CN103102134A - Fireproof and flame retardant mineral compound filling material and cable containing the same - Google Patents
Fireproof and flame retardant mineral compound filling material and cable containing the same Download PDFInfo
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- CN103102134A CN103102134A CN2013100539489A CN201310053948A CN103102134A CN 103102134 A CN103102134 A CN 103102134A CN 2013100539489 A CN2013100539489 A CN 2013100539489A CN 201310053948 A CN201310053948 A CN 201310053948A CN 103102134 A CN103102134 A CN 103102134A
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Abstract
The invention relates to a fireproof and flame retardant mineral compound filling material for cables. The filling material comprises a silicon-containing binder; an inorganic flame retardant compound; and a mineral compound. The filling material also can include a silicate modifier, a silicate curing agent and a pigment. Being free of any flammable substance, the fireproof and flame-retardant mineral compound filling material provided in the invention has an excellent fireproof effect, can lose moisture and absorb a lot of heat so as to achieve the flame retardant effect. With good flexibility, the fireproof and flame retardant mineral compound filling material has no hazard to the nature after it is abandoned.
Description
Technical field
The present invention relates to a kind of mineral chemical combination stopping composition, especially, the present invention relates to a kind of for the fire-retardant mineral chemical combination of fireproofing of cable stopping composition.The invention still further relates to a kind of cable that contains this stopping composition.
Background technology
Along with the industrialization urbanization process is accelerated, all kinds of fire failures also frequently occur, and cause the massive losses of lives and properties.And along with the raising of fire-fighting consciousness, developed country must select fireproof cable according to different purposes at the electric distribution line of a part.Domestic power department is also promoted the use of fireproof cable in Highrise buildings and the public place of entertainment in city.
The insulation layer that contains mica tape, ceramic composite band is the main fire protection flame retarding structure of cable, and the chemical reaction of the ceramic by at high temperature reaches fireproofing of cable, prevents the short circuit of cable.
Fire-resistant wire and cable is when meeting with fire, except the burning up to 1200 degrees centigrade of flames has destroyed its insulating material, also have external mechanically shock (as the stone that falls down, template, steel plate etc.) and the injection of fire water, under this abominable fire hazard environment, fire-resistant wire and cable is the integrity of necessary holding circuit also.So the fire-resistant wire and cable of high request must be able to bear thermal-flame, shock, water and spray and penetrate three kinds of destructive tests.All three kinds of above-mentioned high requests, destructive environment have been embodied with detailed testing standard in IEC60331-32, British Standard BS3687 and U.S. DC2196 standard.
Traditional independent use fire-resistant isinglass belt can't satisfy above-mentioned requirement.
Spray the requirements of penetrating three kinds of destructive tests in order to be able to bear thermal-flame, shock, water, fireproof cable adopts packing material to improve at present, and common fireproof cable generally adopts polyvinyl chloride or crosslinked polyethylene.This cable is due to its constructional feature, and refractory temperature is low, and fire-resistant reliability is not strong.Also there is the glass yarn of employing to make stopping composition, but this stopping composition meeting ashing, cigarette when high-temp combustion.When fire occured, common fireproof control cable can't guarantee that circuit works on, and was difficult to strive for for escape and rescue time of more growing.
Summary of the invention
The purpose of this invention is to provide a kind of fire protection flame retarding mineral chemical combination stopping composition, another object of the present invention is to provide a kind of fireproof cable, fireproof cable contains above-mentioned fire protection flame retarding mineral chemical combination stopping composition, and this cable can bear thermal-flame, shock, water and spray and penetrate three kinds of destructive tests.
For achieving the above object:
A kind of for the fire-retardant mineral chemical combination of fireproofing of cable stopping composition, comprise following material:
A: siliceous binding
B: inorganic fire-retarded compound
C: mineral compound
A: siliceous binding
Described siliceous binding is silicate bond thing or silicon sol binding, can be also other can form polymer or in high molecular siliceous binding (poly-silicic acid).Preferred moisture water glass, moisture potassium silicate, hydrous magnesium silicate aluminium, moisture lithium silicate, hydrous magnesium silicate lithium, hydrous magnesium silicate.The mixture of preferred silicon sol or hydrous magnesium silicate lithium and silicon sol.Siliceous binding can be to contain crystal water, can be also to contain free-water, and this can't affect the adhesive effect that siliceous binding is risen in the present invention.
