A kind of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function and its
Preparation method
Technical field
The present invention relates to CABLE MATERIALS technical fields, and in particular to a kind of fire-retardant TPE cables with electro-magnetic screen function are exhausted
Edge material or protective cover material and preparation method thereof.
Background technology
Currently, cable is widely used in electric system, information transmission and the fields such as instrument system, still, with traditional
Covering material of cable is easy to happen catching fire in use made of high molecular material PVC, causes fire, due to PVC
In chlorinity be up to 60%, will produce the smog of the toxic gases such as hydrogen halides and carbon monoxide in combustion.
TPE (Thermoplastic Elastomer) is the abbreviation of thermoplastic elastomer (TPE), is a kind of high-elastic with rubber
Property, high intensity, high resilience, but with can injection molding feature material;Not only the processing performance with thermoplastic, but also
Physical property with vulcanized rubber is the advantageous combination of plastics and rubber advantage.Because TPE it is environment-protecting and non-poisonous and safety,
Hardness range is wide, and has excellent coloring, soft-touch, weatherability, fatigue resistance and temperature tolerance, and processing performance is superior, nothing
Must vulcanization, can recycle and reduce cost, both can be with secondary injection molding, with the basis materials such as PP, PE, PC, PS, ABS
Coating and bonding, can also be separately formed.TPE is the plastic material that plastic cement processer is commonly used, and feature makes it that can also answer
For in electric wire industry.
But general thermoplastic elastomer (TPE) does not have anti-flammability, and with wireless communication tool, the height of radio-television industries
Speed development, office computer automation all-round popularization, the rapid proliferation of electric vehicle, electromagnetic radiation be it is ubiquitous, it is non-porous
Do not enter, becomes a kind of novel environmental pollution.To fetus, the influence of child is maximum, is exposed to electromagnetic radiation for a long time for electromagnetic radiation
Under, cancer, leukaemia etc. can be induced, the inducement of many diseases is become.In addition, electromagnetic interference can also cause instrument, instrument
Interference, causes to be unable to normal use, and especially in field of medical device, instrument precision is high, and the electromagnetic interference that cable generates is shadow
The main reason for ringing instrument normal work.Therefore, it is necessary to research and develop a kind of fire-retardant TPE cable insulations with electro-magnetic screen function
Material or protective cover material.
Invention content
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide one kind having electromagnetic screen
The fire-retardant TPE cable insulating materials or protective cover material of function are covered, the TPE cable insulating materials or protective cover material have electro-magnetic screen function, and
Flame retardant effect is excellent, and intensity is high, and flexibility is good, and elongation at break is high, excellent in mechanical performance.
Another object of the present invention is to provide a kind of fire-retardant TPE cable insulating materials or sheath with electro-magnetic screen function
The preparation method of material, the preparation method step is simple, convenient operation and control, stable quality, and production efficiency is high, and production cost is low,
It can large-scale industrial production.
The purpose of the invention is achieved by the following technical solution:A kind of fire-retardant TPE cables with electro-magnetic screen function are exhausted
Edge material or protective cover material include the raw material of following parts by weight:
Preferably, the SEBS be styrene units content in 40%-60%, acetate unit content in 20%-30%, fourth
Styrene-ethylene-butylene-styrene block copolymer of the alkene unit content in 20%-30%.The present invention is by using benzene second
Alkene-ethylene-butylene, Styrene block copolymer, and its unit content is controlled, there is preferable UV stable, antioxidant
And thermal stability, it is added to the tensile strength and flexibility that polyurethane can be improved in polyurethane.
The SEPS is for styrene units content in 40%-60%, acetate unit content in 20%-30%, propylene units
Styrene ethylene-propylene-styrene type block copolymer of the content in 20%-30%.The present invention is by using styrene-second
Alkene-propylene-styrene type block copolymer, and control its unit content, has a fabulous mechanical performance, good weatherability,
Splendid cryogenic property, it is preferred that electric insulating quality, it is preferred that heat resistance, fabulous chemical resistance, and have with polyolefin
Good compatibility.
