CN112029287A - Conductive silicone rubber - Google Patents
Conductive silicone rubber Download PDFInfo
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- CN112029287A CN112029287A CN202010969313.3A CN202010969313A CN112029287A CN 112029287 A CN112029287 A CN 112029287A CN 202010969313 A CN202010969313 A CN 202010969313A CN 112029287 A CN112029287 A CN 112029287A
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- silicone rubber
- conductive silicone
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0862—Nickel
-
- 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
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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
- C08L2201/04—Antistatic
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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
Abstract
The invention relates to conductive silicone rubber which is prepared from the following materials in parts by weight: 60-70 parts of silicon rubber, 30-40 parts of carbon powder, 3-7 parts of metal powder, 10-20 parts of cross-linking agent, 1-3 parts of catalyst and 120 parts of solvent. The conductive silicone rubber prepared by the formula and the preparation method of the conductive silicone rubber disclosed by the invention has the advantages of low volume resistivity and high aging resistance, so that the conductive silicone rubber has better performance and longer service life, and the product quality of the conductive silicone rubber is greatly improved.
Description
Technical Field
The invention relates to conductive silicone rubber.
Background
The conductive silicone rubber is prepared by taking silicone rubber as base rubber, adding conductive filler, cross-linking agent and the like, mixing, refining and vulcanizing. Compared with common conductive rubber, the conductive silicone rubber has the advantages of small volume resistivity, low hardness, high and low temperature resistance (70-200 ℃), aging resistance and good processing and manufacturing process performance, and is particularly suitable for manufacturing conductive silicone rubber products with good conductivity, complex shapes and fine structures.
However, the conductive silicone rubber in the current market has different quality due to different formulations and different manufacturing methods, and most of the conductive silicone rubber has large volume resistivity and low aging resistance.
Disclosure of Invention
The invention aims to provide the conductive silicone rubber with low volume resistivity and high aging resistance.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the conductive silicone rubber is prepared from the following materials in parts by weight: 60-70 parts of silicon rubber, 30-40 parts of carbon powder, 3-7 parts of metal powder, 10-20 parts of cross-linking agent, 1-3 parts of catalyst and 120 parts of solvent.
As a further improvement of the invention, the material comprises the following materials in parts by weight: 65 parts of silicon rubber, 35 parts of carbon powder, 5 parts of metal powder, 15 parts of a cross-linking agent, 2 parts of a catalyst and 110 parts of a solvent.
As a further improvement of the invention, the material comprises the following materials in parts by weight: 60 parts of silicon rubber, 30 parts of carbon powder, 3 parts of metal powder, 10 parts of a crosslinking agent, 1 part of a catalyst and 100 parts of a solvent.
As a further improvement of the invention, the material comprises the following materials in parts by weight: 70 parts of silicon rubber, 40 parts of carbon powder, 7 parts of metal powder, 20 parts of a cross-linking agent, 3 parts of a catalyst and 120 parts of a solvent.
As a further improvement of the invention, the metal powder is one or more of nickel, copper and silver.
As a further improvement of the invention, the cross-linking agent is tetraethoxysilane.
As a further development of the invention, the catalyst is dibutyltin dilaurate.
As a further improvement of the invention, the solvent is n-hexane.
As a further improvement of the invention, the preparation method is as follows:
step one, adding carbon powder into a solvent for full dissolution;
step two, adding silicon rubber into the solution obtained in the step one and completely dissolving the silicon rubber, and keeping stirring in the silicon rubber dissolving process;
step three, adding a cross-linking agent, a catalyst and metal powder into the solution obtained in the step two, and fully stirring;
step four, standing the solution obtained in the step three for 10-20 minutes;
and step five, putting the solution obtained in the step four into a mould and vulcanizing and molding.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the conductive silicone rubber prepared by the formula and the preparation method of the conductive silicone rubber disclosed by the invention has the advantages of low volume resistivity and high aging resistance, so that the conductive silicone rubber has better performance and longer service life, and the product quality of the conductive silicone rubber is greatly improved.
