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Microemulsion preparation method

A technology of microemulsions and preparation methods, applied in chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve the problems of time-consuming, complex selection and design of microemulsions, etc.

Inactive Publication Date: 2018-04-17
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The successful preparation of microemulsions has strict requirements on the matching ratio of each component, and the selection and design of microemulsion compositions is complex, time-consuming, and unpredictable. Currently, among the many patent documents related to microemulsions, most of them are only dedicated to A specific oil-soluble product produces a specific microemulsion product, and there is no forward-looking and guiding matching ratio of each formula component that can be generally applied

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. At room temperature, weigh 2.037g of the surfactant Span-80, 6.004g of the co-surfactant isopropanol, and 8.072g of the oil phase cyclohexane into beaker 1, add a magnet and stir;

[0017] 2. Take another clean beaker 2, pour deionized water into it, weigh the total weight of beaker 2 and deionized water, and record the weight value as m 1 =135.761g;

[0018] 3. Use a dropper to take the deionized water in beaker 2, and add it drop by drop to beaker 1. The solution will become cloudy when the deionized water is added, and it will become transparent immediately with stirring; when the deionized water is dropped, The stirring solution cannot become transparent immediately. After standing still for 30 minutes, the liquid becomes clear again. Then add 0.05 mL of deionized water dropwise and let it stand for 30 minutes. Clarify, stop dripping deionized water, and weigh the weight of beaker 2 at this time, record it as m 2 =134.580g;

[0019] 4. At this time, the maximu...

Embodiment 2

[0026] 1. At room temperature, weigh 2.033g of OP-10 surfactant, 2.091g of co-surfactant isopropanol, and 4.045g of oil phase cyclohexane into beaker 1, add a magnet and stir;

[0027] 2. Take another clean beaker 2, pour deionized water into it, weigh the total weight of beaker 2 and deionized water, and record the weight value as m 1 =112.021g;

[0028] 3. Use a dropper to take the deionized water in beaker 2, and add it drop by drop to beaker 1. The solution will become cloudy when the deionized water is added, and it will become transparent immediately with stirring; until the deionized water is dropped, The stirred solution cannot become transparent immediately. After standing still for 30 minutes, the liquid becomes clear again, and then add 0.05 mL of deionized water dropwise. If the liquid does not return to clear after standing for 30 minutes, stop adding deionized water, and weigh the weight of beaker 2, record for m 2 =110.715g;

[0029] 4. At this time, the maxi...

Embodiment 3

[0036] 1. At room temperature, weigh 2.032g of the surfactant Triton X-114, 14.031g of the co-surfactant isopropanol, and 12.005g of the oil phase cyclohexane into the beaker 1, add a magnet and stir;

[0037] 2. Take another clean beaker 2, pour deionized water into it, weigh the total weight of beaker 2 and deionized water, and record the weight value as m 1 =84.488g;

[0038] 3. Use a dropper to take the deionized water in beaker 2, and add it drop by drop to beaker 1. The solution will become cloudy when the deionized water is added, and it will become transparent immediately with stirring; until the deionized water is dropped, The stirring solution cannot become transparent immediately. After standing for 30 minutes, the liquid becomes clear again. Add 0.05 mL of deionized water dropwise. If the liquid does not return to clear after standing for 30 minutes, stop adding deionized water and weigh the weight of beaker 2 at this time. , denoted as m 2 =79.479g;

[0039] 4....

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Abstract

The invention discloses a stable microemulsion preparation method, and aims to provide a microemulsion preparation formula with wide applicability to overcome the shortcomings of an existing microemulsion preparation technology. The proportion of surface active agents (Span-80, OP-10, Triton and X-114), co-surfactants (isopropanol), oil (cyclohexane) and water (deionized water) is controlled to obtain stable reversed-phase microemulsion. Research results indicate that a transparent stable microemulsion preparation component formula range is successfully obtained according to a large quantity of experimental data, a three-phase diagram of proportions among all components is successfully drawn, stable microemulsion can be prepared within the proportional range, and experimental and theoretical bases are provided for stable microemulsion preparation.

Description

technical field [0001] The invention relates to a preparation method of a stable microemulsion. Background technique [0002] Microemulsion has important application value due to its huge surface area, ultra-low interfacial tension, strong solubilization ability and nano-scale dispersed phase. It is widely used in clean fuel, extraction, drug carrier, microreactor, food additive, lubricating oil additive etc. It can also be used in coatings and preparation of nanoparticles. [0003] An inverse microemulsion is a W / O (water-in-oil) droplet stabilized by a surfactant interfacial film. The water core is a microreactor for preparing nanomaterials, the size of the water core defines the particle size, and the size of the water core can be determined by the molar ratio of water and surfactant. Compared with other chemical methods, the particles prepared by microemulsion method are not easy to agglomerate, the size is controllable, the dispersion is good, and the preparation proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/32B01F17/42B01F17/38C09K23/32C09K23/38C09K23/42
CPCC09K23/018
Inventor 沈杭燕王艳汪坤
Owner CHINA JILIANG UNIV
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