CN1121470A - Snow tire and process for preparing the same - Google Patents
Snow tire and process for preparing the same Download PDFInfo
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- CN1121470A CN1121470A CN 95108542 CN95108542A CN1121470A CN 1121470 A CN1121470 A CN 1121470A CN 95108542 CN95108542 CN 95108542 CN 95108542 A CN95108542 A CN 95108542A CN 1121470 A CN1121470 A CN 1121470A
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Abstract
The present invention relates to snow antiskid tire which improves both towing/braking characteristics on ice or a snow road and draining performance during a travel by mixing a specific quantity of water-soluble crystallized salt in the rubber composition of a tire tread section to have antiskid performance. The water-soluble crystallized salt contained in the rubber composition of the tread section of a tire is dissolved in the water on a road surface, or it is separated from the rubber composition to form recesses. The recesses exert a function like the recessed grooves on a tire made of foam rubber.
Description
The present invention relates to the automobile steel-studded tire, more particularly, what the present invention relates to is a kind of like this steel-studded tire, promptly this tire has antiskid capability owing to having sneaked into water-soluble crystalline salt at the surface portion of tyre surface, tractive force and brake ability on ice face or snowy road surface, have been improved, improved drainage under steam, this is because wherein contained water-soluble crystalline salt spins off from tire or is dissolved in the water, originally the occupied part of crystalline salt has formed groove, these grooves and with the foaming groove function class in the motor tire of foamed rubber system seemingly.
Up to now, be used in order to improve tractive force and to improve the existing following method of braking quality: anti-skidding vanadium is set on tire, hard powder such as glass powder is joined in the rubber composition of tyre surface, uses and have the poly-mer of toughness under the low temperature or in the rubber composition of tyre surface, add to advance the cross-linked rubber powder or in foamed rubber, form the bubble that disperses.
But because tire is provided with and comprises the hard powder in anti-skid stud or the tire, thereby these tires have following shortcoming: tread surface is fragile, destroys road and causes contamination by dust.In addition, owing to use the poly-mer of flexible under the low temperature or introduce the cross-linked rubber powder in rubber composition, so these tires also have other shortcoming: the braking quality on the ice face can not be satisfactory, control stiffness descends, resistance to abrasion also reduces.In addition, make by soften flux at low temperatures and contain the tire that the foamed rubber that disperse bubble form in the rubber and have very big defective, promptly be not easy draining, this is because bubble has formed sunk part rather than projection on tread surface, and the process technology of this class tire very complexity and processing charges is very high.
Therefore, the effect that the purpose of this invention is to provide can also be played the such tire by the formed steel-studded tire effect of foamed rubber simultaneously with having steel-studded tire anti-skid stud or stud.
Fig. 1 is the cross sectional drawing of surface of tyre of the present invention.
Fig. 2 a, 2b and 2c are the surface of tyre photographs by embodiment 4 to embodiment 6 manufacturings of taking pictures by electron microscope.
Snow tire of the present invention is characterised in that the water-soluble crystalline salt of sneaking into the 10-100 weight portion in the tire tread rubber composition of 100 weight portions.
And, the invention provides a kind of method of making steel-studded tire, the feature of this method is that the water-soluble crystalline salt of 10-100 weight portion is blended in the tire protector rubber composition of 100 weight portions.
Further details of the present invention is described below.
Fig. 1 is the cross sectional drawing of surface of tyre of the present invention.
That is, water-soluble crystalline salt is sneaked in the rubber composition of tire protector of sulfuration, the water-soluble crystalline salt in the tire is existed with solid form.
Tread portion wearing and tearing in travelling, the crystalline salt (1) that is included in the tire protector rubber composition will highlight from the surface of tread portion.Above-mentioned outstanding crystalline salt (2) has played the effect of anti-skid stud, because the hardness ratio rubber of crystalline salt wants high.
If desired, the crystalline salt of sneaking in the tire protector rubber composition is salt (NaCl), and combined amount is the rubber composition of the water-soluble crystalline salt of 10-100 weight portion to 100 weight portions.
The size of preferred water dissolubility crystalline salt (1) is 30-50 micron (μ m), more preferably 80 microns (μ m).If the size of crystalline salt is too big, the tensile strength of rubber composition will reduce.
