CN104200880A - Low-smoke zero-halogen high-flame-retardance EVA electric wire-cable, and preparation method for same - Google Patents
Low-smoke zero-halogen high-flame-retardance EVA electric wire-cable, and preparation method for same Download PDFInfo
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- CN104200880A CN104200880A CN201410444085.2A CN201410444085A CN104200880A CN 104200880 A CN104200880 A CN 104200880A CN 201410444085 A CN201410444085 A CN 201410444085A CN 104200880 A CN104200880 A CN 104200880A
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Abstract
The invention provides a low-smoke zero-halogen high-flame-retardance EVA electric wire-cable. The low-smoke zero-halogen high-flame-retardance EVA electric wire-cable comprises conductors, wherein a shield layer is arranged outside each conductor; a flame-retardance EVA insulation layer is arranged outside the shield layer; a fire-resistance layer is arranged outside the flame-retardance EVA insulation layer; an oxygen isolation layer is arranged outside the fire-resistance layer; a rock wool rope is filled among the conductors; a flame-retardance tape is arranged outside of the whole conductors and rock wool ropes; an inner flame-retardance EVA layer is arranged outside the flame-retardance tape; an armour layer is arranged outside the inner flame-retardance EVA layer, an outer flame-retardance EVA layer is arranged outside the armour layer; an anti-corrosion layer is arranged outside the outer flame-retardance EVA layer; a high-temperature-resistant layer is arranged outside the anti-corrosion layer; an ultraviolet-proof layer is coated outside the high-temperature-resistant layer. The invention further provides a preparation method for the electric wire-cable. The flame-retardance EVA insulation layers, the fire-resistance layers, the rock wool ropes, the inner flame-retardance EVA layer and the outer flame-retardance EVA layer of the electric wire-cable provided by the invention are arranged in a multiple manner, so as to obtain the low-smoke zero-halogen high-flame-retardance EVA electric wire-cable provided by the invention.
Description
Technical field
The present invention relates to a kind of electric wire and preparation method thereof, be specifically related to a kind of low-smoke bittern-free highly fire-proof EVA electric wire and preparation method thereof.
Background technology
Electric wire is a kind of in order to transmit electricity (magnetic) energy, information and the wire product of realizing electromagnetic energy conversion.Electric wire, as the main carriers of electric power transfer, is widely used in the aspects such as appliance equipment, illuminating line, household electrical appliance, and the quality of its quality directly has influence on project quality and consumer's the security of the lives and property.Although wires and cables industry is a supporting industry just, in occupation of the output value of Chinese electrician trade 1/4.Its product category is numerous, and range of application is very extensive, relates to the industries such as electric power, building, communication, manufacture, all closely related with each department of national economy.Electric wire is also called as national economy " artery " and " nerve ", the various motors of transmission of electric energy, transmission of information and manufacture, instrument, instrument, realizing the indispensable basic equipment of electromagnetic energy conversion, is necessary basic product in following electrification, informationized society.
Current wires and cables industry is in the face of the constantly derivative product making new advances of special occasions demand, as fire-resistant cable, flame-retardant cable, low smoke and zero halogen/low-smoke low-halogen cable, termite-proof, anti-mouse cable, oil resistant/cold-resistant/heatproof/wear-resisting cable, medical/agricultural/mining cable, thin-walled electric wire etc.
Along with the raising of people's awareness of safety, people are more and more higher to the performance requirement such as anti-flammability, fire resistance of electric wire, and high flame-retardant electric wire and cable is the emphasis that current people relatively pay close attention to.
In many large-scale public arena breaking out of fire accidents, because sucking, electric wire (high polymer) discharges the reason of most of personnel's death in the time burning, corrosive and poisonous dense smoke gas suffocates.Wire cable material is carried out to fire-retardant and low cigarette processing, and oneself fundamentally prevents from and reduces fire occurring through being acknowledged as, and reduces the Important Action of people's life and property loss.
Current electric wire comprises the multiple electric wires such as PVC, PE, PP from material point.PVC material has good mechanical and physical performance, pliability, chemical reagent-resistant performance, and low price, and processing characteristics excellence, be widely used on electric wire.But, in PVC, contain halogen element, therefore, it is discharge, corrosive and poisonous gas in the time of burning.At present, employing other materials gradually replaces PVC.Electric wire is at when burning dense smoke gas that discharge, corrosive and poisonous and suffocating, be not only the resin of its main body composition as contained halogen element in PVC, also comprise some halogen containing flame-retardants of its use.People, in order to improve the anti-flammability of electric wire, conventionally can in its material, add some fire retardants, and traditionally, these fire retardants are all halogen-containing materials.Research shows, halogen containing flame-retardant (HFR) is harmful to life and environment, and because legislation limits the use of these materials, final goal is the use that stops most of these series products.For example, deca-BDE is a kind of HFR, and European Union has banned use of this material.
Ethylene-vinyl acetate copolymer (EVA), it has good flexibility, resistance to impact, environmental stress crack resistance in wider temperature range, as CABLE MATERIALS matrix, it is carried out to halogen-free flameproof using EVA, and the mechanical property of improving fire-retardant rear CABLE MATERIALS makes its technical property requirements that meets low-smoke zero-halogen flame-retardant cable sheath, there is very large value for applying of fireproofing cable material without halide.
For socioeconomic development, also, for protection of the environment and people's property safety and healthy, be necessary to develop a kind of low-smoke bittern-free highly fire-proof EVA electric wire.
