CN106905617B - Long-life pipeline rubber seal - Google Patents
Long-life pipeline rubber seal Download PDFInfo
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- CN106905617B CN106905617B CN201710116194.5A CN201710116194A CN106905617B CN 106905617 B CN106905617 B CN 106905617B CN 201710116194 A CN201710116194 A CN 201710116194A CN 106905617 B CN106905617 B CN 106905617B
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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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
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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
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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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
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
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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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- Chemical & Material Sciences (AREA)
- 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 long-life pipeline rubber seal of the present invention, which includes the following ingredient by mass fraction：100-150 parts of ethylene propylene diene rubber, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 0.5-4 parts of anti-aging agent, 60-110 parts of filler, 2-15 parts of vulcanizing agent and 0.2-8 parts of vulcanization aid.The design for rubber formulation of the present invention is reasonable, being kneaded according to above-mentioned each component into sizing material has the performances such as good sealing performance, good ageing-resistant performance and wear-resisting property, the long-life pipeline rubber seal developed according to said ratio reaches 102.3 on service life, can be good at the use that matches with ductile iron pipe.
Description
Technical field
The present invention relates to a kind of rubber compoundings, and in particular to a kind of long-life pipeline sealing ring for cast iron pipe is matched
Side.
Background technology
T-type sealing ring is also known as the effective rubber seal of spheroidal graphite cast-iron, is widely used in having for water delivery, gas transmission and other liquid
Pressure conveying, has become the preferred product of water supply industry.Rubber seal requires in operating pressure and certain temperature range, answers
The features such as with good sealing performance, preferable resistance to corrosion is non-aging, and wear-resisting property is good and long working life.With
The development of science and technology, ductile iron pipe has substantially prolonged service life, and the service life is about 100 years or so.Match therewith
Up to the present it is 70 years that the T-type seal for pipe joints circle of set can reach longest service life, so researching and developing a kind of T-type of long-life
It is imperative that seal for pipe joints circle matches with ductile iron pipe.
Invention content
The purpose of the present invention is to provide a kind of long-life rubber pipeline that ageing-resistant, the long-life spheroidal graphite cast-iron is effective is close
Seal.
Technical solution is used by realizing above-mentioned purpose of the present invention：
A kind of long-life pipeline rubber seal of the present invention, wherein：The rubber seal includes pressing mass fraction below
Ingredient：100-150 parts of ethylene propylene diene rubber, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 0.5-4 parts of anti-aging agent,
60-110 parts of filler, 2-15 parts of vulcanizing agent and 0.2-8 parts of vulcanization aid；
A kind of long-life pipeline rubber seal of the present invention, wherein：The rubber seal includes pressing mass fraction below
Ingredient：150 parts of ethylene propylene diene rubber, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 0.5-2 parts of the first anti-aging agent,
0.5-2 parts of the second anti-aging agent, 60-80 parts of filler, 10-15 parts of vulcanizing agent and 0.2-0.5 parts of vulcanization aid, it is also
Including：10-15 parts of plasticizer；
A kind of long-life pipeline rubber seal of the present invention, wherein：The rubber seal includes pressing mass fraction below
Ingredient：150 parts of ethylene propylene diene rubber, 8 parts of zinc oxide, 1.5 parts of stearic acid, 1.5 parts of the first anti-aging agent, 1.5 parts
The second anti-aging agent, 70 parts of filler, 15 parts of plasticizer, 12 parts of vulcanizing agent and 0.3 part of vulcanization aid；
A kind of long-life pipeline rubber seal of the present invention, wherein：First anti-aging agent is 2,2,4- trimethyls-
1,2- dihyaroquinoline condensates；Second anti-aging agent is 2-mercaptobenzimidazole；The plasticizer is paraffin oil；Described fills out
It is carbon black to fill agent；The vulcanizing agent is cumyl peroxide, di-t-butyl peroxyhexane, benzoyl peroxide and crosses benzene first
