CN103435893A - Transmission line lead anti-icing compound coil based on ferrite and preparation method thereof - Google Patents
Transmission line lead anti-icing compound coil based on ferrite and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a transmission line lead anti-icing compound coil based on ferrite and a preparation method thereof, and relates to the fields of a magnetic heating material and safe operation of a power grid, in order to solve the problems of low heat productivity, high cost, large load and fixed form of the anti-icing material of a transmission conductor. The product is prepared from ferrite magnetic material powder and polymer base stock. The method comprises the following steps: weighing the ferrite magnetic material powder, the polymer base stock, a plasticizer, a lubricating agent and an antioxidant; and extruding and drying by an extruder after stirring, so as to obtain the compound coil of which the thickness is 2-10mm, wherein the loss at normal temperature is less than 5 W/kg, the saturation flux density when the temperature is lower than 0 DEG C can be up to 0.85T, and the single calorific value at -5 DEG C to 0 DEG C can be up to 32 W/kg under an alternating magnetic field of 50Hz. Thus, the anti-icing compound coil can be applied to the fields of the magnetic heating material and safe operation of the power grid.
Description
Technical field
The present invention relates to magnetic exothermic material and electric power netting safe running field, particularly a kind of based on ice-covering-proof composite sheet material of ferritic transmission line wire and preparation method thereof.
Background technology
Because being subject to, ice and snow harm in winter easily causes that serious broken string, shaft tower collapse to transmitting line usually, large-area power-cuts, the accident such as ration the power supply.Not only the safe operation of China's power system caused to serious threat, be also difficulties anxious to be resolved in power system research always.At present, carry out tens kinds of anti-, de-icing method researchs and application both at home and abroad, wherein adopt the ice-covering-proof technology of low curie point temperature magneticsubstance, because it has to vary with temperature, automatically realize anti-icing characteristics, arouse great concern.
The anti-icing device of low curie point ferromagnetic material is rolled in to the transmission pressure surface, and when envrionment temperature, during lower than the material Curie temperature, ferromagnetic material produces very strong magnetic induction density under the action of alternating magnetic field of transmitting line, produces the loss heat release, thereby realizes ice-covering-proof effect.The low curie point magneticsubstance of exploitation is mainly ferrous alloy at present, mainly comprises La-Fe-Si-X, La-Fe-Al-X, Fe-Ni-x system, Fe-Zr system, Fe-Sn system etc., and the form of employing mainly comprises ferromagnetic wires, preformed armor rods, anti-icing sleeve etc.No matter be the anti-icing device of which kind of form, form by magnetic core and metal cover two portions.
The existing patent No. is 200910091987.1, name is called the Chinese invention patent of " a kind of heating functional coating for the transmission line wire Anti-freezing ", this patent discloses a kind of heating functional coating for the transmission line wire Anti-freezing, this coating is by the ferromagnetic substance La-Fe-Si-X with low Curie temperature, La-Fe-Al-X, Fe-Cr-B-X system, Fe-Ni-x system, Fe-Zr system, non-retentive alloy powder and the filmogen (epoxy resin E20 or Hensel step 7071 resins) of the low Curie temperature such as Fe-Sn system and/or Ni-Cu system are made, should low its Curie temperature of Curie temperature ferromagnetic material it be 0～80 ℃, substance calorific value in the time of-5 ℃～0 ℃ is up to 20W/kg, saturation induction density in the time of 0 ℃ is up to 0.52T, above data presentation, although the non-retentive alloy powder of the low Curie temperature in this patent has certain ice-covering-proof effect, but still have following shortcoming: (1) is because the non-retentive alloy powder of this low Curie temperature mainly adopts ferrous alloy, cost is high, and increased line load, (2) its Curie temperature is 0～80 ℃, still higher, makes when the temperature except winter is higher and also can produce line loss, and this has caused unnecessary consumption undoubtedly, and in addition, the ferrous alloy that mainly it adopts may participate in conduction, also increases line loss, saturation induction density in the time of (3) 0 ℃ lower (the highest 0.52T), the substance calorific value in the time of-5 ℃～0 ℃ lower (20W/Kg), its thermal value can not reach the requirement of complete deicing, and therefore ice-covering-proof effect is still poor, (4) form is fixed, and can not arbitrarily adjust thickness according to the adverse weather condition of sudden change.
