CN108384249A - Insulating material for secondary overvoltage protector of current transformer and preparation method thereof - Google Patents
Insulating material for secondary overvoltage protector of current transformer and preparation method thereof Download PDFInfo
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- CN108384249A CN108384249A CN201810199987.2A CN201810199987A CN108384249A CN 108384249 A CN108384249 A CN 108384249A CN 201810199987 A CN201810199987 A CN 201810199987A CN 108384249 A CN108384249 A CN 108384249A
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- overvoltage protection
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- 239000011810 insulating material Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 230000001012 protector Effects 0.000 title claims abstract description 11
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 22
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 22
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 19
- 239000007822 coupling agent Substances 0.000 claims abstract description 18
- 239000004014 plasticizer Substances 0.000 claims abstract description 17
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 13
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 229920005990 polystyrene resin Polymers 0.000 claims abstract description 13
- 239000012188 paraffin wax Substances 0.000 claims abstract description 12
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 11
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 10
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 41
- -1 vinylsiloxane Chemical class 0.000 claims description 22
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 16
- 229920001971 elastomer Polymers 0.000 claims description 14
- 239000005060 rubber Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 10
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000011863 silicon-based powder Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229920002379 silicone rubber Polymers 0.000 abstract description 5
- 239000002250 absorbent Substances 0.000 abstract description 2
- 230000002745 absorbent Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 230000002708 enhancing effect Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- QSLPNSWXUQHVLP-UHFFFAOYSA-N $l^{1}-sulfanylmethane Chemical compound [S]C QSLPNSWXUQHVLP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
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Abstract
The invention discloses an insulating material for a secondary overvoltage protector of a current transformer and a preparation method thereof, wherein the insulating material comprises the following components in parts by weight: 60-80 parts of vinyl silicone rubber, 30-40 parts of hydrogenated nitrile rubber, 20-30 parts of polystyrene resin, 10-30 parts of epoxy resin, 10-20 parts of chlorinated paraffin, 10-20 parts of tin methyl mercaptide, 7-16 parts of reinforcing fiber, 1-5 parts of ultraviolet absorbent, 1-3 parts of antioxidant, 0.4-1.4 parts of plasticizer, 0.2-0.6 part of coupling agent and 4-10 parts of reinforcing filler. The insulating material disclosed by the invention has excellent insulativity, water resistance, moisture resistance, high temperature resistance and flame retardance, avoids the short circuit phenomenon caused by heating and burning of the resistor in water, is low in production cost, can meet the requirements of the industry, and has a better application prospect.
Description
Technical field
The present invention relates to insulating materials technical fields, and in particular to a kind of Current Transformer Secondary overvoltage protection device
Insulating materials and preparation method thereof.
Background technology
In the power system, current transformer (CT) applies the measurement and control of primary current, mutual inductor when normal work
Secondary side is near short circuit state, and output voltage is very low.In operation if secondary winding open circuit or first winding flow through it is different
Normal electric current (such as lightning current, resonance overcurrent, capacitance charging current, inductance starting current) can all generate thousands of in secondary side
The volt even overvoltage of volts up to ten thousand.This not only causes damages to electrical secondary system insulation, can also make mutual inductor too drastic and scaling loss, even
Jeopardize the life security of operations staff.Current Transformer Secondary Current Transformer Secondary overvoltage protection device is mainly used for various CT
The abnormal overvoltage of secondary side is protected.Protector is fixed in CT secondary windings both ends, and leakage current is minimum when normal operation, in height
Resistance state；When abnormal overcurrent occur in CT secondary circuits open circuit or first winding, the overvoltage that secondary winding generates makes protector
CT secondary circuit short-circuits are shown trouble location, and whether there is or not the outputs of source contact signal by rapid action automatically on panel.Troubleshooting
It afterwards, again can normal operation input again after circuit reinstatement state by manual reset button (or CTB automatically resets).
But existing secondary current mutual inductor secondary overvoltage protector, internal electric source calorific value is big, worked
Continuing big calorific value in journey will cause resistance value to become larger, and be steeply risen to make the temperature of power module rise change rate, Jin Erying
The normal work of secondary current mutual inductor secondary overvoltage protector is rung, in addition, working as secondary current mutual inductor secondary overvoltage
Protector works in the excessively high air of humidity, it is easy to short circuit occur and piezoresistor is caused to burn, therefore, for secondary
For Current Transformer Secondary overvoltage protection device, radiate, dehumidify it is particularly important.
