CN110845851A - Liquid conductive adhesive for power cable accessories and preparation method thereof - Google Patents
Liquid conductive adhesive for power cable accessories and preparation method thereof Download PDFInfo
- Publication number
- CN110845851A CN110845851A CN201911158481.8A CN201911158481A CN110845851A CN 110845851 A CN110845851 A CN 110845851A CN 201911158481 A CN201911158481 A CN 201911158481A CN 110845851 A CN110845851 A CN 110845851A
- Authority
- CN
- China
- Prior art keywords
- parts
- silicone oil
- conductive adhesive
- power cable
- liquid conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- 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
- C08K2201/001—Conductive additives
-
- 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
-
- 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
Abstract
The invention belongs to the technical field of silicone rubber, and particularly relates to a liquid conductive adhesive for power cable accessories and a preparation method thereof. The liquid conductive adhesive for the power cable accessory is prepared from the following raw materials in parts by weight: 50-70 parts of vinyl silicone oil; 0-5 parts of polyvinyl silicone oil, which is not zero; 0-10 parts of hydrogen-containing silicone oil, which is not zero; 10-30 parts of fumed silica; 10-30 parts of conductive carbon black; 2-6 parts of hexamethyldisilazane; 4-10 parts of methyl hexadecyl dimethoxysilane; 0-500 ppm of inhibitor; 0-15 ppm of platinum catalyst; 0.5-3 parts of distilled water. The liquid conductive adhesive prepared by the invention has good mechanical property, good conductivity, low viscosity and convenient processing.
Description
Technical Field
The invention belongs to the technical field of silicone rubber, and particularly relates to a liquid conductive adhesive for power cable accessories and a preparation method thereof.
Background
Silicone rubber materials are widely used in the field of power cables due to their excellent high temperature resistance. In the field of power cables, power cable accessories are an important component, and the power cable accessories can be divided into cable terminals and cable intermediate connectors, wherein the cable terminals are mainly used for connecting cables with overhead lines, buses or switchgear, and the cable intermediate connectors are mainly used for connecting two cables. And a horn-shaped silicone rubber finished product with an opening part at the end part of the cable terminal and/or the cable intermediate joint is generally used for achieving the effects of homogenizing an electric field, reducing corona and reducing cable damage.
The installation method of the silicon rubber finished product in the power cable on the market at present is to inject and cure the silicon rubber in an expanding mode so as to reach the size before expanding. The silicone rubber finished product needs to have a conductive effect, so people introduce conductive carbon black into the silicone rubber, for example, Chinese patent CN109735111A discloses a high-conductivity viscous addition type conductive silicone rubber and a preparation method thereof, and specifically discloses that the high-conductivity viscous addition type conductive silicone rubber comprises vinyl silicone oil, a platinum catalyst, hydrogen-containing silicone oil, an inhibitor, conductive carbon black, conductive carbon fibers, a viscosity enhancer, a dispersant, fumed silica and a volatile solvent, and the obtained conductive silicone rubber has good conductivity and mechanical properties. Further, as shown in chinese patent CN107141809A, specifically disclosed are methyl vinyl silicone rubber, acetylene black, acidic powder, nano powder, internal mold release agent and silane coupling agent, and the obtained conductive silicone rubber exhibits conductivity, but its viscosity cannot be known. In addition to the production of silicone rubber having viscosity, the prior art uses a large amount of conductive carbon black in order to ensure the conductivity of silicone rubber, but the addition of a large amount of conductive carbon black tends to increase the viscosity of silicone rubber, so that the injection step and the like during molding take a large amount of time, and the production and processing are not utilized.
Disclosure of Invention
The invention aims to provide the liquid conductive adhesive for the power cable accessories and the preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the liquid conductive adhesive for the power cable accessories is prepared from the following raw materials in parts by weight:
50-70 parts of vinyl silicone oil;
0-5 parts of polyvinyl silicone oil, which is not zero;
0-10 parts of hydrogen-containing silicone oil, which is not zero;
10-30 parts of fumed silica;
10-30 parts of conductive carbon black;
2-6 parts of hexamethyldisilazane;
4-10 parts of methyl hexadecyl dimethoxysilane;
0-500 ppm of inhibitor;
0-15 ppm of platinum catalyst;
0.5-3 parts of distilled water.
