High-concentration SBR (styrene butadiene rubber) modified emulsified asphalt and preparation method thereof

An emulsified asphalt, high-concentration technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of high-concentration SBR modified emulsified asphalt, etc. little effect

Active Publication Date: 2014-02-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has been no report of high-concentration SBR modified emulsified asphalt that can be diluted and used

Method used

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  • High-concentration SBR (styrene butadiene rubber) modified emulsified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Taking the production of 1000 grams of the product of the present invention as an example, the raw materials used and the proportioning thereof are:

[0039] Asphalt: 750 grams, Vincent Yi heavy mixed crude oil propane asphalt produced by Maoming Petrochemical, the penetration is greater than 50, and the dynamic viscosity at 60°C is 136.

[0040] SBR latex: 40 grams, the SBR-40 of Zibo Qiaolong Company, its solid concentration is 40%.

[0041] Emulsifier: 23 grams, FS-C01 cationic asphalt emulsifier produced by Fuster Chemical Company.

[0042] Water: 187 grams, clear and transparent tap water without impurities.

[0043] First add the emulsifier and SBR latex into the water and stir evenly to form a soap solution and heat it to 65°C, and heat the asphalt to 140°C. Then add the hot soap solution into the emulsification equipment for circulation, then add hot asphalt while circulating and shearing, and the speed of adding the hot asphalt should be controlled so that th...

Embodiment 2

[0045] Taking the production of 1000 grams of the product of the present invention as an example, the raw materials used and the proportioning thereof are:

[0046]Asphalt: 780 grams, grade B road asphalt produced by Maoming Petrochemical Co., Ltd., with a penetration of more than 50 and a dynamic viscosity at 60° C. of 145.

[0047] SBR latex: 48 grams, 40 type styrene-butadiene latex of Shandong Xianyuan Chemical Technology Co., Ltd., its solid content concentration is 40%.

[0048] Emulsifier: 28 grams, JY-R2H cationic asphalt emulsifier produced by Jinyang Material Technology Company.

[0049] Water: 144 grams, clear and transparent tap water without impurities.

[0050] First add the emulsifier and SBR latex into the water and stir evenly to form a soap solution and heat it to 70°C, and heat the asphalt to 150°C. Then add the hot soap solution into the emulsification equipment for circulation, then add hot asphalt while circulating and shearing, and the speed of adding ...

Embodiment 3

[0052] Taking the production of 1000 grams of the product of the present invention as an example, the raw materials used and the proportioning thereof are:

[0053] Asphalt: 690 grams, sand-in-Kuwait mixed crude oil No. 70 A-grade road asphalt produced by Maoming Petrochemical, the penetration is greater than 50, and the dynamic viscosity at 60°C is 190.

[0054] SBR latex: 32 grams, the SBR-40 of Zibo Qiaolong Company, its solid concentration is 40%.

[0055] Emulsifier: 20 grams, JY-R4 cationic asphalt emulsifier produced by Jinyang Material Technology Co., Ltd.

[0056] Water: 258 grams, clear and transparent tap water without impurities.

[0057] First add the emulsifier and SBR latex into the water and stir evenly to form a soap solution and heat it to 60°C, and heat the asphalt to 130°C. Then add the hot soap solution into the emulsification equipment for circulation, then add hot asphalt while circulating and shearing, and the speed of adding the hot asphalt should be...

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Abstract

The invention discloses a high-concentration SBR (styrene butadiene rubber) modified emulsified asphalt which is composed of the following components in percentage by mass: 65-80% of asphalt, 2-6% of SBR latex, 1.2-3.5% of emulsifier and a proper amount of water. The invention also discloses a preparation method of the SBR modified emulsified asphalt. The modified emulsified asphalt has high-concentration solid content, and can be diluted by water into different concentrations according to the construction demands in the transportation process from the production plant to the construction site, thereby greatly reducing the storage space and transportation cost and enhancing the economic benefit.

Description

technical field [0001] The invention relates to an emulsified asphalt, in particular to a high-concentration SBR modified emulsified asphalt, and also relates to a preparation method of the SBR modified emulsified asphalt. Background technique [0002] Styrene-butadiene rubber (SBR) modified emulsified asphalt is a kind of emulsified asphalt product modified by adding polymer SBR. It not only has good low temperature performance, but also has good bonding performance and anti-aging performance, so It is being promoted and applied more and more widely in highway engineering and construction engineering. There are three methods for preparing SBR modified emulsified asphalt. The first method is to stir the SBR latex and emulsifier evenly to make a soap solution, and then emulsify it with asphalt through a colloid mill to make a product. The second is to prepare the emulsified asphalt first, and then mix and stir the SBR latex into the emulsified asphalt to form a product. The...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L9/08
Inventor 何靖斌钟向宏华献君骆新平欧晔许宏杨海兰李国民梁红梅苏亦平
Owner CHINA PETROLEUM & CHEM CORP
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