Summary of the invention
Goal of the invention: the object of the invention is, in order to solve the deficiencies in the prior art, provides a kind of low-smoke bittern-free highly fire-proof EVA electric wire and preparation method thereof.
Technical scheme: in order to realize above object, the present invention adopts following technical scheme:
A kind of low-smoke bittern-free highly fire-proof EVA electric wire, comprise conductor, described conductor outside is provided with screen, described screen outside is provided with fire-retardant EVA insulating barrier, described fire-retardant EVA insulating barrier outside is provided with flame retardant coating, described flame retardant coating outside is provided with oxygen barrier layer, between described conductor, be filled with mineral wool rope, described whole conductor and mineral wool rope outside are provided with inhibiting tape, described inhibiting tape outside is provided with interior fire-retardant EVA layer, described interior fire-retardant EVA layer outside is provided with armour, described armour outside is provided with outer fire-retardant EVA layer, described outer fire-retardant EVA layer outside is provided with anticorrosive coat, described anticorrosive coat outside is provided with high-temperature-resistant layer, described high-temperature-resistant layer outside is coated with ultraviolet resistant layer, described fire-retardant EVA insulating barrier, interior fire-retardant EVA layer and outer fire-retardant EVA layer are all fire-retardant EVA resin beds, are all mainly made up of the material of following mass percent:
EVA resin: 100 parts;
Composite flame-retardant agent: 80-90 part;
Ethylene propylene diene rubber EPDM:20-25 part; Ethylene propylene diene rubber has the advantages such as superior electrical insulating property, elasticity, resistance to ag(e)ing, corrosion resistance, resistance to wear, oil resistance, and environmental protection, adds after ethylene propylene diene rubber, can strengthen significantly the mechanical property of product entirety, especially its hot strength;
Polypropylene fibre: 4-6 part; Can improve impact resistance and the toughness of product;
Anti-impact modifier: 3-5 part;
Plasticizer: 8-10 part;
Stabilizer: 2-3 part;
Phase flux: 5-10 part;
Lubricant: 3.5-4.5 part;
Coupling agent: 1.5-2.5 part;
Antismoke agent: 0.5-1 part;
Age resistor: 0.5-1 part;
Promoter: 2-3 part;
Calcium carbonate: 5-8 part; There is flame retardant effect, improve the anti-flammability of product; Can also play the effect of curing agent, can promote curing reaction speed, reduce the effect in reaction time; Calcium carbonate itself, as a kind of inorganic filler, can also play and improve the resistance to wear of product and the effect of mechanical strength, and it is cheap, nontoxic simultaneously;
Sodium carboxymethylcellulose: 1-2 part; There is the effects such as bonding, thickening, enhancing, emulsification;
Colouring agent: 0.5-1 part.Electric wire of the present invention, the screen being provided with, specifically act as: the current ratio that cable passes through is larger, and electric current can produce magnetic field around, in order not affect other element, can be this electromagnetic-field-shielded in cable so add screen; Can play certain earth conductor cable cable price protection effect, if there is breakage in cable core, the electric current leaking can, along shielding laminar flow as ground network, play the effect of safeguard protection;
Be provided with fire-retardant EVA insulating barrier, compared to common insulating barrier, the anti-flammability of electric wire and electric property are more superior;
Be provided with flame retardant coating, strengthened the fire resistance of every independent conductor, thereby the fire resistance of electric wire entirety is strengthened, its safety in utilization is strengthened;
Be provided with oxygen barrier layer, completely cut off entering of oxygen, can play to a certain extent fire-retardant effect (burning need to be carried out under the condition of aerobic), strengthened the anti-flammability of cable, its safety in utilization is strengthened;
Mineral wool rope, has good fire resistance, has improved the anti-flammability of electric wire;
Inhibiting tape, to electric wire, the overall anti-flammability including conductor and filler has played guarantee, conventionally adopts the halogen-free flameproof band of selling on the market;
Interior fire-retardant EVA layer and outer fire-retardant EVA layer, double shielding, double-deck fire-retardant, in further strengthening the protection of electric wire, further strengthen the anti-flammability of electric wire;
Fire-retardant EVA insulating barrier, interior fire-retardant EVA layer and outer fire-retardant EVA layer, all take EVA resin to make main body composition, further increased impact resistance, mechanical performance, chemical stability of product etc.;
Anticorrosive coat, has strengthened the anti-corrosive properties of electric wire, extends its useful life;
High-temperature-resistant layer, has strengthened the heat-resisting quantity of cable, and its safety in utilization is strengthened;
Ultraviolet resistant layer, strengthens its anti-ultraviolet function, avoids aging because of ultraviolet ray irradiation, extends its useful life;
Sandwich construction design, makes electric wire of the present invention have good anti-flammability, heat-resisting quantity, anti-corrosive properties, anti-uv, fail safe etc., makes the overall performance of electric wire be far longer than common electric wire.
