A kind of ceramic fireproof cable material of polyolefin and preparation method thereofTechnical field
The present invention relates to cable material technical field, particularly a kind of pottery magnetization fireproof cable material of polyolefin and system thereofPreparation Method.
Background technology
Along with sharply increasing of urban population, skyscraper, hotel, large supermarket, hospital, station, airport are continuousIncreasing, subway, tunnel and large-scale place of public amusement, public transit facility also sharply increase, and the importance of security against fire is convexReveal to come；The most in the case of fire, ensure the unimpeded of electric power and communication within a certain period of time, win to greatest extentValuable time, reduce the injures and deaths of personnel and the loss of lives and properties, be the problems constantly explored of people.
At present, fireproof electric wire cable both domestic and external uses traditional magnesium oxide mineral insulation cable and mica tape mostlyThe fire-resisting cable being wound around；Cable needs the equipment that import is special, and price is the most expensive, and fund input is big.It addition, conventional mineralThe outer jacket of insulation fireproof cable is that copper pipe produces through special pressure drawing process, and its product is costly on cost,Limit its promoted extension.Tradition fireproof cable is during production and processing, transport, line arrangement installation and use etc. simultaneouslyProperty requirement, cause it to be difficult to large-scale universal use, particularly at civil buildings etc..And be wound around by mica tapeFireproof cable in process of production, needs multi-lay winding, and mica tape exists the situation of the easy moisture absorption simultaneously, in existing production workUnder the conditions of skill, often result in defect at seam crossing, mica tape embrittlement after ablation, easily come off, fireproof time actually usedEffect is not fine, it is difficult to ensure communication, electric power in the case of fire safe and smooth.
In recent years, market occurring a kind of Ceramic silicon rubber, there is the defect that physical and mechanical properties is the best in this product, withTime the anti-wear performance of Ceramic silicon rubber and electrical insulation capability be not fine, use generally as fire protective lining, limit it anti-Range on fire fire-resisting cable.Ceramic silicon rubber when mixing must special mixing facilities, elastomeric compound can not carry out pelletize orTabletting；Simultaneously during extrusion operation, there is time-consuming inefficient situation.
Therefore study novel pottery magnetization fireproof cable material of polyolefin and be extremely necessary.
Summary of the invention
An object of the present invention is to overcome the deficiencies in the prior art, and provides a kind of pottery magnetization fireproof polyolefin electricityCable material, expensive to solve existing fireproof construction of cable complexity, mounting and installation is more difficult, causes its range to be subject toProblem to the very day of one's doom.
The technical scheme realizing above-mentioned purpose of the present invention is: a kind of pottery magnetization fireproof cable material of polyolefin, Qi ZhongsuoParts by weight containing component and each component are as follows:
Ethylene-vinyl ethyl acetate rubber 100～120 parts, zinc oxide 5～10 parts, age resistor 3～5 parts, lubricant 0.5～1.5 parts, ceramic fire retardant 8～25 parts, reactive-type flame retardant 140～180 parts, Firebrake ZB 5～10 parts, processing aid 5～15Part, silane coupler 0.5～2 parts, assistant crosslinking agent 1～1.5 parts, peroxide cross-linking agent 3～5 parts.
The further technical scheme of the present invention is: it also includes ceramic fire retardant 8～25 parts.
The further technical scheme of the present invention is: the VA content in ethylene-vinyl ethyl acetate rubber is 40%～80%.
The two of the purpose of the present invention are to overcome the deficiencies in the prior art, and provide a kind of pottery magnetization fireproof polyolefin electricityThe preparation method of cable material, expensive to solve existing fireproof construction of cable complexity, mounting and installation is more difficult, causes itRange is by the problem of the very day of one's doom.
