CN101847473B - Semi-dry environmental-protection type insulation filling compound for electrician equipment and preparation process thereof - Google Patents
Semi-dry environmental-protection type insulation filling compound for electrician equipment and preparation process thereof Download PDFInfo
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- CN101847473B CN101847473B CN2010101506046A CN201010150604A CN101847473B CN 101847473 B CN101847473 B CN 101847473B CN 2010101506046 A CN2010101506046 A CN 2010101506046A CN 201010150604 A CN201010150604 A CN 201010150604A CN 101847473 B CN101847473 B CN 101847473B
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Abstract
The invention discloses a semi-dry environmental-protection type insulation filling compound for electrician equipment, which comprises the following components: 40-90 percent of synthetic polypropylene hydrocarbon oil and/or refined white mineral oil, 2-3 percent of demixing inhibitor, 0.5-15 percent of double-layer thermoplastic microballoon of a bilayer structure, 0.05-2 percent of antioxidant, 0.05-2 percent of pour point depressant and 2-15 percent of silicon dioxide, wherein the summation of all the components of the insulation filling compound is 100 percent. The semi-dry environmental-protection type insulation filling compound for the electrician equipment has superior electric property, is in accordance with the conceptions of safety, environmental protection and less oil, and has a wide application prospect in the traditional transformers, cables and other electrician equipment filling due to the unique advantages of energy saving, simple and convenient process, convenient usage, cleanness and no pollution.
Description
Technical field
The invention belongs to the insulation filling compound for electrician equipment preparing technical field, especially relate to a kind of half-dry environment-friendly insulation filling compound for electrician equipment and preparation technology thereof who is widely used in transformer, cable and other electrical equipment.
Background technology
Modern industrial enterprise adopts electric power as the energy widely; Along with improving constantly of China's rapid economy development and living standards of the people; The electric power requirement constantly increases, and the safety and environmental protection problem receives much attention day by day, presses for difficult combustion equipment for power transmission and distribution explosion-proof, free from environmental pollution.The clear and definite guiding theory of China's urban and rural power grids construction and transformation is to few oiling, the development of no oiling.
In cable, adopt the heat molten type filled composite the earliest.And the heat molten type filled composite need be heated to about 90 degree fusing usually and could pressurize in the equipment such as being filled into transformer.There are very big defective in this heat molten type filled composite and fill process thereof, and the high temperature filling can cause the danger that insulating barrier is aging or scald, and the composite consolidation of fusing slowly is prone to drippage, makes loading be difficult to reach 100%; Hot filled composite is met cold when apparatus insulated internal layer infiltrations such as transformer are flowed, and mobile the reduction is even not mobile; Make to fill and be discontented with that the compound cooling after-contraction of filling possibly produce the crack, can not reach the requirement of complete waterproof; Influence product percent of pass, hot in addition pad device is complicated, and technical process is difficult for stable; Energy consumption is big, and the shortcoming of environmental pollution is arranged.
Up to the present report that maximum these kind equipments are most of and use economical insulating oil to fill; The assembling shunt capacitor of tradition filling type; Because between big case shell and cell capaciator, be filled with extremely several thousand kilograms a large amount of flammable insulating oil (transformer oil or alkylbenzene oil) of hundreds of kilogram, product exists easy to leak oil, and is inflammable and explosive under the fault condition; Contaminated environment, defective such as weight is big.The oily formula of this type is filled and also need be refueled at ordinary times, change oil etc., and it is many that maintenance work is wanted relatively.
Reinforcement day by day along with safety and environmental protection consciousness; Inflation aggregation type electric power pad device has appearred; Replace above-mentioned insulating oil with the noninflammability insulating gas; The compound rare environmental protection ideas that does not have oil, but insulating gas under general condition its insulation property are relatively poor with heat dispersion, and gas more is difficult for sealing.Therefore, how selecting suitable insulation gas, reduce the caloric value of product as far as possible, solve problems such as heat radiation, insulation, sealing, is the current greatest problem that faces of inflation aggregation type electric power pad device.
