CN113717531A - High-sealing silicon rubber material - Google Patents
High-sealing silicon rubber material Download PDFInfo
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- CN113717531A CN113717531A CN202111228793.9A CN202111228793A CN113717531A CN 113717531 A CN113717531 A CN 113717531A CN 202111228793 A CN202111228793 A CN 202111228793A CN 113717531 A CN113717531 A CN 113717531A
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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
- 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
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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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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention provides a high-sealing silicon rubber material which comprises, by weight, 3-5 parts of nano kaolin, 1-2 parts of a water blocking agent, 1-2 parts of a damping agent, 60-75 parts of low-phenyl silicone rubber, 5-7 parts of nano ceramic powder, 10-15 parts of high-temperature resistant resin, 2-3 parts of a fireproof agent, 1-2 parts of zinc oxide, 1.3-1.7 parts of a heat stabilizer, 2-3 parts of a nano antiwear agent, 20-30 parts of fluorosilicone rubber and 2-4 parts of a crosslinking agent. The high-sealing silicon rubber material has good sealing performance, excellent aging resistance, long service life, good oil resistance and solvent resistance, and good high-temperature aging resistance; in addition, the material also has good elasticity, low compression set rate, high temperature resistance, good mechanical property and the like.
Description
Technical Field
The invention relates to the technical field of high-temperature-resistant and high-sealing materials, in particular to a high-sealing silicon rubber material.
Background
The rubber is elastic, insulating, waterproof and air-proof material prepared from latex of plants such as rubber tree and rubber grass. A high-elasticity polymer compound. It is divided into two types of natural rubber and synthetic rubber. The natural rubber is prepared by extracting colloid from plants such as rubber tree and rubber grass and processing; synthetic rubbers are obtained by polymerization of various monomers. The rubber product has unique performance, so that the rubber is a better raw material for manufacturing the sealing ring. The rubber sealing element is a general basic element in a sealing device, is a rubber product widely applied in the sealing technology, and is widely suitable for being installed on various mechanical equipment due to the advantages of small elastic modulus, high elongation, air permeability resistance and the like. In the working environment, the lubricating system of mechanical equipment contains acid and alkali components, which easily permeate into the sealing element to cause the expansion of the sealing element, thus affecting the service life of the sealing element, moreover, the long-term severe working environment, such as high temperature and high pressure, accelerates the damage rate of the sealing element, the replacement cycle of the sealing element is short, and troubles are brought to the continuous production of enterprises.
Therefore, a high-sealing silicone rubber material is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a high-sealing silicon rubber material which not only has good sealing performance, but also has excellent aging resistance, long service life, good oil resistance and solvent resistance and good high-temperature aging resistance; in addition, the material also has good elasticity, low compression set rate, high temperature resistance, good mechanical property and the like.
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-sealing silicon rubber material comprises, by weight, 3-5 parts of nano kaolin, 1-2 parts of a water blocking agent, 1-2 parts of a damping agent, 60-75 parts of low-phenyl silicone rubber, 5-7 parts of nano ceramic powder, 10-15 parts of high-temperature resistant resin, 2-3 parts of a fireproof agent, 1-2 parts of zinc oxide, 1.3-1.7 parts of a heat stabilizer, 2-3 parts of a nano anti-wear agent, 20-30 parts of fluorosilicone rubber and 2-4 parts of a crosslinking agent.
Preferably, the high-temperature resistant resin is polytetrafluoroethylene.
Preferably, the fluorosilicone rubber is FVMQ fluorosilicone rubber.
Preferably, the high-sealing silicon rubber material comprises, by weight, 5 parts of nano kaolin, 2 parts of a water blocking agent, 1 part of a damping agent, 65 parts of low-phenyl silicon rubber, 5 parts of nano ceramic powder, 12 parts of high-temperature-resistant resin, 2 parts of a fire retardant, 2 parts of zinc oxide, 1.7 parts of a heat stabilizer, 3 parts of a nano antiwear agent, 24 parts of fluorosilicone rubber and 3 parts of a crosslinking agent.
Preferably, the cross-linking agent is a mixture of sulfur and zinc methacrylate.
Preferably, the zinc oxide is nano zinc oxide.