Further, the health food is prepared from the following raw materials in parts by weight:
65 parts of vinyl silicone oil;
2 parts of polyvinyl silicone oil;
4 parts of hydrogen-containing silicone oil;
15 parts of fumed silica;
15 parts of conductive carbon black;
4 parts of hexamethyldisilazane;
6 parts of methyl hexadecyl dimethoxysilane;
300ppm of inhibitor;
7.5ppm of platinum catalyst;
and 2 parts of distilled water.
According to the invention, a centralized crosslinking system is formed through the reaction of vinyl silicone oil, polyvinyl silicone oil and hydrogen-containing silicone oil, the tensile property and the tear resistance of the liquid conductive adhesive can be obviously improved by adding fumed silica into the crosslinking system, the liquid conductive adhesive has conductivity by adding conductive carbon black, in a performance test, the viscosity of the liquid conductive adhesive can be obviously reduced after adding methyl hexadecyl dimethoxy silane, and the assumption is that the methyl hexadecyl dimethoxy silane has a hydrophobic flexible long chain, so that the wettability between the silicone rubber and the conductive carbon black is improved.
Further, the vinyl silicone oil is terminal vinyl polysiloxane with a vinyl content of 0.1-0.5 mol%.
Further, the polyvinyl silicone oil is polysiloxane with a vinyl content of 2-10 mol%.
The vinyl silicone oil and the polyvinyl silicone oil are both end vinyl polysiloxane, and are easy to react with hydrogen-containing silicone oil due to small steric hindrance, so that a crosslinking system with a soft main chain is formed, and the viscosity of the liquid conductive adhesive is further reduced.
Further, the hydrogen-containing silicone oil is terminal hydrogen-containing or side hydrogen-containing silicone oil with the hydrogen content of 0.1-1.0 mol%.
Further, the specific surface area of the fumed silica is 150-400 m2/g。
Further, the specific surface area of the conductive carbon black is 10-100 m2/g。
Further, the inhibitor is one or more of 3-methyl-1-butyn-3-ol, 3-methyl-1-pentyn-3-ol, 3, 5-dimethyl-1-hexyn-3-ol, 1-ethynyl-1-cyclohexanol and tetramethyltetravinylcyclotetrasiloxane.
The invention provides a preparation method of the liquid conductive adhesive for the power cable accessories, which is characterized by comprising the following steps:
s1) preparation of base gum a: putting methyl hexadecyl dimethoxy silane and 1/4 formula amount vinyl silicone oil into an internal mixer to be stirred for 3-7 min; during stirring, uniformly dividing 5 parts of conductive carbon black, and sequentially adding the conductive carbon black into an internal mixer, wherein the materials in the internal mixer are determined to be agglomerated before each part of the conductive carbon black is added; after all the conductive carbon black is added, stirring for 4-6 h at the temperature of not higher than 90 ℃; heating to 150 ℃, stirring for 2-2.5 h, and cooling to obtain base rubber A;
s2) preparation of base gum B: hexamethyldisilazane, distilled water and 1/4 formula amount vinyl silicone oil are put into a reaction kettle and stirred uniformly; during stirring, uniformly dividing 6 parts of fumed silica, and sequentially adding into a reaction kettle, and confirming that materials in the reaction kettle are agglomerated before each part is added; after all the fumed silica is added, stirring for 1-3 h at the temperature of not higher than 90 ℃; heating to 150 ℃, stirring for 2-2.5 h, and cooling to obtain base rubber B;
s3) preparation of A glue: mixing and stirring 1/2 amounts of base rubber A in the step S1, 1/2 amounts of base rubber B in the step S2, 1/4 amounts of vinyl silicone oil, 1/2 amounts of polyvinyl silicone oil and platinum catalyst, and performing pressure filtration to obtain rubber A;
s4) preparation of B glue: mixing and stirring the base glue A obtained in the step S1 with the residual 1/2 amount, the base glue B obtained in the step S2 with the residual 1/2 amount, the vinyl silicone oil obtained in the residual 1/4 formula amount, the polyvinyl silicone oil obtained in the residual 1/2 formula amount, the hydrogen-containing silicone oil and the inhibitor, and performing pressure filtration to obtain glue B;
s5) preparing liquid conductive adhesive: and mixing the glue A and the glue B according to the mass ratio of 1:1 to obtain the liquid conductive adhesive.
