CN114292470B - Outer sheath flame-retardant material for seamless metal sheath photoelectric composite cable and photoelectric composite cable using material to prepare outer sheath - Google Patents
Outer sheath flame-retardant material for seamless metal sheath photoelectric composite cable and photoelectric composite cable using material to prepare outer sheath Download PDFInfo
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Abstract
The application relates to the field of photoelectric composite cables, and particularly discloses an outer sheath flame-retardant material for a seamless metal sheath photoelectric composite cable and the photoelectric composite cable with the outer sheath prepared by using the material. The outer sheath flame-retardant material for the seamless metal sheath photoelectric composite cable is prepared from the following raw materials, by weight, 80-120 parts of ethylene propylene diene monomer rubber, 10-30 parts of an inorganic flame retardant, 20-40 parts of a reinforcing agent, 10-30 parts of a modified filler, 6-12 parts of filling oil and 4-10 parts of a vulcanization component, wherein the modified filler comprises light calcium carbonate, tricarballylic acid and succinic acid, and the weight ratio of the light calcium carbonate, the tricarballylic acid and the succinic acid is 2-4:1:1-3. The flame retardant material can be used for preparing the outer sheath of the photoelectric composite cable, and has the advantage of reducing the harm of halogen flame retardants to the environment.
Description
Technical Field
The application relates to the field of photoelectric composite cables, in particular to an outer sheath flame-retardant material for a seamless metal sheath photoelectric composite cable and a photoelectric composite cable with an outer sheath prepared by using the material.
Background
The photoelectric composite cable is a novel access mode, is used as a transmission line in a broadband access network system, integrates optical fibers and power transmission copper wires, and can solve the problems of broadband access, equipment power consumption and signal transmission.
In the related art, in order to improve the flame retardant performance of the photoelectric composite cable, a flame retardant needs to be added into an outer sheath material of the photoelectric composite cable, and a halogen flame retardant is an important variety of organic flame retardants, and is the organic flame retardant with the largest yield and use amount in the world.
For the above-described related art, the inventors consider that: when the halogen flame retardant is flame-retardant to the optical composite cable, toxic smoke can be emitted, so that the environment is endangered.
Disclosure of Invention
In order to reduce the harm of halogen flame retardants to the environment, the application provides an outer sheath flame retardant material for a seamless metal sheath photoelectric composite cable and the photoelectric composite cable with the outer sheath prepared by using the material.
In a first aspect, the present application provides an outer sheath flame retardant material for a seamless metal sheath photoelectric composite cable, which adopts the following technical scheme:
the outer sheath flame-retardant material for the seamless metal sheath photoelectric composite cable is prepared from the following raw materials, by weight, 80-120 parts of ethylene propylene diene monomer rubber, 10-30 parts of an inorganic flame retardant, 20-40 parts of a reinforcing agent, 10-30 parts of a modified filler, 6-12 parts of filling oil and 4-10 parts of a vulcanization component, wherein the modified filler comprises light calcium carbonate, tricarballylic acid and succinic acid, and the weight ratio of the light calcium carbonate, the tricarballylic acid and the succinic acid is 2-4:1:1-3.
By adopting the technical scheme, the inorganic flame retardant is adopted as the flame retardant component, so that the pollution of the halogen flame retardant to the environment is effectively reduced, the light calcium carbonate reacts with the tricarballylic acid and the succinic acid to generate water and carbon dioxide in the combustion process, and the generated water can play a role in assisting in extinguishing fire together with the carbon dioxide and is combined with smoke generated by combustion, so that the smoke dissipated into the surrounding environment is reduced, and the pollution to the environment is reduced; and the light calcium carbonate reacts with the tricarballylic acid and the succinic acid to generate corresponding calcium salt to improve the heat conduction performance of the flame retardant material, thereby effectively improving the flame retardant performance of the flame retardant material.
