CN106782824B - A kind of insulated electric conductor - Google Patents

A kind of insulated electric conductor Download PDF

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CN106782824B
CN106782824B CN201611195658.8A CN201611195658A CN106782824B CN 106782824 B CN106782824 B CN 106782824B CN 201611195658 A CN201611195658 A CN 201611195658A CN 106782824 B CN106782824 B CN 106782824B
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CN106782824A (en
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汪云
郝会霞
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Zhengzhou Electric Power College
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Zhengzhou Electric Power College
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Priority to CN201711206369.8A priority patent/CN108172323B/en
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    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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Abstract

A kind of insulated electric conductor, belong to the Power Material used in electrical distribution field, including metal core and the protective layer for being wrapped in metal core outer layer, the protective layer is followed successively by electro-insulating rubber layer, polyurethane fiber layer and insulating lacquer layer, the polyurethane fiber cloth that polyurethane fiber layer forms for polyurethane fiber braiding from inside to outside.For the present invention by setting gradually electro-insulating rubber layer, polyurethane fiber layer and insulating lacquer layer from inside to outside on the surface of metal core, the weatherability and insulation performance of insulated electric conductor is greatly improved in the protective layer that multilayer is set, and then improves its service life.

Description

A kind of insulated electric conductor
Technical field
The present invention relates to the Power Material used in field of power, specifically a kind of insulated electric conductor.
Background technology
Electric wire is the Power Material for frequently encountering and seeing in daily life, for conducting electric current.The daily life of general family Wire structure used is fairly simple in work, is all parcel insulating cement cortex outside internal metal core.This insulated electric conductor It is low to manufacture cost, often uses in daily life.But weather resistance due to its exterior insulation rubber and bad, so This insulated electric conductor is chronically exposed in air, is subject to the natural conditions such as sunlight exposure, erosion by wind and rain, hot and cold alternation and haze Influence, can cause its surface insulation rubber lose insulation performance, so as to produce security risk.
The content of the invention
The object of the present invention is to provide a kind of insulated electric conductor, the insulated electric conductor by the surface of metal core from inside to outside Electro-insulating rubber layer, polyurethane fiber layer and insulating lacquer layer are set gradually, insulated electro is greatly improved in the protective layer that multilayer is set The weatherability and insulation performance of line, and then improve its service life.
The present invention is that technical solution is used by realizing above-mentioned technical purpose:A kind of insulated electric conductor, including metal core With the protective layer for being wrapped in metal core outer layer, the protective layer is followed successively by electro-insulating rubber layer, polyurethane fiber layer from inside to outside And insulating lacquer layer, the polyurethane fiber cloth that the polyurethane fiber layer forms for polyurethane fiber braiding.
According to weight ratio, the electro-insulating rubber layer is by 36~38 parts of mixing rubber matrix, 4~6 parts of reinforcing fiber, 2 ~3 parts of vulcanizing agent, 4~5 parts of additive and 2~3 parts of filler are kneaded under the conditions of 60~80 DEG C and form, wherein, mix Rubber matrix is refined by EP rubbers, fluorubber, silicon rubber and pitch by weight 8-10:4-5:2-3:1 ratio is kneaded to obtain, Reinforcing fiber is by polyurethane fibre, polyvinyl chloride fibre and glass fibre by weight 2:1:4 ratio mixes, Additive is by sepiolite cashmere powder, modified nano-titanium dioxide and ethyl orthosilicate by weight 8-10:1-2:The ratio system of 16-18 Into filler is by mica powder, modified silicon powder, modified pearl rock powder and simple substance silica flour by weight 7-8:3-4:1-2:1 ratio Example mixes;The modified nano-titanium dioxide, modified silicon powder and modified pearl rock powder are respectively commercially available nano-silica Change filtering after standing 1-2h after titanium, silicon powder and crushed crude pearlite are mixed with the surface modifier of its weight 3-5% to dry to obtain, institute With surface modifier by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3-4:80:2-3:1-2 ratio mixing and Into.
The preparation method of the additive is:According to weight ratio, take 16~18 parts of ethyl orthosilicates and deionized water according to 1:The ratio mixing of 8-10, then the glacial acetic acid of ethyl orthosilicate weight 10%, ethyl orthosilicate weight 5% are sequentially added thereto Carbon dust, 8~10 parts of sepiolite cashmere powder and 1~2 part of modified nano-titanium dioxide are uniformly mixed and are reacted, in reaction process, Apply the ultrasonic wave 1min of frequency 350-370kHz into reaction system every 20min, after question response to reaction system into Row ultrafiltration obtains solid powder, and it is to obtain additive that finally by solid powder, abundant calcination, which removes carbon dust, under aerobic conditions;Institute It is to stand 1- after commercially available nano-titanium dioxide is mixed with the surface modifier of its weight 3-5% to state modified nano-titanium dioxide Filtering dries to obtain after 2h, and surface modifier used is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3-4:80:2- 3:The ratio of 1-2 mixes.
