CN108976513A - A kind of rubber seal preparation method for automobile oil seal - Google Patents
A kind of rubber seal preparation method for automobile oil seal Download PDFInfo
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- CN108976513A CN108976513A CN201810811330.7A CN201810811330A CN108976513A CN 108976513 A CN108976513 A CN 108976513A CN 201810811330 A CN201810811330 A CN 201810811330A CN 108976513 A CN108976513 A CN 108976513A
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- added
- kneaded
- rubber
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- automobile oil
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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
- C08L9/02—Copolymers with acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- 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
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a kind of rubber seal preparation methods for automobile oil seal, include the following steps: to stir humic acid, sodium hydroxide solution, regulation system is in neutrality, nano-titanium dioxide, polyethylene glycol 400 stirring is added, sodium carboxymethylcellulose, epoxychloropropane stirring is added, filtering, washing, is dried to obtain prefabricated material；Nitrile rubber, polyurethane rubber, epoxidized soybean oil, tributyl 2-acetylcitrate, dioctyl terephthalate are kneaded, cooling, which continues to be kneaded, obtains mixing materials；Prefabricated material, powdered whiting, nano mica powder, stearic acid, antioxidant MB Z, antioxidant BLE are added into mixing materials to continue to be kneaded, sulphur, tetramethylthiuram monosulfide, divinyl oxide base benzothiazole sulfenamide, magnesia is added to continue to be kneaded, vulcanization obtains the rubber seal for automobile oil seal.The sealing effect of gained sealing element of the invention is good, and tensile strength and elongation at break are high.
Description
Technical field
The present invention relates to rubber seal technical field more particularly to a kind of rubber seal preparations for automobile oil seal
Method.
Background technique
Rubber seal is the core component in automobile oil seal, and the superiority and inferiority of sealing effect directly depends on rubber seal
Sealing performance.All the time stringent with rubber seal performance requirement due to automobile oil seal, nitrile rubber is widely used in
In various high temperature, resistance to oil environment, becomes automobile oil seal in recent years and focus on to develop a kind of sealing material promoted, at present nitrile rubber
The insufficient problems demand of sealing element sealing effect solves.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of rubber seal systems for automobile oil seal
The sealing effect of Preparation Method, gained sealing element is good, and tensile strength and elongation at break are high.
A kind of rubber seal preparation method for automobile oil seal proposed by the present invention, includes the following steps:
S1, humic acid, sodium hydroxide solution are stirred, regulation system is in neutrality, and nano-titanium dioxide, polyethylene glycol is added
400 stirrings are added sodium carboxymethylcellulose, epoxychloropropane stirring, filter, and washing is dried to obtain prefabricated material；
S2, by nitrile rubber, polyurethane rubber, epoxidized soybean oil, tributyl 2-acetylcitrate, dioctyl terephthalate
It is kneaded, cooling, which continues to be kneaded, obtains mixing materials；
S3, prefabricated material, powdered whiting, nano mica powder, stearic acid, antioxidant MB Z, anti-aging agent are added into mixing materials
BLE continues to be kneaded, and sulphur, tetramethylthiuram monosulfide, divinyl oxide base benzothiazole sulfenamide, magnesia is added and continues
It is kneaded, vulcanization obtains the rubber seal for automobile oil seal.
Preferably, in S1, concentration of sodium hydroxide solution 0.5-0.8mol/L, humic acid, sodium hydroxide solution, nanometer two
Titanium oxide, polyethylene glycol 400, sodium carboxymethylcellulose, epoxychloropropane weight ratio be 20-30:80-120:25-45:1-3:
1-2:2-4.
Preferably, in S1, humic acid, sodium hydroxide solution are stirred into 2-4h, whipping temp is 70-90 DEG C, regulation system
It is in neutrality, nano-titanium dioxide is added, polyethylene glycol 400 stirs 10-20min, mixing speed 2000-2600r/min, addition
Sodium carboxymethylcellulose, epoxychloropropane stir 40-80min, and whipping temp is 90-96 DEG C, is filtered, and washing is dried to obtain pre-
System material.
Preferably, in S2, nitrile rubber, polyurethane rubber, epoxidized soybean oil, tributyl 2-acetylcitrate, terephthaldehyde
The weight ratio of dioctyl phthalate is 20-160:60-100:1-2:1-2:2-4.