The invention mixes the vinyl silicone oil with the base glue A, the base glue B, A and the glue B in batches, and can improve the dispersibility of other raw materials; and then the polyvinyl silicon oil is added into the glue A and the glue B in batches, so that a crosslinking system can be well established, and a centralized crosslinking structure can be formed after the glue A and the glue B are mixed conveniently.
The invention also provides application of the liquid conductive adhesive for the power cable accessories in a power cable.
Compared with the prior art, the invention has the following beneficial effects:
(1) the liquid conductive adhesive prepared by the invention has good mechanical property, good stretchability and tear resistance, and is suitable for power cable accessories.
(2) The liquid conductive adhesive prepared by the invention has good conductivity, and the volume resistivity reaches 45%.
(3) The liquid conductive adhesive prepared by the invention has low viscosity, good fluidity and strong processability.
(4) The preparation method of the liquid conductive adhesive can improve the dispersibility of the fumed silica and the conductive carbon black so as to prevent the fumed silica and the conductive carbon black from agglomerating.
Detailed Description
The present invention will be described in further detail with reference to the following examples. It should not be understood that the scope of the above-described subject matter of the present invention is limited to the following examples.
The vinyl silicone oil, the polyvinyl silicone oil, the hydrogen-containing silicone oil, the fumed silica, the conductive carbon black and the platinum catalyst (Kanstet platinum catalyst) are all purchased from chemical group of chemical industries, Inc. in Xinan of Zhejiang, and the other reagents are all common reagents and can be purchased from conventional reagent production and sales companies.
Example 1 liquid conductive adhesive for Power Cable Accessories
The health-care food is prepared from the following raw materials in parts by mass: 50 parts of vinyl silicone oil (terminal vinyl polysiloxane having a vinyl group content of 0.3 mol%), 2 parts of polyvinyl silicone oil (polysiloxane having a vinyl group content of 3 mol%), 2 parts of hydrogen-containing silicone oil (side hydrogen-containing silicone oil having a hydrogen content of 0.3 mol%), and a specific surface area of 200m210 parts of fumed silica/g, and the specific surface area of the fumed silica is 30m215 parts of conductive carbon black per gram, 5 parts of hexamethyldisilazane, 5 parts of methylhexadecyl dimethoxysilane, 200ppm of an inhibitor (3-methyl-1-butyn-3-ol), 5ppm of a platinum catalyst and 2 parts of distilled water.
The preparation method of the liquid conductive adhesive for the power cable accessories comprises the following steps:
s1) preparation of base gum a: adding methyl hexadecyl dimethoxy silane and 1/4 formula amount vinyl silicone oil into an internal mixer to be stirred for 5 min; during stirring, uniformly dividing 5 parts of conductive carbon black, and sequentially adding the conductive carbon black into an internal mixer, wherein the materials in the internal mixer are determined to be agglomerated before each part of the conductive carbon black is added; after all the conductive carbon black is added, stirring for 5 hours at the temperature of not higher than 90 ℃; heating to 150 ℃, stirring for 2h, and cooling to obtain base adhesive A;
s2) preparation of base gum B: hexamethyldisilazane, distilled water and 1/4 formula amount vinyl silicone oil are put into a reaction kettle and stirred uniformly; during stirring, uniformly dividing 6 parts of fumed silica, and sequentially adding into a reaction kettle, and confirming that materials in the reaction kettle are agglomerated before each part is added; after all the fumed silica is added, stirring for 2 hours at the temperature of not higher than 90 ℃; heating to 150 ℃, stirring for 2h, and cooling to obtain base rubber B;
s3) preparation of A glue: mixing and stirring 1/2 amounts of base rubber A in the step S1, 1/2 amounts of base rubber B in the step S2, 1/4 amounts of vinyl silicone oil, 1/2 amounts of polyvinyl silicone oil and platinum catalyst, and performing pressure filtration to obtain rubber A;
s4) preparation of B glue: mixing and stirring the base glue A obtained in the step S1 with the residual 1/2 amount, the base glue B obtained in the step S2 with the residual 1/2 amount, the vinyl silicone oil obtained in the residual 1/4 formula amount, the polyvinyl silicone oil obtained in the residual 1/2 formula amount, the hydrogen-containing silicone oil and the inhibitor, and performing pressure filtration to obtain glue B;
s5) preparing liquid conductive adhesive: and mixing the glue A and the glue B according to the mass ratio of 1:1 to obtain the liquid conductive adhesive.