Described anti-impact modifier is methacrylate-butadiene one styrol copolymer; Methacrylate-butadiene one styrol copolymer is that MBS is a kind of novel high polymer material, adopts emulsion grafting polymerization method to be prepared from by methyl methacrylate (M), butadiene (B) and styrene (S).This resin has typical nucleocapsid structure in submicroscopic form, and core is the rubber phase globose nucleus that a diameter is 10～100 nm, and outside is the shell of styrene and methyl methacrylate composition.This special construction of MBS has been given the shock resistance of goods excellences.While adding MBS resin in the present invention, can make the impact strength of product improve 4-15 doubly, also can improve cold resistance and the processing fluidity of product simultaneously, and can keep the original physicochemical property of its main component PE;
Described plasticizer is di-n-octyl sebacate; The plasticizing effect of electric wire is strengthened, also make its pliability strengthen, be more prone to processing, less expensive simultaneously, and nontoxic;
Described stabilizer is that stabilizer is the mixture that calcium-zinc composite stabilizing agent and pentaerythrite composition by weight ratio are 1:2; Add stabilizer can make product property more stable, prevent its decomposition, aging, calcium-zinc composite stabilizing agent is compared to stabilizers such as some other metallic lead classes simultaneously, not only stablizing effect is good, also nontoxic, environmental protection simultaneously, after mixing with pentaerythrite, its stablizing effect can be further enhanced;
Described phase flux is maleic anhydride grafted polyethylene PE-g-MAH; Phase flux can improve the compatibility of material and the dispersiveness of filler greatly, thereby improve mechanical mechanics property, hot property, the colorability that can significantly strengthen product, improve processing characteristics, shock resistance, reduction water absorption rate, the raising dimensional stability of product;
Described lubricant is the mixture that paraffin oil and paraffin composition by weight ratio are 1:2; Paraffin oil and paraffin are all good lubricants, while or a kind of softening agent, can reduce viscosity, being convenient to materials processing produces, the production efficiency that so not only can propose materials processing, reduces production costs, and also makes the chemical-resistant resistance ability of material better simultaneously, in the time that both ratios are 1:2, its maximum effect;
Described coupling agent is vinyl three tert-butyl peroxide silane; Can significantly improve thermal endurance, anti-flammability, solvent resistance, mechanical strength and the electrical property etc. of product;
Described antismoke agent is that mol ratio is Sb
2o
3: MoO
3the mixture of=1:1; Can eliminate or reduce smog and pernicious gas that material produces in combustion process, add appropriate antismoke agent, when can calamity significantly reducing the amount of being fuming in combustion process, improve anti-flammability and the oxygen index of material, environmental protection simultaneously;
Described age resistor is antioxidant 264; Prevent from or suppress factors disrupt product properties such as oxygen, heat, light, ozone, mechanical stress, heavy metal ion, extend goods storing and useful life;
Described promoter is accelerator NS; Can promote reaction speed, can shorten cure time or reduce curing temperature, reduce the physical and mechanical properties of vulcanizing agent consumption and raising goods etc., accelerator NS is a kind of material of environment-protecting asepsis simultaneously;
Described colouring agent is titanium dioxide or carbon black; Titanium dioxide not only can be used as a kind of white color agents, and still good ultraviolet (UV) resistant agent, adds titanium dioxide to make material on painted basis, can also make material have good weatherability simultaneously; Carbon black is conventional black pigment, and low price also has UV protection (anti-aging) effect to product in addition.
Described composite flame-retardant agent is the compound of tricresyl phosphate TCP, hydrotalcite LDHs and aluminium hydroxide ATH.The compound flame retardant of tricresyl phosphate TCP, hydrotalcite LDHs and aluminium hydroxide ATH, compared to wherein single fire retardant, after being added in EVA material, not only anti-flammability is more remarkable, also greatly improved the mechanical property of product, the while does not affect the physical properties such as the weatherability of product itself simultaneously.
In described composite flame-retardant agent, tricresyl phosphate TCP, hydrotalcite LDHs and aluminium hydroxide ATH are 20:(30-35 by the composite ratio of mass fraction): (30-35).Improve the most remarkable at this composite ratio in anti-flammability, mechanical property.
The thickness of described fire-retardant EVA insulating barrier is 1.2-2.4mm.
Described flame retardant coating is mica layer, and the thickness of described flame retardant coating is 1.5-2.5mm; Mica layer, fire resistance is superior, environmental protection simultaneously; Described oxygen barrier layer is HDPE layer, and the thickness of described oxygen barrier layer is 0.5-0.8mm.Non-hygroscopic and the steam-preventing that had of HDPE, can starvation, has fabulous impact resistance simultaneously.
The thickness of described interior fire-retardant EVA layer is 1.1-2mm; The thickness of described outer fire-retardant EVA layer is 2.5-3.5mm.
Described anticorrosive coat is polytetrafluoroethylene floor, and the thickness of described anticorrosive coat is 0.8-1mm; Polytetrafluoroethylene has highly corrosion resistant ability, and chemical property is highly stable, hydrochloric acid, sulfuric acid, nitric acid and the chloroazotic acid of ability boiling, and the also various concentrated bases of ability and organic solvent, DEG C-260 DEG C, Applicable temperature-200, decomposition temperature is 415 DEG C;
Described high-temperature-resistant layer is polyimide layer, and the thickness of described high-temperature-resistant layer is 0.5-0.8mm.Polyimides can long-term work temperature more than 350 DEG C, short-term can reach 450 DEG C, heat-resisting quantity is splendid.
Described ultraviolet resistant layer is nano titanium oxide compound acrylic ester dope layer, described nano titanium oxide compound acrylic ester dope layer comprises the nano titanium oxide of mass fraction 5.5-6%, all the other are acrylate, and the thickness of described ultraviolet resistant layer is 20-25 μ m.Adopt this coating, can shield 99% ultraviolet ray, prevent that electric wire is aging, extend its useful life.