Preferably, the inorganic flame retardant comprises aluminum hydroxide and magnesium hydroxide, and the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 1-3:1-3.
By adopting the technical scheme, in the combustion process of the flame retardant material, aluminum hydroxide and magnesium hydroxide are decomposed into corresponding oxides and water, so that the flame retardant effect is achieved, and meanwhile, the generation of toxic smoke is effectively reduced.
Preferably, the mass ratio of the aluminum hydroxide to the magnesium hydroxide to the tricarballylic acid is 10:10:3.
By adopting the technical scheme, the tricarballylic acid reacts with part of aluminum hydroxide and magnesium hydroxide to generate corresponding aluminum salt and magnesium salt, so that the heat conductivity of the flame retardant material is improved, and the flame retardant property of the flame retardant material is further improved.
Preferably, the reinforcing agent comprises hydrophilic fumed silica and zirconium dioxide, and the mass ratio of the fumed silica to the zirconium dioxide is 3-5:1-3.
According to the technical scheme, the hydrophilic gas-phase white carbon black and the zirconium dioxide are used as reinforcing agents to be filled in the ethylene propylene diene monomer rubber, so that the strength of the flame retardant material is effectively improved, meanwhile, the hydrophilic gas-phase white carbon black and the zirconium dioxide form a protective layer, and the water part generated in the combustion process is combined with the hydrophilic gas-phase white carbon black, so that the flame retardant effect can be achieved, and the generated smoke can be combined with the hydrophilic gas-phase white carbon black, so that the flame retardant performance of the material is further improved.
Preferably, the weight ratio of the extender oil to the light calcium carbonate is 1:1.
By adopting the technical scheme, the light calcium carbonate is easy to adsorb filling oil, so that the light calcium carbonate is more favorable for uniformly mixing in the ethylene propylene diene monomer rubber.
Preferably, the extender oil is naphthenic rubber oil.
By adopting the technical scheme, the inorganic flame retardant, the reinforcing agent, the modified filler and the vulcanization component are promoted to be uniformly dispersed in the ethylene propylene diene monomer rubber, so that the flame retardant property of the flame retardant material is improved.
Preferably, the vulcanization component comprises a vulcanizing agent and a secondary crosslinking agent, and the weight ratio of the vulcanizing agent to the secondary crosslinking agent is 3-7:1-3.
By adopting the technical scheme, the vulcanizing machine and the auxiliary crosslinking agent vulcanize the raw rubber to prepare the final product.
In a second aspect, the present application provides an optoelectronic composite cable using the above flame retardant material to prepare an outer sheath, which adopts the following technical scheme:
the photoelectric composite cable for preparing the outer sheath by using the flame-retardant material comprises an optical cable, a plurality of cables, an inner sheath, a metal sheath and an outer sheath from inside to outside in sequence, wherein the cables are circumferentially arranged along the peripheral side wall of the optical cable, two adjacent cables are abutted against each other, the inner sheath is coaxially arranged with the optical cable, the cables are abutted against the inner wall of the inner sheath, the inner wall of the metal sheath is abutted against the outer wall of the inner sheath, and the inner wall of the outer sheath is abutted against the outer wall of the metal sheath, and the inner sheath and the outer sheath are both made of the flame-retardant material.
Through adopting above-mentioned technical scheme, the metal sheath plays the supporting role to inner sheath and oversheath, and when photoelectric composite cable was lighted, the oversheath played flame retardant efficiency, and the inner sheath plays thermal-insulated effect to effectively reduce the damage of external conflagration to cable and optical cable, extension photoelectric composite cable's life.
In summary, the present application has the following beneficial effects:
1. because the application adopts inorganic flame retardant as flame retardant component to effectively reduce the pollution of halogen flame retardant to the environment when burning, light calcium carbonate and tricarballylic acid and succinic acid take place the reaction in the combustion process and produce water and carbon dioxide, and the water that produces not only can play the effect of supplementary fire extinguishing together with carbon dioxide, combines with the cigarette that the burning produced simultaneously, thereby reduces the smoke that escapes to the surrounding environment, reduces the pollution to the environment.
