CN102838787B - Rubber composition for automobile chassis control arm bushing - Google Patents
Rubber composition for automobile chassis control arm bushing Download PDFInfo
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- CN102838787B CN102838787B CN201210362987.2A CN201210362987A CN102838787B CN 102838787 B CN102838787 B CN 102838787B CN 201210362987 A CN201210362987 A CN 201210362987A CN 102838787 B CN102838787 B CN 102838787B
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- control arm
- automobile chassis
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Abstract
The invention provides a rubber composition for an automobile chassis control arm bushing, which is characterized by comprising the following raw materials in parts by weight: 100 parts of natural rubber, 2-3 parts of p-phenylene diamine derivative, 1.5-2.5 parts of ketone-amine reaction product, 2-3.5 parts of physical anti-aging agent, 5-8 parts of activating agent, 1-2 parts of stearic acid, 2.5-4 parts of composite silane coupling agent/carbon black mixture, 35-48 parts of carbon black, 12-16 parts of white carbon black, 3-5 parts of plasticizer, 1.9-2.5 parts of vulcanizing agent and 1.1-1.85 parts of accelerator. The rubber composition provided by the invention is used for making an automobile chassis control arm bushing, so that the automobile chassis control arm bushing has excellent tilt angle fatigue characteristic, thereby solving the problems in control arm bushing rack fatigue testing and comprehensive reinforced road testing; and the automobile chassis control arm bushing completely satisfies the operational requirements of customers at home and abroad.
Description
Technical field
The present invention relates to a kind of rubber combination for automobile chassis control arm lining, for making automobile chassis control arm lining, belong to rubber technology field.
Background technology
Automobile chassis is supporting, installation motor car engine and each parts thereof, assembly, forms the moulded of automobile.Accept the power of power train, produce tractive force by the effect on driving wheel and road surface, make automobile normal running.Bear the gross weight of automobile and the counter-force on ground simultaneously, relax the impact that uneven road surface causes vehicle body, the vibration in decay running car, keeps the ride comfort travelling; Coordinate with steering system, guarantee vehicle handling stability.In independent wheel suspension system, control arm links together car body and wheel and tire, plays the effect of controlling wheel.Wheel can be moved in the vertical direction according to wheel hop curve, and this curve of beating is important for the dynamic performance of vehicle; Control arm also will be controlled handling, maximum comfortableness and the optimized security that wheel swings simultaneously.In order to take into account these performances, control arm bushing design is generally the Q moving up and down to being solid construction, and the P swinging is to being hollow structure.As shown in Figure 1-2, be the structural representation of automobile chassis control arm lining, formed by metal inner pipe 1, rubber bushing 2, the metal outer pipe 3 of coaxial setting from the inside to the outside.The damping effect of this structure and handling be best, but shortcoming is cannot meet service requirements fatigue lifetime, proves through control arm lining Durability Test, rubber bushing 2 easily breaks in actual use in its hollow direction.And for consumers, rubber bushing 2 damages, control arm lining is scrapped, and results in greater loss.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of rubber combination for automobile chassis control arm lining, and its over-all properties is better, the longer service life of the control arm lining of making.
In order to address the above problem, technical scheme of the present invention is to provide a kind of rubber combination for automobile chassis control arm lining, it is characterized in that, by forming in the raw material of weight part as follows:
100 parts of natural rubbers;
P-phenylene diamine derivative 2-3 part;
Reaction product of acetone and amine 1.5-2.5 part;
Physical antioxidant 2-3.5 part;
Promoting agent 5-8 part;
Stearic acid 1-2 part;
Mixture 2.5-4 part of compound silane coupling agent and carbon black;
Carbon black 35-48 part;
White carbon black 12-16 part;
Softening agent 3-5 part;
Vulcanizing agent 1.9-2.5 part;
1.1-1.85 parts of promotor.