Example 2 liquid conductive adhesive for Power Cable Accessories
The health-care food is prepared from the following raw materials in parts by mass: 60 parts of vinyl silicone oil (terminal vinyl polysiloxane having a vinyl group content of 0.3 mol%), 2 parts of polyvinyl silicone oil (polysiloxane having a vinyl group content of 5 mol%), 3 parts of hydrogen-containing silicone oil (side hydrogen-containing silicone oil having a hydrogen content of 0.5 mol%), and a specific surface area of 200m215 parts of fumed silica/g, with specific surface area of 30m215 parts of conductive carbon black per gram, 6 parts of hexamethyldisilazane, 6 parts of methylhexadecyl dimethoxysilane, 200ppm of an inhibitor (3-methyl-1-pentyn-3-ol), 5ppm of a platinum catalyst and 2 parts of distilled water.
The preparation method of the liquid conductive adhesive for the power cable accessory of the embodiment is the same as that of the embodiment 1.
Example 3 liquid conductive adhesive for Power Cable Accessories
The health-care food is prepared from the following raw materials in parts by mass: vinyl Silicone oil (terminal vinyl polysiloxane having a vinyl group content of 0.35 mol%) 603.5 parts of polyvinyl silicone oil (polysiloxane with 6mol percent of vinyl content), 5 parts of hydrogen-containing silicone oil (terminal hydrogen-containing silicone oil with 0.6mol percent of hydrogen content) and 300m of specific surface area220 parts of fumed silica/g, and the specific surface area of the fumed silica is 30m215 parts of conductive carbon black per gram, 5 parts of hexamethyldisilazane, 8 parts of methylhexadecyl dimethoxysilane, 300ppm of inhibitor (3-methyl-1-butyn-3-ol, 3-methyl-1-pentyn-3-ol), 6ppm of platinum catalyst and 2 parts of distilled water.
The preparation method of the liquid conductive adhesive for the power cable accessory of the embodiment is the same as that of the embodiment 1.
Example 4 liquid conductive adhesive for Power Cable Accessories
The health-care food is prepared from the following raw materials in parts by mass: 60 parts of vinyl silicone oil (terminal vinyl polysiloxane having a vinyl group content of 0.3 mol%), 3 parts of polyvinyl silicone oil (polysiloxane having a vinyl group content of 5 mol%), 3 parts of hydrogen-containing silicone oil (terminal hydrogen-containing silicone oil having a hydrogen content of 0.55 mol%), and a specific surface area of 280m215 parts of fumed silica/g, and the specific surface area of the fumed silica is 45m215 parts of conductive carbon black per gram, 5 parts of hexamethyldisilazane, 8 parts of methylhexadecyl dimethoxysilane, 200ppm of an inhibitor (3-methyl-1-pentyn-3-ol, 3, 5-dimethyl-1-hexyn-3-ol), 7.5ppm of a platinum catalyst and 2 parts of distilled water.
The preparation method of the liquid conductive adhesive for the power cable accessory of the embodiment is the same as that of the embodiment 1.
EXAMPLE 5 liquid conductive adhesive for Power Cable Accessories
The health-care food is prepared from the following raw materials in parts by mass: 65 parts of vinyl silicone oil (terminal vinyl polysiloxane having a vinyl group content of 0.35 mol%), 2 parts of polyvinyl silicone oil (polysiloxane having a vinyl group content of 6 mol%), 4 parts of hydrogen-containing silicone oil (side hydrogen-containing silicone oil having a hydrogen content of 0.6 mol%), and a specific surface area of 280m215 parts of fumed silica/g, with specific surface area of 50m215 parts of conductive carbon black per gram, 6 parts of hexamethyldisilazane, 6 parts of methylhexadecyl dimethoxysilane, 300ppm of an inhibitor (1-ethynyl-1-cyclohexanol), 7.5ppm of a platinum catalyst and 2 parts of distilled water.
The preparation method of the liquid conductive adhesive for the power cable accessory of the embodiment is the same as that of the embodiment 1.
