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A kind of preparation method of powder modified asphalt matrix

A technology of modified asphalt and matrix, applied in building components, building insulation materials, buildings, etc., can solve the problems of inability to achieve high solid content water dispersion, demulsification, loss of water emulsion, etc.

Active Publication Date: 2020-07-31
甘肃西盟公路新材料科技有限公司
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Problems solved by technology

But it also has certain defects. If the quality control is not good, it will cause demulsification and loss of water emulsification. In addition, it cannot achieve high solid content aqueous dispersion (easy to coagulate), nor can it form too low solid content aqueous dispersion (easy to coagulate). layering), which pose serious problems for applications

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  • A kind of preparation method of powder modified asphalt matrix
  • A kind of preparation method of powder modified asphalt matrix
  • A kind of preparation method of powder modified asphalt matrix

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Embodiment Construction

[0021] The present invention is further described below:

[0022] A kind of preparation method of powder modified asphalt matrix, is characterized in that, comprises the following steps:

[0023] a. Add 100g of asphalt to the high-shear emulsifier and raise the temperature to 120-150°C, add 0.1-20g of emulsifier 1 and 50-500g of desalinated water, the stirring speed is 5000-30000r / min, and the temperature is controlled at 10-80°C, Make asphalt emulsion after stirring for 15-60min;

[0024] b. Heat 100g of coating agent and 50-1000g of soft water to 70-80°C, add them directly into the high-shear emulsifier, control the stirring speed at 10000-30000r / min to form a paste coating agent slurry, take out stand-by;

[0025] c. Add asphalt emulsion and modifier emulsion to the coagulation kettle and mix evenly to obtain a mixed emulsion whose dry basis mass ratio is 1:(0.1-10), and the dry basis ratio of the mixed emulsion and the coating agent slurry is 1 : (0.5-1.5) calculate the...

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Abstract

The invention relates to a preparation method for a powder-morphological modified asphalt matrix, and especially relates to a preparation method for a powder modified asphalt matrix. According to theinvention, characteristics including a large specific surface area and a strong physical adsorption effect of a nanoparticle covering agent are utilized, through gradually-varied control of an emulsion breaking process, asphalt particles in emulsified asphalt and modification particles are mixed, under the covering agent effects, product particle sizes are gradually controlled and adjusted, and therefore the powder modified asphalt matrix product is prepared.

Description

technical field [0001] The invention relates to a preparation method of a powder modified asphalt matrix, in particular to a preparation method of a powder modified asphalt matrix. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is liquid, semi-solid or solid. It is a waterproof, moisture-proof and anti-corrosion organic gelling material. However, most of asphalt and its derivatives require hot construction, which makes the construction difficult, especially the energy consumption. At the same time, during the heating process of asphalt, a large amount of toxic and harmful substances are released, which inevitably causes environmental pollution. For emulsified asphalt, its advantage is to realize the cold construction method of asphalt in application, especially the application under water-based conditions, which has good adaptability. But it also has certain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/08C08L95/00C08L9/04C08L7/02C08L9/02C08K3/04C08K3/16C08K3/36C08K3/34C08K3/26
Inventor 艾纯金李树毅陈浩张国强王策
Owner 甘肃西盟公路新材料科技有限公司