CN111234335A - Anti-aging rubber sealing ring material and preparation method thereof - Google Patents
Anti-aging rubber sealing ring material and preparation method thereof Download PDFInfo
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- CN111234335A CN111234335A CN201911332002.XA CN201911332002A CN111234335A CN 111234335 A CN111234335 A CN 111234335A CN 201911332002 A CN201911332002 A CN 201911332002A CN 111234335 A CN111234335 A CN 111234335A
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- 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
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- Compositions Of Macromolecular Compounds (AREA)
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Abstract
The invention discloses an anti-aging rubber sealing ring material and a preparation method thereof, wherein the anti-aging rubber sealing ring material is prepared from the following raw materials in parts by weight: 50-60 parts of styrene-butadiene rubber, 10-20 parts of acrylate rubber, 10-15 parts of VMQ resin, 15-20 parts of nano argil, 3-5 parts of nano silicon dioxide, 3-10 parts of polysiloxane, 5-7 parts of nano titanium dioxide, 5-10 parts of anti-aging agent, 4-8 parts of vulcanizing agent, 1-2 parts of ethylene bis-stearic acid amide, 1-2 parts of sodium dodecyl sulfate, 0.1-1 part of dibasic lead phosphite, 2-3 parts of zinc stearate and 5-10 parts of composite auxiliary agent. The high-temperature resistance and the ageing resistance of the rubber sealing ring are greatly improved, and the use requirement of a high-temperature environment is met. The components are mutually promoted, and the prepared rubber sealing ring has high performance.
Description
Technical Field
The invention relates to the technical field of sealing rings, in particular to an anti-aging rubber sealing ring material and a preparation method thereof.
Background
The sealing ring is a material or a part for preventing fluid or solid particles from leaking from adjacent joint surfaces and preventing impurities such as external dust or moisture from invading parts in the machine equipment, generally works under certain pressure and temperature conditions, sealing effects of sealing rings with different structures and different materials are different under different conditions, and once the sealing of the sealing ring fails, the use of the equipment is directly influenced. At present, due to the fact that the ageing resistance of a rubber sealing ring is poor, the service life of the sealing ring can be shortened, and meanwhile, the aged sealing ring can be bonded with metal, the mechanical property is poor, and the thermal stability is rapidly reduced, so that an ageing-resistant rubber sealing ring material and a preparation method thereof are needed.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention enhances the pressure resistance and ageing resistance of the sealing ring material and prolongs the service life of the sealing ring.
In order to achieve the purpose, the invention adopts the technical scheme that: the anti-aging rubber sealing ring material is prepared from the following raw materials in parts by weight: 50-60 parts of styrene-butadiene rubber, 10-20 parts of acrylate rubber, 10-15 parts of VMQ resin, 15-20 parts of nano argil, 3-5 parts of nano silicon dioxide, 3-10 parts of polysiloxane, 5-7 parts of nano titanium dioxide, 5-10 parts of anti-aging agent, 4-8 parts of vulcanizing agent, 1-2 parts of ethylene bis-stearic acid amide, 1-2 parts of sodium dodecyl sulfate, 0.1-1 part of dibasic lead phosphite, 2-3 parts of zinc stearate and 5-10 parts of composite auxiliary agent.
Further, the anti-aging rubber sealing ring material is prepared from the following raw materials in parts by weight: 55 parts of styrene-butadiene rubber, 15 parts of acrylate rubber, 12 parts of VMQ resin, 16 parts of nano argil, 4 parts of nano silicon dioxide, 6 parts of polyorganosiloxane, 6 parts of nano titanium dioxide, 7 parts of anti-aging agent, 6 parts of vulcanizing agent, 1.5 parts of ethylene bis stearamide, 1.5 parts of sodium dodecyl sulfate, 0.7 part of dibasic lead phosphite, 2.5 parts of zinc stearate and 6 parts of composite auxiliary agent.
Further, the composite auxiliary agent is prepared from the following raw materials in parts by weight: 20-30 parts of tea seed oil, 2-4 parts of glycerol, 5-10 parts of acetyl tributyl citrate, 1-2 parts of phytic acid, 1-2 parts of sorbitan monostearate and 1-2 parts of nano titanium dioxide.
Furthermore, the polyorganosiloxane has a structure in which at least two vinyl groups are connected with a silicon atom, the viscosity is 500-100000mPa.s at 25 ℃, and the vinyl content is 0.05-8.0%; the vinyl is positioned at the tail end of a molecular chain, in the middle of the molecular chain or at the tail end and in the middle of the molecular chain.
