Surfactant, method for producing same, and solution containing same

A technology of surfactants and manufacturing methods, applied in the field of surfactants, can solve the problems of high cost of raw materials and energy, complicated reaction process, etc.

Active Publication Date: 2021-07-06
SINO JAPAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Accordingly, its reaction process is more complicated, and must consume a large amount of raw material cost and energy cost

Method used

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  • Surfactant, method for producing same, and solution containing same
  • Surfactant, method for producing same, and solution containing same
  • Surfactant, method for producing same, and solution containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] First, 100 parts by weight of polyoxyethylene octyl phenyl ether and 2.6 parts by weight of potassium hydroxide were added to the reaction tank. Next, 29 parts by weight of butyl glycidyl ether was slowly dropped into the reaction tank. After the aforementioned mixture is uniformly mixed, the temperature of the reaction tank is set at 100° C. to 110° C. to perform a single-step reaction on the mixture. After the reaction is completed, the adsorbent and water are added, and the temperature of the reaction tank is heated to above 100°C for purification. After potassium hydroxide is removed, the product obtained is filtered to obtain the surfactant of Example 1 shown in the following formula (IV-1). The obtained surfactants were evaluated by the following evaluation methods of defoaming property, surface tension, wetting and penetrability and gelation evaluation, and the results of the evaluation items of defoaming property, surface tension and wetting and penetrating pro...

Embodiment 2

[0072] The preparation method of the surfactant of embodiment 2 to embodiment 6 is to use the same synthesis steps as the preparation method of the surfactant of embodiment 1, and the difference is that embodiment 2 to embodiment 6 is to change the kind of reactant and Usage amount, its formula and reaction condition are as shown in table 1. Wherein, the surfactants prepared in Example 2 to Example 6 have the structures shown in the following formulas (IV-2) to (IV-6) respectively. The obtained surfactants were evaluated by the following evaluation methods of defoaming property, surface tension and wettability, and the results are shown in Table 2-1. In addition, the surfactant prepared in Example 2 was further evaluated by the evaluation method of gelation evaluation, and the obtained results are shown in Table 2-2.

[0073]

[0074] In formula (IV-2), R 12 Represents an alkyl group with a carbon number of 9 to 11; n 2 represents 10; and m 2 represents 0.5.

[0075] ...

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Abstract

The invention relates to a surfactant, its production method and a solution containing the surfactant. Surfactant of the present invention has the structure shown in following formula (I): In formula (I), R 1 Represents an alkyl group with a carbon number of 8 to 30, an alkylphenyl group or a structure shown in the following formula (II); R 2 Represents a carbon number of 2 to 4 subalkoxy, wherein R 2 The alkyl group and R 1 O‑bonding; R 3 Represents an alkyl group with a carbon number of 3 to 18, an alkoxy group with a carbon number of 3 to 18, a phenol group or an o-cresol group; n represents a value in the range of 0 to 100; and m represents a value in the range of 0.1 to 10 value; in formula (II), R 4 represents a hydrogen atom or an alkyl group with a carbon number of 1 to 4; z represents an integer of 1 to 3, and "*" represents a bond. The surfactant of the invention has good defoaming property and wet permeability.

Description

technical field [0001] The invention relates to a surfactant, in particular to provide a surfactant with good defoaming property, wet permeability and small gel concentration difference and its application. Background technique [0002] The structure of a general surfactant has lipophilic groups and hydrophilic groups, and its Hydrophile Lipophilic Balance (HLB) value can be adjusted by different lipophilic groups and hydrophilic groups, and It can have different emulsification capabilities and interface properties (such as: defoaming, wetting and penetrating properties, dilution and gel concentration, etc.), thereby meeting different application requirements. [0003] Since the end of the molecular chain of general surfactants is an active hydrocarbon group, it is difficult to eliminate the foam formed by the shock of the solution when these surfactants are used, which reduces their applicability. Therefore, in order to effectively improve the defoaming properties of surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/331
Inventor 邱锡海庄忠哲林雅慧
Owner SINO JAPAN CHEM
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