Preferably, in S2, by nitrile rubber, polyurethane rubber, epoxidized soybean oil, tributyl 2-acetylcitrate, to benzene two
Formic acid dioctyl ester is kneaded 1-4min, and melting temperature is 145-162 DEG C, is cooled to 110-118 DEG C and continues to be kneaded 30-60s, is mixed
Refining material.
Preferably, in S3, mixing materials, powdered whiting, nano mica powder, stearic acid, antioxidant MB Z, are prevented always prefabricated material
Agent BLE, sulphur, tetramethylthiuram monosulfide, divinyl oxide base benzothiazole sulfenamide, magnesia weight ratio be 180-
260:30-50:20-30:20-30:0.4-1:1-2:0.4-0.8:0.8-1.6:0.6-1.4: 1-1.4:0.2-0.4.
Preferably, in S3, prefabricated material, powdered whiting, nano mica powder, stearic acid, anti-aging agent are added into mixing materials
MBZ, antioxidant BLE continue to be kneaded 2-7min, and sulphur, tetramethylthiuram monosulfide, divinyl oxide base benzothiazole is added
Sulfonamide, magnesia continue to be kneaded 1-3min, and 145-168 DEG C of vulcanization 5-14s obtains the rubber seal for automobile oil seal.
Deformation when gained sealing element of the invention is squeezed, guarantees effective leakproofness of automobile oil seal, the table body when being shaken
The vibration being subject to is through overdamping, and compression strength is high, tearing-resistant performance is good, has not only protected the key part of automobile oil seal, but also
The sealing that can restore guarantee component by elasticity avoids the damage of biggish vibration and impact to mechanical part.
In S1 of the present invention, humic acid be rich in hydroxyl, carboxyl isopolarity functional group, can strong adsorption in nano-titanium dioxide table
Face is crosslinked under the action of polyethylene glycol 400 by epoxychloropropane, and tensile strength is high, and sealing effect is good；In S2, use
Nitrile rubber, polyurethane rubber compounding dissolve each other each other under tributyl 2-acetylcitrate, dioctyl terephthalate cooperation
Property it is good, not only vulcanization time is short, high production efficiency, and makes that sealing element tensile strength is high obtained by the present invention, elongation at break is good,
It is acted synergistically using epoxidized soybean oil, the elasticity of sealing element obtained by the present invention at high temperature can be improved, sealing effect is fabulous；S3
In, prefabricated material is compounded with nitrile rubber, polyurethane rubber, and mutual degree of scatter is high under the action of epoxidized soybean oil, mutually
Dissolubility is good, so that sealing element obtained by the present invention is had excellent tensile property and breaking strength, sealing effect is good, and tensile strength reaches
26.2 ± 3MPa, elongation at break are 272.8 ± 10%；Prefabricated material is compounded with powdered whiting, nano mica powder, is divided each other
It dissipating uniformly, mechanical property is good, does not crack, and wear-resistant, performance is stablized,
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of rubber seal preparation method for automobile oil seal, includes the following steps:
It S1, is that 0.5mol/L sodium hydroxide solution stirs 4h by 20kg humic acid, 120kg concentration, whipping temp is 70 DEG C,
Regulation system is in neutrality, and 45kg nano-titanium dioxide is added, 1kg polyethylene glycol 400 stirs 20min, mixing speed 2000r/
2kg sodium carboxymethylcellulose, 2kg epoxychloropropane stirring 80min is added in min, and whipping temp is 90 DEG C, filters, washs, does
It is dry to obtain prefabricated material；
S2, by 160kg nitrile rubber, 60kg polyurethane rubber, 2kg epoxidized soybean oil, 1kg tributyl 2-acetylcitrate,
4kg dioctyl terephthalate is kneaded 1min, and melting temperature is 162 DEG C, is cooled to 110 DEG C and continues to be kneaded 60s, is kneaded
Material；
S3, the prefabricated material of 50kg, 20kg powdered whiting, 30kg nano mica powder, 0.4kg are added into 180kg mixing materials
Stearic acid, 2kg antioxidant MB Z, 0.4kg antioxidant BLE continue to be kneaded 7min, 0.8kg sulphur are added, 1.4kg mono- vulcanizes tetramethyl
Base thiuram, 1kg divinyl oxide base benzothiazole sulfenamide, 0.4kg magnesia continue to be kneaded 1min, and 168 DEG C of vulcanization 5s are obtained
To the rubber seal for automobile oil seal.