A production method of a high-sealing silicon rubber material is characterized by comprising the following steps: the method comprises the following steps:
(1): fully and uniformly melting the low-phenyl silicone rubber, the high-temperature-resistant resin and the fluorosilicone rubber by using a hot melting pot;
(2): feeding the mixture into an internal mixer, adding the nano kaolin, the water blocking agent, the damping agent, the nano ceramic powder, the fireproof agent and the zinc oxide, carrying out internal mixing for 2-3 hours at the temperature of 100-110 ℃, then heating to the temperature of 130-135 ℃, adding the heat stabilizer, the nano antiwear agent and the crosslinking agent, and carrying out internal mixing for 45-60 minutes;
(3) and (4) rolling and molding the cooled rubber material by a rolling mill, and performing reverse mold molding.
The invention provides a high-sealing silicon rubber material. The method has the following beneficial effects:
1. the high-sealing silicon rubber material provided by the invention has good sealing performance, excellent aging resistance, long service life, good oil resistance and solvent resistance, and good high-temperature aging resistance; in addition, the material also has good elasticity, low compression set rate, high temperature resistance, good mechanical property and the like.
Detailed Description
The invention will be further described with reference to specific embodiments:
a high-sealing silicon rubber material comprises, by weight, 3-5 parts of nano kaolin, 1-2 parts of a water blocking agent, 1-2 parts of a damping agent, 60-75 parts of low-phenyl silicone rubber, 5-7 parts of nano ceramic powder, 10-15 parts of high-temperature resistant resin, 2-3 parts of a fireproof agent, 1-2 parts of zinc oxide, 1.3-1.7 parts of a heat stabilizer, 2-3 parts of a nano anti-wear agent, 20-30 parts of fluorosilicone rubber and 2-4 parts of a crosslinking agent.
According to the scheme, the high-temperature-resistant resin is polytetrafluoroethylene, the fluorosilicone rubber is FVMQ fluorosilicone rubber, the high-sealing silicone rubber material comprises the following components, by weight, 5 parts of nano kaolin, 2 parts of a water blocking agent, 1 part of a damping agent, 65 parts of low-phenyl silicone rubber, 5 parts of nano ceramic powder, 12 parts of high-temperature-resistant resin, 2 parts of a fire retardant, 2 parts of zinc oxide, 1.7 parts of a heat stabilizer, 3 parts of a nano antiwear agent, 24 parts of fluorosilicone rubber and 3 parts of a cross-linking agent, the cross-linking agent is a mixture of sulfur and zinc methacrylate, and the zinc oxide is nano zinc oxide.
A production method of a high-sealing silicon rubber material comprises the following steps:
(1): weighing 5 parts of nano kaolin, 2 parts of a water-blocking agent, 1 part of a damping agent, 65 parts of low-phenyl silicone rubber, 5 parts of nano ceramic powder, 12 parts of high-temperature resistant resin, 2 parts of a fire retardant, 2 parts of zinc oxide, 1.7 parts of a heat stabilizer, 3 parts of a nano antiwear agent, 24 parts of fluorosilicone rubber and 3 parts of a cross-linking agent, and fully and uniformly melting the low-phenyl silicone rubber, the high-temperature resistant resin and the fluorosilicone rubber by using a hot melting pot;
(2): feeding the mixture into an internal mixer, adding the nano kaolin, the water blocking agent, the damping agent, the nano ceramic powder, the fireproof agent and the zinc oxide, carrying out internal mixing for 2-3 hours at the temperature of 100-110 ℃, then heating to the temperature of 130-135 ℃, adding the heat stabilizer, the nano antiwear agent and the crosslinking agent, and carrying out internal mixing for 45-60 minutes;
(3) and (4) rolling and molding the cooled rubber material by a rolling mill, and performing reverse mold molding.