Preferably, described natural rubber be PTP rubber plant of Indonesia produce Indonesia 1# smoke sheet rubber or Thailand with the safe production Thailand 3# of rubber plant smoke sheet rubber.
Described p-phenylene diamine derivative is N-sec.-propyl-N'-diphenyl-para-phenylene diamine or N-(1,3-dimethylbutyl)-N '-diphenyl-para-phenylene diamine.
Preferably, described reaction product of acetone and amine is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance or 6-oxyethyl group-2,2,4-trimethylammonium-1,2-dihyaroquinoline.
Preferably, described physical antioxidant is Microcrystalline Wax.
Preferably, described promoting agent is active oxidizer.
Preferably, the mixture of described compound silane coupling agent and carbon black is the Longsil4C that Shanghai Mao Tong Industrial Co., Ltd. produces.
Preferably, described carbon black is the Cabot N234 that Cabot carbon black plant, Shanghai produces.
Preferably, described white carbon black is for raising the middle Ge Lasi white carbon black production PS-300 of Chemical Co., Ltd..
Preferably, described softening agent is paraffin oil.
Preferably, described vulcanizing agent is sulphur.
Preferably, described promotor is sulfenamide, thiazole accelerator or both compositions.
Further, described sulfenamide type accelerators is N-cyclohexyl-2-[4-morpholinodithio base sulphenamide or N-tertiary butyl 2-[4-morpholinodithio base sulphenamide.
Further, described thiazole accelerator is dibenzothiazyl disulfide.
It is a kind of take LongsilSi69 as main compound silane coupling agent and the mixture-～Longsil4C of carbon black that the present invention is preferred, its distinctive four linear sulphur are vulcanization crosslinking and anti-the reverting outside effect of rubber, and sulfenyl and other functional groups also have cooperative effect.4C, take carbon black as carrier, disperses silane coupling agent more even in compounding rubber.Meanwhile, obtain carbon black dispersion that Si69 fully infiltrates in rubber structure, the combination of carbon black and rubber is played and promoted and enhancement, made the physical and mechanical property of rubber better.Tensile strength, tearing toughness, wear resisting property etc. obviously improve, and tension set reduces, and can also reduce compound viscosity simultaneously, improve processing characteristics.It is the vulcanization system of use also, can effectively improve the reversion resistance of natural rubber, adds Longsil4C can greatly improve the fatigue lifetime of automobile chassis control arm lining.
The present invention finds to use separately novel process fine intermediate super abrasion furnace black high structure can give sizing material high tear strength simultaneously, more also further improves tear strength with the high structure white carbon black of novel process; And research shows to obtain higher pivot angle fatigue lifetime, rubber just must possess high tear resistance.As everyone knows, the tear strength of white carbon black is higher, but dispersed bad, fatigue process heat-dissipating increases, and causes range of application to be subject to certain limitation.And overcome this problem through the high structure white carbon black of the micro-granulation of novel process, improve heat-dissipating by wet method, micro-granulation has solved scattering problem, on general white carbon black basis, improve structure level (specific surface area BET again, be 200 ㎡/g, DBP oil-absorption(number) reaches 2.81 cm3/g), then and further improve its combination brute force dispersed and raising and rubber with Longsil4C, significantly promoted the tear strength of rubber.More than gained rubber unvulcanizate tear strength can reach 140KN/m, and general natural gum tear strength (ASTM D2000 or SAE J200 standard-required >=26KN/m) between 35 KN/m to 60 KN/m.
Rubber combination provided by the invention is used for making automobile chassis control arm lining, makes it have splendid pivot angle fatigue characteristic, has solved control arm lining Durability Test and multiple strengthening road and may well ask and topic meet domestic and international client's service requirements completely.
Accompanying drawing explanation
Fig. 1 is the sectional view of the front view of control arm lining;
Fig. 2 is the vertical view of control arm lining.