According to weight ratio, epoxy modified silicone resin, 24-26 part of acrylic acid of the insulating lacquer layer by 60-64 parts Resin, 2-3 parts of pigment, 8-10 parts of modified filler and 1-2 parts of dispersant is made, wherein, epoxy modified silicone resin By 44-46 parts of epoxy resin, 5-6 parts of n-butyl acetate, 20-22 parts of phenyl chlorosilane, 6-7 parts of methylchlorosilane, 2-3 parts of acetone, 4-5 parts of toluene and 13-15 parts of butanol is made, and the modified filler is by 2-3 parts of modified meerschaum suede Powder, 6-7 parts of mica powder and 4-5 parts of modified manometer silicon dioxide mix, and the modified meerschaum suede powder is commercially available Sepiolite cashmere powder is with KH570, nano-aluminum hydroxide, acetone and barium hydroxide according to weight ratio 100:4-5:1-2:8-10:0.8-1 Ratio mix;The modified manometer silicon dioxide is to change the surface of commercially available nano silicon dioxide and its weight 3-5% Property agent is mixed to get, and the surface modifier is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3-4:80:2-3:1-2 Ratio mix.
The preparation method of the epoxy modified silicone resin is:
1)Each material is weighed according to above-mentioned ratio, then mixes phenyl chlorosilane, methylchlorosilane, toluene and butanol Acetone is added afterwards to stir evenly, it is spare;
2)Epoxy resin and n-butyl acetate are mixed, heating dissolves epoxy resin, is then cooled to 40 DEG C, and will step Rapid 1)The mixture finally obtained is added thereto, and then heats to the 170-190 DEG C of half for being condensed to original volume, that is, ring is made Oxygen modified organic silicone resin.
According to weight ratio, the epoxy resin by 4 parts of novolac epoxy resin, 1.5 parts of polybutadiene epoxy resin, 0.8 part of diisocyanate, 0.5 part of modified manometer silicon dioxide and 0.5 part of modified silicasol are made, the modified Nano Silica is to be mixed to get the surface modifier of commercially available nano silicon dioxide and its weight 3-5%, the surface modifier by KH550, ethanol, acetone and barium hydroxide are according to weight ratio 3-4:80:2-3:The ratio of 1-2 mixes;The modified silicon is molten Glue is silicon powder, the crystal whisker of hexa potassium titanate of Ludox weight 1-2% that Ludox weight 2-3% is sequentially added in commercially available Ludox With the sodium acetate of Ludox weight 0.8-1%, the mixture that 1-2h is obtained then is stirred under the conditions of 70-80 DEG C.
The preparation method of the epoxy resin comprises the following steps:
1)Modified manometer silicon dioxide and modified silicasol are prepared respectively, it is spare;
The modified manometer silicon dioxide is to mix commercially available nano silicon dioxide with the surface modifier of its weight 3-5% Obtain, surface modifier is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3-4:80:2-3:The ratio mixing of 1-2 Form;
The modified silicasol is silicon powder, the Ludox weight that Ludox weight 2-3% is sequentially added in commercially available Ludox The crystal whisker of hexa potassium titanate of 1-2% and the sodium acetate of Ludox weight 0.8-1% are measured, 1-2h is then stirred under the conditions of 70-80 DEG C obtains The mixture arrived;
2)Each component is weighed according to above-mentioned ratio, after then novolac epoxy resin is melted, adds weigh thereto Polybutadiene epoxy resin and diisocyanate, stirring is after complete melt, then adds step 1 thereto)Obtained modification Nano silicon dioxide and modified silicasol, are made epoxy resin after stirring evenly.
According to weight ratio, polyether polyol by 76-78 parts of polyurethane fiber used in the polyurethane fiber layer, 28- 30 parts of toluene di-isocyanate(TDI), 7-9 parts of epoxy resin, 9-11 parts of propane diols and 13-15 parts of filler is made, described to fill out Material is by 5-7 parts of sepiolite cashmere powder, 2-3 parts of diatomite, 3-4 parts of modified manometer silicon dioxide and 0.8-1 parts of additive Mix, and additive for KH570, nano-aluminum hydroxide, acetone and barium hydroxide according to weight ratio 3-4:0.8-1:3-4: The ratio of 0.5-0.6 mixes;The modified manometer silicon dioxide is by commercially available nano silicon dioxide and its weight 3-5% Surface modifier be mixed to get, the surface modifier is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3-4:80: 2-3:The ratio of 1-2 mixes.
Also containing 1.2-1.4 parts of modification hollow glass micropearl in the filler, modified hollow glass micropearl is will be commercially available Hollow glass micropearl mixed with the surface modifier of its weight 3-5% after stand 1-2h after filtering dry to obtain, surface used changes Property agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3-4:80:2-3:The ratio of 1-2 mixes.
The preparation method of polyurethane fiber used in polyurethane fiber layer is:
1)Prepare filler
First, KH570, nano-aluminum hydroxide, acetone and barium hydroxide are weighed respectively according to weight ratio 3-4:0.8-1:3- 4:The ratio of 0.5-0.6 is mixed to prepare additive;
Secondly, the surface modifier of commercially available nano silicon dioxide and its weight 3-5% are mixed to prepare modified nano-silica SiClx, surface modifier KH550, ethanol, acetone and barium hydroxide are according to weight ratio 3-4:80:2-3:The ratio mixing of 1-2 Form;
Finally, sepiolite cashmere powder, diatomite, modified manometer silicon dioxide and additive are weighed respectively simultaneously in a ratio It is uniformly mixed and filler is made, it is spare;
2)Polyether polyol, toluene di-isocyanate(TDI), epoxy resin, propane diols are weighed respectively according to the ratio and are filled out Material, then adds toluene di-isocyanate(TDI) after 90-110 DEG C of fusing by polyether polyol and propane diols is kneaded 10- thereto 20min, then adds epoxy resin thereto again, filler mix is added after epoxy resin dissolves polyurethane material is uniformly made Material, it is spare;
3)With step 2)Obtained polyurethane material prepares polyurethane fiber silk for raw material, and is compiled using polyurethane fiber silk Knit and form polyurethane fiber layer.
