CN103739927B - Temperature resistant grade is low-smoke zero-halogen cable material formula and the preparation method of 150 DEG C - Google Patents
Temperature resistant grade is low-smoke zero-halogen cable material formula and the preparation method of 150 DEG C Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/064—VLDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
- C08L2312/06—Crosslinking by radiation
Abstract
The invention provides the low-smoke zero-halogen cable material that a kind of temperature resistant grade is 150 DEG C, its each component calculates with parts by weight and comprises: base resin, the mixture that wherein said base resin is selected from ethylene-vinyl acetate (EVA), line style surpasses density polyethylene (VLDPE) and polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS), it comprises: EVA60 ~ 80 part; SEBS5 ~ 30 part; VLDPE5 ~ 30 part; Fire retardant, wherein said fire retardant comprises: magnesium hydroxide 70 ~ 190 parts; Boric acid trimeric cyanamide 5 ~ 25 parts; Antimonous oxide 5 ~ 25 parts; Compatilizer 3 ~ 10 parts; 3 ~ 8 parts, oxidation inhibitor; Lubricant 0.2 ~ 2 part; Coupling agent 0.5 ~ 2 part; Crosslinking sensitizer 2 ~ 10 parts.The temperature resistant grade that the invention provides superior thermal and processing characteristics excellence is the low-smoke zero-halogen cable material of 150 DEG C.
Description
Technical field
The present invention relates to a kind of electric cable material with low smoke and halogen free formula and preparation method, being specifically related to a kind of temperature resistant grade is 150 DEG C of irradiated crosslinking low-smoke and halogen-free flame retardant CABLE MATERIALS and preparation method.
Background technology
At cable under load current, generally can produce heat, add that cable generally connects up all in airtight environment, therefore be more prone to allow the temperature of cable remain high, be at this time just easy to cause fire.Therefore general CABLE MATERIALS all requires fire-retardant.And electrical materials and appliances many employings Halogen fire retardant material before, although its flame retardant effect is outstanding, during its burning, a large amount of toxic smog can be discharged, very large injury can be caused to human body and equipment.Strict recently along with environmental regulation, Halogen sheath material is replaced by low-smoke halogen-free flame-retardant sheath material gradually.
Fireproofing cable material without halide is in order to meet fire-retardant and requirement that is Halogen, and the design of general formula adopts polyolefine to be base material, adds a large amount of inorganic combustion inhibitor fillings and obtains fire-retardant framework.But it is fire-retardant still more difficult with contradiction that is mechanical property to take such Measures compare to solve.
In addition, when normal use temperature is 150 DEG C, material is because be subject to high temperature for a long time, therefore easy aging embrittlement.Material easily loses the protective value to electric wire.
In sum, this area lacks a kind of flame retardant resistance and mechanical property is good, and resistant to elevated temperatures low-smoke halogen-free flame-retardant sheath material and preparation method thereof.
Summary of the invention
The first object of the present invention is that obtaining a kind of temperature resistant grade is 150 DEG C of irradiated crosslinking low-smoke and halogen-free flame retardant CABLE MATERIALS, and temperature resistant grade is good, and flame retardant effect is outstanding, is applied on electric wire by single vertical combustion testing; And maintenance excellent mechanical performances.
The second object of the present invention is to obtain the preparation method that a kind of temperature resistant grade is 150 DEG C of irradiated crosslinking low-smoke and halogen-free flame retardant CABLE MATERIALS, and temperature resistant grade is good, and flame retardant effect is outstanding, is applied on electric wire by single vertical combustion testing; And maintenance excellent mechanical performances.
In a first aspect of the present invention, provide the low-smoke zero-halogen cable material that a kind of temperature resistant grade is 150 DEG C, its each component calculates with parts by weight and comprises:
Base resin, the mixture that wherein said base resin is selected from ethylene-vinyl acetate (EVA), line style surpasses density polyethylene (VLDPE) and polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS), it comprises:
EVA60 ~ 80 part;
SEBS5 ~ 30 part;
VLDPE5 ~ 30 part;
Fire retardant, wherein said fire retardant comprises:
In a specific embodiment of the present invention, wherein, its each component calculates with parts by weight and is made up of following component:
Base resin, the mixture that wherein said base resin is selected from ethylene-vinyl acetate (EVA), line style surpasses density polyethylene (VLDPE) and polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS), it comprises:
EVA60 ~ 80 part;
SEBS5 ~ 30 part;
VLDPE5 ~ 30 part;
Fire retardant, wherein said fire retardant comprises:
In a specific embodiment of the present invention, the VA content of ethylene-vinyl acetate (EVA) is 28 ~ 40%, and melt index is 0.5 ~ 3g/10min;
The melting index that line style surpasses density polyethylene (VLDPE) is: 0.5 ~ 5g/10min;
Polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS) butadiene content is 60-75%, is linear copolymer.
