Rubber asphalt modifier and preparation method thereof

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 o...

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description 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.
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subjects AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL PROCESSES OF COMPOUNDING
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
title Rubber asphalt modifier and preparation method thereof
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