CN102336933A - Preparation method of damping supporting rubber of automobile power assembly - Google Patents
Preparation method of damping supporting rubber of automobile power assembly Download PDFInfo
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- CN102336933A CN102336933A CN2011101983834A CN201110198383A CN102336933A CN 102336933 A CN102336933 A CN 102336933A CN 2011101983834 A CN2011101983834 A CN 2011101983834A CN 201110198383 A CN201110198383 A CN 201110198383A CN 102336933 A CN102336933 A CN 102336933A
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Abstract
The invention discloses a preparation method of a damping supporting rubber of an automobile power assembly, which comprises a formula and a preparation technology. The formula of a natural rubber and a vulcanization system consisting of sulphur, N-cyclohexyl-2-benzothiazole sulfonamide, dibenzothiazyl disulfide, tetramethylthiuram disulfide, bi-(1,5 pentylidene) thiuram hexasulfide and dithiomorpholine is adopted to improve the permanent compression deformation resistance and rebound resilience of materials, and the technical scheme of the corresponding preparation technology is matched to reduce the dynamic multiplying power of the damping supporting rubber material to 1.25-1.26. In the preparation method of the damping supporting rubber of the automobile power assembly, the damping supporting rubber material with lower dynamic multiplying power is prepared, so the purposes of further improving the rebound resilience, the permanent compression deformation resistance and the damping performance retention rate and prolonging the service life of the damping rubber supporting product of the automobile power assembly are achieved.
Description
Technical field
The present invention relates to a kind of preparation method of rubber, specifically be meant to be used for the supporting of automobile power assembly yielding rubber, have preparation method than a kind of automobile power assembly shock-absorption support rubber of the lower sound ratio of rigidity performance of existing elastomeric material.
Background technology
The sound ratio of rigidity is the ratio of dynamic stiffness with the quiet rigidity of same material, and the two ratio is tending towards 1, and the sound ratio of rigidity of perfect elastic material is 1; Elastomeric material is imperfect resilient material, and its sound ratio of rigidity is greater than 1, for elastomeric material; Sound rigidity ratio is low more, promptly is tending towards 1 more, means that the rebound resilience of elastomeric material is good more; Compression set is more little, and the damping performance conservation rate is high more, and work-ing life is long more; Therefore; For the yielding rubber goods; The moving multiplying power of yielding rubber material (being sound rigidity ratio) is to weigh rebound performance, incompressible tension set performance, damping performance conservation rate, the important technology index in work-ing life of yielding rubber goods; Therefore, pursuing lower moving multiplying power is the important goal of yielding rubber investigation of materials.
The national standard of moving multiplying power that prior art is used for the shock-absorption support elastomeric material of automobile power assembly requires to be≤1.4; Reality can reach 1.38; The development of promoting day by day along with automotive industry; The prior art existence needs further to improve rebound performance, incompressible tension set performance, damping performance conservation rate and the problem in work-ing life and the requirement of automobile power assembly shock-absorption support rubber,, needs further to reduce the requirement of the moving multiplying power index of shock-absorption support elastomeric material that is.
Summary of the invention
Problem and requirement to above-mentioned prior art existence; The present invention adopts tree elastomer and by sulphur, N cyclohexyl 2 benzothiazole sulfenamide; Dibenzothiazole disulfide, tetramethyl-thiuram disulfide, six sulfurations two (1; The 5-pentylidene) prescription of the vulcanization system of thiuram, dithio morpholine formation; Improving the incompressible tension set performance and the rebound performance of material, and supporting technical scheme, a kind of preparation method of automobile power assembly shock-absorption support rubber is provided with corresponding preparation technology; Be intended to through preparing the yielding rubber material of lower moving multiplying power, make automobile power assembly yielding rubber supporting goods reach further raising rebound performance, incompressible tension set performance, damping performance conservation rate and the purpose in work-ing life.
