used to be set in cable connector, and then plays
Insulation protection is acted on.The cable head casing tube that the present invention is provided includes inner sandwich layer, insulating barrier and exterior skin layer from inside to outside.Its
In, inner sandwich layer and exterior skin layer are prepared from by semi-conductive silicone rubber material or according to the preparation method of semi-conductive silicone rubber, absolutely
Edge layer is prepared from by electrically insulating silicone rubber material or according to the preparation method of electrically insulating silicone rubber material.The inner sandwich layer of cable head casing tube
With exterior skin layer in the preparation, the semi-conductive silicone rubber elastomeric compound prepared after 8-24h is parked, using molding heat cure or
Injection moulding heat curing system is shaped to the profile of inner sandwich layer and exterior skin layer under the conditions of temperature is 175 DEG C.Likewise, end
The insulating barrier of sleeve pipe in the preparation, the electrically insulating silicone rubber elastomeric compound prepared after 8-24h is parked, using molding heat cure or
Injection moulding heat curing system is shaped to the profile of insulating barrier under the conditions of temperature is 175 DEG C.Inner sandwich layer, insulating barrier and exterior skin layer
Cable head casing tube is combined as by the form of pressing or hot pressing etc..The cable head casing tube that the present invention is provided is applied to ring main unit 10-
The insulation protection at 35kV cable connectors position.
The technical scheme that embodiments of the invention are provided can include the following benefits：
The present invention provides a kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method.The present invention is carried
The raw material of the electrically insulating silicone rubber of confession includes raw-silastic continuously, modified white carbon black, constitution controller, glass dust, Vitrified powder, fire retardant
And vulcanizing agent.By adding Vitrified powder, electrically insulating silicone rubber can form hard ceramics protection under high temperature or baked wheaten cake state, enter
And play isolation flame and fireproof effect.By adding fire retardant, the thermal decomposition initial temperature of electrically insulating silicone rubber is more than 400
DEG C, limited oxygen index can reach V-0 grades more than 30%, UL94 flame retardant ratings, and thus, electrically insulating silicone rubber in atmosphere can not point
Combustion.To sum up, the electrically insulating silicone rubber that the present invention is provided has preferable heat endurance and anti-flammability.In the base of electrically insulating silicone rubber raw material
On plinth, the semi-conductive silicone rubber that the present invention is provided also includes conductive filler.By adding conductive filler, semi-conductive silicone rubber is not only
Characteristic with electrically insulating silicone rubber also has conductive characteristic.
The cable head casing tube that the present invention is provided includes inner sandwich layer, insulating barrier and exterior skin layer from inside to outside, wherein, inner sandwich layer
It is prepared from exterior skin layer by semi-conductive silicone rubber, insulating barrier is prepared from by electrically insulating silicone rubber.Due to electrically insulating silicone rubber tool
Some heat endurance and anti-flammability and all heat endurances of semi-conductive silicone rubber, anti-flammability and electric conductivity, thus the present invention
The cable head casing tube of offer is provided simultaneously with heat endurance, anti-flammability and electric conductivity.The cable head casing tube that the present invention is provided can be right
Cable connector carries out insulating protection, to ensure the safe operation of power supply unit.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the present invention
Example, and for explaining principle of the invention together with specification.
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the preparation method of electrically insulating silicone rubber provided in an embodiment of the present invention；
Fig. 2 is the schematic flow sheet of the preparation method of semi-conductive silicone rubber provided in an embodiment of the present invention.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the present invention.
Accompanying drawing 1,2 is refer to, accompanying drawing 1,2 respectively illustrates electrically insulating silicone rubber provided in an embodiment of the present invention and semiconductive silicon
The schematic flow sheet of the preparation method of rubber.The description of following specific embodiments is based on accompanying drawing 1,2.
Embodiment 1
The embodiment of the present invention provides a kind of electrically insulating silicone rubber, and the raw material of the electrically insulating silicone rubber includes according to mass fraction：
100 parts of raw-silastic continuously, 20 parts of modified white carbon black, 8 parts of constitution controller, 40 parts of glass dust, 30 parts of Vitrified powder, resistance
Fire 40 parts of agent, 1.5 parts of vulcanizing agent.
The embodiment of the present invention provides a kind of preparation method of electrically insulating silicone rubber, and this method is specifically included：
S111：Methyl silicone rubber rubber is put into kneader the 5min that plasticates.
S112：Methyl silicone rubber rubber is plasticated after end, by silane coupler modified fume colloidal silica and hydroxyl silicon
Oil is added in the methyl silicone rubber rubber after plasticating, and temperature forms female to knead 15min under conditions of 60 DEG C in kneader
Glue；
S113：Borosilicate glass powder, mica, kaolin, aluminium hydroxide and microcapsule red phosphorus are added in rubber master batch, continued
Temperature be 60 DEG C under conditions of knead 40min.
S114：After mixing terminates again, the temperature of kneader is increased to 100 DEG C.Temperature is increased to after 100 DEG C, true
Reciprocal of duty cycle be 0.1bar under the conditions of vacuumize 30min.After vacuumizing, sizing material room temperature cooling treatment.
