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Quick-breaking and quick-curing type asphalt emulsifier preparation method

The technology of asphalt emulsifier and solution is applied in the field of preparation of fast-splitting and fast-setting asphalt emulsifier to achieve the effects of good adhesion performance, good storage stability and strong adaptability

Inactive Publication Date: 2013-02-20
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adopt the method of the present invention to prepare fast-cracking fast-setting type asphalt emulsifier and do not have bibliographical information yet

Method used

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  • Quick-breaking and quick-curing type asphalt emulsifier preparation method
  • Quick-breaking and quick-curing type asphalt emulsifier preparation method
  • Quick-breaking and quick-curing type asphalt emulsifier preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of emulsifier

[0021] Add 16.3g (0.05mol) octadecylpropylenediamine, 7.1g (0.075mol) chloroacetic acid, 5.7g (0.075mol) 3-chloro-1-propene, 10g ethanol and 10g isopropanol to the reaction vessel , stirred and reacted at 70~75°C for 4 hours to obtain a hydrocarbyl-substituted betaine-type intermediate solution;

[0022] Add 13.8g (0.07mol) of 30% trimethylamine aqueous solution and 8.6g (0.085mol) of 36% concentrated hydrochloric acid into the reaction vessel, mix well below 40°C, and then drop 5.6 g (0.06mol) epichlorohydrin, and stirred and reacted at this temperature for 5 hours to obtain a quaternary ammonium salt intermediate solution;

[0023] Add 0.06 mol of the above-prepared quaternary ammonium salt intermediate solution dropwise to 0.05 mol of the hydrocarbyl-substituted betaine-type intermediate solution prepared above at 75~80°C, and stir and react at this temperature for 6 hours to obtain fast-cracking fast Condensed asphalt emulsifier.

[00...

Embodiment 2

[0029] Emulsifier preparation

[0030] Add 15 g (0.05 mol) of hexadecylpropylenediamine, 8.1 g (0.075 mol) of 2-chloropropionic acid, 6.8 g (0.075 mol) of 1-chloro-2-butene, and 20 g of isopropanol into the reaction vessel , stirred and reacted at 80-85°C for 4 hours to obtain a hydrocarbyl-substituted betaine-type intermediate solution.

[0031] Add 6.1g (0.06mol) of triethylamine, 15g of water and 7.1g (0.07mol) of 36% concentrated hydrochloric acid into the reaction vessel, mix well below 50°C, then drop 5g into it at 40~45°C (0.055mol) epichlorohydrin, stirred and reacted at 50-55° C. for 5 hours to obtain a quaternary ammonium salt intermediate solution.

[0032] Add 0.055 mol of the above-prepared quaternary ammonium salt intermediate solution dropwise to 0.05 mol of the hydrocarbyl-substituted betaine intermediate solution prepared above at 80-85°C, and stir at this temperature for 6 hours to obtain a fast-cracking and fast-setting type Asphalt emulsifier.

[0033] P...

Embodiment 3

[0038] Preparation of emulsifier

[0039] 20g (0.05mol) N-octadecyltriethylenetetramine, 3.8g (0.05mol) 3-chloro-1-propene, 3.8g (0.025mol) 1-phenyl-3-chloro-1-propene, Add 7.1g (0.075mol) of chloroacetic acid and 20g of ethanol into the reaction vessel, and stir and react at 70~75°C for 5 hours to obtain a solution of a hydrocarbon-substituted betaine-type intermediate.

[0040] Add 13.8g (0.07mol) 30% trimethylamine aqueous solution and 8.6g (0.085mol) 36% concentrated hydrochloric acid into the reaction vessel, mix well below 40°C, then drop 5.6g ( 0.06mol) epichlorohydrin, and stirred at this temperature for 5 hours to obtain a quaternary ammonium salt intermediate solution.

[0041] Add 0.06 mol of the quaternary ammonium salt intermediate solution obtained above dropwise to 0.05 mol of the hydrocarbyl-substituted betaine intermediate solution prepared above at 75~80°C, and stir and react at this temperature for 6 hours to obtain fast cracking and fast setting type asph...

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Abstract

The present invention relates to a quick-breaking and quick-curing type asphalt emulsifier preparation method, which comprises the following specific steps: adding a reaction mixture comprising a long chain fatty amine, chlorinated olefin and halogenated fatty acid to a reaction vessel, adding an alcohol solvent, and carrying out a stirring reaction to obtain an alkyl substituted betaine type intermediate solution; adding aliphatic tertiary amine, water and hydrochloric acid to the reaction vessel to obtain a tertiary amine hydrochlorate solution, then adding epichlorohydrin to the tertiary amine hydrochlorate solution, and carrying out a stirring reaction to obtain a quaternary ammonium salt intermediate solution; and adding the quaternary ammonium salt intermediate solution to the alkyl substituted betaine type intermediate solution in a dropwise manner, and carrying out a stirring reaction to obtain the quick-breaking and quick-curing type asphalt emulsifier. According to the present invention, the quick-breaking and quick-curing type asphalt emulsifier has the following beneficial effects that: an excellent emulsifying property is provided, and petroleum asphalts with different production places and different types can be emulsified; and advantages of uniform and fine asphalt emulsion, good storage stability, strong adaptability to aggregate, good adhesion, and flexible emulsifier molecule structure design, and the like are provided.

Description

technical field [0001] The invention relates to a preparation method of a fast-cracking and fast-setting asphalt emulsifier, belonging to the field of fine organic chemicals. Background technique [0002] Petroleum asphalt is a commonly used raw material in road traffic, construction and other industries. Since petroleum asphalt was used as a road engineering material at the beginning of the last century, its variety and quality have been greatly improved, and its application range has become increasingly wide. The traditional use of road asphalt is to heat the asphalt to a fluid state and then mix it with aggregate or use it directly, and requires a certain degree of fluidity during transportation and construction, resulting in a large amount of energy consumption, environmental pollution, and health hazards for construction workers. . Emulsified asphalt, especially cationic emulsified asphalt, has the advantages of saving energy, improving work efficiency, extending the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/16C07C227/18C08L95/00C08J3/03
Inventor 靳素荣姜单单庞金兴张柯刘雪萍宋珊珊黄红明
Owner WUHAN UNIV OF TECH
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