Comparative example 1 liquid conductive adhesive for Power Cable Accessories
Similar to example 5, except that: the vinyl silicone oil (terminal vinyl polysiloxane having a vinyl group content of 0.35 mol%) was replaced with a vinyl silicone oil (side vinyl polysiloxane having a vinyl group content of 0.35 mol%), and the other parameters were the same as in example 5.
Comparative example 2 liquid conductive adhesive for Power Cable Accessories
Similar to example 5, except that: the polyvinyl silicone oil (terminal vinyl polysiloxane having a vinyl group content of 6 mol%) was increased to 67 parts without adding polyvinyl silicone oil (terminal vinyl polysiloxane having a vinyl group content of 0.35 mol%), and the other parameters were the same as in example 5.
Comparative example 3 liquid conductive adhesive for Power Cable Accessories
Similar to example 5, except that: methylhexadecyldimethoxysilane was not added, and the other parameters were the same as in example 5.
Comparative example 4 liquid conductive adhesive for Power Cable Accessories
Similar to example 5, except that: 12 parts of methylhexadecyl dimethoxysilane, the other parameters being the same as in example 5.
Test one, Performance test
1.1 test materials: the liquid conductive adhesive for power cable accessories prepared in examples 1 to 5 and comparative examples 1 to 5.
1.2 test methods: the viscosity of the test material was tested with reference to GB/T2794-.
1.3 test results
Table 1 results of performance testing
As can be seen from Table 1, the liquid conductive adhesives prepared in examples 1-5 have better performance, and example 5 is the best embodiment of the present invention. Compared with the embodiment 5, the larger influence of the second-stage tensile strength, the second-stage elongation, the second-stage tearing strength and the second-stage hardness of the liquid conductive adhesive prepared in the comparative example 1 is reduced, the larger influence of the non-added polyvinyl silicone oil on the second-stage tensile strength, the second-stage tearing strength and the second-stage hardness in the comparative example 2 is reduced, which shows that the polyvinyl silicone oil has an accelerating effect on a crosslinking system, the liquid conductive adhesive prepared in the comparative example 3 has the characteristic of high viscosity, the more increase of the addition amount of the methyl hexadecyl dimethoxysilane in the comparative example 4 can reduce the viscosity, and the volume resistivity of the conductive adhesive is obviously increased although the conductive adhesive has good fluidity. The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The liquid conductive adhesive for the power cable accessories is characterized by being prepared from the following raw materials in parts by mass:
50-70 parts of vinyl silicone oil;
0-5 parts of polyvinyl silicone oil, which is not zero;
0-10 parts of hydrogen-containing silicone oil, which is not zero;
10-30 parts of fumed silica;
10-30 parts of conductive carbon black;
2-6 parts of hexamethyldisilazane;
4-10 parts of methyl hexadecyl dimethoxysilane;
0-500 ppm of inhibitor;
0-15 ppm of platinum catalyst;
0.5-3 parts of distilled water.
2. The liquid conductive adhesive for the power cable accessories according to claim 1, which is prepared from the following raw materials in parts by weight:
65 parts of vinyl silicone oil;
2 parts of polyvinyl silicone oil;
4 parts of hydrogen-containing silicone oil;
15 parts of fumed silica;
15 parts of conductive carbon black;
4 parts of hexamethyldisilazane;
6 parts of methyl hexadecyl dimethoxysilane;
300ppm of inhibitor;
7.5ppm of platinum catalyst;
and 2 parts of distilled water.
3. The liquid conductive adhesive for power cable accessories according to claim 1 or 2, wherein the vinyl silicone oil is a terminal vinyl polysiloxane having a vinyl group content of 0.1 to 0.5 mol%.
4. The liquid conductive adhesive for power cable accessories according to claim 1 or 2, wherein the polyvinyl silicone oil is a polysiloxane having a vinyl group content of 2 to 10 mol%.
5. The liquid conductive adhesive for power cable accessories according to claim 1 or 2, wherein the hydrogen-containing silicone oil is terminal hydrogen-containing or side hydrogen-containing silicone oil containing 0.1 to 1.0 mol% of hydrogen.