Invention content
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of Current Transformer Secondary overvoltage guarantor is provided
The preparation method of the insulating materials of device is protected, which has excellent insulating properties, waterproof and dampproof property, high temperature resistant and fire-retardant
Property, resistor short circuit phenomenon caused by generating heat, meeting water and burn is avoided, and production cost is low, disclosure satisfy that the requirement of industry,
With preferable application prospect.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
A kind of insulating materials of Current Transformer Secondary overvoltage protection device, includes the component of following weight proportion：Vinyl
60-80 parts of silicon rubber, 30-40 parts of hydrogenated nitrile-butadiene rubber, 20-30 parts of polystyrene resin, 10-30 parts of epoxy resin, chlorination stone
10-20 parts of wax, 10-20 parts of Methyl stannum mercaptide, 7-16 parts of reinforcing fiber, 1-5 parts of ultra-violet absorber, 1-3 parts of antioxidant, plasticising
4-10 parts of 0.4-1.4 parts of agent, 0.2-0.6 parts of coupling agent and reinforcing filler.
Preferably, including the component of following weight proportion：70 parts of vinylsiloxane rubber, gathers 35 parts of hydrogenated nitrile-butadiene rubber
25 parts of styrene resin, 20 parts of epoxy resin, 15 parts of chlorinated paraffin, 15 parts of Methyl stannum mercaptide, 11.5 parts of reinforcing fiber, ultraviolet light
7 parts of 3 parts of absorbent, 2 parts of antioxidant, 0.9 part of plasticizer, 0.4 part of coupling agent and reinforcing filler.
Preferably, the reinforcing fiber is made of the mixing of 30% steel fibre, 30% glass fibre and 40% plant fiber.
Preferably, the ultra-violet absorber is UV944 or UV531 ultra-violet absorbers.
Preferably, the antioxidant is one or more of antioxidant BHT, irgasfos 168, antioxidant 1010
Mixture.
Preferably, the plasticizer is one in trioctyl trimellitate (TOTM), phthalic acid ester, tri trimellitate nonyl ester
Kind or two or more mixtures.
Preferably, the coupling agent is silane coupling agent.
Preferably, it according to mass ratio is 2-4 that the reinforcing filler, which is calcium carbonate powder and silicon powder,:1 mixture.
The present invention also provides a kind of preparation method of the insulating materials of Current Transformer Secondary overvoltage protection device, packets
Include following steps：
（1）In parts by weight, weigh respectively vinyl rubber, hydrogenated nitrile-butadiene rubber, polystyrene resin, epoxy resin,
Coupling agent, which is put into homogenizer, stirs 20-30min, rotating speed 900-1000r/min, and temperature is controlled at 20-30 DEG C, is obtained
Mixture A；
（2）By step（1）Middle mixture A temperature be heated to 40-60 DEG C after by chlorinated paraffin, Methyl stannum mercaptide, reinforcing fiber, increasing
Strong filler is added in homogenizer, while rotating speed being reduced, and stirs 10-20min, obtains mixture B；
（3）By step（2）After middle mixture temperature is reduced to 10-15 DEG C, ultra-violet absorber, antioxidant, plasticizer is added, fills
Divide stirring 10-20min, obtains mixture C.
（4）Mixture C is squeezed out by double screw extruder, is then cooled down, pelletizing, is dried to get current transformer two
The insulating materials of secondary overvoltage protection device.
Preferably, the step（2）Middle blender rotating speed is reduced to 600-800r/min.
Compared with prior art, the present invention has following advantageous effect：The endurance fire-resistant cable material of the present invention has
Higher heat resistance, water resistance and anti-flammability, and production cost is low, disclosure satisfy that the requirement of industry, has preferable application
Foreground, concrete condition are as follows：
（1）The present invention has excellent insulating properties and water and oil-resistant using rubber as main raw material(s), using rubber, carrys out strengthening material
Insulating properties, the water resistance of material, and by the way that polystyrene resin and epoxy resin is added in material, further enhance the insulation of material
Property；Reinforcing fiber is added in rubber makes the intensity of insulating materials increase exponentially, and enhances the intensity, toughness of insulating materials,
Reinforcing filler is added, improves the high temperature resistant and anti-flammability of material, effectively prevents the aging of rubber.The present invention's is used for electricity
The insulation cover of current transformer secondary overvoltage protector uses electro-insulating rubber for main component, not only has excellent insulation
Property, also there is good waterproof and dampproof property and leakproofness, make it that also there is good heat conduction and heat radiation and resistance to height by modified
Mild anti-flammability avoids resistor short circuit phenomenon caused by generating heat, meeting water and burn, extends secondary overvoltage protector
Service life.
