CN111269480A - Super-strong weather-resistant TPE material applied to insulator umbrella cover and preparation method - Google Patents
Super-strong weather-resistant TPE material applied to insulator umbrella cover and preparation method Download PDFInfo
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- CN111269480A CN111269480A CN202010204216.5A CN202010204216A CN111269480A CN 111269480 A CN111269480 A CN 111269480A CN 202010204216 A CN202010204216 A CN 202010204216A CN 111269480 A CN111269480 A CN 111269480A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
- C08L23/0853—Ethene vinyl acetate copolymers
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- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- 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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Insulating Materials (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
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Abstract
The invention discloses a super-strong weather-resistant TPE material applied to an insulator umbrella cover, which comprises the following components: polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer. According to the material, a modified ultrathin titanium sheet, polyvinyl imidazole and micro-nano zinc dioxide are added into a traditional TPE material, wherein the modified ultrathin titanium sheet is subjected to secondary oxidation to form a honeycomb-shaped nanotube array, so that the wear resistance of the surface of the TPE material can be improved, and the tear resistance of the material can be improved; the micro-nano zinc dioxide can obviously improve the ultraviolet resistance of the material; the addition of polyvinylimidazole is beneficial to improving the compatibility of organic and inorganic materials. The super-strong weather-proof TPE material prepared by the invention is very suitable for preparing an insulator umbrella cover.
Description
Technical Field
The invention relates to the technical field of TPE (thermoplastic elastomer) materials, in particular to a super-strong weather-resistant TPE material applied to an insulator umbrella cover and a preparation method thereof.
Background
Thermoplastic elastomer TPE/TPR, also known as elastomer or elastomer. The product not only has the excellent performances of high elasticity, aging resistance and oil resistance of the traditional cross-linked vulcanized rubber, but also has the characteristics of convenient processing and wide processing mode of common plastics. The TPE/TPR material can be produced by adopting processing modes such as injection molding, extrusion, blow molding and the like, so that the processing process is simplified, and the processing cost is reduced, therefore, the TPE/TPR material becomes the latest material for replacing the traditional rubber.
The composite insulator has great superiority in the aspects of weight, zero value measurement, pollution flashover voltage resistance and the like, particularly in the aspect of high pollution flashover voltage, compared with a porcelain insulator, and is more and more favored by the industry. The traditional epoxy resin has excellent electrical and mechanical properties and processing property, so that the epoxy resin can be used as a structural insulating material to be used as an umbrella cover of an insulator. The application of epoxy resins in the power industry has been successful for 40 years in foreign countries. However, in order to improve the weather resistance of the insulator umbrella cover in a severe application environment, it is necessary to research a super-strong weather-resistant TPE material applied to the insulator umbrella cover and a preparation method thereof.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a super-strong weather-resistant TPE material applied to an insulator umbrella cover and a preparation method thereof.
The technical scheme of the invention is as follows:
the super-strong weather-resistant TPE material applied to the insulator umbrella cover comprises the following components: polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer.
Preferably, the super-strong weather-proof TPE material applied to the insulator umbrella cover consists of the following components in percentage by weight:
40-55% of polyethylene resin;
0.1 to 0.2 percent of modified ultrathin titanium sheet
15-25% of a propylene-ethylene copolymer;
polyvinyl imidazole 1-2%
0.5 to 1 percent of micro-nano zinc dioxide
The balance of ethylene-vinyl acetate copolymer.
Preferably, the polyethylene resin is high-density polyethylene particles produced by a low-pressure method, and the weight-average molecular weight of the polyethylene particles is 200000-500000.
Preferably, the modified ultrathin titanium sheet is 50-80 nm.
Preferably, the propylene-ethylene copolymer is a copolymer particle produced by adopting a metallocene catalyst and a novel solution polymerization process, wherein the content of ethylene is 12-20% by weight, and the melt flow index is 320-400g/10 min.
Preferably, the particle size of the micro-nano zinc dioxide is 500-1200 nm.
Preferably, the content of the vinyl acetate in the ethylene-vinyl acetate copolymer is 15-30% by weight, and the melt flow index of the ethylene-vinyl acetate copolymer is 15-40g/10 min.