Summary of the invention
The present invention is for solving the problem that the ice-covering-proof material thermal value of transmission pressure is low, cost is high, load is large and form is fixing, and provides based on ice-covering-proof composite sheet material of ferritic transmission line wire and preparation method thereof.
Of the present invention based on the ice-covering-proof composite sheet material of ferritic transmission line wire, by mass fraction, ferrite magnetic material powder and 15～25 parts of polymer base-materials by 60～80 parts are prepared from, and described is 2mm～10mm based on the ice-covering-proof composite sheet material thickness of ferritic transmission line wire; Wherein said ferrite magnetic material powder is Curie temperature at the low Curie temperature magneticsubstance of 0～30 ℃.
Preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire of the present invention carries out according to the following steps:
One, take 60～80 parts of ferrite magnetic material powders, 15～25 parts of polymer base-materials, 5～10 parts of softening agent, 0.2～2 part of lubricant and 0.2～2 part of antioxidant by mass fraction; Wherein said ferrite magnetic material powder is Curie temperature at the low Curie temperature magneticsubstance of 0～30 ℃.
Two, 60～80 parts of ferrite magnetic material powders that step 1 taken, 15～25 parts of polymer base-materials, 5～10 parts of softening agent, 0.2～2 part of lubricant and 0.2～2 part of antioxidant join in stirrer, after rotating speed is to stir 15min～25min under 400rpm～600rpm, extrude, dry through forcing machine, last rolling, obtain thickness and be 2mm～10mm based on the ice-covering-proof composite sheet material of ferritic transmission line wire.
The present invention adopts the ferrite magnetic material will hang down Curie temperature to make powder and the polymer base-material is compound makes ice-covering-proof coiled material, this ice-covering-proof composite sheet material is wrapped in to the transmission pressure surface, utilize ferrite magnetic material to produce the loss heat release under low temperature and action of alternating magnetic field, conductor temperature is maintained near Curie temperature, and utilize the polymer surface hydrophobicity to realize that transmission pressure is ice-covering-proof.Composite sheet material of the present invention has the following advantages: the Curie temperature of (1), ferrite magnetic material powder of the present invention is at 0～30 ℃, and Curie temperature is low, does not participate in conduction, and under normal temperature, loss is less than 5W/kg, has reduced the line consumption; (2), the saturation induction density of ferrite magnetic material powder of the present invention is relatively lower even close to 0 when envrionment temperature is more than 0 ℃, and envrionment temperature during lower than 0 ℃ the magnetic induction density of this material improve fast, saturation induction density>650mT, guarantee in temperature to be not generate heat more than 0 ℃ the time, do not produce the line consumption, and envrionment temperature during lower than 0 ℃ saturation induction density can reach 0.85T, illustrate that ferrite magnetic material powder of the present invention has good magnetic property; (3), ferrite magnetic material powder of the present invention under the 50Hz action of alternating magnetic field ,-5 ℃～0 ℃ substance calorific value is greater than 26W/kg, is up to 32W/kg, thermal value is large, can reach the effect of deicing; (4), the polymer base-material that adopts of the present invention has good hydrophobicity, has stronger ice-covering-proof left and right; (5), web form is fixing, can when weather condition suddenly change, arbitrarily increase winding thickness, reaches the deicing effect; (6), the ferrite magnetic material cost is low, load is light.And when composite sheet material of the present invention is used, construction comparatively simply and, without carrying out any track remodelling, application prospect is very extensive, can be used for magnetic exothermic material and electric power netting safe running field.
Embodiment
Embodiment one: present embodiment based on the ice-covering-proof composite sheet material of ferritic transmission line wire, by mass fraction, ferrite magnetic material powder and 15～25 parts of polymer base-materials by 60～80 parts are prepared from, described is 2mm～10mm based on the ice-covering-proof composite sheet material thickness of ferritic transmission line wire; Wherein said ferrite magnetic material powder is Curie temperature at the low Curie temperature magneticsubstance of 0～30 ℃.
The composite sheet material of present embodiment has the following advantages: the Curie temperature of the ferrite magnetic material powder of (1), present embodiment is at 0～30 ℃, and Curie temperature is low, does not participate in conduction, and under normal temperature, loss is less than 5W/kg, has reduced the line consumption; (2), the saturation induction density of the ferrite magnetic material powder of present embodiment is relatively lower even close to 0 when envrionment temperature is more than 0 ℃, and envrionment temperature during lower than 0 ℃ the magnetic induction density of this material improve fast, saturation induction density>650mT, guarantee in temperature to be not generate heat more than 0 ℃ the time, do not produce the line consumption, and envrionment temperature during lower than 0 ℃ saturation induction density can reach 0.85T, illustrate that the ferrite magnetic material powder of present embodiment has good magnetic property; (3), the ferrite magnetic material powder of present embodiment under the 50Hz action of alternating magnetic field ,-5 ℃～0 ℃ substance calorific value is greater than 26W/kg, is up to 32W/kg, thermal value is large, can reach the effect of deicing; (4), the polymer base-material that adopts of present embodiment has good hydrophobicity, has stronger ice-covering-proof left and right; (5), web form is fixing, can when weather condition suddenly change, arbitrarily increase winding thickness, reaches the deicing effect; (6), the ferrite magnetic material cost is low, load is light.And when the composite sheet material of present embodiment is used, construction comparatively simply and, without carrying out any track remodelling, application prospect is very extensive, can be used for magnetic exothermic material and electric power netting safe running field.
Embodiment two: present embodiment is different from embodiment one: based on the ice-covering-proof composite sheet material of ferritic transmission line wire, by mass fraction, ferrite magnetic material powder and the 20 parts of polymer base-materials by 70 parts are prepared from, and described is 4mm based on the ice-covering-proof composite sheet material thickness of ferritic transmission line wire.Other step and parameter are identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one or two: described ferrite magnetic material powder is that ferric oxide and 9～13 parts of metal oxides by 18～25 parts are prepared from by mass fraction, and described ferrite magnetic material powder is the low Curie temperature magneticsubstance that Curie temperature is 0～30 ℃.Other step and parameter are identical with embodiment one or two.
Embodiment four: present embodiment is different from one of embodiment one to three: described metal oxide is a kind of in nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide, cupric oxide and titanium oxide or several mixture wherein.Other step and parameter are identical with one of embodiment one to three.
When the metal oxide in present embodiment is mixture, each component is mixed in any proportion
Embodiment five: present embodiment is different from one of embodiment one to four: described polymer base-material is a kind of in polythene material, synthetic rubber and synthetic resins or several mixture wherein.Other step and parameter are identical with one of embodiment one to four.
When the polymer base-material in present embodiment is mixture, each component is mixed in any proportion.
Embodiment six: the preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire of present embodiment carries out according to the following steps:
One, take 60～80 parts of ferrite magnetic material powders, 15～25 parts of polymer base-materials, 5～10 parts of softening agent, 0.2～2 part of lubricant and 0.2～2 part of antioxidant by mass fraction; Wherein said ferrite magnetic material powder is Curie temperature at the low Curie temperature magneticsubstance of 0～30 ℃.
Two, 60～80 parts of ferrite magnetic material powders that step 1 taken, 15～25 parts of polymer base-materials, 5～10 parts of softening agent, 0.2～2 part of lubricant and 0.2～2 part of antioxidant join in stirrer, after rotating speed is to stir 15min～25min under 400rpm～600rpm, extrude, dry through forcing machine, last rolling, obtain thickness and be 2mm～10mm based on the ice-covering-proof composite sheet material of ferritic transmission line wire.
Present embodiment adopts the ferrite magnetic material will hang down Curie temperature to make powder and the polymer base-material is compound makes ice-covering-proof coiled material, this ice-covering-proof composite sheet material is wrapped in to the transmission pressure surface, utilize ferrite magnetic material to produce the loss heat release under low temperature and action of alternating magnetic field, conductor temperature is maintained near Curie temperature, and utilize the polymer surface hydrophobicity to realize that transmission pressure is ice-covering-proof.The composite sheet material of present embodiment has the following advantages: the Curie temperature of the ferrite magnetic material powder of (1), present embodiment is at 0～30 ℃, and Curie temperature is low, does not participate in conduction, and under normal temperature, loss is less than 5W/kg, has reduced the line consumption; (2), the saturation induction density of the ferrite magnetic material powder of present embodiment is relatively lower even close to 0 when envrionment temperature is more than 0 ℃, and envrionment temperature during lower than 0 ℃ the magnetic induction density of this material improve fast, saturation induction density>650mT, guarantee in temperature to be not generate heat more than 0 ℃ the time, do not produce the line consumption, and envrionment temperature during lower than 0 ℃ saturation induction density can reach 0.85T, illustrate that the ferrite magnetic material powder of present embodiment has good magnetic property; (3), the ferrite magnetic material powder of present embodiment under the 50Hz action of alternating magnetic field ,-5 ℃～0 ℃ substance calorific value is greater than 26W/kg, is up to 32W/kg, thermal value is large, can reach the effect of deicing; (4), the polymer base-material that adopts of present embodiment has good hydrophobicity, has stronger ice-covering-proof left and right; (5), web form is fixing, can when weather condition suddenly change, arbitrarily increase winding thickness, reaches the deicing effect; (6), the ferrite magnetic material cost is low, load is light.And when the composite sheet material of present embodiment is used, construction comparatively simply and, without carrying out any track remodelling, application prospect is very extensive, can be used for magnetic exothermic material and electric power netting safe running field.
Embodiment seven: present embodiment is different from embodiment six: in step 1, by mass fraction, take 70 parts of ferrite magnetic material powders and 20 parts of polymer base-materials.Other step and parameter are identical with embodiment six.
Embodiment eight: present embodiment is different from embodiment six or seven: the ferrite magnetic material powder described in step 1 is ferric oxide and 9～13 parts of metal oxides employing dry process by 18～25 parts by mass fraction, through ball milling mixing, moulding and sintering, be prepared from, described ferrite magnetic material powder is the low Curie temperature magneticsubstance that Curie temperature is 0～30 ℃.Other step and parameter are identical with embodiment six or seven.
Ferrite Material, because have high resistivity and higher Curie temperature, is applied widely in fields such as electronics, control automatically, microwave technology, robot calculator for many years.At present low Curie temperature Ferrite Material becomes study hotspot in warm material direction for cancer, its Curie temperature is 40～50 ℃, method is to adopt the ferrite implantation tumour affected part that will have suitable Curie temperature, additional suitable alternating magnetic field, ferrite will be continually and steadily in a certain temperature range, thus kill cancer cell and do not injure normal cell.But also there are some technical barriers urgently to be resolved hurrily in this material, externally-applied magnetic field as larger as this material require (50KHz left and right), just can make its thermal value increase, thereby reach the effect of kill cancer cell, and temperature stability is bad, and heat generation is not ideal enough.
The ferrite magnetic material powder of present embodiment is under the 50Hz action of alternating magnetic field, and-5 ℃～0 ℃ substance calorific value is greater than 26W/kg, is up to 32W/kg, and thermal value is large.
Embodiment nine: present embodiment is different from one of embodiment six to eight: the ferrite magnetic material powder described in step 1 is that ferric oxide and 9～13 parts of wet processings such as metal oxides employing chemical coprecipitation, hydrothermal method or sol-gel method by 18～25 parts are prepared from by mass fraction, and described ferrite magnetic material powder is the low Curie temperature magneticsubstance that Curie temperature is 0～30 ℃.Other step and parameter are identical with one of embodiment six to eight.
Ferrite Material, because have high resistivity and higher Curie temperature, is applied widely in fields such as electronics, control automatically, microwave technology, robot calculator for many years.At present low Curie temperature Ferrite Material becomes study hotspot in warm material direction for cancer, its Curie temperature is 40～50 ℃, method is to adopt the ferrite implantation tumour affected part that will have suitable Curie temperature, additional suitable alternating magnetic field, ferrite will be continually and steadily in a certain temperature range, thus kill cancer cell and do not injure normal cell.But also there are some technical barriers urgently to be resolved hurrily in this material, externally-applied magnetic field as larger as this material require (50KHz left and right), just can make its thermal value increase, thereby reach the effect of kill cancer cell, and temperature stability is bad, and heat generation is not ideal enough.
The ferrite magnetic material powder of present embodiment is under the 50Hz action of alternating magnetic field, and-5 ℃～0 ℃ substance calorific value is greater than 26W/kg, is up to 32W/kg, and thermal value is large.
Embodiment ten: present embodiment is different from one of embodiment six to nine: the metal oxide described in step 1 is one or more the mixture in nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide, cupric oxide and titanium oxide, and the polymer base-material described in step 1 is a kind of in polythene material, synthetic rubber and synthetic resins or several mixture wherein.Other step and parameter are identical with one of embodiment six to nine.
When the metal oxide in present embodiment is mixture, each component is mixed in any proportion.
When the polymer base-material in present embodiment is mixture, each component is mixed in any proportion.
With following verification experimental verification beneficial effect of the present invention:
Test one, the preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire carry out according to the following steps:
One, take 80 parts of Fe by mass fraction
2o
3, 20 parts of zinc oxide and 17 parts of manganese oxide, after mixing, add deionized water to carry out wet-milling, wherein the mass ratio of ball, material and ratio is 3:2:1, Ball-milling Time is the 20h post-drying, then carry out sintering, 1230 ℃ of sintering temperature positions, sintering time is 3.5h, then carry out ball mill pulverizing under the condition that is 3:2 in ratio of grinding media to material, the ferrite magnetic material powder that then to obtain Curie temperature be 0～30 ℃;
Two, take by mass fraction the ferrite magnetic material powder that 70 parts of step 1 obtain, 20 parts of Low Density Polyethylenes, 9.5 part dioctyl phthalate (DOP), 0.2 part stearic acid and 2 parts of antioxidants, then join in stirrer, at rotating speed, be that after stirring 20min under 500rpm, blowing goes out stirrer, then through the twin screw extruder extrusion moulding, the rotating speed of forcing machine material bar is 45rpm, the barrel zone temperature of forcing machine is 180 ℃, then after water tank is cooling, by lift, promoted, and be drawn to oven for drying through two rods rapidly, material after finally adopting winder to moulding carries out rolling, obtain the composite sheet material that thickness is 4mm, described oxidation inhibitor is mixed for 1:1 in mass ratio by phenols primary antioxidant 1010 and phenols auxiliary antioxidant 168.
(1), Performance Detection:
Adopt vibration sample magnetometer method to be detected testing in one the ferrite magnetic material powder that step 1 obtains, obtain 21.5 ℃ of its Curie temperature, 0 ℃ of saturation induction density 0.85T, substance calorific value 32W/kg.
(2), anti-icing effect detection:
Test one composite sheet material obtained is wrapped on the LGJ-400/50 transmitting line, winding of single layer, logical 180A electric current, test conditions is that temperature on average is-3.5 ℃, the lowest temperature-10 ℃, mean wind speed is 3m/s, and wire is icing not, and this coiled material has obvious anti-icing effect.
Test two, the preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire carry out according to the following steps:
One, take 80 parts of Fe by mass fraction
2o
3, 19 parts of cupric oxide, 20 parts of zinc oxide and 1.2 parts of g titanium oxide, after mixing, add deionized water to carry out wet-milling, wherein the mass ratio of ball, material and ratio is 3:2:1, Ball-milling Time is the 20h post-drying, then carry out sintering, 1120 ℃ of sintering temperature positions, sintering time is 3.5h, then carry out ball mill pulverizing under the condition that is 3:2 in ratio of grinding media to material, the ferrite magnetic material powder that then to obtain Curie temperature be 0～30 ℃;
Two, take by mass fraction the ferrite magnetic material powder that 70 parts of step 1 obtain, 20 parts of Low Density Polyethylenes, 9.5 part dioctyl phthalate (DOP), 0.2 part stearic acid and 2 parts of antioxidants, then join in stirrer, at rotating speed, be that after stirring 20min under 500rpm, blowing goes out stirrer, then through the twin screw extruder extrusion moulding, the rotating speed of forcing machine material bar is 45rpm, the barrel zone temperature of forcing machine is 180 ℃, then after water tank is cooling, by lift, promoted, and be drawn to oven for drying through two rods rapidly, material after finally adopting winder to moulding carries out rolling, obtain the composite sheet material that thickness is 4mm, described oxidation inhibitor is mixed for 1:1 in mass ratio by phenols primary antioxidant 1010 and phenols auxiliary antioxidant 168.
(1), Performance Detection:
Adopt vibration sample magnetometer method, detected testing in one the ferrite magnetic material powder that step 1 obtains, obtain 20 ℃ of its Curie temperature, 0 ℃ of saturation induction density 0.65T, substance calorific value 28W/kg.
(2), anti-icing effect detection:
Test one composite sheet material obtained is wrapped on the LGJ-400/50 transmitting line to winding of single layer mm, logical 180A electric current, test conditions is that temperature on average is-3.5 ℃, the lowest temperature-10 ℃, and mean wind speed is 3m/s, wire is icing not, and this coiled material has obvious anti-icing effect.
Claims (10)
1. based on the ice-covering-proof composite sheet material of ferritic transmission line wire, it is characterized in that ferrite magnetic material powder and 15～25 parts of polymer base-materials by 60～80 parts are prepared from by mass fraction based on the ice-covering-proof composite sheet material of ferritic transmission line wire, described is 2mm～10mm based on the ice-covering-proof composite sheet material thickness of ferritic transmission line wire; Wherein said ferrite magnetic material powder is Curie temperature at the low Curie temperature magneticsubstance of 0～30 ℃.
2. according to claim 1 based on the ice-covering-proof composite sheet material of ferritic transmission line wire, it is characterized in that described ferrite magnetic material powder and 20 parts of polymer base-materials by 70 parts are prepared from by mass fraction based on the ice-covering-proof composite sheet material of ferritic transmission line wire, described is 4mm based on the ice-covering-proof composite sheet material thickness of ferritic transmission line wire.
3. according to claim 1 and 2 based on the ice-covering-proof composite sheet material of ferritic transmission line wire, it is characterized in that described ferrite magnetic material powder is that ferric oxide and 9～13 parts of metal oxides by 18～25 parts are prepared from by mass fraction, described ferrite magnetic material powder is the low Curie temperature magneticsubstance that Curie temperature is 0～30 ℃.
4. according to claim 3 based on the ice-covering-proof composite sheet material of ferritic transmission line wire, it is characterized in that described metal oxide is a kind of in nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide, cupric oxide and titanium oxide or several mixture wherein.
