Rapeseed oil new cationic asphalt emulsifier synthetic method

A technology of asphalt and emulsified asphalt, which is applied in the synthesis and practical application of asphalt emulsifiers. It can solve the problems of hydrolysis of amide emulsifiers, reduce interfacial tension, improve interfacial activity and oil phase compatibility, and achieve ultra-low oil-water interfacial tension. Effect

Inactive Publication Date: 2015-06-10
QINGDAO HUICHENG PETROCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, amide emulsifiers are hydrolyzed in water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Weigh a certain amount of the emulsifier in a beaker, add 200ml of water, heat to 50-60°C, stir with a glass rod to dissolve it, and adjust the pH to 2-3 with industrial hydrochloric acid. Then weigh 300g of road petroleum asphalt No. 100, and heat it to 110°C to melt it. Start the colloid mill (preheat it with 60°C hot water before starting), inject the emulsifier aqueous solution into the colloid mill, then slowly pour the asphalt into the colloid mill for emulsification, and put the emulsion into the colloid mill for about one minute. Mineral water bottle, close the colloid mill.

[0021] Weigh 100g of stone, take a certain amount of water and additives, add it to the iron bowl, mix evenly, then weigh a certain amount of emulsified asphalt, pour it into the iron bowl, stir quickly and fully, and start timing, and the record can be mixed time and molding time. The results showed that the emulsification time was 1.5min.

[0022] Emulsification conditions:...

Embodiment 2

[0027] Example 2: Weigh a certain amount of emulsifier in a beaker, add 200ml of water, heat to 50-60°C, stir with a glass rod to dissolve it, and adjust the pH to 2-3 with industrial hydrochloric acid. Then weigh 300AH-90 asphalt and heat it to 120°C to melt it. Start the colloid mill (preheat it with 60°C hot water before starting), inject the emulsifier aqueous solution into the colloid mill, then slowly pour the asphalt into the colloid mill for emulsification, and put the emulsion into the colloid mill for about one minute. Mineral water bottle, close the colloid mill.

[0028] Weigh 100g of stone, take a certain amount of water and additives, add it to the iron bowl, mix evenly, then weigh a certain amount of emulsified asphalt, pour it into the iron bowl, stir quickly and fully, and start timing, and the record can be mixed time and molding time. The emulsification time is 2.3min.

[0029] Emulsification conditions: AH-90 asphalt, pH=2, emulsification measurement is ...

Embodiment 3

[0034] Example 3: Take a certain amount of emulsifier in a beaker, add 200ml of water, heat to 50-60°C, stir with a glass rod to dissolve it, and adjust the pH to 2-3 with industrial hydrochloric acid. Then weigh 300g of Road Petroleum Asphalt No. 180, and heat it to 100°C to melt it. Start the colloid mill (preheat it with 60°C hot water before starting), inject the emulsifier aqueous solution into the colloid mill, then slowly pour the asphalt into the colloid mill for emulsification, and put the emulsion into the colloid mill for about one minute. Mineral water bottle, close the colloid mill.

[0035] Weigh 100g of stone, take a certain amount of water and additives, add it to the iron bowl, mix evenly, then weigh a certain amount of emulsified asphalt, pour it into the iron bowl, stir quickly and fully, and start timing, and the record can be mixed time and molding time.

[0036] Emulsification conditions: No. 180 road petroleum asphalt, pH=2~3, emulsification measuremen...

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PUM

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Abstract

The invention discloses a rapeseed oil new cationic asphalt emulsifier synthetic method, according to the method, a cationic asphalt emulsifier is prepared from rapeseed oil, acid anhydride and mixed amine as raw materials, a new asphalt emulsifier is synthesized by two step reaction of the cationic asphalt emulsifier, and the optimum synthesis reaction conditions of the asphalt emulsifier can be obtained. The CMC value of the target product is 4.89 x 10<-4>mol / L, and is small. Under the critical micelle concentration (CMC), the surface tension is 25.28 mN/m. The synthesized emulsifier is a medium cracking type asphalt emulsifier, and can be widely used in the adhesive layer, fog seal layer, non solvent cold mixing, recycling of asphalt and stabilizing of asphalt pavement substrate.

Description

technical field [0001] The invention relates to the synthesis and practical application of an asphalt emulsifier, belonging to the fields of fine chemical industry and construction engineering. Background technique [0002] Emulsified asphalt is a liquid asphalt that is formed by asphalt and emulsifier under certain process action to produce oil-in-water or water-in-oil (specifically, which package depends on the type of emulsifier). Emulsified asphalt is a kind of road construction material with low viscosity and good fluidity at room temperature, which is the road asphalt that is usually used at high temperature, and is diffused into water through mechanical stirring and chemical stabilization (emulsification). It can be used at room temperature and can be used with cold and damp stones. [0003] Emulsified asphalt is an oil-in-water emulsion, and asphalt emulsifiers can be divided into cationic, anionic, amphoteric and nonionic. Anionic emulsifiers, such as long-chain s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C219/08C07C213/04C08L95/00C08J3/03C04B24/36
Inventor 朱洪学黄喜峰
Owner QINGDAO HUICHENG PETROCHEM TECH
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