In a specific embodiment of the present invention, selected compatilizer is: ethylene-vinyl acetate grafted maleic anhydride copolymer (EVA-g-MAH) or Vinyl Graft copolymer-maleic anhydride (PE-g-MAH).
In a specific embodiment of the present invention, wherein, described lubricant is calcium stearate, Zinic stearas, Magnesium Stearate, polyethylene wax or its combination.
In a specific embodiment of the present invention, wherein, described oxidation inhibitor is selected from: 2,6-di-t-butyl is to ethyl phenol (oxidation inhibitor DBEP), four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), Tyox B (DLTP) or its combination.
In a specific embodiment of the present invention, wherein, oxidation inhibitor respectively forms components by weight percent and consists of:
2,6-di-t-butyl is to ethyl phenol 0.5 ~ 2.5 part;
Antioxidant 1010 0.5 ~ 1.5 part;
Tyox B 1 ~ 1.5 part.
In a specific embodiment of the present invention, wherein, described coupling agent is: vinyl three ('beta '-methoxy oxyethyl group) silane (A-172).
In a specific embodiment of the present invention, wherein, described crosslinking sensitizer is in triallyl isocyanurate (TAIC) or trihydroxy methyl propane trimethyl acrylate.
A second aspect of the present invention provides a kind of temperature resistant grade as described in the present invention to be the preparation method of the low-smoke zero-halogen cable material of 150 DEG C, comprises following processing step:
There is provided CABLE MATERIALS as described in the present invention each component;
Fire retardant ratio is mixed to temperature to 110 ± 5 DEG C, after adding lubricant, stirs discharging in 3 ~ 6 minutes;
Each component is added Banbury mixer successively, banburying mixing discharging;
Adopt dual-screw pelletizer extruding pelletization, obtain the low-smoke zero-halogen cable material that temperature resistant grade is 150 DEG C.
In a specific embodiment of the present invention, four temperature sections in extruding pelletization process are: feeding section 100-115 DEG C, transportation section 100-115 DEG C, melt zone 120-130 DEG C, head 125-135 DEG C.
In a specific embodiment of the present invention,
Component of the present invention is provided;
Fire retardant ratio is blended in high-speed mixer high speed and is mixed to temperature to 110 DEG C, stirs discharging in 3 ~ 6 minutes after adding Zinic stearas;
The fire retardant handled well, anti-aging agent, resin, compatilizer, lubricant, crosslinking sensitizer, coupling agent add Banbury mixer successively.At Banbury mixer to material plasticizing, powder and resin combine together and get final product discharging; Dual-screw pelletizer (production of Rhea polymkeric substance Equipment Limited, Nanjing) extruding pelletization.
Embodiment
The present inventor, through extensive and deep research, by improving preparation technology, obtains flame retardant resistance and mechanical property is good, and resistant to elevated temperatures low-smoke halogen-free flame-retardant sheath material and preparation method thereof.Complete the present invention on this basis.
Technical conceive of the present invention is as follows:
Fireproofing cable material without halide is in order to meet fire-retardant and requirement that is Halogen, and the design of general formula adopts polyolefine to be base material, adds a large amount of inorganic combustion inhibitor fillings and obtains fire-retardant framework.But it is fire-retardant still more difficult with contradiction that is mechanical property to take such Measures compare to solve.The present invention adopts novel flame-retarded technology, reduces the usage quantity of fire retardant, simultaneously on material impact less.And after a large amount of interpolation mineral filler, material is easily hardening, and feel is bad, and material of the present invention has good springiness, and feel is outstanding, the feature of easily processing.
In the present invention, term " contains " or " comprising " represents that various composition can be applied in mixture of the present invention or composition together.Therefore, term " primarily of ... composition " and " by ... form " be included in term and " contain " or in " comprising ".