Embodiment 2
A kind of rubber seal preparation method for automobile oil seal, includes the following steps:
It S1, is that 0.8mol/L sodium hydroxide solution stirs 2h by 30kg humic acid, 80kg concentration, whipping temp is 90 DEG C,
Regulation system is in neutrality, and 25kg nano-titanium dioxide is added, 3kg polyethylene glycol 400 stirs 10min, mixing speed 2600r/
1kg sodium carboxymethylcellulose, 4kg epoxychloropropane stirring 40min is added in min, and whipping temp is 96 DEG C, filters, washs, does
It is dry to obtain prefabricated material；
S2, by 120kg nitrile rubber, 100kg polyurethane rubber, 1kg epoxidized soybean oil, 2kg tributyl 2-acetylcitrate,
2kg dioctyl terephthalate is kneaded 4min, and melting temperature is 145 DEG C, is cooled to 118 DEG C and continues to be kneaded 30s, is kneaded
Material；
S3, into 260kg mixing materials, the prefabricated material of addition 30kg, 30kg powdered whiting, 20kg nano mica powder, 1kg are hard
Resin acid, 1kg antioxidant MB Z, 0.8kg antioxidant BLE continue to be kneaded 2min, 1.6kg sulphur are added, 0.6kg mono- vulcanizes tetramethyl
Thiuram, 1.4kg divinyl oxide base benzothiazole sulfenamide, 0.2kg magnesia continue to be kneaded 3min, 145 DEG C of vulcanization 14s,
Obtain the rubber seal for automobile oil seal.
Embodiment 3
A kind of rubber seal preparation method for automobile oil seal, includes the following steps:
It S1, is 0.6mol/L sodium hydroxide solution stirring 3.5h, whipping temp 75 by 22kg humic acid, 110kg concentration
DEG C, regulation system is in neutrality, and 40kg nano-titanium dioxide, 1.5kg polyethylene glycol 400 stirring 18min is added, and mixing speed is
1.8kg sodium carboxymethylcellulose, 2.5kg epoxychloropropane stirring 70min is added in 2200r/min, and whipping temp is 92 DEG C, mistake
Filter, washing, is dried to obtain prefabricated material；
S2, by 150kg nitrile rubber, 70kg polyurethane rubber, 1.8kg epoxidized soybean oil, three fourth of 1.3kg acetyl tributyl citrate
Ester, 3.5kg dioctyl terephthalate are kneaded 2min, and melting temperature is 160 DEG C, are cooled to 112 DEG C and continue to be kneaded 50s, obtain
Mixing materials；
S3, the prefabricated material of 45kg, 22kg powdered whiting, 27kg nano mica powder, 0.6kg are added into 200kg mixing materials
Stearic acid, 1.8kg antioxidant MB Z, 0.5kg antioxidant BLE continue to be kneaded 5min, 1kg sulphur are added, 1.2kg mono- vulcanizes tetramethyl
Base thiuram, 1.1kg divinyl oxide base benzothiazole sulfenamide, 0.35kg magnesia continue to be kneaded 1.5min, 160 DEG C of vulcanizations
8s obtains the rubber seal for automobile oil seal.
