CN102993616A - Automobile gasket and preparation method thereof - Google Patents
Automobile gasket and preparation method thereof Download PDFInfo
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- CN102993616A CN102993616A CN2011102265107A CN201110226510A CN102993616A CN 102993616 A CN102993616 A CN 102993616A CN 2011102265107 A CN2011102265107 A CN 2011102265107A CN 201110226510 A CN201110226510 A CN 201110226510A CN 102993616 A CN102993616 A CN 102993616A
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Abstract
The invention discloses an automobile gasket and a preparation method thereof. The automobile gasket comprises the components of, by mass, 44.7-47.7% of acrylate rubber (ACM), 16.4-19.4% of carbon black, 1.6-4.6% of coumarone, 1-3% of potassium stearate, 0.3-3.3% of sodium stearate, 14.2-17.2% of calcium carbonate, 4.9-7.9% of petroleum, dibutyl, full-D, TT, and 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane. According to the invention, components of the automobile gasket are changed; acrylate rubber with good anti-aging performance is adopted as a main raw material, and coumarone with a tensile effect is added, such that the toughness of the rubber is good. Also, corresponding lubricant, vulcanization agent, and accelerant are used in combination, such that prepared automobile gaskets have the advantages of aging resistance, and good high-temperature resistance or low-temperature resistance. Therefore, automobile engine gasket working efficiency can be improved, and automobile engine service life can be prolonged.
Description
Technical field
The present invention relates to a kind of automobile sealing gasket and preparation method thereof, be specifically related to a kind of for automobile sealing gasket on the motor car engine and preparation method thereof.
Background technology
Gasket is widely used in the static seal of bonding surface of pipeline, housing of engineering machinery and diesel engine, fill up the roughness of part bonding surface with its recoverable deformation, cut off leakage channel, increase to reveal resistance, or bear the modes such as interior outside pressure is poor and prevent that flow media (gas, water coolant, lubricating oil, gear oil, hydraulic efficiency oil, braking fluid etc.) from revealing.Such as cylinder head, housing covef for timing gear, oil pan, oil injection pump side cover, the air inlet-outlet pipe of diesel engine, the gear shift cover in the engineering machinery chassis, steering wheel side cover, axle housing bonnet, final drive housing also have motor car engine etc.
At present, the normal terpolymer EP rubber (EPDM) that adopts is made the motor car engine gasket, but, in existing production technique, the engine gasket made from terpolymer EP rubber is under the engine continuous firing, the gasket of the type is more aging, high temperature resistant or resistance to low temperature is relatively poor, thus the performance of engine affected, reduce its working efficiency.
Therefore, a kind of low temperature resistant, resistance to elevated temperatures is higher, be difficult for aging, thereby can improve engine operation efficient, the automobile sealing gasket that prolongs its work-ing life is demanded urgently proposing.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of low temperature resistant, resistance to elevated temperatures is higher, be difficult for aging, thereby can improve engine operation efficient, the automobile sealing gasket that prolongs its work-ing life.
For achieving the above object, technical scheme of the present invention is as follows: a kind of automobile sealing gasket, be applicable on the motor car engine, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer (being called for short ACM) 44.7%-47.7%, carbon black 16.4%-19.4%, coumarone 1.6%-4.6%, potassium stearate 1%-3%, stearic acid sodium 0.3%-3.3%, calcium carbonate 14.2%-17.2%, oil 4.9%-7.9%, dibutylester 1.6%-4.6%, sufficient D are 0.2%-2.2%, TT is 0.02%-1.55%, two two or five 0.2%-2.2%.
Preferably, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 45%-47%, carbon black 17%-19 %, coumarone 2%-4%, potassium stearate 1.2%-2.5%, stearic acid sodium 1%-3%, calcium carbonate 15%-17%, oil 5.5%-7%, dibutylester 2%-4.5%, sufficient D are 0.4%-1.5%, TT is 0.03%-1%, two two or five 0.4%-1.5%.
