CN111363309A - Early warning insulating and protective sheath material for reversible thermosensitive color-changing fuse and preparation method and application method thereof - Google Patents
Early warning insulating and protective sheath material for reversible thermosensitive color-changing fuse and preparation method and application method thereof Download PDFInfo
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses an early warning insulating and protective sheath material for a reversible thermosensitive color-changing fuse, which consists of 5-15 parts of epoxy resin, 5-10 parts of cobalt chloride hexahydrate, 1-3 parts of hexamethylenetetramine, 2-5 parts of sodium dodecyl benzene sulfonate, 3-7 parts of diphenylmethane diisocyanate, 2-5 parts of a dispersing agent, 1-5 parts of a vapor phase corrosion inhibitor and 10-15 parts of nano calcium carbonate. The sheath material provided by the invention has a thermal discoloration function, so that a thermal early warning function can be achieved, a patrol inspector is effectively reminded of faults through the change of the color of the sheath, and the hidden danger is quickly eliminated by taking measures in time; meanwhile, the materials of the invention can effectively improve the multiple properties of flame retardant property, corrosion resistance, weather resistance, insulativity and the like of the protective sheath material through interaction.
Description
Technical Field
The invention relates to the field of preparation of insulating color-changing materials, in particular to an early warning insulating protective sleeve material for a reversible thermosensitive color-changing fuse and a preparation method and an application method thereof.
Background
The rubber material is a high polymer material capable of rapidly recovering deformation under large deformation, in recent years, rapid development of the rubber industry puts forward higher requirements on rubber products, the rubber material must develop towards functionalization, refinement and diversification, the traditional single rubber material cannot completely meet the rapidly-developed use requirements, and the technical problem can be solved by selecting and mixing multiple materials.
The insulating protective cover is made of high polymer materials and silicon rubber materials with strong ageing resistance, has the advantages of good toughness, strong hydrophobicity, ultraviolet resistance and the like, is suitable for insulating safety protective equipment of terminal ends of power equipment, distribution transformers, lightning rods, outdoor switches and the like, and can effectively prevent accidents such as power failure, power equipment damage, electric shock and the like caused by interphase paragraphs or grounding of various exposed terminals due to various reasons, thereby ensuring the safe operation of the power equipment;
the common protective sleeve is made of silicone rubber which can be phase-separated by mixing common silicone rubber. And forming by an HTV solid high-temperature vulcanization process. Although it has certain hydrophobic property; the corrosion of acid rain to the joint can be eliminated; the fault caused by foreign matter collision can be avoided. However, the electrical contacts of the common insulating sheath are not easy to dissipate heat, faults of the electrical contacts are difficult to find, the troubleshooting is time-consuming and labor-consuming, and the instrument detection and troubleshooting are inconvenient.
Therefore, the early-warning insulating and protective sheath material for the reversible thermosensitive color-changing fuse and the preparation method thereof, which can be used for early warning and have good insulating effect, are technical problems to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides a fuse protector material capable of changing color at a higher temperature, so as to achieve an early warning function and improve an insulation effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
the early warning insulating protective sleeve material for the reversible thermosensitive color-changing fuse comprises the following raw materials in parts by weight: 5-15 parts of epoxy resin, 5-10 parts of cobalt chloride hexahydrate, 1-3 parts of hexamethylenetetramine, 2-5 parts of sodium dodecyl benzene sulfonate, 3-7 parts of diphenylmethane diisocyanate, 2-5 parts of a dispersing agent, 1-5 parts of a gas phase corrosion inhibitor and 10-15 parts of nano calcium carbonate.
The invention has the beneficial effects that: the sheath material provided by the invention has a thermal discoloration function, so that a thermal early warning function can be achieved, a patrol inspector is effectively reminded of faults through the change of the color of the sheath, and the hidden danger is quickly eliminated by taking measures in time; meanwhile, the materials of the invention can effectively improve the multiple properties of flame retardant property, corrosion resistance, weather resistance, insulativity and the like of the protective sheath material through interaction.
Further, the dispersant is one or a mixture of more of hexenyl bis stearamide, barium stearate, zinc stearate and calcium stearate.
Adopt above-mentioned further beneficial effect to lie in: the dispersing agent adopted by the invention can increase the adhesive force and the dispersing force of the color-changing material, can enable the product to change color more obviously and change color uniformly in actual use, and has the effect of preventing falling off.
Further, the vapor phase inhibitor is one or a mixture of more of cyclohexylamine, divinyl triamine, dicyclohexylamine nitrite, alginic acid and benzotriazole.