S115：Sizing material is cooled to after room temperature, sizing material and double 25 vulcanizing agents is mixed, and knead 5min on a mill.It is mixed
Refining obtains electrically insulating silicone rubber elastomeric compound after terminating.
S116：Electrically insulating silicone rubber elastomeric compound parks 24h at ambient temperature.End is parked, is determined and insulated using vulcameter
Sulfurizing time of the silicon rubber gross rubber in the case where temperature is 175 DEG C.Determine after sulfurizing time, electrically insulating silicone rubber elastomeric compound is in temperature
Degree is 175 DEG C, pressure is to be vulcanized under conditions of 5MPa, obtains electrically insulating silicone rubber.
After testing, the shore hardness of electrically insulating silicone rubber provided in an embodiment of the present invention is 55, and resistivity is 2.4 × 1014Ω,
It is 433 DEG C to thermally decompose initial temperature, and limited oxygen index is 35%.
The embodiment of the present invention provides a kind of semi-conductive silicone rubber, and the raw material of the semi-conductive silicone rubber is according to mass fraction bag
Include：
100 parts of raw-silastic continuously, 20 parts of modified white carbon black, 8 parts of constitution controller, 40 parts of glass dust, 30 parts of Vitrified powder, resistance
Fire 40 parts of agent, 1.5 parts of vulcanizing agent, 15 parts of conductive filler.
The embodiment of the present invention provides a kind of preparation method of semi-conductive silicone rubber, and this method is specifically included：
S121：Methyl silicone rubber rubber is put into kneader the 5min that plasticates.
S122：Methyl silicone rubber rubber is plasticated after end, by silane coupler modified fume colloidal silica and hydroxyl silicon
Oil is added in the methyl silicone rubber rubber after plasticating, and is kneaded 15min under conditions of temperature is 60 DEG C in kneader, is formed
Rubber master batch.
S123：Borosilicate glass powder, mica, kaolin, aluminium hydroxide, microcapsule red phosphorus and acetylene carbon black are added to rubber master batch
In, continue to knead 40min under conditions of temperature is 60 DEG C.
S124：After mixing terminates again, the temperature of kneader is increased to 100 DEG C.Temperature is increased to after 100 DEG C, true
Reciprocal of duty cycle be 0.1bar under the conditions of vacuumize 30min.After vacuumizing, sizing material room temperature cooling treatment.
S125：Sizing material is cooled to after room temperature, sizing material and double 25 vulcanizing agents is mixed, and knead 5min on a mill.It is mixed
Refining obtains semi-conductive rubber elastomeric compound after terminating.
S126：Semi-conductive rubber elastomeric compound parks 24h at ambient temperature.Park after end, half is determined using vulcameter
Sulfurizing time of the conductive rubber elastomeric compound in the case where temperature is 175 DEG C.Determine after sulfurizing time, semi-conductive rubber elastomeric compound exists
Temperature is 175 DEG C, pressure is to be vulcanized under conditions of 5MPa, obtains semi-conductive rubber.
After testing, semi-conductive rubber shore hardness provided in an embodiment of the present invention is 58, and resistivity is 7.8 × 103Ω, heat
It is 426 DEG C to decompose initial temperature, and limited oxygen index is 33%.
The embodiment of the present invention provides a kind of cable head casing tube, and cable head casing tube includes inner sandwich layer, insulating barrier from inside to outside
With exterior skin layer.Inner sandwich layer and exterior skin layer are made up of or according to this hair semi-conductive silicone rubber raw material provided in an embodiment of the present invention
The preparation method for the semi-conductive silicone rubber that bright embodiment is provided is prepared from, and insulating barrier is by SOI provided in an embodiment of the present invention
Rubber raw materials are constituted or are prepared from according to the preparation method of electrically insulating silicone rubber material provided in an embodiment of the present invention.Cable headgear
In the preparation, the semi-conductive silicone rubber elastomeric compound prepared is after 8-24h is parked, using mould for inner sandwich layer and the exterior skin layer of pipe
Pressure heat cure or injection moulding heat curing system are shaped to the profile of inner sandwich layer and exterior skin layer under the conditions of temperature is 175 DEG C.Together
Sample, in the preparation, the electrically insulating silicone rubber elastomeric compound prepared is used the insulating barrier of cable head casing tube after 8-24h is parked
Molding heat cure or injection moulding heat curing system are shaped to the profile of insulating barrier under the conditions of temperature is 175 DEG C.Inner sandwich layer, insulation
Layer and exterior skin layer are combined as cable head casing tube by the form of pressing or hot pressing etc..
Embodiment 2
The embodiment of the present invention provides a kind of electrically insulating silicone rubber, and the raw material of the electrically insulating silicone rubber includes according to mass fraction：
100 parts of raw-silastic continuously, 18 parts of modified white carbon black, 7 parts of constitution controller, 20 parts of glass dust, 5 parts of Vitrified powder, resistance
Fire 10 parts of agent, 1.5 parts of vulcanizing agent.
The embodiment of the present invention provides a kind of preparation method of electrically insulating silicone rubber, the preparation process be the same as Example 1 of this method.Its
In, modified white carbon black is silane coupler modified precipitated silica, and constitution controller is hydroxy silicon oil and the silicon of hexamethyl two
Azane, glass dust is bismuth oxide glass powder, and Vitrified powder is wollastonite, and fire retardant is magnesium hydroxide and chloroplatinic acid, and vulcanizing agent is double
25 vulcanizing agents.After testing, the shore hardness of electrically insulating silicone rubber provided in an embodiment of the present invention is 54, and resistivity is 2.1 × 1014
Ω, thermal decomposition initial temperature is 440 DEG C, and limited oxygen index is 35%.
The embodiment of the present invention provides a kind of semi-conductive silicone rubber, and the raw material of the semi-conductive silicone rubber is according to mass fraction bag
Include：
100 parts of raw-silastic continuously, 18 parts of modified white carbon black, 7 parts of constitution controller, 20 parts of glass dust, 5 parts of Vitrified powder, resistance
Fire 10 parts of agent, 1.5 parts of vulcanizing agent, 15 parts of conductive filler.
The embodiment of the present invention provides a kind of preparation method of semi-conductive silicone rubber, the preparation process be the same as Example 1 of this method.
Wherein, each raw material is identical with the raw material for preparing electrically insulating silicone rubber, is only addition conductive filler, and conductive filler is conductive carbon fibre
With the mixture of acetylene carbon black.After testing, the shore hardness of semi-conductive silicone rubber provided in an embodiment of the present invention is 56, resistivity
For 5.6 × 103Ω, thermal decomposition initial temperature is 432 DEG C, and limited oxygen index is 34%.
The embodiment of the present invention provides a kind of cable head casing tube, and cable head casing tube includes inner sandwich layer, insulating barrier from inside to outside
With exterior skin layer.The preparation method be the same as Example 1 of the cable head casing tube.
Embodiment 3
The embodiment of the present invention provides a kind of electrically insulating silicone rubber, and the raw material of the electrically insulating silicone rubber includes according to mass fraction：
100 parts of raw-silastic continuously, 30 parts of modified white carbon black, 10 parts of constitution controller, 50 parts of glass dust, 25 parts of Vitrified powder,
40 parts of fire retardant, 2 parts of vulcanizing agent.
The embodiment of the present invention provides a kind of preparation method of electrically insulating silicone rubber, and this method is specifically included：
S311：Methyl vinyl silicon kautschuk is put into kneader the 10min that plasticates.
S312：Methyl vinyl silicon kautschuk is plasticated after end, by the precipitated silica of titanate coupling agent modified
It is added to HMDS in the methyl vinyl silicon kautschuk after plasticating, temperature is 80 DEG C of bar in kneader
10min is kneaded under part, rubber master batch is formed；
S313：Borate oxide glasses powder, mica, montmorillonite, aluminium hydroxide and chloroplatinic acid are added in rubber master batch, after
Continue and knead 60min under conditions of temperature is 80 DEG C.
S314：After mixing terminates again, the temperature of kneader is increased to 120 DEG C.Temperature is increased to after 120 DEG C, true
Reciprocal of duty cycle be 0.1bar under the conditions of vacuumize 30min.After vacuumizing, sizing material room temperature cooling treatment.
S315：Sizing material is cooled to after room temperature, and sizing material and cumyl peroxide are mixed, and kneads on a mill
10min.Mixing obtains electrically insulating silicone rubber elastomeric compound after terminating.
S316：Electrically insulating silicone rubber elastomeric compound parks 8h at ambient temperature.End is parked, SOI is determined using vulcameter
The rubber mixed sulfurizing time in the case where temperature is 175 DEG C.Determine after sulfurizing time, electrically insulating silicone rubber elastomeric compound is in temperature
It is to be vulcanized under conditions of 2MPa for 175 DEG C, pressure, obtains electrically insulating silicone rubber.
After testing, the shore hardness of electrically insulating silicone rubber provided in an embodiment of the present invention is 57, and resistivity is 2.0 × 1014Ω,
It is 431 DEG C to thermally decompose initial temperature, and limited oxygen index is 34.7%.
The embodiment of the present invention provides a kind of semi-conductive silicone rubber, and the raw material of the semi-conductive silicone rubber is according to mass fraction bag
Include：
100 parts of raw-silastic continuously, 30 parts of modified white carbon black, 10 parts of constitution controller, 50 parts of glass dust, 25 parts of Vitrified powder,
40 parts of fire retardant, 2 parts of vulcanizing agent, 10 parts of conductive filler.
The embodiment of the present invention provides a kind of preparation method of semi-conductive silicone rubber, and this method is specifically included：
S321：Methyl vinyl silicon kautschuk is put into kneader the 10min that plasticates.
S322：Methyl vinyl silicon kautschuk is plasticated after end, by the precipitated silica of titanate coupling agent modified
It is added to HMDS in the methyl vinyl silicon kautschuk after plasticating, in temperature is 80 DEG C in kneader
Under the conditions of knead 10min, form rubber master batch.