A preparation method of a super-strong weather-proof TPE material applied to an insulator umbrella cover comprises the following steps:
A. at room temperature, taking an ultrathin titanium sheet as an anode, taking metal platinum as a cathode, carrying out primary oxidation on an electrolyte solution comprising 0.2-0.5% of ammonium fluoride (mass fraction), ethylene glycol and 1-2.5% of water (volume fraction), wherein the oxidation voltage is 60V, the time is 10-20min, and a titanium dioxide array is formed on the surface of the ultrathin titanium sheet;
B. taking out the ultrathin titanium sheet, placing the ultrathin titanium sheet in deionized water, removing the titanium dioxide array on the surface of the ultrathin titanium sheet through ultrasonic oscillation, and drying;
C. b, taking the ultrathin titanium sheet treated in the step B as an anode and metal platinum as a cathode, carrying out secondary oxidation in the electrolyte in the step A, wherein the oxidation voltage is 20-50V, the oxidation time is 30-45min, and taking out the ultrathin titanium sheet and then cleaning the ultrathin titanium sheet by using deionized water;
D. mixing polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer according to a ratio; and uniformly mixing the prepared materials in a mixer, discharging, and granulating by using an extruder.
The invention has the advantages that: the invention discloses a super-strong weather-proof TPE material applied to an insulator umbrella cover, which comprises the following components: polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer. According to the material, a modified ultrathin titanium sheet, polyvinyl imidazole and micro-nano zinc dioxide are added into a traditional TPE material, wherein the modified ultrathin titanium sheet is secondarily oxidized to form a honeycomb-shaped nanotube array, the nanotube array has very good strength and elasticity, and has the function of increasing surface friction force, so that the wear resistance of the surface of the TPE material can be improved, and the tear resistance of the material can be improved; the micro-nano zinc dioxide can obviously improve the ultraviolet resistance of the material; the addition of polyvinylimidazole is beneficial to improving the compatibility of organic and inorganic materials. The super-strong weather-proof TPE material prepared by the invention has super-high fluidity, namely higher melt flow rate, can meet the requirement of high-speed extrusion, avoids the phenomenon of shark skin-shaped melt fracture in the extrusion process, and is very suitable for preparing the insulator umbrella cover.
Detailed Description
Example 1
The super-strong weather-resistant TPE material applied to the insulator umbrella cover comprises the following components in percentage by weight:
52% of polyethylene resin;
0.15 percent of modified ultrathin titanium plate
20% of a propylene-ethylene copolymer;
polyvinyl imidazole 1.5%
0.8 percent of micro-nano zinc dioxide
The balance of ethylene-vinyl acetate copolymer.
The polyethylene resin is high-density polyethylene particles produced by a low-pressure method, and the weight-average molecular weight of the polyethylene resin is 200000-500000.
The modified ultrathin titanium sheet is 50-80 nm.
The propylene-ethylene copolymer is copolymer particles produced by adopting a metallocene catalyst and a novel solution polymerization process, wherein the content of ethylene is 16 percent by weight, and the melt flow index is 400g/10 min.
The particle size of the micro-nano zinc dioxide is 500-1200 nm.
The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 18 percent by weight, and the melt flow index of the ethylene-vinyl acetate copolymer is 30-40g/10 min.
A preparation method of a super-strong weather-proof TPE material applied to an insulator umbrella cover comprises the following steps:
A. at room temperature, an ultrathin titanium sheet is used as an anode, metal platinum is used as a cathode, an electrolyte is composed of 0.35% of ammonium fluoride (mass fraction), ethylene glycol and 2.2% of water (volume fraction), primary oxidation is carried out, the oxidation voltage is 60V, the time is 15min, and a titanium dioxide array is formed on the surface of the ultrathin titanium sheet;
B. taking out the ultrathin titanium sheet, placing the ultrathin titanium sheet in deionized water, removing the titanium dioxide array on the surface of the ultrathin titanium sheet through ultrasonic oscillation, and drying;
C. b, taking the ultrathin titanium sheet treated in the step B as an anode and metal platinum as a cathode, carrying out secondary oxidation in the electrolyte in the step A, wherein the oxidation voltage is 45V and the oxidation time is 35min, and taking out the ultrathin titanium sheet and then cleaning the ultrathin titanium sheet by using deionized water;
D. mixing polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer according to a ratio; and uniformly mixing the prepared materials in a mixer, discharging, and granulating by using an extruder.
Example 2
The super-strong weather-resistant TPE material applied to the insulator umbrella cover comprises the following components in percentage by weight:
55% of polyethylene resin;
0.1 percent of modified ultrathin titanium plate
25% of a propylene-ethylene copolymer;
polyvinyl imidazole 1%
1 percent of micro-nano zinc dioxide
The balance of ethylene-vinyl acetate copolymer.
The polyethylene resin is high-density polyethylene particles produced by a low-pressure method, and the weight-average molecular weight of the polyethylene resin is 200000-500000.
The modified ultrathin titanium sheet is 50-80 nm.
The propylene-ethylene copolymer is copolymer particles produced by adopting a metallocene catalyst and a novel solution polymerization process, wherein the content of ethylene is 12 percent by weight, and the melt flow index is 400g/10 min.
The particle size of the micro-nano zinc dioxide is 500-1200 nm.
