CN105086005A - Tread formula for all-steel load-carrying snow tires of automobiles and preparation method therefor - Google Patents
Tread formula for all-steel load-carrying snow tires of automobiles and preparation method therefor Download PDFInfo
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Abstract
The invention discloses a tread formula for all-steel load-carrying snow tires of automobiles and a preparation method therefor. The tread formula is characterized by consisting of the following raw materials in parts by weight: 62-88 parts of natural rubber, 12-38 parts of SSBR, 15-40 parts of high-dispersion white carbon black, 30-55 parts of carbon black, 1.2-4 parts of coupling agent liquid Si69, 3-15 parts of aromatic hydrocarbon oil, 2-8 parts of zinc oxide, 0.5-3 parts of stearic acid, 2-4 parts of anti-aging agent 6PPD, 1.5-3 parts of anti-aging agent RD, 2-5 parts of microcrystalline wax, 1-3.5 parts of oil-filled sulfur, 1-2.5 parts of accelerant NS, 0.1-1 part of accelerant DPG and 0.1-0.5 part of anti-scorching agent CTP. According to the tread formula for the all-steel load-carrying snow tires of the automobiles and the preparation method therefor, Tg, SSBR, which is similar to the natural rubber, and the white carbon black which is commonly used in semi-steel snow tires are used, so that treads are moderate in hardness and good in elasticity and have the advantages of superior snow glide resistance, good snow field traction, high snow field index and the like in snow field pavements of severe cold regions, and the rideability of tires of snow freighters is greatly improved.
Description
Technical field
The present invention relates to rubber and processing technique field thereof, be specifically related to a kind of all steel load automobile snow tyre tread formula and preparation method thereof, particularly relate to the snowfield special tyre rolled under being applicable to the harsh snowfield road surface of severe cold.
Background technology
The emerging market that snow tire segments at tyre industry is arisen at the historic moment, and because of the user demand that it is special, is all progressively proposed the stringent legislation forcing to use snow tire in the country of the very colds such as Europe, the U.S. and Japan.Although do not have the mandatory rules of law in Russia, in recent years because heavy snow is frequent, a lot of common people also numerous and confused initiative changed snow tire.At oversnow automobile, more should pay close attention to the braking ability of tire itself, grasp performance and handling etc.Formula is the nature basis of whole tire.Snow tire is different from common all-year tire, should have following performance characteristics in tyre surface formula: tyre surface hardness is low, good springiness, second-order transition temperature are low, low temperature resistant, have certain toughness cut resistant, anti-skidding etc.
According to snow tire market analysis, current all steel load snow tire sales volume accounts for greatly 1/3rd of whole snow tire sales volume, and more and more pays close attention to traffic safety sex chromosome mosaicism and on the rise along with transport trade driver.All steel load snow tyre tread sizing material is slightly different from half steel car snow tire focus, so also distinguish to some extent in tyre surface formula design.It is more suitable that the tyre surface hardness of such as half steel controls usually between 50 to 58ShoreA, and all steel snow tyre tread hardness is everlasting between 55 to 65ShoreA, the latter's tread mix is crossed soft then general meeting and is showed poor in handling and in the tire used cycle.
In recent years, in order to improve the performance of snow tyre tread, research staff more attempts employing the solution polymerized butadiene styrene rubber of excellent performance, cis-1,4-polybutadiene rubber, bipeltate, white carbon black, low-temperature flexibility polymkeric substance, high rigidity insoluble solid particle and water-soluble crystalline salt (as sodium-chlor, magnesium sulfate) etc. in snow steel-belted tire tyre surface formula, but each method all exists respective relative merits, key is how to weigh outstanding some key property being applicable to this snowfield environment.