Preferably, the PP be Rockwell hardness at a temperature of 90-120,230 DEG C melt index in the equal of 5-20g/10min
At least one of poly- polypropylene, block copolymerization polypropylene and atactic copolymerized polypropene.The present invention by using above-mentioned polypropylene,
So that the composite material of the present invention has good mechanical property, it is easily processed into type.More preferably, the PP is that Rockwell is hard
The degree homopolypropylene of melt index in the metallocene catalysis of 5-20g/10min at a temperature of 90-120,230 DEG C.
Homopolypropylene highly crystallized due to compound with regular structure, therefore fusing point may be up to 167 DEG C, it is heat-resisting, corrosion-resistant, have
Higher temperature in use.Density is small, is most light general-purpose plastics.The disadvantage is that low-temperature impact resistance is poor, it is more easy to aging, but can lead to
Modification is crossed to be overcome.
The present invention carries out modification by copolymerization by using metallocene to homopolypropylene, using metallocene as catalyst, with third
The modification carried out in polymerization stage based on alkene monomer can improve polyacrylic low-temperature flexibility, impact property, the transparency and processing
Mobility.
The POE be hardness 70-85A, octene units content 20%-30% ethylene-octene copolymer.The present invention
Have ageing-resistant, resistance to smelly in the ethylene-octene copolymer of 20%-30% in 70-85A, octene units content by using hardness
The excellent properties such as oxygen, resistant to chemical media are added to the tensile strength and flexibility that polyurethane can be improved in polyurethane.
The PE be low density polyethylene (LDPE), linear low density polyethylene and metallocene linear-low density polyethylene at least
It is a kind of.The present invention has higher softening temperature and melting temperature by using above-mentioned PE, there is that intensity is big, good toughness, rigidity
Greatly, heat-resisting, the advantages that cold resistance is good, also has good environmental stress crack resistance, the property such as impact strength, tear-resistant intensity
Energy.More preferably, the PE be melt index in 0.2-2.2g/10min, density in 0.918-0.946g/cm3It is linear low
Density polyethylene.
The oil is at least one of white oil, naphthenic oil and the White Mineral Oil of flash-point >=200 DEG C.The present invention is by using upper
Oil is stated, the mobility of SEBS can be improved, improves the processing performance of thermoplastic elastomer (TPE).
Preferably, the graphene is graphene of the surface through coupling agent treatment.Graphene is after coupling agent treatment, surface
Containing carboxyl, carbonyl isopolarity group so that the dispersion of graphene in the composite after coupling agent treatment is more uniform,
The compatibility of graphene and polyolefin can be improved.Specifically, the coupling agent is KH550 and/or KH770.
Preferably, the graphene is single-layer graphene or multi-layer graphene.The present invention by using single-layer graphene or
Multi-layer graphene so that TPE cable material has electro-magnetic screen function, greatly reduces injury of the electromagnetic radiation to human body.More
Preferably, the number of plies of the multi-layer graphene is 2-100 layers.
Preferably, the fire retardant is halogen-free flame retardants, and dosage is 10-35 parts;The halogen-free flame retardants be ammonium phosphate,
Ammonium polyphosphate, ammonium polyphosphate modifying, hypo-aluminum orthophosphate, melamine and its compound, zinc borate, montmorillonite, clay, metal hydrogen-oxygen
At least one of compound, organophosphorus compounds, organic hypophosphites compound and polyalcohol.
Wherein, the ammonium polyphosphate modifying is piperazine ammonium polyphosphate modifying, ethylenediamine ammonium polyphosphate modifying, diethylenetriamine
At least one of ammonium polyphosphate modifying and hydroxyethyl ethylenediamine ammonium polyphosphate modifying.
The melamine and its compound are melamine, melamine phosphate, melamine polyphosphate, trimerization
Pyrophosphate, melamine hypophosphite, melamine phosphite, melamine cyanurate and 2- carboxyethyl phenyls
At least one of phosphinic acids melamine salt.