The quantity of described conductor has 2 at least, the screen that described conductor and its are outside coated), fire-retardant EVA insulating barrier, flame retardant coating, oxygen barrier layer form an entirety, symmetrical is distributed in described inhibiting tape.
A preparation method for low-smoke bittern-free highly fire-proof EVA electric wire, mainly comprises the CABLE MATERIALS preparation of fire-retardant EVA insulating barrier, interior fire-retardant EVA layer and outer fire-retardant EVA layer, and three layers of CABLE MATERIALS used are consistent, and concrete preparation method is as follows:
Prepare burden by described formula, the material preparing adds melt blending in two roller mills, mixing temperature is 120-130 DEG C, incorporation time is 8-15 minute, after blend evenly, cuts out for lower, then transfer to compression molding on vulcanizing press, forming temperature is 130 DEG C, and the time is 8-10 minute, can make the CABLE MATERIALS of needed fire-retardant EVA insulating barrier, interior fire-retardant EVA layer and outer fire-retardant EVA layer.The strict forming temperature of controlling, excess Temperature, can cause product to decompose, and causes product surface coarse and occur a large amount of pores, and temperature is too low, and product can not plastify completely, is difficult to moulding, only at this temperature, the surface quality of guarantee product.
Beneficial effect: low-smoke bittern-free highly fire-proof EVA electric wire provided by the invention and preparation method thereof compared with prior art, has the following advantages:
1, electric wire of the present invention, the fire-retardant EVA insulating barrier being provided with, flame retardant coating, mineral wool rope, interior fire-retardant EVA layer, outer fire-retardant EVA layer, multiple setting, makes the anti-flammability of this product far beyond like product; Be all Halogen material with the material of flame-retardant layer, making of the present invention is low-smoke bittern-free highly fire-proof EVA electric wire simultaneously;
2, electric wire of the present invention, also be provided with screen, oxygen barrier layer, anticorrosive coat, high-temperature-resistant layer, ultraviolet resistant layer, make the shield effectiveness of this product superior, signal propagates stable, have good thermal endurance, anti-corrosive properties, weatherability and anti-uv etc., be the electric wire that a kind of combination property is superior simultaneously;
3, electric wire of the present invention, insulating barrier, interior fire-retardant EVA layer, outer fire-retardant EVA layer, all adopting EVA is main material, in the anti-flammability while of improving product, also utilize the character of EVA itself, thereby further increase impact resistance, the machine electric wire of the present invention of product, tool performance, chemical stability etc.;
4, electric wire of the present invention, insulating barrier, interior fire-retardant EVA layer, outer fire-retardant EVA layer, employing EVA is main material, add other some auxiliary agents simultaneously, such as plasticizer, stabilizer, lubricant etc., make the performance colleague property compared of the each side such as insulating properties, physical and mechanical properties, elasticity, resistance to ag(e)ing, corrosion resistance, anti-flammability of wire cable material itself all more perfect, good;
5, electric wire of the present invention, insulating barrier,, interior fire-retardant EVA layer, outer fire-retardant EVA layer, adopting EVA resin is main material, add the composite flame-retardant agent of tricresyl phosphate TCP, hydrotalcite LDHs and aluminium hydroxide ATH simultaneously, ensureing on the impregnable basis of former EVA resin property, greatly strengthening anti-flammability and the mechanical property of product;
6, electric wire of the present invention, the colouring agent of selecting, also has UV protection (anti-aging) effect to product in addition;
7, electric wire of the present invention, is all ep-type material from the major ingredient EVA using to other auxiliary reagent, makes the environment-friendly type of final wire cable material better;
8, electric wire of the present invention, easy to prepare, and material therefor environmental protection is a kind of high performance electric wire of environment-friendly type;
9, electric wire of the present invention, preparation method, strict production control condition, makes the quality of product higher, and the easy easy enforcement of this preparation method simultaneously, is suitable for large-scale industrial production.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention;
In figure: fire-retardant EVA layer, 9-armour, the outer fire-retardant EVA layer of 10-, 11-anticorrosive coat, 12-high-temperature-resistant layer, 13-ultraviolet resistant layer in 1-conductor, 2-screen, the fire-retardant EVA insulating barrier of 3-, 4-flame retardant coating, 5-oxygen barrier layer, 6-mineral wool rope, 7-inhibiting tape, 8-.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail; but illustrate that protection scope of the present invention is not limited to the concrete scope of the present embodiment simultaneously; based on the embodiment in the present invention; those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
embodiment 1
