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A kind of amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof

A technology of sodium hydroxypropyl sulfonate and asphalt emulsifier, which is applied in the fields of sulfonate preparation, organic chemistry, building components, etc., can solve the problems of high requirements for production and experimental equipment, high cost of emulsifier raw materials, and limited sources, and achieve Excellent performance index, good aggregate adhesion, and low production cost

Active Publication Date: 2019-09-06
山东圳谷新材料科技有限公司
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Problems solved by technology

[0005] The general disadvantages of the above-mentioned amphoteric asphalt emulsifiers and their preparation methods are: the cost of raw materials for the preparation of emulsifiers is high, the source is limited, high temperature reactions are required during preparation, and the requirements for production and experimental equipment are relatively high

Method used

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  • A kind of amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof
  • A kind of amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof
  • A kind of amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof

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preparation example Construction

[0029] In order to enrich the kind of amphoteric asphalt emulsifier, the invention provides a kind of preparation method of amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier, comprising the following steps:

[0030] (1) Cocoyl propyl dimethyl tertiary amine, alcohol solvent and acrylic acid are mixed and reacted to obtain reaction intermediate I.

[0031] (2) Add 3-chloro-2-hydroxypropylsulfonate sodium into the reaction intermediate I and react to obtain amide quaternary ammonium salt type sodium hydroxypropylsulfonate asphalt emulsifier.

[0032] In the preferred technical scheme of the present invention, the preparation method of described 3-chloro-2-hydroxypropyl sodium sulfonate comprises the following steps:

[0033] Dissolve sodium bisulfite in water, heat to a certain temperature, then gradually add epichlorohydrin, mix and react to obtain reaction intermediate II, intermediate II is 3-chloro-2-hydroxypropyl sodium sulfonate

[0034...

Embodiment 1

[0054] (1) Preparation of amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier:

[0055] 1) Add 284.5g cocoyl propyl dimethyl tertiary amine, 280g isopropanol in the reactor, heat and stir to dissolve. Then gradually added 77.8g of acrylic acid, stirred at 70°C for 3h.

[0056] 2) Add 122.6g of sodium bisulfite and 392.7g of water into another reactor, stir to dissolve, and heat to 75°C. Then 98.9g of epichlorohydrin was added dropwise, and stirred at 75°C for 3.5h to obtain 3-chloro-2-hydroxypropyl sodium sulfonate aqueous solution.

[0057] The above synthetic intermediate product was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3592cm -1 and 3522cm -1 It is free O-H stretching vibration absorption peak, 3362cm -1 It is the absorption peak of association O-H stretching vibration, 2923cm -1 It is the asymmetric stretching vibration absorption peak of methylene, 2840cm -1 Closed peak f...

Embodiment 2

[0064] (1) Preparation of amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier:

[0065] 1) Add 284.5g cocoyl propyl dimethyl tertiary amine, 280g absolute ethanol in the reactor, heat and stir to dissolve. Then gradually added 77.8g of acrylic acid, stirred at 70°C for 3h.

[0066] 2) Add 122.6g of sodium bisulfite and 392.7g of water into another reactor, stir to dissolve, and heat to 75°C. Then 98.9g of epichlorohydrin was added dropwise, and stirred at 75°C for 3.5h to obtain 3-chloro-2-hydroxypropyl sodium sulfonate aqueous solution.

[0067] 3) The aqueous solution of sodium 3-chloro-2-hydroxypropyl sulfonate prepared in step 2) was added dropwise to the synthesis product in the above step 1), and stirred at 75° C. for 3 h. The amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier was obtained, which was reserved for the emulsified asphalt test.

[0068] (2) Preparation of emulsified asphalt:

[0069] T...

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Abstract

The invention discloses an amide quaternary ammonium salt sodium hydroxypropyl sulfonate asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from coconut oil acyl propyl dimethyl tertiary amine, alcohol solvent, acrylic acid, epoxy chloropropane and sodium hydrogen sulfite according to a molar ratio of 1mol:(4.00-9.00)mol):(1.00-1.10)mol:(1.0-1.15)mol:(1.05-1.25)mol, wherein the alcohol solvent is alcohol, methanol or isopropanol. The asphalt emulsifier is easy-to-obtain in synthesis raw materials, low in production cost, simple in process and needless of high-temperature reaction and can emulsify asphalt different in type, emulsified asphalt prepared by using the asphalt emulsifier is exquisite, uniform and high in storage stability, and cationic emulsified asphalt can be prepared.

Description

technical field [0001] The invention relates to an amide quaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and a preparation method thereof, belonging to the technical field of fine chemicals. Background technique [0002] In road engineering, emulsified asphalt is suitable for asphalt pavement surface treatment, normal temperature asphalt mixture, as well as permeable layer, adhesive layer and sealing layer. It has the advantages of saving energy, prolonging the construction season, improving efficiency, improving construction conditions, and reducing environmental pollution. Asphalt emulsifiers are surfactants that can emulsify asphalt. There are many classification methods for asphalt emulsifiers. According to the type of ions, they mainly include anionic, cationic, nonionic and amphoteric. The amphoteric types are mainly betaine compounds, imidazoline compounds and amino acid compounds. [0003] However, the development of amphoteric asphal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C303/32C07C309/14C08J3/03C08L95/00
Inventor 施来顺巩雪笛于小梦马存飞顾晨阳王天曜
Owner 山东圳谷新材料科技有限公司
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