CN105368251A - Extra-high voltage insulation coating and preparation method thereof - Google Patents
Extra-high voltage insulation coating and preparation method thereof Download PDFInfo
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- CN105368251A CN105368251A CN201510790431.7A CN201510790431A CN105368251A CN 105368251 A CN105368251 A CN 105368251A CN 201510790431 A CN201510790431 A CN 201510790431A CN 105368251 A CN105368251 A CN 105368251A
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Abstract
The invention provides an extra-high voltage insulation coating and a preparation method thereof. The coating includes the following components by weight: 60-80 parts of epoxy resin, 5-8 parts of talcum powder, 6-10 parts of mica powder, 0.5-5.5 parts of natural camphor, 0.1-0.5 part of a coupling agent, 12-18 parts of nano filler, 30-45 parts of a solvent, 0.4-0.8 part of a curing agent, 2-4 parts of a leveling agent, 1-2.5 parts of an anti-settling agent and 0.2-0.5 part of a defoaming agent. The extra-high voltage insulation coating of the invention has the advantages of high mechanical properties, good electrical insulation, simple preparation process, and easily available raw materials.
Description
Technical field
The present invention relates to a kind of coating, particularly a kind of extra-high voltage insulation compound and preparation method thereof.
Background technology
In recent years, rapidly, network system running voltage grade improves constantly the development of China electric utility, and network size progressively expands, and each large regions electrical network is unified into an entirety substantially, and the general layout of " transferring electricity from the west to the east, north and south supply mutually, on national network " tentatively realizes.At present, the power network development strategy that State Grid Corporation of China advances " spy four is large ", namely with large-scale Energy Base for rely on, build by the extra-high voltage grid that 1000kV exchanges and ± 800kV direct current is formed, form electric power " motorway ", promote the intensive development of large coal electricity, large water power, large nuclear power and large-scale renewable energy source base, realize most optimum distribution of resources in China.
Superelevation or UHV transmission network are skeleton and the core of the strong intelligent grid of unification that national grid is being made with all strength.Higher voltage range and the safe reliability of direct-current transmission to the epoxy resin insulation material being widely used in electric installation propose significant challenge.At present, the epoxy resin insulation material volume specific resistance of hanging net operation is on the low side, and especially under high direct voltage, electric charge gathers for a long time and easily causes dielectric surface flashover, is one of hidden danger of extra-high voltage grid safety.
If the protection of exposed superelevation or extra-high voltage transmission line naked coating, will be very easy to damage, thus cause short circuit, cause power breakdown etc.Coating, refers to coat the forming film under certain conditions of body surface and plays protection, the class I liquid I of decoration or other specific functions (insulation, antirust, mildew-resistant, heat-resisting etc.) or solid material.Existing insulation compound major part is epoxy systems, is widely used in superelevation or UHV transmission network, and this is because epoxy systems is anticorrosion and insulating property are given prominence to, but, ehter bond in epoxy resin, by uviolizing easy fracture, causes coating aging to play powder, its performance cannot be guaranteed.
China Patent No.: CN103571329A discloses a kind of Insulation anticorrosive coating, this ceramic coating is made up of silicone resin, aluminium hydroxide, fire retardant, ceramic particles, calcium sulfate, zinc oxide, silicon nitride, deionized water, ceramic particle needs nanometer materials simultaneously, preparation cost is better, simultaneously because its component contains more metal oxide, permanent use has conduction risk, and the crisp easy be full of cracks of this invention coating matter, and life-time service exists hidden danger.Notification number CN103045058B discloses a kind of insulation compound and electrical sheet material and preparation method thereof, this coating has that water-soluble film-forming resin, coupling agent etc. are obtained has better thermotolerance, insulativity, tack, solidity to corrosion and punching, though have employed coupling agent, but process in early stage is not carried out to coupling agent, make insulation compound overall performance good not.
Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, provides that a kind of mechanical property is high, electrical insulating property is good and preparation technology is simple, extra-high voltage insulation compound that raw material is easy to get.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin 60 ~ 80 parts, talcum powder 5 ~ 8 parts, mica powder 6 ~ 10 parts, natural camphor 0.5 ~ 5.5 part, coupling agent 0.1 ~ 0.5 part, Nano filling 12 ~ 18 parts, solvent 30 ~ 45 parts, 0.4 ~ 0.8 part, solidifying agent, flow agent 2 ~ 4 parts, anti-settling agent 1 ~ 2.5 part and defoamer 0.2 ~ 0.5 part.
Preferably, the weight ratio of described coupling agent and Nano filling is 1 ~ 3:100.
Preferably, described coupling agent is aluminate coupling agent.
Preferably, described Nano filling is nano-silicon nitride powder and nano-sized magnesium hydroxide powder.