A kind of low-smoke bittern-free highly fire-proof EVA electric wire, comprise 3 conductors 1, described conductor 1 outside is provided with screen 2, described screen 2 outsides are provided with fire-retardant EVA insulating barrier 3, described fire-retardant EVA insulating barrier 3 outsides are provided with flame retardant coating 4, described flame retardant coating 4 is mica layer, described flame retardant coating 4 outsides are provided with oxygen barrier layer 5, described oxygen barrier layer 5 is HDPE layer, between described conductor 1, be filled with mineral wool rope 6, described whole conductor 1 and mineral wool rope 6 outsides are provided with inhibiting tape 7, the screen 2 that described conductor 1 is outside coated with it, fire-retardant EVA insulating barrier 3, flame retardant coating 4, oxygen barrier layer 5 forms an entirety, symmetrical is distributed in described inhibiting tape 7, described inhibiting tape 7 outsides are provided with interior fire-retardant EVA layer 8, described interior fire-retardant EVA layer 8 outside are provided with armour 9, described armour 9 outsides are provided with outer fire-retardant EVA layer 10, described outer fire-retardant EVA layer 10 outside are provided with anticorrosive coat 11, described anticorrosive coat 11 is polytetrafluoroethylene floor, described anticorrosive coat 11 outsides are provided with high-temperature-resistant layer 12, described high-temperature-resistant layer 12 is polyimide layer, high-temperature-resistant layer 12 outsides are coated with ultraviolet resistant layer 13, described ultraviolet resistant layer 13 is nano titanium oxide compound acrylic ester dope layer, described nano titanium oxide compound acrylic ester dope layer comprises the nano titanium oxide of mass fraction 5.5%, all the other are acrylate, described fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10 are all fire-retardant EVA resin beds, are all mainly made up of the material of following mass percent:
EVA resin: 100 parts;
Composite flame-retardant agent: tricresyl phosphate: 20 parts; Hydrotalcite: 30 parts; Aluminium hydroxide: 30 parts;
Ethylene propylene diene rubber EPDM:21 part;
Polypropylene fibre: 4 parts;
Anti-impact modifier: methacrylate-butadiene one styrol copolymer: 3 parts;
Plasticizer: di-n-octyl sebacate: 8 parts;
Stabilizer: the mixture that calcium-zinc composite stabilizing agent and pentaerythrite composition by weight ratio are 1:2: 2 parts;
Phase flux: maleic anhydride grafted polyethylene PE-g-MAH:5 part;
Lubricant: the mixture that paraffin oil and paraffin composition by weight ratio are 1:2: 3.5 parts;
Coupling agent: vinyl three tert-butyl peroxide silane: 1.5 parts;
Antismoke agent: the mixture that mol ratio is Sb2O3:MoO3=1:1: 0.5 part;
Age resistor: antioxidant 264: 0.5 part;
Promoter: accelerator NS: 2 parts;
Calcium carbonate: 5 parts;
Sodium carboxymethylcellulose: 1 part;
Colouring agent: titanium dioxide or carbon black: 0.5 part.
The thickness of described fire-retardant EVA insulating barrier 3 is 1.2mm.
The thickness of described flame retardant coating 4 is 1.5mm.
The thickness of described oxygen barrier layer 5 is 0.5mm.
The thickness of described interior fire-retardant EVA layer 8 is 1.1mm.
The thickness of described outer fire-retardant EVA layer 10 is 2.5mm.
The thickness of described anticorrosive coat 11 is 0.8mm.
The thickness of described high-temperature-resistant layer 12 is 0.5mm.
The thickness of described ultraviolet resistant layer 13 is 20 μ m.
A preparation method for low-smoke bittern-free highly fire-proof EVA electric wire, mainly comprises the CABLE MATERIALS preparation of fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10, and three layers of CABLE MATERIALS used are consistent, and concrete preparation method is as follows:
Prepare burden by described formula, the material preparing adds melt blending in two roller mills, mixing temperature is 120 DEG C, incorporation time is 8 minutes, after blend evenly, cuts out for lower, then transfer to compression molding on vulcanizing press, forming temperature is 130 DEG C, and the time is 8 minutes, can make the CABLE MATERIALS of needed fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10.
embodiment 2
A kind of low-smoke bittern-free highly fire-proof EVA electric wire, comprise 3 conductors 1, described conductor 1 outside is provided with screen 2, described screen 2 outsides are provided with fire-retardant EVA insulating barrier 3, described fire-retardant EVA insulating barrier 3 outsides are provided with flame retardant coating 4, described flame retardant coating 4 is mica layer, described flame retardant coating 4 outsides are provided with oxygen barrier layer 5, described oxygen barrier layer 5 is HDPE layer, between described conductor 1, be filled with mineral wool rope 6, described whole conductor 1 and mineral wool rope 6 outsides are provided with inhibiting tape 7, the screen 2 that described conductor 1 is outside coated with it, fire-retardant EVA insulating barrier 3, flame retardant coating 4, oxygen barrier layer 5 forms an entirety, symmetrical is distributed in described inhibiting tape 7, described inhibiting tape 7 outsides are provided with interior fire-retardant EVA layer 8, described interior fire-retardant EVA layer 8 outside are provided with armour 9, described armour 9 outsides are provided with outer fire-retardant EVA layer 10, described outer fire-retardant EVA layer 10 outside are provided with anticorrosive coat 11, described anticorrosive coat 11 is polytetrafluoroethylene floor, described anticorrosive coat 11 outsides are provided with high-temperature-resistant layer 12, described high-temperature-resistant layer 12 is polyimide layer, high-temperature-resistant layer 12 outsides are coated with ultraviolet resistant layer 13, described ultraviolet resistant layer 13 is nano titanium oxide compound acrylic ester dope layer, described nano titanium oxide compound acrylic ester dope layer comprises the nano titanium oxide of mass fraction 5.8%, all the other are acrylate, described fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10 are all fire-retardant EVA resin beds, are all mainly made up of the material of following mass percent:
EVA resin: 100 parts;
Composite flame-retardant agent: tricresyl phosphate: 20 parts; Hydrotalcite: 33 parts; Aluminium hydroxide: 33 parts;
Ethylene propylene diene rubber EPDM:23 part;
Polypropylene fibre: 5 parts;
Anti-impact modifier: methacrylate-butadiene one styrol copolymer: 4 parts;
Plasticizer: di-n-octyl sebacate: 9 parts;
Stabilizer: the mixture that calcium-zinc composite stabilizing agent and pentaerythrite composition by weight ratio are 1:2: 2.5 parts;
Phase flux: maleic anhydride grafted polyethylene PE-g-MAH:7.5 part;
Lubricant: the mixture that paraffin oil and paraffin composition by weight ratio are 1:2: 4 parts;
Coupling agent: vinyl three tert-butyl peroxide silane: 2 parts;
Antismoke agent: the mixture that mol ratio is Sb2O3:MoO3=1:1: 0.8 part;
Age resistor: antioxidant 264: 0.8 part;
Promoter: accelerator NS: 2.5 parts;
Calcium carbonate: 6.5 parts;
Sodium carboxymethylcellulose: 1.5 parts;
Colouring agent: titanium dioxide or carbon black: 0.8 part.