Simultaneously, need, crystalline salt (1) is with 50-100 unit/mm
2Be distributed in the cross-sectional plane of rubber composition.If this distribution is not in above-mentioned scope, because the molecule decreased number of unit cross-sectional plane may cause the material behavior of rubber composition to degenerate.Owing to being dissolved in the water on the road surface under steam or spinning off, the partly outstanding water-soluble crystalline salt of tire protector of the present invention forms sunk part (3) from above-mentioned rubber composition.So sunk part (3) improves braking quality by the draining between road and tire protector, these sunk parts have improved tractive force and have improved deceleration and stopping performance owing to the effect of having played groove in the formed tire of foamed rubber.
For example of the present invention, water-soluble crystalline salt for example its original dimension of salt remains on this salt and the mixed size of rubber composition just.
Because water-soluble crystalline salt partly spins off from tire protector, so the size of crystalline salt has determined the size and the number of groove.
In addition, according to the present invention, unvulcanized rubber composition and NaCl mix, and place about 1 week under the room temperature, and NaCl does not dissolve as a result.
And the distribution of the crystalline salt in the rubber composition presents good effect.
As mentioned above, steel-studded tire of the present invention has whole advantages of settling anti-skid stud and comprising the tire of foamed rubber.And above-mentioned steel-studded tire of the present invention does not produce pollutions such as dust under steam, does not particularly require that rubber has specific material character in making tire.Therefore, above-mentioned tire is compared with the steel-studded tire that foamed rubber are formed and is had the advantage that expense of raw materials reduces.And if with Banbury mixer or rolling press water-soluble crystalline salt is sneaked into rubber, crystal is not destroyed.Therefore, its advantage is the groove size that the disengaging by crystalline salt forms and distributes to fix.
Details of the present invention is illustrated as follows, and the present invention is not subjected to the restriction of the following example.Embodiment 1-6
After the composite of expression fully is mixed and made into masterbatch in the table 1 in Banbury mixer, make tire by the usual method of making tire.
The material characteristics of tire protector is as follows, and the result is illustrated in the table 1.Comparative Examples 1
The material property of existing steel-studded tire (by the foamed rubber manufacturing, pattern 918) is illustrated in down in the tabulation 1.[material behavior experiment]
Following experiment is all measured according to the ASTM-D1456-86 test code.
I) experiment of hardness
This experiment is to measure rubber hardness, use be Spring type hardness tester tester (SHORE-A).
Ii) modulus measurements (is extended 300% o'clock stress, M300)
Modulus is the stress of rubber sample when being extended especially, and modulus was measured in elongation at 300% o'clock in this experiment.
The iii) mensuration of percentage elongation (Eb)
After rubber is elongated to conventional length and keeps specified time, shrink soon, measure the reservation elongation of this rubber then.
Iv) tensile strength experiment (Tb)
Experiment is that mensuration rubber extends the peak load when being broken.
Table 1
| The size of NaCl (μ m) | The content of Nacl (weight portion) | Hardness (shore-A) | Modulus (M300, kg/cm 2) | Percentage elongation (%) | Tensile strength (kg/cm 2) | |
| | ????300 | ????20 | ????64 | ????124.7 | ????377 | ????172.0 |
| | ????300 | ????40 | ????65 | ????112.4 | ????348 | ????136.4 |
| | ????300 | ????60 | ????66 | ????107.0 | ????320 | ????115.3 |
| | ????100 | ????20 | ????66 | ????134.6 | ????415 | ????206.0 |
| Embodiment 5 | ????100 | ????40 | ????67 | ????127.2 | ????385 | ????176.1 |
| Embodiment 6 | ????100 | ????60 | ????68 | ????111.4 | ????362 | ????143.6 |
| The comparative example 1 | ????- | ????- | ????54±5 | ????103±25 | ????425 | ????168 |
[dynamic friction coefficient (μ) experiment]
A) wet tractive force
The mounting of tyre that embodiment 4-6 and Comparative Examples 1 are made is on automobile, and automobile travels with certain speed (40km/hr and 60km/hr) on the pitch that forms moisture film, in showing below the experimental result of wet tractive force is listed in.The instrument that uses in the above-mentioned experiment is the SUNNY KOKEN of Japan.