Preferably, in described Nano filling, the weight ratio of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is 1:1 ~ 2.
Preferably, described solvent is that acetone and dimethylbenzene mix according to the ratio composition of volume ratio 1 ~ 1.5:1.
Preferably, described solidifying agent is dead front type water-based cycloaliphatic polyisocyanate solidifying agent.
Preferably, described flow agent is acrylate flow agent.
A preparation method for extra-high voltage insulation compound, comprises the following steps:
1) coupling agent is dissolved in partial solvent, ultrasonic 10 ~ 20 minutes, then joins together with Nano filling in high speed dispersor, stir under 380 ~ 460 revs/min and be warming up to 80 ~ 100 DEG C, stir 30 ~ 40 minutes, be cooled to room temperature;
2) epoxy resin will be dropped into heating kettle, be warming up to 120 ~ 140 DEG C of fusings, under 1200 ~ 1400 revs/min stir 15 ~ 20 minutes, be cooled to 70 DEG C stand-by;
3) by step 1) the Nano filling crossed of handy coupling agent treatment and talcum powder, mica powder, step 2) gained part epoxy joins in high speed dispersor, adjustment stirring velocity to 600 ~ 800 rev/min, after high speed dispersion is uniformly mixed 1 ~ 2 hour, grind 40 ~ 55 minutes, sand milling fineness 30 ~ 40 μm, and then add flow agent, defoamer, anti-settling agent and remaining epoxy resin, stir, filtration discharging is for subsequent use;
4) component after grinding in step 3) being filtered mixes latter ultrasonic 2 ~ 3 hours with solidifying agent, residual solvent, and then add in high shearing mixing emulsor, high speed dispersion 40 ~ 50 minutes, filters.
Preferably, the addition of described partial solvent is 10% ~ 20% of Nano filling weight, and the consumption of described part epoxy is 30 ~ 40 parts in weight part 100 parts of poly epoxy resins, and the consumption of described partial solvent is 20 ~ 30 parts in weight part 100 parts of solvents.
The invention has the beneficial effects as follows:
1. talcous interpolation can suppress the volumetric shrinkage of paint film, improves the viscosity under hot environment and water tolerance, increases snappiness, and mica powder can make film inside form a kind of layer reticulated structure of densification, thus increases coating insulating property and mechanical property.
2. aluminate coupling agent can be coated on Nano filling surface with the form of unit molecule state, improve most of Nano filling dispersiveness in the material, to shorten milling time, what particle in identical milling time was ground is thinner, also there is certain thixotropic property simultaneously, thus improve the repellency of coating, wear resistance and washing fastness to a certain extent.
3. inorganic nano alpha-silicon nitride powders and nano-sized magnesium hydroxide powder particle can pass through Van der Waals force absorbing ring epoxy resins molecular chain according to the interpolation of certain blending ratio, thus it is effectively epoxy resin toughened, increase dimensional stability, its withstand voltage properties of final enhancing, increase substantially coatings volume resistivity, reduce surface charge accumulation, improve coating insulativity.
4. acetone and dimethylbenzene are according to the solvent of certain volume than composition, the homogeneity that solution is good can be ensured, with dead front type water-based cycloaliphatic polyisocyanate solidifying agent with the use of time can improve sticking power and the physical strength of coating, strengthen the solvent resistant of paint film, erosion resistance and temperature tolerance.
5. natural camphor has optically active chirality natural product, its asymmetrical carbonyl structure, natural camphor is had very large sterically hindered, simultaneously due to the existence of unsymmetrical factors, the arrangement after disperseing with solidifying agent after ultrasonic abundant dissolving in the mixed solvent that acetone and dimethylbenzene form, molecule can being compacted more, and then improve the insulating property of coating.
In a word, a kind of extra-high voltage insulation compound steady quality provided by the invention, has good insulating property and good mechanical property, and its preparation method is simple, and mild condition, production cost is low, has good market outlook.
Embodiment
Below in conjunction with the specific embodiment of the invention, be clearly and completely described technical scheme of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment is raw materials used all can be bought from market, and wherein, the quick levelling of acrylate L-189 flow agent is effective, does not affect ply adhesion; NXZ defoamer consistency is good, and have no adverse effects to coating system, security is high; Polyolefin-wax anti-settling agent has anti-settling and effect that is sag prevention, can also improve levelling property; Dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent be acetone and dimethylbenzene according to certain volume than composition solvent with the use of time enough improve sticking power and the physical strength of coating, strengthen the solvent resistant of paint film, erosion resistance and temperature tolerance.
Embodiment 1
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 60 parts, talcum powder: 5 parts, mica powder: 6 parts, natural camphor: 0.5 part, coupling agent: 0.12 part, Nano filling: 12 parts, solvent: 30 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.4 part, acrylate L-189 flow agent: 2 parts, polyolefin-wax anti-settling agent: 1 part and NXZ defoamer: 0.2 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.
Its preparation method is:
1) aluminate coupling agent of 0.12 weight part is dissolved in the solvent that 3 weight parts mix according to volume ratio 1:1 with acetone and dimethylbenzene, ultrasonic 10 minutes, join together with the Nano filling of then with 12 weight parts in high speed dispersor, stir under 380 revs/min and be warming up to 80 DEG C, stir 30 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 60 parts of weight parts will be dropped into heating kettle, be warming up to 120 DEG C of fusings, stir 15 minutes under 1200 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 6 weight parts mix according to volume ratio 1:1 with acetone and dimethylbenzene and mix for 10 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 5 weight parts, 6 weight parts, step 1) and the epoxy resin of 18 weight parts are joined in high speed dispersor, adjustment stirring velocity to 600 rev/min, after high speed dispersion is uniformly mixed 1 hour, grind 40 minutes, sand milling fineness 30 μm, and then add the acrylate L-189 flow agent of 2 weight parts, the NXZ defoamer of 0.2 weight part, the polyolefin-wax anti-settling agent of 1 weight part and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 0.5 weight part after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.4 weight part, residual solvent mix ultrasonic 2 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 40 minutes, filter, obtain required coating.
Embodiment 2
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 80 parts, talcum powder: 8 parts, mica powder: 10 parts, natural camphor: 5.5 parts, coupling agent: 0.54 part, Nano filling: 18 parts, solvent: 45 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.8 part, acrylate L-189 flow agent: 4 parts, polyolefin-wax anti-settling agent: 2.5 parts and NXZ defoamer: 0.5 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:2.
Its preparation method is:
1) aluminate coupling agent of 0.54 weight part is dissolved in the solvent that 9 weight parts mix according to volume ratio 1.5:1 with acetone and dimethylbenzene, ultrasonic 20 minutes, join together with the Nano filling of then with 18 weight parts in high speed dispersor, stir under 460 revs/min and be warming up to 100 DEG C, stir 40 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 80 parts of weight parts will be dropped into heating kettle, be warming up to 140 DEG C of fusings, stir 20 minutes under 1400 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 13.5 weight parts mix according to volume ratio 1.5:1 with acetone and dimethylbenzene and mix for 20 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 8 weight parts, 10 weight parts, step 1) and the epoxy resin of 32 weight parts are joined in high speed dispersor, adjustment stirring velocity to 800 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 50 minutes, sand milling fineness 40 μm, and then add the acrylate L-189 flow agent of 4 weight parts, the NXZ defoamer of 0.5 weight part, the polyolefin-wax anti-settling agent of 2.5 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 5.5 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.8 weight part, residual solvent mix ultrasonic 3 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 50 minutes, filter, obtain required coating.
Embodiment 3
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 70 parts, talcum powder: 6 parts, mica powder: 8 parts, natural camphor: 4.5 parts, coupling agent: 0.32 part, Nano filling: 16 parts, solvent: 40 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.6 part, acrylate L-189 flow agent: 3 parts, polyolefin-wax anti-settling agent: 2 parts and NXZ defoamer: 0.4 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.2.
Its preparation method is:
1) aluminate coupling agent of 0.32 weight part is dissolved in the solvent that 8 weight parts mix according to volume ratio 1.2:1 with acetone and dimethylbenzene, ultrasonic 15 minutes, join together with the Nano filling of then with 16 weight parts in high speed dispersor, stir under 420 revs/min and be warming up to 90 DEG C, stir 40 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 70 parts of weight parts will be dropped into heating kettle, be warming up to 130 DEG C of fusings, stir 18 minutes under 1300 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 12 weight parts mix according to volume ratio 1.2:1 with acetone and dimethylbenzene and mix for 15 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 6 weight parts, 8 weight parts, step 1) and the epoxy resin of 25 weight parts are joined in high speed dispersor, adjustment stirring velocity to 700 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 55 minutes, sand milling fineness 35 μm, and then add the acrylate L-189 flow agent of 3 weight parts, the NXZ defoamer of 0.4 weight part, the polyolefin-wax anti-settling agent of 2 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 4.5 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.6 weight part, residual solvent mix ultrasonic 2.5 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 45 minutes, filter, obtain required coating.
Embodiment 4
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 75 parts, talcum powder: 7 parts, mica powder: 7 parts, natural camphor:: 4 parts, coupling agent: 0.4 part, Nano filling: 15 parts, solvent: 38 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.5 part, acrylate L-189 flow agent: 4 parts, polyolefin-wax anti-settling agent: 1.8 parts and NXZ defoamer: 0.3 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.5.
Its preparation method is:
1) aluminate coupling agent of 0.4 weight part is dissolved in the solvent that 7 weight parts mix according to volume ratio 1.5:1 with acetone and dimethylbenzene, ultrasonic 18 minutes, join together with the Nano filling of then with 15 weight parts in high speed dispersor, stir under 420 revs/min and be warming up to 85 DEG C, stir 36 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 75 parts of weight parts will be dropped into heating kettle, be warming up to 125 DEG C of fusings, stir 18 minutes under 1250 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 11 weight parts mix according to volume ratio 1.5:1 with acetone and dimethylbenzene and mix for 16 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 7 weight parts, 7 weight parts, step 1) and the epoxy resin of 28 weight parts are joined in high speed dispersor, adjustment stirring velocity to 650 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 50 minutes, sand milling fineness 35 μm, and then add the acrylate L-189 flow agent of 4 weight parts, the NXZ defoamer of 0.3 weight part, the polyolefin-wax anti-settling agent of 1.8 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 4 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.5 weight part, residual solvent mix ultrasonic 3 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 46 minutes, filter, obtain required coating.
Embodiment 5
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 68 parts, talcum powder: 6 parts, mica powder: 9 parts, natural camphor: 2.6 parts, coupling agent: 0.5 part, Nano filling: 14 parts, solvent: 38 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.7 part, acrylate L-189 flow agent: 4 parts, polyolefin-wax anti-settling agent: 2 parts and NXZ defoamer: 0.5 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:2.
Its preparation method is:
1) aluminate coupling agent of 0.5 weight part is dissolved in the solvent that 6 weight parts mix according to volume ratio 1:1 with acetone and dimethylbenzene, ultrasonic 20 minutes, join together with the Nano filling of then with 14 weight parts in high speed dispersor, stir under 440 revs/min and be warming up to 95 DEG C, stir 35 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 68 parts of weight parts will be dropped into heating kettle, be warming up to 125 DEG C of fusings, stir 15 minutes under 1350 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 10 weight parts mix according to volume ratio 1:1 with acetone and dimethylbenzene and mix for 15 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 6 weight parts, 9 weight parts, step 1) and the epoxy resin of 28 weight parts are joined in high speed dispersor, adjustment stirring velocity to 750 rev/min, after high speed dispersion is uniformly mixed 1.5 hours, grind 48 minutes, sand milling fineness 40 μm, and then add the acrylate L-189 flow agent of 4 weight parts, the NXZ defoamer of 0.5 weight part, the polyolefin-wax anti-settling agent of 2 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 2.6 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.7 weight part, residual solvent mix ultrasonic 2.2 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 45 minutes, filter, obtain required coating.
Embodiment 6
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 80 parts, talcum powder: 8 parts, mica powder: 8 parts, natural camphor: 2.5 parts, coupling agent: 0.54 part, Nano filling: 18 parts, solvent: 45 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.8 part, acrylate L-189 flow agent: 4 parts, polyolefin-wax anti-settling agent: 2.3 parts and NXZ defoamer: 0.5 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.8.
Its preparation method is:
1) aluminate coupling agent of 0.54 weight part is dissolved in the solvent that 9 weight parts mix according to volume ratio 1.5:1 with acetone and dimethylbenzene, ultrasonic 20 minutes, join together with the Nano filling of then with 18 weight parts in high speed dispersor, stir under 460 revs/min and be warming up to 100 DEG C, stir 40 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 80 parts of weight parts will be dropped into heating kettle, be warming up to 140 DEG C of fusings, stir 20 minutes under 1400 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 13.5 weight parts mix according to volume ratio 1.5:1 with acetone and dimethylbenzene and mix for 20 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 8 weight parts, 8 weight parts, step 1) and the epoxy resin of 32 weight parts are joined in high speed dispersor, adjustment stirring velocity to 800 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 50 minutes, sand milling fineness 40 μm, and then add the acrylate L-189 flow agent of 4 weight parts, the NXZ defoamer of 0.5 weight part, the polyolefin-wax anti-settling agent of 2.3 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 2.5 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.8 weight part, residual solvent mix ultrasonic 3 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 48 minutes, filter, obtain required coating.
Embodiment 7
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 70 parts, talcum powder: 6 parts, mica powder: 8 parts, natural camphor: 4.2 parts, coupling agent: 0.32 part, Nano filling: 16 parts, solvent: 40 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.6 part, acrylate L-189 flow agent: 2.8 parts, polyolefin-wax anti-settling agent: 1.8 parts and NXZ defoamer: 0.4 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.2.
