CN102174230A - Preparation method of flex-resistant high-airtight rubber material of vacuum diaphragm - Google Patents
Preparation method of flex-resistant high-airtight rubber material of vacuum diaphragm Download PDFInfo
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- CN102174230A CN102174230A CN 201110054874 CN201110054874A CN102174230A CN 102174230 A CN102174230 A CN 102174230A CN 201110054874 CN201110054874 CN 201110054874 CN 201110054874 A CN201110054874 A CN 201110054874A CN 102174230 A CN102174230 A CN 102174230A
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- vacuum diaphragm
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Abstract
The invention discloses a preparation method of a flex-resistant high-airtight rubber material of a vacuum diaphragm, which comprises a proportioning process and a preparing process. The invention adopts the technical scheme that a mixing formula combining ethylene-propylene-diene rubber and halogenated butyl rubber is matched with a corresponding preparation process, thereby overcoming the defects of poor flex resistance and poor air tightness in the prior art. By using the preparation method of the flex-resistant high-airtight rubber material of a vacuum diaphragm, the prepared rubber material which has the advantages of high flex resistance, high fatigue resistance and high air tightness enables the flex resistance and air tightness of a rubber vacuum diaphragm product of an air conditioner throttle of an automobile to be improved.
Description
Technical field
The present invention relates to a kind of preparation of elastomeric material, specifically be meant to be used to make automobile air-conditioning throttle rubber vacuum diaphragm, possess a kind of anti-preparation method who subdues high airtight vacuum diaphragm elastomeric material of high anti-flexing fatigue, high-air-tightness.
Background technology
The rubber vacuum diaphragm of automobile air-conditioning throttle requires to possess high anti-flexing fatigue, high-air-tightness, the employing terpolymer EP rubber of prior art is made rubber vacuum diaphragm, terpolymer EP rubber has ozone resistance, the advantage of thermotolerance and chemical-resistant stability, but the shortcoming that has flexible resistance and poor air-tightness, through high low temperature, flexing fatigue, after the weather resistance round-robin test, standard-required allows the vacuum tightness drop-out value to be not more than 6.8kPa, and the rubber vacuum diaphragm-operated that terpolymer EP rubber is made actual measurement drop-out value is 12.7kPa, vacuum leak occurs, cause automative air conditioning that the fault that can not open or close takes place; Therefore, prior art exists flexible resistance and poor air-tightness problems and shortcomings.
Summary of the invention
Problems and shortcomings at above-mentioned prior art existence, the present invention adopts the mixing formula of terpolymer EP rubber and halogenated butyl rubber and usefulness, supporting technical scheme with corresponding preparation technology, a kind of anti-preparation method who subdues high airtight vacuum diaphragm elastomeric material is provided, the elastomeric material that is intended to prepare high anti-flexing fatigue, high-air-tightness makes the rubber vacuum diaphragm sheet articles of automobile air-conditioning throttle, reaches to improve flexible resistance and bubble-tight purpose.
The object of the present invention is achieved like this: a kind of anti-preparation method who subdues high airtight vacuum diaphragm elastomeric material, comprise prescription, preparation technology, wherein:
Described prescription is rubber raw materials: halogenated butyl rubber, 24.3%; Terpolymer EP rubber 34.25%;
Promoting agent: zinc oxide 4.3%;
Releasing agent: hard ester acid 0.65%;
First part's promotor: N-cyclohexyl-2-[4-morpholinodithio base sulphenamide, 0.22%; Glycol dimercaptoacetate, 0.35%; The 2-benzothiazolyl mercaptan, 0.22%;
Second section promotor: tetramethyl-thiuram disulfide, 0.26%;
Anti-aging agent: N-Phenyl beta naphthylamine, 0.13%;
Separant: paraffin, 0.44%;
Vulcanizing agent: sulphur, 0.2%;
Strengthening agent: the uncontamination height is stretched semi-reinforcing furnace black, 3.8% surely; Low structure fast extruding furnace black, 12.3%; High abrasion furnace black(HAF), 3.8%;