Further, the VMQ resin has a structural formula of [ (CH3)3SiO1/2] a [ (CH2 ═ CH) (CH3)2SiO1/2] b [ SiO4/2] c, the range of M/Q is 0.5-1.0, the vinyl content is 0.5-13%, wherein a is 0,1, 2; b and c are natural integers of 1 or more.
Further, the anti-aging agent is one or a mixture of more of an antioxidant 3052, tris (2, 4-di-tert-butylphenyl) phosphite, tris (nonylphenyl) phosphite, didodecyl thiodipropionate and 2- (2 '-hydroxy-5' -tert-octylphenyl) benzotriazole.
A preparation method of an anti-aging rubber sealing ring material comprises the following steps: weighing the following raw materials in parts by weight: 50-60 parts of styrene-butadiene rubber, 10-20 parts of acrylate rubber, 10-15 parts of VMQ resin, 15-20 parts of nano argil, 3-5 parts of nano silicon dioxide, 3-10 parts of polysiloxane, 5-7 parts of nano titanium dioxide, 5-10 parts of anti-aging agent, 4-8 parts of vulcanizing agent, 1-2 parts of ethylene bis-stearic acid amide, 1-2 parts of sodium dodecyl sulfate, 0.1-1 part of dibasic lead phosphite, 2-3 parts of zinc stearate and 5-10 parts of composite auxiliary agent; step two: mixing the raw materials; step three: reprocessing the primary mixed material; step four: reprocessing the secondary rubber compound; step five: carrying out die assembly and vulcanization molding; step six: trimming; step seven: and (5) quality inspection classification processing.
Further, in the second step, adding the styrene-butadiene rubber and the acrylate rubber into an internal mixer, plasticating on the internal mixer, uniformly adding the polyorganosiloxane when the thickness of the plasticated rubber material reaches 2-3mm, and uniformly mixing at 60-80 ℃ to obtain a primary mixed material for later use.
Further, in the third step, the mixing time is controlled to be 25-35 min.
Further, in the fourth step, an anti-aging agent is added into the secondary rubber compound obtained in the third step, the mixture is mixed for 3-5min, then a vulcanizing agent is added, and the mixture is mixed for 40-50s, so that the finished rubber compound is obtained.
After adopting the structure, the invention has the beneficial effects that: the invention provides an anti-aging rubber sealing ring material and a preparation method thereof aiming at the defects of the high temperature resistance and flame retardance of the existing rubber sealing ring and the like, the material can meet the use requirement of the existing rubber sealing ring, and the high temperature resistance and flame retardance of the rubber sealing ring are greatly improved. In addition, the components of the rubber sealing ring are uniformly dispersed by using the composite auxiliary agent, the anti-aging agent and other auxiliary agents, and the components are mutually promoted, so that the prepared rubber sealing ring has high performance, and has great practicability, popularization value and the like.
Detailed Description
Example 1:
the anti-aging rubber sealing ring material is prepared from the following raw materials in parts by weight: 55 parts of styrene-butadiene rubber, 15 parts of acrylate rubber, 12 parts of VMQ resin, 16 parts of nano argil, 4 parts of nano silicon dioxide, 6 parts of polyorganosiloxane, 6 parts of nano titanium dioxide, 7 parts of anti-aging agent, 6 parts of vulcanizing agent, 1.5 parts of ethylene bis stearamide, 1.5 parts of sodium dodecyl sulfate, 0.7 part of dibasic lead phosphite, 2.5 parts of zinc stearate and 6 parts of composite auxiliary agent.
In this embodiment, the composite additive is prepared from the following raw materials in parts by weight: 20-30 parts of tea seed oil, 3 parts of glycerol, 6 parts of acetyl tributyl citrate, 1.5 parts of phytic acid, 1.5 parts of sorbitan monostearate and 1.5 parts of nano titanium dioxide.
In this embodiment, the polyorganosiloxane has a structure in which at least two vinyl groups are bonded to a silicon atom, a viscosity of 500-100000mPa.s at 25 ℃, and a vinyl content of 0.05-8.0%; the vinyl is positioned at the tail end of a molecular chain, in the middle of the molecular chain or at the tail end and in the middle of the molecular chain.
In this embodiment, the VMQ resin has a structural formula of [ (CH3)3SiO1/2] a [ (CH2 ═ CH) (CH3)2SiO1/2] b [ SiO4/2] c, M/Q ranges from 0.5 to 1.0, and a vinyl content ranges from 0.5% to 13%, where a is 0,1, 2; b and c are natural integers of 1 or more.
In this embodiment, the antioxidant is a mixture of antioxidant 3052 and tris (2, 4-di-tert-butylphenyl) phosphite.