Embodiment 4
A kind of rubber seal preparation method for automobile oil seal, includes the following steps:
It S1, is 0.7mol/L sodium hydroxide solution stirring 2.5h, whipping temp 85 by 28kg humic acid, 90kg concentration
DEG C, regulation system is in neutrality, and 30kg nano-titanium dioxide, 2.5kg polyethylene glycol 400 stirring 12min is added, and mixing speed is
1.2kg sodium carboxymethylcellulose, 3.5kg epoxychloropropane stirring 50min is added in 2400r/min, and whipping temp is 94 DEG C, mistake
Filter, washing, is dried to obtain prefabricated material；
S2, by 130kg nitrile rubber, 90kg polyurethane rubber, 1.2kg epoxidized soybean oil, three fourth of 1.7kg acetyl tributyl citrate
Ester, 2.5kg dioctyl terephthalate are kneaded 3min, and melting temperature is 150 DEG C, are cooled to 116 DEG C and continue to be kneaded 40s, obtain
Mixing materials；
S3, the prefabricated material of 35kg, 28kg powdered whiting, 23kg nano mica powder, 0.8kg are added into 240kg mixing materials
Stearic acid, 1.2kg antioxidant MB Z, 0.7kg antioxidant BLE continue to be kneaded 3min, and 1.4kg sulphur, the vulcanization of 0.8kg mono- four is added
Methyl thiuram, 1.3kg divinyl oxide base benzothiazole sulfenamide, 0.25kg magnesia continue to be kneaded 2.5min, 150 DEG C of sulphur
Change 12s, obtains the rubber seal for automobile oil seal.
Embodiment 5
A kind of rubber seal preparation method for automobile oil seal, includes the following steps:
It S1, is 0.65mol/L sodium hydroxide solution stirring 3h, whipping temp 80 by 25kg humic acid, 100kg concentration
DEG C, regulation system is in neutrality, and 35kg nano-titanium dioxide, 2kg polyethylene glycol 400 stirring 15min is added, and mixing speed is
1.5kg sodium carboxymethylcellulose, 3kg epoxychloropropane stirring 60min is added in 2300r/min, and whipping temp is 93 DEG C, filtering,
Washing, is dried to obtain prefabricated material；
S2, by 140kg nitrile rubber, 80kg polyurethane rubber, 1.5kg epoxidized soybean oil, three fourth of 1.5kg acetyl tributyl citrate
Ester, 3kg dioctyl terephthalate are kneaded 2.5min, and melting temperature is 155 DEG C, are cooled to 114 DEG C and continue to be kneaded 45s, obtain
Mixing materials；
S3, the prefabricated material of 40kg, 25kg powdered whiting, 25kg nano mica powder, 0.7kg are added into 220kg mixing materials
Stearic acid, 1.5kg antioxidant MB Z, 0.6kg antioxidant BLE continue to be kneaded 4min, 1.2kg sulphur are added, 1kg mono- vulcanizes tetramethyl
Base thiuram, 1.2kg divinyl oxide base benzothiazole sulfenamide, 0.3kg magnesia continue to be kneaded 2min, 155 DEG C of vulcanizations
10s obtains the rubber seal for automobile oil seal.
Rubber seal obtained by embodiment 5 for automobile oil seal is after 150 DEG C × 336h hot air aging, firmness change
0~+8, strength > 12, elongation > 180%；After 150 DEG C × 504h impregnates in coolant liquid, firmness change -5~+5, strength
> 12, elongation > 300%, weight change 0~+3；Compression set < 50% after 150 DEG C × hot air aging for 24 hours.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of rubber seal preparation method for automobile oil seal, which comprises the steps of:
S1, humic acid, sodium hydroxide solution are stirred, regulation system is in neutrality, and nano-titanium dioxide, polyethylene glycol 400 is added
Stirring is added sodium carboxymethylcellulose, epoxychloropropane stirring, filters, and washing is dried to obtain prefabricated material；
S2, nitrile rubber, polyurethane rubber, epoxidized soybean oil, tributyl 2-acetylcitrate, dioctyl terephthalate are mixed
Refining, cooling, which continues to be kneaded, obtains mixing materials；
S3, prefabricated material, powdered whiting, nano mica powder, stearic acid, antioxidant MB Z, antioxidant BLE are added into mixing materials
Continue to be kneaded, sulphur, tetramethylthiuram monosulfide, divinyl oxide base benzothiazole sulfenamide, magnesia is added and continues to mix
Refining, vulcanization obtain the rubber seal for automobile oil seal.
2. being used for the rubber seal preparation method of automobile oil seal according to claim 1, which is characterized in that in S1, hydrogen-oxygen
Change sodium solution concentration is 0.5-0.8mol/L, humic acid, sodium hydroxide solution, nano-titanium dioxide, polyethylene glycol 400, carboxylic first
Base sodium cellulosate, epoxychloropropane weight ratio be 20-30:80-120:25-45:1-3:1-2:2-4.