The metal hydroxides is aluminium hydroxide and/magnesium hydroxide.
The organophosphorus compounds is trimethyl phosphate, triethyl phosphate, tricresyl phosphate propyl ester, tributyl phosphate, phosphorus
Sour three (2- ethylhexyls) esters, tricresyl phosphate (2- chloroethyls) ester, tricresyl phosphate (2,3- bis- chloropropyl) ester, tricresyl phosphate (2,3- dibromos
Propyl) in ester, tricresyl phosphate-diphenyl ester, tricresyl phosphate, triphenyl phosphate and phosphoric acid (2- ethylhexyls)-diphenyl ester
It is at least one.
The organic hypophosphites compound is hypophosphorous acid trimethyl, hypophosphorous acid triethyl, three propyl ester of hypophosphorous acid and secondary phosphorus
At least one of sour tributyl.
The polyalcohol is at least one of polyester polyol, polyether polyol and phosphorus-containing polyol.
More preferably, the halogen-free flame retardants is by poly cyanamid cyanurate, triphenyl phosphate, magnesium hydroxide and Meng Tuo
Soil is with weight ratio 1-2:0.8-1.2:1:The mixture of 0.4-0.8 compositions.
The present invention can improve the anti-flammability of material by using above-mentioned halogen-free flame retardants, to greatly improve its use
Safety further, since fire retardant is not halogen, therefore has the characteristics that environment-protecting and non-poisonous.
Another preferred, the fire retardant is by halogen containing flame-retardant and synergistic flame retardant with weight ratio 4-8:1-2 compositions
Mixture, dosage are 10-20 parts;The halogen containing flame-retardant is 2,6- dibromobenzene aethers, tetrabromobisphenol A, hexabromocyclododecane, eight
Bromo-ether, decabromodiphenylethane, poly- phenyl-pentabromide phenolic group acrylate, brominated polycarbonate, brominated epoxy resin and brominated polyphenylene second
At least one of alkene;The synergistic flame retardant is antimony oxide, bismuth oxide, molybdenum trioxide, di-iron trioxide, oxidation
At least one of tin, zinc oxide, zinc borate and zinc sulfate.More preferably, the fire retardant be by decabromodiphenylethane and
Antimony oxide is with weight ratio 4-8:The mixture of 1-2 compositions.
The present invention is used in compounding by using above-mentioned halogen containing flame-retardant and synergistic flame retardant, has excellent flame retardant property,
And it is cheap, stability is good, additive amount is few, good with the compatibility of synthetic resin material, and the original reason of material can be kept
Change performance.
The present invention is used in compounding by using halogen containing flame-retardant and synergistic flame retardant, can greatly reduce inorganic combustion inhibitor
Usage amount will not be to the processability of composite material to there is too big harmful effect to the mechanical property of composite material
It can cause harmful effect.
Preferably, the compatilizer is polypropylene grafted maleic anhydride, styrene-ethylene-butadiene-styrene copolymer
Grafted maleic anhydride, atactic styrene-maleic anhydride copolymer, ethylene-vinyl acetate grafted maleic anhydride and ethylene-octene
At least one of copolymer elastomer grafted maleic anhydride.More preferably, the compatilizer is by polypropylene grafted Malaysia
Acid anhydrides and styrene-ethylene-butadiene-styrene copolymer grafted maleic anhydride are with weight ratio 1-2:0.5-1.5 compositions mix
Close object.
The present invention can improve inorganic filler and organic resin compatibility by using above-mentioned compatilizer, improve composite material
Tensile strength and tearing strength, improve rheological performance, improve surface smoothness, it is scratch resistant white.