Example 2:
the anti-aging rubber sealing ring material is prepared from the following raw materials in parts by weight: 50 parts of styrene-butadiene rubber, 10 parts of acrylate rubber, 10 parts of VMQ resin, 15 parts of nano argil, 3 parts of nano silicon dioxide, 3 parts of poly-silicon-oxy-polysiloxane, 5 parts of nano titanium dioxide, 5 parts of anti-aging agent, 4 parts of vulcanizing agent, 1 part of ethylene bis stearamide, 1 part of sodium dodecyl sulfate, 0.1 part of dibasic lead phosphite, 2 parts of zinc stearate and 5 parts of composite auxiliary agent.
In this embodiment, the composite additive is prepared from the following raw materials in parts by weight: 20 parts of tea seed oil, 2 parts of glycerol, 5 parts of acetyl tributyl citrate, 1 part of phytic acid, 1 part of sorbitan monostearate and 1 part of nano titanium dioxide.
In this embodiment, the polyorganosiloxane has a structure in which at least two vinyl groups are bonded to a silicon atom, a viscosity of 500-100000mPa.s at 25 ℃, and a vinyl content of 0.05-8.0%; the vinyl is positioned at the tail end of a molecular chain, in the middle of the molecular chain or at the tail end and in the middle of the molecular chain.
In this embodiment, the VMQ resin has a structural formula of [ (CH3)3SiO1/2] a [ (CH2 ═ CH) (CH3)2SiO1/2] b [ SiO4/2] c, M/Q ranges from 0.5 to 1.0, and a vinyl content ranges from 0.5% to 13%, where a is 0,1, 2; b and c are natural integers of 1 or more.
In this example, the antioxidant was a mixture of didodecyl thiodipropionate and 2- (2 '-hydroxy-5' -tert-octylphenyl) benzotriazole.
A preparation method of an anti-aging rubber sealing ring material comprises the following steps: weighing the following raw materials in parts by weight: 50-60 parts of styrene-butadiene rubber, 10-20 parts of acrylate rubber, 10-15 parts of VMQ resin, 15-20 parts of nano argil, 3-5 parts of nano silicon dioxide, 3-10 parts of polysiloxane, 5-7 parts of nano titanium dioxide, 5-10 parts of anti-aging agent, 4-8 parts of vulcanizing agent, 1-2 parts of ethylene bis-stearic acid amide, 1-2 parts of sodium dodecyl sulfate, 0.1-1 part of dibasic lead phosphite, 2-3 parts of zinc stearate and 5-10 parts of composite auxiliary agent; step two: mixing the raw materials; step three: reprocessing the primary mixed material; step four: reprocessing the secondary rubber compound; step five: carrying out die assembly and vulcanization molding; step six: trimming; step seven: and (5) quality inspection classification processing.
In this example, in step two, styrene-butadiene rubber and acrylate rubber are added into an internal mixer, plasticating is performed on the internal mixer, polyorganosiloxane is uniformly added when the thickness of the plasticated rubber material reaches 2-3mm, and the mixture is uniformly mixed at 60-80 ℃ to obtain a primary mixed material for later use.
In the present embodiment, in the third step, the mixing time is controlled to be 25-35 min.
In the embodiment, in the fourth step, an anti-aging agent is added to the secondary mixed rubber obtained in the third step, and the mixture is mixed for 3-5min, then a vulcanizing agent is added, and the mixture is mixed for 40-50s, so as to obtain the finished mixed rubber.
The above description is only for the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and other modifications or equivalent substitutions made by the technical solution of the present invention by the ordinary skilled in the art should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides an ageing resistance rubber seal ring material which characterized in that: the anti-aging rubber sealing ring material is prepared from the following raw materials in parts by weight: 50-60 parts of styrene-butadiene rubber, 10-20 parts of acrylate rubber, 10-15 parts of VMQ resin, 15-20 parts of nano argil, 3-5 parts of nano silicon dioxide, 3-10 parts of polysiloxane, 5-7 parts of nano titanium dioxide, 5-10 parts of anti-aging agent, 4-8 parts of vulcanizing agent, 1-2 parts of ethylene bis-stearic acid amide, 1-2 parts of sodium dodecyl sulfate, 0.1-1 part of dibasic lead phosphite, 2-3 parts of zinc stearate and 5-10 parts of composite auxiliary agent.
2. The anti-aging rubber sealing ring material as claimed in claim 1, wherein: 55 parts of styrene-butadiene rubber, 15 parts of acrylate rubber, 12 parts of VMQ resin, 16 parts of nano argil, 4 parts of nano silicon dioxide, 6 parts of polyorganosiloxane, 6 parts of nano titanium dioxide, 7 parts of anti-aging agent, 6 parts of vulcanizing agent, 1.5 parts of ethylene bis stearamide, 1.5 parts of sodium dodecyl sulfate, 0.7 part of dibasic lead phosphite, 2.5 parts of zinc stearate and 6 parts of composite auxiliary agent.
