CN102174230B - 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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- CN102174230B CN102174230B CN201110054874A CN201110054874A CN102174230B CN 102174230 B CN102174230 B CN 102174230B CN 201110054874 A CN201110054874 A CN 201110054874A CN 201110054874 A CN201110054874 A CN 201110054874A CN 102174230 B CN102174230 B CN 102174230B
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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; Prior art adopts terpolymer EP rubber to make rubber vacuum diaphragm; Terpolymer EP rubber has the advantage of ozone resistance, thermotolerance and chemical-resistant stability, but has the shortcoming of flexible resistance and poor air-tightness, after high low temperature, flexing fatigue, 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, causes 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 to 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, and 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 and improves flexible resistance and bubble-tight purpose.
The objective of the invention is to realize 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-PBNA, 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, mix carrying out banburying in the input of the rubber raw materials in the prescription Banbury mixer, banburying 8 minutes through 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 logical plasticating 10 times with the method for triangle bag, pillow bag, clot, makes compound rubber become broken-(down)rubber through plasticating in the thin logical process of plasticating;
Mixingly do,
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, logical mixing with approaching in the mill of banburying compound input; Roll spacing transfers to 1～2 millimeter, and 60～80 ℃ of roller temperature are played 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, supplies to make automobile air-conditioning throttle rubber vacuum diaphragm sheet articles and uses.
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 each item physical strength and physical and chemical index; All meet GB/T531, GB/T528, GB/T1690, GB/T3512, GB/T7762 national standard, and each item 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 has overcome prior art and has 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 through specific embodiment to the anti-preparation method who subdues high airtight vacuum diaphragm elastomeric material of the present invention; Do further explain; 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 restriction of the present 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-PBNA, 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, mix carrying out banburying in the input of the rubber raw materials in the prescription Banbury mixer, banburying 8 minutes through 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 logical plasticating 10 times with the method for triangle bag, pillow bag, clot, makes compound rubber become broken-(down)rubber through plasticating in the thin logical process of 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, logical mixing with approaching in the mill of banburying compound input; Roll spacing transfers to 1～2 millimeter, and 60～80 ℃ of roller temperature are played 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, supply to make automobile air-conditioning throttle rubber vacuum diaphragm sheet articles and use.
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-PBNA, 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 and do, step 1, adjustment Banbury mixer temperature: 100 ℃, rotating speed: 32 rev/mins, the rubber raw materials in the prescription dropped into carry out banburying in the Banbury mixer and mix, banburying 8 minutes through 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 logical plasticating 10 times with the method for triangle bag, pillow bag, clot, makes compound rubber become broken-(down)rubber through plasticating in the thin logical process of 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, logical mixing with approaching in the mill of banburying compound input; Roll spacing transfers to 1～2 millimeter, and 60～80 ℃ of roller temperature are played 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, supplies to make automobile air-conditioning throttle rubber vacuum diaphragm sheet articles and uses.
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| Application Number | Priority Date | Filing Date | Title |
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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 true CN102174230B (en) | 2012-09-12 |
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Families Citing this family (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 |
| 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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| 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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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN101451005A (en) * | 2007-11-30 | 2009-06-10 | 王极超 | Antishock insulation rubber member for high-tension cable |
Non-Patent Citations (1)
| Title |
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| 钱寒东.溴化丁基橡胶性能研究.《世界橡胶工业》.2004,第31卷(第12期), * |
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