Preferably, the antioxidant is four [methylene -3,5- (di-t-butyl -4- hydroxy-phenies) propionic ester] Ji Wusi
Alcohol ester, N, bis- [[3- (3,5)--4 hydroxy phenyl of the di-t-butyl] propiono] hexamethylene diamines of N ' -, three [2,4- di-tert-butyl-phenyls] are sub-
Phosphate, diphosphorous acid pentaerythrite tristearin alcohol ester and β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid n-octadecyl alcohol ester
At least one of.More preferably, the antioxidant is by four [methylene -3,5- (di-t-butyl -4- hydroxy-phenies) third
Acid esters] pentaerythritol ester, three [2,4- di-tert-butyl-phenyls] phosphite esters and β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid
Positive octadecanol ester is with weight ratio 1:0.2-0.6:The mixture of 0.4-0.8 compositions.
The present invention can delay or inhibit the progress of material oxidation process, to prevent material by using above-mentioned antioxidant
The aging of material simultaneously extends its service life.
Preferably, further include 1-10 parts of smoke suppressant;The smoke suppressant is molybdenum compound, iron compound, metal oxide, magnesium
At least one of zinc complexes and zinc compound.
Wherein, the molybdenum compound is molybdenum trioxide and/or ammonium octamolybdate.The iron compound is ferrocene.The gold
Category oxide is at least one of magnesia, zinc oxide, nickel oxide, zirconium oxide, antimony trioxide and antimony pentoxide.The magnesium
Zinc complexes are magnesia and zinc oxide composites.The zinc compound is at least one in zinc borate, zinc aluminate and zinc stannate
Kind.
More preferably, the smoke suppressant is by ferrocene, antimony oxide and zinc borate with weight ratio 0.5-1.5:
1.5-2.5:The mixture of 1 composition.
For the present invention by using above-mentioned smoke suppressant, smoke suppressing effect is good, can reduce thermoplastic polyurethane and be produced in burning
Raw toxic gas and smog.
Preferably, further include 0.5-1.5 parts of 0.2-1.0 parts of UV resistant agent and lubricant.
The UV resistant agent is phenyl salicylate, Ultraviolet Absorber UV-P, ultra-violet absorber UV-O, ultraviolet light suction
Receive agent UV-9, ultraviolet absorbent UV-531, ultra-violet absorber UVP-327, ultra-violet absorber RMB, light stabilizer AM-
101, at least one of light stabilizer 744, light stabilizer HPT and 2,4,6- tri- (2 ' n-butoxyphenyl) -1,3,5- triazines.
More preferably, the ultra-violet absorber is by ultraviolet absorbent UV-531, ultra-violet absorber RMB and light stabilizer
744 with weight ratio 0.8-1.2:0.5-1.5:The mixture of 1 composition.
The present invention is by using above-mentioned UV resistant agent, with excellent when can absorb ultraviolet light strongly, and be used in compounding
Synergistic effect.
The lubricant is atoleine, solid paraffin, natural paraffin wax, microcrystalline wax, chlorinated paraffin, polyethylene wax, oxygen
It is hard to change polyethylene wax, aliphatic acid, butyl stearate, glycerin monostearate, ethylene bis stearamide, oleamide, pentaerythrite
Resin acid ester, N, N- ethylenebis Stearyl Amine, N, in N- ethylenebis ricinoleic acids acid amide, silicone and fluoropolymer at least
It is a kind of.More preferably, the lubricant is by oxidized polyethylene wax, pentaerythritol stearate and silicone with weight ratio 2-4:
0.5-1.5:The mixture of 1 composition.
For the present invention by using above-mentioned lubricant, can make material in process improves the mobility and product of material
Release property, improve the processing performance of material.
A kind of preparation method of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, including walk as follows
Suddenly:
(1) above-mentioned raw materials mixing is weighed by weight ratio, is put into high speed blender and is uniformly mixed, obtains mixture;
(2) the fire-retardant TPE with electro-magnetic screen function is made by double screw extruder extruding pelletization in mixture
Cable insulating material or protective cover material;
Wherein, the extruder temperature of the double screw extruder is 180-240 DEG C, screw speed 200-600r/min.
The beneficial effects of the present invention are:The TPE cable insulating materials or protective cover material of the present invention has electro-magnetic screen function, and
Flame retardant effect is excellent, and intensity is high, and flexibility is good, and elongation at break is high, excellent in mechanical performance.