3. The anti-aging rubber sealing ring material as claimed in claim 1, wherein: the composite auxiliary agent is prepared from the following raw materials in parts by weight: 20-30 parts of tea seed oil, 2-4 parts of glycerol, 5-10 parts of acetyl tributyl citrate, 1-2 parts of phytic acid, 1-2 parts of sorbitan monostearate and 1-2 parts of nano titanium dioxide.
4. The anti-aging rubber sealing ring material as claimed in claim 1, wherein: the polyorganosiloxane has a structure in which at least two vinyl groups are connected with a silicon atom, the viscosity is 500-100000mPa.s at 25 ℃, and the vinyl content is 0.05-8.0%; the vinyl is positioned at the tail end of a molecular chain, in the middle of the molecular chain or at the tail end and in the middle of the molecular chain.
5. The anti-aging rubber sealing ring material as claimed in claim 1, wherein: the VMQ resin has a structural formula of [ (CH3)3SiO1/2] a [ (CH2 ═ CH) (CH3)2SiO1/2] b [ SiO4/2] c, the range of M/Q is 0.5-1.0, the vinyl content is 0.5-13%, wherein a is 0,1, 2; b and c are natural integers of 1 or more.
6. The anti-aging rubber sealing ring material as claimed in claim 1, wherein: the anti-aging agent is one or a mixture of more of an antioxidant 3052, tris (2, 4-di-tert-butylphenyl) phosphite, tris (nonylphenyl) phosphite, didodecyl thiodipropionate and 2- (2 '-hydroxy-5' -tert-octylphenyl) benzotriazole.
7. A preparation method of an anti-aging rubber sealing ring material is characterized by comprising the following steps: the method comprises the following steps: weighing the following raw materials in parts by weight: 50-60 parts of styrene-butadiene rubber, 10-20 parts of acrylate rubber, 10-15 parts of VMQ resin, 15-20 parts of nano argil, 3-5 parts of nano silicon dioxide, 3-10 parts of polysiloxane, 5-7 parts of nano titanium dioxide, 5-10 parts of anti-aging agent, 4-8 parts of vulcanizing agent, 1-2 parts of ethylene bis-stearic acid amide, 1-2 parts of sodium dodecyl sulfate, 0.1-1 part of dibasic lead phosphite, 2-3 parts of zinc stearate and 5-10 parts of composite auxiliary agent; step two: mixing the raw materials; step three: reprocessing the primary mixed material; step four: reprocessing the secondary rubber compound; step five: carrying out die assembly and vulcanization molding; step six: trimming; step seven: and (5) quality inspection classification processing.
8. The preparation method of the anti-aging rubber sealing ring material as claimed in claim 7, wherein the preparation method comprises the following steps: in the second step, the styrene-butadiene rubber and the acrylate rubber are added into an internal mixer, plasticating is carried out on the internal mixer, the polyorganosiloxane is uniformly added when the thickness of the plasticated rubber material reaches 2-3mm, and the mixture is uniformly mixed at 60-80 ℃ to obtain a primary mixed material for later use.
9. The preparation method of the anti-aging rubber sealing ring material as claimed in claim 7, wherein the preparation method comprises the following steps: in the third step, the mixing time is controlled to be 25-35 min.
10. The preparation method of the anti-aging rubber sealing ring material as claimed in claim 7, wherein the preparation method comprises the following steps: in the fourth step, the anti-aging agent is added into the secondary rubber compound obtained in the third step, the mixture is mixed for 3-5min, then the vulcanizing agent is added, and the mixture is mixed for 40-50s, so that the finished rubber compound is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332002.XA CN111234335A (en) | 2019-12-21 | 2019-12-21 | Anti-aging rubber sealing ring material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332002.XA CN111234335A (en) | 2019-12-21 | 2019-12-21 | Anti-aging rubber sealing ring material and preparation method thereof |
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| CN111234335A true CN111234335A (en) | 2020-06-05 |
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| CN201911332002.XA Pending CN111234335A (en) | 2019-12-21 | 2019-12-21 | Anti-aging rubber sealing ring material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980068A (en) * | 2021-03-08 | 2021-06-18 | 上海瀛宏汽车配件有限公司 | Anti-aging rubber composition for automobile parts |
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- 2019-12-21 CN CN201911332002.XA patent/CN111234335A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980068A (en) * | 2021-03-08 | 2021-06-18 | 上海瀛宏汽车配件有限公司 | Anti-aging rubber composition for automobile parts |
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Application publication date: 20200605 |