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Asphalt modifier and preparation method thereof

A technology of asphalt modifier and surfactant, applied in the field of asphalt modifier and its preparation, can solve the problems of difficult treatment, pollute the environment, occupy land resources, etc., achieve broad application prospects, improve comprehensive performance, and improve high temperature stability sexual effect

Inactive Publication Date: 2012-08-15
LUZHOU NORTH CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment methods of waste tires are stacking, landfilling, incineration, etc., which have problems such as polluting the environment, occupying land resources, and processing difficulties.

Method used

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  • Asphalt modifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 Preparation of asphalt modifier of the present invention

[0032] Take 100.0g of mixed silane (mixed silane is a liquid-solid mixture with fluidity obtained by wet dust removal during the synthesis of methylchlorosilane monomer, the same below), surfactant Tween-402.0g, granular 900.0g of tire rubber powder with a diameter of 10 to 80 meshes, mix, stir and heat to 130-220°C, then maintain 130-220°C to react for 20-30 minutes, cool down and discharge the material to obtain an asphalt modifier.

Embodiment 2

[0033] Example 2 Preparation of asphalt modifier of the present invention

[0034] Take 300.0g of mixed silane, 4.0g of surfactant Tween-60, and 700.0g of tire rubber powder with a particle size of 10-80 mesh, mix, stir and heat to 130-220℃, and then maintain 130-220℃ for reaction 20-30min, cooling and discharging to obtain asphalt modifier.

Embodiment 3

[0035] Example 3 Preparation of asphalt modifier of the present invention

[0036] Take 500.0g of mixed silane, 5.0g of surfactant Tween-65, and 500.0g of tire rubber powder with a particle size of 10 to 80 mesh, mix well, stir and heat to 130-220℃, and then maintain 130-220℃ for reaction 20-30min, cooling and discharging to obtain asphalt modifier.

[0037] The asphalt modifiers prepared in Examples 1-3 were added to 70# base asphalt at 2wt% respectively, mixed well, and then heated to 180°C, stirred at a speed of 500r / min and continued to react for 30min; when the temperature was cooled to 150°C , Transfer the material to a colloid mill, grind for 10 minutes, cool down and discharge the material to obtain an asphalt product modified with the modifier of the present invention, and measure its performance. The results are shown in Table 1.

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Abstract

The invention relates to asphalt modifier and a preparation method thereof, belonging to the field of chemical industry. The invention aims to provide an asphalt modifier which can improve the comprehensive perforamnce of asphalt. The asphalt modifier provided by the invention is prepared from the following components in part by weight: 0.1-0.5 part of mixed silane, 0.02-0.05 part of surfactant and 0.5-0.9 part of tire rubber powder, wherein the mixed silane is a liquid-solid mixture with liquidity obtained by wet dust collection in the synthesis process of methyl chlorosilane monomer.

Description

Technical field [0001] The invention relates to an asphalt modifier and a preparation method thereof, and belongs to the chemical industry field. Background technique [0002] Mixed silane is a by-product of organosilicon monomer. It is a liquid-solid mixture with fluidity due to wet dust removal during the synthesis of methylchlorosilane monomer. The total emission of mixed silane accounts for approximately The mass fraction of mixed monomers is 2 to 5%, and the mass ratio of liquid to solid is about 4:1. The liquid phase is mainly high-boiling organosilane liquid, and the solid phase is mainly suspended silicon powder, high content of copper and other metals. If this part of the material is exposed to the air, it will burn and / or form a strong acid mist and liquid. Discharge will cause serious pollution to the environment and must be treated in a harmless manner. There is no systematic research on the harmless treatment of mixed silanes in China. When the production capacity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08K5/54C08K3/02C08K3/08
Inventor 李争鸣葛强唐荣娟
Owner LUZHOU NORTH CHEM IND
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