The objective of the invention is to realize like this: a kind of preparation method of automobile power assembly shock-absorption support rubber, comprise prescription, preparation technology, wherein:
Described prescription does,
Rubber raw materials: tree elastomer, 60-55%;
Promoting agent: Triple Pressed Stearic Acid, 0.5-0.7%; Zinc oxide, 3.5-4%;
Anti-aging agent: N-sec.-propyl-N '-diphenyl-para-phenylene diamine, 1-1.3%; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance, 1.5-2%;
Protective agent: Microcrystalline Wax, 2.8-3.5%;
Strengthening agent: extrude carbon black soon, 20%; Semi-reinforcing hydrocarbon black, 10-0%;
Tenderizer: Yellow Protopet 2A, 3-5%;
Vulcanizing agent: sulphur, 0.2-1.5%;
Promotor: N cyclohexyl 2 benzothiazole sulfenamide, 0.5-1%; Dibenzothiazole disulfide, 0.8-0.4%; Tetramethyl-thiuram disulfide, 0.1-0.2%; Two (pentamethylene) thiurams of six sulfurations, 0.5-0.1%; Dithio morpholine DTDM, 0.6-0.3%;
The prescription unit is weight percentage;
Described preparation technology is mixing;
One, mixer mixing
Step 1,
Rubber raw materials is dropped in the Banbury mixer, Banbury mixer water flowing cooling, control Banbury mixer working spaces temperature＜65 ℃, rotating speed: 25-35 rev/min, start Banbury mixer and plasticate, plasticate 60 seconds times spent; Afterwards, mixing through promoting agent, anti-aging agent, protective agent in the last subsidiary engine pipeline adding prescription of Banbury mixer, 60 seconds mixing times spent; Afterwards, mixing through strengthening agent, tenderizer continuation in the last subsidiary engine pipeline adding prescription of Banbury mixer, 120 seconds mixing times spent; Afterwards, Banbury mixer working spaces temperature is controlled at 130-140 ℃, cooling is left standstill in the binder removal discharging, obtains master batch, and is for use;
Step 2,
Master batch is dropped in the Banbury mixer; Banbury mixer water flowing cooling, control Banbury mixer working spaces temperature＜65 ℃, rotating speed: 25-35 rev/min; After shutting the Banbury mixer charging door; Last subsidiary engine pipeline through Banbury mixer adds vulcanizing agent, promotor in the prescription, starts mixer mixing, 120 seconds mixing times spent; Afterwards, Banbury mixer working spaces temperature is controlled at below 90 ℃, the binder removal discharging obtains rubber unvulcanizate;
Two, the thin pass-out sheet of mill
Rubber unvulcanizate is moved in the mill thin logical kneading, and the mill roll spacing transfers to the 1-2 millimeter, control roller temperature＜60 ℃; Play the triangle bag thin logical mixing three times, afterwards, roll spacing is transferred to 5 millimeters slices; Sheet stock is through the separant groove; Folding leaving standstill 8 hours-24 hours after the surface adhesion separant, obtains to be used for automobile power assembly shock-absorption support elastomeric material; Said separant is Zinic stearas or fatty acid soaps.
Beneficial effect
The moving multiplying power index of the shock-absorption support rubber item of processing with the elastomeric material of the present invention preparation can be reduced to 1.25-1.26, is lower than 1.38 of the moving multiplying power index of prior art.
Above-mentioned; The present invention adopts tree elastomer and by sulphur, N cyclohexyl 2 benzothiazole sulfenamide; Dibenzothiazole disulfide, tetramethyl-thiuram disulfide, six sulfurations two (1; The 5-pentylidene) prescription of the vulcanization system of thiuram, dithio morpholine formation is to improve the incompressible tension set performance and the rebound performance of material; And supporting technical scheme with corresponding preparation technology, the moving multiplying power of shock-absorption support elastomeric material is reduced to 1.25-1.26, the preparation method of a kind of automobile power assembly shock-absorption support rubber that is provided; Through preparing the shock-absorption support elastomeric material of lower moving multiplying power, make automobile power assembly yielding rubber supporting goods reach further raising rebound performance, incompressible tension set performance, damping performance conservation rate and the purpose in work-ing life.
The embodiment explanation
Below through specific embodiment the preparation method of a kind of automobile power assembly shock-absorption support rubber of the present invention is done further explain; The those skilled in the art can make moving multiplying power with reference to the prescription of embodiment and preparation method and be lower than the automobile power assembly shock-absorption support elastomeric material of prior art index, but should not be construed as any restriction of the present invention.
