Carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier and preparation method thereof

A technology of sodium hydroxypropyl phosphate and asphalt emulsifier, which is applied in chemical instruments and methods, phosphorus organic compounds, organic chemistry, etc., and can solve the problems of high requirements for production and experimental equipment, high cost of emulsifier raw materials, high temperature reaction, etc. Achieve excellent performance indicators, good aggregate adhesion and storage stability, and improve stability

Active Publication Date: 2019-04-30
山东圳谷新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 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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  • Carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier and preparation method thereof
  • Carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier and preparation method thereof
  • Carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier and preparation method thereof

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preparation example Construction

[0053] For above asphalt emulsifier, the present invention also provides its preparation method, comprises the following steps:

[0054] (1) N-hydrogenated tallow-1,3-propylenediamine, alcohol solvent and acrylic acid are mixed and reacted to obtain reaction intermediate I, and the structural formula of said reaction intermediate I is

[0055]

[0056] (2) Dissolve sodium dihydrogen phosphate in water, heat to a certain temperature, then gradually add epichlorohydrin, and mix and react to obtain reaction intermediate II, which is 3-chloro-2-hydroxypropyl phosphate sodium

[0057]

[0058] (3) Add the reaction intermediate II to the reaction intermediate I, and mix and react to obtain the carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier;

[0059] Or, include the following steps:

[0060] (1) N-hydrogenated tallow-1,3-propylenediamine, alcohol solvent and acrylic acid are mixed and reacted to obtain reaction intermediate I...

Embodiment 1

[0089] (1) Preparation of carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier:

[0090] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of isopropanol into the reactor, heat and stir to dissolve. Then gradually add 219.8g of acrylic acid, and stir at 70°C for 3h.

[0091] 2) Add 491.4g sodium dihydrogen phosphate (NaH 2 PO 4 2H 2 O) and 966g of water, stir to dissolve, and heat to 85°C. Then 194.1 g of epichlorohydrin was added dropwise, and stirred at 85° C. for 7.5 h to obtain an aqueous solution of 3-chloro-2-hydroxypropyl phosphate sodium.

[0092] The above synthetic intermediate product was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3445cm -1 It is the stretching vibration absorption peak of O-H, 1635cm -1 C-O asymmetric stretching vibration absorption peak, 1297cm -1 It is the stretching vibration absorption peak of P=O, 1093cm -1 It is the ...

Embodiment 2

[0104] (1) Preparation of carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier:

[0105] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of isopropanol into the reactor, heat and stir to dissolve. Then gradually add 219.8g of acrylic acid, and stir at 70°C for 3h.

[0106] 2) Add 1037.7g trisodium phosphate (Na 3 PO 4 12H 2 O) and 1344g of water, stirred and dissolved, heated to 42°C. Then 194.1 g of epichlorohydrin was added dropwise, and stirred at 42° C. for 5 h to obtain an aqueous solution of sodium glycidyl phosphate.

[0107] The above-mentioned intermediate product synthesized was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3015cm -1 It is the absorption peak of epoxy group C-H stretching vibration, 1673cm -1 C-O asymmetric stretching vibration absorption peak, 1443cm -1 is the asymmetric bending vibration of methylene, 1360cm -1 It is the st...

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Abstract

The invention discloses a carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier and a preparation method thereof, wherein the asphalt emulsifier is prepared from the following raw materials: N-hydrogenated tallow propane diamine, an alcohol-based solvent, acrylic acid, epichlorohydrin and sodium dihydrogen phosphate according to a molar ratio of 1:(5.00-11.00):(3.00-3.10):(2.00-2.30):(3.00-3.45), or N-hydrogenated tallow propane diamine, an alcohol-based solvent, acrylic acid, epichlorohydrin, trisodium phosphate and hydrochloric acid according to amolar ratio of 1:(5.00-11.00):(3.00-3.10):(2.00-2.30):(2.60-2.99):(2.66-3.06), wherein the alcohol-based solvent is ethanol, methanol or isopropanol. According to the present invention, the method has advantages of easily available synthetic raw materials, low production cost, simple process and no requirement of high temperature reaction; and the prepared carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier can emulsify a variety of asphalts with different types, is fine and uniform, has good storage stability, and can be used for preparing cationic emulsified asphalt.

Description

technical field [0001] The invention relates to a carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier and a preparation method thereof, belonging to the technical field of fine chemicals. Background technique [0002] Asphalt emulsifier is a surfactant used for emulsification of asphalt. When a small amount is added, the surface tension of water can be greatly reduced. It can obviously change the interface properties and state of the system, thereby producing wetting, emulsification, Foaming, dispersing, antistatic, lubricating and a series of functions, in order to meet the requirements of practical applications. [0003] 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 c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08L95/00C07F9/09
CPCC07F9/091C08J3/03C08J2395/00C08L95/005
Inventor 施来顺巩雪笛于小梦马存飞
Owner 山东圳谷新材料科技有限公司
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