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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-butadiene rubber, the dispersion effect of silica and montmorillonite in vulcanized rubber is not good.

Method used

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

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Experimental program
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preparation example Construction

[0016] The invention provides a kind of preparation method of masterbatch, and the method comprises the following steps:

[0017] (1) Under condensation conditions, white carbon black is contacted with a 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) mixing layered silicate minerals, quaternary ammonium salts with water, and drying;

[0019] (3) mixing the product (modified layered silicate mineral) obtained in step (2) with the rubber glue obtained by solution polymerization to obtain a suspension, the rubber glue containing a polymer and a first organic solvent, Based on the total weight of the rubber glue, 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) Mix and dry the contacted product (modified white carbon black) described in step (1) with the suspension obtained in step...

Embodiment 1

[0043] (1) 40g white carbon black (the specific surface area value is 115-175 square meters / gram, manufacturer: French Rhodia Company, the same below), 2g bis-(γ-triethoxysilylpropyl)-tetrafluoroethylene 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 volatile matter therein to obtain 37 g of modified white carbon black.

[0044] (2) Stir 7g montmorillonite (average lamellar spacing 1.3nm, manufacturer: Zhejiang Fenghong Clay Chemical Co., Ltd., the same below), 2.1g octadecyltrimethylammonium chloride and 350g water at 65°C Mixed for 4 hours, and then dried to obtain 7 g of modified montmorillonite, the average interlamellar distance of the modified montmorillonite measured by X-ray diffraction was 2.8 nm.

[0045] (3) 7 g of the modified montmorillonite obtained in step (2) and 350 g of cyclohexane were stirred and mixed at 70° C. for 4 hours. The copolymer glue (solvent is cyclohexane; soli...

Embodiment 2

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

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

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

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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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