The thickness of described fire-retardant EVA insulating barrier 3 is 1.8mm.
The thickness of described flame retardant coating 4 is 2mm.
The thickness of described oxygen barrier layer 5 is 0.7mm.
The thickness of described interior fire-retardant EVA layer 8 is 1.6mm.
The thickness of described outer fire-retardant EVA layer 10 is 3mm.
The thickness of described anticorrosive coat 11 is 0.9mm.
The thickness of described high-temperature-resistant layer 12 is 0.7mm.
The thickness of described ultraviolet resistant layer 13 is 23 μ m.
A preparation method for low-smoke bittern-free highly fire-proof EVA electric wire, mainly comprises the CABLE MATERIALS preparation of fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10, and three layers of CABLE MATERIALS used are consistent, and concrete preparation method is as follows:
Prepare burden by described formula, the material preparing adds melt blending in two roller mills, mixing temperature is 125 DEG C, incorporation time is 11 minutes, after blend evenly, cuts out for lower, then transfer to compression molding on vulcanizing press, forming temperature is 130 DEG C, and the time is 9 minutes, can make the CABLE MATERIALS of needed fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10.
embodiment 3
A kind of low-smoke bittern-free highly fire-proof EVA electric wire, comprise 3 conductors 1, described conductor 1 outside is provided with screen 2, described screen 2 outsides are provided with fire-retardant EVA insulating barrier 3, described fire-retardant EVA insulating barrier 3 outsides are provided with flame retardant coating 4, described flame retardant coating 4 is mica layer, described flame retardant coating 4 outsides are provided with oxygen barrier layer 5, described oxygen barrier layer 5 is HDPE layer, between described conductor 1, be filled with mineral wool rope 6, described whole conductor 1 and mineral wool rope 6 outsides are provided with inhibiting tape 7, the screen 2 that described conductor 1 is outside coated with it, fire-retardant EVA insulating barrier 3, flame retardant coating 4, oxygen barrier layer 5 forms an entirety, symmetrical is distributed in described inhibiting tape 7, described inhibiting tape 7 outsides are provided with interior fire-retardant EVA layer 8, described interior fire-retardant EVA layer 8 outside are provided with armour 9, described armour 9 outsides are provided with outer fire-retardant EVA layer 10, described outer fire-retardant EVA layer 10 outside are provided with anticorrosive coat 11, described anticorrosive coat 11 is polytetrafluoroethylene floor, described anticorrosive coat 11 outsides are provided with high-temperature-resistant layer 12, described high-temperature-resistant layer 12 is polyimide layer, high-temperature-resistant layer 12 outsides are coated with ultraviolet resistant layer 13, described ultraviolet resistant layer 13 is nano titanium oxide compound acrylic ester dope layer, described nano titanium oxide compound acrylic ester dope layer comprises the nano titanium oxide of mass fraction 6%, all the other are acrylate, described fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10 are all fire-retardant EVA resin beds, are all mainly made up of the material of following mass percent:
EVA resin: 100 parts;
Composite flame-retardant agent: tricresyl phosphate: 20 parts; Hydrotalcite: 35 parts; Aluminium hydroxide: 35 parts;
Ethylene propylene diene rubber EPDM:25 part;
Polypropylene fibre: 6 parts;
Anti-impact modifier: methacrylate-butadiene one styrol copolymer: 5 parts;
Plasticizer: di-n-octyl sebacate: 10 parts;
Stabilizer: the mixture that calcium-zinc composite stabilizing agent and pentaerythrite composition by weight ratio are 1:2: 3 parts;
Phase flux: maleic anhydride grafted polyethylene PE-g-MAH:10 part;
Lubricant: the mixture that paraffin oil and paraffin composition by weight ratio are 1:2: 4.5 parts;
Coupling agent: vinyl three tert-butyl peroxide silane: 2.5 parts;
Antismoke agent: the mixture that mol ratio is Sb2O3:MoO3=1:1: 1 part;
Age resistor: antioxidant 264: 1 part;
Promoter: accelerator NS: 3 parts;
Calcium carbonate: 8 parts;
Sodium carboxymethylcellulose: 2 parts;
Colouring agent: titanium dioxide or carbon black: 1 part.
The thickness of described fire-retardant EVA insulating barrier 3 is 2.4mm.
The thickness of described flame retardant coating 4 is 2.5mm.
The thickness of described oxygen barrier layer 5 is 0.8mm.
The thickness of described interior fire-retardant EVA layer 8 is 2mm.
The thickness of described outer fire-retardant EVA layer 10 is 3.5mm.
The thickness of described anticorrosive coat 11 is 1mm.
The thickness of described high-temperature-resistant layer 12 is 0.8mm.
The thickness of described ultraviolet resistant layer 13 is 25 μ m.