In the present invention, the sum of thickness of electro-insulating rubber layer, polyurethane fiber layer and insulating lacquer layer is identical with existing thickness , and the thickness proportion of three is preferably 6:3:1;The dispersant of the present invention selects BYK-P-104S, can improve pigment wetting Property simultaneously makes pigment dispersion stability.
In the electro-insulating rubber layer of the present invention, it is kneaded to form rubber-based with EP rubbers, fluorubber, silicon rubber and pitch first Body, then adds fine by the enhancing of polyurethane fibre, polyvinyl chloride fibre and glass fiber hybrid in rubber matrix Dimension, not only increases the intensity and wearability of rubber matrix, and also improve insulation performance and corrosion-resistant property;By in rubber In matrix body add made of sepiolite cashmere powder, modified nano-titanium dioxide, ethyl orthosilicate additive and by mica powder, change Property silicon powder, modified pearl rock powder and filler made of simple substance silica flour, so as to further increase the wearability of rubber matrix And weatherability;Modified pearl rock powder, modified nano-titanium dioxide and modified silicon powder, on the one hand can be dispersed in rubber-based On the other hand it is to make the substantial amounts of silicone hydroxyl of its surface grafting in modifying process in body, these groups are by chemically reacting these Material is connected with matrix, ensures that the two has good interface binding power;
In the modified filler of insulating lacquer layer used in the present invention in addition to containing conventional mica powder, but also contain modification Sepiolite cashmere powder and modified manometer silicon dioxide, both materials can be uniformly dispersed in insulation under the action of dispersant In enamelled coating, and since its modified surface nature changes, so as to closely be tied with the organic principle in insulating lacquer layer Close, substantially increase the wearability and ageing-resistant performance of insulating lacquer layer;
Epoxy resin used in the present invention preferably with novolac epoxy resin, polybutadiene epoxy resin, diisocyanate, change Property nano silicon dioxide and modified silicasol are made, and not only increase the toughness and ageing-resistant performance of material, and in system Modified silicasol particulate and modified manometer silicon dioxide are added, the mechanical property and thermal property of material can be substantially improved, together When also found the addition of modified silicasol particulate to component mixing, the raising and production of the tensile property of product in preparation process The final interpenetrating form of product is favourable.
In the present invention, in the filler of polyurethane fiber layer containing sepiolite cashmere powder, diatomite, modified manometer silicon dioxide and The additive of special composition, after these types of component mixing, additive can be to sepiolite cashmere powder, diatomite and modified nano-silica The surface nature of SiClx is further modified, so that it is in polyether polyol, toluene di-isocyanate(TDI) and epoxy resin It is dispersed in the matrix of formation, moreover, after uniform filling is dispersed in matrix, on the one hand, sepiolite cashmere powder has very big Internal surface area, it is the micro mist with microcellular structure, its inner surface and the outer surface property can be combined with matrix, and can It is combined with each other, is formed in polyurethane matrix ageing-resistant and lifting insulating properties with modified diatomite and nano silicon dioxide The dielectric layer that organic-inorganic mutually adulterates;Meanwhile modified hollow glass micropearl can be additionally added in filler, and in modifying process In make the substantial amounts of silicone hydroxyl of hollow glass micropearl surface grafting, these groups are by chemical reaction by hollow glass micropearl and matrix Connect, ensure that the two has good interface binding power, for material when being subject to external force, hollow glass micropearl particle is in material In be stressed and deform upon, destroy, so as to absorb the stress of outside, improve the performance of material, crazing can also be triggered, Crack extension is terminated, triggers the shear yielding of matrix under certain morphosis, so as to consume substantial amounts of impact energy, and can be compared with Born external force is transmitted well, improves the compressive strength, bending strength, impact strength of matrix;
When modified manometer silicon dioxide is made in the present invention, mixed using barium hydroxide, nano-aluminum hydroxide and sodium carbonate Nano level SiO is allowed as catalyst2The hard to bear effect to hydroxyl of surface energy of particle, so that containing a certain number of oxygen-containing Functional group, adds nanoscale SiO2The related surface compatability of particle, in nanoscale SiO2Particle is sufficiently mixed with remaining raw material When, because SiO2Particle very little, and specific surface area is big, the structure of granular causes rest materials to increase with its contact area, Make SiO2Particle can be dispersed in material, consequently facilitating SiO2With remaining material at high temperature occur chemical bonding or Physical bond;
Beneficial effect:Compared with the existing, the present invention has the following advantages:
1)The present invention by set gradually from inside to outside on the surface of metal core electro-insulating rubber layer, polyurethane fiber layer and Insulating lacquer layer, the weatherability and insulation performance of insulated electric conductor is greatly improved in the protective layer that multilayer is set, and then improves it Service life;