Summary of the invention
One of the object of the invention is to provide a kind of half-dry environment-friendly insulation filling compound for electrician equipment that is widely used in transformer, cable and other electrical equipment, addresses the deficiencies of the prior art.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of half-dry environment-friendly insulation filling compound for electrician equipment comprises following component: synthetic polypropylene hydrocarbon ils and/or refining white mineral oil, delamination inhibitor, thermoplasticity double-decker microballoon, antioxidant, pour-point depressant, silicon dioxide; Wherein the quality proportioning of each component is: synthetic polypropylene hydrocarbon ils and/or refining white mineral oil account for 40%～90% of said insulation filling compound gross mass; Delamination inhibitor 2%～30%; Thermoplasticity double-decker microballoon 0.5%～15%; Antioxidant 0.05～2%, pour-point depressant 0.05～2%, silicon dioxide 2～15%; Each component sum of said insulation filling compound is 100%.
Preferably: also contain antifungal agent 0.01～0.5%, described antifungal agent is the antifungal agent of 2-octyl group-4-with the thiazoline structure.
More excellent is: described thermoplasticity double-decker microballoon comprises acrylonitrile copolymer housing and hydrocarbon air bag.
More excellent is: described hydrocarbon air bag is that isopentane is the 2-methybutane; Described delamination inhibitor is styrene-ethylene and propylene-based block copolymer or ethylene-propylene rubber solution; Described pour-point depressant composition is polyacrylate or poly alpha olefin class; Described silicon dioxide is the aerosol of hydrophobic type and/or hydrophilic aerosil or silicon dioxide.
More excellent is: described thermoplasticity double-decker microsphere diameter is 10～60 μ m; Density is 0.001～0.04kg/m
3
More excellent is: described antioxidant is liquid phenols or four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
More excellent is: described synthetic polypropylene hydrocarbon ils is poly-a-olefin oil or polyisobutylene oil, and said refining white mineral oil is a hydrocracking mineral oil.
Two of the object of the invention is to provide a kind of preparation technology of half-dry environment-friendly insulation filling compound for electrician equipment.Adopt following technical scheme:
A kind of preparation technology of half-dry environment-friendly insulation filling compound for electrician equipment: comprise the steps:
1) gets the synthetic polypropylene hydrocarbon ils and/or the refining white mineral oil that account for gross mass proportioning 40%～90% and stir, be warming up to 120 ± 10 ℃, keep 2～5h, remove impurity;
(2) will account in the product of gross mass proportioning 2%～30% delamination inhibitor adding step (1), 110 ± 10 ℃ are stirred 1～2h, fully mix delamination inhibitor;
(3) add the silicon dioxide that accounts for gross mass proportioning 2～15%, account for the antioxidant of gross mass proportioning 0.05～2%, account for the pour-point depressant of gross mass proportioning 0.05～2%, account for the antifungal agent of gross mass proportioning 0.01～0.5%, and fully stir;
(4) adding accounts for gross mass proportioning 0.5%～15% thermoplasticity double-decker microballoon, stirs, and makes the half-dry environment-friendly insulation filling compound for electrician equipment, stores for future use.
Preferably: described synthetic polypropylene hydrocarbon ils is poly-a-olefin oil or polyisobutylene oil, and said refining white mineral oil is a hydrocracking mineral oil; Described thermoplasticity double-decker microballoon comprises acrylonitrile copolymer housing and hydrocarbon air bag, and described hydrocarbon air bag is that isopentane is the 2-methybutane; The delamination inhibitor of stating is styrene-ethylene and propylene-based block copolymer or ethylene-propylene rubber solution; Described pour-point depressant composition is polyacrylate or poly alpha olefin class; Described silicon dioxide is the aerosol of hydrophobic type and/or hydrophilic aerosil or silicon dioxide; Described antifungal agent is the antifungal agent of 2-octyl group-4-with the thiazoline structure; Described antioxidant is liquid phenols or four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
The present invention compared with prior art has following advantage and beneficial effect:
(1) realized by of the transformation of oily formula filler to the dry type filler
The capacitor of traditional filling type for example; Since between big case shell and cell capaciator, be filled with extremely several thousand kilograms a large amount of flammable insulating oil (transformer oil or alkylbenzene oil) of hundreds of kilogram, product easy to leak oil, inflammable and explosive under the fault condition; Contaminated environment; Weight is big, and will refuel, change oil etc., it is many that maintenance work is wanted relatively.And compound density of the present invention has only about 0.45g/ml, and the density of insulating oil probably is 0.93g/ml, so that the amount of unit volume has reduced is half the many, has realized that oily formula fills the transformation of filling to half dry type.