Weighting agent: light calcium carbonate, 7.0%;
Softening agent: machine oil 2.6%, methyl-silicone oil 0.88%, transformer oil 4.3%;
The prescription unit is weight percentage;
Described preparation technology for plasticate, mixing;
Plasticate for,
Step 1, adjustment Banbury mixer temperature: 100 ℃, rotating speed: 32 rev/mins, the rubber raw materials in will filling a prescription drops into and carries out the banburying mixing in the Banbury mixer, and banburying 8 minutes by the shearing of Banbury mixer roller, obtains compound rubbers with two kinds of rubber mix;
Step 2, compound rubber is dropped into mill, roll spacing is transferred to 1～1.5 millimeter, 60～80 ℃ of roller temperature, thin-pass are plasticated 10 times, and thin-pass is plasticated in the process with the method for triangle bag, pillow bag, clot, makes compound rubber become broken-(down)rubber by plasticating;
Mixingly be,
Step 1, broken-(down)rubber is dropped into banburying in the Banbury mixer, 60～80 ℃ of roller temperature, 3～4 minutes time;
Promoting agent, releasing agent, anti-aging agent, separant, strengthening agent, weighting agent, softening agent, first part's promotor in step 2, the adding prescription, banburying mixes, 70～85 ℃ of roller temperature, 3 minutes time;
Vulcanizing agent and second section promotor in step 3, the adding prescription, banburying mixes, and 70～90 ℃ of roller temperature, obtain the banburying compound at 1～2 minute time;
Step 4, thin-pass in the mill of banburying compound input is mixing, roll spacing transfers to 1～2 millimeter, 60～80 ℃ of roller temperature, play the triangle bag mixing three times, 5 millimeters slices are transferred in roll spacing, left standstill slaking 4～16 hours, what promptly obtain to satisfy the requirement of vacuum diaphragm chip technology anti-ly subdues high gastight elastomeric material, for making the use of automobile air-conditioning throttle rubber vacuum diaphragm sheet articles.
With the anti-preparation method who subdues high airtight vacuum diaphragm elastomeric material of the present invention, the anti-vacuum diaphragm of subduing high airtight elastomeric material manufacturing of preparation, detection through every physical strength and physical and chemical index, all meet GB/T531, GB/T528, GB/T1690, GB/T3512, GB/T7762 national standard, and every technical indicator of vacuum diaphragm KCO-OJT120 standard.
The condition of the high low temperature endurance test of standard is:
The vacuum-actuated cylinder of 1 grade of stroke: 24000 times 82 ℃;
The vacuum-actuated cylinder of 2 grades of strokes: 10 * 10
3Inferior 24 ℃;
10 * 10
3Inferior 82.2 ℃;
10 * 10
3Inferior 24 ℃;
2500 times-40 ℃;
Cycle frequency 4 times/minute;
After the gentle endurance test of height, carry out the vacuum tightness inspection for leakage again, vacuum tightness 61kPa, 10 minutes time; The standard index value is to allow vacuum tightness reduction value to be not more than 6.8kPa; The actual measurement vacuum tightness reduction value of goods of the present invention is 1.7～4.2kPa.
Above-mentioned, the present invention adopts the mixing formula of terpolymer EP rubber and halogenated butyl rubber and usefulness, supporting technical scheme with corresponding preparation technology, overcome prior art and had flexible resistance and poor air-tightness problems and shortcomings, a kind of anti-preparation method who subdues high airtight vacuum diaphragm elastomeric material who is provided, the high anti-flexing fatigue of preparation, the elastomeric material of high-air-tightness make the rubber vacuum diaphragm sheet articles of automobile air-conditioning throttle, have reached raising flexible resistance and bubble-tight purpose.
The embodiment explanation
Below by specific embodiment to the anti-preparation method who subdues high airtight vacuum diaphragm elastomeric material of the present invention, be described in further detail, the those skilled in the art can make with reference to the prescription of embodiment and preparation method and anti-ly subdue high airtight vacuum diaphragm elastomeric material, but should not be construed as any limitation of the invention.