Preferably, the mass ratio of hydrous magnesium silicate lithium and silicon sol is 10:1-1:10.
The silicate bond thing, when bonding, be not perfect, in order to obtain having some strength and bonding persistent tackiness agent, need to carry out modification to the silicate bond thing, as pass through physically modified: the processing such as magnetic field, ultrasonic wave, autoclave heating, reflux, can eliminate the catabiosis of silicate, obtain having necessarily required silicate bond thing.In addition, also can carry out chemical modification: use the inorganic chemistry modifier modifications such as polyphosphoric acid salt, poly-silicophosphate, borate, poly-borate, aluminate, poly-silico-aluminate, mica powder, borax, the organic chemistry modifier modifications such as polyacrylamide, sorbyl alcohol.Can strengthen the viscosifying power of silicate bond thing by above-mentioned modification.
Further, polyphosphoric acid salt can be sodium polyphosphate, potassium polyphosphate, polyphosphoric acid magnesium, polyphosphoric acid calcium, ammonium polyphosphate.
Further, poly-silicophosphate can be poly-silicon sodium phosphate, poly-silicon potassiumphosphate, poly-silicon trimagnesium phosphate, poly-silicon calcium phosphate, poly-silicon ammonium phosphate.
Further, borate can Sodium Tetraborate, potassium borate, and those skilled in the art knows, can be also the mixture of boron oxide and metal oxide, the said two devices material can form borate at a certain temperature.Above-mentioned metal oxide can be aluminum oxide, sodium oxide, potassium oxide, magnesium oxide, calcium oxide etc.
Further, poly-borate can be poly-Sodium Tetraborate, poly-potassium borate, poly-aluminum borate, poly-magnesium borate, poly-lime borate, poly-ammonium borate.
Further, aluminate can sodium aluminate, potassium aluminate, and those skilled in the art knows, can be also the mixture of aluminic acid and metal oxide, the said two devices material can form aluminic acid at a certain temperature.Above-mentioned metal oxide can be aluminum oxide, sodium oxide, potassium oxide, magnesium oxide, calcium oxide etc.
Further, poly-silico-aluminate can be poly-sodium silicoaluminate, poly-potassium aluminosilicate, poly-silicoaluminate magnesium, poly-ca aluminosilicate, poly-silicoaluminate ammonium.
Further, above-mentioned silicate bond thing chemistry properties-correcting agent is Powdered or particulate state or fine platy.Powder or granular silicate bond thing chemistry properties-correcting agent, preferred 0.1 to 150 micron of its particle diameter, preferred 0.1-20 micron.Grain diameter greatly can affect dispersiveness, is difficult to play the effect of modification.The silicate bond thing chemistry properties-correcting agent of fine platy, preferred 0.1-10 micron is more preferably the 0.1-5 micron.
Again further, above-mentioned silicate bond thing chemistry properties-correcting agent can be that one or more of above-mentioned chemical modifier mix, and the mixing between them can not affect separately the effect as the chemical modifier of silicate bond thing.
Preferably, select organic chemical modifier and inorganic chemical modifier to mix and use, more preferably, select sorbyl alcohol to mix use with aluminate, as the chemical modifier of silicate bond thing.
Preferably, sorbyl alcohol and aluminate mass ratio are 1:10-10:1.
Preferably, the properties-correcting agent usage quantity of silicate bond thing is the 0.5%-10% of silicate bond amount.Be more preferably 1%-5%.More preferably, 2%-4%.
Fire protection flame retarding mineral chemical combination stopping composition of the present invention, the example that can enumerate can also comprise as the compound of the solidifying agent of silicate bond thing, comprises organic ester, ferrosilicon powder, beta-dicalcium silicate, Sodium Silicofluoride etc.
Further, organic ester, the example that can enumerate comprises methyl-formiate, methyl acetate, ethyl acetate, ethyl formate, ten DAADBSA methyl esters, ten DAADBSA ethyl esters, ten DAADBSA isobutyl esters.
Preferably, as the solidifying agent of silicate bond thing, can be above-mentioned solidifying agent separately as the solidifying agent of silicate bond thing, can be also that the mixture of above-mentioned solidifying agent is as the solidifying agent of silicate bond thing.
Preferably, the solidifying agent agent usage quantity of silicate bond thing is the 0.5%-40% of silicate bond amount.Be more preferably 5%-30%.More preferably, 10%-20%.