Below describe in detail to various aspects of the present invention:
Temperature resistant grade is the low-smoke zero-halogen cable material of 150 DEG C
In a first aspect of the present invention, provide the low-smoke zero-halogen cable material that a kind of temperature resistant grade is 150 DEG C, its each component calculates with parts by weight and comprises:
Base resin, the mixture that wherein said base resin is selected from ethylene-vinyl acetate (EVA), line style surpasses density polyethylene (VLDPE) and polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS), it comprises:
EVA60 ~ 80 part;
SEBS5 ~ 30 part;
VLDPE5 ~ 30 part;
Fire retardant, wherein said fire retardant comprises:
In the present invention, selected ethylene-vinyl acetate (EVA) has the feature of high VA content, and processing temperature is low, can reduce the thermolysis produced in the course of processing.Itself and mineral filler, the consistency of oxidation inhibitor is excellent, substantially increases the stability of material.Line style surpasses density polyethylene (VLDPE) and has high tensile strength, fabulous snappiness, chemical resistance and radiation resistance.Polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS) butadiene content is 60-75%, is linear copolymer, has good resistance toheat, weather resistance, processability; Tensile strength of material, elongation at break is outstanding.Ethylene-vinyl acetate (EVA) stable chemical performance, radiation hardness, the feature that ageing resistance is outstanding.But independent component also cannot solve a difficult problem (being also contradiction that is fire-retardant and mechanical property) for prior art.
Described fire retardant is selected from: the combination of magnesium hydroxide, boric acid trimeric cyanamide, antimonous oxide.Boric acid trimeric cyanamide heat decomposition temperature is greater than 300 degree, and thermal endothermic decomposition is trimeric cyanamide and cyanuric acid, dilution oxygen and inflammable gas, itself and antimonous oxide share can increase material become carbon and self-extinguishment, greatly improve flame retardant properties, without water clock during burning.Magnesium hydroxide and aluminium hydroxide are highly effective inorganic flame-proof agent, and decomposes Cheng Shui and metal oxide, take away heat output, play fire-retardant effect.
And above-mentioned base resin and fire retardant coordinate the contradiction solved well between flame retardant properties and mechanical property.
It is 150 DEG C that product of the present invention can meet the warm grade of use, and has splendid flame retardant properties and processing characteristics, can meet many environment special occasions and use.
More specifically show:
1, ethylene-vinyl acetate (EVA), line style surpass the mixture of density polyethylene (VLDPE) and polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS), have excellent heat impedance.And Drawing abillity is excellent.
2, the present invention adopts novel flame-retarded technology, and the electric wire manufactured with this material is by single vertical combustion testing.
3, cross-linking radiation sheath material of the present invention realizes being cross-linked by rumbatron, and production technique is simple, and energy consumption is low.
4, resulting materials good springiness of the present invention.
In a specific embodiment of the present invention, wherein, its each component calculates with parts by weight and is made up of following component:
Base resin, the mixture that wherein said base resin is selected from ethylene-vinyl acetate (EVA), line style surpasses density polyethylene (VLDPE) and polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS), it comprises:
EVA60 ~ 80 part;
SEBS5 ~ 30 part;
VLDPE5 ~ 30 part;
Fire retardant, wherein said fire retardant comprises:
In a specific embodiment of the present invention, the VA content of ethylene-vinyl acetate (EVA) is 28 ~ 40%, and melt index is 0.5 ~ 3g/10min;
The melting index that line style surpasses density polyethylene (VLDPE) is: 0.5 ~ 5g/10min;
Polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS) butadiene content is 60-75%, is linear copolymer.
In a specific embodiment of the present invention, selected compatilizer is: ethylene-vinyl acetate grafted maleic anhydride copolymer (EVA-g-MAH) or Vinyl Graft copolymer-maleic anhydride (PE-g-MAH).Described compatilizer can improve the dispersiveness of inorganic combustion inhibitor in resin, improves the stability of material, and improves the mechanical property of material.
In a specific embodiment of the present invention, wherein, described lubricant is calcium stearate, Zinic stearas, Magnesium Stearate, polyethylene wax or its combination.
In a specific embodiment of the present invention, wherein, described oxidation inhibitor is selected from: 2,6-di-t-butyl is to ethyl phenol (oxidation inhibitor DBEP), four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), Tyox B (DLTP) or its combination.