Embodiment
Embodiment
The name of an article: anti-ly subdue high airtight vacuum diaphragm elastomeric material
Prescription: the prescription unit is weight percentage
Rubber raw materials: halogenated butyl rubber, 24.3%; Terpolymer EP rubber 34.25%;
Promoting agent: zinc oxide 4.3%;
Releasing agent: hard ester acid 0.65%;
First part's promotor: N-cyclohexyl-2-[4-morpholinodithio base sulphenamide, 0.22%; Glycol dimercaptoacetate, 0.35%; The 2-benzothiazolyl mercaptan, 0.22%;
Second section promotor: tetramethyl-thiuram disulfide, 0.26%;
Anti-aging agent: N-Phenyl beta naphthylamine, 0.13%;
Separant: paraffin, 0.44%;
Vulcanizing agent: sulphur, 0.2%;
Strengthening agent: the uncontamination height is stretched semi-reinforcing furnace black, 3.8% surely; Low structure fast extruding furnace black, 12.3%; High abrasion furnace black(HAF), 3.8%;
Weighting agent: light calcium carbonate, 7.0%;
Softening agent: machine oil 2.6%, methyl-silicone oil 0.88%, transformer oil 4.3%;
Preparation
Preparation condition, equipment
Ambient pressure a: normal atmosphere;
Envrionment temperature: room temperature;
Preparation equipment: mill in 16 o'clock, 35L adding pressure type Banbury mixer;
Preparation technology's flow process: plasticate, mixing;
Flow process one, plasticate
Step 1, adjustment Banbury mixer temperature: 100 ℃, rotating speed: 32 rev/mins, the rubber raw materials in will filling a prescription drops into and carries out the banburying mixing in the Banbury mixer, and banburying 8 minutes by the shearing of Banbury mixer roller, obtains compound rubbers with two kinds of rubber mix;
Step 2, compound rubber is dropped into mill, roll spacing is transferred to 1～1.5 millimeter, 60～80 ℃ of roller temperature, thin-pass are plasticated 10 times, and thin-pass is plasticated in the process with the method for triangle bag, pillow bag, clot, makes compound rubber become broken-(down)rubber by plasticating;
Flow process two, mixing
Step 1, broken-(down)rubber is dropped into banburying in the Banbury mixer, 60～80 ℃ of roller temperature, 3～4 minutes time;
Promoting agent, releasing agent, anti-aging agent, separant, strengthening agent, weighting agent, softening agent, first part's promotor in step 2, the adding prescription, banburying mixes, 70～85 ℃ of roller temperature, 3 minutes time;
Vulcanizing agent and second section promotor in step 3, the adding prescription, banburying mixes, and 70～90 ℃ of roller temperature, obtain the banburying compound at 1～2 minute time;
Step 4, thin-pass in the mill of banburying compound input is mixing, roll spacing transfers to 1～2 millimeter, 60～80 ℃ of roller temperature, play the triangle bag mixing three times, 5 millimeters slices are transferred in roll spacing, left standstill slaking 4～16 hours, and promptly obtained the anti-high airtight vacuum diaphragm elastomeric material of subduing, use for making automobile air-conditioning throttle rubber vacuum diaphragm sheet articles.
Claims (1)
1. anti-preparation method who subdues high airtight vacuum diaphragm elastomeric material, it is characterized in that: comprise prescription, preparation technology, described prescription is rubber raw materials: halogenated butyl rubber, 24.3%; Terpolymer EP rubber 34.25%;
Promoting agent: zinc oxide 4.3%;
Releasing agent: hard ester acid 0.65%;
First part's promotor: N-cyclohexyl-2-[4-morpholinodithio base sulphenamide, 0.22%; Glycol dimercaptoacetate, 0.35%; The 2-benzothiazolyl mercaptan, 0.22%;
Second section promotor: tetramethyl-thiuram disulfide, 0.26%;
Anti-aging agent: N-Phenyl beta naphthylamine, 0.13%;
Separant: paraffin, 0.44%;
Vulcanizing agent: sulphur, 0.2%;
Strengthening agent: the uncontamination height is stretched semi-reinforcing furnace black, 3.8% surely; Low structure fast extruding furnace black, 12.3%; High abrasion furnace black(HAF), 3.8%;
Weighting agent: light calcium carbonate, 7.0%;
Softening agent: machine oil 2.6%, methyl-silicone oil 0.88%, transformer oil 4.3%;
The prescription unit is weight percentage;
Described preparation technology for plasticate, mixing;
Plasticate to, step 1, adjust the Banbury mixer temperature: 100 ℃, rotating speed: 32 rev/mins, the rubber raw materials in will prescription drops into and carries out banburying in the Banbury mixer and mix, and banburying 8 minutes by the shearing of Banbury mixer roller, obtains compound rubbers with two kinds of rubber mix;
Step 2, compound rubber is dropped into mill, roll spacing is transferred to 1～1.5 millimeter, 60～80 ℃ of roller temperature, thin-pass are plasticated 10 times, and thin-pass is plasticated in the process with the method for triangle bag, pillow bag, clot, makes compound rubber become broken-(down)rubber by plasticating;
Mixingly be step 1, broken-(down)rubber to be dropped into banburying in the Banbury mixer, 60～80 ℃ of roller temperature, 3～4 minutes time;
Promoting agent, releasing agent, anti-aging agent, separant, strengthening agent, weighting agent, softening agent, first part's promotor in step 2, the adding prescription, banburying mixes, 70～85 ℃ of roller temperature, 3 minutes time;
Vulcanizing agent and second section promotor in step 3, the adding prescription, banburying mixes, and 70～90 ℃ of roller temperature, obtain the banburying compound at 1～2 minute time;
Step 4, thin-pass in the mill of banburying compound input is mixing, roll spacing transfers to 1～2 millimeter, 60～80 ℃ of roller temperature, play the triangle bag mixing three times, 5 millimeters slices are transferred in roll spacing, left standstill slaking 4～16 hours, what promptly obtain to satisfy the requirement of vacuum diaphragm chip technology anti-ly subdues high gastight elastomeric material, for making the use of automobile air-conditioning throttle rubber vacuum diaphragm sheet articles.
