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Amido quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and preparation method thereof

A technology of sodium hydroxypropyl phosphate and asphalt emulsifier, applied in chemical instruments and methods, phosphorus organic compounds, organic chemistry, etc., can solve problems such as high requirements for production and experimental equipment, high cost of emulsifier raw materials, and limited sources. Achieve excellent performance indicators, good aggregate adhesion and storage stability, and enhance the effect of charge intensity

Active Publication Date: 2019-03-12
山东圳谷新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Amido quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and preparation method thereof
  • Amido quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and preparation method thereof
  • Amido quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and preparation method thereof

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preparation example Construction

[0089] In view of the above asphalt emulsifier, the present invention also provides its preparation method, which includes the following steps:

[0090] (1) Mixing and reacting octadecylamine, alcohol solvent and double bond-containing amide to obtain reaction intermediate I. The general structural formula of the reaction intermediate I is

[0091] C 18 H 37 N(CH 2 CH 2 CONH z R w ) 2 ;

[0092] That is, when z=2, w=0, R=H, the structural formula is

[0093] C 18 H 37 N(CH 2 CH 2 CONH 2 ) 2 ;

[0094] That is, z=0, w=2, R=CH 3 When the structural formula is

[0095] C 18 H 37 N(CH 2 CH 2 CON(CH 3 ) 2 ) 2 ;

[0096] That is, z=1, w=1, R=CH 2 When OH, the structural formula is

[0097] C 18 H 37 N(CH 2 CH 2 CONHCH 2 OH) 2 ;

[0098] (2) Dissolve sodium dihydrogen phosphate in water, heat it 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

[0099]

[0100] (3) Add Reaction Int...

Embodiment 1

[0138] (1) Preparation of amide quaternary ammonium hydroxypropyl phosphate sodium asphalt emulsifier:

[0139] 1) Add 269.5 g of octadecylamine and 260 g of isopropanol into the reactor, heat and stir to dissolve. Then 145.7g acrylamide was gradually added, and the reaction was stirred at 70°C for 3h.

[0140] After recrystallization, separation and purification of the above synthesized product, FTIR detection was carried out. The results are as follows: 3371cm -1 And 3205cm -1 It is the absorption peak of N-H stretching vibration, 2916cm -1 And 2850cm -1 Respectively the absorption peaks of methylene asymmetric and symmetric stretching vibration, 1666cm -1 Is the absorption peak of amide C=O stretching vibration, 1471cm -1 Asymmetric bending vibration of methylene group, 1417cm -1 Asymmetric bending vibration of methyl group, 1263cm -1 And 1128cm -1 C-N stretching vibration absorption peak, 717cm -1 Swing vibration in the methylene plane, 669cm -1 Out-of-plane deformation vibratio...

Embodiment 2

[0154] (1) Preparation of amide quaternary ammonium hydroxypropyl phosphate sodium asphalt emulsifier:

[0155] 1) Add 269.5 g of octadecylamine and 260 g of isopropanol into the reactor, heat and stir to dissolve. Then 145.7g acrylamide was gradually added, and the reaction was stirred at 70°C for 3h.

[0156] 2) Add 518.9g of trisodium phosphate (Na 3 PO 4 ·12H 2 O) and 672g of water, stir to dissolve, and heat to 42°C. Then 97.1 g of epichlorohydrin was added dropwise, and the reaction was stirred at 42° C. for 5 hours to obtain an aqueous solution of sodium glycidyl phosphate.

[0157] The synthesized intermediate product was separated and purified by recrystallization and then tested by FTIR. The results are as follows: 3015cm -1 It is the C-H stretching vibration absorption peak of epoxy group, 1673cm -1 It is the absorption peak of C-O asymmetric stretching vibration, 1443cm -1 Asymmetric bending vibration of methylene group, 1360cm -1 Is the absorption peak of P=O stretching...

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Abstract

The invention discloses an amido quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and a preparation method thereof. The amido quaternary ammonium salt type hydroxypropylsodium phosphate asphalt emulsifier is prepared from raw materials including octadecylamine, alcohol solvent, double-bond-containing amides, epoxy chloropropane and sodium dihydrogen phosphate at a molar ratio of 1:4.00-9.00:2.00-2.10:1.00-1.15:1.50-1.73, or octadecylamine, alcohol solvent, double-bond-containing amides, epoxy chloropropane, trisodium phosphate and hydrochloric acid at a molar ratio of 1:4.00-9.00:2.00-2.10:1.00-1.15:1.30-1.50:1.40-1.61, wherein the alcohol solvent is ethyl alcohol, methyl alcohol or isopropanol. The amido quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier is simple in raw material acquisition, low in production cost, simple in process and free from high-temperature reaction and can be applied to emulsifying various types of asphalts; the emulsified asphalts are fine, uniform and good in storage stability and can be applied to preparing cationic emulsified asphalts.

Description

Technical field [0001] The invention relates to an amide quaternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier and a preparation method thereof, and belongs to the technical field of fine chemicals. Background technique [0002] Asphalt emulsifier is a type of surfactant, which has the basic characteristics of surfactant. Because it has a lipophilic group and a hydrophilic group, under the action of these two groups, it can be adsorbed on the mutually repelling interface of asphalt and water, thereby reducing the interfacial tension between them. According to the different properties of the hydrophilic base of the emulsifier, emulsifiers are divided into anionic, cationic, zwitterionic, nonionic, etc. Among them, the amphoteric emulsifier carries both positive and negative ionic charges, and the hydrophilic group of its surface active ion has both an anionic part and a cationic part; its structure is different from anionic emulsifiers and cationic emuls...

Claims

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Application Information

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IPC IPC(8): C08J3/03C08L95/00C07F9/09
CPCC07F9/091C08J3/03C08J2395/00C08L95/005
Inventor 施来顺于小梦巩雪笛马存飞
Owner 山东圳谷新材料科技有限公司
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