The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 30 percent by weight, and the melt flow index of the ethylene-vinyl acetate copolymer is 15-25g/10 min.
A preparation method of a super-strong weather-proof TPE material applied to an insulator umbrella cover comprises the following steps:
A. at room temperature, an ultrathin titanium sheet is used as an anode, metal platinum is used as a cathode, an electrolyte is composed of 0.5% of ammonium fluoride (mass fraction), ethylene glycol and 1% of water (volume fraction), primary oxidation is carried out, the oxidation voltage is 60V, the time is 20min, and a titanium dioxide array is formed on the surface of the ultrathin titanium sheet;
B. taking out the ultrathin titanium sheet, placing the ultrathin titanium sheet in deionized water, removing the titanium dioxide array on the surface of the ultrathin titanium sheet through ultrasonic oscillation, and drying;
C. b, taking the ultrathin titanium sheet treated in the step B as an anode and metal platinum as a cathode, carrying out secondary oxidation in the electrolyte in the step A, wherein the oxidation voltage is 20V, the oxidation time is 45min, and taking out the ultrathin titanium sheet and then cleaning the ultrathin titanium sheet by using deionized water;
D. mixing polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer according to a ratio; and uniformly mixing the prepared materials in a mixer, discharging, and granulating by using an extruder.
Example 3
The super-strong weather-resistant TPE material applied to the insulator umbrella cover comprises the following components in percentage by weight:
40% of polyethylene resin;
0.2 percent of modified ultrathin titanium plate
15% of a propylene-ethylene copolymer;
polyvinyl imidazole 2%
0.5 percent of micro-nano zinc dioxide
The balance of ethylene-vinyl acetate copolymer.
The polyethylene resin is high-density polyethylene particles produced by a low-pressure method, and the weight-average molecular weight of the polyethylene resin is 200000-500000.
The modified ultrathin titanium sheet is 50-80 nm.
The propylene-ethylene copolymer is copolymer particles produced by adopting a metallocene catalyst and a novel solution polymerization process, wherein the content of ethylene is 20 percent by weight, and the melt flow index is 400g/10 min.
The particle size of the micro-nano zinc dioxide is 500-1200 nm.
The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 15 percent by weight, and the melt flow index of the ethylene-vinyl acetate copolymer is 30-40g/10 min.
A preparation method of a super-strong weather-proof TPE material applied to an insulator umbrella cover comprises the following steps:
A. at room temperature, an ultrathin titanium sheet is used as an anode, metal platinum is used as a cathode, an electrolyte is composed of 0.2% of ammonium fluoride (mass fraction), ethylene glycol and 2.5% of water (volume fraction), primary oxidation is carried out, the oxidation voltage is 60V, the time is 10min, and a titanium dioxide array is formed on the surface of the ultrathin titanium sheet;
B. taking out the ultrathin titanium sheet, placing the ultrathin titanium sheet in deionized water, removing the titanium dioxide array on the surface of the ultrathin titanium sheet through ultrasonic oscillation, and drying;
C. b, taking the ultrathin titanium sheet treated in the step B as an anode and metal platinum as a cathode, carrying out secondary oxidation in the electrolyte in the step A, wherein the oxidation voltage is 50V, the oxidation time is 30min, and taking out the ultrathin titanium sheet and then cleaning the ultrathin titanium sheet by using deionized water;
D. mixing polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer according to a ratio; and uniformly mixing the prepared materials in a mixer, discharging, and granulating by using an extruder.
Comparative example 1
The modified ultrathin titanium sheet in the example 1 is removed, and the rest proportion and the preparation method are unchanged.
The materials of examples 1-3 and comparative example 1 were tested in the following comparative way, with specific test methods being described in DL/T376-.
Table 1: results of testing the materials of examples 1-3 and comparative example 1;
according to the test data, the modified ultrathin titanium sheet is added into the super-strong weather-resistant TPE material applied to the insulator umbrella cover, so that various performances of the material, particularly weather resistance, can be remarkably improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The super-strong weather-proof TPE material applied to the insulator umbrella cover is characterized by comprising the following components: polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer.
2. The super weather-resistant TPE material applied to the insulator umbrella cover as claimed in claim 1, is characterized by comprising the following components in percentage by weight:
40-55% of polyethylene resin;
0.1 to 0.2 percent of modified ultrathin titanium sheet
15-25% of a propylene-ethylene copolymer;
polyvinyl imidazole 1-2%
0.5 to 1 percent of micro-nano zinc dioxide
The balance of ethylene-vinyl acetate copolymer.
3. The super weather-resistant TPE material applied to the insulator umbrella cover as claimed in claim 1, wherein the polyethylene resin is high-density polyethylene particles produced by a low-pressure method, and the weight-average molecular weight of the polyethylene resin is 200000-500000.