A preparation method for low-smoke bittern-free highly fire-proof EVA electric wire, mainly comprises the CABLE MATERIALS preparation of fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10, and three layers of CABLE MATERIALS used are consistent, and concrete preparation method is as follows:
Prepare burden by described formula, the material preparing adds melt blending in two roller mills, mixing temperature is 130 DEG C, incorporation time is 15 minutes, after blend evenly, cuts out for lower, then transfer to compression molding on vulcanizing press, forming temperature is 130 DEG C, and the time is 10 minutes, can make the CABLE MATERIALS of needed fire-retardant EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10.
The electric wire of above-described embodiment, EVA insulating barrier 3, interior fire-retardant EVA layer 8 and outer fire-retardant EVA layer 10 are all taking EVA as primary raw material, then add fire retardant, lubricant, stabilizer etc. auxiliary reagent, the electric wire of preparing like this, its anti-flammability, resistance to wear, mechanical-physical, anti-uv, heat-resisting quantity, anti-corrosive properties, the everyway comparative superiorities such as impact resistance, wherein in anti-flammability its oxygen index greatly about 48 left and right, the standard 36(that is greater than high flame retardant in general oxygen index >36 means to have high flame retardant, and oxygen index of the present invention is greatly about 50 left and right, be far longer than 36, this just illustrates that wire cable material of the present invention has splendid fire resistance), aspect mechanical-physical, its hot strength is at >20MPa, elongation at break >180%, be up to 280% left and right, its mechanical-physical is superior as can be seen here, the material simultaneously using in electric wire of the present invention is Halogen material, therefore electric wire of the present invention is a kind of low-smoke bittern-free highly fire-proof EVA electric wire.
Above-described embodiment is only explanation technical conceive of the present invention and feature, its objective is to allow to be familiar with these those skilled in the art and can to understand content of the present invention enforcement according to this, can not limit the scope of the invention with this.All equivalents that Spirit Essence has been done according to the present invention or modification, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. a low-smoke bittern-free highly fire-proof EVA electric wire, it is characterized in that: comprise conductor (1), described conductor (1) outside is provided with screen (2), described screen (2) outside is provided with fire-retardant EVA insulating barrier (3), described fire-retardant EVA insulating barrier (3) outside is provided with flame retardant coating (4), described flame retardant coating (4) outside is provided with oxygen barrier layer (5), between described conductor (1), be filled with mineral wool rope (6), described whole conductor (1) and mineral wool rope (6) outside are provided with inhibiting tape (7), described inhibiting tape (7) outside is provided with interior fire-retardant EVA layer (8), described interior fire-retardant EVA layer (8) outside is provided with armour (9), described armour (9) outside is provided with outer fire-retardant EVA layer (10), described outer fire-retardant EVA layer (10) outside is provided with anticorrosive coat (11), described anticorrosive coat (11) outside is provided with high-temperature-resistant layer (12), described high-temperature-resistant layer (12) outside is coated with ultraviolet resistant layer (13), described fire-retardant EVA insulating barrier (3), interior fire-retardant EVA layer (8) and outer fire-retardant EVA layer (10) are all fire-retardant EVA resin beds, are all mainly made up of the material of following mass percent:
EVA resin: 100 parts;
Composite flame-retardant agent: 80-90 part;
Ethylene propylene diene rubber EPDM:20-25 part;
Polypropylene fibre: 4-6 part;
Anti-impact modifier: 3-5 part;
Plasticizer: 8-10 part;
Stabilizer: 2-3 part;
Phase flux: 5-10 part;
Lubricant: 3.5-4.5 part;
Coupling agent: 1.5-2.5 part;
Antismoke agent: 0.5-1 part;
Age resistor: 0.5-1 part;
Promoter: 2-3 part;
Calcium carbonate: 5-8 part;
Sodium carboxymethylcellulose: 1-2 part;
Colouring agent: 0.5-1 part.
2. low-smoke bittern-free highly fire-proof EVA electric wire according to claim 1, is characterized in that: described anti-impact modifier is methacrylate-butadiene one styrol copolymer; Described plasticizer is di-n-octyl sebacate; Described stabilizer is that stabilizer is the mixture that calcium-zinc composite stabilizing agent and pentaerythrite composition by weight ratio are 1:2; Described phase flux is maleic anhydride grafted polyethylene PE-g-MAH; Described lubricant is the mixture that paraffin oil and paraffin composition by weight ratio are 1:2; Described coupling agent is vinyl three tert-butyl peroxide silane; Described antismoke agent is that mol ratio is the mixture of Sb2O3:MoO3=1:1; Described age resistor is antioxidant 264; Described promoter is accelerator NS; Described colouring agent is titanium dioxide or carbon black; Described composite flame-retardant agent is the compound of tricresyl phosphate TCP, hydrotalcite LDHs and aluminium hydroxide ATH.
3. low-smoke bittern-free highly fire-proof EVA electric wire according to claim 2, is characterized in that: in described composite flame-retardant agent, tricresyl phosphate TCP, hydrotalcite LDHs and aluminium hydroxide ATH are 20:(30-35 by the composite ratio of mass fraction): (30-35).
4. low-smoke bittern-free highly fire-proof EVA electric wire according to claim 1, is characterized in that: the thickness of described fire-retardant EVA insulating barrier (3) is 1.2-2.4mm.