Table 2
| The traction situation | Friction coefficient when speed is 40km/hr | Friction coefficient when speed is 40km/ | |
| Embodiment | |||
| 4 | Pitch (23 ℃) | ??????0.23 | ??????0.22 |
| Embodiment 5 | Pitch (23 ℃) | ??????0.24 | ??????0.23 |
| Embodiment 6 | Pitch (23 ℃) | ??????0.23 | ??????0.22 |
| The comparative example 1 | Pitch (23 ℃) | ??????0.24 | ??????0.23 |
B) tractive force on ice
The tire of embodiment 4-6 and Comparative Examples 1 preparation is installed on the automobile.
The gas car travels with certain speed (40km/hr and 60km/hr) on-10 ℃ ice road surface, and the experimental result of ice tractive force is represented in the following Table 3.
Table 3
| The traction situation | Friction coefficient when speed is 40km/hr | Friction coefficient when speed is 40km/ | |
| Embodiment | |||
| 4 | On the ice road (10 ℃) | ?????0.020 | ?????0.015 |
| Embodiment 5 | On the ice road (10 ℃) | ?????0.020 | ?????0.015 |
| Embodiment 6 | On the ice road (10 ℃) | ?????0.020 | ?????0.015 |
| The comparative example 1 | On the ice road (10 ℃) | * can't measure | * can't measure |
* because friction coefficient energy measurement not, deceleration and stopping performance is very poor
In addition, whether be distributed in the steel-studded tire tread portion equably in order to understand crystalline salt, we utilize electron microscope to observe.
Fig. 2 a, 2b and 2c are the photographs on the surface of the tire made of the embodiment of the invention 4-6 that takes pictures with electron microscope.
As shown in table 2, show that surface of tyre includes the NaCl particle.
Claims (6)
1. a steel-studded tire is characterised in that in the rubber composition of the tire protector of mixed 100 weight portions of the water-soluble crystalline salt of 10-100 weight portion.
2. steel-studded tire according to claim 1, wherein water-soluble crystalline salt are that size is the NaCl of 30-500 μ m.
3. steel-studded tire according to claim 1 and 2, wherein water-soluble crystalline salt is with 50-100 unit/mm
2Be distributed on the cross-sectional plane of tire protector rubber composition.
4. a method of making steel-studded tire is characterised in that the water-soluble crystalline salt of 10-100 weight portion is sneaked in the tire protector rubber composition of 100 weight portions.
5. the method for manufacturing steel-studded tire according to claim 4, wherein water-soluble crystalline salt are that size is the NaCl of 30-500 μ m.
6. according to the method for the manufacturing steel-studded tire of claim 4 or 5, wherein water-soluble crystalline salt is with 50-100 unit/mm
2Be distributed on the rubber composition cross-sectional plane of tire protector.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR11448/94 | 1994-05-25 | ||
| KR19940011448 | 1994-05-25 | ||
| KR1019950012575A KR0131522B1 (en) | 1994-05-25 | 1995-05-19 | Snow-tire and a process for preparing the same |
| KR12575/95 | 1995-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1121470A true CN1121470A (en) | 1996-05-01 |
Family
ID=26630391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95108542 Pending CN1121470A (en) | 1994-05-25 | 1995-05-24 | Snow tire and process for preparing the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0840007A (en) |
| CN (1) | CN1121470A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669948A (en) * | 2013-11-28 | 2015-06-03 | 招远市东晟橡胶制品有限公司 | Antiskid tire for snowy ground |
| CN106046443A (en) * | 2016-07-13 | 2016-10-26 | 安徽佳通乘用子午线轮胎有限公司 | Polymer rubber composition for winter tires and preparing method and application thereof |
| CN110325072A (en) * | 2017-03-08 | 2019-10-11 | 米其林集团总公司 | Antiskid sole |
-
1995
- 1995-05-24 JP JP7125000A patent/JPH0840007A/en active Pending
- 1995-05-24 CN CN 95108542 patent/CN1121470A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669948A (en) * | 2013-11-28 | 2015-06-03 | 招远市东晟橡胶制品有限公司 | Antiskid tire for snowy ground |
| CN106046443A (en) * | 2016-07-13 | 2016-10-26 | 安徽佳通乘用子午线轮胎有限公司 | Polymer rubber composition for winter tires and preparing method and application thereof |
| CN110325072A (en) * | 2017-03-08 | 2019-10-11 | 米其林集团总公司 | Antiskid sole |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0840007A (en) | 1996-02-13 |
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