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Amide polyamine asphalt emulsifier, emulsified asphalt, preparation method and application thereof

An asphalt emulsifier, amide polyamine type technology, applied in organic chemistry, construction, building components, etc., can solve the problems of high cost of emulsifier raw materials, high requirements for production and experimental equipment, high cost, etc., and achieve good aggregate adhesion and storage stability, excellent performance indicators, and enhanced charge strength

Active Publication Date: 2019-10-08
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The disadvantage of this method is that the preparation steps are cumbersome, the cost is high, and high temperature reaction is required
[0004] The general disadvantages of the above cationic asphalt emulsifiers and their preparation methods are: the cost of raw materials for the preparation of emulsifiers is high, the sources are 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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  • Amide polyamine asphalt emulsifier, emulsified asphalt, preparation method and application thereof
  • Amide polyamine asphalt emulsifier, emulsified asphalt, preparation method and application thereof
  • Amide polyamine asphalt emulsifier, emulsified asphalt, preparation method and application thereof

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preparation example Construction

[0033] For above asphalt emulsifier, the present invention also provides its preparation method, comprises the following steps:

[0034] (1) Mixing and reacting amine compounds, alcohol solvents and amides containing double bonds to obtain reaction intermediate I, the general structural formula of which is HR',

[0035] Where R' is -NH(C 2 h 4 NH) n CH 2 CH 2 CON(R) 2 , n is a positive integer, R is H or CH 3 , the amine compound is diethylenetriamine, triethylenetetramine, tetraethylenepentamine, β-hydroxyethylethylenediamine or aminoethylpiperazine;

[0036] Further, 2≤n≤6, further, 2≤n≤4.

[0037](2) gradually add epichlorohydrin to reaction intermediate I again, mixed reaction, obtain reaction intermediate II, the general structural formula of described reaction intermediate II is

[0038] ClCH 2 CH(OH)CH 2 R',

[0039] Among them, R' is -NH(C 2 h 4 NH) n CH 2 CH 2 CON(R) 2 , n is a positive integer, R is H or CH 3 ;

[0040] (3) Gradually add co...

Embodiment 1

[0058] (1) Preparation of amide polyamine type asphalt emulsifier:

[0059] 1) Add 113.5g of diethylenetriamine and 300g of isopropanol into the reactor, heat and stir to mix. Then gradually add 78.2g of acrylamide, and stir at 60°C for 2h to obtain reaction intermediate I.

[0060] 2) Gradually add 97.07 g of epichlorohydrin to the reaction intermediate I. After the addition is complete, react at 75° C. for 2 hours to obtain the reaction intermediate II.

[0061] 3) Gradually add 284.5g cocoyl propyl dimethyl tertiary amine to the reaction intermediate II. After the addition is complete, react at 75°C for 0.5h, then add 300g of water. After adding water, react at 75°C for 3h. That is, the amide polyamine asphalt emulsifier was obtained, which was reserved for the emulsified asphalt test.

[0062] The synthesized product was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3305cm -1 It is the stretching vibration absorption ...

Embodiment 2

[0072] (1) Preparation of amide polyamine type asphalt emulsifier:

[0073] 1) Add 113.5g of diethylenetriamine and 300g of isopropanol into the reactor, heat and stir to mix. Then gradually add 109.0 g of N,N-dimethylacrylamide, and stir at 60°C for 2 hours to obtain reaction intermediate I.

[0074] 2) Gradually add 97.07 g of epichlorohydrin to the reaction intermediate I. After the addition is complete, react at 75° C. for 2 hours to obtain the reaction intermediate II.

[0075] 3) Gradually add 284.5 g of cocoyl propyl dimethyl tertiary amine to the reaction intermediate II. After the addition is complete, react at 75° C. for 0.5 h, then add 300 g of water. After adding water, react at 75° C. for 3 h. That is, the amide polyamine asphalt emulsifier was obtained, which was reserved for the emulsified asphalt test.

[0076] The synthesized product was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3312cm -1 It is the st...

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Abstract

The invention discloses an amide polyamine asphalt emulsifier, emulsified asphalt, a preparation method and an application thereof. The molecular structure general formula of the asphalt emulsifier isas follows: wherein R' is -NH(C2H4NH)nCH2CH2CON(R)2, n is a positive integer, and R is H or CH3. The amide polyamine asphalt emulsifier can emulsify many different types of asphalt, the prepared emulsified asphalt is fine and uniform, has good storage stability, and can prepare cationic emulsified asphalt.

Description

technical field [0001] The invention relates to an amide polyamine type asphalt emulsifier, emulsified asphalt and a preparation method and application thereof, belonging to the technical field of fine chemicals. Background technique [0002] Emulsified asphalt is an oil-in-water liquid asphalt emulsion formed by asphalt and water under the action of an emulsifier. Emulsified asphalt is mainly divided into cationic emulsified asphalt, anionic emulsified asphalt and nonionic emulsified asphalt. Among them, cationic emulsified asphalt is widely used in road construction and road maintenance due to its energy-saving and environmental protection, can improve construction conditions, has strong adhesion to stone materials, and can effectively reduce over-aging of asphalt and many other excellent application characteristics. The most critical factor affecting the road performance of emulsified asphalt is the asphalt emulsifier. At present, the main varieties of cationic asphalt e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08L95/00C07D295/15
CPCC07D295/15C08J3/03C08J2395/00
Inventor 施来顺巩雪笛王天曜于小梦马存飞
Owner SHANDONG UNIV
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