The high-sealing silicon rubber material not only has good sealing performance, but also has excellent aging resistance, long service life, good oil resistance and solvent resistance and good high-temperature aging resistance; in addition, the material also has good elasticity, low compression set rate, high temperature resistance, good mechanical property and the like.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The high-sealing silicon rubber material is characterized by comprising 3-5 parts of nano kaolin, 1-2 parts of water-blocking agent, 1-2 parts of damping agent, 60-75 parts of low-phenyl silicone rubber, 5-7 parts of nano ceramic powder, 10-15 parts of high-temperature-resistant resin, 2-3 parts of fireproof agent, 1-2 parts of zinc oxide, 1.3-1.7 parts of heat stabilizer, 2-3 parts of nano antiwear agent, 20-30 parts of fluorosilicone rubber and 2-4 parts of crosslinking agent.
2. The high-sealing silicone rubber material according to claim 1, wherein: the high-temperature resistant resin is polytetrafluoroethylene.
3. The high-sealing silicone rubber material according to claim 1, wherein: the fluorosilicone rubber is FVMQ fluorosilicone rubber.
4. The high-sealing silicone rubber material according to claim 1, wherein: the high-sealing silicon rubber material comprises, by weight, 5 parts of nano kaolin, 2 parts of a water blocking agent, 1 part of a damping agent, 65 parts of low-phenyl silicon rubber, 5 parts of nano ceramic powder, 12 parts of high-temperature-resistant resin, 2 parts of a fire retardant, 2 parts of zinc oxide, 1.7 parts of a heat stabilizer, 3 parts of a nano antiwear agent, 24 parts of fluorosilicone rubber and 3 parts of a crosslinking agent.
5. The high-sealing silicone rubber material according to claim 1, wherein: the cross-linking agent is a mixture of sulfur and zinc methacrylate.
6. The high-sealing silicone rubber material according to claim 1, wherein: the zinc oxide is nano zinc oxide.
7. A production method of a high-sealing silicon rubber material is characterized by comprising the following steps: the method comprises the following steps:
(1): fully and uniformly melting the low-phenyl silicone rubber, the high-temperature-resistant resin and the fluorosilicone rubber by using a hot melting pot;
(2): feeding the mixture into an internal mixer, adding the nano kaolin, the water blocking agent, the damping agent, the nano ceramic powder, the fireproof agent and the zinc oxide, carrying out internal mixing for 2-3 hours at the temperature of 100-110 ℃, then heating to the temperature of 130-135 ℃, adding the heat stabilizer, the nano antiwear agent and the crosslinking agent, and carrying out internal mixing for 45-60 minutes;
(3) and (4) rolling and molding the cooled rubber material by a rolling mill, and performing reverse mold molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111228793.9A CN113717531A (en) | 2021-10-21 | 2021-10-21 | High-sealing silicon rubber material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111228793.9A CN113717531A (en) | 2021-10-21 | 2021-10-21 | High-sealing silicon rubber material |
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| CN113717531A true CN113717531A (en) | 2021-11-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004074198A1 (en) * | 2003-02-19 | 2004-09-02 | Yamato Electronic Co., Ltd. | Lead-free glass material for use in sealing and, sealed article and method for sealing using the same |
| CN110317454A (en) * | 2019-06-14 | 2019-10-11 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of high-damping waterproof silicon rubber sealing material and preparation method thereof |
| CN111534105A (en) * | 2020-04-02 | 2020-08-14 | 浙江翔宇密封件有限公司 | Anti-aging silicone rubber sealing material for high-speed rail sealing element and preparation method thereof |
| CN113308116A (en) * | 2021-06-04 | 2021-08-27 | 江苏泓相密封件科技有限公司 | Rubber sealing ring and preparation method thereof |
-
2021
- 2021-10-21 CN CN202111228793.9A patent/CN113717531A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004074198A1 (en) * | 2003-02-19 | 2004-09-02 | Yamato Electronic Co., Ltd. | Lead-free glass material for use in sealing and, sealed article and method for sealing using the same |
| CN110317454A (en) * | 2019-06-14 | 2019-10-11 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of high-damping waterproof silicon rubber sealing material and preparation method thereof |
| CN111534105A (en) * | 2020-04-02 | 2020-08-14 | 浙江翔宇密封件有限公司 | Anti-aging silicone rubber sealing material for high-speed rail sealing element and preparation method thereof |
| CN113308116A (en) * | 2021-06-04 | 2021-08-27 | 江苏泓相密封件科技有限公司 | Rubber sealing ring and preparation method thereof |
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