One or more of tert-butyl acrylate；The vulcanization aid is sulphur；
A kind of long-life pipeline rubber seal of the present invention, wherein：The model 4465 of the ethylene propylene diene rubber；Institute
State the trade name Cabot N550 of carbon black；
A kind of long-life pipeline rubber seal of the present invention, wherein：The hardness of the long-life pipeline rubber seal
For 50 durometer levels；
A kind of long-life pipeline rubber seal of the present invention, wherein：The rubber seal includes pressing mass fraction below
Ingredient：100 parts of ethylene propylene diene rubber, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 1-3 parts of anti-aging agent, 80-110 parts
Filler, 2-4 parts of vulcanizing agent and 4-8 parts of vulcanization aid；
A kind of long-life pipeline rubber seal of the present invention, wherein：The rubber seal includes pressing mass fraction below
Ingredient：100 parts of ethylene propylene diene rubber, 5 parts of zinc oxide, 1 part of stearic acid, 3 parts of anti-aging agent, 100 parts of filler,
3.5 parts of vulcanizing agent and 5 parts of vulcanization aid；
A kind of long-life pipeline rubber seal of the present invention, wherein：The anti-aging agent is 2,2,4- trimethyls -1,2-
Dihyaroquinoline condensate；The filler is carbon black；The vulcanizing agent is cumyl peroxide, di-t-butyl peroxide
Change one or more of hexane, benzoyl peroxide and t-butyl perbenzoate, the vulcanization aid is methacrylic acid
Magnesium；
A kind of long-life pipeline rubber seal of the present invention, wherein：The model 4045 of the ethylene propylene diene rubber；Institute
State the trade name spray carbon black of carbon black；The hardness of the long-life pipeline rubber seal is 90 durometer levels.
The design for rubber formulation of the present invention is reasonable, and being kneaded according to above-mentioned each component into sizing material has good leakproofness
Can, the performances such as good ageing-resistant performance and wear-resisting property, according to the rubber seal that said ratio is developed can be good at
Ductile iron pipe matches use.
Description of the drawings
Fig. 1 is the survey report of the present invention
Specific implementation mode
Below by way of specific embodiment, specific embodiments of the present invention are further described in detail.
First embodiment
The long-life pipeline rubber seal of 50 durometer levels of the present invention is as follows according to the mass fraction：
1.5 parts of 8 parts of 150 parts of ethylene propylene diene rubber, zinc oxide, stearic acid, the first anti-aging agent of model 4465：2,2,4-
1.5 parts of trimethyl -1,2- dihyaroquinolines condensate, the second anti-aging agent：1.5 parts of 2-mercaptobenzimidazole, filler：Trade name
For 70 parts of carbon black, the plasticizer of Cabot N550：10 parts of paraffin oil, vulcanizing agent：Aoxidize 10 parts of diisopropylbenzene (DIPB) and vulcanization aid：Sulphur
0.3 part of sulphur.
The step of preparing above-mentioned long-life pipeline rubber seal be：The first step prepares sizing material：Ethylene propylene diene rubber is thrown
Enter and is kneaded into mixer；Zinc oxide, stearic acid, the first anti-aging agent and the second anti-aging agent are added thereto mixing 8 minutes again, so
1/2 carbon black addition is carried out after being kneaded uniformly afterwards, other 1/2 carbon black addition is added and is kneaded；Then again by paraffin oil
It is added after being kneaded uniformly, is eventually adding vulcanizing agent and vulcanization aid, the dumping when temperature is more than 160 DEG C；Second step vulcanizes：It will be upper
State institute
The sizing material of preparation is loaded into mold, is vulcanized on vulcanizing press, 160 DEG C of curing temperature, sulfide stress
For 10MPa, vulcanization time 30min.Following table A is the examining report of 50 hardness sizing materials.
| 7 | Compression set maximum % (- 10 DEG C of * 72h compression ratios 25%) | 40 | 32 | GB/T 7759.2-2014 |
| 8 | Compression stress relaxation maximum % (23 DEG C of * 7d compression ratios 25%) | 14 | 11 | GB/T 1685-2008 |
| 9 | (70 DEG C of * 7d) volume change maximum % in water | - 1~+8 | +0.4 | GB/T 1690-2010 |
| 10 | Resistance to ozone (50*10-8, 40 DEG C of * 48h, stretching is 20%) | No cracking | No cracking | GB/T 7762-2014 |
Table A
Second embodiment
Its constituent of 90 durometer levels is as follows as mass fraction：
1 part of 5 parts of 100 parts of ethylene propylene diene rubber, zinc oxide, stearic acid, the anti-aging agent of model 4045：2,2,4- front threes
3 parts of base -1,2- dihyaroquinoline condensate, filler：100 parts of the carbon black of trade name spraying, vulcanizing agent：Aoxidize diisopropylbenzene (DIPB)
3.5 parts, vulcanization aid：5 parts of magnesinm methacrylate.