Summary of the invention
The object of the present invention is to provide a kind of all steel load automobile snow tyre tread to fill a prescription and preparation method thereof, improve the grasp property of this special tyre on harsh snowfield road surface and accelerating ability by the optimization design of tyre surface formula.The present invention by using the solution polymerized butylbenzene that second-order transition temperature (Tg) is close with natural rubber in all steel load snow tire field, and at the high-dispersion white carbon black that half steel car snow tire is commonly used, under collocation of reasonably filling a prescription, the consumption optimized and appropriate preparation method, all steel load snow tire of the present invention is snowed advantages such as having superior anti-slip, good snowfield adherence properties and high snowfield index on the harsh snowfield road surface of severe cold.
For realizing the object of the invention, the technical solution adopted in the present invention is as follows:
A kind of all steel load automobile snow tyre tread formula, described tyre surface formula is made up of the raw material of following parts by weight, natural rubber 62-88 part, solution polymerized butylbenzene 12-38 part, high-dispersion white carbon black 15-40 part, carbon black 30-55 part, coupling agent liquid Si691.2-4 part, aromatic hydrocarbon oil 3-15 part, zinc oxide 2-8 part, stearic acid 0.5-3 part, anti-aging agent 6PPD2-4 part, anti-aging agent RD 1.5-3 part, Microcrystalline Wax 2-5 part, oil-filled sulphur 1-3.5 part, accelerator NS 1-2.5 part, vulkacit D PG0.1-1 part, anti-scorching agent CTP 0.1-0.5 part.
Further, described snowfield tyre surface formula preferably combines by the raw material of following parts by weight, natural rubber 66-75 part, solution polymerized butylbenzene 25-34 part, high-dispersion white carbon black 20-35 part, carbon black 32-50 part, coupling agent liquid Si691.8-3.5 part, aromatic hydrocarbon oil 5-14 part, zinc oxide 3-6 part, stearic acid 1-3 part, anti-aging agent 6PPD2-3.2 part, anti-aging agent RD 1.5-2.5 part, Microcrystalline Wax 2-3 part, oil-filled sulphur 1.2-2.3 part, accelerator NS 1-1.8 part, vulkacit D PG0.2-0.6 part, anti-scorching agent CTP 0.15-0.28 part.
Preferably, in described tyre surface formula, solution polymerized butylbenzene selects the raw material that its second-order transition temperature (Tg) is close with natural rubber.
Preferably, in described tyre surface formula, kind of carbon black selects N220.
Preferably, in described tyre surface formula, natural rubber is greater than 2:1 with the ratio of solution polymerized butylbenzene parts by weight.
Preferably, in described tyre surface formula, high-dispersion white carbon black is less than or equal to 1:1 with the ratio of carbon black parts by weight.
Preferably, in described tyre surface formula, coupling agent liquid Si69 is 1:13 ~ 1:10 with the ratio of high-dispersion white carbon black parts by weight.
A kind of all steel load automobile snow tyre tread formula and preparation method thereof, the preparation method of described tyre surface formula carries out as follows:
A natural rubber, solution polymerized butylbenzene, high-dispersion white carbon black and coupling agent liquid Si69 put in Banbury mixer and carry out plasticating 20-40s, melting temperature 110-140 DEG C by (), rotating speed is 55-30rpm, first quick and back slow, and ram piston pressure 45-55N/cm
2, carry floating weight in mixing 2 times, keep 10-20s at every turn;
B carbon black, stearic acid, anti-aging agent 6PPD, anti-aging agent RD and Microcrystalline Wax are put into mixing 20-40s in the Banbury mixer of step (a) by (), rotating speed 35-45rpm, and ram piston pressure is constant;
C aromatic hydrocarbon oil is put into mixing 60-100s in the Banbury mixer of step (b) by (), rotating speed 30-40rpm, and ram piston pressure is constant, dump temperature 145-155 DEG C;
D () binder removal slice, respectively through containing the aqueous solution of separant, water coolant and fan cooling, obtains rubber master batch;
E appropriate rubber master batch, oil-filled sulphur, accelerator NS, vulkacit D PG, anti-scorching agent CTP and zinc oxide are put into mixing 40-70s in Banbury mixer by (), rotating speed 25-35rpm, dump temperature 100-110 DEG C.