The technical scheme realizing above-mentioned purpose of the present invention is: a kind of prepare above-mentioned pottery magnetization fireproof polyolefin cableThe method of material, comprises the steps:
S01, carries out dispensing by the parts by weight of each component in material；
S02, by ethylene-vinyl ethyl acetate rubber, zinc oxide, age resistor and lubricant put into mixer mixing 2～3min, controls the room temperature of banbury between 90～120 DEG C；
S03, then by ceramic fire retardant, reactive-type flame retardant, silane coupler and processing aid put into mixer mixing 2～4min, controls the room temperature of banbury between 100～130 DEG C；
S04, finally by assistant crosslinking agent and peroxide cross-linking agent input banbury mixing 1～1.5min, controls after adding sulfurThe room temperature of banbury processed is at 90～110 DEG C；
S05, discharges mixing uniform sizing material from banbury, beats triangle bag, Bao Tong by mill, then pass through calenderCalendering film-making, i.e. obtains pottery magnetization fireproof cable material of polyolefin.
The present invention compared with prior art has the advantage that
1, the ceramic fire retardant used in pottery magnetization fireproof cable material of polyolefin is as ethylene-vinyl acetic acid secondThe fireproof functional material of ester rubber, ceramic fire retardant 1% dehydration temperaturre is up to more than 290 DEG C, mixing at polymerRefining and extrusion temperature stability inferior can be good.Carbon knot is embodied into during due to the ceramic fire retardant sintering when 550～700 DEG CShell performance, initially forms ceramised layer, to pressing down cigarette and suppressing ashes combustion efficiency especially good.Meanwhile, to its physical property and electricityPerformance is without bad impact.
2, the processing aid used in pottery magnetization fireproof cable material of polyolefin is low temperature plasticizer, and its melting temperature isRelatively low, still there is good flow behavior when-50 DEG C, low-volatile performance makes ethylene-vinyl ethyl acetate rubber have relativelyLow hardness, finished cable has excellent low-temperature flexibility performance and good physical and mechanical properties.Boiling due to processing aidPoint, more than 240 DEG C (1.20kPa), enables the Environment-friendlyflame-retardant flame-retardant cable material after sulfuration to bear higher aging temperature, finished cableCan long-term work in the environment of 150 DEG C.
3, ethylene-vinyl ethyl acetate rubber is owing to introducing propylene monomer and Third monomer in ethylene molecule chain, fromAnd reduce the degree of crystallinity of ethylene so that it is there is the elasticity as good flexibility and rubber, still be able to have at-60 DEG C preferablyPliability, the transparency and lustrous surface property are good, and chemical stability is good, and aging resistance and ozone resistance are good.
4, active fire retardant or reactive hydrogen magnesium oxide: active aluminium hydroxide or reactive hydrogen magnesium oxide as addition type withoutHalogen presses down cigarette, fire proofing, is characterized in that addition is big, good flame retardation effect, low cost, improves the arc resistant of material wellProperty, strengthen impact strength and flexural strength, be up to the present to be best suitable for the reinforcement and filler material that polyolefine material usesOne of.
Active aluminium hydroxide or reactive hydrogen mgo surface are long-pending relatively big, and mobile performance is excellent, even particle size distribution, stabilityGood, do not produce corrosive gas.Good dispersion in polyolefine material, when addition is more, is not susceptible to bend blushing.It is used in polyolefine material, non-volatile, do not ooze out, can be retained in for a long time in polyolefine material.Have with other many kinds of substancesThe good compatibility.
In the present invention, reactive-type flame retardant Main Function is as fire retardant, also serves as reinforcing agent simultaneously.
Below in conjunction with embodiment, the invention will be further described.
Detailed description of the invention
Embodiment 1:
A kind of pottery magnetization fireproof cable material of polyolefin, the parts by weight of component contained therein and each component are as follows:
Ethylene-vinyl ethyl acetate rubber 100 parts, zinc oxide 5 parts, 3 parts of age resistor, lubricant 1 part, ceramic fire retardant10 parts, Firebrake ZB 5 parts, colour black 3 parts, reactive-type flame retardant 150 parts, processing aid 5 parts, silane coupler 1 part, assistant crosslinking agent1 part, peroxide cross-linking agent 3 parts.
Embodiment 2:
A kind of pottery magnetization fireproof cable material of polyolefin, the parts by weight of component contained therein and each component are as follows:
Ethylene-vinyl ethyl acetate rubber 110 parts, zinc oxide 8 parts, 3.5 parts of age resistor, lubricant 1.5 parts, ceramic hindersCombustion agent 15 parts, Firebrake ZB 8 parts, colour black 5 parts, reactive-type flame retardant 170 parts, processing aid 8 parts, silane coupler 1.5 parts, helpsCross-linking agent 1 part, peroxide cross-linking agent 3.5 parts.