Detailed Description
For purposes of clarity and a complete description of the present invention, and to provide further clarity and understanding of the objects, technical solutions and advantages thereof, it is to be understood that the terms "center", "vertical", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used in an illustrative, positional or other orientation, and are used for convenience in describing and simplifying the present invention, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention.
Example 1
The conductive silicone rubber is prepared from the following materials in parts by weight: 65 parts of silicon rubber, 35 parts of carbon powder, 5 parts of nickel, 15 parts of ethyl orthosilicate, 2 parts of dibutyltin dilaurate and 110 parts of normal hexane.
The conductive silicone rubber prepared by the formula meets the following performances: the volume resistivity is less than or equal to 40 omega cm, the instantaneous resilience is more than or equal to 70 percent, the Shore A hardness is less than or equal to 60 percent, and the 25 percent constant compression permanent deformation is less than or equal to 15 percent.
Example 2
The conductive silicone rubber is prepared from the following materials in parts by weight: 60 parts of silicon rubber, 30 parts of carbon powder, 3 parts of copper, 10 parts of ethyl orthosilicate, 1 part of dibutyltin dilaurate and 100 parts of normal hexane.
The conductive silicone rubber prepared by the formula meets the following performances: the volume resistivity is less than or equal to 45 omega cm, the instantaneous resilience is more than or equal to 65 percent, the Shore A hardness is less than or equal to 55 percent, and the 25 percent constant compression permanent deformation is less than or equal to 12 percent.
Example 3
The conductive silicone rubber is prepared from the following materials in parts by weight: 70 parts of silicon rubber, 40 parts of carbon powder, 7 parts of silver, 20 parts of ethyl orthosilicate, 3 parts of dibutyltin dilaurate and 120 parts of normal hexane.
The conductive silicone rubber prepared by the formula meets the following performances: the conductive silicone rubber prepared by the formula meets the following performances: the volume resistivity is less than or equal to 44 omega cm, the instantaneous resilience is more than or equal to 67 percent, the Shore A hardness is less than or equal to 56 percent, and the 25 percent constant compression permanent deformation is less than or equal to 13 percent.
Example 4
The preparation method of the conductive silicone rubber is as follows:
step one, adding carbon powder into a normal hexane solvent for full dissolution;
step two, adding silicon rubber into the solution obtained in the step one and completely dissolving the silicon rubber, and keeping stirring in the silicon rubber dissolving process;
step three, adding a cross-linking agent ethyl orthosilicate, a catalyst dibutyltin dilaurate and metal powder into the solution obtained in the step two, wherein the metal powder is nickel, copper or silver, and fully stirring;
step four, standing the solution obtained in the step three for 10-20 minutes;
and step five, putting the solution obtained in the step four into a mould and vulcanizing and molding.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The conductive silicone rubber is characterized by being prepared from the following materials in parts by weight: 60-70 parts of silicon rubber, 30-40 parts of carbon powder, 3-7 parts of metal powder, 10-20 parts of cross-linking agent, 1-3 parts of catalyst and 120 parts of solvent.
2. The conductive silicone rubber according to claim 1, characterized in that it is composed of the following materials in parts by weight: 65 parts of silicon rubber, 35 parts of carbon powder, 5 parts of metal powder, 15 parts of a cross-linking agent, 2 parts of a catalyst and 110 parts of a solvent.
3. The conductive silicone rubber according to claim 1, characterized in that it is composed of the following materials in parts by weight: 60 parts of silicon rubber, 30 parts of carbon powder, 3 parts of metal powder, 10 parts of a crosslinking agent, 1 part of a catalyst and 100 parts of a solvent.
4. The conductive silicone rubber according to claim 1, characterized in that it is composed of the following materials in parts by weight: 70 parts of silicon rubber, 40 parts of carbon powder, 7 parts of metal powder, 20 parts of a cross-linking agent, 3 parts of a catalyst and 120 parts of a solvent.
5. The electrically conductive silicone rubber according to any one of claims 1 to 4, characterized in that: the metal powder is one or more of nickel, copper and silver.