2. According to the flame retardant material, the hydrophilic gas-phase white carbon black and zirconium dioxide are used as reinforcing agents to be filled in the ethylene propylene diene monomer, so that the strength of the flame retardant material is effectively improved, meanwhile, the hydrophilic gas-phase white carbon black and zirconium dioxide form a protective layer, a water part generated in the combustion process is combined with the hydrophilic gas-phase white carbon black, so that the flame retardant effect can be achieved, and generated smoke can be combined with the hydrophilic gas-phase white carbon black to further improve the flame retardant performance of the material.
3. In the application, the light calcium carbonate reacts with the tricarballylic acid and the succinic acid to generate corresponding calcium salt to improve the heat conduction performance of the flame retardant material, and the tricarballylic acid reacts with part of aluminum hydroxide and magnesium hydroxide to generate corresponding aluminum salt and magnesium salt, so that the heat conduction performance of the flame retardant material is improved, and the flame retardant performance of the flame retardant material is effectively improved.
Drawings
Fig. 1 is a schematic overall structure of an embodiment 40 of the present application.
Reference numerals illustrate: 1. an outer sheath; 2. a metal sheath; 3. an inner sheath; 4. a cable; 41. an insulating protective layer; 42. a wire; 5. an optical cable; 51. a loose tube; 52. an optical fiber.
Detailed Description
The ethylene propylene diene monomer rubber raw rubber in the application is Jihua EPDM 4045, the fineness of aluminum hydroxide is 400 meshes, the fineness of magnesium hydroxide is 400 meshes, the fineness of vapor-phase white carbon black is 2000 meshes, the fineness of zirconium dioxide is 800 meshes, and the particle size D of light calcium carbonate 90 The composition is prepared by the following steps of (1) obtaining tricarballylic acid from Hubei cloud magnesium technologies, obtaining succinic acid from Guangdong biological technologies, obtaining cycloalkyl rubber oil with the model of KN4010, obtaining dicumyl peroxide (DCP) from Hubei Kovar chemical industry, obtaining triallyl isocyanurate (TAIC) from Shanghai International trade, obtaining halogen flame retardant (decabromodiphenyl ethane) from Shanghai Korea, obtaining diethyl ethylphosphonate (ethyl phosphonate) from Hubei Kovar chemical industry, obtaining auxiliary cross-linking agent (TAIC) from Shanghai) International trade, and obtaining organic flame retardant (ethyl phosphonate).
The present application is described in further detail below with reference to the drawings and examples.
Examples
Example 1
S1, mixing in a first section: adding 6kg of ethylene propylene diene monomer rubber, 0.5kg of aluminum hydroxide, 0.5kg of magnesium hydroxide, 1.5kg of fumed silica and 0.5kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.6kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.3kg of succinic acid into the internal mixer for mixing for 1min, adding 0.6kg of naphthenic base rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to obtain masterbatch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.3kg of vulcanizing agent, 0.1kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 2
S1, mixing in a first section: adding 6kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 3
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 4
S1, mixing in a first section: adding 14kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 5
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.6kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 6
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 1.2kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 7
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 0.5kg of aluminum hydroxide, 0.5kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 8
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 0.5kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 9
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 0.5kg of aluminum hydroxide, 1.5kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 10
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 0.5kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 11
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1.5kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 12
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1.5kg of aluminum hydroxide, 0.5kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 13
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1.5kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 14
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1.5kg of aluminum hydroxide, 1.5kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 15
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 1.5kg of fumed silica and 0.5kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 16
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 1.5kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 17
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 1.5kg of fumed silica and 1.5kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 18
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 0.5kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 19
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1.5kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 20
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2.5kg of fumed silica and 0.5kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 21
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2.5kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 22
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2.5kg of fumed silica and 1.5kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 23
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.6kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.3kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 24
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.6kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 25
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.6kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.9kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 26
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.3kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 27
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.9kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 28
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 1.2kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.3kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 29
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 1.2kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 30
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 1.2kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.9kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 31
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.3kg of vulcanizing agent, 0.1kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 32
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.3kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 33
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.3kg of vulcanizing agent, 0.3kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 34
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.1kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 35
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.3kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 36
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.7kg of vulcanizing agent, 0.1kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 37
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.7kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 38
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.7kg of vulcanizing agent, 0.3kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 39
S1, mixing in a first section: adding 14kg of ethylene propylene diene monomer rubber, 1.5kg of aluminum hydroxide, 1.5kg of magnesium hydroxide, 2.5kg of fumed silica and 1.5kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 1.2kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.9kg of succinic acid into the internal mixer for mixing for 1min, adding 1.2kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to obtain masterbatch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.7kg of vulcanizing agent, 0.3kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Example 40
The embodiment provides an optical-electrical composite cable with an outer sheath made of a flame retardant material.