2)In the electro-insulating rubber layer of the present invention, it is kneaded to form rubber with EP rubbers, fluorubber, silicon rubber and pitch first Matrix, then adds the enhancing by polyurethane fibre, polyvinyl chloride fibre and glass fiber hybrid in rubber matrix Fiber, not only increases the intensity and wearability of rubber matrix, and also improves insulation performance and corrosion-resistant property;By In rubber matrix add made of sepiolite cashmere powder, modified nano-titanium dioxide, ethyl orthosilicate additive and by mica powder, Modified silicon powder, modified pearl rock powder and filler made of simple substance silica flour, so as to further increase the wear-resisting of rubber matrix Property and weatherability;
3)In the modified filler of insulating lacquer layer used in the present invention in addition to containing conventional mica powder, but also contain and change Property sepiolite cashmere powder and modified manometer silicon dioxide, both materials can be uniformly dispersed in absolutely under the action of dispersant In edge enamelled coating, and since its modified surface nature changes, so as to close with the organic principle in insulating lacquer layer With reference to substantially increasing the wearability and ageing-resistant performance of insulating lacquer layer;
4)Epoxy resin used in the present invention preferably with novolac epoxy resin, polybutadiene epoxy resin, diisocyanate, Modified manometer silicon dioxide and modified silicasol are made, and not only increase the toughness and ageing-resistant performance of material, and in system Middle addition modified silicasol particulate and modified manometer silicon dioxide, can substantially improve the mechanical property and thermal property of material, At the same time it has also been found that modified silicasol particulate addition in preparation process component mixing, product tensile property raising and The final interpenetrating form of product is favourable;
5)In the filler of polyurethane fiber layer of the present invention containing sepiolite cashmere powder, diatomite, modified manometer silicon dioxide and The additive of special composition, after these types of component mixing, additive can be to sepiolite cashmere powder, diatomite and modified nano-silica The surface nature of SiClx is further modified, so that it is in polyether polyol, toluene di-isocyanate(TDI) and epoxy resin It is dispersed in the matrix of formation, moreover, after uniform filling is dispersed in matrix, on the one hand, sepiolite cashmere powder has very big Internal surface area, it is the micro mist with microcellular structure, its inner surface and the outer surface property can be combined with matrix, and can It is combined with each other, is formed in polyurethane matrix ageing-resistant and lifting insulating properties with modified diatomite and nano silicon dioxide The dielectric layer that organic-inorganic mutually adulterates.
Brief description of the drawings
Fig. 1 is the sectional drawing of insulated electric conductor of the present invention;
Reference numeral:1st, metal core, 2, electro-insulating rubber layer, 3, polyurethane fiber layer, 4, insulating lacquer layer.
Embodiment
With reference to specific embodiment, the present invention is further elaborated.
Embodiment 1
As shown in the figure, a kind of insulated electric conductor, including metal core 1 and the protective layer for being wrapped in 1 outer layer of metal core, it is described Protective layer is followed successively by electro-insulating rubber layer 2, polyurethane fiber layer 3 and insulating lacquer layer 4 from inside to outside, and the polyurethane fiber layer 3 is The polyurethane fiber cloth that polyurethane fiber braiding forms.
Above be the present embodiment basic embodiment, can more than on the basis of be further optimized, improve and limit:
Such as, according to weight ratio, the electro-insulating rubber layer 2 by 36 parts of mixing rubber matrix, 4 parts of reinforcing fiber, 2 parts Vulcanizing agent, 4 parts of additive and 2 parts of filler are kneaded under the conditions of 60 DEG C and form, wherein, mixing rubber matrix is by the third rubber of second Glue, fluorubber, silicon rubber and pitch are by weight 8:4:2:1 ratio is kneaded to obtain, and reinforcing fiber is fine by polyurethanes Dimension, polyvinyl chloride fibre and glass fibre are by weight 2:1:4 ratio mixes, and additive is by sepiolite cashmere powder, modification Nano-titanium dioxide and ethyl orthosilicate are by weight 8:1:16 ratio is made, filler by mica powder, modified silicon powder, change Property crushed crude pearlite and simple substance silica flour by weight 7:3:1:1 ratio mixes;The modified nano-titanium dioxide, modified silicon Micro mist and modified pearl rock powder are respectively that commercially available nano-titanium dioxide, silicon powder and crushed crude pearlite and the surface of its weight 3% change Property agent mixing after stand 1-2h after filtering dry to obtain, surface modifier used is pressed by KH550, ethanol, acetone and barium hydroxide According to weight ratio 3:80:2:1 ratio mixes;