S323：By borate oxide glasses powder, mica, montmorillonite, aluminium hydroxide, chloroplatinic acid, conductive carbon fibres peacekeeping second
Alkynes carbon black is added in rubber master batch, continues to knead 60min under conditions of temperature is 80 DEG C.
S324：After mixing terminates again, the temperature of kneader is increased to 120 DEG C.Temperature is increased to after 120 DEG C, true
Reciprocal of duty cycle be 0.1bar under the conditions of vacuumize 30min.After vacuumizing, sizing material room temperature cooling treatment.
S325：Sizing material is cooled to after room temperature, and sizing material and cumyl peroxide are mixed, and kneads on a mill
10min.Mixing obtains semi-conductive rubber elastomeric compound after terminating.
S326：Semi-conductive rubber elastomeric compound parks 8h at ambient temperature.Park after end, determined and partly led using vulcameter
The rubber mixed sulfurizing time in the case where temperature is 175 DEG C of electricity.Determine after sulfurizing time, semi-conductive rubber elastomeric compound is in temperature
Degree is 175 DEG C, pressure is to be vulcanized under conditions of 2MPa, obtains semi-conductive rubber.
After testing, semi-conductive rubber shore hardness provided in an embodiment of the present invention is 60, and resistivity is 6.9 × 103Ω, heat
It is 423 DEG C to decompose initial temperature, and limited oxygen index is 32.8%.
The embodiment of the present invention provides a kind of cable head casing tube, and cable head casing tube includes inner sandwich layer, insulating barrier from inside to outside
With exterior skin layer.The preparation method be the same as Example 1 of the cable head casing tube.
Embodiment 4
The embodiment of the present invention provides a kind of electrically insulating silicone rubber, and the raw material of the electrically insulating silicone rubber includes according to mass fraction：
100 parts of raw-silastic continuously, 20 parts of modified white carbon black, 8 parts of constitution controller, 40 parts of glass dust, 30 parts of Vitrified powder, resistance
Fire 40 parts of agent, 1.5 parts of vulcanizing agent.
The embodiment of the present invention provides a kind of preparation method of electrically insulating silicone rubber, the preparation process be the same as Example 1 of this method.Its
In, modified white carbon black is the precipitated silica of titanate coupling agent modified, and constitution controller is diphenyl silanediol, glass dust
For borosilicate glass powder and the mixture of bismuth oxide glass powder, Vitrified powder is mica and kaolinic mixture, and fire retardant is hydrogen-oxygen
Change the mixture of aluminium and microcapsule red phosphorus, vulcanizing agent is double 24 vulcanizing agents.After testing, SOI rubber provided in an embodiment of the present invention
The shore hardness of glue is 56, and resistivity is 3.0 × 1014Ω, thermal decomposition initial temperature is 440 DEG C, and limited oxygen index is 35.8%.
The embodiment of the present invention provides a kind of semi-conductive silicone rubber, and the raw material of the semi-conductive silicone rubber is according to mass fraction bag
Include：
100 parts of raw-silastic continuously, 20 parts of modified white carbon black, 8 parts of constitution controller, 40 parts of glass dust, 30 parts of Vitrified powder, resistance
Fire 40 parts of agent, 1.5 parts of vulcanizing agent, 15 parts of conductive filler.
The embodiment of the present invention provides a kind of preparation method of semi-conductive silicone rubber, the preparation process be the same as Example 1 of this method.
Wherein, each raw material is identical with the raw material for preparing electrically insulating silicone rubber, is only addition conductive filler, and conductive filler is conductive carbon fibre
With the mixture of graphitic carbon black.After testing, the shore hardness of semi-conductive silicone rubber provided in an embodiment of the present invention is 59, resistivity
For 5.7 × 103Ω, thermal decomposition initial temperature is 432 DEG C, and limited oxygen index is 33.6%.
The embodiment of the present invention provides a kind of cable head casing tube, and cable head casing tube includes inner sandwich layer, insulating barrier from inside to outside
With exterior skin layer.The preparation method be the same as Example 1 of the cable head casing tube.
Embodiment 5
The embodiment of the present invention provides a kind of electrically insulating silicone rubber, and the raw material of the electrically insulating silicone rubber includes according to mass fraction：
100 parts of raw-silastic continuously, 25 parts of modified white carbon black, 2 parts of constitution controller, 35 parts of glass dust, 28 parts of Vitrified powder, resistance
Fire 30 parts of agent, 1 part of vulcanizing agent.
The embodiment of the present invention provides a kind of preparation method of electrically insulating silicone rubber, and this method is specifically included：
S511：Methyl vinyl silicon kautschuk is put into kneader the 5min that plasticates.
S512：Methyl vinyl silicon kautschuk is plasticated after end, by the fume colloidal silica of titanate coupling agent modified
It is added to hydroxy silicon oil in the methyl vinyl silicon kautschuk after plasticating, temperature is mixed under conditions of 50 DEG C in kneader
30min is refined, rubber master batch is formed；
S513：Borate oxide glasses powder, mica, montmorillonite, aluminium hydroxide and chloroplatinic acid are added in rubber master batch, after
Continue and knead 30min under conditions of temperature is 50 DEG C.
