CN112406239A - Military power equipment insulator and preparation method thereof - Google Patents
Military power equipment insulator and preparation method thereof Download PDFInfo
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- CN112406239A CN112406239A CN202011113076.7A CN202011113076A CN112406239A CN 112406239 A CN112406239 A CN 112406239A CN 202011113076 A CN202011113076 A CN 202011113076A CN 112406239 A CN112406239 A CN 112406239A
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- 239000012212 insulator Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000002344 surface layer Substances 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 30
- 239000012065 filter cake Substances 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000011812 mixed powder Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 241000209094 Oryza Species 0.000 claims description 9
- 235000007164 Oryza sativa Nutrition 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000011363 dried mixture Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000010881 fly ash Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 235000009566 rice Nutrition 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000000855 fermentation Methods 0.000 claims description 6
- 230000004151 fermentation Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 125000005336 allyloxy group Chemical group 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 3
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000000967 suction filtration Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 abstract description 12
- 229920001707 polybutylene terephthalate Polymers 0.000 abstract description 12
- 239000011112 polyethylene naphthalate Substances 0.000 abstract description 12
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 12
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 12
- -1 polyethylene terephthalate Polymers 0.000 abstract description 9
- 239000011810 insulating material Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/062—Copolymers with monomers not covered by C09D133/06
- C09D133/064—Copolymers with monomers not covered by C09D133/06 containing anhydride, COOH or COOM groups, with M being metal or onium-cation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/12—Coating on the layer surface on paper layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/206—Insulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/04—Insulators
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Insulating Bodies (AREA)
Abstract
The invention relates to the technical field of insulating materials, in particular to a military power equipment insulator and a preparation method thereof, wherein the insulator comprises an insulating substrate and insulating surface layers, the insulating surface layers are arranged on the upper side and the lower side of the insulating substrate in a gluing mode, and the insulating substrate comprises the following components in parts by weight: 20-25 parts of PET (polyethylene terephthalate), 15-20 parts of PEN (polyethylene naphthalate), 5-15 parts of PBT (polybutylene terephthalate), wherein the insulating surface layer is an inorganic ceramic fiber paper layer with an insulating coating on the surface. According to the invention, the insulating substrate and the insulating surface layer are arranged, wherein the insulating substrate is made of three component materials of PET, PEN and PBT, the insulating property of the insulating material is enhanced, and the insulating surface layer is too high in flexibility.
Description
Technical Field
The invention relates to the technical field of insulating materials, in particular to a military power equipment insulator and a preparation method thereof.
Background
The military power equipment is used outdoors for a long time, the service life of the prior insulator is short, and the aging speed is high, so the insulator of the military power equipment and the preparation method thereof are provided for solving the problems.
Disclosure of Invention
The invention aims to provide an insulator for military power equipment and a preparation method thereof, wherein the insulator comprises an insulating substrate and an insulating surface layer, wherein the insulating substrate is made of three component materials of PET, PEN and PBT, the insulating property of the insulating material is enhanced, and the insulating surface layer is too high in flexibility.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a for military use power equipment insulator, includes insulating substrate and insulating surface course, insulating surface course veneer sets up the upper and lower both sides at insulating substrate, insulating substrate includes following component according to the weight component: 20-25 parts of PET (polyethylene terephthalate), 15-20 parts of PEN (polyethylene naphthalate), 5-15 parts of PBT (polybutylene terephthalate), wherein the insulating surface layer is an inorganic ceramic fiber paper layer with an insulating coating on the surface.
A preparation method of an insulator of military electrical equipment comprises the following steps:
1. manufacturing an insulating substrate: compounding and stirring 20-25 parts of PET, 15-20 parts of PEN and 5-15 parts of PBT, and then extruding and molding to obtain an insulating substrate;
2. manufacturing an insulating surface layer: coating the insulating coating on the surface of the inorganic ceramic fiber paper layer, and then drying to obtain an insulating surface layer;
3. and gluing the insulating surface layer on the surface of the insulating substrate through glue solution to obtain the insulator.