（2）It is main that the insulating materials for Current Transformer Secondary overvoltage protection device of the present invention, which uses electro-insulating rubber,
Ingredient not only has excellent insulating properties, also has good waterproof and dampproof property and leakproofness, makes it also with good by modified
Good heat conduction and heat radiation and high temperature resistant and anti-flammability, avoid resistor short circuit phenomenon caused by generating heat, meeting water and burn, prolong
The service life of secondary overvoltage protector is grown.
（3）The entire technical solution of the present invention is easy to operate, it is easy to accomplish, and production cost is relatively low, is suitable for industrial metaplasia
Production.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.These embodiments are merely to illustrate the present invention and do not have to
In limiting the scope of the invention.
Embodiment 1
A kind of insulating materials of Current Transformer Secondary overvoltage protection device, includes the component of following weight proportion：Vinyl
70 parts of silicon rubber, 35 parts of hydrogenated nitrile-butadiene rubber, 25 parts of polystyrene resin, 20 parts of epoxy resin, 15 parts of chlorinated paraffin, methyl sulphur
15 parts of alcohol tin, 11.5 parts of reinforcing fiber, 3 parts of ultra-violet absorber, 2 parts of antioxidant, 0.9 part of plasticizer, 0.4 part of coupling agent and increasing
Strong 7 parts of filler.
Wherein, the reinforcing fiber is made of the mixing of 30% steel fibre, 30% glass fibre and 40% plant fiber.
Wherein, the ultra-violet absorber is UV944 or UV531 ultra-violet absorbers.
Wherein, the antioxidant is the mixed of one or more of antioxidant BHT, irgasfos 168, antioxidant 1010
Close object.
Wherein, the plasticizer be trioctyl trimellitate (TOTM), phthalic acid ester, one kind in tri trimellitate nonyl ester or
Two or more mixtures.
Wherein, the coupling agent is silane coupling agent.
Wherein, it according to mass ratio is 3 that the reinforcing filler, which is calcium carbonate powder and silicon powder,：1 mixture.
The present invention also provides a kind of preparation method of the insulating materials of Current Transformer Secondary overvoltage protection device, packets
Include following steps：
（1）In parts by weight, weigh respectively vinyl rubber, hydrogenated nitrile-butadiene rubber, polystyrene resin, epoxy resin,
Coupling agent, which is put into homogenizer, stirs 25min, rotating speed 950r/min, and temperature is controlled at 25 DEG C, obtains mixture A；
（2）By step（1）Middle mixture A temperature be heated to 50 DEG C after by chlorinated paraffin, Methyl stannum mercaptide, reinforcing fiber, enhancing
Filler is added in homogenizer, while rotating speed being reduced, and stirs 15min, obtains mixture B；
（3）By step（2）After middle mixture temperature is reduced to 12 DEG C, ultra-violet absorber, antioxidant, plasticizer is added, fully
15min is stirred, mixture C is obtained.
（4）Mixture C is squeezed out by double screw extruder, is then cooled down, pelletizing, is dried to get current transformer two
The insulating materials of secondary overvoltage protection device.
Wherein, the step（2）Middle blender rotating speed is reduced to 7000r/min.
Embodiment 2
A kind of insulating materials of Current Transformer Secondary overvoltage protection device, includes the component of following weight proportion：Vinyl
60 parts of silicon rubber, 30 parts of hydrogenated nitrile-butadiene rubber, 20 parts of polystyrene resin, 10 parts of epoxy resin, 10 parts of chlorinated paraffin, methyl sulphur
10 parts of alcohol tin, 7 parts of reinforcing fiber, 1 part of ultra-violet absorber, 1 part of antioxidant, 0.4 part of plasticizer, 0.2 part of coupling agent and enhancing
4 parts of filler.
Wherein, the reinforcing fiber is made of the mixing of 30% steel fibre, 30% glass fibre and 40% plant fiber.
Wherein, the ultra-violet absorber is UV944 or UV531 ultra-violet absorbers.