In a specific embodiment of the present invention, wherein, oxidation inhibitor respectively forms components by weight percent and consists of:
2,6-di-t-butyl is to ethyl phenol 0.5 ~ 2.5 part;
Antioxidant 1010 0.5 ~ 1.5 part;
Tyox B 1 ~ 1.5 part.
Above-mentioned preferred antioxidant system can make the overall activation energy of the component of cable jacket material very low, has excellent heat impedance.2,6-described di-t-butyls have remarkable thermostability and long-acting thermal ageing resistant performance to ethyl phenol (oxidation inhibitor DBEP), merge with hindered phenol antioxygen 1010 the long-term heat aging property using and effectively can improve material.
In a specific embodiment of the present invention, wherein, described coupling agent is: vinyl three ('beta '-methoxy oxyethyl group) silane (A-172).Preferred vinyl three ('beta '-methoxy oxyethyl group) silane (A-172) is the production of De Gusai company.
Described coupling agent is vinyl three ('beta '-methoxy oxyethyl group) silane (A-172).Described coupling agent A-172 can improve the coupling between inorganic surfaces resin.Improve electric property and the physical strength of mineral-filled elastomer, particularly under hygrometric state, its performance is more remarkable.
In a specific embodiment of the present invention, wherein, described crosslinking sensitizer is in triallyl isocyanurate (TAIC) or trihydroxy methyl propane trimethyl acrylate.
Preferred, described crosslinking sensitizer is the TAIC crosslinking sensitizer of Liuyang municipal moral material Science and Technology Ltd..
Preparation method
A second aspect of the present invention provides a kind of temperature resistant grade as described in the present invention to be the preparation method of the low-smoke zero-halogen cable material of 150 DEG C, comprises following processing step:
There is provided CABLE MATERIALS as described in the present invention each component;
Fire retardant ratio is mixed to temperature to 110 ± 5 DEG C, after adding lubricant, stirs discharging in 3 ~ 6 minutes;
Each component is added Banbury mixer successively, banburying mixing discharging;
Adopt dual-screw pelletizer extruding pelletization, obtain the low-smoke zero-halogen cable material that temperature resistant grade is 150 DEG C.
In a specific embodiment of the present invention, four temperature sections in extruding pelletization process are: feeding section 100-115 DEG C, transportation section 100-115 DEG C, melt zone 120-130 DEG C, head 125-135 DEG C.
In a specific embodiment of the present invention,
Component of the present invention is provided;
Fire retardant ratio is blended in high-speed mixer high speed and is mixed to temperature to 110 DEG C, stirs discharging in 3 ~ 6 minutes after adding Zinic stearas;
The fire retardant handled well, anti-aging agent, resin, compatilizer, lubricant, crosslinking sensitizer, coupling agent add Banbury mixer successively.At Banbury mixer to material plasticizing, powder and resin combine together and get final product discharging; Dual-screw pelletizer (production of Rhea polymkeric substance Equipment Limited, Nanjing) extruding pelletization.
As no specific instructions, various raw material of the present invention all can be obtained by commercially available; Or prepare according to the ordinary method of this area.Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the same meaning be familiar with.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Other aspects of the present invention, due to disclosure herein, are apparent to those skilled in the art.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, measures according to national standard usually.If there is no corresponding national standard, then according to general international standard, normal condition or carry out according to the condition that manufacturer advises.Unless otherwise indicated, otherwise all numbers are weight part, and all per-cent is weight percentage, and described polymericular weight is number-average molecular weight.
Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the same meaning be familiar with.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.
Embodiment 1:
The preparation method of foregoing invention, it comprises following processing step:
Fire retardant ratio is blended in high-speed mixer high speed and is mixed to temperature to 110 DEG C, stirs discharging in 3 ~ 6 minutes after adding Zinic stearas.The fire retardant handled well, anti-aging agent, resin, compatilizer, lubricant, crosslinking sensitizer are complied with, coupling agent adds Banbury mixer.At Banbury mixer to material plasticizing, powder and resin combine together and get final product discharging; Dual-screw pelletizer (production of Rhea polymkeric substance Equipment Limited, Nanjing) extruding pelletization.Four temperature sections in extruding pelletization process are: feeding section 100-115 DEG C, transportation section 100-115 DEG C, melt zone 120-130 DEG C, head 125-135 DEG C.
