Rubber asphalt modifier and preparation method thereof

A rubber asphalt and modifier technology, which is applied in the field of rubber asphalt modifier and its preparation, can solve the problems of unreachable industrial production and difficult storage of products, reduce energy consumption and pollution, increase fluidity, increase resistance peeling effect

Inactive Publication Date: 2015-12-30
GUANGXI YUANJING RUBBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the production of rubber-modified asphalt is carried out at the construction site, and the product is not easy to store and cannot be industrialized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method for rubber asphalt modifier, comprising the steps of:

[0024] 1) Waste tire pretreatment: remove the steel wire on the waste tire;

[0025] Waste tire crushing: crush the whole tire into 30-50cm irregular blocks;

[0026] Medium crushing: the strip-shaped rubber blocks are broken into small block-shaped rubber blocks of about 5cm, and 97% of the rubber-containing steel wires are magnetically selected synchronously;

[0027] Rubber-containing steel wire crushing: completely separate the rubber attached to the steel wire from the steel wire;

[0028] Fine crushing: Continuously crush small rubber blocks into 20-mesh rubber particles, and simultaneously completely separate residual steel wires and nylon fibers;

[0029] Flocculation treatment: Put the finely crushed rubber particles into the double-roller machine for repeated rolling and tearing to form loose floc. The rubber particles are repeatedly torn and rubbed back and forth in the roller mac...

Embodiment 2

[0036] A preparation method for rubber asphalt modifier, comprising the steps of:

[0037] 1) Waste tire pretreatment: remove the steel wire on the waste tire;

[0038] Waste tire crushing: crush the whole tire into 30-50cm irregular blocks;

[0039] Medium crushing: the strip-shaped rubber blocks are broken into small block-shaped rubber blocks of about 5cm, and 97% of the rubber-containing steel wires are magnetically selected synchronously;

[0040] Rubber-containing steel wire crushing: completely separate the rubber attached to the steel wire from the steel wire;

[0041] Fine crushing: Continuously crush small rubber blocks into 20-mesh rubber particles, and simultaneously completely separate residual steel wires and nylon fibers;

[0042] Flocculation treatment: Put the finely crushed rubber particles into the double-roller machine for repeated rolling and tearing to form loose floc. The rubber particles are repeatedly torn and rubbed back and forth in the roller mac...

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Abstract

The invention discloses a preparation method for a rubber asphalt modifier. The preparation method comprises the following steps: 1) removing metal, fiber and foreign materials in waste and old rubber and then crushing the waste and old rubber into small-grain flocculent rubber powder; 2) carrying out activation, desulphurization and regeneration on the flocculent rubber powder obtained in the step 1) by using microwave radiation; 3) placing the regenerated rubber powder obtained in the step 2) in an enclosed agitator tank, spraying heated abietic acid type resin acid and carrying out a reaction; and 4) after completion of the reaction in the step 3), carrying out cooling so as to prepare the rubber asphalt modifier. The rubber asphalt modifier can effectively reduce viscosity of modified asphalt in production, decreases production temperature of the modified asphalt, energy consumption and pollution, improves mechanical properties like anti-stripping performance of rubber asphalt and enhances compatibility and temperature-sensitive performance of the modified asphalt.

Description

technical field [0001] The invention belongs to the field of asphalt modification, and in particular relates to a rubber asphalt modifier and a preparation method thereof. Background technique [0002] Waste rubber is a kind of solid waste, and its main source is waste rubber products. Waste rubber products mainly include tires, tapes, hoses and industrial rubber products, among which waste tires are the most. Common methods of dealing with solid waste, such as landfill and incineration, are not suitable for waste rubber products. If they are buried, it will take hundreds of years for their macromolecules to decompose without affecting the soil. If they are burned, the smoke and toxic and harmful gases will seriously pollute the atmosphere. At the same time, more and more waste tires are piled up in the open air for a long time, which not only occupies a large amount of land, but also easily breeds mosquitoes, spreads diseases, and is also easy to cause fires. On the cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L17/00C08L93/04C08J11/10
CPCY02W30/62
Inventor 陈观元
Owner GUANGXI YUANJING RUBBER TECH
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