Referring to fig. 1, an optoelectronic composite cable sequentially comprises an optical cable 5, a plurality of cables 4, an inner sheath 3, a metal sheath 2 and an outer sheath 1 from inside to outside, wherein the plurality of cables 4 are circumferentially arranged along the peripheral side wall of the optical cable 5, two adjacent cables 4 are abutted, the inner sheath 3 is coaxially arranged with the optical cable 5, the cables 4 are abutted with the inner wall of the inner sheath 3, the inner wall of the metal sheath 2 is abutted with the outer wall of the inner sheath 3, the inner wall of the outer sheath 1 is abutted with the outer wall of the metal sheath 2, and the inner sheath 3 and the outer sheath 1 are made of flame-retardant materials.
Referring to fig. 1, the number of cables 4 is eight, and the cables 4 include the wires 12 and the insulating protective layer 41 sleeved outside the wires 42. The optical cable 5 includes an optical fiber 52 and a loose tube 51 sleeved outside the optical fiber 52.
Comparative example
Comparative example 1
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate and 0.6kg of succinic acid into the internal mixer for mixing for 1min, and adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, so as to prepare a masterbatch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Comparative example 2
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate and 0.3kg of tricarballylic acid into the internal mixer for mixing for 1min, and adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Comparative example 3
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Comparative example 4
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Comparative example 5
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.3kg of tricarballylic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Comparative example 6
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃ and the rotating speed is 77r/min, and preparing master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Comparative example 7
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 1kg of aluminum hydroxide, 1kg of magnesium hydroxide, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, and preparing master batch at 160 ℃ and a rotating speed of 77 r/min;
S2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Comparative example 8
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 2kg of decabromodiphenyl ethane, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
S3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
Comparative example 9
S1, mixing in a first section: adding 10kg of ethylene propylene diene monomer rubber, 2kg of diethyl ethylphosphonate, 2kg of fumed silica and 1kg of zirconium dioxide into an internal mixer for mixing for 1min, adding 0.9kg of light calcium carbonate, 0.3kg of tricarballylic acid and 0.6kg of succinic acid into the internal mixer for mixing for 1min, adding 0.9kg of cycloalkyl rubber oil into the internal mixer for mixing for 1min, wherein the mixing temperature is 160 ℃, and the rotating speed is 77r/min, so as to prepare master batch;
s2, mixing in a second stage: adding one half of the masterbatch prepared by S1, 0.5kg of vulcanizing agent, 0.2kg of auxiliary crosslinking agent and the remaining one half of the masterbatch prepared by S1 into an internal mixer, continuously mixing at the initial mixing temperature of 45 ℃ and the rotating speed of 77r/min, and discharging the mixture after observing that the mixing temperature in the internal mixer is increased to 110 ℃;
s3, extrusion vulcanization: and (3) preparing the mixed rubber into a rubber sheath tube by using a rubber extruder, vulcanizing in a vulcanizing tank at the vulcanizing temperature of 160 ℃ for 3 hours, and obtaining a final product.