(2) environment-friendly semi-dry type
This invents described half dry type filled composite and presents half-dried soft granular structure its enough dried is easy to is simply cleaned with general cleaning cloth.Need not use specific solvent to clean this original characteristic, filling process can reduce the air pollution that solvent evaporation causes, thus the protection environment.In addition, this series products is saved the time and the manual work that bring because of regular maintenance and is expended in case filling need not to change.
(3) superior thixotropic property, cold filling, technology is simple
Half dry type filled composite of the present invention is to select thermoplasticity double-decker micro-sphere material and based on the fluid with thixotropy and long-term thermal stability and manufacturing meticulously helps abundant filling.Thixotropic property at normal temperatures and superior can solve in production, transportation and the flow process and may receive external force effects such as bending, vibration, impact, and buffering stress carries out more effectively simple the filling and maintenance.
It is soft that half dry type filled composite of the present invention keeps at low temperatures, can at room temperature use pad device directly to fill at a high speed.Simultaneously, can soft durometer be adjusted accordingly to satisfy technological requirement according to the demands of different of the condition of filling.
Cold filling paste is a kind ofly to be formed with the insulating properties colloid of network configuration through the physical crosslinking effect, and this colloid does not under static state flow, the height hydrophobic; Can be transformer, cable provides good water-tight performance with other electrical equipment, has excellent high temperature performance simultaneously; And in the structural deterioration of shear action lower network; Viscosity reduces significantly, becomes flowable fluid, and shearing force is recovered original network configuration again after removing immediately.
(4) anti-fungal property good (the biological environmental production performance is good)
By the GR-20-CORE of AT&T Labs, the R6-34 standard-required, filled composite reply bacterium does not have nutrition.
The demonstrations of reporting the result that have some to corrode power equipment about bacterium, often equipment by bacterium through its manhole or be exposed to wet environment and airborne part corrodes.Bacterium and fungi can grow therein with this understanding.For preventing this situation, we confirm that through the antimycotic test of Britain PRA waterproof paste of the present invention does not have nutrition to the growth of fungi and bacterium.
(5) superior electrical insulation capability
Since the delamination inhibitor of being selected for use, thermoplasticity double-decker microballoon, materials such as silicon dioxide all have excellent electric insulating, make half-dry environment-friendly filled composite of the present invention have superior electrical insulation capability, and the normal temperature specific insulation can reach 10
16Can be widely used in the preparation of half dry type transformer, cable and other insulation filling compound for electrician equipment.
In a word; Half-dry environment-friendly insulation filling compound for electrician equipment of the present invention has superior electrical property; The idea that meets the few oiling of safety and environmental protection; And, during filling with other electrical equipment, cable is with a wide range of applications because of the advantage of uniqueness (energy-conservation, technology is easy, easy to use, cleanliness without any pollution) at present transformer.And the thixotropic filled composite of half-dry environment-friendly insulation filling compound for electrician equipment of the present invention for filling at normal temperatures; Can replace traditional filler that transformer, cable and other electrical equipment are filled that is used for fully, and have well-content effect.
Description of drawings
Fig. 1 is the described waterproof paste anti-fungal property of an embodiment of the invention experimental result sketch map.
Among the figure: among Fig. 1-1, the left side: waterproof paste the right: comparison sample; Among Fig. 1-2, the left side: the waterproof paste that does not drip Aspergillus; The right: drip the waterproof paste that Aspergillus is arranged; Among Fig. 1-3, the left side: the comparison sample of not dripping Aspergillus; The right: drip the comparison sample that Aspergillus is arranged.
Fig. 2 is the described waterproof paste RoHS of an embodiment of the invention test experience flow chart.
Embodiment
The making of embodiment 1 insulation filling compound (waterproof paste)
Stir 76g refining white mineral oil, be warming up to 120 ℃ ± 10 ℃, keep 2～5h; Get 5g styrene-ethylene and propylene-based block copolymer and add in the white mineral oil, 110 ± 10 ℃ are stirred 1～2h, treat that copolymer and white mineral oil system are dissolved each other to add the antioxidant of 1.0g afterwards; 1g polyacrylate pour-point depressant; 10g aerosil powder and 0.3g antifungal agent stir the thermoplasticity double-decker micro-sphere material that adds 6g after 0.5 hour, stir after 0.5 hour again and vacuumize the acquisition product.