Preferably, the insulating coating manufacturing step comprises:
1. weighing 300-500 g of rice hull and 200-300 g of fly ash in sequence, placing the rice hull and the fly ash in an oven, drying the rice hull and the fly ash to constant weight at the temperature of 105-110 ℃ to obtain a dried mixture, transferring the dried mixture into a universal pulverizer, pulverizing the dried mixture, sieving the pulverized mixture with a 325-400 mesh sieve to obtain mixed powder, measuring 1-2L of biogas slurry, carrying out centrifugal separation to remove lower-layer precipitates, collecting upper-layer clear liquid, transferring the upper-layer clear liquid into a fermentation tank, adding 300-400 g of the obtained mixed powder, 30-50 mL of a citric acid solution with the mass fraction of 6-8%, carrying out constant-temperature closed fermentation for 3-5 days at the temperature of 35-38 ℃ and the rotation speed of 120-160 r/min, carrying out suction filtration to remove filtrate, and washing filter cakes with deionized water until;
2. transferring the washed filter cake into an oven, drying the filter cake to constant weight at 105-110 ℃, then placing the dried filter cake into a muffle furnace, introducing nitrogen into the furnace at a rate of 3-5 mL/min, heating the dried filter cake to 600-680 ℃ at a rate of 6-8 ℃/min under the protection of the nitrogen, carrying out heat preservation and calcination for 45-60 min, cooling the dried filter cake to room temperature along with the furnace to obtain micro-nano mixed powder, sequentially adding 1-2 g of sodium dodecyl sulfate, 40-50 g of the obtained micro-nano mixed powder and 150-200 mL of deionized water into a three-neck flask with a stirrer, regulating the stirring speed to 400-500 r/min, dropwise adding 3-5% hydrochloric acid in a stirring state, regulating the pH value to 6.0-6.4, then adding 4-8 gKH-570, and then stirring and mixing the mixture at a rotation speed of 600-800 r/min for 8-10 h to obtain modified sol, standby;
3. weighing 100-120 mL of 4-6% allyloxy nonyl phenol ether ammonium sulfate solution by mass fraction, adding the solution into a three-necked flask with a stirrer, setting the stirring speed to 1000-1200 r/min, then sequentially weighing 30-35 g of methyl methacrylate, 30-35 g of butyl acrylate and 2-3 g of acrylic acid, uniformly mixing, dropwise adding the mixture into the three-necked flask through a dropping funnel in a stirring state, controlling the dropping within 10-15 min, and continuing stirring and mixing at high speed for 8-10 min after the dropping is finished to obtain an emulsion;
4. sequentially measuring 15-20 mL of the standby modified sol obtained in the step 2, adding 8-10 mL of a potassium persulfate solution with the mass fraction of 2-4% into a four-mouth flask, placing the flask into a digital display speed measurement constant-temperature magnetic stirrer, setting the temperature to be 80-85 ℃, and the stirring speed to be 480-500 r/min, dropwise adding the obtained emulsion into the four-mouth flask through a dropping funnel under the constant-temperature stirring state, controlling the emulsion to completely drip within 2-4 h, continuing to perform heat preservation stirring reaction for 60-90 min after the dropwise adding is finished, naturally cooling to room temperature, dropwise adding ammonia water with the mass fraction of 10-15%, and adjusting the pH to be neutral to obtain the insulating coating.
Compared with the prior art, the invention has the beneficial effects that: through setting up insulating substrate and insulating surface course, wherein, insulating substrate is made by PET, PEN, PBT three kinds of component materials, strengthens insulating material's insulating properties, too high compliance simultaneously, in the insulating surface course that sets up, contains insulating coating, this insulating coating still can keep good stability under ultraviolet irradiation, has excellent uvioresistant performance, has effectively increased the weatherability of insulator, has prolonged the life of insulator, suitable using widely.
Drawings
FIG. 1 is a schematic view of the overall structure of an insulator for military power equipment and a method for manufacturing the insulator.
In the figure: 1. an insulating substrate; 2. and an insulating surface layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the present invention.
Example (b):
referring to fig. 1, the present embodiment provides a technical solution:
the utility model provides a for military use power equipment insulator, includes insulating substrate and insulating surface course, insulating surface course veneer sets up the upper and lower both sides at insulating substrate, insulating substrate includes following component according to the weight component: 20-25 parts of PET (polyethylene terephthalate), 15-20 parts of PEN (polyethylene naphthalate), 5-15 parts of PBT (polybutylene terephthalate), wherein the insulating surface layer is an inorganic ceramic fiber paper layer with an insulating coating on the surface.