In figure:
1, metal inner pipe; 2, rubber bushing; 3, metal outer pipe.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
For a rubber combination for automobile chassis control arm lining, by forming in the raw material of weight part as follows:
Indonesia 1# smoke sheet rubber (RSS 1#): 100 parts;
Zinc oxide: 6 parts;
Stearic acid: 1.5 parts;
N-sec.-propyl-N'-diphenyl-para-phenylene diamine: 2 parts;
2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance: 2.5 parts;
Microcrystalline Wax 1900:3 part;
PS-300:15 part;
N-234:40 part;
Longsil4C:3.5 part;
Paraffin oil: 4 parts;
Sulphur: 2.5 parts;
N-cyclohexyl-2-[4-morpholinodithio base sulphenamide: 0.8 part;
Dibenzothiazyl disulfide: 0.3 part.
Preparation method:
One, mixer mixing: drop into the natural rubber of having plasticated, after 20s, drop into anti-aging agent, Microcrystalline Wax and the stearic acid such as promoting agent, N-sec.-propyl-N'-diphenyl-para-phenylene diamine simultaneously, after 40s, drop into Longsil4C and PS-300, after 60 seconds, drop into N-234 and paraffin oil, binder removal after 180s, wherein banburying chamber's temperature is 120-155 ℃.
In order to make filler have better dispersiveness and the better shrinkability of rubber molecule, one section of rubber unvulcanizate need to be parked at least 12 hours (between general requirement 12 hours to three months) just can add sulphur.
Two, two sections of Banbury mixeies add sulphur: one section of rubber unvulcanizate is put into Banbury mixer, after 20s, drops into vulcanizing agent and promotor simultaneously, after 160s binder removal in mill under thin-pass sheet park.Mill is crossed the roll spacing of range request thin-pass and is adjusted to 0.5-1mm, thin-pass three times and play three triangle bags after slice, lower roll spacing is adjusted to 4-6mm.Wherein banburying chamber's temperature is that 60～80 ℃, mill mixer roller temperature are 50～70 ℃, and material temperature can not exceed 110 ℃.
For a rubber combination for automobile chassis control arm lining, by forming in the raw material of weight part as follows:
Indonesia 1# smoke sheet rubber (RSS 1#): 100 parts;
Zinc oxide: 5 parts;
Stearic acid: 1 part;
N-sec.-propyl-N'-diphenyl-para-phenylene diamine: 3 parts;
2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance: 1.5 parts;
Microcrystalline Wax 1900:3.5 part;
PS-300:12 part;
N-234:48 part;
Longsil4C:2.5 part;
Paraffin oil: 5 parts;
Sulphur: 2 parts;
N-cyclohexyl-2-[4-morpholinodithio base sulphenamide: 0.5;
Dibenzothiazyl disulfide: 1 part.
Preparation method is identical with embodiment 1.
For a rubber combination for automobile chassis control arm lining, by forming in the raw material of weight part as follows:
Zinc oxide: 8 parts;
Stearic acid: 2 parts;
N-(1,3-dimethylbutyl)-N'-diphenyl-para-phenylene diamine: 2.5 parts;
6-oxyethyl group-2,2,4-trimethylammonium-1,2-dihyaroquinoline: 2 parts;
Microcrystalline Wax 1900:2 part;
PS-300:16 part;
N-234:35 part;
Longsil4C:4 part;
Paraffin oil: 3 parts;
Sulphur: 1.9 parts;
N-tertiary butyl 2-[4-morpholinodithio base sulphenamide: 1.3 parts;
Curing dibenzo thiophene: 0.55 part of azoles.
Preparation method is identical with embodiment 1.