Wherein, the antioxidant is the mixed of one or more of antioxidant BHT, irgasfos 168, antioxidant 1010
Close object.
Wherein, the plasticizer be trioctyl trimellitate (TOTM), phthalic acid ester, one kind in tri trimellitate nonyl ester or
Two or more mixtures.
Wherein, the coupling agent is silane coupling agent.
Wherein, it according to mass ratio is 2 that the reinforcing filler, which is calcium carbonate powder and silicon powder,:1 mixture.
The present invention also provides a kind of preparation method of the insulating materials of Current Transformer Secondary overvoltage protection device, packets
Include following steps：
（1）In parts by weight, weigh respectively vinyl rubber, hydrogenated nitrile-butadiene rubber, polystyrene resin, epoxy resin,
Coupling agent, which is put into homogenizer, stirs 20min, rotating speed 900r/min, and temperature is controlled at 20 DEG C, obtains mixture A；
（2）By step（1）Middle mixture A temperature be heated to 40 DEG C after by chlorinated paraffin, Methyl stannum mercaptide, reinforcing fiber, enhancing
Filler is added in homogenizer, while rotating speed being reduced, and stirs 10min, obtains mixture B；
（3）By step（2）After middle mixture temperature is reduced to 10 DEG C, ultra-violet absorber, antioxidant, plasticizer is added, fully
10min is stirred, mixture C is obtained.
（4）Mixture C is squeezed out by double screw extruder, is then cooled down, pelletizing, is dried to get current transformer two
The insulating materials of secondary overvoltage protection device.
Wherein, the step（2）Middle blender rotating speed is reduced to 600r/min.
Embodiment 3
A kind of insulating materials of Current Transformer Secondary overvoltage protection device, includes the component of following weight proportion：Vinyl
80 parts of silicon rubber, 40 parts of hydrogenated nitrile-butadiene rubber, 30 parts of polystyrene resin, 30 parts of epoxy resin, 20 parts of chlorinated paraffin, methyl sulphur
20 parts of alcohol tin, 16 parts of reinforcing fiber, 5 parts of ultra-violet absorber, 3 parts of antioxidant, 1.4 parts of plasticizer, 0.6 part of coupling agent and enhancing
10 parts of filler.
Wherein, the reinforcing fiber is made of the mixing of 30% steel fibre, 30% glass fibre and 40% plant fiber.
Wherein, the ultra-violet absorber is UV944 or UV531 ultra-violet absorbers.
Wherein, the antioxidant is the mixed of one or more of antioxidant BHT, irgasfos 168, antioxidant 1010
Close object.
Wherein, the plasticizer be trioctyl trimellitate (TOTM), phthalic acid ester, one kind in tri trimellitate nonyl ester or
Two or more mixtures.
Wherein, the coupling agent is silane coupling agent.
Wherein, it according to mass ratio is 2-4 that the reinforcing filler, which is calcium carbonate powder and silicon powder,:1 mixture.
The present invention also provides a kind of preparation method of the insulating materials of Current Transformer Secondary overvoltage protection device, packets
Include following steps：
（1）In parts by weight, weigh respectively vinyl rubber, hydrogenated nitrile-butadiene rubber, polystyrene resin, epoxy resin,
Coupling agent, which is put into homogenizer, stirs 30min, rotating speed 1000r/min, and temperature is controlled at 30 DEG C, obtains mixture A；
（2）By step（1）Middle mixture A temperature be heated to 60 DEG C after by chlorinated paraffin, Methyl stannum mercaptide, reinforcing fiber, enhancing
Filler is added in homogenizer, while rotating speed being reduced, and stirs 20min, obtains mixture B；
（3）By step（2）After middle mixture temperature is reduced to 15 DEG C, ultra-violet absorber, antioxidant, plasticizer is added, fully
20min is stirred, mixture C is obtained.
（4）Mixture C is squeezed out by double screw extruder, is then cooled down, pelletizing, is dried to get current transformer two
The insulating materials of secondary overvoltage protection device.