B: inorganic fire-retarded compound
As the inorganic fire-retarded compound that is used for fire protection flame retarding mineral chemical combination stopping composition of the present invention, this inorganic fire-retarded compound at high temperature has good heat absorption capacity, simultaneously non-combustible, play the fp effect, particularly, be hydroxide form inorganic combustion inhibitor, oxide type inorganic combustion inhibitor, borate type fire retardant, stannate type fire retardant, antimony type fire retardant, they can use separately or with two or more kinds of array configuration use.
Further, as the hydroxide form fire retardant, the example that can enumerate comprises aluminium hydroxide, magnesium hydroxide, magnesium basic carbonate, ventilation breather, hydrotalcite type complex metal hydroxide, the product of hydrotalcite type complex metal hydroxide drying.
Further, as the oxide type fire retardant, the example that can enumerate comprises product, rare earth oxide that aluminum oxide, magnesium oxide, cupric oxide, Red copper oxide, ferric oxide, zinc oxide, stannic oxide, hydrotalcite type complex metal hydroxide are calcined.
Further, fire-retardant as the borate type, the example that can enumerate comprises zinc borate, barium borate, lime borate, zinc metaborate, barium metaborate.
Further, as stannic acid type fire retardant, the example that can enumerate comprises zinc, barium stannate, alkali formula zinc, alkali formula barium stannate.
Further, as antimony type fire retardant, the example that can enumerate comprises: ANTIMONY TRIOXIDE SB 203 99.8 PCT, antimony pentaoxide, sodium antimonate, potassium antimonate.
As fire-retardant mineral compound, preferably, hydroxide form fire retardant of the present invention, or a small amount of oxide type fire retardant of hydroxide form fire retardant collocation.
Preferably, the inorganic combustion inhibitor of fire protection flame retarding mineral chemical combination stopping composition of the present invention is selected the mixture of magnesium hydroxide or aluminium hydroxide or aluminium hydroxide and cerium oxide.
For better compatible with the siliceous binding of a of the present invention, also for inorganic combustion inhibitor can be good at disperseing, effectively save the energy that is in preparation, the average particulate diameter of inorganic combustion inhibitor of the present invention is between 0.05-20 μ m, preferably 0.1-20 μ m.
Further, based on above-mentioned same reason, in order to obtain better dispersiveness, also can use silicone oil or silane coupling agent to process inorganic combustion inhibitor.
More preferably, the consumption of the inorganic combustion inhibitor of fire protection flame retarding mineral chemical combination stopping composition of the present invention is the 30%-200% of the siliceous binding of a.More preferably, be 50%-150%.
C: mineral compound
As the mineral compound of the increase flexibility that is used for fire protection flame retarding mineral chemical combination stopping composition of the present invention, talcum powder, carbon dust, graphite, titanium dioxide, silicon-dioxide, silicon, mica, calcium carbonate, calcium sulfate, barium sulfate, magnesiumcarbonate, sal epsom, titanium oxide, aluminum oxide, potassium oxide, silicon carbide, metal-powder Calucium Silicate powder, kaolin, marble dust.Preferred calcium carbonate, silicon-dioxide, aluminum oxide, silicon carbide, titanium oxide.The preferred staple fibre of fibrous mineral compound.The material of the preferred disc-shaped of the mineral compound of sheet or elliptical shape.
Preferred 0.01 to 20 micron of calcium carbonate, aluminum oxide, silicon carbide, titanium oxide, particularly preferably nanometer grade calcium carbonate, alumina in Nano level, nanometer silicon carbide, nano level titanium oxide.
Preferably, the mineral compound as being used for fire protection flame retarding mineral chemical combination stopping composition of the present invention can use the surface-modifying agents such as tensio-active agent or silane coupling agent or methyl-silicone oil modification.Perhaps use above-mentioned kinds of surface properties-correcting agent to carry out modification, to strengthen dispersiveness.
More preferably, the consumption of the mineral compound for fire protection flame retarding mineral chemical combination stopping composition of the present invention of the present invention is the 30%-200% of the siliceous binding of a.More preferably, be 50%-150%.
In addition, stopping composition of the present invention can also contain pigment, preferred inorganic pigments except containing above-mentioned substance.Known mineral dye such as carbon black, titanium dioxide, red iron oxide, lead-chrome yellow (lead chromate), zinc-chrome yellow (zinc chromate), cadmium yellow (Cadmium Sulfide) and iron oxide yellow (hydrous iron oxide), chromoxide green and lead chrome green, barba hispanica, cobalt blue, ultramarine.Preferred carbon black, titanium dioxide, red iron oxide, iron oxide yellow, ultramarine.