The preparation method step of the present invention is simple, convenient operation and control, stable quality, and production efficiency is high, and production cost is low,
It can large-scale industrial production.
Specific implementation mode
For the ease of the understanding of those skilled in the art, with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, include the raw material of following parts by weight:
The SEBS be styrene units content in 40%, acetate unit content in 30%, butene units content 30%
Styrene-ethylene-butylene-styrene block copolymer.
The PP is the Rockwell hardness homopolypropylene of melt index in 5g/10min at a temperature of 90,230 DEG C;It is described
POE is ethylene-octene copolymer of the hardness in 70A, octene units content 20%;The PE is low density polyethylene (LDPE);It is described
Oil is white oil of the flash-point at 200 DEG C.
The graphene is graphene of the surface through coupling agent treatment.
The graphene is single-layer graphene.
The fire retardant is halogen-free flame retardants;The halogen-free flame retardants be ammonium phosphate, ammonium polyphosphate, ammonium polyphosphate modifying,
Hypo-aluminum orthophosphate or melamine and its compound.
The compatilizer is polypropylene grafted maleic anhydride.
The antioxidant is four [methylene -3,5- (di-t-butyl -4- hydroxy-phenies) propionic ester] pentaerythritol esters.
It further include 1 part of smoke suppressant;The smoke suppressant is molybdenum compound.
A kind of preparation method of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, including walk as follows
Suddenly:
(1) above-mentioned raw materials mixing is weighed by weight ratio, is put into high speed blender and is uniformly mixed, obtains mixture;
(2) the fire-retardant TPE with electro-magnetic screen function is made by double screw extruder extruding pelletization in mixture
Cable insulating material or protective cover material;
Wherein, the extruder temperature of the double screw extruder is 180 DEG C, screw speed 200r/min.
Embodiment 2
A kind of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, include the raw material of following parts by weight:
The SEPS be styrene units content in 40%, acetate unit content in 30%, propylene units content 30%
Styrene ethylene-propylene-styrene type block copolymer.
The PP is the Rockwell hardness block copolymerization polypropylene of melt index in 8g/10min at a temperature of 100,230 DEG C;
The POE is ethylene-octene copolymer of the hardness in 75A, octene units content 22%;The PE is linear low density polyethylene
Alkene;The oil is naphthenic oil of the flash-point at 220 DEG C.
The graphene is graphene of the surface through coupling agent treatment.
The graphene is multi-layer graphene, and the number of plies of the multi-layer graphene is 2 layers.
The fire retardant is by halogen containing flame-retardant and synergistic flame retardant with weight ratio 4:The mixture of 1 composition;It is described halogen
Fire retardant is 2,6- dibromobenzene aethers, tetrabromobisphenol A, hexabromocyclododecane, eight bromo ether, decabromodiphenylethane or poly- phenyl-pentabromide phenolic group
Acrylate;The synergistic flame retardant is antimony oxide, bismuth oxide, molybdenum trioxide or di-iron trioxide.
The compatilizer is styrene-ethylene-butadiene-styrene copolymer grafted maleic anhydride.
The antioxidant is N, bis- [[3- (3,5)--4 hydroxy phenyl of the di-t-butyl] propiono] hexamethylene diamines of N ' -.
It further include 3 parts of smoke suppressant;The smoke suppressant is iron compound.
A kind of preparation method of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, including walk as follows
Suddenly:
(1) above-mentioned raw materials mixing is weighed by weight ratio, is put into high speed blender and is uniformly mixed, obtains mixture;
(2) the fire-retardant TPE with electro-magnetic screen function is made by double screw extruder extruding pelletization in mixture
Cable insulating material or protective cover material;
Wherein, the extruder temperature of the double screw extruder is 200 DEG C, screw speed 300r/min.
Embodiment 3
A kind of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, include the raw material of following parts by weight:
The SEBS be styrene units content in 50%, acetate unit content in 25%, butene units content 25%
Styrene-ethylene-butylene-styrene block copolymer.