Wherein, the step（2）Middle blender rotating speed is reduced to 800r/min.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of insulating materials of Current Transformer Secondary overvoltage protection device, which is characterized in that including following weight proportion
Component：60-80 parts of vinylsiloxane rubber, 30-40 parts of hydrogenated nitrile-butadiene rubber, 20-30 parts of polystyrene resin, epoxy resin
10-30 parts, it is 10-20 parts of chlorinated paraffin, 10-20 parts of Methyl stannum mercaptide, 7-16 parts of reinforcing fiber, 1-5 parts of ultra-violet absorber, anti-
4-10 parts of 1-3 parts of oxygen agent, 0.4-1.4 parts of plasticizer, 0.2-0.6 parts of coupling agent and reinforcing filler.
2. the insulating materials of Current Transformer Secondary overvoltage protection device according to claim 1, which is characterized in that packet
Include the component of following weight proportion：70 parts of vinylsiloxane rubber, 35 parts of hydrogenated nitrile-butadiene rubber, 25 parts of polystyrene resin, epoxy
20 parts of resin, 15 parts of chlorinated paraffin, 15 parts of Methyl stannum mercaptide, 11.5 parts of reinforcing fiber, 3 parts of ultra-violet absorber, antioxidant 2
Part, 0.9 part of plasticizer, 0.4 part of coupling agent and 7 parts of reinforcing filler.
3. the insulating materials of Current Transformer Secondary overvoltage protection device according to claim 1, which is characterized in that institute
Reinforcing fiber is stated to be made of the mixing of 30% steel fibre, 30% glass fibre and 40% plant fiber.
4. the insulating materials of Current Transformer Secondary overvoltage protection device according to claim 1, which is characterized in that institute
It is UV944 or UV531 ultra-violet absorbers to state ultra-violet absorber.
5. the insulating materials of Current Transformer Secondary overvoltage protection device according to claim 1, which is characterized in that institute
State the mixture that antioxidant is one or more of antioxidant BHT, irgasfos 168, antioxidant 1010.
6. the insulating materials of Current Transformer Secondary overvoltage protection device according to claim 1, which is characterized in that institute
State the mixing that plasticizer is one or more of trioctyl trimellitate (TOTM), phthalic acid ester, tri trimellitate nonyl ester
Object.
7. the insulating materials of Current Transformer Secondary overvoltage protection device according to claim 1, which is characterized in that institute
It is silane coupling agent to state coupling agent.
8. the insulating materials of Current Transformer Secondary overvoltage protection device according to claim 1, which is characterized in that institute
It according to mass ratio is 2-4 that state reinforcing filler, which be calcium carbonate powder and silicon powder,:1 mixture.
9. a kind of insulating materials according to claim 1-8 any one of them Current Transformer Secondary overvoltage protection devices
Preparation method, which is characterized in that include the following steps：
（1）In parts by weight, weigh respectively vinyl rubber, hydrogenated nitrile-butadiene rubber, polystyrene resin, epoxy resin,
Coupling agent, which is put into homogenizer, stirs 20-30min, rotating speed 900-1000r/min, and temperature is controlled at 20-30 DEG C, is obtained
Mixture A；
（2）By step（1）Middle mixture A temperature be heated to 40-60 DEG C after by chlorinated paraffin, Methyl stannum mercaptide, reinforcing fiber, increasing
Strong filler is added in homogenizer, while rotating speed being reduced, and stirs 10-20min, obtains mixture B；
（3）By step（2）After middle mixture temperature is reduced to 10-15 DEG C, ultra-violet absorber, antioxidant, plasticizer is added, fills
Divide stirring 10-20min, obtains mixture C；
（4）Mixture C is squeezed out by double screw extruder, is then cooled down, pelletizing, is dried to get Current Transformer Secondary mistake
The insulating materials of voltage protector.
10. the preparation method of the insulating materials of Current Transformer Secondary overvoltage protection device according to claim 9,
It is characterized in that, the step（2）Middle blender rotating speed is reduced to 600-800r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810199987.2A CN108384249A (en) | 2018-03-12 | 2018-03-12 | Insulating material for secondary overvoltage protector of current transformer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810199987.2A CN108384249A (en) | 2018-03-12 | 2018-03-12 | Insulating material for secondary overvoltage protector of current transformer and preparation method thereof |
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| CN110128829A (en) * | 2019-05-13 | 2019-08-16 | 安徽升隆电气有限公司 | A kind of current transformer insulating materials and preparation method thereof |
| CN115029946A (en) * | 2022-06-29 | 2022-09-09 | 界首市宏利塑料股份有限公司 | Wear-resistant PE plastic rope and production process thereof |
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