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Non-ionic surfactant and preparation method and application thereof

A technology of non-ionic surface and active agent, applied in the field of non-ionic surface active agent and its preparation, can solve the problem that the low temperature performance of asphalt affects the large-scale transformation of mixing equipment, etc. The effect of low temperature

Inactive Publication Date: 2014-08-13
上海龙孚材料技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to provide a non-ionic surfactant and its preparation method in order to overcome the defects of the existing asphalt warm mixing technology on the influence of asphalt low-temperature performance and the large-scale transformation of mixing equipment. and as an asphalt warm mix agent

Method used

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  • Non-ionic surfactant and preparation method and application thereof
  • Non-ionic surfactant and preparation method and application thereof
  • Non-ionic surfactant and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0030] Weigh myristic acid (0.05mol) and polyetheramine (0.06mol) with a molecular weight of 230 in a flask, and add xylene as a solvent. React at 140-160°C for 10-18 hours, and monitor the reaction by titrating the primary amine value. During the reaction process, water separator was used to remove the water in the reaction process. After the reaction was over, water and xylene were distilled off under reduced pressure to obtain compound 14A, and the number of carbon atoms in the saturated fatty acid was changed (the number of carbon atoms was 8, 10, and so on). , 12, 16, 18), to obtain compounds 8A, 10A, 12A, 16A, 18A, respectively.

[0031]

Embodiment 2

[0033] Weigh oleic acid (0.05mol) and polyetheramine (0.06mol) with a molecular weight of 230 in a flask, and add xylene as a solvent. React at 140-160°C for 10-18 hours, and monitor the reaction by titrating the primary amine value. During the reaction, a water separator was used to remove the water in the reaction process. After the reaction, the water and xylene were distilled off under reduced pressure to obtain compound 18a.

[0034] Further confirmed by infrared spectrum, the infrared spectrum of 18a is as follows figure 1 shown. figure 1 Medium wave number 3282cm -1 is the terminal amino group in 18a (-NH 2 ) and the carbon-hydrogen (-C=C-H) stretching vibration absorption peak on the carbon-carbon double construction, the wave number is 2925cm -1 It is the C-H stretching vibration absorption peak of the methyl group, with a wave number of 2854cm -1 It is the C-H stretching vibration absorption peak of methylene, with a wave number of 1646cm -1 It is the carbonyl ...

Embodiment 3

[0037] Weigh myristic acid (0.05mol) and polyetheramine (0.06mol) with a molecular weight of 400 in a flask, and add xylene as a solvent. React at 140-160°C for 10-18 hours, and monitor the reaction by titrating the primary amine value. During the reaction, a water separator was used to remove the water in the reaction process. After the reaction, the water and xylene were distilled off under reduced pressure to obtain compound 14B. By changing the number of carbon atoms in the saturated fatty acid (the number of carbon atoms is 8, 10, 12, 16, 18 in sequence), compounds 8B, 10B, 12B, 16B, and 18B were obtained respectively.

[0038]

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Abstract

The invention discloses a non-ionic surfactant and a preparation method and application thereof. The preparation method of the non-ionic surfactant comprises the following steps: amidation reaction of fatty acid I and polyether amine II with the molar ratio of fatty acid I to polyether amine II of (1:1)-(1:2), wherein R is C7-C17 alkyl and / or C7-C17 alkenyl, and the molecular weight M of the polyether amine II meets that 230 <=M<=2000. The non-ionic surfactant as an asphalt temperature mixing agent is low in mixing temperature, can reduce energy consumption in the asphalt preparation process, and can improve the anti water damage ability of the asphalt.

Description

technical field [0001] The invention relates to the field of surfactants, in particular to a nonionic surfactant and its preparation method and application. Background technique [0002] Surfactants mainly include four categories, namely cationic surfactants, anionic surfactants, nonionic surfactants and amphoteric surfactants. In recent years, it is a hot spot in the field of asphalt research to find suitable surfactants for lowering the mixing and compacting temperature of asphalt and stone materials. Appropriate surfactants and their combinations can reduce the mixing and compacting temperature of asphalt and stone materials, thereby reducing energy consumption and gas emissions in the asphalt preparation process and improving the construction environment. [0003] In recent years, with the increasingly serious environmental problems and global warming, how to save energy and reduce carbon dioxide emissions has become an important aspect of research in the field of chemi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L71/00C08K5/20C08G65/00C07C231/02C07C233/18C07C233/20C04B24/12
CPCY02A30/30
Inventor 余建军马兰王利民吴德龙马云容李立勇田禾戴俊
Owner 上海龙孚材料技术有限公司
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