The PP is the Rockwell hardness atactic copolymerized polypropene of melt index in 12g/10min at a temperature of 105,230 DEG C;
The POE is ethylene-octene copolymer of the hardness in 78A, octene units content 25%;The PE is that metallocene linear is low close
Spend polyethylene;The oil is White Mineral Oil of the flash-point at 250 DEG C.
The graphene is graphene of the surface through coupling agent treatment.
The graphene is multi-layer graphene, and the number of plies of the multi-layer graphene is 10 layers.
The fire retardant is halogen-free flame retardants;The halogen-free flame retardants is zinc borate, montmorillonite, clay or metal hydroxide
Object.
The compatilizer is atactic styrene-maleic anhydride copolymer.
The antioxidant is three [2,4- di-tert-butyl-phenyls] phosphite esters.
It further include 5 parts of smoke suppressant;The smoke suppressant is metal oxide.
A kind of preparation method of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, including walk as follows
Suddenly:
(1) above-mentioned raw materials mixing is weighed by weight ratio, is put into high speed blender and is uniformly mixed, obtains mixture;
(2) the fire-retardant TPE with electro-magnetic screen function is made by double screw extruder extruding pelletization in mixture
Cable insulating material or protective cover material;
Wherein, the extruder temperature of the double screw extruder is 210 DEG C, screw speed 400r/min.
Embodiment 4
A kind of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, include the raw material of following parts by weight:
The SEPS be styrene units content in 50%, acetate unit content in 25%, propylene units content 25%
Styrene ethylene-propylene-styrene type block copolymer.
The PP be Rockwell hardness at a temperature of 110,230 DEG C melt index 16g/10min metallocene catalysis it is equal
Poly- polypropylene;The POE is ethylene-octene copolymer of the hardness in 80A, octene units content 28%;The PE is low close
Spend polyethylene;The oil is white oil of the flash-point at 280 DEG C.
The graphene is graphene of the surface through coupling agent treatment.
The graphene is multi-layer graphene, and the number of plies of the multi-layer graphene is 50 layers.
The fire retardant is by halogen containing flame-retardant and synergistic flame retardant with weight ratio 8:The mixture of 2 compositions;It is described halogen
Fire retardant is brominated polycarbonate, brominated epoxy resin or brominated Polystyrene;The synergistic flame retardant is tin oxide, oxidation
Zinc, zinc borate or zinc sulfate.
The compatilizer is ethylene-vinyl acetate grafted maleic anhydride.
The antioxidant is diphosphorous acid pentaerythrite tristearin alcohol ester.
It further include 8 parts of smoke suppressant;The smoke suppressant is magnesium zinc complexes.
A kind of preparation method of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, including walk as follows
Suddenly:
(1) above-mentioned raw materials mixing is weighed by weight ratio, is put into high speed blender and is uniformly mixed, obtains mixture;
(2) the fire-retardant TPE with electro-magnetic screen function is made by double screw extruder extruding pelletization in mixture
Cable insulating material or protective cover material;
Wherein, the extruder temperature of the double screw extruder is 220 DEG C, screw speed 500r/min.
Embodiment 5
A kind of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, include the raw material of following parts by weight:
The SEBS be styrene units content in 60%, acetate unit content in 20%, butene units content 20%
Styrene-ethylene-butylene-styrene block copolymer.
The PP is the Rockwell hardness block copolymerization polypropylene of melt index in 20g/10min at a temperature of 120,230 DEG C;
The POE is ethylene-octene copolymer of the hardness in 85A, octene units content 30%;The PE is that melt index exists
1.2g/10min, density is in 0.932g/cm3Linear low density polyethylene;The oil is naphthenic oil of the flash-point at 300 DEG C.
The graphene is graphene of the surface through coupling agent treatment.
The graphene is multi-layer graphene, and the number of plies of the multi-layer graphene is 100 layers.
The fire retardant is halogen-free flame retardants;The halogen-free flame retardants is organophosphorus compounds, organic hypophosphites
Compound or polyalcohol.
