CN103236309A - Preparation method of ceramifiable silicon rubber composite belt for fire-resistant cable - Google Patents
Preparation method of ceramifiable silicon rubber composite belt for fire-resistant cable Download PDFInfo
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- CN103236309A CN103236309A CN2013101379148A CN201310137914A CN103236309A CN 103236309 A CN103236309 A CN 103236309A CN 2013101379148 A CN2013101379148 A CN 2013101379148A CN 201310137914 A CN201310137914 A CN 201310137914A CN 103236309 A CN103236309 A CN 103236309A
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- 239000002131 composite material Substances 0.000 title claims abstract description 63
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 230000009970 fire resistant effect Effects 0.000 title abstract description 6
- 229920001971 elastomer Polymers 0.000 claims abstract description 49
- 239000005060 rubber Substances 0.000 claims abstract description 49
- 239000000919 ceramic Substances 0.000 claims abstract description 36
- 150000001875 compounds Chemical class 0.000 claims abstract description 33
- 239000011521 glass Substances 0.000 claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000000839 emulsion Substances 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 9
- 238000003490 calendering Methods 0.000 claims abstract description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 30
- OGPNXGJLKXGASM-UHFFFAOYSA-N [Si].CC=C Chemical compound [Si].CC=C OGPNXGJLKXGASM-UHFFFAOYSA-N 0.000 claims description 29
- 238000002156 mixing Methods 0.000 claims description 28
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 25
- 239000005977 Ethylene Substances 0.000 claims description 25
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 24
- 229920001296 polysiloxane Polymers 0.000 claims description 21
- 239000001257 hydrogen Substances 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 20
- 239000000377 silicon dioxide Substances 0.000 claims description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 13
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 12
- 150000002431 hydrogen Chemical class 0.000 claims description 12
- 229920002545 silicone oil Polymers 0.000 claims description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052810 boron oxide Inorganic materials 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 8
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 6
- 230000001404 mediated effect Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000005987 sulfurization reaction Methods 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000003618 dip coating Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- MOWNZPNSYMGTMD-UHFFFAOYSA-N oxidoboron Chemical class O=[B] MOWNZPNSYMGTMD-UHFFFAOYSA-N 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000010445 mica Substances 0.000 abstract description 8
- 229910052618 mica group Inorganic materials 0.000 abstract description 8
- 239000011810 insulating material Substances 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000010923 batch production Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- -1 4-toluyl Chemical group 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- NALFRYPTRXKZPN-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane Chemical compound CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1 NALFRYPTRXKZPN-UHFFFAOYSA-N 0.000 description 1
- 206010000369 Accident Diseases 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical class C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 241000907903 Shorea Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- XQSFXFQDJCDXDT-UHFFFAOYSA-N hydroxysilicon Chemical compound [Si]O XQSFXFQDJCDXDT-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
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- Insulated Conductors (AREA)
- Inorganic Insulating Materials (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention belongs to the technical field of an insulating material for a cable, and discloses a preparation method of a ceramifiable silicon rubber composite belt for a fire-resistant cable. The composite belt comprises a glass cloth reinforcing layer and a silicon rubber layer, wherein the silicon rubber layer is prepared from a ceramifiable silicon rubber composition which comprises organosilicon rubber compound and composite ceramic powder; and the weight ratio of the organosilicon rubber compound to the composite ceramic powder is 1:1-1.2. The preparation method comprises the following steps: preparing high-strength organosilicon rubber compound; preparing composite ceramic powder; performing silicone-acrylate emulsion treatment of glass cloth; and calendering the composite belt. The ceramifiable silicon rubber composite belt for the fire-resistant cable prepared by the method has extremely high strength and good flexibility and can be used for manufacturing the fire-resistant cable in place of a mica tape; after a cable lapped by using the ceramifiable silicon rubber composite belt is ablated for 180 minutes in flame of 650-950 DEG C, the circuit can still work normally; and the method is easy to operate, has high yield and can realize batch production.
Description
Technical field
The present invention relates to a kind of cable with the preparation method of insulating material, especially a kind of can be in the lapped insulation preparation methods of porcelain formation skelteon under the flame condition for fire-resisting cable.
Background technology
In recent years, China's public place fire incident took place frequently, and showed according to interrelated data, entered since 21 century, China is total to about 90.9 ten thousand of breaking out of fire, dead 10059 people, about 60.3 hundred million yuan of direct economic loss, wherein fire incident quantity in public place has accounted for more than 50% of national fire incident total amount.During breaking out of fire accident in public places, cable safe and smooth most important to fire prevention fire fighting can not only win valuable rescue time to greatest extent, can also greatly reduce personnel's injures and deaths and property loss.Fire-resisting cable refers to have the fire resistance of regulation, can guarantee that circuit continues stable operation a period of time under flame condition, makes electric power system and whistle control system operate as normal under flame condition, and the loss that fire is caused drops to bottom line.At present, domestic and international fire-resisting cable mainly contains the fire-resisting cable of magnesium oxide mineral insulated cable and the wrapped inorganic insulation of mica tape.Though mineral insulated cable has good fire resistance, its manufacturing process complexity, production cost is high, factory length is limited, and cable is stone can't be crooked, joint complexity, difficulty of construction are very high, are difficult to extensive use.Though the wrapped fire-resisting cable worker of mica tape technology is simple, factory length is unrestricted, shortcoming of mica tape ubiquity, the mechanical strength of mica tape reduces significantly behind the high-temp combustion, become fragile, be subjected to behind the strenuous vibration easily powder of detached, cause fire-resistant poor effect.And easy dry linting when rubbing because of mica tape, cause a large amount of dust in wrapped scene to bring threat for operating personnel's health.Scientific research personnel's exploratory development potteryization silicon rubber insulation fire-resistant cable is arranged in recent years, but because of need have in the cables manufacturing process special mixing, extrude and vulcanizing equipment, complex process, and be difficult between isolation layer intensity and fire resistance and average out, ceramicization degree is difficult to the water-fast fire test by fire-resisting cable.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, the invention provides a kind of lapped insulation preparation methods, the fire-resisting cable that can replace mica tape to be used for around-packing technology, the preparation of cable with the silicon rubber composite band of this method preparation 3 hours energy holding circuits of ablating under 950 ℃ of flame conditions are unimpeded.
The technical solution used in the present invention is: but a kind of fire-resisting cable preparation method of porcelain silicon rubber composite band, but described fire-resisting cable comprises glass cloth enhancement layer and silastic-layer with porcelain silicon rubber composite band, but described silastic-layer is made by the porcelain rubber composition, but described porcelain rubber composition comprises organic silicon compounded rubber stock and composite ceramic, the weight ratio of described organosilicon elastomeric compound and composite ceramic is 1:1-1.2, described organosilicon elastomeric compound comprises that contents of ethylene is the ethenyl blocking methyl ethylene silicon raw rubber of 0.2%-0.4%, contents of ethylene is the methyl ethylene silicon raw rubber of 0.05%-0.07%, contents of ethylene is the methyl ethylene silicon raw rubber of 0.4%-0.6%, hydrogen content is containing hydrogen silicone oil and the gas-phase silica of 0.05%-0.15%, described composite ceramic comprises carborundum, aluminium oxide, zirconia, boron oxide and imvite, described preparation method comprises the steps:
A, ethenyl blocking methyl ethylene silicon raw rubber and methyl ethylene silicon raw rubber, containing hydrogen silicone oil and part gas-phase silica are mediated in kneader, and then branch will remain for 2-4 time in the gas-phase silica adding kneader, wherein the each addition of gas-phase silica is good with basic equivalent, all mixing heats after agglomerating to 85 ℃-95 ℃ continued mixing 2-3 hour, be warming up to 145 ℃-155 ℃ then, pumping vacuum and mixing 0.5-1 hour, take out nature cool off the organosilicon elastomeric compound;
B, load weighted each ceramic powder added high-speed mixer stir, then in grinding in ball grinder 0.5-1.5 hour composite ceramic;
C, get high strength organosilicon elastomeric compound, the part composite ceramic is mediated in kneader, and then branch will remain for 2-4 time in the composite ceramic adding kneader, wherein the each addition of composite ceramic is good with basic equivalent, heat after whole mixings are agglomerating to 65-75 ℃ of continuation mixing 2-3 hour, be warming up to 135-145 ℃ then, vacuumize and continued mixing 0.5-1 hour, taking-up is cooled off naturally, cutting into slices, thin-pass obtained the porcelain rubber composition in mixing 0.5-1 hour but add vulcanizing agent for several times in mill;
D, Silicone acrylic emulsion is mixed with the dilution that solid content is 3%-10%, handles glass cloth in the mode of dip-coating, brushing or spraying, under 70-90 ℃ temperature, dry;
But E, the glass cloth of handling with the porcelain rubber composition with through Silicone acrylic emulsion are compound by calendering technology, then through 115-125 ℃ of baking sulfuration 10-20min down, need width namely to obtain fire-resisting cable with porcelain silicon rubber composite band but cut at last.
Preferably, described organosilicon elastomeric compound comprises in weight portion: contents of ethylene is 100 parts of the ethenyl blocking methyl ethylene silicon raw rubbers of 0.2%-0.4%, contents of ethylene is methyl ethylene silicon raw rubber 200-250 part of 0.05%-0.07%, contents of ethylene is methyl ethylene silicon raw rubber 150-200 part of 0.4%-0.6%, hydrogen content is containing hydrogen silicone oil 20-30 part of 0.05%-0.15%, gas-phase silica 300-360 part;
Preferably, described composite ceramic comprises in weight portion: 100 parts in carborundum, aluminium oxide 28-38 part, zirconia 25-33 part, boron oxide 14-20 part, imvite 62-72 part.
Preferably, the weight ratio of described organosilicon elastomeric compound and composite ceramic is 1:1.1; Described organosilicon elastomeric compound comprises in weight portion: contents of ethylene is 100 parts of the ethenyl blocking methyl ethylene silicon raw rubbers of 0.2%-0.4%, contents of ethylene is 221 parts of the methyl ethylene silicon raw rubbers of 0.05%-0.07%, contents of ethylene is 179 parts of the methyl ethylene silicon raw rubbers of 0.4%-0.6%, hydrogen content is 25 parts of the containing hydrogen silicone oils of 0.05%-0.15%, 330 parts of gas-phase silicas; Described composite ceramic comprises in weight portion: 100 parts in carborundum, 33 parts in aluminium oxide, 29 parts of zirconias, 17 parts of boron oxides, 67 parts of imvites.
Preferably, the silicone content of Silicone acrylic emulsion is 3%-15% among the described step D; Better, described Silicone acrylic emulsion silicone content is 8%.Wherein silicone content is the mass percent of silicon in solid part.
Preferably, but described fire-resisting cable is respectively single or multiple lift with glass cloth enhancement layer and the silastic-layer of porcelain silicon rubber composite band
Beneficial technical effects of the present invention: but the fire-resisting cable of the inventive method preparation has very high intensity and good pliability with porcelain silicon rubber composite band, can directly replace mica tape and be used for the fire-resisting cable manufacturing, and can not produce dust pollution in the wrapped process; With its wrapped cable in 650-950 ℃ of flame, ablated 180 minutes, circuit still can operate as normal, and the back of ablating forms the ceramic-like rigid shell, shell has good electrical properties and mechanical strength, and circuit still can operate as normal under highly vibrations and water pouring situation; The inventive method operation is row easily, and the rate of finished products height can be realized mass production.
Embodiment
But porcelain silicon rubber composite band of the present invention, but be that glass cloth and high-intensity porcelain rubber composition is compound, making the wrapped material of insulation, concrete preparation process is as follows:
A, ethenyl blocking methyl ethylene silicon raw rubber and methyl ethylene silicon raw rubber, containing hydrogen silicone oil and the part gas-phase silica of different contents of ethylene are mediated in kneader, and then divide several will remain in the gas-phase silica adding kneader, all mixing heats after agglomerating to 85 ℃-95 ℃ continued mixing 2-3 hour, be warming up to 145 ℃-155 ℃ then, vacuumized (vacuum degree 0.08-0.09Mpa) mixing 0.5-1 hour.Take out the nature cooling and namely get high strength organosilicon elastomeric compound.Guarantee the intensity of composite band, make it reach wrapped requirement continuously in the cables manufacturing process, the ceramic powder of the hot strength of elastomeric compound itself, tearing strength and follow-up adding dispersion and fitness therein is key factor.The preferred weight proportion of each composition of elastomeric compound of the present invention is that 100 parts of contents of ethylene are the ethenyl blocking methyl ethylene silicon raw rubber of 0.2%-0.4% (quality): 200-250 part contents of ethylene is the methyl ethylene silicon raw rubber of 0.05%-0.07% (quality): 150-200 part contents of ethylene is the methyl ethylene silicon raw rubber of 0.4%-0.6% (quality): 20-30 part hydrogen content is the containing hydrogen silicone oil of 0.05%-0.15% (quality): 300-360 part gas-phase silica; The molecular weight of ethenyl blocking methyl ethylene silicon raw rubber and methyl ethylene silicon raw rubber is good with 60-80 ten thousand, and the viscosity of containing hydrogen silicone oil is good with 50-1000 mPas.Also can add a spot of hydroxy silicon oil in the prescription with the hot strength of further raising elastomeric compound.(general 3-5 time) the evenly adding for several times of gas-phase silica average mark has guaranteed its even dispersion and reinforcing effect in silicon raw rubber in the mixing process.
B, load weighted each ceramic powder added high-speed mixer stir, then in grinding in ball grinder 0.5-1.5 hour composite ceramic.The selection of ceramic powder is most important in the porcelain degree under the flame condition, hardness, compactness, anti-water washout characteristics and vibration resistance after the porcelainization for composite band, and the preferred weight proportion of composite ceramic of the present invention is 100 parts of carborundum: 28-38 part aluminium oxide: 25-33 part zirconia: 14-20 part boron oxide: the imvite of 62-72 part; Compactness and vibration resistance for after the further raising composite band porcelainization also can add an amount of glass dust.
C, get high strength organosilicon elastomeric compound, composite ceramic that part mill is good is mediated in kneader, and then divide for several times (2-4 time be advisable) will remain in the composite ceramic adding kneader, heat after whole mixings are agglomerating to 65-75 ℃ of continuation mixing 2-3 hour, be warming up to 135-145 ℃ then, vacuumizing (vacuum degree 0.08-0.09Mpa) continued mixing 0.5-1 hour, taking-up is cooled off naturally, the thin-pass of cutting into slices in mill is (general 3-5 time) for several times, but the adding vulcanizing agent obtained the porcelain rubber composition in mixing 0.5-1 hour.Composite ceramic divides for several times evenly adding more to be conducive to its abundant dispersion in elastomeric compound by average magnitude when kneading, and can improve intensity and the toughness of final composite band.Vulcanizing agent selects 2 for use, 5-dimethyl-2,5-bis(t-butylperoxy) hexane, peroxidating two-(2, the 4-dichloro-benzoyl), two (4-toluyl), dibenzoyl peroxides of peroxidating, peroxidized t-butyl perbenzoate, 1,1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane, 1, in the 1-bis(t-butylperoxy) cyclohexane one or several, it is just passable that convention amount is measured in adding.
D, Silicone acrylic emulsion is mixed with the dilution that solid content is 3%-10% (quality), handles glass cloth in the mode of dip-coating, brushing or spraying, under 70-90 ℃ temperature, dry.The silicone content of Silicone acrylic emulsion is good with 3%-15% (quality), and the silicone content of evidence the best is 8%, and certain silicone content has improved hydrophobicity, resistance to water, electric insulating quality and the ageing-resistant performance of handling glass cloth.Handle hot strength and the tearing strength that glass cloth has further improved composite band with Silicone acrylic emulsion.
But E, the glass cloth of handling with the porcelain rubber composition with through Silicone acrylic emulsion are compound by calendering technology, compound tense silastic-layer and glass cloth enhancement layer can compoundly be that double-decker or alternatively laminated are sandwich construction, after lamination is good, under 115-125 ℃, toast sulfuration 10-20min, need width namely to obtain porcelain silicon rubber composite band but cut at last.
Example 1
The preparation of high strength organosilicon elastomeric compound
Taking by weighing contents of ethylene is that 0.28% (quality) molecular weight is 700,000 ethenyl blocking methyl ethylene silicon raw rubber 120g, contents of ethylene is that 0.06% (quality) molecular weight is 800,000 methyl vinyl silicone rubber 265g, contents of ethylene is that 0.50% (quality) molecular weight is 600,000 methyl vinyl silicone rubber 215g, hydrogen content is that 0.1% (quality) viscosity is the containing hydrogen silicone oil 30g of 100mPas, gas-phase silica 96g is in kneader, mediate and divide the each 100g of adding gas-phase silica after agglomerating again three times, after whole mixings are agglomerating, be warming up to 90 ℃ and continue to mediate 2.5h, be warming up to 150 ℃ then and vacuumized (vacuum degree 0.08-0.09MPa) mixing 0.5 hour, take out the nature cooling and namely get high strength organosilicon elastomeric compound.
Add vulcanizing agent and make sheet and the test of sulfuration back of 2mm thickness in high strength organosilicon elastomeric compound, hot strength is 11MPa, and elongation at break is 500%, and tearing strength is 63kN/m, and hardness is shoreA 56.
Example 2
The preparation of composite ceramic
Take by weighing carborundum 412g, aluminium oxide 136g, zirconia 120g, boron oxide 70g, nano imvite 276g places high-speed mixer to stir 0.5h, mixes, and then in grinding in ball grinder 1h, namely gets composite ceramic.
Example 3
The processing of glass cloth
Taking by weighing silicone content is that 8% (quality), solid content are the Silicone acrylic emulsion 110g of 45% (quality), with the dilution of 890g water, handles glass cloth with the Silicone acrylic emulsion that dilution is good in the dip-coating mode, then 80 ℃ of baking 8min in drying tunnel.
Example 4
But the fire-resisting cable preparation of porcelain silicon rubber composite band
Take by weighing the high strength organosilicon elastomeric compound 900g that embodiment 1 makes, the composite ceramic 240g of embodiment 2 preparations, in kneader, mediate and divide three the each 250g of adding embodiment the composite ceramic of 2 preparations after agglomerating again, after whole mixings are agglomerating, be warming up to 70 ℃ and continue to mediate 2.5h, be warming up to 140 ℃ then and vacuumized (vacuum degree 0.08-0.09MPa) mixing 0.5 hour, taking-up is cooled off naturally, section back thin-pass 3-5 time in mill, add two (4-toluyl) 20g of peroxidating, mixing 0.5h, but namely get the porcelain rubber composition.
But the porcelain rubber composition is placed on the calender, by calendering technology but porcelain rubber composition single face is rolled on the glass cloth that embodiment 3 handled, through 120 ℃ of baking sulfurations of drying tunnel 15min, but namely obtain the fire-resisting cable porcelain silicon rubber composite band that the single face glass cloth strengthens.
But the electrical strength of gained porcelain silicon rubber composite band is more than or equal to 25kV/mm, and specific insulation is more than or equal to 2 * 10
11Ω cm
3, hot strength reaches the around-packing technology requirement in the cables manufacturing process more than or equal to 60 N/10mm.Carry out the fire resistance test test according to British Standard BS 6387:1994, energising voltage 450/750V ablated 180 minutes under 950 ℃ of flame conditions, keep the complete and energy normal power-up of circuit, and no pernicious gas discharged in the combustion process.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention does, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. but a fire-resisting cable is with the preparation method of porcelain silicon rubber composite band, but described fire-resisting cable comprises glass cloth enhancement layer and silastic-layer with porcelain silicon rubber composite band, but described silastic-layer is made by the porcelain rubber composition, but described porcelain rubber composition comprises organic silicon compounded rubber stock and composite ceramic, the weight ratio of described organosilicon elastomeric compound and composite ceramic is 1:1-1.2, described organosilicon elastomeric compound comprises that contents of ethylene is the ethenyl blocking methyl ethylene silicon raw rubber of 0.2%-0.4%, contents of ethylene is the methyl ethylene silicon raw rubber of 0.05%-0.07%, contents of ethylene is the methyl ethylene silicon raw rubber of 0.4%-0.6%, hydrogen content is containing hydrogen silicone oil and the gas-phase silica of 0.05%-0.15%, described composite ceramic comprises carborundum, aluminium oxide, zirconia, boron oxide and imvite, described preparation method comprises the steps:
A, ethenyl blocking methyl ethylene silicon raw rubber and methyl ethylene silicon raw rubber, containing hydrogen silicone oil and part gas-phase silica are mediated in kneader, and then branch will remain for 2-4 time in the gas-phase silica adding kneader, all mixing heats after agglomerating to 85 ℃-95 ℃ continued mixing 2-3 hour, be warming up to 145 ℃-155 ℃ then, pumping vacuum and mixing 0.5-1 hour, take out nature cool off the organosilicon elastomeric compound;
B, load weighted each ceramic powder added high-speed mixer stir, then in grinding in ball grinder 0.5-1.5 hour composite ceramic;
C, get high strength organosilicon elastomeric compound, the part composite ceramic is mediated in kneader, and then branch will remain for 2-4 time in the composite ceramic adding kneader, heat after whole mixings are agglomerating to 65-75 ℃ of continuation mixing 2-3 hour, be warming up to 135-145 ℃ then, vacuumize and continued mixing 0.5-1 hour, taking-up is cooled off naturally, and cutting into slices, thin-pass obtained the porcelain rubber composition in mixing 0.5-1 hour but add vulcanizing agent for several times in mill;
D, Silicone acrylic emulsion is mixed with the dilution that solid content is 3%-10%, handles glass cloth in the mode of dip-coating, brushing or spraying, under 70-90 ℃ temperature, dry;
But E, the glass cloth of handling with the porcelain rubber composition with through Silicone acrylic emulsion are compound by calendering technology, then through 115-125 ℃ of baking sulfuration 10-20min down, need width namely to obtain fire-resisting cable with porcelain silicon rubber composite band but cut at last.
2. but fire-resisting cable according to claim 1 is with the preparation method of porcelain silicon rubber composite band, and it is characterized in that: described organosilicon elastomeric compound comprises in weight portion:
Contents of ethylene is 100 parts of the ethenyl blocking methyl ethylene silicon raw rubbers of 0.2%-0.4%,
Contents of ethylene is methyl ethylene silicon raw rubber 200-250 part of 0.05%-0.07%,
Contents of ethylene is methyl ethylene silicon raw rubber 150-200 part of 0.4%-0.6%,
Hydrogen content is containing hydrogen silicone oil 20-30 part of 0.05%-0.15%,
Gas-phase silica 300-360 part.
3. but fire-resisting cable according to claim 1 and 2 is with the preparation method of porcelain silicon rubber composite band, and it is characterized in that: described composite ceramic comprises in weight portion:
100 parts in carborundum,
Aluminium oxide 28-38 part,
Zirconia 25-33 part,
Boron oxide 14-20 part,
Imvite 62-72 part.
4. but fire-resisting cable according to claim 3 is with the preparation method of porcelain silicon rubber composite band, and it is characterized in that: the weight ratio of described organosilicon elastomeric compound and composite ceramic is 1:1.1;
Described organosilicon elastomeric compound comprises in weight portion:
Contents of ethylene is 100 parts of the ethenyl blocking methyl organosilicon elastomeric compounds of 0.2%-0.4%,
Contents of ethylene is 221 parts of the methyl ethylene silicon raw rubbers of 0.05%-0.07%,
Contents of ethylene is 179 parts of the methyl ethylene silicon raw rubbers of 0.4%-0.6%,
Hydrogen content is 25 parts of the containing hydrogen silicone oils of 0.05%-0.15%,
330 parts of gas-phase silicas;
Described composite ceramic comprises in weight portion:
100 parts in carborundum,
33 parts in aluminium oxide,
29 parts of zirconias,
17 parts of boron oxides,
67 parts of imvites.
5. but fire-resisting cable according to claim 1 and 2 is with the preparation method of porcelain silicon rubber composite band, and it is characterized in that: the silicone content of Silicone acrylic emulsion is 3%-15% among the described step D.
6. but fire-resisting cable according to claim 1 and 2 is characterized in that with the preparation method of porcelain silicon rubber composite band: but described fire-resisting cable is respectively single or multiple lift with glass cloth enhancement layer and the silastic-layer of porcelain silicon rubber composite band.
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| CN103413598A (en) * | 2013-08-19 | 2013-11-27 | 宝胜科技创新股份有限公司 | Aerospace fire resisting cable and production technology thereof |
| CN103937256A (en) * | 2014-03-01 | 2014-07-23 | 安徽省定兴电缆有限公司 | High reinforced fireproof cable sheath material and preparation method thereof |
| CN104299691A (en) * | 2014-10-14 | 2015-01-21 | 济南圣通电力线缆有限公司 | Flexible fireproof cable |
| CN104505154A (en) * | 2014-12-03 | 2015-04-08 | 湖北华星欧电子有限公司 | Ceramic fireproof insulating cable and preparation method of insulating layer material |
| CN104629375A (en) * | 2015-02-11 | 2015-05-20 | 深圳市安品有机硅材料有限公司 | Ceramicizable Fireproof and Refractory Silicone Rubber |
| CN104650597A (en) * | 2015-02-11 | 2015-05-27 | 深圳市安品有机硅材料有限公司 | Preparation method of ceramizable fireproof refractory silicone rubber |
| CN104672907A (en) * | 2013-11-30 | 2015-06-03 | 招远市东晟橡胶制品有限公司 | Silicon rubber composition |
| CN107057365A (en) * | 2016-12-29 | 2017-08-18 | 深圳市安品有机硅材料有限公司 | Flame retardant type fire-resisting cable is with can porcelain SiClx rubber and preparation method thereof |
| CN107163585A (en) * | 2017-04-05 | 2017-09-15 | 华南理工大学 | It is a kind of can low-temp ceramics silicon rubber and preparation method thereof |
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| CN113637325A (en) * | 2021-07-29 | 2021-11-12 | 浙江元通线缆制造有限公司 | Long-life ceramic silicon rubber material for wire distribution and preparation method thereof |
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| CN103413598B (en) * | 2013-08-19 | 2015-11-04 | 宝胜科技创新股份有限公司 | Aero-Space fire-resisting cable and production technology thereof |
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| CN104299691A (en) * | 2014-10-14 | 2015-01-21 | 济南圣通电力线缆有限公司 | Flexible fireproof cable |
| CN104505154A (en) * | 2014-12-03 | 2015-04-08 | 湖北华星欧电子有限公司 | Ceramic fireproof insulating cable and preparation method of insulating layer material |
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| CN104629375A (en) * | 2015-02-11 | 2015-05-20 | 深圳市安品有机硅材料有限公司 | Ceramicizable Fireproof and Refractory Silicone Rubber |
| CN104650597A (en) * | 2015-02-11 | 2015-05-27 | 深圳市安品有机硅材料有限公司 | Preparation method of ceramizable fireproof refractory silicone rubber |
| CN104629375B (en) * | 2015-02-11 | 2017-05-10 | 深圳市安品有机硅材料有限公司 | Fireproof and fire-resistant silicon rubber capable of being ceramized |
| CN107057365A (en) * | 2016-12-29 | 2017-08-18 | 深圳市安品有机硅材料有限公司 | Flame retardant type fire-resisting cable is with can porcelain SiClx rubber and preparation method thereof |
| CN107057365B (en) * | 2016-12-29 | 2020-07-28 | 深圳市安品有机硅材料有限公司 | Flame-retardant ceramifiable silicon rubber for fire-resistant cable and preparation method thereof |
| CN107163585A (en) * | 2017-04-05 | 2017-09-15 | 华南理工大学 | It is a kind of can low-temp ceramics silicon rubber and preparation method thereof |
| CN107163585B (en) * | 2017-04-05 | 2019-10-18 | 华南理工大学 | A kind of silicone rubber capable of low-temperature ceramization and preparation method thereof |
| CN108943920A (en) * | 2018-05-24 | 2018-12-07 | 沪如科技南京有限公司 | A kind of high temperature resistant heat insulation rubber composite belt and preparation method thereof |
| CN113637325A (en) * | 2021-07-29 | 2021-11-12 | 浙江元通线缆制造有限公司 | Long-life ceramic silicon rubber material for wire distribution and preparation method thereof |
| CN113913021A (en) * | 2021-08-25 | 2022-01-11 | 河南爱彼爱和新材料有限公司 | Ceramic rubber and ceramic composite belt prepared from waste glass fiber aerogel felt and preparation process |
| CN116004129A (en) * | 2022-12-29 | 2023-04-25 | 苏州赛伍应用技术股份有限公司 | Ceramic composite belt for fireproof high-temperature insulation of power battery and preparation and application thereof |
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