Preferably, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 45.5%-47%, carbon black 17.5%-18.5%, coumarone 2.5%-3.5%, potassium stearate 1.4%-2%, stearic acid sodium 1.5%-2.5%, calcium carbonate 16%-17%, oil 6%-6.8%, dibutylester 4%-4.4%, sufficient D are 0.5%-1%, TT is 0.05%-0.5%, two two or five 0.7%-1.2%.
Preferably, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 46.2%, carbon black 17.9%, coumarone 3.1%, potassium stearate 1.5%, stearic acid sodium 1.8%, calcium carbonate 16.7%, oil 6.65%, dibutylester 4.3%, sufficient D are that 0.7%, TT is 0.25%, two two five 0.9%.
Preferably, described carbon black is carbon black 3600.
A kind of preparation method of automobile sealing gasket, concrete step comprises:
(1) according to each component of proportioning weighing;
(2) load weighted material is put in the mixing roll mixing, mixing time is 0.5-2 hour, and temperature is not higher than 100 ℃;
(3) above-mentioned mixing material is later put into slice in the mill, the work in-process that form are placed out naturally cooling on the horse, be 20-26 hour cooling time;
(4) will cool off later film and be put on the vulcanizer and vulcanize, temperature is controlled at 170 ℃-190 ℃, and curing time is 3-10 minute, obtains head product;
(5) head product is carried out post cure, curing temperature is 140 ℃-160 ℃, and curing time is 2-4 hour;
(6) product after the post cure is put into oven for drying, get the finished product.
By technique scheme, the beneficial effect of technical solution of the present invention is: described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer (being called for short ACM) 44.7%-47.7%, carbon black 16.4%-19.4%, coumarone 1.6%-4.6%, potassium stearate 1%-3%, stearic acid sodium 0.3%-3.3%, calcium carbonate 14.2%-17.2%, oil 4.9%-7.9%, dibutylester 1.6%-4.6%, sufficient D are 0.2%-2.2%, TT is 0.02%-1.55%, two two or five 0.2%-2.2%; By changing the component of described automobile sealing gasket, use resistance to deterioration preferably acrylic elastomer as main raw material, add again the coumarone with drawing effect, can so that the toughness of rubber is better, simultaneously, corresponding lubricant, vulcanizing agent, promotor be used in conjunction with together, so that the automobile sealing gasket of making is difficult for wearing out, high temperature resistant or resistance to low temperature is better, and then improve the working efficiency of motor car engine, prolong the work-ing life of engine.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention technology, the below will do to introduce simply to the accompanying drawing of required use in the embodiment technical description, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the preparation flow figure of a kind of automobile sealing gasket of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The invention provides a kind of low temperature resistant, resistance to elevated temperatures is higher, be difficult for aging, thereby can improve engine operation efficient, the automobile sealing gasket that prolongs its work-ing life.
Embodiment 1,
As shown in Figure 1, a kind of automobile sealing gasket is applicable on the motor car engine, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer (being called for short ACM) 47.7%, carbon black 19.4%, coumarone 4.6%, potassium stearate 1%, stearic acid sodium 3.3%, calcium carbonate 17.08%, oil 4.9%, dibutylester 1.6%, sufficient D are 0.2%, TT is 0.02%, two two five 0.2%.
In the technical program, acrylic elastomer has preferably ageing resistance; Coumarone and potassium stearate, sodium stearate also have the mutual coordinative role of calcium carbonate, produce good drawing effect; In this, the component oil is mainly as lubricant, and sufficient D and TT are as vulcanizing agent, and two 25 as promotor.
In the technique scheme, carbon black then adopts carbon black 3600 as raw material, certainly can also adopt the carbon black of other models, and concrete embodiment is determined on a case-by-case basis, and at this, the present invention does not do any restriction, can realize that the present invention is as main; Simultaneously, the oil of lubricate can also replace with paraffin in this technical scheme.
A kind of preparation method of automobile sealing gasket, concrete step comprises:
(1) according to each component of proportioning weighing;
(2) load weighted material is put in the mixing roll mixing, mixing time is 0.5 hour, and temperature is not higher than 100 ℃;
(3) above-mentioned mixing material is later put into slice in the mill, the work in-process that form are placed out naturally cooling on the horse, be 20 hours cooling time;
(4) will cool off later film and be put on the vulcanizer and vulcanize, temperature is controlled at 170 ℃ ℃, and curing time is 3 minutes, obtains head product;
(5) head product is carried out post cure, curing temperature is 140 ℃ ℃, and curing time is 2 hours;
(6) product after the post cure is put into oven for drying, get the finished product.
