Mixed system containing fatty acid type surfactant and preparation method thereof
The technology of surfactant and fatty acid is applied to the mixed system containing fatty acid type surfactant and the field of preparation thereof, which can solve the problems of easy crystallization and low concentration of fatty acid, and achieve the effects of easy popularization and application, and simple formula and preparation method.
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[0019] The method for preparing the mixed system containing fatty acid type surfactant provided by the present invention comprises mixing long-chain fatty acids with 11-16 carbon atoms and 3,3'-iminobis(N,N-dimethylpropylamine) until The solid is dissolved, wherein the molar ratio between the long-chain fatty acid and 3,3'-iminobis(N,N-dimethylpropylamine) is 100:100-120, preferably 1:1.
[0020] According to the present invention, the long-chain fatty acid is a fatty acid with 11-16 carbon atoms, preferably a straight-chain fatty acid, including saturated straight-chain fatty acid and / or unsaturated straight-chain fatty acid, more preferably, the long-chain fatty acid is selected from From undecanoic acid, 10-undecenoic acid (undecylenic acid), dodecanoic acid (lauric acid), tridecanoic acid, myristic acid (myristic acid), pentadecanoic acid and palmitic acid (palmitic acid) at least one of the
[0021] According to the present invention, the mixing can also be carried out i...
Embodiment 1-9
[0035] According to the dosage shown in Table 1, weigh the long-chain fatty acid and IBDPA and put them in the sample bottle. After sealing, the mixing method is constant temperature or repeated temperature rise and fall. See the expression of "constant temperature" or "repeated temperature rise and fall" in the mixing method column in Table 1. . The constant temperature method is to heat the sample to a certain temperature (see Table 1 "Temperature" column for details) and keep the temperature for a certain period of time (see Table 1 "Constant Temperature Time" column for details) until all the solids are dissolved to obtain a mixed system sample; Heating to a certain temperature (see Table 1 "Temperature" column for details) and constant temperature for a certain period of time (see Table 1 "Constant Temperature Time" column for details), then cool to about 0°C and keep the temperature for 10 minutes, and repeat the temperature rise and fall several times (see Table 1 for th...
Embodiment 10-17
[0038] According to the amount shown in Table 2, weigh the long-chain fatty acid and IBDPA and place them in the sample bottle, then add deionized water; after sealing, the mixing method is constant temperature or repeated temperature rise and fall, see the mixing method column "constant temperature" or " repeated heating and cooling". The constant temperature method is to heat the sample to a certain temperature (see Table 2 "Temperature" column) for a certain period of time (see Table 2 "Constant Temperature Time" column) until all the solids are dissolved to obtain a mixed system sample; the repeated heating and cooling method is to heat the sample Heating to a certain temperature (see Table 2 "Temperature" column for details) and constant temperature for a certain period of time (see Table 2 "Constant Temperature Time" column for details), then cool to about 0°C and keep the temperature for 10 minutes, and repeat the temperature rise and fall several times (see Table 2 for ...
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