TABLE 1 raw materials Table (kg) for examples 1-39 and comparative examples 1-9
Performance test according to GB/T10707-2008 "determination of rubber Combustion Performance", test was performed using the formulations and partial process preparation samples provided in examples 1-39 and comparative examples 1-9, the test items were oxygen indexes, and specific test data are shown in Table 2.
According to GB/T8323.2-2008 Plastic Smoke Generation part 2: single Chamber method test method for measuring smoke Density test method for preparing sheet samples using the formulations provided in examples 1-39 and comparative examples 1-9, the samples were tested and exposed to a prescribed 50kW/m 2 For each group of 3 samples tested under flame conditions, the average value was taken and the sample size was referred to the 6.2 specific test data, table 2.
Table 2 table of performance test data
As can be seen from the combination of example 3 and comparative examples 1 to 7 and the combination of table 2, on the basis of comparative example 7, only one or two of light calcium carbonate, tricarballylic acid and succinic acid are added, and compared with the addition of light calcium carbonate, tricarballylic acid and succinic acid in example 3, the smoke reducing effect and flame retardant performance are inferior, because the melting of the tricarballylic acid and the mixing of the light calcium carbonate and succinic acid are uniform in the production process, when fire occurs, the light calcium carbonate reacts with the tricarballylic acid and succinic acid in the combustion process to produce water and carbon dioxide, and the produced water can not only play an auxiliary fire extinguishing role together with the carbon dioxide, but also combine with smoke generated by combustion, so that smoke dissipated into the surrounding environment is reduced, and environmental pollution is reduced; and the light calcium carbonate reacts with the tricarballylic acid and the succinic acid to generate corresponding calcium salt to improve the heat conduction performance of the flame retardant material, thereby effectively improving the flame retardant performance of the flame retardant material.
As can be seen from the combination of example 3, comparative example 8 and comparative example 9 and the combination of table 2, the inorganic flame retardant is used as a flame retardant component, which effectively reduces the generation of toxic smoke, thereby effectively reducing the pollution of halogen flame retardant to the environment during combustion; compared with the organic flame retardant, in the production process, the tricarballylic acid reacts with part of aluminum hydroxide and magnesium hydroxide to generate corresponding aluminum salt and magnesium salt, so that the heat conductivity of the flame retardant material is improved, and the flame retardant property of the flame retardant material is effectively improved.
It can be seen from the combination of example 3 and examples 7 to 14 and the combination of table 2 that the flame retardant property of the flame retardant material is effectively improved by selecting the addition amounts of aluminum hydroxide and magnesium hydroxide.
It can be seen from the combination of examples 3 and 15-22 and the combination of table 2 that the addition amounts of the fumed silica and the zirconium dioxide are selected to effectively improve the flame retardant property of the flame retardant material, the hydrophilic fumed silica and the zirconium dioxide form a protective layer, and the water part generated in the combustion process is combined with the hydrophilic fumed silica to play a flame retardant role, and the generated smoke is combined with the hydrophilic fumed silica to further improve the flame retardant property of the material.