Embodiment 4
For a rubber combination for automobile chassis control arm lining, by forming in the raw material of weight part as follows:
Zinc oxide: 7 parts;
Stearic acid: 1.5 parts;
N-(1,3-dimethylbutyl)-N'-diphenyl-para-phenylene diamine: 3 parts;
6-oxyethyl group-2,2,4-trimethylammonium-1,2-dihyaroquinoline: 1.5 parts;
Microcrystalline Wax 1900:3 part;
PS-300:14 part;
N-234:42 part;
Longsil4C:3.5 part;
Paraffin oil: 4 parts;
Sulphur: 2.2 parts;
N-tertiary butyl 2-[4-morpholinodithio base sulphenamide: 1.3 parts;
Dibenzothiazyl disulfide: 0.3 part.
Preparation method is identical with embodiment 1.
Embodiment 5
For a rubber combination for automobile chassis control arm lining, by forming in the raw material of weight part as follows:
Zinc oxide: 6 parts;
Stearic acid: 1 part;
N-sec.-propyl-N'-diphenyl-para-phenylene diamine: 2.5 parts;
2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance: 2 parts;
Microcrystalline Wax 1900:3 part;
PS-300:16 part;
N-234:40 part;
Longsil4C:4 part;
Paraffin oil: 5 parts;
Sulphur: 2.3 parts;
N-tertiary butyl 2-[4-morpholinodithio base sulphenamide: 1 part.
Dibenzothiazyl disulfide: 0.5 part.
Preparation method is identical with embodiment 1.
Embodiment 6
For a rubber combination for automobile chassis control arm lining, by forming in the raw material of weight part as follows:
Zinc oxide: 5 parts;
Stearic acid: 1 part;
N-sec.-propyl-N'-diphenyl-para-phenylene diamine: 2 parts;
2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance: 2.5 parts;
Microcrystalline Wax 1900:2.5 part;
PS-300:13 part;
N-234:44 part;
Longsil4C:3.5 part;
Paraffin oil: 4 parts;
Sulphur: 2.4 parts;
N-cyclohexyl-2-[4-morpholinodithio sulphenamide: 0.5 part;
Dibenzothiazyl disulfide: 0.8 part.
Preparation method is identical with embodiment 1.
Rubber in embodiment 1-6 is carried out to testing of materials, and test-results is as following table:
Table 1
Rubber in embodiment 1-6 is carried out to the long duration test of automobile control arm lining, test conditions is: as shown in Figure 1-2, at the P of control arm lining to loading 4250N, pivot angle ± 15o, frequency 3.3HZ, tired 300,000 rubber crack-frees (require not break for 300,000 times, actual accomplish 390,000 times to occur breach).This test conditions is very harsh, and two directions are simultaneously in stressed swing, cause whole rubber reciprocal stretching, shear and rock, position, R angle produces focal point of stress, occurs breach; Product of the same trade can only be accomplished at most 200,000 times under this condition.
From test-results, rubber unvulcanizate of the present invention has good tensile strength and high tear strength under so high stiffness conditions, is highly resistant in fatigue process to rock, tear and apply the rubber that external force causes and break.The cooperation of Longsil4C and PS-300 can improve rubber cross density and the aging effect of reverting greatly, improves internal friction and heat-dissipating, and the cross-link bond position of focal point of stress is constantly moved.Can auto-compensation after the partial cross-linked bond rupture of fatigue process and generate new cross-link bond and in conjunction with glue, can keep stable cross-linking density in fatigue process, the rubber destruction that effective various stress-strains of resisting fatigue process bring.