4. The super weather-resistant TPE material applied to the insulator umbrella cover as claimed in claim 1, wherein the modified ultrathin titanium sheet is 50-80 nm.
5. The super weather-resistant TPE material applied to the insulator umbrella cover as claimed in claim 1, wherein the propylene-ethylene copolymer is copolymer particles produced by adopting a metallocene catalyst and a novel solution polymerization process, wherein the ethylene content is 12-20% by weight, and the melt flow index is 400g/10 min.
6. The super weather-resistant TPE material applied to the insulator umbrella cover as claimed in claim 1, wherein the particle size of the micro-nano zinc dioxide is 500-1200 nm.
7. The super weather-resistant TPE material applied to the insulator umbrella cover as claimed in claim 1, wherein the content of vinyl acetate in the ethylene-vinyl acetate copolymer is 15-30% by weight, and the melt flow index of the ethylene-vinyl acetate copolymer is 15-40g/10 min.
8. A preparation method of a super-strong weather-resistant TPE material applied to an insulator umbrella cover is characterized by comprising the following steps:
A. at room temperature, taking an ultrathin titanium sheet as an anode, taking metal platinum as a cathode, carrying out primary oxidation on an electrolyte solution comprising 0.2-0.5% of ammonium fluoride (mass fraction), ethylene glycol and 1-2.5% of water (volume fraction), wherein the oxidation voltage is 60V, the time is 10-20min, and a titanium dioxide array is formed on the surface of the ultrathin titanium sheet;
B. taking out the ultrathin titanium sheet, placing the ultrathin titanium sheet in deionized water, removing the titanium dioxide array on the surface of the ultrathin titanium sheet through ultrasonic oscillation, and drying;
C. b, taking the ultrathin titanium sheet treated in the step B as an anode and metal platinum as a cathode, carrying out secondary oxidation in the electrolyte in the step A, wherein the oxidation voltage is 20-50V, the oxidation time is 30-45min, and taking out the ultrathin titanium sheet and then cleaning the ultrathin titanium sheet by using deionized water;
D. mixing polyethylene resin, modified ultrathin titanium sheets, propylene-ethylene copolymer, polyvinyl imidazole, micro-nano zinc dioxide and ethylene-vinyl acetate copolymer according to a ratio; and uniformly mixing the prepared materials in a mixer, discharging, and granulating by using an extruder.
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| CN202010204216.5A CN111269480A (en) | 2020-03-21 | 2020-03-21 | Super-strong weather-resistant TPE material applied to insulator umbrella cover and preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265108A (en) * | 2021-05-13 | 2021-08-17 | 萍乡市中源瓷业有限公司 | Rod-shaped suspension type polymerized crystal silicon insulator and preparation method thereof |
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| CN102108146A (en) * | 2010-03-29 | 2011-06-29 | 宁波先锋新材料股份有限公司 | Polyolefin thermoplastic elastomer (TPE) composition and preparation method thereof |
| CN107522999A (en) * | 2017-07-19 | 2017-12-29 | 苏州安鸿泰新材料有限公司 | A kind of uvioresistant halogen-free flame-retardant thermoplastic elastomer TPE material and preparation method thereof |
| CN109575420A (en) * | 2018-12-17 | 2019-04-05 | 特塑（大连）高分子材料有限公司 | A kind of permanent anti-static polyolefin material and preparation method thereof |
| CN109796649A (en) * | 2019-01-22 | 2019-05-24 | 安徽坤和电气有限公司 | A kind of superhigh intensity fiberglass cable bridge rack and preparation method thereof |
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2020
- 2020-03-21 CN CN202010204216.5A patent/CN111269480A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108146A (en) * | 2010-03-29 | 2011-06-29 | 宁波先锋新材料股份有限公司 | Polyolefin thermoplastic elastomer (TPE) composition and preparation method thereof |
| CN107522999A (en) * | 2017-07-19 | 2017-12-29 | 苏州安鸿泰新材料有限公司 | A kind of uvioresistant halogen-free flame-retardant thermoplastic elastomer TPE material and preparation method thereof |
| CN109575420A (en) * | 2018-12-17 | 2019-04-05 | 特塑（大连）高分子材料有限公司 | A kind of permanent anti-static polyolefin material and preparation method thereof |
| CN109796649A (en) * | 2019-01-22 | 2019-05-24 | 安徽坤和电气有限公司 | A kind of superhigh intensity fiberglass cable bridge rack and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265108A (en) * | 2021-05-13 | 2021-08-17 | 萍乡市中源瓷业有限公司 | Rod-shaped suspension type polymerized crystal silicon insulator and preparation method thereof |
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