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Tire tread rubber and preparation method and application thereof
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A tire tread and compound technology, which is applied in the field of semi-steel radial tire compound composition and tire tread compound, to achieve the effect of improving dry ground handling performance
Inactive Publication Date: 2015-09-02
SHANDONG LINGLONG TIRE
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[0005] Therefore, it is necessary to propose an effective technical solution to improve the wet skid performance and dry handling, snow and ice braking performance of the current tread formula.
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Embodiment 1
[0066] Rubber compositions of the composition specified in Table 1 were prepared in a BR Banbury internal mixer in separate addition mixing stages, ie, three non-productive mixing stages and one productive mixing stage. In the non-productive mixing stage, mix for an appropriate time until the rubber temperature reaches 160°C, which is complete; the mixing time in the productive stage is to make the rubber discharge and stop when the rubber temperature reaches 115°C.
[0084] In a BR Banbury internal mixer, a rubber composition with the composition specified in Sample 2 in Example 1 was prepared. This rubber composition is referred to herein as sample a.
[0085] The preparation method is the same as in Example 1, the difference being that the amount of styrene-butadiene copolymer added in sample a is 35 kg.
[0086] Table 3 Rubber composition components of sample a (unit: kg).
[0087]
[0088] In this example, using different styrene-butadiene copolymers, after winter performance test, the obtained parameter data are shown in the figure below:
[0089] Table 4 Appearance and physical properties of vulcanized sample a.
[0090] As shown in Table 4, the results show that, by comparing the sample 2 of Table 2 in Example one with the sample a of Table 4 in Example two, the addition ratio of different styrene-butadiene copolymers will affect to a certain extent Hardness, 0°C tanδ value and dynamic Tg point. With the increase of the pro...
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Abstract
The invention relates to tire tread rubber. The tire tread rubber comprises, by weight, 100 parts of main rubber ingredients which include 1-90 parts of cis-1,4-polyisoprene rubber, 1-90 parts of cis-polybutadienepolymer, 1-90 parts of styrene-butadiene polymer and 1-90 parts of vegetable oil which is vegetable seed oil. The tire tread rubber has the advantages that wet skid resistance of a tire is remained, and dry-land operating performance of tire is improved; the vegetable seed oil is low in glass transition temperature and is high in flowability even at extremely low temperature, so that flexibility of the rubber at low temperature and wet skid resistance parameter 0 DEC G tan delta of the rubber can be guaranteed, and ground clinging performance and operating performance of the tire on ice surfaces, snowy ground and wet lands are improved.
Description
technical field [0001] The invention relates to the field of tire treads, in particular to a semi-steel radial tire compound composition, in particular to a tire tread compound and its preparation method and application. Background technique [0002] The tire labeling regulation issued by the European Union - EC1222 / 2009, standardizes the three performances of tire fuel efficiency, rolling noise and wet grip, and promotes the reduction of vehicle energy consumption through the enforcement of this regulation. It can be seen from this that the development trend of energy saving and environmental protection in the field of tires in the world. Among them, the anti-wet skid performance of the tire is closely related to the selection of tread material, the design of the formula and the adjustment of the preparation process. [0003] Most of the tread production of existing semi-steel radial tires uses petroleum-based aromatic oil, and tires containing petroleum-based non-environm...
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