More preferably, the consumption of the pigment for fire protection flame retarding mineral chemical combination stopping composition of the present invention of the present invention is the 0.1%-50% of the siliceous binding of a.More preferably, be 1%-10%.
The preparation method of stopping composition of the present invention is: successively with siliceous binding, inorganic fire-retarded compound, mineral compound, pigment add in dispersion machine and disperseed 10 minutes, obtain stopping composition of the present invention after being uniformly dispersed according to formula.
Beneficial effect of the present invention:
1. of the present invention is nontoxic product for fire protection flame retarding mineral chemical combination stopping composition of the present invention, can be to naturally not producing harm after stopping composition is discarded.
2. of the present inventionly do not contain any combustible species for fire protection flame retarding mineral chemical combination stopping composition of the present invention, have excellent flameproof effect.
Of the present invention for fire protection flame retarding mineral chemical combination stopping composition of the present invention when running into fire, mineral chemical combination stopping composition can dry out and absorb a large amount of heat, to reach fire-retardant effect.
4. of the present invention for fire protection flame retarding mineral chemical combination stopping composition of the present invention, when being used for cable, stopping composition has good snappiness.
Description of drawings
Fig. 1 is the cross section structure figure of cable, and stopping composition is arranged between wire.
Embodiment
Below, in conjunction with accompanying drawing of the present invention, to further instruction of the present invention:
As shown in Figure 1,1 is copper stranded conductor, and 2 is mica tape+ceramic fireproof＝fire-proof composite band+polymeric dielectric layer, and 3 is stopping composition, and 4 is the glass strap, and 5 is halide-free smokeless level sheath.Copper stranded conductor coats mica tape, ceramic fireproof＝fire-proof composite band and polymeric dielectric layer outward successively.At least one copper stranded conductor is arranged in the glass strap, and the glass strap arranges one deck halide-free smokeless level sheath outward again.
The preparation method of electric wire is common practise, inventive point of the present invention not here, so in the present invention not to this unnecessary detailed description.
The preparation method of stopping composition as previously mentioned, repeated description no longer in the following example.
Embodiment 1-5
The electric wire of embodiment 1-5 comprises copper stranded conductor, mica tape, ceramic fireproof＝fire-proof composite band, polymeric dielectric layer, glass strap, halide-free smokeless level sheath.The material of electric wire and structure are as shown in Figure 1.In addition, the formula of stopping composition is as shown in the table:
| ? |
|
|
|
|
|
| Silicon sol | 100 | 100 | 100 | 100 | 100 |
| Aluminium hydroxide | 35 | - | 75 | - | - |
| Zinc borate | - | 190 | - | 40 | - |
| ANTIMONY TRIOXIDE SB 203 99.8 PCT | - | - | 10 | - | 50 |
| Talcum powder | 150 | - | 75 | 85 | - |
| Mica | - | 35 | - | 85 | - |
| Aluminum oxide | - | - | 70 | - | 40 |
| Carbon black | 1 | - | 0.5 | 0.1 | - |
| Titanium dioxide | - | 20 | - | - | - |
Embodiment 6-10
The electric wire of embodiment 6-10 comprises copper stranded conductor, mica tape, ceramic fireproof＝fire-proof composite band, polymeric dielectric layer, glass strap, halide-free smokeless level sheath.The material of electric wire and structure are as shown in Figure 1.In addition, the formula of stopping composition is as shown in the table:
| ? | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 |
| The hydrous magnesium silicate lithium | 100 | 100 | 100 | 100 | 100 |
| Magnesium hydroxide | 35 | - | 75 | - | - |
| Red copper oxide | - | 170 | - | 40 | - |
| Barium stannate | - | - | 10 | - | 50 |
| Silicon-dioxide | 100 | - | 75 | 85 | - |
| Nano-calcium carbonate | - | 35 | - | 85 | - |
| Silicon carbide | - | - | 70 | - | 40 |
| Ultramarine | 1 | - | 0.5 | 0.1 | - |
| Iron oxide yellow | - | 10 | - | - | - |