5. low-smoke bittern-free highly fire-proof EVA electric wire according to claim 1, is characterized in that: described flame retardant coating (4) is mica layer, and the thickness of described flame retardant coating (4) is 1.5-2.5mm; Described oxygen barrier layer (5) is HDPE layer, and the thickness of described oxygen barrier layer (5) is 0.5-0.8mm.
6. low-smoke bittern-free highly fire-proof EVA electric wire according to claim 1, is characterized in that: the thickness of described interior fire-retardant EVA layer (8) is 1.1-2mm; The thickness of described outer fire-retardant EVA layer (10) is 2.5-3.5mm.
7. low-smoke bittern-free highly fire-proof EVA electric wire according to claim 1, is characterized in that: described anticorrosive coat (11) is polytetrafluoroethylene floor, and the thickness of described anticorrosive coat (11) is 0.8-1mm; Described high-temperature-resistant layer (12) is polyimide layer,, the thickness of described high-temperature-resistant layer (12) is 0.5-0.8mm.
8. low-smoke bittern-free highly fire-proof EVA electric wire according to claim 1, it is characterized in that: described ultraviolet resistant layer (13) is nano titanium oxide compound acrylic ester dope layer, described nano titanium oxide compound acrylic ester dope layer comprises the nano titanium oxide of mass fraction 5.5-6%, all the other are acrylate, and the thickness of described ultraviolet resistant layer (13) is 20-25 μ m.
9. low-smoke bittern-free highly fire-proof EVA electric wire according to claim 1, it is characterized in that: the quantity of described conductor (1) has 2 at least, described conductor (1) forms an entirety with its outside coated screen (2), fire-retardant EVA insulating barrier (3), flame retardant coating (4), oxygen barrier layer (5), and symmetrical is distributed in described inhibiting tape (7).
10. the preparation method of a low-smoke bittern-free highly fire-proof EVA electric wire as claimed in claim 1, it is characterized in that: mainly comprise the CABLE MATERIALS preparation of fire-retardant EVA insulating barrier (3), interior fire-retardant EVA layer (8) and outer fire-retardant EVA layer (10), three layers of CABLE MATERIALS used are consistent, and concrete preparation method is as follows:
Prepare burden by described formula, the material preparing adds melt blending in two roller mills, mixing temperature is 120-130 DEG C, incorporation time is 8-15 minute, after blend evenly, cuts out for lower, then transfer to compression molding on vulcanizing press, forming temperature is 130 DEG C, and the time is 8-10 minute, can make the CABLE MATERIALS of needed fire-retardant EVA insulating barrier (3), interior fire-retardant EVA layer (8) and outer fire-retardant EVA layer (10).
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| CN201410444085.2A CN104200880A (en) | 2014-09-03 | 2014-09-03 | Low-smoke zero-halogen high-flame-retardance EVA electric wire-cable, and preparation method for same |
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| CN104505156A (en) * | 2014-12-17 | 2015-04-08 | 常州八益电缆股份有限公司 | Cable used in containment of CAP1400 large pressurized water reactor nuclear power station |
| CN104910505A (en) * | 2015-06-19 | 2015-09-16 | 德州市鑫华润聚氨酯鞋材股份有限公司 | High-temperature-resistant low-shrinkage EVA (ethylene-vinyl acetate) and preparation method thereof |
| CN105400117A (en) * | 2015-11-23 | 2016-03-16 | 厦门理工学院 | Anti-dripping intumescent flame retardant PBS (poly(butylene succinate)) and preparation method thereof |
| CN105741957A (en) * | 2015-01-20 | 2016-07-06 | 王笑梅 | Aluminium alloy wire for cable, halogen-free flame-retardant thermoplastic elastomer cable material, and cable |
| CN108711470A (en) * | 2018-06-07 | 2018-10-26 | 安徽和义新能源汽车充电设备有限公司 | A kind of new-energy automobile charging cable |
| CN111489862A (en) * | 2019-01-29 | 2020-08-04 | 日立金属株式会社 | Communication cable |
| CN112397242A (en) * | 2019-08-15 | 2021-02-23 | 江苏亨通电力电缆有限公司 | Fire-resistant 1100 ℃ mineral low-voltage cable and preparation method thereof |
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| CN105741957A (en) * | 2015-01-20 | 2016-07-06 | 王笑梅 | Aluminium alloy wire for cable, halogen-free flame-retardant thermoplastic elastomer cable material, and cable |
| CN104910505A (en) * | 2015-06-19 | 2015-09-16 | 德州市鑫华润聚氨酯鞋材股份有限公司 | High-temperature-resistant low-shrinkage EVA (ethylene-vinyl acetate) and preparation method thereof |
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| CN105400117A (en) * | 2015-11-23 | 2016-03-16 | 厦门理工学院 | Anti-dripping intumescent flame retardant PBS (poly(butylene succinate)) and preparation method thereof |
| CN105400117B (en) * | 2015-11-23 | 2019-12-13 | 厦门理工学院 | anti-droplet expansion flame-retardant poly (butylene succinate) and preparation method thereof |
| CN108711470A (en) * | 2018-06-07 | 2018-10-26 | 安徽和义新能源汽车充电设备有限公司 | A kind of new-energy automobile charging cable |
| CN111489862A (en) * | 2019-01-29 | 2020-08-04 | 日立金属株式会社 | Communication cable |
| CN112397242A (en) * | 2019-08-15 | 2021-02-23 | 江苏亨通电力电缆有限公司 | Fire-resistant 1100 ℃ mineral low-voltage cable and preparation method thereof |
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