The compatilizer is ethylene-octene copolymer elastomer graft maleic anhydride.
The antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid n-octadecyl alcohol ester.
It further include 10 parts of smoke suppressant;The smoke suppressant is zinc compound.
A kind of preparation method of fire-retardant TPE cable insulating materials or protective cover material with electro-magnetic screen function, including walk as follows
Suddenly:
(1) above-mentioned raw materials mixing is weighed by weight ratio, is put into high speed blender and is uniformly mixed, obtains mixture;
(2) the fire-retardant TPE with electro-magnetic screen function is made by double screw extruder extruding pelletization in mixture
Cable insulating material or protective cover material;
Wherein, the extruder temperature of the double screw extruder is 240 DEG C, screw speed 600r/min.
Embodiment 6
The present embodiment and above-described embodiment 1 the difference is that:
The halogen-free flame retardants is by poly cyanamid cyanurate, triphenyl phosphate, magnesium hydroxide and montmorillonite with weight ratio
1:0.8:1:The mixture of 0.4 composition.
The compatilizer is grafted by polypropylene grafted maleic anhydride and styrene-ethylene-butadiene-styrene copolymer
Maleic anhydride is with weight ratio 1:The mixture of 0.5 composition.
The antioxidant be by four [methylene -3,5- (di-t-butyl -4- hydroxy-phenies) propionic ester] pentaerythritol esters,
Three [2,4- di-tert-butyl-phenyls] phosphite esters and β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid n-octadecyl alcohol esters are with weight
Measure ratio 1:0.2:The mixture of 0.4 composition.
The smoke suppressant is by ferrocene, antimony oxide and zinc borate with weight ratio 0.5:1.5:The mixture of 1 composition.
Further include 0.5 part of 0.2 part of UV resistant agent and lubricant.
The ultra-violet absorber be by ultraviolet absorbent UV-531, ultra-violet absorber RMB and light stabilizer 744 with
Weight ratio 0.8:0.5:The mixture of 1 composition.
The lubricant is by oxidized polyethylene wax, pentaerythritol stearate and silicone with weight ratio 2:0.5:1 composition
Mixture.
Embodiment 7
The present embodiment and above-described embodiment 2 the difference is that:
The fire retardant is by decabromodiphenylethane and antimony oxide with weight ratio 4:The mixture of 1 composition.
The compatilizer is grafted by polypropylene grafted maleic anhydride and styrene-ethylene-butadiene-styrene copolymer
Maleic anhydride is with weight ratio 1.2:The mixture of 0.8 composition.
The antioxidant be by four [methylene -3,5- (di-t-butyl -4- hydroxy-phenies) propionic ester] pentaerythritol esters,
Three [2,4- di-tert-butyl-phenyls] phosphite esters and β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid n-octadecyl alcohol esters are with weight
Measure ratio 1:0.3:The mixture of 0.5 composition.
The smoke suppressant is by ferrocene, antimony oxide and zinc borate with weight ratio 0.8:1.8:The mixture of 1 composition.
Further include 0.8 part of 0.4 part of UV resistant agent and lubricant.
The ultra-violet absorber be by ultraviolet absorbent UV-531, ultra-violet absorber RMB and light stabilizer 744 with
Weight ratio 0.9:0.8:The mixture of 1 composition.
The lubricant is by oxidized polyethylene wax, pentaerythritol stearate and silicone with weight ratio 2.5:0.8:1 group
At mixture.
Embodiment 8
The present embodiment and above-described embodiment 3 the difference is that:
The halogen-free flame retardants is by poly cyanamid cyanurate, triphenyl phosphate, magnesium hydroxide and montmorillonite with weight ratio
1.5:1:1:The mixture of 0.6 composition.
The compatilizer is grafted by polypropylene grafted maleic anhydride and styrene-ethylene-butadiene-styrene copolymer
Maleic anhydride is with weight ratio 1.5:The mixture of 1 composition.