6. The liquid conductive adhesive for power cable accessories according to claim 1 or 2, wherein the gas is contained in the adhesiveThe specific surface area of the phase-method white carbon black is 150-400 m2/g。
7. The liquid conductive adhesive for power cable accessories according to claim 1 or 2, wherein the specific surface area of the conductive carbon black is 10 to 100m2/g。
8. The liquid conductive adhesive for power cable accessories according to claim 1 or 2, wherein the inhibitor is one or more of 3-methyl-1-butyn-3-ol, 3-methyl-1-pentyn-3-ol, 3, 5-dimethyl-1-hexyn-3-ol, 1-ethynyl-1-cyclohexanol, and tetramethyltetravinylcyclotetrasiloxane.
9. The preparation method of the liquid conductive adhesive for the power cable accessories according to any one of claims 1 to 8, characterized by comprising the following steps:
s1) preparation of base gum a: putting methyl hexadecyl dimethoxy silane and 1/4 formula amount vinyl silicone oil into an internal mixer to be stirred for 3-7 min; during stirring, uniformly dividing 5 parts of conductive carbon black, and sequentially adding the conductive carbon black into an internal mixer, wherein the materials in the internal mixer are determined to be agglomerated before each part of the conductive carbon black is added; after all the conductive carbon black is added, stirring for 4-6 h at the temperature of not higher than 90 ℃; heating to 150 ℃, stirring for 2-2.5 h, and cooling to obtain base rubber A;
s2) preparation of base gum B: hexamethyldisilazane, distilled water and 1/4 formula amount vinyl silicone oil are put into a reaction kettle and stirred uniformly; during stirring, uniformly dividing 6 parts of fumed silica, and sequentially adding into a reaction kettle, and confirming that materials in the reaction kettle are agglomerated before each part is added; after all the fumed silica is added, stirring for 1-3 h at the temperature of not higher than 90 ℃; heating to 150 ℃, stirring for 2-2.5 h, and cooling to obtain base rubber B;
s3) preparation of A glue: mixing and stirring 1/2 amounts of base rubber A in the step S1, 1/2 amounts of base rubber B in the step S2, 1/4 amounts of vinyl silicone oil, 1/2 amounts of polyvinyl silicone oil and platinum catalyst, and performing pressure filtration to obtain rubber A;
s4) preparation of B glue: mixing and stirring the base glue A obtained in the step S1 with the residual 1/2 amount, the base glue B obtained in the step S2 with the residual 1/2 amount, the vinyl silicone oil obtained in the residual 1/4 formula amount, the polyvinyl silicone oil obtained in the residual 1/2 formula amount, the hydrogen-containing silicone oil and the inhibitor, and performing pressure filtration to obtain glue B;
s5) preparing liquid conductive adhesive: and mixing the glue A and the glue B according to the mass ratio of 1:1 to obtain the liquid conductive adhesive.
10. Use of the liquid conductive adhesive for power cable accessories according to any one of claims 1 to 8 in a power cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158481.8A CN110845851B (en) | 2019-11-22 | 2019-11-22 | Liquid conductive adhesive for power cable accessories and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158481.8A CN110845851B (en) | 2019-11-22 | 2019-11-22 | Liquid conductive adhesive for power cable accessories and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110845851A true CN110845851A (en) | 2020-02-28 |
| CN110845851B CN110845851B (en) | 2022-02-11 |
Family
ID=69603910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911158481.8A Active CN110845851B (en) | 2019-11-22 | 2019-11-22 | Liquid conductive adhesive for power cable accessories and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110845851B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286998A (en) * | 2022-08-31 | 2022-11-04 | 广东电网有限责任公司广州供电局 | Conductive repair liquid for ablation fault of cable buffer layer and preparation method and application thereof |
| CN117659592B (en) * | 2023-12-29 | 2024-05-17 | 杭州毅而玛管业有限公司 | Power cable protection tube and production method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003128918A (en) * | 2001-10-19 | 2003-05-08 | Fujikura Ltd | Silicone rubber composition and electric wire and cable using the same |
| CN102191012A (en) * | 2011-03-22 | 2011-09-21 | 上海本诺电子材料有限公司 | Solvent-free monocomponent organosilicon conducting resin used in LEDs and preparation method thereof |
| CN102277128A (en) * | 2011-06-15 | 2011-12-14 | 浙江科创新材料科技有限公司 | Conductive silicone rubber adhesive moulded on-site at room temperature and application method |
