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

A technology of anti-stripping agent and asphalt, which is applied in its preparation and the field of asphalt anti-stripping agent, can solve the problems of complex preparation, poor thermal stability of asphalt anti-stripping agent, and need to improve water damage resistance, and achieve simple preparation method and comprehensive anti-stripping Excellent peeling performance and improved peeling resistance

Active Publication Date: 2021-12-21
JIANGSU SOBUTE NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor thermal stability of the asphalt anti-stripping agent in the prior art, complicated preparation, and the need to improve the water damage resistance of the asphalt after long-term aging, the present invention provides a An asphalt anti-stripping agent that is simple to prepare, has excellent anti-stripping performance, good thermal stability, and can improve the long-term aging performance of asphalt, its preparation method and application

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Add 7.5 parts by mass of dodecylbenzenesulfonic acid, 7.5 parts by mass of sodium lauryl glyceryl ether sulfonate, 15 parts by mass of nonylphenol polyoxyethylene ether NP-40, and 70 parts by mass of aromatic oil into the 80°C reaction kettle at the same time , stirred for 1 h to prepare the asphalt anti-stripping agent.

[0028] Heat the asphalt to 135°C, add 0.3wt% of the above-mentioned asphalt anti-stripping agent, and stir for 1 hour to obtain modified asphalt 1.

Embodiment 2

[0030] Add 10 parts by mass of dodecylbenzenesulfonic acid, 10 parts by mass of sodium lauryl glyceryl ether sulfonate, 15 parts by mass of nonylphenol polyoxyethylene ether NP-30, and 65 parts by mass of furfural extract oil to 60°C for reaction at the same time In the kettle, stir for 0.5h to prepare the asphalt anti-stripping agent.

[0031] Heat the asphalt to 145°C, add 0.2wt% of the above-mentioned asphalt anti-stripping agent, and stir for 0.5h to obtain modified asphalt 2.

Embodiment 3

[0033] Add 10 parts by mass of dodecylbenzenesulfonic acid, 15 parts by mass of sodium lauryl glyceryl ether sulfonate, 10 parts by mass of nonylphenol polyoxyethylene ether NP-20, and 65 parts by mass of aromatic oil into the 80°C reaction kettle at the same time , stirred for 1 h to prepare the asphalt anti-stripping agent.

[0034] Heat the asphalt to 140°C, add 0.2wt% of the above-mentioned asphalt anti-stripping agent, and stir for 1 hour to obtain modified asphalt 3.

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Abstract

The invention discloses an asphalt anti-stripping agent as well as a preparation method and application thereof. The asphalt anti-stripping agent comprises a sulfonic acid compound, nonylphenol polyoxyethylene ether and rubber oil, the asphalt anti-stripping agent is obtained by proportionally adding a sulfonic acid compound, nonylphenol polyoxyethylene ether and rubber oil into a reaction kettle and mixing and stirring at 60-80 DEG C for 0.5-1 hour. The asphalt anti-stripping agent disclosed by the invention has good compatibility with asphalt and is easily dispersed in the asphalt; in addition, the viscosity is low, and the paint is suitable for low-temperature environments in winter; the thermal stability is good, the comprehensive anti-stripping performance is excellent, and the water damage resistance of a mixture aged for a long time can be improved; in addition, raw material sources are wide, and the preparation method is simple and suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of road asphalt additives, in particular to an asphalt anti-stripping agent, its preparation method and application. Background technique [0002] The stones for road paving are divided into acidic stones and alkaline stones. Under normal circumstances, alkaline stones such as limestone have poor wear resistance and cannot meet the anti-skid and wear resistance requirements of asphalt pavement, while acid aggregate stones such as granite, sandstone and quartzite are hard and have good wear resistance, which can meet the requirements of asphalt pavement. Wear resistance and bearing requirements. However, the adhesion between acidic stone and acidic asphalt is poor, and the following problems will occur: 1. It cannot form sufficient strength. 2. Water easily seeps into the road surface, separating the asphalt from the aggregate, resulting in peeling, looseness, and potholes. And other damage, accelerate the damage of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08L71/02C08K5/42
CPCC08L95/00C08L91/00C08L2201/08C08L2205/03C08L71/02C08K5/42
Inventor 程金梁洪锦祥尹华锋熊子佳周锐朱晓斌郭鹏
Owner JIANGSU SOBUTE NEW MATERIALS
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