Adopt the beneficial effect of technical solution of the present invention to be: by changing the component of described automobile sealing gasket, use resistance to deterioration preferably acrylic elastomer as main raw material, add again the coumarone with drawing effect, can be so that the toughness of rubber be better, simultaneously, corresponding lubricant, vulcanizing agent, promotor are used in conjunction with together, so that the automobile sealing gasket of making is difficult for wearing out, high temperature resistant or resistance to low temperature is better, and then the working efficiency of raising motor car engine, the work-ing life of prolongation engine.
Embodiment 2,
All the other are same as the previously described embodiments, and difference is, a kind of automobile sealing gasket, be applicable on the motor car engine, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer (being called for short ACM) 44.7%, carbon black 17.75%, coumarone 1.6%, potassium stearate 3%, stearic acid sodium 0.3%, calcium carbonate 14.2%, oil 7.9%, dibutylester 4.6%, foot D is that 2.2%, TT is 1.55%, two two five 2.2%.
A kind of preparation method of automobile sealing gasket, concrete step comprises:
(1) according to each component of proportioning weighing;
(2) load weighted material is put in the mixing roll mixing, mixing time is 2 hours, and temperature is not higher than 100 ℃;
(3) above-mentioned mixing material is later put into slice in the mill, the work in-process that form are placed out naturally cooling on the horse, be 26 hours cooling time;
(4) will cool off later film and be put on the vulcanizer and vulcanize, temperature is controlled at 190 ℃, and curing time is 10 minutes, obtains head product;
(5) head product is carried out post cure, curing temperature is 160 ℃, and curing time is 4 hours;
(6) product after the post cure is put into oven for drying, get the finished product.
Embodiment 3,
All the other are same as the previously described embodiments, and difference is, a kind of automobile sealing gasket, be applicable on the motor car engine, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer (being called for short ACM) 47.7%, carbon black 16.4%, coumarone 3.5%, potassium stearate 3%, stearic acid sodium 0.5%, calcium carbonate 17.2%, oil 5%, dibutylester 2.5%, foot D is that 1%, TT is 1%, two two five 2.2%.
Embodiment 4,
All the other are same as the previously described embodiments, and difference is, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 47%, carbon black 19 %, coumarone 4%, potassium stearate 2.5%, stearic acid sodium 1.5%, calcium carbonate 15%, oil 5.67%, dibutylester 4.5%, foot D is that 0.4%, TT is 0.03%, two two five 0.4%.
Embodiment 5,
All the other are same as the previously described embodiments, and difference is, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 46.8%, carbon black 17%, coumarone 2%, potassium stearate 1.2%, stearic acid sodium 3%, calcium carbonate 17%, oil 7%, dibutylester 2%, foot D is that 1.5%, TT is 1%, two two five 1.5%.
Embodiment 6,
All the other are same as the previously described embodiments, and difference is, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 45%, carbon black 18 %, coumarone 4%, potassium stearate 2.5%, stearic acid sodium 1%, calcium carbonate 15.5%, oil 5.5%, dibutylester 4.5%, foot D is that 1.5%, TT is 1%, two two five 1.5%.
Embodiment 7,
All the other are same as the previously described embodiments, and difference is, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 45.5%, carbon black 18.5%, coumarone 3.5%, potassium stearate 2%, stearic acid sodium 2.45%, calcium carbonate 16%, oil 6.8%, dibutylester 4%, foot D is that 0.5%, TT is 0.05%, two two five 0.7%.
Embodiment 8,
All the other are same as the previously described embodiments, and difference is, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 47%, carbon black 17.5%, coumarone 2.5%, potassium stearate 1.4%, stearic acid sodium 1.5%, calcium carbonate 17%, oil 6%, dibutylester 4.4%, foot D is that 1%, TT is 0.5%, two two five 1.2%.
