Modified rubber asphalt and preparation method thereof

A technology of modified rubber and rubber asphalt, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of poor rutting resistance of the road surface, easy to break, and brittle road surface, so as to improve the comprehensive performance and wide application Prospects, the effect of broadening application fields and market space

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

Although rubber asphalt has many advantages, sometimes it still cannot meet the application places with higher requirements, especially in some areas where the high temperature in summer makes the road surface rutting resistance worse, and the cold winter makes the road surface brittle and prone to fracture

Method used

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  • Modified rubber asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 Preparation of modified rubber asphalt of the present invention

[0044]Take by weighing 70# matrix asphalt 1000.0g, tire rubber powder 500.0g, mixed silane 15.0g (mixed silane is a kind of liquid-solid mixture with fluidity obtained by wet dust removal in the synthesis process of methyl chlorosilane monomer, The same below), mix well, then raise the temperature to 160°C, stir at a speed of 400r / min and continue to react for 60min; permanent rubber asphalt products.

Embodiment 2

[0045] Example 2 Preparation of modified rubber asphalt of the present invention

[0046] Weigh 1000.0g of 70# base asphalt, 500.0g of tire rubber powder, mix 75.0g of silane, mix well, then raise the temperature to 180°C, stir at a speed of 500r / min and continue to react for 30min; Put it into a colloid mill, grind for 10 minutes, cool down and discharge to obtain a mixed silane-modified rubber asphalt product.

Embodiment 3

[0047] Example 3 Preparation of modified rubber asphalt of the present invention

[0048] Weigh 1000.0g of 70# base asphalt, 500.0g of tire rubber powder, mix 150.0g of silane, mix well, then raise the temperature to 200°C, stir at a speed of 700r / min and continue to react for 30min; Put it into a colloid mill, grind for 10 minutes, cool down and discharge to obtain a mixed silane-modified rubber asphalt product.

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Abstract

The invention relates to modified rubber asphalt and a preparation method thereof, belonging to the field of chemical industry. The invention aims to provide modified rubber asphalt with good comprehensive perforamnce. The modified rubber asphalt provided by the invention is prepared from the following components in part by weight: 0.01-0.1 part of mixed silane and 1 part of rubber asphalt, or 0.01-0.1 part of mixed silane, 0.6-0.7 part of matrix asphalt and 0.3-004 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 modified rubber asphalt and a preparation method thereof, belonging to the field of chemical industry. Background technique [0002] Mixed silane is a by-product of organosilicon monomer. It is a liquid-solid mixture with fluidity obtained by wet dust removal during the synthesis of methylchlorosilane monomer. The total emission of mixed silane accounts for about The mass fraction of mixed monomers is 2-5%, and the liquid-solid mass ratio is about 4:1. The liquid phase is mainly high-boiling organic silane liquid, and the solid phase is mainly suspended silicon powder, high-content copper and other metals. If these materials are exposed to the air, they will burn and / or form strong acid mist and liquid, so if they are directly The 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 mono...

Claims

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Application Information

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