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Amido diquaternary 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 and other directions, can solve the problems of high requirements for production experimental equipment, high cost of emulsifier raw materials, high temperature reaction, etc. Achieve excellent performance indicators, good aggregate adhesion and storage stability, and improve the effect of stability

Active Publication Date: 2019-03-12
山东圳谷新材料科技有限公司
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  • Summary
  • 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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  • Amido diquaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and preparation method thereof
  • Amido diquaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and preparation method thereof
  • Amido diquaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and preparation method thereof

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preparation example Construction

[0087] For above asphalt emulsifier, the present invention also provides its preparation method, comprises the following steps:

[0088] (1) N-hydrogenated tallow-1,3-propylenediamine, alcohol solvent and double bond-containing amide are mixed and reacted to obtain a reaction intermediate I, and the general structural formula of the reaction intermediate I is:

[0089]

[0090] That is, when z=2, w=0, R=H, the structural formula is

[0091]

[0092] That is, z=0, w=2, R=CH 3 , the structural formula is

[0093]

[0094] That is, z=1, w=1, R=CH 2 When OH, the structural formula is

[0095]

[0096] (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

[0097]

[0098] (3) Add the reaction intermediate II to the reaction intermediate I, and mix and react to obtain the amide diquaternary ammon...

Embodiment 1

[0136] (1) Preparation of amide diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier:

[0137] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of isopropanol into the reactor, heat and stir to dissolve. Then, 216.8 g of acrylamide was gradually added, and the reaction was stirred at 70° C. for 3 h.

[0138] The above synthetic intermediate product was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3440cm -1 and 3369cm -1 O-H stretching vibration absorption peak at 3190cm -1 The N-H stretching vibration absorption peak at 2916cm -1 and 2850cm -1 The asymmetric and symmetric stretching vibration absorption peaks of methylene respectively, 1669cm -1 It is the amide group C=O stretching vibration absorption peak, 1471cm -1 For the asymmetric bending vibration of methylene, 1409cm -1 Asymmetric bending vibration of the methyl group at 1261cm -1 and 1076cm -1 C-N stretching...

Embodiment 2

[0150] (1) Preparation of amide diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier:

[0151] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of isopropanol into the reactor, heat and stir to dissolve. Then, 216.8 g of acrylamide was gradually added, and the reaction was stirred at 70° C. for 3 h.

[0152] 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.

[0153] 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, 1360...

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Abstract

The invention discloses an amido diquaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and a preparation method thereof. The amido diquaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier is prepared from raw materials including N-hydrogenated tallow-1,3-diaminopropane, alcohol solvent, double-bond-containing amides, epoxy chloropropane and sodium dihydrogen phosphate at 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-1,3-diaminopropane, alcohol solvent, double-bond-containing amides, epoxy chloropropane, trisodium phosphate and hydrochloric acid at a molar 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 solvent is ethyl alcohol, methyl alcohol or isopropanol. The amido diquaternary 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 bisquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier and a preparation method thereof, belonging to the technical field of fine chemicals. Background technique [0002] According to the different properties of the hydrophilic group of the emulsifier, the emulsifier is divided into anionic type, cationic type, zwitterionic type, nonionic type, etc. Among them, amphoteric emulsifiers mainly include betaine compounds, imidazoline compounds and amino acid compounds. Amphoteric emulsifiers have: (1) good emulsification and dispersibility; (2) low toxicity; (3) strong resistance to hard water and calcium dispersion, and good compatibility with other types of emulsifiers, etc. [0003] In terms of asphalt emulsification, although there are many types of asphalt emulsifiers in the prior art, there is still a gap between my country and Europe and the United States: foreign asphalt emulsifiers have...

Claims

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Application Information

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IPC IPC(8): C08J3/03C08L95/00C07F9/09
CPCC07F9/091C08J3/03C08J2395/00C08L95/00
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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