Embodiment 11-15
The electric wire of embodiment 11-15 comprises copper stranded conductor, mica tape, ceramic fireproof＝fire-proof composite band, polymeric dielectric layer, glass strap, halide-free smokeless level sheath.The material of electric wire and structure are as shown in Figure 1.In addition, the formula of stopping composition is as shown in the table:
| ? | Embodiment 11 | Embodiment 12 | Embodiment 13 | Embodiment 14 | Embodiment 15 |
| Moisture lithium silicate | 100 | 100 | 100 | 100 | 100 |
|
Methyl- |
1 | ? | ? | 0.5 | ? |
| Ferrosilicon powder | ? | 15 | ? | 10 | 5 |
|
|
5 | ? | 15 | ? | 10 |
| Magnesium hydroxide | 35 | - | 75 | - | - |
| Red copper oxide | - | 170 | - | 40 | - |
| Barium stannate | - | - | 10 | - | 50 |
| Nano silicon | 100 | - | 75 | 85 | - |
| Nano-calcium carbonate | - | 35 | - | 85 | - |
| Nano aluminium oxide | - | - | 70 | - | 40 |
Embodiment 16-20
The electric wire of embodiment 16-20 comprises copper stranded conductor, mica tape, ceramic fireproof＝fire-proof composite band, polymeric dielectric layer, glass strap, halide-free smokeless level sheath.The material of electric wire and structure are as shown in Figure 1.In addition, the formula of stopping composition is as shown in the table:
| ? | Embodiment 16 | Embodiment 17 | Embodiment 18 | Embodiment 19 | Embodiment 20 |
| The moisture lithium silicate of modification | 100 | 100 | 100 | 100 | 100 |
| Ferrosilicon powder | ? | 15 | ? | 10 | 5 |
|
|
5 | ? | 15 | ? | 20 |
| Magnesium hydroxide | 35 | - | 75 | - | - |
| Red copper oxide | - | 150 | - | 40 | - |
| Barium stannate | - | - | 30 | - | 30 |
| Nano silicon | 150 | - | 75 | 55 | - |
| Nano-calcium carbonate | - | 190 | - | 85 | - |
| Nano aluminium oxide | - | - | 70 | - | 40 |
The moisture lithium silicate of the modification of embodiment 16 is the moisture lithium silicate of ultra-fine mica modification, contains ultra-fine mica 5 weight parts in the moisture lithium silicate of 100 mass parts.
The moisture lithium silicate of the modification of embodiment 17 is the moisture lithium silicate of borax modification, contains borax 15 weight parts in the moisture lithium silicate of 100 mass parts.
The moisture lithium silicate of the modification of embodiment 18 contains ultra-fine mica 2 weight parts, borax 3 weight parts in the moisture lithium silicate of the modification of 100 mass parts.
The moisture lithium silicate of the modification of embodiment 19 contains ultra-fine mica 2 weight parts, sorbyl alcohol 0.5 weight part in the moisture lithium silicate of the modification of 100 mass parts.
The moisture lithium silicate of the modification of embodiment 20 contains ultra-fine mica 2 weight parts in the moisture lithium silicate of the modification of 100 mass parts, borax 3 weight parts, sorbyl alcohol 1 weight part.
Comparative Examples:
The electric wire of this Comparative Examples comprises copper stranded conductor, mica tape, ceramic fireproof＝fire-proof composite band, polymeric dielectric layer, glass strap, halide-free smokeless level sheath.The material of electric wire and structure are as shown in Figure 1.In addition, the formula of stopping composition is: 100 parts of polyvinyl resins, 10 parts of acrylic resins, 5 parts of silane coupling agents, 30 parts, graphite, 100 parts, calcium carbonate, 10 parts, aluminium hydroxide.
Test according to GB/T 19216.21-2003/IEC60331-21:1999, test condition is as follows:
1. blowtorch title: length is at least the tubular gas burner of 400mm.
2. fuel: propane
3. flame temperature: 950 ± 40 ℃
4. test period: 3 hours
Test procedure:
Device according to above-mentioned standard-required carries out following test:
1. sample preparation: the electric wire of long 1200mm, two sections are exposed the 100mm conductor, make test cable.
2. sample is arranged on clip and support, sample is regulated blowtorch to correct position relatively.
3. light blowtorch, regulate propane and air flow quantity; Turn on the power switch, regulating voltage is to the 0.6/1.0 kilovolt.
4. carry out according to the fiery time remaining of given confession, answer afterwards knock down the flame.But the reply sample of cable continues power supply 15 minutes, and namely total test period should be and supplies the fire time to add the cooling time of 15 minutes.