Embodiment 9,
All the other are same as the previously described embodiments, and difference is, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 46%, carbon black 18%, coumarone 3.4%, potassium stearate 1.5%, stearic acid sodium 2.5%, calcium carbonate 16.5%, oil 6%, dibutylester 4.4%, foot D is that 0.5%, TT is 0.5%, two two five 0.7%.
Embodiment 10,
All the other are same as the previously described embodiments, and difference is, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 46.2%, carbon black 17.9%, coumarone 3.1%, potassium stearate 1.5%, stearic acid sodium 1.8%, calcium carbonate 16.7%, oil 6.65%, dibutylester 4.3%, foot D is that 0.7%, TT is 0.25%, two two five 0.9%.
A kind of preparation method of automobile sealing gasket, concrete step comprises:
(1) according to each component of proportioning weighing;
(2) load weighted material is put in the mixing roll mixing, mixing time is 1 hour, and temperature is not higher than 100 ℃;
(3) above-mentioned mixing material is later put into slice in the mill, the work in-process that form are placed out naturally cooling on the horse, be 24 hours cooling time;
(4) will cool off later film and be put on the vulcanizer and vulcanize, temperature is controlled at 180 ℃, and curing time is 6 minutes, obtains head product;
(5) head product is carried out post cure, curing temperature is 150 ℃, and curing time is 3 hours;
(6) product after the post cure is put into oven for drying, get the finished product.
The present embodiment is most preferred embodiment, through product is detected analysis, produces preferably beneficial effect, and performance test specifically sees the following form 1, adopts this technical scheme, and is so that the ageing resistance of automobile sealing gasket is stronger, high temperature resistant or resistance to low temperature is stronger.
Table 1:
| The traditional performance experiment | Required value | Experimental technique | Measured value |
| Hardness/ | 50±5 | GB/T531 | 52 |
| Tensile strength/MPa | ≧8 | GB/T528 | 11 |
| Tensile yield/% | 250-550 | GB/T528 | 455 |
| 100% stress at definite elongation/MPa | / | GB/T528 | -- |
Except above-mentioned several embodiment, the ratio that each component is shared and proportioning mode thereof can also be other situations, and embodiment is determined on a case-by-case basis, and at this, the present invention does not limit.
By technique scheme, the beneficial effect of technical solution of the present invention is: described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer (being called for short ACM) 44.7%-47.7%, carbon black 16.4%-19.4%, coumarone 1.6%-4.6%, potassium stearate 1%-3%, stearic acid sodium 0.3%-3.3%, calcium carbonate 14.2%-17.2%, oil 4.9%-7.9%, dibutylester 1.6%-4.6%, sufficient D are 0.2%-2.2%, TT is 0.02%-1.55%, two two or five 0.2%-2.2%; By changing the component of described automobile sealing gasket, use resistance to deterioration preferably acrylic elastomer as main raw material, add again the coumarone with drawing effect, can so that the toughness of rubber is better, simultaneously, corresponding lubricant, vulcanizing agent, promotor be used in conjunction with together, so that the automobile sealing gasket of making is difficult for wearing out, high temperature resistant or resistance to low temperature is better, and then improve the working efficiency of motor car engine, prolong the work-ing life of engine.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. an automobile sealing gasket is applicable to it is characterized in that on the motor car engine, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer (being called for short ACM) 44.7%-47.7%, carbon black 16.4%-19.4%, coumarone 1.6%-4.6%, potassium stearate 1%-3%, stearic acid sodium 0.3%-3.3%, calcium carbonate 14.2%-17.2%, oil 4.9%-7.9%, dibutylester 1.6%-4.6%, sufficient D are 0.2%-2.2%, TT is 0.02%-1.55%, two two or five 0.2%-2.2%.
2. automobile sealing gasket according to claim 1 is characterized in that, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 45%-47%, carbon black 17%-19 %, coumarone 2%-4%, potassium stearate 1.2%-2.5%, stearic acid sodium 1%-3%, calcium carbonate 15%-17%, oil 5.5%-7%, dibutylester 2%-4.5%, foot D is 0.4%-1.5%, and TT is 0.03%-1%, two two or five 0.4%-1.5%.