Embodiment
Embodiment one
The name of an article: automobile power assembly shock-absorption support elastomeric material (moving multiplying power: 1.25)
Prescription: the prescription unit is weight percentage;
Rubber raw materials: tree elastomer, 55%;
Promoting agent: Triple Pressed Stearic Acid, 0.5%; Zinc oxide, 3.5%;
Anti-aging agent: N-sec.-propyl-N '-diphenyl-para-phenylene diamine, 1%; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance, 1.5%;
Protective agent: Microcrystalline Wax, 2.8%;
Strengthening agent: extrude carbon black soon, 20%; Semi-reinforcing hydrocarbon black, 10%;
Tenderizer: Yellow Protopet 2A, 3%;
Vulcanizing agent: sulphur, 0.2%;
Promotor: N cyclohexyl 2 benzothiazole sulfenamide, 0.5%; Dibenzothiazole disulfide, 0.8%; Tetramethyl-thiuram disulfide, 0.1%; Two (pentamethylene) thiurams of six sulfurations, 0.5%; Dithio morpholine DTDM, 0.6%;
Preparation:
Preparation condition, equipment
Ambient pressure a: normal atmosphere;
Envrionment temperature: room temperature;
Preparation equipment: mill in 16 o'clock, 90L adding pressure type Banbury mixer;
Preparation technology: mixing;
One, mixer mixing
Step 1,
Rubber raw materials is dropped in the Banbury mixer, Banbury mixer water flowing cooling, control Banbury mixer working spaces temperature＜65 ℃, rotating speed: 25-35 rev/min, start Banbury mixer and plasticate, plasticate 60 seconds times spent; Afterwards, mixing through promoting agent, anti-aging agent, protective agent in the last subsidiary engine pipeline adding prescription of Banbury mixer, 60 seconds mixing times spent; Afterwards, mixing through strengthening agent, tenderizer continuation in the last subsidiary engine pipeline adding prescription of Banbury mixer, 120 seconds mixing times spent; Afterwards, Banbury mixer working spaces temperature is controlled at 130-140 ℃, cooling is left standstill in the binder removal discharging, obtains master batch, and is for use;
Step 2,
Master batch is dropped in the Banbury mixer; Banbury mixer water flowing cooling, control Banbury mixer working spaces temperature＜65 ℃, rotating speed: 25-35 rev/min; After shutting the Banbury mixer charging door; Last subsidiary engine pipeline through Banbury mixer adds vulcanizing agent, promotor in the prescription, starts mixer mixing, 120 seconds mixing times spent; Afterwards, Banbury mixer working spaces temperature is controlled at below 90 ℃, the binder removal discharging obtains rubber unvulcanizate;
Two, the thin pass-out sheet of mill
Rubber unvulcanizate is moved in the mill thin logical kneading, and the mill roll spacing transfers to the 1-2 millimeter, control roller temperature＜60 ℃; Play the triangle bag thin logical mixing three times, afterwards, roll spacing is transferred to 5 millimeters slices; Sheet stock is through the separant groove; Folding leaving standstill 8 hours-24 hours after the surface adhesion separant, obtains automobile power assembly shock-absorption support elastomeric material (moving multiplying power: 1.25); Said separant is Zinic stearas or fatty acid soaps.Test
The testing data of the automobile power assembly shock-absorption support rubber item that the shock-absorption support elastomeric material of annex 1, prior art is made is following:
Experiment condition:
Amplitude-730N-2200N, frequency 3.3Hz, 80 ℃ of temperature
Require: 1,000,000 flawlesses, quiet stiffness variation are less than 15%: tired 1,000,000 flawlesses of result, quiet stiffness variation 8%.
The testing data of annex 2, the automobile power assembly shock-absorption support rubber item made with the automobile power assembly shock-absorption support elastomeric material of the present invention preparation is following:
Experiment condition: amplitude-730N-2200N, frequency 3.3Hz, 80 ℃ of temperature
Require: 1,000,000 flawlesses, quiet stiffness variation are less than 15%: result: tired 1,000,000 flawlesses, quiet stiffness variation 5%.Tired 2,000,000 flawlesses of retrial, quiet stiffness variation 8%.
Conclusion: moving multiplying power index of the present invention is superior to the moving multiplying power index of prior art, and the durable property of antifatigue is also excellent more.
