Master batch and preparation method thereof, and vulcanized rubber and applications thereof

A technology of vulcanized rubber and masterbatch, applied in transportation and packaging, rolling resistance optimization, tire parts, etc., can solve the problems of poor dispersion of silica and montmorillonite, and achieve excellent wear resistance, low rolling resistance, the effect of reducing rolling resistance

Active Publication Date: 2013-06-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, since silica and montmorillonite are added during the mixing of styrene-but

Method used

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  • Master batch and preparation method thereof, and vulcanized rubber and applications thereof

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Example Embodiment

[0016] The present invention provides a method for preparing a masterbatch, which includes the following steps:

[0017] (1) Under condensation conditions, contact the white carbon black with the silane coupling agent, and the mass ratio of the white carbon black to the silane coupling agent is 1:0.03-0.15;

[0018] (2) Mix and dry layered silicate minerals and quaternary ammonium salts with water;

[0019] (3) Mixing the product (modified layered silicate mineral) obtained in step (2) with the rubber glue liquid obtained by solution polymerization to obtain a suspension, the rubber glue liquid containing a polymer and a first organic solvent, Based on the total weight of the rubber glue liquid, the content of the polymer is 0.6-8% by weight; relative to 100 parts by weight of the polymer, the product obtained in the step (2) is 3-15 parts by weight;

[0020] (4) The product (modified white carbon black) after contact in step (1) is mixed with the suspension obtained in step (3), and ...

Example Embodiment

[0042] Example 1

[0043] (1) 40g white carbon black (specific surface area value 115-175 square meters / g, manufacturer: Rhodia, France, the same below), 2g bis-(γ-triethoxysilylpropyl)-tetra The sulfide and 157.8 g of ethanol were stirred and mixed at 25° C. for 4 hours, and then heated at 100° C. for 2.5 hours to remove the volatile matter therein, and 37 g of modified silica was obtained.

[0044] (2) 7g montmorillonite (average interlamellar spacing 1.3nm, manufacturer: Zhejiang Fenghong Clay Chemical Co., Ltd., the same below), 2.1g octadecyltrimethylammonium chloride and 350g water are stirred at 65℃ Mixing for 4 hours, and then drying to obtain 7 g of modified montmorillonite, the average interlamellar spacing of the modified montmorillonite measured by X-ray diffraction is 2.8 nm.

[0045] (3) 7g of the modified montmorillonite obtained in step (2) and 350g of cyclohexane were stirred and mixed at 70°C for 4 hours. The mixture was polymerized with 1.67L of butadiene-styrene...

Example Embodiment

[0050] Example 2

[0051] (1) 31g white carbon black, 2.48g bis-(γ-triethoxysilylpropyl)-tetrasulfide and 98.2g methanol were stirred and mixed at 10°C for 8 hours, and then heated at 95°C for 3 hours The volatile matter was removed to obtain 30 g of modified silica.

[0052] (2) 3g of montmorillonite, 0.3g of dodecyltrimethylammonium chloride and 90g of water were stirred and mixed at 50°C for 1 hour, and then dried to obtain 3g of modified montmorillonite, which was measured by X-ray diffraction The average interlamellar spacing of the modified montmorillonite is 3.2 nm.

[0053] (3) 3g of modified montmorillonite obtained in step (2) and 90g of benzene were stirred and mixed at 55°C for 1 hour. The mixture is polymerized with 5L of the butadiene-styrene copolymer glue solution (the solvent is cyclohexane; the solid content is 20g / L, and the weight average molecular weight of the butadiene-styrene copolymer is 240,000. It is obtained by polymerizing butadiene and styrene at a fe...

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Abstract

The invention provides a master batch and a preparation method thereof. The method comprises the following steps that: (1) under a condensation condition, white carbon black contacts a silane coupling agent; (2) a layered silicate mineral, a quaternary ammonium salt and water are mixed and dried; (3) the product obtained from the step (2) and a rubber liquid obtained through solution polymerization are mixed to obtain a suspension, wherein the rubber liquid comprises a polymer and a first organic solvent; and (4) the contacting product obtained from the step (1) and the suspension obtained from the step (3) are mixed and dried. The present invention further provides a vulcanized rubber and applications of the vulcanized rubber in tire preparation, wherein the vulcanized rubber is prepared by carrying out mixing and vulcanization on a mixture, and the mixture comprises the master batch, a vulcanizing agent, a vulcanization activator, an accelerator and an anti-aging agent. With the present invention, the obtained vulcanized rubber has characteristics of low rolling resistance, good wet skid resistance and excellent abrasion resistance, wherein rolling resistance, fuel consumption and the like of the tire prepared by the vulcanized rubber can be reduced.

Description

technical field [0001] The present invention relates to a method for preparing a masterbatch and the masterbatch prepared by the method, and also relates to a vulcanized rubber containing the above-mentioned masterbatch and its application. Background technique [0002] With the continuous aggravation of energy crisis and environmental pollution, people pay more and more attention to energy saving and environmental protection. In order to reduce fuel consumption and greenhouse gas emissions, the automobile industry is also developing towards energy saving and environmental protection. In 2009, the European Union promulgated two new regulations related to tires, requiring maximum tire safety, reduced fuel consumption, and reduced noise. Therefore, the requirement for high-performance tires is more urgent, and the tire tread rubber is required to have low rolling resistance, good wet skid resistance and excellent wear resistance ("devil's triangle" performance). [0003] In ...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L9/00C08L23/16C08K9/06C08K9/04C08K3/36C08K3/34C08J3/22C08J3/24B60C1/00
CPCY02T10/86
Inventor 曲亮靓于国柱王丽丽李传清赵青松李静
Owner CHINA PETROLEUM & CHEM CORP
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