A preparation method of an insulator of military electrical equipment comprises the following steps:
1. manufacturing an insulating substrate: compounding and stirring 20-25 parts of PET, 15-20 parts of PEN and 5-15 parts of PBT, and then extruding and molding to obtain an insulating substrate;
2. manufacturing an insulating surface layer: coating the insulating coating on the surface of the inorganic ceramic fiber paper layer, and then drying to obtain an insulating surface layer;
3. and gluing the insulating surface layer on the surface of the insulating substrate through glue solution to obtain the insulator.
Preferably, the insulating coating manufacturing step comprises:
1. weighing 300-500 g of rice hull and 200-300 g of fly ash in sequence, placing the rice hull and the fly ash in an oven, drying the rice hull and the fly ash to constant weight at the temperature of 105-110 ℃ to obtain a dried mixture, transferring the dried mixture into a universal pulverizer, pulverizing the dried mixture, sieving the pulverized mixture with a 325-400 mesh sieve to obtain mixed powder, measuring 1-2L of biogas slurry, carrying out centrifugal separation to remove lower-layer precipitates, collecting upper-layer clear liquid, transferring the upper-layer clear liquid into a fermentation tank, adding 300-400 g of the obtained mixed powder, 30-50 mL of a citric acid solution with the mass fraction of 6-8%, carrying out constant-temperature closed fermentation for 3-5 days at the temperature of 35-38 ℃ and the rotation speed of 120-160 r/min, carrying out suction filtration to remove filtrate, and washing filter cakes with deionized water until;
2. transferring the washed filter cake into an oven, drying the filter cake to constant weight at 105-110 ℃, then placing the dried filter cake into a muffle furnace, introducing nitrogen into the furnace at a rate of 3-5 mL/min, heating the dried filter cake to 600-680 ℃ at a rate of 6-8 ℃/min under the protection of the nitrogen, carrying out heat preservation and calcination for 45-60 min, cooling the dried filter cake to room temperature along with the furnace to obtain micro-nano mixed powder, sequentially adding 1-2 g of sodium dodecyl sulfate, 40-50 g of the obtained micro-nano mixed powder and 150-200 mL of deionized water into a three-neck flask with a stirrer, regulating the stirring speed to 400-500 r/min, dropwise adding 3-5% hydrochloric acid in a stirring state, regulating the pH value to 6.0-6.4, then adding 4-8 gKH-570, and then stirring and mixing the mixture at a rotation speed of 600-800 r/min for 8-10 h to obtain modified sol, standby;
3. weighing 100-120 mL of 4-6% allyloxy nonyl phenol ether ammonium sulfate solution by mass fraction, adding the solution into a three-necked flask with a stirrer, setting the stirring speed to 1000-1200 r/min, then sequentially weighing 30-35 g of methyl methacrylate, 30-35 g of butyl acrylate and 2-3 g of acrylic acid, uniformly mixing, dropwise adding the mixture into the three-necked flask through a dropping funnel in a stirring state, controlling the dropping within 10-15 min, and continuing stirring and mixing at high speed for 8-10 min after the dropping is finished to obtain an emulsion; a
4. Sequentially measuring 15-20 mL of the standby modified sol obtained in the step 2, adding 8-10 mL of a potassium persulfate solution with the mass fraction of 2-4% into a four-mouth flask, placing the flask into a digital display speed measurement constant-temperature magnetic stirrer, setting the temperature to be 80-85 ℃, and the stirring speed to be 480-500 r/min, dropwise adding the obtained emulsion into the four-mouth flask through a dropping funnel under the constant-temperature stirring state, controlling the emulsion to completely drip within 2-4 h, continuing to perform heat preservation stirring reaction for 60-90 min after the dropwise adding is finished, naturally cooling to room temperature, dropwise adding ammonia water with the mass fraction of 10-15%, and adjusting the pH to be neutral to obtain the insulating coating.
The working principle is as follows: through setting up insulating substrate and insulating surface course, wherein, insulating substrate is made by PET, PEN, PBT three kinds of component materials, strengthens insulating material's insulating properties, too high compliance simultaneously, in the insulating surface course that sets up, contains insulating coating, this insulating coating still can keep good stability under ultraviolet irradiation, has excellent uvioresistant performance, has effectively increased the weatherability of insulator, has prolonged the life of insulator, suitable using widely.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A military electrical equipment insulator comprises an insulating substrate (1) and an insulating surface layer (2), and is characterized in that: the insulation surface layer (2) is arranged on the upper side and the lower side of the insulation substrate (1) in a gluing mode, and the insulation substrate (1) comprises the following components in parts by weight: 20-25 parts of PET, 15-20 parts of PEN and 5-15 parts of PBT, wherein the insulating surface layer (2) is an inorganic ceramic fiber paper layer with an insulating coating on the surface.