3. automobile sealing gasket according to claim 2 is characterized in that, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 45.5%-47%, carbon black 17.5%-18.5%, coumarone 2.5%-3.5%, potassium stearate 1.4%-2%, stearic acid sodium 1.5%-2.5%, calcium carbonate 16%-17%, oil 6%-6.8%, dibutylester 4%-4.4%, foot D is 0.5%-1%, and TT is 0.05%-0.5%, two two or five 0.7%-1.2%.
4. automobile sealing gasket according to claim 3 is characterized in that, described automobile sealing gasket comprises the component of following mass percent, acrylic elastomer 46.2%, carbon black 17.9%, coumarone 3.1%, potassium stearate 1.5%, stearic acid sodium 1.8%, calcium carbonate 16.7%, oil 6.65%, dibutylester 4.3%, foot D is that 0.7%, TT is 0.25%, two two five 0.9%.
5. each described automobile sealing gasket is characterized in that according to claim 1-4, and described carbon black is carbon black 3600.
6. the preparation method of an automobile sealing gasket is characterized in that, concrete step comprises:
(1) according to claim 1 proportioning, each component of weighing;
(2) load weighted material is put in the mixing roll mixing, mixing time is 0.5-2 hour, and temperature is not higher than 100 ℃;
(3) above-mentioned mixing material is later put into slice in the mill, the work in-process that form are placed out naturally cooling on the horse, be 20-26 hour cooling time;
(4) will cool off later film and be put on the vulcanizer and vulcanize, temperature is controlled at 170 ℃-190 ℃, and curing time is 3-10 minute, obtains head product;
(5) head product is carried out post cure, curing temperature is 140 ℃-160 ℃, and curing time is 2-4 hour;
(6) product after the post cure is put into oven for drying, get the finished product.
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| CN2011102265107A CN102993616A (en) | 2011-08-09 | 2011-08-09 | Automobile gasket and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105315591A (en) * | 2014-07-16 | 2016-02-10 | 上海华化橡胶有限公司 | Oil resistant expandable sealing material and preparation method thereof |
| CN106496703A (en) * | 2016-10-08 | 2017-03-15 | 扬中市橡胶塑料厂有限公司 | A kind of high wearable rubber seal production method |
| CN106519360A (en) * | 2016-10-08 | 2017-03-22 | 扬中市橡胶塑料厂有限公司 | High-abrasion-resistance rubber sealing piece |
| CN113061312A (en) * | 2021-04-09 | 2021-07-02 | 上海通原环保科技有限公司 | Thermoplastic vulcanized rubber elastomer |
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| CN101633768A (en) * | 2009-09-08 | 2010-01-27 | 青岛海力威密封有限公司 | Acrylic ester rubber and preparation method thereof |
| CN102002202A (en) * | 2010-12-10 | 2011-04-06 | 天津鹏翎胶管股份有限公司 | Acrylic rubber composite |
| WO2011093444A1 (en) * | 2010-01-29 | 2011-08-04 | 日本ゼオン株式会社 | Acrylic rubber composition and rubber crosslinked product |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101633768A (en) * | 2009-09-08 | 2010-01-27 | 青岛海力威密封有限公司 | Acrylic ester rubber and preparation method thereof |
| WO2011093444A1 (en) * | 2010-01-29 | 2011-08-04 | 日本ゼオン株式会社 | Acrylic rubber composition and rubber crosslinked product |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105315591A (en) * | 2014-07-16 | 2016-02-10 | 上海华化橡胶有限公司 | Oil resistant expandable sealing material and preparation method thereof |
| CN106496703A (en) * | 2016-10-08 | 2017-03-15 | 扬中市橡胶塑料厂有限公司 | A kind of high wearable rubber seal production method |
| CN106519360A (en) * | 2016-10-08 | 2017-03-22 | 扬中市橡胶塑料厂有限公司 | High-abrasion-resistance rubber sealing piece |
| CN113061312A (en) * | 2021-04-09 | 2021-07-02 | 上海通原环保科技有限公司 | Thermoplastic vulcanized rubber elastomer |
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Application publication date: 20130327 |