The making of embodiment 2 insulation filling compounds (waterproof paste)
Stir 56g refining white mineral oil, be warming up to 120 ℃ ± 10 ℃, keep 2～5h; Get 25g concentration and be 20% ethylene-propylene rubber solution and add in the white mineral oil, 110 ± 10 ℃ are stirred 1～2h, treat that ethylene-propylene rubber and white mineral oil system are dissolved each other to add the antioxidant of 1.0g afterwards; 1.0g poly alpha olefin class pour-point depressant; 10g aerosil powder and 0.2g antifungal agent stir the thermoplasticity double-decker micro-sphere material that adds 6g after 0.5 hour, stir after 0.5 hour again and vacuumize the acquisition product.
The making of embodiment 3 waterproof pastes
Stir 20g poly-a-olefin oil and 56 refining white mineral oils; Be warming up to 120 ℃ ± 10 ℃, keep 2～5h, get 5g styrene-ethylene and propylene-based block copolymer and add in the white mineral oil; 110 ± 10 ℃ are stirred 1～2h; Treat that copolymer and white mineral oil system add the antioxidant of 1.0g, 1g polyacrylate pour-point depressant, 10g aerosil powder and 0.1g antifungal agent after dissolving each other; Stir the thermoplasticity double-decker micro-sphere material that adds 6g after 0.5 hour, stir again after 0.5 hour and vacuumize the acquisition product.
The experiment of embodiment 4 half dry type compound anti-fungal properties
Method of testing summary: the BS5980 method test of Britain PRA through revising; Spread upon the aluminium flake that length and width are about 30mm * 30mm to the potato glucose pulp; Divide the waterproof paste sample of about 3.5g three layers to be coated on the aluminium flake, be coated with the potato glucose pulp of spreading half concentration on the aluminium flake of contrast in addition.
Contain one of them and drip last 8 on the plate of plate and comparative sample of half dry type composite sample and be suspended with the Niger Aspergillus IMI17454 (every contains 1 * 105 robe) of robe and drop it off under the 25 degree temperature and cultivate.Cultivate and use the microscopic examination conk after 14 days.Can find out that waterproof paste of the present invention has the antifungal growth function.
Fig. 1 is seen in detailed description.Among Fig. 1-1, the left side: half dry type compound the right: comparison sample; Among Fig. 1-2, the left side: the half dry type compound that does not drip Aspergillus; The right: drip the half dry type compound that Aspergillus is arranged; Among Fig. 1-3, the left side: the comparison sample of not dripping Aspergillus; The right: drip the comparison sample that Aspergillus is arranged.
Embodiment 5 waterproof paste RoHS test experience
Method of testing is according to the requirement of the RoHS of European Union instruction 2002/95/EC and subsequent correction instruction, reference test method IEC 62321:2008, ICP-OES; IEC62321:2008, GC-MS and IEC62321:2008, UV-Vis tests, and concrete testing process is as shown in Figure 2.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to the protection range of inventing type.
Claims (6)
1. a half dry type insulation filling compound for electrician equipment comprises following component: synthetic polypropylene hydrocarbon ils and/or refining white mineral oil, delamination inhibitor, thermoplasticity double-decker microballoon, antioxidant, pour-point depressant, silicon dioxide; Wherein the quality proportioning of each component is: synthetic polypropylene hydrocarbon ils and/or refining white mineral oil account for 40%～90% of said insulation filling compound gross mass; Delamination inhibitor 2%～30%; Thermoplasticity double-decker microballoon 0.5%～15%; Antioxidant 0.05～2%, pour-point depressant 0.05～2%, silicon dioxide 2～15%; Each component sum of said insulation filling compound is 100%;
Described thermoplasticity double-decker microballoon comprises that acrylonitrile copolymer housing and isopentane are 2-methybutane air bag; Thermoplasticity double-decker microsphere diameter is 10～60 μ m, and density is 0.001～0.04kg/m
3
Described delamination inhibitor is an ethylene-propylene rubber solution;
Said pour-point depressant composition is polyacrylate or poly alpha olefin class;
Described antioxidant is liquid phenols or four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
2. half dry type insulation filling compound for electrician equipment as claimed in claim 1 is characterized in that: also contain antifungal agent 0.01～0.5%, described antifungal agent is the antifungal agent of 2-octyl group-4-with the thiazoline structure.
3. half dry type insulation filling compound for electrician equipment as claimed in claim 2 is characterized in that: described silicon dioxide is the aerosol of hydrophobic type and/or hydrophilic aerosil or silicon dioxide.
4. like each described half dry type insulation filling compound for electrician equipment of claim 1～3, it is characterized in that: described synthetic polypropylene hydrocarbon ils is a poly-a-olefin oil, and said refining white mineral oil is a hydrocracking mineral oil.