2. A preparation method of an insulator of military electrical equipment is characterized by comprising the following steps: the method comprises the following steps:
manufacturing an insulating substrate: compounding and stirring 20-25 parts of PET, 15-20 parts of PEN and 5-15 parts of PBT, and then extruding and molding to obtain an insulating substrate;
manufacturing an insulating surface layer: coating the insulating coating on the surface of the inorganic ceramic fiber paper layer, and then drying to obtain an insulating surface layer;
and gluing the insulating surface layer on the surface of the insulating substrate through glue solution to obtain the insulator.
3. A military power equipment insulator according to claim 1, wherein: the manufacturing steps of the insulating coating comprise:
weighing 300-500 g of rice hull and 200-300 g of fly ash in sequence, placing the rice hull and the fly ash in an oven, drying the rice hull and the fly ash to constant weight at the temperature of 105-110 ℃ to obtain a dried mixture, transferring the dried mixture into a universal pulverizer, pulverizing the dried mixture, sieving the pulverized mixture with a 325-400 mesh sieve to obtain mixed powder, measuring 1-2L of biogas slurry, carrying out centrifugal separation to remove lower-layer precipitates, collecting upper-layer clear liquid, transferring the upper-layer clear liquid into a fermentation tank, adding 300-400 g of the obtained mixed powder, 30-50 mL of a citric acid solution with the mass fraction of 6-8%, carrying out constant-temperature closed fermentation for 3-5 days at the temperature of 35-38 ℃ and the rotation speed of 120-160 r/min, carrying out suction filtration to remove filtrate, and washing filter cakes with deionized water until;
transferring the washed filter cake into an oven, drying the filter cake to constant weight at 105-110 ℃, then placing the dried filter cake into a muffle furnace, introducing nitrogen into the furnace at a rate of 3-5 mL/min, heating the dried filter cake to 600-680 ℃ at a rate of 6-8 ℃/min under the protection of the nitrogen, carrying out heat preservation and calcination for 45-60 min, cooling the dried filter cake to room temperature along with the furnace to obtain micro-nano mixed powder, sequentially adding 1-2 g of sodium dodecyl sulfate, 40-50 g of the obtained micro-nano mixed powder and 150-200 mL of deionized water into a three-neck flask with a stirrer, regulating the stirring speed to 400-500 r/min, dropwise adding 3-5% hydrochloric acid in a stirring state, regulating the pH value to 6.0-6.4, then adding 4-8 gKH-570, and then stirring and mixing the mixture at a rotation speed of 600-800 r/min for 8-10 h to obtain modified sol, standby;
weighing 100-120 mL of 4-6% allyloxy nonyl phenol ether ammonium sulfate solution by mass fraction, adding the solution into a three-necked flask with a stirrer, setting the stirring speed to 1000-1200 r/min, then sequentially weighing 30-35 g of methyl methacrylate, 30-35 g of butyl acrylate and 2-3 g of acrylic acid, uniformly mixing, dropwise adding the mixture into the three-necked flask through a dropping funnel in a stirring state, controlling the dropping within 10-15 min, and continuing stirring and mixing at high speed for 8-10 min after the dropping is finished to obtain an emulsion;
sequentially measuring 15-20 mL of the standby modified sol obtained in the step 2), 8-10 mL of a potassium persulfate solution with the mass fraction of 2-4%, adding the potassium persulfate solution into a four-mouth flask, placing the flask into a digital display speed measurement constant-temperature magnetic stirrer, setting the temperature to be 80-85 ℃, and the stirring speed to be 480-500 r/min, dropwise adding the obtained emulsion into the four-mouth flask through a dropping funnel under the constant-temperature stirring state, controlling the dripping to be finished within 2-4 h, continuing to perform heat preservation stirring reaction for 60-90 min after the dripping is finished, naturally cooling to room temperature, dropwise adding ammonia water with the mass fraction of 10-15%, and adjusting the pH to be neutral to obtain the insulating coating.
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| CN202011113076.7A CN112406239A (en) | 2020-10-16 | 2020-10-16 | Military power equipment insulator and preparation method thereof |
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