Carry out performance detection experiment to the product in embodiment 1, each performance value is as table 1:
Table 1 embodiment 1 product performance test result
Embodiment 2:
The preparation method of above-mentioned CABLE MATERIALS is identical with embodiment 1
Embodiment 3:
The preparation method of above-mentioned CABLE MATERIALS is identical with embodiment 1
Embodiment 4:
The preparation method of above-mentioned CABLE MATERIALS is identical with embodiment 1
The foregoing is only preferred embodiment of the present invention, and be not used to limit substantial technological context of the present invention, substantial technological content of the present invention is broadly defined in the right of application, any technology entities that other people complete or method, if with application right define identical, also or a kind of change of equivalence, be all covered by being regarded as among this right.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read foregoing of the present invention, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (8)
1. temperature resistant grade is the low-smoke zero-halogen cable material of 150 DEG C, and its each component calculates with parts by weight and comprises:
Base resin, the mixture that wherein said base resin is selected from ethylene-vinyl acetate (EVA), line style surpasses density polyethylene (VLDPE) and polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS), it comprises:
EVA60 ~ 80 part;
SEBS5 ~ 30 part;
VLDPE5 ~ 30 part;
Fire retardant, wherein said fire retardant comprises:
Described compatilizer is: ethylene-vinyl acetate grafted maleic anhydride copolymer (EVA-g-MAH) or Vinyl Graft copolymer-maleic anhydride (PE-g-MAH);
Described oxidation inhibitor is selected from: 2,6-di-t-butyl is to ethyl phenol (oxidation inhibitor DBEP), four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), Tyox B (DLTP) or its combination.
2. low-smoke zero-halogen cable material as claimed in claim 1, wherein, its each component calculates with parts by weight and is made up of following component:
Base resin, the mixture that wherein said base resin is selected from ethylene-vinyl acetate (EVA), line style surpasses density polyethylene (VLDPE) and polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS), it comprises:
EVA60 ~ 80 part;
SEBS5 ~ 30 part;
VLDPE5 ~ 30 part;
Fire retardant, wherein said fire retardant comprises:
3. low-smoke zero-halogen cable material as claimed in claim 1, wherein,
The VA content of ethylene-vinyl acetate (EVA) is 28 ~ 40%, and melt index is 0.5 ~ 3g/10min;
The melting index that line style surpasses density polyethylene (VLDPE) is: 0.5 ~ 5g/10min;
Polystyrene-polybutadiene-polystyrene triblock copolymer (SEBS) butadiene content is 60-75%, is linear copolymer.
4. low-smoke zero-halogen cable material as claimed in claim 1, wherein, described lubricant is calcium stearate, Zinic stearas, Magnesium Stearate, polyethylene wax or its combination.
5. low-smoke zero-halogen cable material as claimed in claim 1, wherein, oxidation inhibitor respectively forms components by weight percent and consists of:
2,6-di-t-butyl is to ethyl phenol 0.5 ~ 2.5 part;
Antioxidant 1010 0.5 ~ 1.5 part;
Tyox B 1 ~ 1.5 part.
6. low-smoke zero-halogen cable material as claimed in claim 1, wherein, described coupling agent is: vinyl three ('beta '-methoxy oxyethyl group) silane (A-172).
7. low-smoke zero-halogen cable material as claimed in claim 1, wherein, described crosslinking sensitizer is triallyl isocyanurate (TAIC) or trihydroxy methyl propane trimethyl acrylate.
8. temperature resistant grade as claimed in claim 1 is a preparation method for the low-smoke zero-halogen cable material of 150 DEG C, comprises following processing step:
There is provided CABLE MATERIALS as claimed in claim 1 each component;
Fire retardant ratio is mixed to temperature to 110 ± 5 DEG C, after adding lubricant, stirs discharging in 3 ~ 6 minutes;
Each component is added Banbury mixer successively, banburying mixing discharging;
Adopt dual-screw pelletizer extruding pelletization, obtain the low-smoke zero-halogen cable material that temperature resistant grade is 150 DEG C.
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| CN105462052A (en) * | 2015-12-24 | 2016-04-06 | 上海至正道化高分子材料股份有限公司 | 125 DEG C irradiation crosslinking low-smoke halogen-free cable material for automotive wires and preparation method thereof |
| CN106633346A (en) * | 2016-12-01 | 2017-05-10 | 芜湖浩权建筑工程有限公司 | High-flame-retardant halogen-free cable material for building and preparation method thereof |
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