It can be seen by combining example 3 and examples 23-30, and by combining Table 2, that by selecting the amounts of light calcium carbonate, tricarballylic acid and succinic acid added, the smoke escaping into the surrounding environment is reduced, reducing the environmental pollution.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (5)
1. An oversheath flame retardant material for a seamless metal sheath photoelectric composite cable, which is characterized in that: the modified ethylene propylene diene monomer rubber is prepared from the following raw materials, by weight, 80-120 parts of ethylene propylene diene monomer rubber, 10-30 parts of an inorganic flame retardant, 20-40 parts of a reinforcing agent, 10-30 parts of a modified filler, 6-12 parts of filling oil and 4-10 parts of a vulcanization component, wherein the modified filler comprises light calcium carbonate, tricarballylic acid and succinic acid, and the weight ratio of the light calcium carbonate, the tricarballylic acid and the succinic acid is 2-4:1:1-3; the inorganic flame retardant comprises aluminum hydroxide and magnesium hydroxide, and the mass ratio of the aluminum hydroxide to the magnesium hydroxide to the tricarballylic acid is 10:10:3; the reinforcing agent comprises hydrophilic fumed silica and zirconium dioxide, wherein the mass ratio of the fumed silica to the zirconium dioxide is 3-5:1-3.
2. The outer jacket flame retardant material for a seamless metal jacketed photovoltaic composite cable of claim 1, wherein: the weight ratio of the filling oil to the light calcium carbonate is 1:1.
3. The outer jacket flame retardant material for a seamless metal jacketed photovoltaic composite cable of claim 1, wherein: the filling oil is naphthenic base rubber oil.
4. The outer jacket flame retardant material for a seamless metal jacketed photovoltaic composite cable of claim 1, wherein: the vulcanization component comprises a vulcanizing agent and a secondary crosslinking agent, wherein the weight ratio of the vulcanizing agent to the secondary crosslinking agent is 3-7:1-3.
5. An optical-electrical composite cable using the flame retardant material of any one of claims 1-4 to prepare an outer sheath, characterized in that: the cable comprises an optical cable (5), a plurality of cables (4), an inner sheath (3), a metal sheath (2) and an outer sheath (1) from inside to outside, wherein the plurality of cables (4) are circumferentially arranged along the peripheral side wall of the optical cable (5), two adjacent cables (4) are abutted, the inner sheath (3) and the optical cable (4) are coaxially arranged, the cables (4) are abutted against the inner wall of the inner sheath (3), the inner wall of the metal sheath (2) is abutted against the outer wall of the inner sheath (3), the inner wall of the outer sheath (1) is abutted against the outer wall of the metal sheath (2), and the inner sheath (3) and the outer sheath (1) are made of the flame retardant material as claimed in claims 1-4.
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| GB632758A (en) * | 1947-09-08 | 1949-12-05 | Hugh Gavin Reid | New plastic compositions |
| JPH10130433A (en) * | 1996-10-30 | 1998-05-19 | Yokohama Rubber Co Ltd:The | Thermoplastic elastomer composition for high-pressure, flexible hose |
| CN103613879A (en) * | 2013-10-17 | 2014-03-05 | 昆山市奋发绝缘材料有限公司 | Electric wire electric cable |
| CN105121537A (en) * | 2013-02-14 | 2015-12-02 | 罗地亚经营管理公司 | Use of a polycarboxylic acid in the production of an elastomer composition |
| CN113736183A (en) * | 2021-10-20 | 2021-12-03 | 合肥工业大学 | Anti-seismic low-smoke halogen-free flame-retardant cable sheath material and preparation method and application thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB632758A (en) * | 1947-09-08 | 1949-12-05 | Hugh Gavin Reid | New plastic compositions |
| JPH10130433A (en) * | 1996-10-30 | 1998-05-19 | Yokohama Rubber Co Ltd:The | Thermoplastic elastomer composition for high-pressure, flexible hose |
| CN105121537A (en) * | 2013-02-14 | 2015-12-02 | 罗地亚经营管理公司 | Use of a polycarboxylic acid in the production of an elastomer composition |
| CN103613879A (en) * | 2013-10-17 | 2014-03-05 | 昆山市奋发绝缘材料有限公司 | Electric wire electric cable |
| CN113736183A (en) * | 2021-10-20 | 2021-12-03 | 合肥工业大学 | Anti-seismic low-smoke halogen-free flame-retardant cable sheath material and preparation method and application thereof |
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