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A kind of asphalt modification additive

An asphalt modifier and asphalt modification technology, which is applied in the field of asphalt modifiers, can solve the problems of insignificant changes in asphalt performance and large usage, and achieve the advantages of reducing early road diseases, decreasing penetration, and simple application process. Effect

Inactive Publication Date: 2015-07-29
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are also literatures that use rock asphalt as a modifier of asphalt, but when rock asphalt is added, the amount of use is large, and the performance of the final asphalt does not change significantly

Method used

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  • A kind of asphalt modification additive
  • A kind of asphalt modification additive
  • A kind of asphalt modification additive

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: the preparation of formula I compound

[0021] Add 0.12mol of 4-fluorophenylbutyric acid, 0.24mol of thionyl chloride, 80ml of toluene and 0.2ml of dimethylformamide (DMF) into the reaction flask, and react at 80°C (uncorrected) for 6h. The solvent and the remaining thionyl chloride were distilled off under reduced pressure to obtain a yellow liquid, which was dissolved in 40 ml of acetone to obtain a 4-fluorophenylbutyryl chloride solution.

[0022] Add 0.1mol of 3,5-difluoro-2-hydroxy-pyridine, 100ml of acetone and 0.11mol of m-picolinic acid into the reaction flask in turn; add all the prepared 4-fluorophenylbutyryl chloride solution under ice bath, and react at room temperature 10h; filter, add 280ml (1mol / L) dilute hydrochloric acid to the filtrate, stir, crystallize, filter; the filter cake is washed successively with distilled water (50ml×2), petroleum ether 60ml, ethanol-water (ethanol:water volume ratio=3:7 ) (50ml×2) to wash the filter cake and ...

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Abstract

The invention provides an asphalt modified additive, and a preparation method and applications thereof. A modifier is an organic compound, and is shown as the structural formula I as shown in the specification. The obtained asphalt has excellent anti-rutting performance, anti-water damage performance, and anti-aging capability.

Description

technical field [0001] The invention relates to the field of asphalt modifiers, in particular to a compound used as an asphalt modifier and its application. Background technique [0002] With the rapid development of my country's social economy, the traffic volume has increased sharply, and road construction has also embarked on a stage of rapid development. By the end of 2011, the total mileage of national expressways has exceeded 80,000 kilometers, ranking second in the world. By 2020, China The mileage of the expressway will reach 100,000 kilometers. In high-grade highways, asphalt pavement is widely used for its good mechanical properties, flat and wear-resistant surface, stable and comfortable driving performance, low dust, low noise, short construction period and easy maintenance and repair. In recent years, more than 90% of the newly built high-grade pavement in my country adopts the structure form of asphalt pavement. Most highway asphalt pavements are in good condi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D213/80C08K5/3432C08L95/00
CPCC07D213/80C08K5/3432C08L95/00
Inventor 易富梁冰金艳杨宇婷朱凤薇
Owner LIAONING TECHNICAL UNIVERSITY
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