| CN110003664A (en) * | 2019-04-15 | 2019-07-12 | 深圳市威富通讯技术有限公司 | Liquid conductive silastic and its preparation method and application |
-
2019
- 2019-11-22 CN CN201911158481.8A patent/CN110845851B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003128918A (en) * | 2001-10-19 | 2003-05-08 | Fujikura Ltd | Silicone rubber composition and electric wire and cable using the same |
| CN102191012A (en) * | 2011-03-22 | 2011-09-21 | 上海本诺电子材料有限公司 | Solvent-free monocomponent organosilicon conducting resin used in LEDs and preparation method thereof |
| CN102277128A (en) * | 2011-06-15 | 2011-12-14 | 浙江科创新材料科技有限公司 | Conductive silicone rubber adhesive moulded on-site at room temperature and application method |
| CN110003664A (en) * | 2019-04-15 | 2019-07-12 | 深圳市威富通讯技术有限公司 | Liquid conductive silastic and its preparation method and application |
Non-Patent Citations (2)
| Title |
|---|
| 徐镇田等: ""LED封装用乙烯基硅油的制备与固化性能"", 《化工新型材料》 * |
| 程宪涛等: "" 氧化铝的表面改性及其在导热有机硅灌封胶中的应用"", 《有机硅材料》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286998A (en) * | 2022-08-31 | 2022-11-04 | 广东电网有限责任公司广州供电局 | Conductive repair liquid for ablation fault of cable buffer layer and preparation method and application thereof |
| CN115286998B (en) * | 2022-08-31 | 2023-04-14 | 广东电网有限责任公司广州供电局 | Conductive repair liquid for ablation fault of cable buffer layer and preparation method and application thereof |
| CN117659592B (en) * | 2023-12-29 | 2024-05-17 | 杭州毅而玛管业有限公司 | Power cable protection tube and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110845851B (en) | 2022-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102010600B (en) | Conductive liquid silicon rubber-based adhesive and preparation method for composition thereof | |
| CN109735112B (en) | Addition type organic silicon heat-conducting gel and preparation method thereof | |
| CN110791103B (en) | Novel conductive liquid silicone rubber and preparation method and application thereof | |
| CN108129850A (en) | A kind of high rebound high-strength silicone rubber and preparation method thereof | |
| CN111394054A (en) | Silicone rubber for self-adhesive tape and preparation method thereof | |
| CN106928725A (en) | conductive curable organic silicon rubber | |
| CN115181270A (en) | Ternary polymerization fluorosilicone rubber and preparation method thereof | |
| CN103694709A (en) | Creepage-resistant tracking agent for addition-type liquid silicon rubber and preparation method and application thereof | |
| CN110845851B (en) | Liquid conductive adhesive for power cable accessories and preparation method thereof | |
| CN104072998A (en) | Base rubber material of high dielectric constant liquid silicone rubber and application thereof in composition | |
| CN113088090A (en) | High-resilience low-pressure-change silicone rubber material and preparation method thereof | |
| CN104497579A (en) | One-component room temperature vulcanized organic silicon rubber with high adhesion and preparation method thereof | |
| CN105838077A (en) | Surface treatment method of graphene used for producing heat conducting silicon sheets | |
| CN103436035B (en) | A kind of Novel silicon resin | |
| CN110922762A (en) | High-conductivity silica gel composition based on conductive powder wet modification technology | |
| CN101544835A (en) | Liquid silicone rubber used for prefabricated type cable accessory and process for producing same | |
| CN111171579B (en) | Wear-resistant temperature-resistant self-lubricating silicone rubber and preparation method and application thereof | |
| CN104845375A (en) | Low-dielectric-constant liquid silicone rubber composite material and preparation method thereof | |
| CN110862693B (en) | Bi-component liquid silicone rubber with ultralow compression set rate for foam | |
| CN101798464A (en) | Composition for preparing organic silicon elastomer, organic silicon elastomer and preparation method and application thereof | |
| JP2015187253A (en) | fluorosilicone rubber composition | |
| CN105153711A (en) | Liquid fluorosilicone rubber for cold-shrinkable power cable accessories and preparation method thereof | |
| CN101575454A (en) | Liquid conductive silastic used for electric stress control and preparation method thereof | |
| CN115286924A (en) | Silicone rubber self-bleeding oil auxiliary agent master batch, self-bleeding oil silicone rubber and preparation method | |
| CN109777112A (en) | A kind of silicone rubber for composite insulator and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |