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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Bibliographische Detailangaben
1. Verfasser:	CHEN GUANYUAN
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	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.