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Four-season semi-steel tire tread compound and its preparation method and application

A tread rubber and tread technology, which is applied to special tires, tire parts, transportation and packaging, etc., can solve the problems of the physical properties of the rubber compound, the inability to increase the value of tanδ at 0°C, etc., and achieve the improvement of wet skid performance and maintenance The rolling resistance performance is unchanged, and the effect of improving the wet skid performance

Active Publication Date: 2017-05-24
SHANDONG LINGLONG TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Since the raw rubber system is usually added together during the mixing process, ENR is co-mixed with other raw rubber components, and the compatibility is better, so it is impossible to increase the 0°C tanδ value by reflecting the ENR peak on the DMA spectrum; at the same time The physical properties of the rubber compound are greatly reduced

Method used

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  • Four-season semi-steel tire tread compound and its preparation method and application
  • Four-season semi-steel tire tread compound and its preparation method and application
  • Four-season semi-steel tire tread compound and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The rubber composition with the composition specified in Table 1 was prepared in a GK400 internal mixer, and the preparation process took six separate addition mixing stages, namely five non-productive mixing stages and one productive mixing stage. The five non-productive stages were mixed for about 1.5-4 minutes; the productive stage was mixed for about 1-3 minutes, and the rubber temperature did not exceed 110°C.

[0066] The specific process is as follows:

[0067] Rubber main materials (cis 1,4-polyisoprene rubber, cis-butadiene-trans-butadiene copolymer synthetic rubber, styrene-butadiene copolymer synthetic rubber), white carbon black, white Carbon black dispersant, silane coupling agent, and aromatic oil are mixed for 1.5-4 minutes in a non-productive stage until the temperature of the rubber material reaches 160 ° C, which is completed;

[0068] After one-stage degumming and cooling, add carbon black, anti-aging agent (anti-aging agent 6PPD, anti-aging agent TM...

Embodiment 2

[0091] Prepare the rubber composition with the specified composition of sample 3 in the first embodiment in a GK400 internal mixer. The rubber compositions are referred to herein as sample a, sample b.

[0092] The preparation method is the same as in Example 1, the difference is that ENR in sample a is added in the second non-productive stage, and ENR in sample b is added in the fifth non-productive stage.

[0093] Table 3 gives the appearance and physical properties of samples a and b.

[0094] Table 3 Appearance and physical properties of samples a and b

[0095] 151℃*30min vulcanization a b Dynamic Tg 1 (℃)

-22 -24 Dynamic Tg 2 (℃)

-0.3 -2.1 0℃tanδ 0.38 0.54 60℃tanδ 0.13 0.11

[0096] Adopt the method identical with embodiment one to measure the present embodiment, as shown in table 3, the result shows:

[0097] Adding the same amount of 20 parts by weight of ENR in different production stages can be clearly compared: ...

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Abstract

The invention relates to the technical field of tires, and concretely relates to an all-season semisteel tire tread rubber compound. The all-season semisteel tire tread rubber compound comprises a rubber main material and a compounding agent, 100 parts by weight of the rubber main material comprise, by weight, 1-50 parts of cis-1,4-polyisoprene rubber, 1-50 parts of cis-butadiene-trans-butadiene copolymer synthetic rubber and 1-80 parts of styrene-butadiene copolymer synthetic rubber, and 100 parts by weight of the compounding agent comprise 1-40 parts by weight of a polar assistant ENR. The use of the polar assistant ENR makes a formula in a doublet state, greatly improves the wet slippery resistance of the rubber compound, and keeps the rolling resistance unchanged.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a rubber compound for treads of semi-steel tires and its preparation method and application. Background technique [0002] It is a high-performance semi-steel tire tread that can be used in all seasons. Its performance is mainly reflected in three aspects: high wear resistance, high wet skid resistance and low rolling resistance. Usually the rolling resistance and wet skid resistance of tires are mutually restrictive, how to provide a kind of low rolling resistance, high wet skid resistance four-season semi-steel tire tread compound is an urgent problem to be solved at present. [0003] Raw rubber is the main factor affecting the performance of tires. Different rubber varieties and proportions have great differences in performance; the same rubber variety and proportion, and different additives will also cause differences in performance. The four-season tread compound has low roll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08L9/00C08K13/02C08K3/36C08K3/22C08K3/04C08K5/3437C08K5/18B29B7/28B60C1/00
CPCB29B7/286B60C1/0016C08K2201/006C08L9/06C08L2205/025C08L2205/035C08L9/00C08L15/00C08L91/00C08L91/06C08L101/00C08K13/02C08K3/36C08K3/04C08K5/09C08K2003/2296C08K3/06Y02T10/86
Inventor 王锋徐晶邢涛徐文龙丛守清
Owner SHANDONG LINGLONG TIRE
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