5. the preparation technology of a half dry type insulation filling compound for electrician equipment: comprise the steps:
(1) gets the synthetic polypropylene hydrocarbon ils and/or the refining white mineral oil that account for gross mass proportioning 40%～90% and stir, be warming up to 120 ± 10 ℃, keep 1～4h, remove impurity;
(2) will account in the product of gross mass proportioning 2%～30% delamination inhibitor adding step (1), 110 ± 10 ℃ are stirred 1～2h, fully mix delamination inhibitor;
(3) add the silicon dioxide that accounts for gross mass proportioning 2～15%, account for the antioxidant of gross mass proportioning 0.05～2%, account for the pour-point depressant of gross mass proportioning 0.05～2%, account for the antifungal agent of gross mass proportioning 0.01～0.5%, and fully stir;
(4) adding accounts for gross mass proportioning 0.5%～15% thermoplasticity double-decker microballoon, stirs, and makes the half dry type insulation filling compound for electrician equipment, stores for future use; Described synthetic polypropylene hydrocarbon ils is a poly-a-olefin oil, and said refining white mineral oil is a hydrocracking mineral oil; Described thermoplasticity double-decker microballoon comprises acrylonitrile copolymer housing and hydrocarbon air bag, and described hydrocarbon air bag is that isopentane is the 2-methybutane; Described delamination inhibitor is styrene-ethylene and propylene-based block copolymer or ethylene-propylene rubber solution; Described pour-point depressant composition is polyacrylate or poly alpha olefin class; Described silicon dioxide is the aerosol of hydrophobic type and/or hydrophilic aerosil or silicon dioxide; Described antifungal agent is the antifungal agent of 2-octyl group-4-with the thiazoline structure; Described antioxidant is liquid phenols or four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
6. the application of half dry type insulation filling compound for electrician equipment as claimed in claim 4 in transformer, cable and other electrical equipment.
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| CN2010101506046A CN101847473B (en) | 2010-04-13 | 2010-04-13 | Semi-dry environmental-protection type insulation filling compound for electrician equipment and preparation process thereof |
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| CN101847473B true CN101847473B (en) | 2012-04-18 |
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Families Citing this family (4)
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| CN103342841B (en) * | 2013-07-24 | 2017-06-23 | 惠州市金益光电科技有限公司 | A kind of filled composite suitable for air-blowing Microtubule micro cable and preparation method thereof |
| CN107993764A (en) * | 2016-10-26 | 2018-05-04 | 上海鸿辉光通科技股份有限公司 | A kind of cable high insulating cold application cable filling paste of light density and preparation method thereof |
| CN106683884A (en) * | 2016-12-13 | 2017-05-17 | 宁国市大荣电器有限公司 | Multi-component rapeseed oil impregnant for capacitor |
| CN113088094B (en) * | 2021-02-23 | 2022-04-19 | 上杭鑫昌龙实业有限公司 | High-voltage electrical insulation filling paste and preparation method and application thereof |
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| CN88100976A (en) * | 1987-01-20 | 1988-10-26 | 诺莱斯公司 | Encapsulant and the application in cable industry thereof |
| CN1045803A (en) * | 1990-04-18 | 1990-10-03 | 湖北省化学研究所 | Normal temperature is filled thixotropic cable filler and preparation |
| US5218011A (en) * | 1986-03-26 | 1993-06-08 | Waterguard Industries, Inc. | Composition for protecting the contents of an enclosed space from damage by invasive water |
| CN101550375A (en) * | 2009-04-30 | 2009-10-07 | 华烁科技股份有限公司 | Super absorbent expansion thixotropy type block water paste with low density for optic cable and preparing method thereof |
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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5218011A (en) * | 1986-03-26 | 1993-06-08 | Waterguard Industries, Inc. | Composition for protecting the contents of an enclosed space from damage by invasive water |
| CN88100976A (en) * | 1987-01-20 | 1988-10-26 | 诺莱斯公司 | Encapsulant and the application in cable industry thereof |
| CN1045803A (en) * | 1990-04-18 | 1990-10-03 | 湖北省化学研究所 | Normal temperature is filled thixotropic cable filler and preparation |
| CN101550375A (en) * | 2009-04-30 | 2009-10-07 | 华烁科技股份有限公司 | Super absorbent expansion thixotropy type block water paste with low density for optic cable and preparing method thereof |
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