F () binder removal slice, respectively through containing the aqueous solution of separant, water coolant and fan cooling, obtains finished composition;
G finished composition is made the tyre surface with certain specification shape by () by forcing machine and rolling press.
The Advantageous Effects of all steel load automobile snow tyre tread formula of the present invention and preparation method thereof is mainly reflected in:
Moderate as all steel load automobile tire surface hardness, good springiness, at severe cold area ice and snow road and heavy condition snow there is the advantage that anti-slip is superior, snowfield adherence properties is good and snowfield index is high, substantially increase the rideability of snowfield truck tyre.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention is not limited thereto, and described embodiment is only a part of embodiment of the present invention.
Embodiment 1
A kind of all steel load automobile snow tyre tread formula and preparation method thereof, formula following (with weight parts):
Natural rubber 70 parts, solution polymerized butylbenzene 30 parts, high-dispersion white carbon black 28 parts, carbon black N22042 part, coupling agent liquid Si692.8 part, aromatic hydrocarbon oil 10 parts, 4 parts, zinc oxide, stearic acid 1.5 parts, anti-aging agent 6PPD2.8 part, anti-aging agent RD 1.8 parts, Microcrystalline Wax 3 parts, 1.7 parts, oil-filled sulphur, accelerator NS 0.9 part, vulkacit D PG0.4 part, anti-scorching agent CTP 0.18 part.
The preparation method of above-mentioned tyre surface formula carries out as follows:
A natural rubber, solution polymerized butylbenzene, high-dispersion white carbon black and coupling agent liquid Si69 put in Banbury mixer and carry out plasticating 20-40s, melting temperature 110-140 DEG C by (), rotating speed is 55-30rpm, first quick and back slow, and ram piston pressure 45-55N/cm
2, carry floating weight in mixing 2 times, keep 10-20s at every turn;
B carbon black N220, stearic acid, anti-aging agent 6PPD, anti-aging agent RD and Microcrystalline Wax are put into mixing 20-40s in the Banbury mixer of step (a) by (), rotating speed 35-45rpm, and ram piston pressure is constant;
C aromatic hydrocarbon oil is put into mixing 60-100s in the Banbury mixer of step (b) by (), rotating speed 30-40rpm, and ram piston pressure is constant, dump temperature 145-155 DEG C;
D () binder removal slice, respectively through containing the aqueous solution of separant, water coolant and fan cooling, obtains rubber master batch;
E appropriate rubber master batch, oil-filled sulphur, accelerator NS, vulkacit D PG, anti-scorching agent CTP and zinc oxide are put into mixing 40-70s in Banbury mixer by (), rotating speed 25-35rpm, dump temperature 100-110 DEG C.
F () binder removal slice, respectively through containing the aqueous solution of separant, water coolant and fan cooling, obtains finished composition;
G finished composition is made the tyre surface with certain specification shape by () by forcing machine and rolling press.
The key technical indexes that use embodiment 1 obtains tread mix is as follows:
| Project | Unit | Embodiment 1 |
| 100% tensile modulus | MPa | 2.3 |
| 300% tensile modulus | MPa | 11.9 |
| Tensile strength at yield | MPa | 23.8 |
| Tensile yield | ％ | 531 |
| Tear strength | MPa | 102 |
| Akron abrasion | cm 3/1.61km | 0.128 |
| Hardness | Sh.A | 62 |
| 0℃Tanδ | - | 0.2260 |
| 60℃Tanδ | - | 0.1403 |
| 0℃|E*| | MPa | 22.65 |
| -25℃|E*| | MPa | 50.51 |
Note: sizing material properties is all tested according to national standard or industry standard, rubber vulcanization condition is 151 DEG C × 30min; Wherein, dynamic properties test is that the Dynamic Viscoelastic spectrometer (DMA) adopting German GABO company to produce carries out temperature scanning sign to cross-linked rubber, test condition is: stretch mode, frequency 10Hz, static strain 3%, dynamic strain 1%, temperature range-80-80 DEG C, temperature rise rate 2 DEG C/min.