Adopt above-mentioned further beneficial effect to lie in: the gas phase corrosion inhibitor adopted by the invention can replace water molecules on the metal surface to carry out physical, chemical or both adsorption so as to form an adsorption layer.
Further, the raw materials also comprise 10-20 parts of methyl vinyl silicone rubber.
The invention also provides a preparation method of the early warning insulating and protective sheath material for the reversible thermosensitive color-changing fuse, which is characterized by comprising the following steps of:
(1) weighing the raw materials in parts by weight;
(2) putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring and mixing uniformly, standing for 2-5h, adding sodium dodecyl benzene sulfonate, stirring uniformly, dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 60-80 ℃, and keeping constant temperature for reacting for 2-4h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase corrosion inhibitor into ethanol, performing ultrasonic dispersion for 15-30 minutes, adding nano calcium carbonate, and continuing ultrasonic dispersion for 15-30 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, drying the mixture in an oven with the temperature of 120-160 ℃ for 10-18h, then putting the mixture in a ball mill for ball milling, and vulcanizing the mixture to obtain the early-warning insulating and protective sheath material for the reversible thermosensitive color-changing fuse.
Compared with the prior art, the invention has the beneficial effects that: the sheath material provided by the invention has a thermal discoloration function, so that a thermal early warning function can be achieved, a patrol inspector is effectively reminded of faults through the change of the color of the sheath, and the hidden danger is quickly eliminated by taking measures in time; the preparation method is simple in preparation process, wide in application range, capable of reducing potential risks and excellent in industrialization prospect.
Further, the stirring speed in the step (2) is 500-800r/min, and the stirring time is 20-40 min.
Adopt above-mentioned further beneficial effect to lie in: the mixing degree of the raw materials can be improved at the stirring speed of the invention, so that the quality of the protective sleeve material is improved.
Further, the ultrasonic power in the step (3) is 10-25 kHz.
Further, the ball milling in the step (4) further comprises adding methyl vinyl silicone rubber for ball milling.
Furthermore, the rotating speed of the ball mill cylinder is 20-50r/min, and the ball milling time is 24-36 h.
Adopt above-mentioned further beneficial effect to lie in: according to the invention, the methyl vinyl silicone rubber is added while the ball milling is carried out, so that the insulation effect and the color reversible effect of the protective sleeve material can be improved.
The invention also provides an application method of the early warning insulating and protective sheath material for the reversible thermosensitive color-changing fuse, which comprises the following steps: uniformly mixing the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse and ethanol according to the mass ratio of 1: 0.2-0.5, injecting into a mold, and then standing for 20-40 min.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The preparation method of the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse comprises the following steps:
(1) 5kg of epoxy resin, 10kg of cobalt chloride hexahydrate, 1kg of hexamethylenetetramine, 5kg of sodium dodecyl benzene sulfonate, 3kg of diphenylmethane diisocyanate, 2kg of hexenyl bis stearamide, 3kg of barium stearate, 1kg of cyclohexylamine, 1kg of diethylenetriamine, 3kg of dicyclohexylamine nitrite and 15kg of nano calcium carbonate;
(2) putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring for 20min at the speed of 500r/min, standing for 5h, adding sodium dodecyl benzene sulfonate, continuously stirring for 40min, then dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 80 ℃, and keeping constant temperature for reaction for 2h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase inhibitor into ethanol, performing ultrasonic dispersion for 15 minutes at 25kHz, adding nano calcium carbonate, and continuing ultrasonic dispersion for 30 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, drying the mixture in a 160 ℃ oven for 10 hours, then putting the mixture in a ball mill for ball milling at 50r/min for 24 hours, and vulcanizing the mixture to obtain the early warning insulating and protective sheath material of the reversible thermosensitive color-changing fuse.
Example 2
The preparation method of the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse comprises the following steps:
(1) 15kg of epoxy resin, 5kg of cobalt chloride hexahydrate, 3kg of hexamethylenetetramine, 2kg of sodium dodecyl benzene sulfonate, 7kg of diphenylmethane diisocyanate, 1kg of calcium stearate, 1kg of benzotriazole and 10kg of nano calcium carbonate;
(2) putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring for 40min at the speed of 800r/min, standing for 2h, adding sodium dodecyl benzene sulfonate, continuously stirring for 20min, then dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 60 ℃, and keeping constant temperature for reaction for 4h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase inhibitor into ethanol, performing ultrasonic dispersion for 30 minutes at 10kHz, adding nano calcium carbonate, and continuing ultrasonic dispersion for 15 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, putting the mixture into a 120 ℃ oven for drying for 18h, then putting the mixture into a ball mill for ball milling for 24h at the speed of 20r/min, and vulcanizing the mixture to obtain the early warning insulating and protective sheath material of the reversible thermosensitive color-changing fuse.