S514：After mixing terminates again, the temperature of kneader is increased to 80 DEG C.Temperature is increased to after 80 DEG C, in vacuum
Spend to vacuumize 30min under the conditions of 0.1bar.After vacuumizing, sizing material room temperature cooling treatment.
S515：Sizing material is cooled to after room temperature, sizing material and double 24 vulcanizing agents is mixed, and knead 10min on a mill.It is mixed
Refining obtains electrically insulating silicone rubber elastomeric compound after terminating.
S516：Electrically insulating silicone rubber elastomeric compound parks 24h at ambient temperature.End is parked, is determined and insulated using vulcameter
Sulfurizing time of the silicon rubber gross rubber in the case where temperature is 175 DEG C.Determine after sulfurizing time, electrically insulating silicone rubber elastomeric compound is in temperature
Degree is 175 DEG C, pressure is to be vulcanized under conditions of 3MPa, obtains electrically insulating silicone rubber.
After testing, the shore hardness of electrically insulating silicone rubber provided in an embodiment of the present invention is 55, and resistivity is 2.7 × 1014Ω,
It is 436 DEG C to thermally decompose initial temperature, and limited oxygen index is 35.3%.
The embodiment of the present invention provides a kind of semi-conductive silicone rubber, and the raw material of the semi-conductive silicone rubber is according to mass fraction bag
Include：
100 parts of raw-silastic continuously, 25 parts of modified white carbon black, 2 parts of constitution controller, 35 parts of glass dust, 28 parts of Vitrified powder, resistance
Fire 30 parts of agent, 1 part of vulcanizing agent, 20 parts of conductive filler.
The embodiment of the present invention provides a kind of preparation method of semi-conductive silicone rubber, and this method is specifically included：
S521：Methyl vinyl silicon kautschuk is put into kneader the 5min that plasticates.
S522：Methyl vinyl silicon kautschuk is plasticated after end, by the fume colloidal silica of titanate coupling agent modified
It is added to hydroxy silicon oil in the methyl vinyl silicon kautschuk after plasticating, in kneader under conditions of temperature is 50 DEG C
30min is kneaded, rubber master batch is formed.
S523：Borate oxide glasses powder, mica, montmorillonite, aluminium hydroxide, chloroplatinic acid and graphitic carbon black are added to
In rubber master batch, continue to knead 30min under conditions of temperature is 50 DEG C.
S524：After mixing terminates again, the temperature of kneader is increased to 80 DEG C.Temperature is increased to after 80 DEG C, in vacuum
Spend to vacuumize 30min under the conditions of 0.1bar.After vacuumizing, sizing material room temperature cooling treatment.
S525：Sizing material is cooled to after room temperature, sizing material and double 24 vulcanizing agents is mixed, and knead 10min on a mill.It is mixed
Refining obtains semi-conductive rubber elastomeric compound after terminating.
S526：Semi-conductive rubber elastomeric compound parks 24h at ambient temperature.Park after end, half is determined using vulcameter
Sulfurizing time of the conductive rubber elastomeric compound in the case where temperature is 175 DEG C.Determine after sulfurizing time, semi-conductive rubber elastomeric compound exists
Temperature is 175 DEG C, pressure is to be vulcanized under conditions of 3MPa, obtains semi-conductive rubber.
After testing, semi-conductive rubber shore hardness provided in an embodiment of the present invention is 58, and resistivity is 6.5 × 103Ω, heat
It is 421 DEG C to decompose initial temperature, and limited oxygen index is 34%.
The embodiment of the present invention provides a kind of cable head casing tube, and cable head casing tube includes inner sandwich layer, insulating barrier from inside to outside
With exterior skin layer.The preparation method be the same as Example 1 of the cable head casing tube.
Embodiment 6
The embodiment of the present invention provides a kind of electrically insulating silicone rubber, and the raw material of the electrically insulating silicone rubber includes according to mass fraction：
100 parts of raw-silastic continuously, 25 parts of modified white carbon black, 5 parts of constitution controller, 30 parts of glass dust, 20 parts of Vitrified powder, resistance
Fire 25 parts of agent, 2 parts of vulcanizing agent.
The embodiment of the present invention provides a kind of preparation method of electrically insulating silicone rubber, the preparation process be the same as Example 1 of this method.Its
In, modified white carbon black is silane coupler modified precipitated silica, and constitution controller is diphenyl silanediol and hydroxyl silicon
The mixture of oil, glass dust is borosilicate glass powder, and Vitrified powder is wollastonite, and fire retardant is magnesium hydroxide, and vulcanizing agent is peroxidating
Diisopropylbenzene (DIPB).After testing, the shore hardness of electrically insulating silicone rubber provided in an embodiment of the present invention is 53, and resistivity is 2.8 × 1014
Ω, thermal decomposition initial temperature is 443 DEG C, and limited oxygen index is 35.6%.