Embodiment 3:
A kind of pottery magnetization fireproof cable material of polyolefin, the parts by weight of component contained therein and each component are as follows:
Ethylene-vinyl ethyl acetate rubber 120 parts, zinc oxide 10 parts, 3.5 parts of age resistor, lubricant 1.5 parts, ceramicFire retardant 25 parts, Firebrake ZB 8 parts, colour black 5 parts, reactive-type flame retardant 180 parts, processing aid 12 parts, silane coupler 2 parts,Assistant crosslinking agent 1.5 parts, peroxide cross-linking agent 4 parts.
In above-described embodiment, assistant crosslinking agent and peroxide cross-linking agent do not do concrete restriction, can use various suitable helpingCross-linking agent and peroxide cross-linking agent, as long as not to purpose of the present invention output harmful effect.Assistant crosslinking agent such as TAC,TAIC, HVA-2 etc., peroxide cross-linking agent such as DCP, tasteless DCP, double 25 etc..
In above-described embodiment, concrete restriction is not done in lubricant combustion agent, can use various suitable lubricant, if the most rightPurpose of the present invention output harmful effect.Such as zinc stearate, barium stearate, Tissuemat E etc..
In above-described embodiment, age resistor does not does concrete restriction, can use various suitable age resistor, as long as not to thisBright purpose output harmful effect.As anti-aging agent RD, MB, 445 etc.
In above-described embodiment, processing aid does not does concrete restriction, can use various suitable processing aid, if the most rightPurpose of the present invention output harmful effect.Such as DOA, DOS, ATBC etc..
The preparation method of the pottery magnetization fireproof cable material of polyolefin in above-described embodiment is as follows:
S01, carries out dispensing by the parts by weight of each component in material；
S02, puts into ethylene-vinyl ethyl acetate rubber, zinc oxide, age resistor, lubricant, Firebrake ZB and assistant crosslinking agentMixer mixing 2～3min, controls the room temperature of banbury between 100～130 DEG C；
S03, then colour black, ceramic fire retardant, reactive-type flame retardant, silane coupler and processing aid are put into banburyingMachine mixing 2～4min, controls the room temperature of banbury between 100～130 DEG C；
S04, finally puts in banbury mixing 0.5～1.5min by peroxide cross-linking agent, controls banbury after adding sulfurRoom temperature at 80～100 DEG C；
S05, discharges mixing uniform sizing material from banbury, beats triangle bag, Bao Tong by mill, then pass through calenderCalendering film-making, i.e. obtains environment-friendly flame retardant cable material.
Use the environment-friendly flame retardant CABLE MATERIALS that above-mentioned preparation method produces, carry out air oven aging test, RM902 andIRM903 degradation, oxygen index (OI) test, conductivity test, poison exponent test, light transmission test, crust are tested with existingEnvironment-friendlyflame-retardant flame-retardant cable material technology correction data is as shown in table 1.
Table 1:
As can be seen from Table 1, the pottery magnetization fireproof cable material of polyolefin of the present invention has good fireproofEnergy, oil resistance and physical and mechanical properties, be particularly well suited for use in the place prevented fires, requirement of explosion proof is higher.
Ceramic polyolefin is fire-fighting, fire prevention, fire-resistant offer one new approaches new method, particularly at wires and cables industryThe application of aspect, prospect is boundless, provides a kind of new design concept for fireproof cable, breaks through conventional fireproof cableThe limitation that production technique structure is complicated, economizes on resources reduction cost for Novel fireproof fire-resisting cable, carries out being widely popularized offerPrecondition and solid foundation.
Fireproofing cable material without halide prior art is:
Ethylene-vinyl ethyl acetate rubber 100 parts, zinc oxide 8 parts, 3 parts of age resistor, lubricant 1 part, Firebrake ZB 8 parts, colorElement carbon black 3 parts, reactive-type flame retardant 150 parts, processing aid 5 parts, silane coupler 1 part, assistant crosslinking agent 1 part, peroxide crosslinkingAgent 3 parts.