Example 3
The preparation method of the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse comprises the following steps:
(1) 10kg of epoxy resin, 7kg of cobalt chloride hexahydrate, 2kg of hexamethylenetetramine, 4kg of sodium dodecyl benzene sulfonate, 5kg of diphenylmethane diisocyanate, 2kg of hexenyl bis stearamide, 2kg of zinc stearate, 2kg of dicyclohexylamine nitrite, 2kg of alginic acid and 12kg of nano calcium carbonate;
(2) putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring for 30min at the speed of 600r/min, standing for 3h, adding sodium dodecyl benzene sulfonate, continuously stirring for 30min, then dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 70 ℃, keeping constant temperature, and reacting for 3h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase corrosion inhibitor into ethanol, performing ultrasonic dispersion for 25 minutes at 15kHz, adding nano calcium carbonate, and continuing ultrasonic dispersion for 20 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, putting the mixture into a drying oven at 140 ℃ for drying for 12 hours, then putting the mixture into a ball mill for ball milling for 28 hours at 35r/min, and vulcanizing the mixture to obtain the early warning insulating protective sleeve material for the reversible thermosensitive color-changing fuse.
Example 4
The preparation method of the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse comprises the following steps:
(1) 12kg of epoxy resin, 8kg of cobalt chloride hexahydrate, 1kg of hexamethylenetetramine, 2kg of sodium dodecyl benzene sulfonate, 6kg of diphenylmethane diisocyanate, 3kg of calcium stearate, 3kg of alginic acid, 15kg of nano calcium carbonate and 20kg of methyl vinyl silicone rubber;
(2) putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring for 20min at the speed of 700r/min, standing for 4h, adding sodium dodecyl benzene sulfonate, continuously stirring for 20min, then dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 65 ℃, and keeping constant temperature for reaction for 4h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase corrosion inhibitor into ethanol, performing ultrasonic dispersion for 20 minutes at 20kHz, adding nano calcium carbonate, and continuing the ultrasonic dispersion for 20 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, putting the mixture into a 150 ℃ oven for drying for 15h, then putting the mixture into a ball mill, mixing with methyl vinyl silicone rubber, ball-milling for 30h at 20r/min, and vulcanizing the mixture to obtain the early warning insulating and protective sheath material for the reversible thermosensitive color-changing fuse.
Example 5
The preparation method of the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse comprises the following steps:
(1) 6kg of epoxy resin, 6kg of cobalt chloride hexahydrate, 3kg of hexamethylenetetramine, 5kg of sodium dodecyl benzene sulfonate, 6kg of diphenylmethane diisocyanate, 3kg of hexenyl bis stearamide, 3kg of divinyl triamine, 13kg of nano calcium carbonate and 10kg of methyl vinyl silicone rubber;
(2) putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring for 30min at the speed of 600r/min, standing for 3h, adding sodium dodecyl benzene sulfonate, continuously stirring for 30min, then dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 60 ℃, keeping constant temperature, and reacting for 3h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase inhibitor into ethanol, performing ultrasonic dispersion for 30 minutes at 15kHz, adding nano calcium carbonate, and continuing ultrasonic dispersion for 30 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, putting the mixture into a 160 ℃ oven for drying for 16h, then putting the mixture into a ball mill, mixing with methyl vinyl silicone rubber, ball-milling for 36h at 30r/min, and vulcanizing the mixture to obtain the early warning insulating and protective sheath material for the reversible thermosensitive color-changing fuse.
Example 6
The preparation method of the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse comprises the following steps:
(1) 8kg of epoxy resin, 7kg of cobalt chloride hexahydrate, 2kg of hexamethylenetetramine, 4kg of sodium dodecyl benzene sulfonate, 6kg of diphenylmethane diisocyanate, 3kg of hexenyl bis stearamide, 3kg of divinyl triamine, 14kg of nano calcium carbonate and 15kg of methyl vinyl silicone rubber;
(2) putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring for 30min at the speed of 600r/min, standing for 3h, adding sodium dodecyl benzene sulfonate, continuously stirring for 30min, then dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 60 ℃, keeping constant temperature, and reacting for 3h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase inhibitor into ethanol, performing ultrasonic dispersion for 30 minutes at 15kHz, adding nano calcium carbonate, and continuing ultrasonic dispersion for 30 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, putting the mixture into a 160 ℃ oven for drying for 16h, then putting the mixture into a ball mill, mixing with methyl vinyl silicone rubber, ball-milling for 36h at 30r/min, and vulcanizing the mixture to obtain the early warning insulating and protective sheath material for the reversible thermosensitive color-changing fuse.