The step of preparing above-mentioned long-life pipeline rubber seal be：The first step prepares sizing material：Ethylene propylene diene rubber is thrown
Enter and is kneaded into mixer；Again by zinc oxide, stearic acid, anti-aging agent and be added thereto mixing 8 minutes, then by 1/2 spraying
Carbon black addition carries out after being kneaded uniformly, adds other 1/2 spray carbon black addition and carries out after being kneaded uniformly；Paraffin oil is added to be kneaded
Uniformly, it is eventually adding vulcanizing agent and vulcanization aid, the dumping when temperature is more than 160 DEG C.Second step：Vulcanization will be above-mentioned prepared
Sizing material fills
It fills out in mold, is vulcanized on vulcanizing press, curing temperature is 160 DEG C, sulfide stress 10MPa, sulphur
The change time is 30min, and table B is 90 durometer level sizing material examining reports
| 8 | Compression stress relaxation maximum % (23 DEG C of * 7d compression ratios 25%) | 18 | 16 | GB/T 1685-2008 |
| 9 | (70 DEG C of * 7d) volume change maximum % in water | - 1~+8 | +0.6 | GB/T 1690-2010 |
| 10 | Resistance to ozone (50*10-8, 40 DEG C of * 48h, stretching is 10%) | No cracking | No cracking | GB/T 7762-2014 |
Table B
Above description is explanation of the invention, is not the restriction to invention, limited range of the present invention is referring to right
It is required that without prejudice to the spirit of the present invention, the present invention can make any type of modification.
Hereinafter long-life pipeline rubber of the national rubber seal products Quality Supervision and Inspection Center to research and development is entrusted for my company
The scanned copy of the sizing material aging life-span examining report of glue sealing ring, test result：It is calculated according to critical value 0.5,25 DEG C of aging
Service life is 102.3.
Claims (1)
1. a kind of long-life pipeline rubber seal, it is characterised in that：The rubber seal include it is following by mass fraction at
Point：Ethylene propylene diene rubber, 8 parts of zinc oxide, 1.5 parts of stearic acid, 1.5 parts of the 2,2,4- tri- of 150 parts of model 4465
Methyl-1, the first anti-aging agent of 2- dihyaroquinolines condensate, 1.5 parts of the second anti-aging agent of 2-mercaptobenzimidazole, 70 parts of quotient
Carbon black, 10 parts of paraffin oil, 10 parts of oxidation diisopropylbenzene (DIPB) and 0.3 part of sulphur, rubber that the name of an article is Cabot N550 are close
The hardness of seal is 50 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116194.5A CN106905617B (en) | 2017-03-01 | 2017-03-01 | Long-life pipeline rubber seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116194.5A CN106905617B (en) | 2017-03-01 | 2017-03-01 | Long-life pipeline rubber seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106905617A CN106905617A (en) | 2017-06-30 |
| CN106905617B true CN106905617B (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710116194.5A Active CN106905617B (en) | 2017-03-01 | 2017-03-01 | Long-life pipeline rubber seal |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110885558A (en) * | 2019-12-16 | 2020-03-17 | 苏州中可欣电子科技有限公司 | Rubber sealing ring material for long-life capacitor |
| CN112341721A (en) * | 2020-12-01 | 2021-02-09 | 际华三五一七橡胶制品有限公司 | Hard ethylene propylene diene monomer rubber material for sealing ring of water supply and drainage pipeline |
| CN114015166A (en) * | 2021-11-11 | 2022-02-08 | 台州市东电橡塑有限公司 | EPDM rubber foaming material and application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255021A (en) * | 2015-11-04 | 2016-01-20 | 四川大学 | High-intensity and low-compression-permanent-deformation rubber material and preparation method of high-intensity and low-compression permanent deformation rubber material |
-
2017
- 2017-03-01 CN CN201710116194.5A patent/CN106905617B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255021A (en) * | 2015-11-04 | 2016-01-20 | 四川大学 | High-intensity and low-compression-permanent-deformation rubber material and preparation method of high-intensity and low-compression permanent deformation rubber material |
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| CN106905617A (en) | 2017-06-30 |
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