Claims (8)
1. for a rubber combination for automobile chassis control arm lining, it is characterized in that, by forming in the raw material of weight part as follows:
100 parts of natural rubbers;
P-phenylene diamine derivative 2-3 part;
Reaction product of acetone and amine 1.5-2.5 part;
Physical antioxidant 2-3.5 part;
Promoting agent 5-8 part;
Stearic acid 1-2 part;
Mixture 2.5-4 part of compound silane coupling agent and carbon black;
Carbon black 35-48 part;
White carbon black 12-16 part;
Softening agent 3-5 part;
Vulcanizing agent 1.9-2.5 part;
1.1-1.85 parts of promotor;
Described p-phenylene diamine derivative is N-sec.-propyl-N'-diphenyl-para-phenylene diamine or N-(1,3-dimethylbutyl)-N '-diphenyl-para-phenylene diamine;
Described reaction product of acetone and amine is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance or 6-oxyethyl group-2,2,4-trimethylammonium-1,2-dihyaroquinoline;
Described physical antioxidant is Microcrystalline Wax;
Described compound silane coupling agent and the mixture of carbon black are the Longsil4C that Shanghai Mao Tong Industrial Co., Ltd. produces;
Described carbon black is the Cabot N234 that Cabot carbon black plant, Shanghai produces;
Described white carbon black is for raising the middle Ge Lasi white carbon black production PS-300 of Chemical Co., Ltd..
2. the rubber combination for automobile chassis control arm lining as claimed in claim 1, is characterized in that, described natural rubber be PTP rubber plant of Indonesia produce Indonesia 1# smoke sheet rubber or Thailand with the safe production Thailand 3# of rubber plant smoke sheet rubber.
3. the rubber combination for automobile chassis control arm lining as claimed in claim 1, is characterized in that, described promoting agent is active oxidizer.
4. the rubber combination for automobile chassis control arm lining as claimed in claim 1, is characterized in that, described softening agent is paraffin oil.
5. the rubber combination for automobile chassis control arm lining as claimed in claim 1, is characterized in that, described vulcanizing agent is sulphur.
6. the rubber combination for automobile chassis control arm lining as claimed in claim 1, is characterized in that, described promotor is sulfenamide, thiazole accelerator or both compositions.
7. the rubber combination for automobile chassis control arm lining as claimed in claim 6, is characterized in that, described sulfenamide type accelerators is N-cyclohexyl-2-[4-morpholinodithio base sulphenamide or N-tertiary butyl 2-[4-morpholinodithio base sulphenamide.
8. the rubber combination for automobile chassis control arm lining as claimed in claim 6, is characterized in that, described thiazole accelerator is dibenzothiazyl disulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362987.2A CN102838787B (en) | 2012-09-25 | 2012-09-25 | Rubber composition for automobile chassis control arm bushing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362987.2A CN102838787B (en) | 2012-09-25 | 2012-09-25 | Rubber composition for automobile chassis control arm bushing |
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| CN102838787A CN102838787A (en) | 2012-12-26 |
| CN102838787B true CN102838787B (en) | 2014-05-21 |
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| CN106608987A (en) * | 2016-08-31 | 2017-05-03 | 保定威奕汽车有限公司 | Engine suspension rubber material and preparation method thereof |
| CN106496662A (en) * | 2016-10-25 | 2017-03-15 | 上海众力投资发展有限公司 | A kind of car engine suspension rubber composition |
| CN107828089A (en) * | 2017-09-26 | 2018-03-23 | 宁波捷豹振动控制系统有限公司 | Binding type stabilizer bar bushing sizing material and preparation method thereof |
| CN107759844A (en) * | 2017-09-26 | 2018-03-06 | 宁波捷豹振动控制系统有限公司 | Vehicle stabilizer bar bushing |
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| US6608145B1 (en) * | 2000-10-13 | 2003-08-19 | Bridgestone Corporation | Silica-reinforced rubber compounded with an organosilane tetrasulfide silica coupling agent at high mixing temperature |
| CN101775164B (en) * | 2010-02-03 | 2012-05-09 | 上海众力汽车部件有限公司 | Rubber compound for self-lubricating stabilizing bar bushing of automobile chassis |
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Effective date of registration: 20160324 Address after: 201199 No. 3099 Gu Dai Road, Shanghai, Minhang District Patentee after: Shanghai Zhongli Automobile Parts Co., Ltd. Address before: 201506 Shanghai City, Jinshan District Jinshan Industrial Zone No. 600 gold Gelu Patentee before: Shanghai Zhongli Investment Development Co., Ltd. |
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