Example 7
The preparation method of the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse comprises the following steps:
(1) 10kg of epoxy resin, 8kg of cobalt chloride hexahydrate, 3kg of hexamethylenetetramine, 2kg of sodium dodecyl benzene sulfonate, 6kg of diphenylmethane diisocyanate, 2kg of calcium stearate, 3kg of alginic acid, 12kg of nano calcium carbonate and 12kg of methyl vinyl silicone rubber
(2) Putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring for 40min at the speed of 800r/min, standing for 2h, adding sodium dodecyl benzene sulfonate, continuously stirring for 20min, then dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 60 ℃, and keeping constant temperature for reaction for 4h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase inhibitor into ethanol, performing ultrasonic dispersion for 30 minutes at 10kHz, adding nano calcium carbonate, and continuing ultrasonic dispersion for 15 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, putting the mixture into a 120 ℃ oven for drying for 18h, then putting the mixture into a ball mill for ball milling for 24h at the speed of 20r/min, and vulcanizing the mixture to obtain the early warning insulating and protective sheath material of the reversible thermosensitive color-changing fuse.
Test example 1
The early warning insulating and protecting sheath material of the reversible thermosensitive color-changing fuse and ethanol prepared in the embodiment 1-7 are uniformly mixed according to the mass ratio of 1: 0.2, injected into a mould and then kept stand for 40 min. And (3) carrying out comprehensive performance test on the prepared early warning insulating protective sleeve of the reversible thermochromic fuse, wherein the test result is shown in Table 1, and the test standard is carried out according to GB/T531-2008 and GB/T528-2009.
Table 1 examples 1-7 protective cover comprehensive test performance
Test example 2
The protective covers obtained from examples 1 to 7 above were subjected to a weather resistance test according to GB/T16585-1996 and GB/T7762-2003, wherein the fluorescent lamp was an ultraviolet lamp with a UV-A type radiation energy peak of 340nm, the UV exposure temperature was 50 ℃ and the exposure time was 7 days;
the concentration of the ozone in the experiment is 50pphm, the test temperature is 50 ℃, the relative humidity of the ozonized air is 65%, the 20% elongation is adopted for the experiment, and the exposure time is 7 d. The results of the experiment are shown in Table 2
Table 2 examples 1-7 protective cover weather resistance test results
Test example 3 measurement of discoloration temperature
The protective cover prepared in the embodiment 1-7 is placed in a watch glass, the watch glass is placed in a constant-temperature water bath kettle, the water bath kettle is arranged to be heated from 25 ℃ at the heating rate of 2 ℃/5min, the color change condition of the fuse color-changing early-warning insulating anti-skid cover is observed while the temperature is raised, when the color of the fuse color-changing early-warning insulating anti-skid cover changes, the temperature of the fuse color-changing early-warning insulating anti-skid cover is tested by an infrared thermometer, and the color-changing temperature at the moment is recorded. The results are shown in Table 3
Table 3 examples 1-7 shield discoloration temperature test results
The examples 1-7 show that the fuse discoloration early-warning insulating antiskid cover prepared by the invention has excellent physical properties and excellent insulating effect, and meanwhile, the fuse discoloration early-warning insulating antiskid cover produced by the invention can reversibly change color, so that the early-warning effect is realized.
Claims (10)
1. The early warning insulating protective sleeve material for the reversible thermosensitive color-changing fuse is characterized by comprising the following raw materials in parts by weight: 5-15 parts of epoxy resin, 5-10 parts of cobalt chloride hexahydrate, 1-3 parts of hexamethylenetetramine, 2-5 parts of sodium dodecyl benzene sulfonate, 3-7 parts of diphenylmethane diisocyanate, 2-5 parts of a dispersing agent, 1-5 parts of a gas phase corrosion inhibitor and 10-15 parts of nano calcium carbonate.
2. The early warning insulating and protective sheath material for the reversible thermochromic fuse as claimed in claim 1, wherein the dispersant is one or a mixture of more of hexenyl bis stearamide, barium stearate, zinc stearate and calcium stearate.