Tyre surface formula in embodiment 1 is made all steel load automobile snow tire of 11R22.5148/145M specification, tread pattern is shown in Chinese Patent Application No. 2015201291381; The snowfield acceleration characteristics of T ü VRheinland company of Germany according to ECE-R117 statutory standard on harsh snowfield road surface to above-mentioned finished product tire is tested, snowfield index also can reflect snow tire frictional force and snowfield gripping power over the ground simultaneously to a certain extent, wherein Comparison of standards tire (SRTT) performs ASTM standard (E1136-93), and its key technical indexes is as follows:
Embodiment 2
An all steel load automobile snow tyre tread formula, formula following (with weight parts):
Natural rubber 70 parts, solution polymerized butylbenzene 30 parts, high-dispersion white carbon black 20 parts, carbon black N22050 part, coupling agent liquid Si692 part, aromatic hydrocarbon oil 5 parts, 4 parts, zinc oxide, stearic acid 1.5 parts, anti-aging agent 6PPD2.8 part, anti-aging agent RD 1.8 parts, Microcrystalline Wax 3 parts, 1.7 parts, oil-filled sulphur, accelerator NS 0.9 part, vulkacit D PG0.3 part, anti-scorching agent CTP 0.18 part.
The preparation method of above-mentioned tyre surface formula is with embodiment 1.
Embodiment 3
An all steel load automobile snow tyre tread formula, formula following (with weight parts):
Natural rubber 67 parts, solution polymerized butylbenzene 33 parts, high-dispersion white carbon black 25 parts, carbon black N22045 part, coupling agent liquid Si692.5 part, aromatic hydrocarbon oil 5 parts, 4 parts, zinc oxide, stearic acid 1.5 parts, anti-aging agent 6PPD2.8 part, anti-aging agent RD 1.8 parts, Microcrystalline Wax 3 parts, 1.7 parts, oil-filled sulphur, accelerator NS 0.9 part, vulkacit D PG0.25 part, anti-scorching agent CTP 0.18 part.
The preparation method of above-mentioned tyre surface formula is with embodiment 1.
Claims (8)
1. an all steel load automobile snow tyre tread formula, it is characterized in that, described tyre surface formula is the raw material comprising following parts by weight: natural rubber 62-88 part, solution polymerized butylbenzene 12-38 part, high-dispersion white carbon black 15-40 part, carbon black 30-55 part, coupling agent liquid Si691.2-4 part, aromatic hydrocarbon oil 3-15 part, zinc oxide 2-8 part, stearic acid 0.5-3 part, anti-aging agent 6PPD2-4 part, anti-aging agent RD 1.5-3 part, Microcrystalline Wax 2-5 part, oil-filled sulphur 1-3.5 part, accelerator NS 1-2.5 part, vulkacit D PG0.1-1 part, anti-scorching agent CTP 0.1-0.5 part.
2. all steel load automobile snow tyre tread formula according to claim 1, it is characterized in that, described tyre surface formula comprises the raw material of following parts by weight: natural rubber 66-75 part, solution polymerized butylbenzene 25-34 part, high-dispersion white carbon black 20-35 part, carbon black 32-50 part, coupling agent liquid Si691.8-3.5 part, aromatic hydrocarbon oil 5-14 part, zinc oxide 3-6 part, stearic acid 1-3 part, anti-aging agent 6PPD2-3.2 part, anti-aging agent RD 1.5-2.5 part, Microcrystalline Wax 2-3 part, oil-filled sulphur 1.2-2.3 part, accelerator NS 1-1.8 part, vulkacit D PG0.2-0.6 part, anti-scorching agent CTP 0.15-0.28 part.
3. all steel load automobile snow tyre tread formula according to claim 1 and 2, is characterized in that, the raw material that in described tyre surface formula, solution polymerized butylbenzene selects its second-order transition temperature close with natural rubber.
4. all steel load automobile snow tyre tread formula according to claim 1 and 2, it is characterized in that, in described tyre surface formula, kind of carbon black selects N220.