Qualified criterion:
1. sustaining voltage, namely neither one fusible cut-out or isolating switch disconnect.
2. conductor is continuous, and namely one, bulb does not extinguish yet.
Through test, the cable of embodiment 1-20 is all qualified, and Comparative Examples is qualified.
BS6387:1994 tests according to British Standard, and test condition is as follows:
1. blowtorch title: length is the tubular gas burner of 400mm at least.
2. fuel: propane
3. flame temperature: 650 ± 40 ℃
4. sprinkler: between 250 kPas to 350 kPas of the hydraulic pressure that provides, near the discharge sample of cable rises between 0.3 liter at every square metre of per second 0.25.
Test procedure:
1. sample preparation: the electric wire of long 1200mm, two sections are exposed the 100mm conductor, make test cable.
2. fully open origin, and the ignition combustion device, by the regulated valve on source of the gas, flame temperature is adjusted to 650 ± 40 ℃
3. close the source of the gas that leads to burner, make fray-out of flame, and keep the position of regulated valve, air feed can not changed.
4. sample of cable is arranged on the described iron and steel support of above-mentioned standard, and whole cable assembly is in place on the test framework.
5. switch on power, phase voltage is regulated 450/750 volt of load voltage value.
6. the connection source of the gas, rekindle burner, and after 15 minutes, the tap of fetching boiling water makes the shower nozzle of sprinkler be burnt the zone watering to sample of cable.
7. test 15 minutes burns away and sprinkles water.
Qualified criterion:
1. sustaining voltage, namely neither one fusible cut-out or isolating switch disconnect.
2. conductor is continuous, and namely one, bulb does not extinguish yet.
Through test, the cable of embodiment 1-20 is all qualified, the cable of Comparative Examples after water drenched 5 minutes, fuse blows, defective.
BS6387:1994 tests according to British Standard, and test condition is as follows:
1. blowtorch title: length is the tubular gas burner of 400mm at least.
2. fuel: propane
3. flame temperature: 950 ± 40 ℃
Test procedure:
1. sample preparation: the electric wire of long 1200mm, two sections are exposed the 100mm conductor, make test cable.
2. sample is arranged on the test ladder, according to above-mentioned standard adjustment burner, makes this be the tram with respect to sample.
3. making current, be adjusted to 450/750 volt of load voltage value to phase voltage.
4. startup percussion mechanism, the ignition combustion device.
5. continue test 15 minutes.
Qualified criterion:
1. sustaining voltage, namely neither one fusible cut-out or isolating switch disconnect.
2. conductor is continuous, and namely one, bulb does not extinguish yet.
Through the test, the cable of embodiment 1-20 is all qualified, the cable of Comparative Examples after knocking 10 minutes, fuse blows, defective.
Test according to IEC60331-31:2002, test condition is as follows:
1. blowtorch title: length is the tubular gas burner of 400mm at least.
2. fuel: propane
3. flame temperature: 750 ± 40 ℃
Test procedure:
1. sample preparation: the electric wire of long 1200mm, two sections are exposed the 100mm conductor, make test cable.
2. sample is arranged on the test ladder, according to above-mentioned standard adjustment burner, makes this be the tram with respect to sample.
3. adopt the fusible cut-out of 2A or the isolating switch with characteristic of equal value, every phase conductor is connected with one of transformer output terminal.
4. the ignition combustion device, regulate propane and air flow quantity.
5. after the ignition combustion device, start immediately and impact generation facility, starting characteristics test cycle timer, after starting 5 minutes ± 10 seconds, and afterwards every 5 minutes ± 10 seconds, impact the generation facility and should clash into cable, after each the shock, clashing into rod should clash in 20 seconds, promotes from the test ladder.
The test timer initiation after, the demand working power supply, regulating voltage is to the 0.6/1.0 kilovolt.
Qualified criterion:
1. sustaining voltage, namely neither one fusible cut-out or isolating switch disconnect.
2. conductor is continuous, and namely one, bulb does not extinguish yet.
Through the test, the cable of embodiment 1-20 is all qualified, the cable of Comparative Examples after knocking 5 minutes, fuse blows, defective.