Its preparation method is:
1) aluminate coupling agent of 0.32 weight part is dissolved in the solvent that 8 weight parts mix according to volume ratio 1.2:1 with acetone and dimethylbenzene, ultrasonic 15 minutes, join together with the Nano filling of then with 16 weight parts in high speed dispersor, stir under 440 revs/min and be warming up to 90 DEG C, stir 40 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 70 parts of weight parts will be dropped into heating kettle, be warming up to 130 DEG C of fusings, stir 18 minutes under 1300 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 12 weight parts mix according to volume ratio 1.2:1 with acetone and dimethylbenzene and mix for 15 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 6 weight parts, 8 weight parts, step 1) and the epoxy resin of 25 weight parts are joined in high speed dispersor, adjustment stirring velocity to 700 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 55 minutes, sand milling fineness 35 μm, and then add the acrylate L-189 flow agent of 2.8 weight parts, the NXZ defoamer of 0.4 weight part, the polyolefin-wax anti-settling agent of 1.8 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 4.2 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.6 weight part, residual solvent mix ultrasonic 2.2 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 42 minutes, filter, obtain required coating.
Embodiment 8
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 60 parts, talcum powder: 5 parts, mica powder: 10 parts, natural camphor: 1.8 parts, coupling agent: 0.12 part, Nano filling: 12 parts, solvent: 30 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.4 part, acrylate L-189 flow agent: 2 parts, polyolefin-wax anti-settling agent: 1 part and NXZ defoamer: 0.2 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.5.
Its preparation method is:
1) aluminate coupling agent of 0.12 weight part is dissolved in the solvent that 3 weight parts mix according to volume ratio 1:1 with acetone and dimethylbenzene, ultrasonic 10 minutes, join together with the Nano filling of then with 12 weight parts in high speed dispersor, stir under 380 revs/min and be warming up to 80 DEG C, stir 30 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 60 parts of weight parts will be dropped into heating kettle, be warming up to 120 DEG C of fusings, stir 15 minutes under 1200 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 6 weight parts mix according to volume ratio 1:1 with acetone and dimethylbenzene and mix for 10 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 5 weight parts, 10 weight parts, step 1) and the epoxy resin of 18 weight parts are joined in high speed dispersor, adjustment stirring velocity to 650 rev/min, after high speed dispersion is uniformly mixed 1 hour, grind 40 minutes, sand milling fineness 30 μm, and then add the acrylate L-189 flow agent of 2 weight parts, the NXZ defoamer of 0.2 weight part, the polyolefin-wax anti-settling agent of 1 weight part and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 1.8 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.4 weight part, residual solvent mix ultrasonic 3 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 50 minutes, filter, obtain required coating.
In order to outstanding innovative point of the present invention, enable those skilled in the art to fully understand the present invention, now enumerate the present invention experimental stage or the comparative example adopting prior art, and effect explanation is carried out to itself and embodiments of the invention.
Comparative example 1
Nanometer inorganic filler is directly used in the preparation of coating without the process of coupling agent:
Epoxy resin: 68 parts, talcum powder: 6 parts, mica powder: 9 parts, natural camphor: 4 parts, Nano filling: 14 parts, solvent: 38 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.7 part, acrylate L-189 flow agent: 4 parts, polyolefin-wax anti-settling agent: 2 parts and NXZ defoamer: 0.5 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:2.
1) epoxy resin of 68 parts of weight parts will be dropped into heating kettle, be warming up to 125 DEG C of fusings, stir 15 minutes under 1350 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 10 weight parts mix according to volume ratio 1:1 with acetone and dimethylbenzene and mix for 15 minutes, 35 DEG C of filtrations are stand-by;
2) epoxy resin of the mica powder of the talcum powder of 6 weight parts, 9 weight parts, the Nano filling of 14 weight parts and 28 weight parts is joined in high speed dispersor, adjustment stirring velocity to 750 rev/min, after high speed dispersion is uniformly mixed 1.5 hours, grind 45 minutes, sand milling fineness 40 μm, and then add the acrylate L-189 flow agent of 4 weight parts, the NXZ defoamer of 0.5 weight part, the polyolefin-wax anti-settling agent of 2 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
3) natural camphor of component and 4 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.7 weight part, residual solvent mix ultrasonic 2 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 40 minutes, filter, obtain required coating.
Comparative example 2
Adopt the preparation being directly used in coating by the nano-silicon nitride powder of coupling agent surface treatment:
Epoxy resin: 70 parts, talcum powder: 6 parts, mica powder: 8 parts, natural camphor: 5 parts, coupling agent: 0.32 part, nano-silicon nitride filler: 16 parts, solvent: 40 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.6 part, acrylate L-189 flow agent: 3 parts, polyolefin-wax anti-settling agent: 2 parts and NXZ defoamer: 0.4 part.