3. The early warning insulating and protective sheath material for the reversible thermochromic fuse according to claim 1, wherein the vapor phase corrosion inhibitor is one or a mixture of cyclohexylamine, divinyl triamine, dicyclohexylamine nitrite, alginic acid and benzotriazole.
4. The early warning insulating and protective sheath material for the reversible thermochromic fuse as claimed in claim 1, further comprising 10-20 parts of methyl vinyl silicone rubber.
5. A preparation method of an early warning insulating protective sleeve material of a reversible thermosensitive color-changing fuse is characterized by comprising the following steps:
(1) weighing the raw materials of the early warning insulating protective sleeve of the reversible thermosensitive color-changing fuse according to any one of claims 1 to 4;
(2) putting weighed cobalt chloride hexahydrate and hexamethylenetetramine into a reaction kettle, adding water to dissolve, stirring and mixing uniformly, standing for 2-5h, adding sodium dodecyl benzene sulfonate, stirring uniformly, dropwise adding diphenylmethane diisocyanate into the reaction kettle, heating to 60-80 ℃, and keeping constant temperature for reacting for 2-4h to obtain a base material A;
(3) adding epoxy resin, a dispersing agent and a vapor phase corrosion inhibitor into ethanol, performing ultrasonic dispersion for 15-30 minutes, adding nano calcium carbonate, and continuing ultrasonic dispersion for 15-30 minutes to obtain a base material B;
(4) and mixing and uniformly stirring the base material A and the base material B, drying the mixture in an oven with the temperature of 120-160 ℃ for 10-18h, then putting the mixture in a ball mill for ball milling, and vulcanizing the mixture to obtain the early-warning insulating and protective sheath material for the reversible thermosensitive color-changing fuse.
6. The method for preparing the early warning insulating and protecting jacket material for the reversible thermochromic fuse as claimed in claim 5, wherein the stirring speed in step (2) is 500-800r/min, and the stirring time is 20-40 min.
7. The preparation method of the early warning insulating and protective sheath material for the reversible thermochromic fuse as claimed in claim 5, wherein the ultrasonic power in the step (3) is 10-25 kHz.
8. The preparation method of the early warning insulating and protective sheath material for the reversible thermochromic fuse as claimed in claim 5, wherein the step (4) of ball milling further comprises adding methyl vinyl silicone rubber for ball milling.
9. The preparation method of the early warning insulating and protective sheathing material for the reversible thermochromic fuse as claimed in claim 5 or 8, wherein the rotation speed of the ball mill cylinder in the step (4) is 20-50r/min, and the ball milling time is 24-36 h.
10. The application method of the early warning insulating and protecting sheathing material of the reversible thermochromic fuse as claimed in any one of claims 1 to 4, characterized by comprising the steps of: mixing the early warning insulating protective sleeve material of the reversible thermosensitive color-changing fuse and ethanol according to the mass ratio of 1: 0.2-0.5, injecting into a mold, and then standing for 20-40 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010262800.6A CN111363309A (en) | 2020-04-02 | 2020-04-02 | Early warning insulating and protective sheath material for reversible thermosensitive color-changing fuse and preparation method and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010262800.6A CN111363309A (en) | 2020-04-02 | 2020-04-02 | Early warning insulating and protective sheath material for reversible thermosensitive color-changing fuse and preparation method and application method thereof |
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| CN111363309A true CN111363309A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010262800.6A Withdrawn CN111363309A (en) | 2020-04-02 | 2020-04-02 | Early warning insulating and protective sheath material for reversible thermosensitive color-changing fuse and preparation method and application method thereof |
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| CN (1) | CN111363309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289662A (en) * | 2020-11-17 | 2021-01-29 | 安徽伊法拉电力科技有限公司 | Novel reversible thermosensitive ABB fuse early warning insulating sheath material and preparation method thereof |
| CN112358719A (en) * | 2020-11-17 | 2021-02-12 | 安徽伊法拉电力科技有限公司 | Reversible thermosensitive high-voltage incoming early-warning insulating protective sleeve material and preparation method thereof |
-
2020
- 2020-04-02 CN CN202010262800.6A patent/CN111363309A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289662A (en) * | 2020-11-17 | 2021-01-29 | 安徽伊法拉电力科技有限公司 | Novel reversible thermosensitive ABB fuse early warning insulating sheath material and preparation method thereof |
| CN112358719A (en) * | 2020-11-17 | 2021-02-12 | 安徽伊法拉电力科技有限公司 | Reversible thermosensitive high-voltage incoming early-warning insulating protective sleeve material and preparation method thereof |
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Application publication date: 20200703 |