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Process for producing white carbon black/solution polymerized butadiene styrene rubber nano-composite material

A technology of solution-polymerized styrene-butadiene rubber and nano-composite material is applied in the field of preparation of white carbon black and solution-polymerized styrene-butadiene rubber nano-composite material, and can solve problems such as inability to compound, and achieves simple and fast method, simple and convenient process, and convenient preparation. Effect

Inactive Publication Date: 2010-06-09
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the scope of application of this method is polymer emulsion. For solution-polymerized styrene-butadiene glue, starch aqueous solution cannot be compounded with organic solvents.
[0005] The common feature of the above methods is that the aqueous solution of the filler is blended with the latex, and the flocculant is added after stirring evenly, and then the flocculation product is obtained by the method of emulsion coprecipitation, and the nanocomposite material can be obtained after washing and drying, but the above method is only limited. The latex obtained by emulsion polymerization is used as the basic material, but for the glue obtained by solution polymerization, this method is no longer applicable, and there are no reports about the work in this area at home and abroad

Method used

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  • Process for producing white carbon black/solution polymerized butadiene styrene rubber nano-composite material
  • Process for producing white carbon black/solution polymerized butadiene styrene rubber nano-composite material
  • Process for producing white carbon black/solution polymerized butadiene styrene rubber nano-composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 20g of nano-silica powder (TIXOSIL 383 type, purchased from France Rhodia Company) was added to the ethanol solution of 80g / L N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane , where N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane accounts for 5wt% of the white carbon black, stir at room temperature for 12h, after mixing evenly, let the solvent evaporate, and then at 80°C React for 4h to obtain organic nano-silica powder; weigh 3g of this organic nano-silica powder and cyclohexane solvent to mix it into a 20g / L solution, stir evenly, and add to a solid content of 0.1g / L ml, a volume of 1000ml of solution-polymerized styrene-butadiene rubber, stirred at a water bath temperature of 30°C for 36h, dried after desolventization to obtain the white carbon black / solution-polymerized styrene-butadiene rubber nanocomposite material containing 3wt% white carbon black (total Gel-1). Table 1 shows the comparison of the parameters of co-coagulation gel-1 and SSBR-1 in this example.

...

Embodiment 2

[0040] 20g of nanometer white carbon black powder (TIXOSIL 383 type, purchased from France Rodi Industry Company) was added to the ethanol solution of 100g / L N-(β-aminoethyl)-γ-aminopropyltriethoxysilane Among them, N-(β-aminoethyl)-γ-aminopropyltriethoxysilane accounted for 10wt% of the white carbon black, stirred at room temperature for 18h, after mixing evenly, left to stand to evaporate the solvent, and then at 90 ℃ for 1 hour to obtain organic nano-silica powder; weigh 3g of the organic nano-silica powder and cyclohexane solvent to prepare a 60g / L solution, stir evenly, and add to a solid content of 0.05 g / ml and a volume of 2000ml solution-polymerized styrene-butadiene rubber solution, stirred at a water bath temperature of 40°C for 24 hours, dried after removing the solvent to obtain a silica / solution-polymerized styrene-butadiene rubber nanocomposite material containing 3wt% white carbon black (co-coagulation gel-2). Table 3 shows the comparison of the parameters of c...

Embodiment 3

[0048] 20g of nano-silica powder (TIXOSIL 383 type, purchased from France Rhodia Company) was added to the ethanol solution of 1g / L N-(β-aminoethyl)-γ-aminopropyltriethoxysilane Among them, N-(β-aminoethyl)-γ-aminopropyltriethoxysilane accounted for 7wt% of the white carbon black, stirred at room temperature for 6h, after mixing uniformly, left to stand to evaporate the solvent, and then at 80 React at ℃ for 3 hours to obtain organic nano-silica powder; weigh 7g of the organic nano-silica powder and cyclohexane solvent to form a 100g / L solution, stir evenly, and add to the solid content of 0.08 g / ml and a volume of 1250ml solution-polymerized styrene-butadiene rubber solution, stirred at a water bath temperature of 50°C for 6 hours, and dried after removing the solvent to obtain a silica / solution-polymerized styrene-butadiene rubber nanocomposite material containing 7wt% white carbon black (co-coagulated gel-3). Table 5 shows the comparison of the parameters of co-coagulation...

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Abstract

The invention relates to a method for preparing a white carbon black / solution-polymerized styrene-butadiene rubber nano composite material. In the invention, nano white carbon black powder and silanecoupling agent are fully mixed and condensation reaction is carried out at high temperature, organic modified nano white carbon black powder is obtained and added into solution-polymerized styrene-butadiene; the mixture of the white carbon black powder and solution-polymerized styrene-butadiene is stirred and removes solvent and then dried, thus obtaining the silicon dioxide / solution-polymerized styrene-butadiene rubber nano composite material prepared by co-polymerization. The invention expands the range of methods for preparing the nano composite material with solution composition. The adopted method using the organically modified white carbon black is simple and easy for operation and the solution composite technique is fast and convenient with low cost. The prepared co-polymerized rubber can be taken as master batch and is added with the white carbon black or added with other fillings for preparing novel nano composite material. The physical and mechanical properties and dynamic mechanical property of the rubber prepared by the method are better than the properties of coordinative amount of filling prepared by mechanical mixing method and the composition speed of subsequent fillings of the rubber prepared by the method is faster than that prepared by the mechanical method.

Description

technical field [0001] The invention relates to the technical field of preparation of a white carbon black and rubber composite material, in particular to a preparation method of a white carbon black and solution-polymerized styrene butadiene rubber nanocomposite material. Background technique [0002] In recent years, the preparation of organic polymer / inorganic nanoparticle composites has become one of the hot research topics in various countries. With the development of automobiles in the direction of high speed, safety, energy saving and comfort, the requirements for high performance tires are also increasing year by year, which requires tire treads to have good wet skid resistance, excellent wear resistance, low rolling resistance characteristics. Since the 1990s, silica has been widely used as a reinforcing filler in tire tread formulations, so that the above-mentioned "devil triangle" performance required by tire treads can be more clearly balanced. [0003] CN19001...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08K3/36C08K9/06
Inventor 赵素合刘晓张兴英吴友平
Owner BEIJING UNIV OF CHEM TECH
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