1) aluminate coupling agent of 0.32 weight part is dissolved in the solvent that 8 weight parts mix according to volume ratio 1.2:1 with acetone and dimethylbenzene, ultrasonic 15 minutes, join in high speed dispersor together with the nano-silicon nitride filler of then with 16 weight parts, stir under 420 revs/min and be warming up to 90 DEG C, stir 40 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 70 parts of weight parts will be dropped into heating kettle, be warming up to 130 DEG C of fusings, stir 18 minutes under 1300 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 12 weight parts mix according to volume ratio 1.2:1 with acetone and dimethylbenzene and mix for 15 minutes, 35 DEG C of filtrations are stand-by;
3) the nano-silicon nitride filler of gained after coupling agent treatment in the mica powder of the talcum powder of 6 weight parts, 8 weight parts, step 1) and the epoxy resin of 25 weight parts are joined in high speed dispersor, adjustment stirring velocity to 700 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 50 minutes, sand milling fineness 35 μm, and then add the acrylate L-189 flow agent of 3 weight parts, the NXZ defoamer of 0.4 weight part, the polyolefin-wax anti-settling agent of 2 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 5 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.6 weight part, residual solvent mix ultrasonic 3 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 50 minutes, filter, obtain required coating.
Comparative example 3
Solvent only adopts single xylene solvent:
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 70 parts, talcum powder: 6 parts, mica powder: 8 parts, natural camphor: 3 parts, coupling agent: 0.32 part, Nano filling: 16 parts, xylene solvent: 40 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.6 part, acrylate L-189 flow agent: 3 parts, polyolefin-wax anti-settling agent: 2 parts and NXZ defoamer: 0.4 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.2.
1) aluminate coupling agent of 0.32 weight part is dissolved in 8 parts by weight of xylene solvents, ultrasonic 15 minutes, join together with the Nano filling of then with 16 weight parts in high speed dispersor, stir under 420 revs/min and be warming up to 90 DEG C, stir 40 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 70 parts of weight parts will be dropped into heating kettle, and be warming up to 130 DEG C of fusings, and stir 18 minutes, be cooled to 70 DEG C under 1300 revs/min, slowly add in 12 parts by weight of xylene solvents and continue stirring and mix for 15 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 6 weight parts, 8 weight parts, step 1) and the epoxy resin of 25 weight parts are joined in high speed dispersor, adjustment stirring velocity to 700 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 50 minutes, sand milling fineness 35 μm, and then add the acrylate L-189 flow agent of 3 weight parts, the NXZ defoamer of 0.4 weight part, the polyolefin-wax anti-settling agent of 2 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 3 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.6 weight part, residual solvent mix ultrasonic 2.5 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 45 minutes, filter, obtain required coating.
Comparative example 4
Solvent only adopts single acetone solvent:
A kind of extra-high voltage insulation compound, according to parts by weight, comprising: epoxy resin: 70 parts, talcum powder: 6 parts, mica powder: 8 parts, natural camphor: 3.5 parts, coupling agent: 0.32 part, Nano filling: 16 parts, acetone solvent: 40 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.6 part, acrylate L-189 flow agent: 3 parts, polyolefin-wax anti-settling agent: 2 parts and NXZ defoamer: 0.4 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.2.
1) aluminate coupling agent of 0.32 weight part is dissolved in 8 pbw acetone solvents, ultrasonic 15 minutes, join together with the Nano filling of then with 16 weight parts in high speed dispersor, stir under 420 revs/min and be warming up to 90 DEG C, stir 40 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 70 parts of weight parts will be dropped into heating kettle, and be warming up to 130 DEG C of fusings, and stir 18 minutes, be cooled to 70 DEG C under 1300 revs/min, slowly add in 12 pbw acetone solvents and continue stirring and mix for 15 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 6 weight parts, 8 weight parts, step 1) and the epoxy resin of 25 weight parts are joined in high speed dispersor, adjustment stirring velocity to 700 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 55 minutes, sand milling fineness 35 μm, and then add the acrylate L-189 flow agent of 3 weight parts, the NXZ defoamer of 0.4 weight part, the polyolefin-wax anti-settling agent of 2 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) natural camphor of component and 3.5 weight parts after grinding in step 3) being filtered, the dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent of 0.6 weight part, residual solvent mix ultrasonic 3 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 48 minutes, filter, obtain required coating.
Comparative example 5
Do not adopt natural camphor for the preparation of coating:
Epoxy resin: 75 parts, talcum powder: 7 parts, mica powder: 7 parts, coupling agent: 0.4 part, Nano filling: 15 parts, solvent: 38 parts, dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent: 0.5 part, acrylate L-189 flow agent: 4 parts, polyolefin-wax anti-settling agent: 1.8 parts and NXZ defoamer: 0.3 part.
In Nano filling, the mixed weight of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is than being 1:1.5.