Claims (10)
1. a fire protection flame retarding mineral chemical combination stopping composition, is characterized in that, comprises following material:
Siliceous binding;
Inorganic fire-retarded compound;
Mineral compound;
Described mineral compound is selected from one or several in talcum powder, carbon dust, graphite, titanium dioxide, silicon, mica, silicon-dioxide, calcium carbonate, calcium sulfate, barium sulfate, magnesiumcarbonate, sal epsom, titanium oxide, aluminum oxide, potassium oxide, silicon carbide, metal-powder Calucium Silicate powder, kaolin, marble dust;
described inorganic fire-retarded compound is selected from aluminum oxide, magnesium hydroxide, magnesium basic carbonate, ventilation breather, the hydrotalcite type complex metal hydroxide, the product of hydrotalcite type complex metal hydroxide drying, aluminum oxide, magnesium oxide, cupric oxide, Red copper oxide, ferric oxide, zinc oxide, stannic oxide, the product of hydrotalcite type complex metal hydroxide calcining, rare earth oxide, zinc borate, barium borate, lime borate, zinc metaborate, barium metaborate, zinc, barium stannate, alkali formula zinc, alkali formula barium stannate, ANTIMONY TRIOXIDE SB 203 99.8 PCT, antimony pentaoxide, sodium antimonate, one or several in potassium antimonate.
2. a kind of fire protection flame retarding mineral chemical combination stopping composition according to claim 1, is characterized in that, described siliceous binding is the mixture of silicate or silicon sol and hydrosilicate.
3. a kind of fire protection flame retarding mineral chemical combination stopping composition according to claim 1, is characterized in that, described siliceous binding is silicon sol.
4. a kind of fire protection flame retarding mineral chemical combination stopping composition according to claim 1, is characterized in that, comprises following material and weight part:
Siliceous binding 100;
Inorganic fire-retarded compound 30-200;
Mineral compound 30-200.
5. a kind of fire protection flame retarding mineral chemical combination stopping composition according to claim 1, it is characterized in that, described stopping composition also comprises silicate modified dose, described silicate modified dose of one or several that are selected from polyphosphoric acid salt, poly-silicophosphate, borate, poly-borate, aluminate, poly-silico-aluminate, mica powder, borax, polyacrylamide, sorbyl alcohol.
6. according to claim 5 a kind ofly it is characterized in that for the fire-retardant mineral chemical combination of fireproofing of cable stopping composition, the described silicate modified dose of 0.5%-10% that consumption is the silicate quality.
7. a kind of fire protection flame retarding mineral chemical combination stopping composition according to claim 1, it is characterized in that, described stopping composition also comprises the silicate solidifying agent, and described silicate solidifying agent is selected from one or several in ferrosilicon powder, beta-dicalcium silicate, Sodium Silicofluoride, methyl-formiate, methyl acetate, ethyl acetate, ethyl formate, ten DAADBSA methyl esters, ten DAADBSA ethyl esters, ten DAADBSA isobutyl esters.
8. a kind of fire protection flame retarding mineral chemical combination stopping composition according to claim 7, is characterized in that, described silicate hardener dose is the 0.5%-40% of silicate quality.
9. a kind of fire protection flame retarding mineral chemical combination stopping composition according to claim 1, it is characterized in that, described stopping composition also comprises mineral dye, and described mineral dye is selected from one or several in carbon black, titanium dioxide, red iron oxide, lead-chrome yellow (lead chromate), zinc-chrome yellow, cadmium yellow, iron oxide yellow, chromoxide green, lead chrome green, barba hispanica, cobalt blue, ultramarine.
10. a cable, is characterized in that, described cable contains as the described fire protection flame retarding mineral of any one claim chemical combination stopping composition in claim 1-9.
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| CN103450816A (en) * | 2013-05-23 | 2013-12-18 | 荣氏新材料（湖北）股份有限公司 | Special adhesive for fireproof vermiculite plate |
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| CN112961528B (en) * | 2021-02-08 | 2022-07-29 | 大厂金隅涂料有限责任公司 | Environment-friendly fireproof coating and preparation method thereof |
| CN113488271A (en) * | 2021-06-30 | 2021-10-08 | 东莞市民兴电缆有限公司 | Inorganic mineral insulation high-flame-retardant fireproof cable and preparation method thereof |
| CN114956765A (en) * | 2022-05-17 | 2022-08-30 | 湖北龙腾红旗电缆(集团)有限公司 | Used water glass sand steam regeneration liquid refractory mortar for refractory cable and preparation method thereof |
| CN115975309A (en) * | 2023-02-01 | 2023-04-18 | 包头稀土研究院 | Flame-retardant composition, preparation method and application thereof, PVC resin composition and preparation method thereof |
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