3. the rubber seal preparation method according to claim 1 or claim 2 for automobile oil seal, which is characterized in that, will in S1
Humic acid, sodium hydroxide solution stir 2-4h, and whipping temp is 70-90 DEG C, and regulation system is in neutrality, and nanometer titanium dioxide is added
Titanium, polyethylene glycol 400 stir 10-20min, mixing speed 2000-2600r/min, and sodium carboxymethylcellulose, epoxy chlorine is added
Propane stirs 40-80min, and whipping temp is 90-96 DEG C, is filtered, and washing is dried to obtain prefabricated material.
4. the rubber seal preparation method of automobile oil seal is used for described in -3 any one according to claim 1, which is characterized in that S2
In, nitrile rubber, polyurethane rubber, epoxidized soybean oil, tributyl 2-acetylcitrate, dioctyl terephthalate weight ratio be
20-160:60-100:1-2:1-2:2-4.
5. the rubber seal preparation method of automobile oil seal is used for described in -4 any one according to claim 1, which is characterized in that S2
In, nitrile rubber, polyurethane rubber, epoxidized soybean oil, tributyl 2-acetylcitrate, dioctyl terephthalate are kneaded 1-
4min, melting temperature are 145-162 DEG C, are cooled to 110-118 DEG C and continue to be kneaded 30-60s, obtain mixing materials.
6. the rubber seal preparation method of automobile oil seal is used for described in -5 any one according to claim 1, which is characterized in that S3
In, mixing materials, prefabricated material, powdered whiting, nano mica powder, stearic acid, antioxidant MB Z, antioxidant BLE, sulphur, a vulcanization
Tetra methylthiuram, divinyl oxide base benzothiazole sulfenamide, magnesia weight ratio be 180-260:30-50:20-30:
20-30:0.4-1:1-2:0.4-0.8:0.8-1.6:0.6-1.4:1-1.4:0.2-0.4.
7. the rubber seal preparation method of automobile oil seal is used for described in -6 any one according to claim 1, which is characterized in that S3
In, prefabricated material, powdered whiting, nano mica powder, stearic acid, antioxidant MB Z, antioxidant BLE are added into mixing materials and continues
It is kneaded 2-7min, sulphur, tetramethylthiuram monosulfide, divinyl oxide base benzothiazole sulfenamide, magnesia is added and continues
It is kneaded 1-3min, 145-168 DEG C of vulcanization 5-14s obtains the rubber seal for automobile oil seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810811330.7A CN108976513A (en) | 2018-07-23 | 2018-07-23 | A kind of rubber seal preparation method for automobile oil seal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811330.7A CN108976513A (en) | 2018-07-23 | 2018-07-23 | A kind of rubber seal preparation method for automobile oil seal |
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| CN108976513A true CN108976513A (en) | 2018-12-11 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634188A (en) * | 2012-05-02 | 2012-08-15 | 邓舟 | Rubber-plastic ternary composite material applied to mechanical industry as well as preparation method and application thereof |
| CN103360641A (en) * | 2013-06-20 | 2013-10-23 | 安徽春辉仪表线缆集团有限公司 | Oil-resistant rubber sealing element |
| CN103665479A (en) * | 2013-11-15 | 2014-03-26 | 宁国市瑞普密封件有限公司 | Oil seal |
| CN104962071A (en) * | 2015-07-25 | 2015-10-07 | 长泰鑫润橡塑有限公司 | Sealing rubber ring |
-
2018
- 2018-07-23 CN CN201810811330.7A patent/CN108976513A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634188A (en) * | 2012-05-02 | 2012-08-15 | 邓舟 | Rubber-plastic ternary composite material applied to mechanical industry as well as preparation method and application thereof |
| CN103360641A (en) * | 2013-06-20 | 2013-10-23 | 安徽春辉仪表线缆集团有限公司 | Oil-resistant rubber sealing element |
| CN103665479A (en) * | 2013-11-15 | 2014-03-26 | 宁国市瑞普密封件有限公司 | Oil seal |
| CN104962071A (en) * | 2015-07-25 | 2015-10-07 | 长泰鑫润橡塑有限公司 | Sealing rubber ring |
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Application publication date: 20181211 |