1) aluminate coupling agent of 0.4 weight part is dissolved in the solvent that 7 weight parts mix according to volume ratio 1.5:1 with acetone and dimethylbenzene, ultrasonic 18 minutes, join together with the Nano filling of then with 15 weight parts in high speed dispersor, stir under 420 revs/min and be warming up to 85 DEG C, stir 36 minutes, be cooled to room temperature for subsequent use;
2) epoxy resin of 75 parts of weight parts will be dropped into heating kettle, be warming up to 125 DEG C of fusings, stir 18 minutes under 1250 revs/min, be cooled to 70 DEG C, slowly add and continue stirring in the solvent that 11 weight parts mix according to volume ratio 1.5:1 with acetone and dimethylbenzene and mix for 16 minutes, 35 DEG C of filtrations are stand-by;
3) Nano filling of gained after coupling agent treatment in the mica powder of the talcum powder of 7 weight parts, 7 weight parts, step 1) and the epoxy resin of 28 weight parts are joined in high speed dispersor, adjustment stirring velocity to 650 rev/min, after high speed dispersion is uniformly mixed 2 hours, grind 50 minutes, sand milling fineness 35 μm, and then add the acrylate L-189 flow agent of 4 weight parts, the NXZ defoamer of 0.3 weight part, the polyolefin-wax anti-settling agent of 1.8 weight parts and remaining epoxy resin, stir, through ground leach material for subsequent use;
4) dead front type water-based cycloaliphatic polyisocyanate WB-903 solidifying agent, the residual solvent of component and 0.5 weight part after grinding in step 3) being filtered mix ultrasonic 3 hours afterwards, then add in high shearing mixing emulsor, high speed dispersion 50 minutes, filters, obtains required coating.
Carry out performance test to extra-high voltage insulation compound prepared by embodiment in the present invention 1 ~ 8 and comparative example 1 ~ 5, test result sees the following form one.
The coating performance parameter that table one is prepared for different embodiment and different comparative example:
From above test data: 1) as can be seen from comparative example 1 ~ 5 and embodiment 1 ~ 8, the interpolation of the solidifying agent in the preparation of change coating, solvent burden ratio, nano inorganic material and its proportional distribution bring certain impact all can to the performance of coating.2) as can be seen from comparative example 4 and comparative example 3, the coating property that the coating property using acetone or any one solvent of dimethylbenzene to prepare all is prepared compared with solvent is in all its bearings poor, illustrate that solvent can make coating raw material better dissolve in preparation process, thus better optimize the performance of coating.3) as can be seen from embodiment 1 ~ 8 and comparative example 1, aluminate coupling agent can be coated on nanometer inorganic filler surface, improves most of nanometer inorganic filler dispersiveness in the material, improves the performance of coating to a certain extent.4) as can be seen from embodiment 1 ~ 8 and comparative example 2, nano-silicon nitride powder and nano-sized magnesium hydroxide powder can realize the long-term high thermal resistance of silicone resin according to the interpolation of certain blending ratio, thus toughening coating effectively, strengthen its shock-resistance and hardness.5) as can be seen from embodiment 1 ~ 8 and comparative example 5, do not add the coating that natural camphor is prepared, comparatively add the coating property prepared of natural camphor weaker.
From above test data, extra-high voltage insulation compound of the present invention has good insulating property and good mechanical property, can be widely used in superelevation or UHV transmission network.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an extra-high voltage insulation compound, it is characterized in that: according to parts by weight, comprising: epoxy resin 60 ~ 80 parts, talcum powder 5 ~ 8 parts, mica powder 6 ~ 10 parts, natural camphor 0.5 ~ 5.5 part, coupling agent 0.1 ~ 0.5 part, Nano filling 12 ~ 18 parts, solvent 30 ~ 45 parts, 0.4 ~ 0.8 part, solidifying agent, flow agent 2 ~ 4 parts, anti-settling agent 1 ~ 2.5 part and defoamer 0.2 ~ 0.5 part.
2. a kind of extra-high voltage insulation compound as claimed in claim 1, is characterized in that: the weight ratio of described coupling agent and Nano filling is 1 ~ 3:100.
3. a kind of extra-high voltage insulation compound as claimed in claim 1, is characterized in that: described coupling agent is aluminate coupling agent.
4. a kind of extra-high voltage insulation compound as claimed in claim 1, is characterized in that: described Nano filling is nano-silicon nitride powder and nano-sized magnesium hydroxide powder.
5. a kind of extra-high voltage insulation compound as claimed in claim 4, is characterized in that: in described Nano filling, the weight ratio of nano-silicon nitride powder and nano-sized magnesium hydroxide powder is 1:1 ~ 2.