The embodiment of the present invention provides a kind of semi-conductive silicone rubber, and the raw material of the semi-conductive silicone rubber is according to mass fraction bag
Include：
100 parts of raw-silastic continuously, 25 parts of modified white carbon black, 5 parts of constitution controller, 30 parts of glass dust, 20 parts of Vitrified powder, resistance
Fire 25 parts of agent, 2 parts of vulcanizing agent, 15 parts of conductive filler.
The embodiment of the present invention provides a kind of preparation method of semi-conductive silicone rubber, the preparation process be the same as Example 1 of this method.
Wherein, each raw material is identical with the raw material for preparing electrically insulating silicone rubber, is only addition conductive filler, and conductive filler is graphitic carbon black.
After testing, the shore hardness of semi-conductive silicone rubber provided in an embodiment of the present invention is 56, and resistivity is 7.2 × 103Ω, thermal decomposition
Initial temperature is 434 DEG C, and limited oxygen index is 33.8%.
The embodiment of the present invention provides a kind of cable head casing tube, and cable head casing tube includes inner sandwich layer, insulating barrier from inside to outside
With exterior skin layer.The preparation method be the same as Example 1 of the cable head casing tube.
Those skilled in the art will readily occur to its of the present invention after the disclosure that specification and practice are invented here is considered
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including undocumented common knowledge in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the relational terms of such as " first " and " second " or the like be used merely to an entity or
Operation makes a distinction with another entity or operation, and not necessarily requires or imply these entities or exist between operating any
This actual relation or order.The invention is not limited in the precision architecture for being described above and being shown in the drawings,
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim
System.
Claims (10)
1. a kind of electrically insulating silicone rubber, it is characterised in that the raw material of the electrically insulating silicone rubber includes according to mass fraction：
100 parts of raw-silastic continuously, 20-30 parts of modified white carbon black, 2-10 parts of constitution controller, 20-50 parts of glass dust, Vitrified powder 5-
30 parts, 10-40 parts of fire retardant, 1-2 parts of vulcanizing agent.
2. electrically insulating silicone rubber according to claim 1, it is characterised in that the modified white carbon black is by coupling agent surface
The fume colloidal silica or precipitated silica of processing, the coupling agent are silane coupler or titanate coupling agent.
3. electrically insulating silicone rubber according to claim 1, it is characterised in that the fire retardant is halogen-free flame retardants, the nothing
Halogen fire retardant includes at least one of aluminium hydroxide, magnesium hydroxide, microcapsule red phosphorus and chloroplatinic acid.
4. electrically insulating silicone rubber according to claim 1, it is characterised in that the Vitrified powder is laminar silicic acid filler salt, institute
Stating laminar silicic acid filler salt includes at least one of mica, wollastonite, kaolin and montmorillonite.
5. a kind of semi-conductive silicone rubber, it is characterised in that the raw material of the semi-conductive silicone rubber includes according to mass fraction：
100 parts of raw-silastic continuously, 20-30 parts of modified white carbon black, 2-10 parts of constitution controller, 20-50 parts of glass dust, Vitrified powder 5-
30 parts, 10-40 parts of fire retardant, 1-2 parts of vulcanizing agent, 10-20 parts of conductive filler.
6. semi-conductive silicone rubber according to claim 5, it is characterised in that the conductive filler includes acetylene carbon black, stone
At least one of black carbon black and conductive carbon fibre.
7. a kind of preparation method of electrically insulating silicone rubber, it is characterised in that methods described includes：
Raw-silastic continuously is plasticated 5-10min；
Modified white carbon black and constitution controller are added in the raw-silastic continuously after plasticating, 10- is kneaded at 50-80 DEG C
30min, forms rubber master batch；
Glass dust, Vitrified powder and fire retardant are added in the rubber master batch, 30-60min is kneaded at 50-80 DEG C；
Mixing is warming up to 80-120 DEG C after terminating and vacuumized, and cools down；
Vulcanizing agent is added after cooling, 5-10min is kneaded, obtains electrically insulating silicone rubber elastomeric compound；
The electrically insulating silicone rubber elastomeric compound is parked to be vulcanized after 8-24h, obtains electrically insulating silicone rubber.
8. a kind of preparation method of semi-conductive silicone rubber, it is characterised in that methods described includes：
Raw-silastic continuously is plasticated 5-10min；
Modified white carbon black and constitution controller are added in the raw-silastic continuously after plasticating, 10- is kneaded at 50-80 DEG C
30min, forms rubber master batch；
Glass dust, Vitrified powder, fire retardant and conductive filler are added in the rubber master batch, 40-60min is kneaded at 50-80 DEG C；
Mixing is warming up to 80-120 DEG C after terminating and vacuumized, and cools down；
Vulcanizing agent is added after cooling, 5-10min is kneaded, obtains semi-conductive silicone rubber elastomeric compound；
The semi-conductive silicone rubber elastomeric compound is parked to be vulcanized after 8-24h, obtains semi-conductive silicone rubber.
9. a kind of cable head casing tube, it is characterised in that the cable head casing tube includes inner sandwich layer from inside to outside, insulating barrier and outer
Skinning layer, the inner sandwich layer and exterior skin layer are the semi-conductive silicone rubber described in claim 5 or 6, and the insulating barrier is
Electrically insulating silicone rubber in claim 1-4 described in any one；The cable head casing tube is formed in 175 DEG C of hot pressing.