6. The electrically conductive silicone rubber according to any one of claims 1 to 4, characterized in that: the cross-linking agent is tetraethoxysilane.
7. The electrically conductive silicone rubber according to any one of claims 1 to 4, characterized in that: the catalyst is dibutyltin dilaurate.
8. The electrically conductive silicone rubber according to any one of claims 1 to 4, characterized in that: the solvent is n-hexane.
9. The electrically conductive silicone rubber according to any one of claims 1 to 4, characterized in that it is prepared as follows:
step one, adding carbon powder into a solvent for full dissolution;
step two, adding silicon rubber into the solution obtained in the step one and completely dissolving the silicon rubber, and keeping stirring in the silicon rubber dissolving process;
step three, adding a cross-linking agent, a catalyst and metal powder into the solution obtained in the step two, and fully stirring;
step four, standing the solution obtained in the step three for 10-20 minutes;
and step five, putting the solution obtained in the step four into a mould and vulcanizing and molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969313.3A CN112029287A (en) | 2020-09-15 | 2020-09-15 | Conductive silicone rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969313.3A CN112029287A (en) | 2020-09-15 | 2020-09-15 | Conductive silicone rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112029287A true CN112029287A (en) | 2020-12-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010969313.3A Withdrawn CN112029287A (en) | 2020-09-15 | 2020-09-15 | Conductive silicone rubber |
Country Status (1)
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| CN (1) | CN112029287A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4748436A (en) * | 1986-05-22 | 1988-05-31 | Yazaki Corporation | Noise prevention high voltage resistance wire |
| US5790926A (en) * | 1995-03-30 | 1998-08-04 | Canon Kabushiki Kaisha | Charging member having a raised fiber-entangled material, and process cartridge and electrophotographic apparatus having the charging member |
| US20030222077A1 (en) * | 2002-05-09 | 2003-12-04 | Mitsubishi Pencil Co., Ltd. | Resistive heating element and production method |
| US20090148748A1 (en) * | 2007-12-07 | 2009-06-11 | Daisuke Okonogi | Separator and separator seal for polymer electrolyte fuel cells |
| CN101787212A (en) * | 2010-01-12 | 2010-07-28 | 山东大学 | Room temperature vulcanized conductive silicon rubber and preparation method thereof |
| CN108822556A (en) * | 2018-05-31 | 2018-11-16 | 镇江高美新材料有限公司 | A kind of conducting liquid silicone rubber compound and its manufacturing method |
| CN109777116A (en) * | 2018-12-14 | 2019-05-21 | 昆山裕凌电子科技有限公司 | A kind of soft high-strength conductive silicon rubber and preparation method thereof |
-
2020
- 2020-09-15 CN CN202010969313.3A patent/CN112029287A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4748436A (en) * | 1986-05-22 | 1988-05-31 | Yazaki Corporation | Noise prevention high voltage resistance wire |
| US5790926A (en) * | 1995-03-30 | 1998-08-04 | Canon Kabushiki Kaisha | Charging member having a raised fiber-entangled material, and process cartridge and electrophotographic apparatus having the charging member |
| US20030222077A1 (en) * | 2002-05-09 | 2003-12-04 | Mitsubishi Pencil Co., Ltd. | Resistive heating element and production method |
| US20090148748A1 (en) * | 2007-12-07 | 2009-06-11 | Daisuke Okonogi | Separator and separator seal for polymer electrolyte fuel cells |
| CN101787212A (en) * | 2010-01-12 | 2010-07-28 | 山东大学 | Room temperature vulcanized conductive silicon rubber and preparation method thereof |
| CN108822556A (en) * | 2018-05-31 | 2018-11-16 | 镇江高美新材料有限公司 | A kind of conducting liquid silicone rubber compound and its manufacturing method |
| CN109777116A (en) * | 2018-12-14 | 2019-05-21 | 昆山裕凌电子科技有限公司 | A kind of soft high-strength conductive silicon rubber and preparation method thereof |
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20201204 |