Further, the preparation method of the additive is:According to weight ratio, 16 parts of ethyl orthosilicates and deionized water are taken According to 1:8 ratio mixing, then the glacial acetic acid of ethyl orthosilicate weight 10%, ethyl orthosilicate weight 5% are sequentially added thereto Carbon dust, 8 parts of sepiolite cashmere powder and 1 part of modified nano-titanium dioxide be uniformly mixed and reacted, in reaction process, every 20min applies the ultrasonic wave 1min of frequency 350kHz into reaction system, and carrying out ultrafiltration to reaction system after question response obtains To solid powder, it is to obtain additive that finally by solid powder, abundant calcination, which removes carbon dust, under aerobic conditions;The modification is received Rice titanium dioxide is to filter to dry after standing 1h after commercially available nano-titanium dioxide is mixed with the surface modifier of its weight 3% Obtain, surface modifier used is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3:80:2:1 ratio mixing and Into;
And for example, according to weight ratio, epoxy modified silicone resin, 24 part of acrylic acid of the insulating lacquer layer 4 by 60 parts Resin, 2 parts of pigment, 8 parts of modified filler and 1 part of dispersant are made, wherein, epoxy modified silicone resin is by 44 parts Epoxy resin, 5 parts of n-butyl acetate, 20 parts of phenyl chlorosilane, 6 parts of methylchlorosilane, 2 parts of acetone, 4 parts of toluene Butanol with 13 parts is made, and the modified filler is by 2 parts of modified meerschaum suede powder, 6 parts of mica powder and 4 parts of modified Nano Silica mixes, and the modified meerschaum suede powder is commercially available sepiolite cashmere powder and KH570, nano-aluminum hydroxide, third Ketone and barium hydroxide are according to weight ratio 100:4:1:8:0.8 ratio mixes;The modified manometer silicon dioxide is by city The nano silicon dioxide sold and the surface modifier of its weight 3% are mixed to get, and the surface modifier is by KH550, ethanol, acetone With barium hydroxide according to weight ratio 3:80:2:1 ratio mixes;
Further, the preparation method of the epoxy modified silicone resin is:
1)Each material is weighed according to above-mentioned ratio, then mixes phenyl chlorosilane, methylchlorosilane, toluene and butanol Acetone is added afterwards to stir evenly, it is spare;
2)Epoxy resin and n-butyl acetate are mixed, heating dissolves epoxy resin, is then cooled to 40 DEG C, and will step Rapid 1)The mixture finally obtained is added thereto, and then heats to 170 DEG C of half for being condensed to original volume, that is, epoxy is made and changes Property organic siliconresin;
Further, according to weight ratio, novolac epoxy resin, 1.5 part of polybutadiene of the epoxy resin by 4 parts Epoxy resin, 0.8 part of diisocyanate, 0.5 part of modified manometer silicon dioxide and 0.5 part of modified silicasol are made, institute It is to be mixed to get commercially available nano silicon dioxide and the surface modifier of its weight 3% to state modified manometer silicon dioxide, which changes Property agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3:80:2:1 ratio mixes;The modified silicon is molten Glue is silicon powder, the crystal whisker of hexa potassium titanate and silicon of Ludox weight 1% that Ludox weight 2% is sequentially added in commercially available Ludox The sodium acetate of sol weight 0.8%, then stirs the mixture that 1h is obtained under the conditions of 70 DEG C;
Further, the preparation method of the epoxy resin comprises the following steps:
1)Modified manometer silicon dioxide and modified silicasol are prepared respectively, it is spare;
The modified manometer silicon dioxide is to mix commercially available nano silicon dioxide with the surface modifier of its weight 3% Arrive, surface modifier is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3:80:2:1 ratio mixes;
The modified silicasol is silicon powder, the Ludox weight that Ludox weight 2% is sequentially added in commercially available Ludox 1% crystal whisker of hexa potassium titanate and the sodium acetate of Ludox weight 0.8%, then stir the mixture that 1h is obtained under the conditions of 70 DEG C;
2)Each component is weighed according to above-mentioned ratio, after then novolac epoxy resin is melted, adds weigh thereto Polybutadiene epoxy resin and diisocyanate, stirring is after complete melt, then adds step 1 thereto)Obtained modification Nano silicon dioxide and modified silicasol, are made epoxy resin after stirring evenly;
For another example, according to weight ratio, polyurethane fiber used in the polyurethane fiber layer 3 by 76 parts polyether polyol, 28 parts of toluene di-isocyanate(TDI), 7 parts of epoxy resin, 9 parts of propane diols and 13 parts of filler are made, and the filler is by 5 parts Sepiolite cashmere powder, 2 parts of diatomite, 3 parts of modified manometer silicon dioxide and 0.8 part of additive mix, and add Agent is KH570, nano-aluminum hydroxide, acetone and barium hydroxide according to weight ratio 3:0.8:3:0.5 ratio mixes;It is described Modified manometer silicon dioxide is to be mixed to get commercially available nano silicon dioxide and the surface modifier of its weight 3%, which changes Property agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3:80:2:1 ratio mixes;
Further, also containing 1.2 parts of modification hollow glass micropearl in the filler, modified hollow glass micropearl be by Filtering dries to obtain commercially available hollow glass micropearl stands 1h after being mixed with the surface modifier of its weight 3% after, and surface used changes Property agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3:80:2:1 ratio mixes.
Embodiment 2
As shown in the figure, a kind of insulated electric conductor, including metal core 1 and the protective layer for being wrapped in 1 outer layer of metal core, it is described Protective layer is followed successively by electro-insulating rubber layer 2, polyurethane fiber layer 3 and insulating lacquer layer 4 from inside to outside, and the polyurethane fiber layer 3 is The polyurethane fiber cloth that polyurethane fiber braiding forms.
Above be the present embodiment basic embodiment, can more than on the basis of be further optimized, improve and limit:
Such as, according to weight ratio, the electro-insulating rubber layer 2 by 38 parts of mixing rubber matrix, 6 parts of reinforcing fiber, 3 parts Vulcanizing agent, 5 parts of additive and 3 parts of filler are kneaded under the conditions of 80 DEG C and form, wherein, mixing rubber matrix is by the third rubber of second Glue, fluorubber, silicon rubber and pitch are by weight 10:5:3:1 ratio is kneaded to obtain, and reinforcing fiber is fine by polyurethanes Dimension, polyvinyl chloride fibre and glass fibre are by weight 2:1:4 ratio mixes, and additive is by sepiolite cashmere powder, modification Nano-titanium dioxide and ethyl orthosilicate are by weight 10:2:18 ratio is made, filler by mica powder, modified silicon powder, Modified pearl rock powder and simple substance silica flour are by weight 8:4:2:1 ratio mixes;The modified nano-titanium dioxide, modification Silicon powder and modified pearl rock powder are respectively the surface of commercially available nano-titanium dioxide, silicon powder and crushed crude pearlite and its weight 5% Filtering dries to obtain after 2h is stood after modifying agent mixing, and surface modifier used is pressed by KH550, ethanol, acetone and barium hydroxide According to weight ratio 4:80:3:2 ratio mixes;
Further, the preparation method of the additive is:According to weight ratio, 18 parts of ethyl orthosilicates and deionized water are taken According to 1:10 ratio mixing, then the glacial acetic acid of ethyl orthosilicate weight 10%, ethyl orthosilicate weight 5% are sequentially added thereto Carbon dust, 10 parts of sepiolite cashmere powder and 2 parts of modified nano-titanium dioxide be uniformly mixed and reacted, in reaction process, every 20min applies the ultrasonic wave 1min of frequency 370kHz into reaction system, and carrying out ultrafiltration to reaction system after question response obtains To solid powder, it is to obtain additive that finally by solid powder, abundant calcination, which removes carbon dust, under aerobic conditions;The modification is received Rice titanium dioxide is to filter to dry after standing 2h after commercially available nano-titanium dioxide is mixed with the surface modifier of its weight 5% Obtain, surface modifier used is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 4:80:3:2 ratio mixing and Into;
And for example, according to weight ratio, epoxy modified silicone resin, 26 part of acrylic acid of the insulating lacquer layer 4 by 64 parts Resin, 3 parts of pigment, 10 parts of modified filler and 2 parts of dispersant are made, wherein, epoxy modified silicone resin is by 46 parts Epoxy resin, 6 parts of n-butyl acetate, 22 parts of phenyl chlorosilane, 7 parts of methylchlorosilane, 3 parts of acetone, 5 parts of first Benzene and 15 parts of butanol are made, and the modified filler is received by 3 parts of modified meerschaum suede powder, 7 parts of mica powder and 5 parts of modification Rice silica mixes, the modified meerschaum suede powder is commercially available sepiolite cashmere powder and KH570, nano-aluminum hydroxide, Acetone and barium hydroxide are according to weight ratio 100:5:2:10:1 ratio mixes;The modified manometer silicon dioxide is by city The nano silicon dioxide sold and the surface modifier of its weight 5% are mixed to get, and the surface modifier is by KH550, ethanol, acetone With barium hydroxide according to weight ratio 4:80:3:2 ratio mixes;
Further, the preparation method of the epoxy modified silicone resin is:
1)Each material is weighed according to above-mentioned ratio, then mixes phenyl chlorosilane, methylchlorosilane, toluene and butanol Acetone is added afterwards to stir evenly, it is spare;
2)Epoxy resin and n-butyl acetate are mixed, heating dissolves epoxy resin, is then cooled to 40 DEG C, and will step Rapid 1)The mixture finally obtained is added thereto, and then heats to 190 DEG C of half for being condensed to original volume, that is, epoxy is made and changes Property organic siliconresin;
Further, according to weight ratio, novolac epoxy resin, 1.5 part of polybutadiene of the epoxy resin by 4 parts Epoxy resin, 0.8 part of diisocyanate, 0.5 part of modified manometer silicon dioxide and 0.5 part of modified silicasol are made, institute It is to be mixed to get commercially available nano silicon dioxide and the surface modifier of its weight 5% to state modified manometer silicon dioxide, which changes Property agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 4:80:3:2 ratio mixes;The modified silicon is molten Glue is silicon powder, the crystal whisker of hexa potassium titanate and silicon of Ludox weight 2% that Ludox weight 3% is sequentially added in commercially available Ludox The sodium acetate of sol weight 1%, then stirs the mixture that 2h is obtained under the conditions of 80 DEG C;
Further, the preparation method of the epoxy resin comprises the following steps:
1)Modified manometer silicon dioxide and modified silicasol are prepared respectively, it is spare;
The modified manometer silicon dioxide is to mix commercially available nano silicon dioxide with the surface modifier of its weight 5% Arrive, surface modifier is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 4:80:3:2 ratio mixes;
The modified silicasol is silicon powder, the Ludox weight that Ludox weight 3% is sequentially added in commercially available Ludox 2% crystal whisker of hexa potassium titanate and the sodium acetate of Ludox weight 1%, then stir the mixture that 2h is obtained under the conditions of 80 DEG C;
2)Each component is weighed according to above-mentioned ratio, after then novolac epoxy resin is melted, adds weigh thereto Polybutadiene epoxy resin and diisocyanate, stirring is after complete melt, then adds step 1 thereto)Obtained modification Nano silicon dioxide and modified silicasol, are made epoxy resin after stirring evenly;
For another example, according to weight ratio, polyurethane fiber used in the polyurethane fiber layer 3 by 78 parts polyether polyol, 30 parts of toluene di-isocyanate(TDI), 9 parts of epoxy resin, 11 parts of propane diols and 15 parts of filler are made, and the filler is by 7 parts Sepiolite cashmere powder, 3 parts of diatomite, 4 parts of modified manometer silicon dioxide and 1 part of additive mix, and additive It is KH570, nano-aluminum hydroxide, acetone and barium hydroxide according to weight ratio 4:1:4:0.6 ratio mixes;The modification Nano silicon dioxide is to be mixed to get commercially available nano silicon dioxide and the surface modifier of its weight 5%, the surface modifier By KH550, ethanol, acetone and barium hydroxide according to weight ratio 4:80:3:2 ratio mixes;
Further, also containing 1.4 parts of modification hollow glass micropearl in the filler, modified hollow glass micropearl be by Filtering dries to obtain commercially available hollow glass micropearl stands 2h after being mixed with the surface modifier of its weight 5% after, and surface used changes Property agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3:80:3:2 ratio mixes.