10. a kind of cable head casing tube, it is characterised in that the cable head casing tube include inner sandwich layer from inside to outside, insulating barrier and
Exterior skin layer, the inner sandwich layer and exterior skin layer are prepared as the preparation method of the semi-conductive silicone rubber described in claim 8
Form, the insulating barrier is prepared from by the preparation method of the electrically insulating silicone rubber described in claim 7；The cable head casing tube exists
175 DEG C of hot pressing are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710616799.0A CN107286664A (en) | 2017-07-26 | 2017-07-26 | A kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710616799.0A CN107286664A (en) | 2017-07-26 | 2017-07-26 | A kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107286664A true CN107286664A (en) | 2017-10-24 |
Family
ID=60102691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710616799.0A Pending CN107286664A (en) | 2017-07-26 | 2017-07-26 | A kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107286664A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109711078A (en) * | 2018-12-29 | 2019-05-03 | 云南电网有限责任公司电力科学研究院 | A kind of breaker contact system in short-term in tolerance course thermal stability calculation method |
| CN109957248A (en) * | 2017-12-22 | 2019-07-02 | 洛阳尖端技术研究院 | It is used to form the composition and flame-proof silicon rubber of flame-proof silicon rubber |
| CN110093039A (en) * | 2019-04-17 | 2019-08-06 | 东莞市利群榕兴高分子科技有限公司 | A kind of silicone rubber compound and its manufacturing method of conductive anti-energy ceramic of fighting |
| CN110591368A (en) * | 2019-11-14 | 2019-12-20 | 山东易科汇企业管理咨询有限公司 | Preparation method of halogen-free silica gel for power line |
| CN112111159A (en) * | 2020-09-18 | 2020-12-22 | 苏州雷朗新材料科技有限公司 | High-temperature vulcanized silicone rubber with conductivity and ceramic property and preparation method thereof |
| CN112940512A (en) * | 2021-02-05 | 2021-06-11 | 东莞市朗晟材料科技有限公司 | Temperature-resistant insulating silicone rubber, preparation method thereof and temperature-resistant insulating adhesive tape |
| CN113178287A (en) * | 2021-04-17 | 2021-07-27 | 珠海格力电工有限公司 | Manufacturing method of low-organic-silicon enameled wire |
| CN113412522A (en) * | 2019-02-11 | 2021-09-17 | 赫兹曼电力公司 | Elastic tubular high voltage insulator |
| CN114102948A (en) * | 2021-09-26 | 2022-03-01 | 江苏共维电子科技有限公司 | Cable compression molding method adopting solid silica gel |
| CN115537137A (en) * | 2021-06-29 | 2022-12-30 | 中国科学院化学研究所 | Ceramizable silicone rubber compound, ceramizable silicone rubber, and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055841A (en) * | 1989-12-29 | 1991-10-30 | 明尼苏达州采矿制造公司 | Be used to seal the radially contractibility sleeve pipe of cable joint or cable socket |
| CN101330200A (en) * | 2007-09-21 | 2008-12-24 | 深圳市长园新材料股份有限公司 | Thermal shrinkage type composite casing tube for cable midst joint and manufacturing method thereof |
| CN102260411A (en) * | 2011-06-13 | 2011-11-30 | 青岛信本科技有限公司 | Silicon rubber cable joint |
| CN103547002A (en) * | 2013-09-27 | 2014-01-29 | 安徽华印机电股份有限公司 | Inflaming retarding typed carbon fiber heating cable |
| CN103992648A (en) * | 2014-05-22 | 2014-08-20 | 安徽嘉木橡塑工业有限公司 | Conductive and flame-retardant rubber composite |
| CN105694471A (en) * | 2016-04-17 | 2016-06-22 | 北京化工大学 | Preparation method of ceramizing fire-resistant silicon rubber |
-
2017
- 2017-07-26 CN CN201710616799.0A patent/CN107286664A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055841A (en) * | 1989-12-29 | 1991-10-30 | 明尼苏达州采矿制造公司 | Be used to seal the radially contractibility sleeve pipe of cable joint or cable socket |
| CN101330200A (en) * | 2007-09-21 | 2008-12-24 | 深圳市长园新材料股份有限公司 | Thermal shrinkage type composite casing tube for cable midst joint and manufacturing method thereof |
| CN102260411A (en) * | 2011-06-13 | 2011-11-30 | 青岛信本科技有限公司 | Silicon rubber cable joint |
| CN103547002A (en) * | 2013-09-27 | 2014-01-29 | 安徽华印机电股份有限公司 | Inflaming retarding typed carbon fiber heating cable |
| CN103992648A (en) * | 2014-05-22 | 2014-08-20 | 安徽嘉木橡塑工业有限公司 | Conductive and flame-retardant rubber composite |
| CN105694471A (en) * | 2016-04-17 | 2016-06-22 | 北京化工大学 | Preparation method of ceramizing fire-resistant silicon rubber |
Non-Patent Citations (1)
| Title |
|---|
| 宋红涛: "高性能聚乙烯绝缘材料与半导电屏蔽材料制备及其性能研究", 《中国博士学位论文工程科技Ⅰ辑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957248A (en) * | 2017-12-22 | 2019-07-02 | 洛阳尖端技术研究院 | It is used to form the composition and flame-proof silicon rubber of flame-proof silicon rubber |