The antioxidant be by four [methylene -3,5- (di-t-butyl -4- hydroxy-phenies) propionic ester] pentaerythritol esters,
Three [2,4- di-tert-butyl-phenyls] phosphite esters and β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid n-octadecyl alcohol esters are with weight
Measure ratio 1:0.4:The mixture of 0.6 composition.
The smoke suppressant is by ferrocene, antimony oxide and zinc borate with weight ratio 1:2:The mixture of 1 composition.
Further include 1 part of 0.6 part of UV resistant agent and lubricant.
The ultra-violet absorber be by ultraviolet absorbent UV-531, ultra-violet absorber RMB and light stabilizer 744 with
Weight ratio 1:1:The mixture of 1 composition.
The lubricant is by oxidized polyethylene wax, pentaerythritol stearate and silicone with weight ratio 3:1:1 composition
Mixture.
Embodiment 9
The present embodiment and above-described embodiment 4 the difference is that:
The fire retardant is by decabromodiphenylethane and antimony oxide with weight ratio 8:The mixture of 2 compositions.
The compatilizer is grafted by polypropylene grafted maleic anhydride and styrene-ethylene-butadiene-styrene copolymer
Maleic anhydride is with weight ratio 1.8:The mixture of 1.2 compositions.
The antioxidant be by four [methylene -3,5- (di-t-butyl -4- hydroxy-phenies) propionic ester] pentaerythritol esters,
Three [2,4- di-tert-butyl-phenyls] phosphite esters and β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid n-octadecyl alcohol esters are with weight
Measure ratio 1:0.5:The mixture of 0.7 composition.
The smoke suppressant is by ferrocene, antimony oxide and zinc borate with weight ratio 1.2:2.2:The mixture of 1 composition.
Further include 1.2 parts of 0.8 part of UV resistant agent and lubricant.
The ultra-violet absorber be by ultraviolet absorbent UV-531, ultra-violet absorber RMB and light stabilizer 744 with
Weight ratio 1.1:1.2:The mixture of 1 composition.
The lubricant is by oxidized polyethylene wax, pentaerythritol stearate and silicone with weight ratio 3.5:1.2:1 group
At mixture.
Embodiment 10
The present embodiment and above-described embodiment 5 the difference is that:
The halogen-free flame retardants is by poly cyanamid cyanurate, triphenyl phosphate, magnesium hydroxide and montmorillonite with weight ratio
2:1.2:1:The mixture of 0.8 composition.
The compatilizer is grafted by polypropylene grafted maleic anhydride and styrene-ethylene-butadiene-styrene copolymer
Maleic anhydride is with weight ratio 2:The mixture of 1.5 compositions.
The antioxidant be by four [methylene -3,5- (di-t-butyl -4- hydroxy-phenies) propionic ester] pentaerythritol esters,
Three [2,4- di-tert-butyl-phenyls] phosphite esters and β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid n-octadecyl alcohol esters are with weight
Measure ratio 1:0.6:The mixture of 0.8 composition.
The smoke suppressant is by ferrocene, antimony oxide and zinc borate with weight ratio 1.5:2.5:The mixture of 1 composition.
Further include 1.5 parts of 1.0 parts of UV resistant agent and lubricant.
The ultra-violet absorber be by ultraviolet absorbent UV-531, ultra-violet absorber RMB and light stabilizer 744 with
Weight ratio 1.2:1.5:The mixture of 1 composition.
The lubricant is by oxidized polyethylene wax, pentaerythritol stearate and silicone with weight ratio 4:1.5:1 composition
Mixture.
TPE cable insulating materials or protective cover material produced by the present invention have electro-magnetic screen function, shield effectiveness SE values can be with
Reach 17-50db, and flame retardant effect is excellent, single vertical combustion testing can reach V0 grades, and intensity is high, and tensile strength can reach
To 17MPa or more, flexibility is good, and elongation at break is high, and elongation at break can reach 470% or more, excellent in mechanical performance.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other manner,
Any obvious replacement is not departed under the premise of present inventive concept within protection scope of the present invention.