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Asphalt anti-ageing agent as well as preparation method and application thereof

An anti-aging agent and asphalt technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of asphalt's easy aging performance, and achieve the effects of improving performance indicators, improving anti-aging ability, and low production costs

Inactive Publication Date: 2015-02-18
WEIFANG HUIZHI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes an asphalt antiaging agent and its preparation method and application, which solves the problems of easy aging and poor performance of road petroleum asphalt in the prior art

Method used

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  • Asphalt anti-ageing agent as well as preparation method and application thereof
  • Asphalt anti-ageing agent as well as preparation method and application thereof
  • Asphalt anti-ageing agent as well as preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0028] See attached figure 1 , a preparation method of asphalt anti-aging agent, comprising the following steps:

[0029] 1) Take aromatic hydrocarbon oil, add α-naphthylamine at 30-150°C, stir well, and form an aromatic hydrocarbon solution of α-naphthylamine after melting;

[0030] 2) Add emulsifier and water respectively to the aromatic hydrocarbon solution obtained in step 1) at 40-100°C, and stir vigorously to obtain the anti-aging agent.

[0031]In step 2), the temperature of the aromatic hydrocarbon solution is 50-90° C., the speed of vigorous stirring is 50-120 r / min, and the stirring time is 10-100 min.

[0032] In step 2), the temperature of the aromatic hydrocarbon solution is 70-80° C., the rotation speed of the vigorous stirring is 60-100 r / min, and the stirring time is 20-60 min.

[0033] In the step 1), the temperature of the aromatic oil is 50-120°C, and the stirring time is 0.5-5h.

[0034] In the step 1), the temperature of the aromatic oil is 50-80°C, and...

Embodiment 1

[0038] Weigh respectively the aromatic oil of 35% by weight (aromatic oil is crude oil wax oil fraction extraction oil), the pure α-naphthylamine reagent of 50% by weight, the nonylphenol polyoxyethylene ether (NP- 7) and 5% water of percentage by weight, standby;

[0039] Put the aromatic hydrocarbon oil in a reaction kettle, add the above-mentioned α-naphthylamine at 80°C, stir well, and form an aromatic hydrocarbon solution of α-naphthylamine after melting;

[0040] Add the above-mentioned nonylphenol polyoxyethylene ether and water to the above-mentioned aromatic hydrocarbon solution at 100°C, stir vigorously, and cool to obtain the anti-aging agent.

[0041] Gained antiaging agent is denoted as AR-1, and this antiaging agent is made up of aromatic oil 35wt%, α-naphthylamine 50wt%, nonylphenol polyoxyethylene ether 10wt% and water 5wt%, and it can be used for producing antiaging asphalt , improve the thermal storage period of asphalt, or produce petroleum asphalt containi...

Embodiment 2

[0043] Weigh respectively the aromatic oil of 55% by weight (the aromatic oil is furfural extract oil), the α-naphthylamine of 30% by weight, the nonylphenol polyoxyethylene ether (NP-20) of 5% by weight and the weight percent 10% of water, reserve;

[0044] Put the aromatic hydrocarbon oil in a reaction kettle, add the above-mentioned α-naphthylamine at 120°C, stir thoroughly for 4 hours, and form an aromatic hydrocarbon solution of α-naphthylamine after melting;

[0045] Add the above-mentioned nonylphenol polyoxyethylene ether and water to the above-mentioned aromatic hydrocarbon solution at 90°C, and stir at a speed of 50r / min for 60min. After stirring vigorously, cool to obtain the anti-aging agent.

[0046] Gained antiaging agent is denoted as AR-2, and this antiaging agent is made up of aromatic hydrocarbon oil 55wt%, α-naphthylamine 30wt%, nonylphenol polyoxyethylene ether 5wt% and water 10wt%, and it can be used for producing antiaging asphalt , improve the thermal s...

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Abstract

The invention discloses an asphalt anti-ageing agent as well as a preparation method and application thereof, relating to the technical field of pavement petroleum asphalt. According to the asphalt anti-ageing agent, the problems that the existing pavement petroleum asphalt is easy to age and poor in performance are solved. The asphalt anti-ageing agent comprises the following components in percentage by weight: 35wt-55wt% of aromatic hydrocarbon oil, 30wt%-50wt% of alpha-naphthylamine, 5wt%-10wt% of an emulsifying agent and 5wt%-10wt% of water. The preparation method comprises the following steps of adding alpha-naphthylamine into aromatic hydrocarbon oil; after the alpha-naphthylamine is adequately dissolved, adding the emulsifying agent and water so as to obtain an anti-ageing agent; and adding 0.2wt-0.8wt% of the anti-ageing agent into asphalt with temperature of 120-180 DEG C, so as to obtain the asphalt anti-ageing agent. According to the asphalt anti-ageing agent, the ageing resistance of the asphalt can be remarkably improved, especially the attenuation of the ductility and the needle penetration of the asphalt after the asphalt is thermally stored in a thin film drying oven is reduced; the asphalt anti-ageing agent is used for producing and processing the asphalt having unqualified ductility and needle penetration and poor thermal storage performance after being thermally stored in the thin film drying oven, and meanwhile, the service life of the pavement is prolonged.

Description

technical field [0001] The invention relates to the technical field of road petroleum asphalt, in particular to an asphalt antiaging agent and its preparation method and application. Background technique [0002] With the rapid development of social economy and science and technology, the traffic volume has increased sharply, and road construction has also embarked on a stage of rapid development; in high-grade highways, asphalt pavement is characterized by its good mechanical properties, flat and wear-resistant surface, stable and comfortable The advantages of driving performance, small dust, low noise, short construction period and easy maintenance and repair have been widely used. [0003] Asphalt can be mainly divided into three types: coal tar pitch, petroleum pitch and natural pitch. Coal tar pitch is a by-product of coking, petroleum pitch is the residue after crude oil distillation, and natural pitch is stored underground. The asphalt used in road construction is ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K5/01C08K5/18
Inventor 裴建军
Owner WEIFANG HUIZHI CHEM
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