| CN109711078A (en) * | 2018-12-29 | 2019-05-03 | 云南电网有限责任公司电力科学研究院 | A kind of breaker contact system in short-term in tolerance course thermal stability calculation method |
| CN113412522A (en) * | 2019-02-11 | 2021-09-17 | 赫兹曼电力公司 | Elastic tubular high voltage insulator |
| CN110093039A (en) * | 2019-04-17 | 2019-08-06 | 东莞市利群榕兴高分子科技有限公司 | A kind of silicone rubber compound and its manufacturing method of conductive anti-energy ceramic of fighting |
| CN110591368A (en) * | 2019-11-14 | 2019-12-20 | 山东易科汇企业管理咨询有限公司 | Preparation method of halogen-free silica gel for power line |
| CN112111159A (en) * | 2020-09-18 | 2020-12-22 | 苏州雷朗新材料科技有限公司 | High-temperature vulcanized silicone rubber with conductivity and ceramic property and preparation method thereof |
| CN112940512A (en) * | 2021-02-05 | 2021-06-11 | 东莞市朗晟材料科技有限公司 | Temperature-resistant insulating silicone rubber, preparation method thereof and temperature-resistant insulating adhesive tape |
| CN113178287A (en) * | 2021-04-17 | 2021-07-27 | 珠海格力电工有限公司 | Manufacturing method of low-organic-silicon enameled wire |
| CN115537137A (en) * | 2021-06-29 | 2022-12-30 | 中国科学院化学研究所 | Ceramizable silicone rubber compound, ceramizable silicone rubber, and preparation method and application thereof |
| CN115537137B (en) * | 2021-06-29 | 2023-09-12 | 中国科学院化学研究所 | Ceramic silicon rubber compound, ceramic silicon rubber and preparation method and application thereof |
| CN114102948A (en) * | 2021-09-26 | 2022-03-01 | 江苏共维电子科技有限公司 | Cable compression molding method adopting solid silica gel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107286664A (en) | A kind of electrically insulating silicone rubber, semi-conductive silicone rubber, cable head casing tube and preparation method | |
| CN104327366B (en) | A kind of weather resistant locomotive halogen free flame retardant cable sheath material prescription and preparation method | |
| CN105860536A (en) | Flame-retardant and fire-resistant ceramic silicone rubber and preparation method thereof | |
| CN107760039A (en) | A kind of ceramic flame-retardant silicon rubber and preparation method thereof | |
| CN107163585A (en) | It is a kind of can low-temp ceramics silicon rubber and preparation method thereof | |
| CN103819758A (en) | Flame-retardant fire-resistant rubber composition and preparation method thereof, and flame-retardant fire-resistant rubber wrapping tape | |
| CN104151745A (en) | High and low voltage power distribution cabinet housing material and preparation method thereof | |
| CN103224710B (en) | High-and-low-temperature-resistant, fireproof and environment-friendly rubber cable material and preparation method thereof | |
| CN105670301A (en) | Fire-resisting ceramic silicone rubber and preparation method thereof | |
| CN102888048B (en) | Low-smoke halogen-free and flame-retardant cable sheath material based on glass transition mechanism | |
| CN113105743B (en) | Heat-conducting ceramic silicon rubber material and preparation method thereof | |
| CN112111159A (en) | High-temperature vulcanized silicone rubber with conductivity and ceramic property and preparation method thereof | |
| CN105368054A (en) | Silicone rubber for electric wires and cables | |
| CN104200906A (en) | Purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable and production method thereof | |
| CN109957248A (en) | It is used to form the composition and flame-proof silicon rubber of flame-proof silicon rubber | |
| WO2016206243A1 (en) | Arc-resistant silicon rubber composite material, preparation method, and uses thereof | |
| CN106398042A (en) | Heat-resistant cable surface layer material and preparation method thereof | |
| CN104310937A (en) | Ceramic silicon rubber as well as preparation method and application thereof | |
| CN104804441A (en) | High-insulativity high-flame-resistance plastic material for electric insulating protective cover and preparation method of plastic material | |
| CN207097531U (en) | Develop the color anti-aging cable | |
| CN110128831A (en) | It is a kind of with excellent at porcelain and the Ceramic silicon rubber of anti-flammability and the preparation method and application thereof | |
| CN108250686A (en) | A kind of heat conduction high pressure breakdown Electric insulation material and preparation method thereof | |
| CN103077786A (en) | Enhanced composite insulator umbrella skirt sheath | |
| CN102977612B (en) | A kind of acrylate flame-proof environmental protection rubber cable material and preparation method thereof | |
| CN105802247A (en) | Weather-resistant cable insulating material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |
|
| RJ01 | Rejection of invention patent application after publication |