5. all steel load automobile snow tyre tread formula according to claim 1 and 2, it is characterized in that, in described tyre surface formula, natural rubber is greater than 2:1 with the ratio of solution polymerized butylbenzene parts by weight.
6. all steel load automobile snow tyre tread formula according to claim 1 and 2, it is characterized in that, in described tyre surface formula, high-dispersion white carbon black is less than or equal to 1:1 with the ratio of carbon black parts by weight.
7. all steel load automobile snow tyre tread formula according to claim 1 and 2, it is characterized in that, in described tyre surface formula, coupling agent liquid Si69 is 1:13 ~ 1:10 with the ratio of high-dispersion white carbon black parts by weight.
8. the preparation method of all steel load automobile snow tyre tread formula according to claim 1 and 2, is characterized in that, described a kind of all steel load automobile snow tyre tread formula, and its preparation method carries out as follows:
A natural rubber, solution polymerized butylbenzene, high-dispersion white carbon black and coupling agent liquid Si69 put in Banbury mixer and carry out plasticating 20-40s, melting temperature 110-140 DEG C by (), rotating speed is 55-30rpm, first quick and back slow, and ram piston pressure 45-55N/cm
2, carry floating weight in mixing 2 times, keep 10-20s at every turn;
B carbon black, stearic acid, anti-aging agent 6PPD, anti-aging agent RD and Microcrystalline Wax are put into mixing 20-40s in the Banbury mixer of step (a) by (), rotating speed 35-45rpm, and ram piston pressure is constant;
C aromatic hydrocarbon oil is put into mixing 60-100s in the Banbury mixer of step (b) by (), rotating speed 30-40rpm, and ram piston pressure is constant, dump temperature 145-155 DEG C;
D () binder removal slice, respectively through containing the aqueous solution of separant, water coolant and fan cooling, obtains rubber master batch;
E appropriate rubber master batch, oil-filled sulphur, accelerator NS, vulkacit D PG, anti-scorching agent CTP and zinc oxide are put into mixing 40-70s in Banbury mixer by (), rotating speed 25-35rpm, dump temperature 100-110 DEG C.
F () binder removal slice, respectively through containing the aqueous solution of separant, water coolant and fan cooling, obtains finished composition;
G finished composition is made the tyre surface with certain specification shape by () by forcing machine and rolling press.
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Cited By (7)
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| CN105585747A (en) * | 2016-02-29 | 2016-05-18 | 杭州朝阳橡胶有限公司 | Three-layer-tire-tread-structure all-steel truck tire for winter |
| CN106117648A (en) * | 2016-08-15 | 2016-11-16 | 冯诗睿 | A kind of antiskid cart rubber for tire and production technology thereof |
| CN107129609A (en) * | 2017-06-28 | 2017-09-05 | 山东玲珑轮胎股份有限公司 | Tire tread and preparation method thereof |
| CN108102158A (en) * | 2017-12-22 | 2018-06-01 | 风神轮胎股份有限公司 | The fire-retardant tread mix of tire is used before a kind of metallic ore smelting furnace |
| CN108250504A (en) * | 2018-01-18 | 2018-07-06 | 三角轮胎股份有限公司 | The tread rubber composition of commercial car tire |
| CN109627511A (en) * | 2018-12-29 | 2019-04-16 | 山东毅狮迈特种轮胎股份有限公司 | A kind of low temperature resistant solid tyre |
| CN111333934A (en) * | 2020-04-28 | 2020-06-26 | 三角轮胎股份有限公司 | Four-season all-steel snow and ice ground tire tread rubber composition |
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| CN108250504A (en) * | 2018-01-18 | 2018-07-06 | 三角轮胎股份有限公司 | The tread rubber composition of commercial car tire |
| CN109627511A (en) * | 2018-12-29 | 2019-04-16 | 山东毅狮迈特种轮胎股份有限公司 | A kind of low temperature resistant solid tyre |
| CN111333934A (en) * | 2020-04-28 | 2020-06-26 | 三角轮胎股份有限公司 | Four-season all-steel snow and ice ground tire tread rubber composition |
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