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Tread rubber composite material and preparation method thereof

A technology for tire treads and composite materials, which is applied in the directions of tire treads/tread patterns, special tires, tire parts, etc., can solve the problems such as the difficulty of uniform dispersion of nano-inorganic particles, increase the interfacial force, and the preparation method is simple. , the effect of low cost

Active Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem in the prior art that nano-inorganic particles are difficult to uniformly disperse in the rubber matrix, the present invention provides a tire tread rubber composite material prepared by using a composite powder composed of rubber particles and nano-inorganic particles

Method used

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  • Tread rubber composite material and preparation method thereof
  • Tread rubber composite material and preparation method thereof
  • Tread rubber composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Compound powder preparation:

[0034] The commercially available styrene-butadiene rubber latex (produced by Shanghai Gaoqiao Petrochemical Company, trade name: styrene-butadiene-5050) 4kg with a solid content of 45% by weight is placed in the container, and trimethylolpropane triacrylate 54g is added dropwise under side stirring. , After the dropwise addition is completed, continue stirring for one hour. Then irradiated with a cobalt source at a dose of 0.5 Mrad and a dose rate of 50 Gy / min to obtain an irradiated styrene-butadiene rubber emulsion, wherein the gel content of the rubber particles is 85%, and the average particle size of the particles is 100 nm. The nano-silica (SiO 2 , Shandong Zibo Haina Hi-Tech Materials Co., Ltd., with a particle size range of 20-40nm) mixed with water at a concentration of 5% by weight, dispersed by a high shear disperser, and placed for a period of time. The irradiated styrene-butadiene rubber emulsion and the above-mentioned white...

Embodiment 2

[0050] Compound powder preparation:

[0051] The irradiated styrene-butadiene rubber emulsion is the same as in Example 1. Calcium carbonate (CaCO3, Beijing University of Chemical Technology, with an average particle size of 40 nm) was mixed with water at a concentration of 5% by weight, dispersed by a high shear disperser, and left for a period of time. The irradiated styrene-butadiene rubber emulsion and the above-mentioned calcium carbonate slurries are matched in a ratio of 50:50 of their respective dry weights, stirred for one hour, then the mixed solution is spray-dried by a spray dryer, and the inlet temperature of the spray dryer is 140~160 ℃, The outlet temperature is 40-60°C, and the dried styrene-butadiene rubber / calcium carbonate composite powder (UFPR / CaCO3) is collected in a cyclone separator. 3 ).

[0052] Preparation of tire tread rubber compound:

[0053] The UFPR / CaCO prepared above was 3 After mixing with styrene-butadiene rubber (same as Example 1) and ...

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Abstract

The invention provides a tread rubber composite material and a preparation method thereof, relating to the technical field of tyres, wherein the tread rubber composite material is prepared from 100 parts by weight of rubber and 2-30 parts by weight of composite powder. The composite powder comprises inorganic particles and rubber particles, wherein the weight ratio of the rubber particles to the inorganic particles is 1:6 to 6: 1. The composite powder is prepared by uniformly mixing and drying raw materials including irradiated synthetic rubber latex and slurry liquid of the inorganic particles. The composite powder can excellently reinforce the rubber so that the tread rubber composite material has the advantages of better mechanical property after aging, lower abrasion consumption, lower fatigue compression themogenesis and higher slippery-resistant performance and higher tearing intensity. Meanwhile, the preparation method of the tread rubber composite material has the advantages of simple process, easiness for operation and industrialization, low cost and wide use range.

Description

technical field [0001] The invention relates to the field of tires, and more particularly, to a tire tread rubber composite material and a preparation method thereof. Background technique [0002] Rolling resistance, wet skid resistance and wear resistance are the "three major driving properties" of tires. The three properties interact and restrict each other, and it is difficult to achieve a balance optimization between the three. Therefore, there is a "magic triangle" of tire performance. called. An ideal tread compound should have comprehensive properties such as low rolling resistance, high wet skid resistance and good wear resistance. The traditional modification method of tread rubber is to adjust the formula of the tread rubber composite material, such as the development and application of new rubber raw materials and new fillers. The preparation of green tread rubber composites by nano-inorganic fillers such as silica is a hot spot in the current research on tread ...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L7/00C08L9/00C08L51/06C08K13/02C08K3/36C08K3/26C08J3/24C08J3/28B60C1/00B60C11/00
Inventor 王庆国张晓红宋志海
Owner CHINA PETROLEUM & CHEM CORP
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