5. according to claim 3 based on the ice-covering-proof composite sheet material of ferritic transmission line wire, it is characterized in that described polymer base-material is a kind of in polythene material, synthetic rubber and synthetic resins or several mixture wherein.
6. prepare the method based on the ice-covering-proof composite sheet material of ferritic transmission line wire as claimed in claim 1, it is characterized in that the preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire carries out according to the following steps:
One, take 60～80 parts of ferrite magnetic material powders, 15～25 parts of polymer base-materials, 5～10 parts of softening agent, 0.2～2 part of lubricant and 0.2～2 part of antioxidant by mass fraction; Wherein said ferrite magnetic material powder is Curie temperature at the low Curie temperature magneticsubstance of 0～30 ℃.
Two, 60～80 parts of ferrite magnetic material powders that step 1 taken, 15～25 parts of polymer base-materials, 5～10 parts of softening agent, 0.2～2 part of lubricant and 0.2～2 part of antioxidant join in stirrer, after rotating speed is to stir 15min～25min under 400rpm～600rpm, extrude, dry through forcing machine, last rolling, obtain thickness and be 2mm～10mm based on the ice-covering-proof composite sheet material of ferritic transmission line wire.
7. the preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire according to claim 6, is characterized in that taking 70 parts of ferrite magnetic material powders and 20 parts of polymer base-materials by mass fraction in step 1.
8. according to the described preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire of claim 6 or 7, it is characterized in that the ferrite magnetic material powder described in step 1 is ferric oxide and 9～13 parts of metal oxides employing dry process by 18～25 parts by mass fraction, through ball milling mixing, moulding and sintering, be prepared from, described ferrite magnetic material powder is the low Curie temperature magneticsubstance that Curie temperature is 0～30 ℃.
9. the preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire according to claim 8, it is characterized in that the ferrite magnetic material powder described in step 1 is that ferric oxide and 9～13 parts of wet processings such as metal oxides employing chemical coprecipitation, hydrothermal method or sol-gel method by 18～25 parts are prepared from by mass fraction, described ferrite magnetic material powder is the low Curie temperature magneticsubstance that Curie temperature is 0～30 ℃.
10. the preparation method based on the ice-covering-proof composite sheet material of ferritic transmission line wire according to claim 8, it is characterized in that the metal oxide described in step 1 is one or more the mixture in nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide, cupric oxide and titanium oxide, the polymer base-material described in step 1 is a kind of in polythene material, synthetic rubber and synthetic resins or several mixture wherein.
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| CN105670523A (en) * | 2014-11-18 | 2016-06-15 | 中国科学院兰州化学物理研究所 | Environment-friendly sticking film with photothermal deicing effect |
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| CN110591227A (en) * | 2019-09-23 | 2019-12-20 | 南京航空航天大学 | Intelligent anti-icing material and preparation method and application thereof |
| CN110690021A (en) * | 2019-11-18 | 2020-01-14 | 国网湖南省电力有限公司 | Perovskite-doped lanthanum-manganese oxide anti-icing material and preparation method and application thereof |
| CN112552767A (en) * | 2020-12-14 | 2021-03-26 | 国网湖南省电力有限公司 | Low-Curie-point ferromagnetic anti-icing material suitable for wire and preparation method thereof |
| CN114906877A (en) * | 2022-04-01 | 2022-08-16 | 哈尔滨理工大学 | Preparation method of cobalt ferrite capable of being compounded with LDPE (Low-Density polyethylene) to prepare magnetic nano dielectric medium |
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| CN110591227A (en) * | 2019-09-23 | 2019-12-20 | 南京航空航天大学 | Intelligent anti-icing material and preparation method and application thereof |
| CN110690021A (en) * | 2019-11-18 | 2020-01-14 | 国网湖南省电力有限公司 | Perovskite-doped lanthanum-manganese oxide anti-icing material and preparation method and application thereof |
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