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| CN201110054874A CN102174230B (en) | 2011-02-25 | 2011-02-25 | Preparation method of flex-resistant high-airtight rubber material of vacuum diaphragm |
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| CN201110054874A CN102174230B (en) | 2011-02-25 | 2011-02-25 | Preparation method of flex-resistant high-airtight rubber material of vacuum diaphragm |
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| CN102174230B CN102174230B (en) | 2012-09-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942715A (en) * | 2012-11-06 | 2013-02-27 | 青岛欧美亚橡胶工业有限公司 | Material formula of specially made cord rubber for rubber air springs and production method |
| CN103214702A (en) * | 2013-05-23 | 2013-07-24 | 成都虹源橡塑有限责任公司 | Vacuum booster diaphragm |
| CN104194162A (en) * | 2014-08-20 | 2014-12-10 | 太仓荣南密封件科技有限公司 | EPDM (ethylene-propylene-diene monomer) rubber for air conditioners and preparation technique thereof |
| CN105524360A (en) * | 2016-01-29 | 2016-04-27 | 宁国市加能密封件有限公司 | Rubber diaphragm of electronic vacuum pump and preparation method of rubber diaphragm |
| CN105647025A (en) * | 2014-11-13 | 2016-06-08 | 德特威勒密封技术（安徽）有限公司 | Reaction rubber material used for car vacuum booster and preparation method thereof |
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| CN101451005A (en) * | 2007-11-30 | 2009-06-10 | 王极超 | Antishock insulation rubber member for high-tension cable |
| CN101821335A (en) * | 2007-10-11 | 2010-09-01 | 埃克森美孚化学专利公司 | Produce the efficient mixing process of composition for thermoplastic elastomer |
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2011
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| CN101821335A (en) * | 2007-10-11 | 2010-09-01 | 埃克森美孚化学专利公司 | Produce the efficient mixing process of composition for thermoplastic elastomer |
| US20100331452A1 (en) * | 2007-10-11 | 2010-12-30 | Exxonmobil Chemical Patents Inc. | Efficient mixing process for producing thermoplastic elastomer composition |
| CN101451005A (en) * | 2007-11-30 | 2009-06-10 | 王极超 | Antishock insulation rubber member for high-tension cable |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942715A (en) * | 2012-11-06 | 2013-02-27 | 青岛欧美亚橡胶工业有限公司 | Material formula of specially made cord rubber for rubber air springs and production method |
| CN103214702A (en) * | 2013-05-23 | 2013-07-24 | 成都虹源橡塑有限责任公司 | Vacuum booster diaphragm |
| CN103214702B (en) * | 2013-05-23 | 2015-03-04 | 成都虹源橡塑有限责任公司 | Vacuum booster diaphragm |
| CN104194162A (en) * | 2014-08-20 | 2014-12-10 | 太仓荣南密封件科技有限公司 | EPDM (ethylene-propylene-diene monomer) rubber for air conditioners and preparation technique thereof |
| CN105647025A (en) * | 2014-11-13 | 2016-06-08 | 德特威勒密封技术（安徽）有限公司 | Reaction rubber material used for car vacuum booster and preparation method thereof |
| CN105524360A (en) * | 2016-01-29 | 2016-04-27 | 宁国市加能密封件有限公司 | Rubber diaphragm of electronic vacuum pump and preparation method of rubber diaphragm |
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|---|---|
| CN102174230B (en) | 2012-09-12 |
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