6. a kind of extra-high voltage insulation compound as claimed in claim 1, is characterized in that: described solvent is that acetone and dimethylbenzene mix according to the ratio composition of volume ratio 1 ~ 1.5:1.
7. a kind of extra-high voltage insulation compound as claimed in claim 1, is characterized in that: described solidifying agent is dead front type water-based cycloaliphatic polyisocyanate solidifying agent.
8. a kind of extra-high voltage insulation compound as claimed in claim 1, is characterized in that: described flow agent is acrylate flow agent.
9. a preparation method for extra-high voltage insulation compound as claimed in claim 1, is characterized in that: comprise the following steps:
1) coupling agent is dissolved in partial solvent, ultrasonic 10 ~ 20 minutes, then joins together with Nano filling in high speed dispersor, stir under 380 ~ 460 revs/min and be warming up to 80 ~ 100 DEG C, stir 30 ~ 40 minutes, be cooled to room temperature;
2) epoxy resin will be dropped into heating kettle, be warming up to 120 ~ 140 DEG C of fusings, under 1200 ~ 1400 revs/min stir 15 ~ 20 minutes, be cooled to 70 DEG C stand-by;
3) by step 1) the Nano filling crossed of handy coupling agent treatment and talcum powder, mica powder, step 2) gained part epoxy joins in high speed dispersor, adjustment stirring velocity to 600 ~ 800 rev/min, after high speed dispersion is uniformly mixed 1 ~ 2 hour, grind 40 ~ 55 minutes, sand milling fineness 30 ~ 40 μm, and then add flow agent, defoamer, anti-settling agent and remaining epoxy resin, stir, filtration discharging is for subsequent use;
4) component after grinding in step 3) being filtered mixes latter ultrasonic 2 ~ 3 hours with natural camphor, solidifying agent, residual solvent, and then add in high shearing mixing emulsor, high speed dispersion 40 ~ 50 minutes, filters.
10. the preparation method of a kind of extra-high voltage insulation compound as claimed in claim 9, it is characterized in that: the addition of described partial solvent is 10% ~ 20% of Nano filling weight, the consumption of described part epoxy is 30 ~ 40 parts in weight part 100 parts of poly epoxy resins, and the consumption of described partial solvent is 20 ~ 30 parts in weight part 100 parts of solvents.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456480A (en) * | 2018-04-19 | 2018-08-28 | 合肥展游软件开发有限公司 | A kind of use for electronic products ultraviolet light solidification high temperature insulation coating and preparation method thereof |
| CN117467339A (en) * | 2023-12-27 | 2024-01-30 | 北京超智控信科技有限公司 | Self-closing wire self-curing insulating coating material for electrified railway |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070117911A1 (en) * | 2003-12-29 | 2007-05-24 | Irwin Patricia C | Composite coatings for groundwall insulation, method of manufacture thereof and articles derived therefrom |
| CN102277062A (en) * | 2011-06-30 | 2011-12-14 | 浙江天女集团制漆有限公司 | Production method of environment friendly recycled high-insulation coating for electronic components |
| CN102295878A (en) * | 2011-07-06 | 2011-12-28 | 上海大学 | Fill-type thermal conductive insulation impregnating varnish |
| CN105038511A (en) * | 2015-08-21 | 2015-11-11 | 国网山东省电力公司临沂供电公司 | High-performance heat-conducting insulating varnish and preparation method thereof |
-
2015
- 2015-11-17 CN CN201510790431.7A patent/CN105368251B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070117911A1 (en) * | 2003-12-29 | 2007-05-24 | Irwin Patricia C | Composite coatings for groundwall insulation, method of manufacture thereof and articles derived therefrom |
| CN102277062A (en) * | 2011-06-30 | 2011-12-14 | 浙江天女集团制漆有限公司 | Production method of environment friendly recycled high-insulation coating for electronic components |
| CN102295878A (en) * | 2011-07-06 | 2011-12-28 | 上海大学 | Fill-type thermal conductive insulation impregnating varnish |
| CN105038511A (en) * | 2015-08-21 | 2015-11-11 | 国网山东省电力公司临沂供电公司 | High-performance heat-conducting insulating varnish and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 云南日报社新闻研究所编: "《云南 可爱的地方》", 31 August 1984, 云南人民出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456480A (en) * | 2018-04-19 | 2018-08-28 | 合肥展游软件开发有限公司 | A kind of use for electronic products ultraviolet light solidification high temperature insulation coating and preparation method thereof |
| CN117467339A (en) * | 2023-12-27 | 2024-01-30 | 北京超智控信科技有限公司 | Self-closing wire self-curing insulating coating material for electrified railway |
| CN117467339B (en) * | 2023-12-27 | 2024-03-08 | 北京超智控信科技有限公司 | Self-closing wire self-curing insulating coating material for electrified railway |
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