Claims (1)
1. the preparation method of an automobile power assembly shock-absorption support rubber is characterized in that: comprise prescription, preparation technology, described prescription does,
Rubber raw materials: tree elastomer, 60-55%;
Promoting agent: Triple Pressed Stearic Acid, 0.5-0.7%; Zinc oxide, 3.5-4%;
Anti-aging agent: N-sec.-propyl-N '-diphenyl-para-phenylene diamine, 1-1.3%; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance, 1.5-2%;
Protective agent: Microcrystalline Wax, 2.8-3.5%;
Strengthening agent: extrude carbon black soon, 20%; Semi-reinforcing hydrocarbon black, 10-0%;
Tenderizer: Yellow Protopet 2A, 3-5%;
Vulcanizing agent: sulphur, 0.2-1.5%;
Promotor: N cyclohexyl 2 benzothiazole sulfenamide, 0.5-1%; Dibenzothiazole disulfide, 0.8-0.4%; Tetramethyl-thiuram disulfide, 0.1-0.2%; Two (pentamethylene) thiurams of six sulfurations, 0.5-0.1%; Dithio morpholine DTDM, 0.6-0.3%;
The prescription unit is weight percentage;
Described preparation technology is mixing;
One, mixer mixing
Step 1,
Rubber raw materials is dropped in the Banbury mixer, Banbury mixer water flowing cooling, control Banbury mixer working spaces temperature＜65 ℃, rotating speed: 25-35 rev/min, start Banbury mixer and plasticate, plasticate 60 seconds times spent; Afterwards, mixing through promoting agent, anti-aging agent, protective agent in the last subsidiary engine pipeline adding prescription of Banbury mixer, 60 seconds mixing times spent; Afterwards, mixing through strengthening agent, tenderizer continuation in the last subsidiary engine pipeline adding prescription of Banbury mixer, 120 seconds mixing times spent; Afterwards, Banbury mixer working spaces temperature is controlled at 130-140 ℃, cooling is left standstill in the binder removal discharging, obtains master batch, and is for use;
Step 2,
Master batch is dropped in the Banbury mixer; Banbury mixer water flowing cooling, control Banbury mixer working spaces temperature＜65 ℃, rotating speed: 25-35 rev/min; After shutting the Banbury mixer charging door; Last subsidiary engine pipeline through Banbury mixer adds vulcanizing agent, promotor in the prescription, starts mixer mixing, 120 seconds mixing times spent; Afterwards, Banbury mixer working spaces temperature is controlled at below 90 ℃, the binder removal discharging obtains rubber unvulcanizate;
Two, the thin pass-out sheet of mill
Rubber unvulcanizate is moved in the mill thin logical kneading, and the mill roll spacing transfers to the 1-2 millimeter, control roller temperature＜60 ℃; Play the triangle bag thin logical mixing three times, afterwards, roll spacing is transferred to 5 millimeters slices; Sheet stock is through the separant groove; Folding leaving standstill 8 hours-24 hours after the surface adhesion separant, obtains to be used for automobile power assembly shock-absorption support elastomeric material; Said separant is Zinic stearas or fatty acid soaps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101983834A CN102336933A (en) | 2011-07-07 | 2011-07-07 | Preparation method of damping supporting rubber of automobile power assembly |
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| CN2011101983834A CN102336933A (en) | 2011-07-07 | 2011-07-07 | Preparation method of damping supporting rubber of automobile power assembly |
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| CN102336933A true CN102336933A (en) | 2012-02-01 |
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| CN2011101983834A Pending CN102336933A (en) | 2011-07-07 | 2011-07-07 | Preparation method of damping supporting rubber of automobile power assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250501A (en) * | 2017-12-26 | 2018-07-06 | 建新赵氏集团有限公司 | A kind of double damped coefficient rubber and preparation method thereof |
| CN109400979A (en) * | 2018-11-27 | 2019-03-01 | 山东华聚高分子材料有限公司 | A kind of high fatigue life rubber damping material and preparation method thereof |
| CN110385802A (en) * | 2019-07-30 | 2019-10-29 | 浙江创城汽车零部件有限公司 | A kind of production technology of vehicle environment protection type rubber product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864099A (en) * | 2010-06-09 | 2010-10-20 | 尤建义 | Preparation technology of high-insulation natural rubber material |
| CN101955598A (en) * | 2010-09-27 | 2011-01-26 | 上海众力汽车部件有限公司 | Rubber formula with low ratio of dynamic stiffness and static stiffness and preparation method thereof |
-
2011
- 2011-07-07 CN CN2011101983834A patent/CN102336933A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864099A (en) * | 2010-06-09 | 2010-10-20 | 尤建义 | Preparation technology of high-insulation natural rubber material |
| CN101955598A (en) * | 2010-09-27 | 2011-01-26 | 上海众力汽车部件有限公司 | Rubber formula with low ratio of dynamic stiffness and static stiffness and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250501A (en) * | 2017-12-26 | 2018-07-06 | 建新赵氏集团有限公司 | A kind of double damped coefficient rubber and preparation method thereof |
| CN109400979A (en) * | 2018-11-27 | 2019-03-01 | 山东华聚高分子材料有限公司 | A kind of high fatigue life rubber damping material and preparation method thereof |
| CN109400979B (en) * | 2018-11-27 | 2021-06-25 | 山东华聚高分子材料有限公司 | Rubber vibration damping material with long fatigue life and preparation method thereof |
| CN110385802A (en) * | 2019-07-30 | 2019-10-29 | 浙江创城汽车零部件有限公司 | A kind of production technology of vehicle environment protection type rubber product |
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Application publication date: 20120201 |