Embodiment 3
As shown in the figure, a kind of insulated electric conductor, including metal core 1 and the protective layer for being wrapped in 1 outer layer of metal core, it is described Protective layer is followed successively by electro-insulating rubber layer 2, polyurethane fiber layer 3 and insulating lacquer layer 4 from inside to outside, and the polyurethane fiber layer 3 is The polyurethane fiber cloth that polyurethane fiber braiding forms.
Above be the present embodiment basic embodiment, can more than on the basis of be further optimized, improve and limit:
Such as, according to weight ratio, the electro-insulating rubber layer 2 by 37 parts of mixing rubber matrix, 5 parts of reinforcing fiber, 2.5 parts Vulcanizing agent, 4.5 parts of additive and 2.5 parts of filler be kneaded and form under the conditions of 70 DEG C, wherein, mixing rubber matrix by EP rubbers, fluorubber, silicon rubber and pitch are by weight 9:4.5:2.5:1 ratio is kneaded to obtain, and reinforcing fiber is by poly- ammonia Carbamate fiber, polyvinyl chloride fibre and glass fibre are by weight 2:1:4 ratio mixes, and additive is by sepiolite Suede powder, modified nano-titanium dioxide and ethyl orthosilicate are by weight 9:1.5:17 ratio is made, filler by mica powder, change Property silicon powder, modified pearl rock powder and simple substance silica flour by weight 7.5:3.5:1.5:1 ratio mixes;The modification is received Rice titanium dioxide, modified silicon powder and modified pearl rock powder are respectively commercially available nano-titanium dioxide, silicon powder and crushed crude pearlite Filtering dries to obtain after 1.5h is stood after being mixed with the surface modifier of its weight 4%, and surface modifier used is by KH550, second Alcohol, acetone and barium hydroxide are according to weight ratio 3.5:80:2.5:1.5 ratio mixes;
Further, the preparation method of the additive is:According to weight ratio, 17 parts of ethyl orthosilicates and deionized water are taken According to 1:9 ratio mixing, then the glacial acetic acid of ethyl orthosilicate weight 10%, ethyl orthosilicate weight 5% are sequentially added thereto Carbon dust, 9 parts of sepiolite cashmere powder and 1.5 parts of modified nano-titanium dioxide be uniformly mixed and reacted, in reaction process, every 20min applies the ultrasonic wave 1min of frequency 360kHz into reaction system, and carrying out ultrafiltration to reaction system after question response obtains To solid powder, it is to obtain additive that finally by solid powder, abundant calcination, which removes carbon dust, under aerobic conditions;The modification is received Rice titanium dioxide is to filter to dry in the air after standing 1.5h after commercially available nano-titanium dioxide is mixed with the surface modifier of its weight 4% Dry to obtain, surface modifier used is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3.5:80:2.5:1.5 ratio Example mixes;
And for example, according to weight ratio, epoxy modified silicone resin, 25 part of acrylic acid of the insulating lacquer layer 4 by 62 parts Resin, 2.5 parts of pigment, 9 parts of modified filler and 1.5 parts of dispersant are made, wherein, epoxy modified silicone resin is by 45 Part epoxy resin, 5.5 parts of n-butyl acetate, 21 parts of phenyl chlorosilane, 6.5 parts of methylchlorosilane, the third of 2.5 parts Ketone, 4.5 parts of toluene and 14 parts of butanol are made, modified meerschaum suede powder, 6.5 part of cloud of the modified filler by 2.5 parts Female powder and 4.5 parts of modified manometer silicon dioxide mix, the modified meerschaum suede powder for commercially available sepiolite cashmere powder with KH570, nano-aluminum hydroxide, acetone and barium hydroxide are according to weight ratio 100:4.5:1.5:9:0.9 ratio mixes;Institute It is to be mixed to get commercially available nano silicon dioxide and the surface modifier of its weight 4% to state modified manometer silicon dioxide, the surface Modifying agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3.5:80:2.5:1.5 ratio mixes;
Further, the preparation method of the epoxy modified silicone resin is:
1)Each material is weighed according to above-mentioned ratio, then mixes phenyl chlorosilane, methylchlorosilane, toluene and butanol Acetone is added afterwards to stir evenly, it is spare;
2)Epoxy resin and n-butyl acetate are mixed, heating dissolves epoxy resin, is then cooled to 40 DEG C, and will step Rapid 1)The mixture finally obtained is added thereto, and then heats to 180 DEG C of half for being condensed to original volume, that is, epoxy is made and changes Property organic siliconresin;
Further, according to weight ratio, novolac epoxy resin, 1.5 part of polybutadiene of the epoxy resin by 4 parts Epoxy resin, 0.8 part of diisocyanate, 0.5 part of modified manometer silicon dioxide and 0.5 part of modified silicasol are made, institute It is to be mixed to get commercially available nano silicon dioxide and the surface modifier of its weight 4% to state modified manometer silicon dioxide, which changes Property agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3.5:80:2.5:1.5 ratio mixes;It is described to change Property Ludox is silicon powder, six metatitanic acids of Ludox weight 1.5% that Ludox weight 2.5% is sequentially added in commercially available Ludox The sodium acetate of potassium whisker and Ludox weight 0.9%, then stirs the mixture that 1.5h is obtained under the conditions of 75 DEG C;
Further, the preparation method of the epoxy resin comprises the following steps:
1)Modified manometer silicon dioxide and modified silicasol are prepared respectively, it is spare;
The modified manometer silicon dioxide is to mix commercially available nano silicon dioxide with the surface modifier of its weight 4% Arrive, surface modifier is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3.5:80:2.5:1.5 ratio mixing and Into;
The modified silicasol is silicon powder, the Ludox weight that Ludox weight 2.5% is sequentially added in commercially available Ludox The crystal whisker of hexa potassium titanate of amount 1.5% and the sodium acetate of Ludox weight 0.9%, then stirred under the conditions of 75 DEG C 1.5h obtain it is mixed Compound;
2)Each component is weighed according to above-mentioned ratio, after then novolac epoxy resin is melted, adds weigh thereto Polybutadiene epoxy resin and diisocyanate, stirring is after complete melt, then adds step 1 thereto)Obtained modification Nano silicon dioxide and modified silicasol, are made epoxy resin after stirring evenly;
For another example, according to weight ratio, polyurethane fiber used in the polyurethane fiber layer 3 by 77 parts polyether polyol, 29 parts of toluene di-isocyanate(TDI), 8 parts of epoxy resin, 10 parts of propane diols and 14 parts of filler are made, and the filler is by 6 parts Sepiolite cashmere powder, 2.5 parts of diatomite, 3.5 parts of modified manometer silicon dioxide and 0.9 part of additive mix, and Additive is KH570, nano-aluminum hydroxide, acetone and barium hydroxide according to weight ratio 3.5:0.9:3.5:0.55 ratio mixing Form;The modified manometer silicon dioxide is to mix commercially available nano silicon dioxide with the surface modifier of its weight 4% Arrive, the surface modifier is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3.5:80:2.5:1.5 ratio mixing Form;
Further, also containing 1.3 parts of modification hollow glass micropearl in the filler, modified hollow glass micropearl be by Filtering dries to obtain commercially available hollow glass micropearl stands 1.5h after being mixed with the surface modifier of its weight 4% after, surface used Modifying agent is by KH550, ethanol, acetone and barium hydroxide according to weight ratio 3.5:80:2.5:1.5 ratio mixes.

Claims (2)

1. a kind of insulated electric conductor, including metal core(1)Be wrapped in metal core(1)The protective layer of outer layer, the protective layer Electro-insulating rubber layer is followed successively by from inside to outside(2), polyurethane fiber layer(3)And insulating lacquer layer(4), the polyurethane fiber layer(3) The polyurethane fiber cloth formed for polyurethane fiber braiding, it is characterised in that:According to weight ratio, the polyurethane fiber layer(3) Polyurethane fiber used is by 76-78 parts of polyether polyol, 28-30 parts of toluene di-isocyanate(TDI), 7-9 parts of asphalt mixtures modified by epoxy resin Fat, 9-11 parts of propane diols and 13-15 parts of filler are made, sepiolite cashmere powder of the filler by 5-7 parts, 2-3 parts of diatom Soil, 3-4 parts of modified manometer silicon dioxide and 0.8-1 parts of additive mix, and additive is KH570, nanometer hydrogen-oxygen Change aluminium, acetone and barium hydroxide according to weight ratio 3-4:0.8-1:3-4:The ratio of 0.5-0.6 mixes;The modified Nano Silica is to be mixed to get the surface modifier of commercially available nano silicon dioxide and its weight 3-5%, the surface modifier by KH550, ethanol, acetone and barium hydroxide are according to weight ratio 3-4:80:2-3:The ratio of 1-2 mixes.
A kind of 2. insulated electric conductor according to claim 1, it is characterised in that:Also containing 1.2-1.4 parts in the filler Modified hollow glass micropearl, modified hollow glass micropearl are to be modified the surface of commercially available hollow glass micropearl and its weight 3-5% Agent mixing after stand 1-2h after filtering dry to obtain, surface modifier used by KH550, ethanol, acetone and barium hydroxide according to Weight ratio 3-4:80:2-3:The ratio of 1-2 mixes.
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