Measurement device and measurement method for measuring flow of capillary tube bundle for nano-emulsion

Abstract

The invention discloses a measurement device for measuring flow of a capillary tube bundle for nano-emulsion. The measurement device comprises a sample preparation system, a feeding system and a measurement system; the sample preparation system comprises a first feeding pump, a first water storage device, a second feeding pump, a second water storage device, a first intermediate container, a second intermediate container, a first mixing chamber, a second mixing chamber, a third feeding pump, a fourth feeding pump, a fourth water storage device, a fourth intermediate container, a mechanical stirring machine, an electromagnetic heating stirrer and a magneton; the feeding system comprises a sixth feeding pump, a sixth water storage device, a sixth intermediate container, a seventh intermediate container, a first valve, a second valve, a fifth feeding pump and a first multi-ported valve; the measurement system comprises the capillary tube bundle, a second multi-ported valve, a third multi-ported valve, a first pressure sensor, a second pressure sensor, a data acquisition system, a data processing system and a measurement container. The invention also provides a measurement method for measuring flow of the capillary tube bundle for nano-emulsion by utilizing the device; reproducibility, accuracy and usability of flow experimental data are improved.

Description

technical field [0001] The invention relates to the technical field of testing fluid flow in capillary bundles, in particular to a capillary bundle flow measurement device and a measurement method for nanoemulsions. Background technique [0002] Nanoemulsion refers to a colloidal dispersion system formed by two immiscible liquids, and the droplet size range is generally between 50 and 500 nm. Compared with microemulsion, nanoemulsion has small droplet size and uniform particle size, and the amount of emulsifier is greatly reduced; compared with ordinary emulsion, nanoemulsion has the advantages of uniform dispersion and good stability. Nanoemulsions can be used in many fields such as medicine, catalysis, food, petroleum and cosmetics, and have very good application prospects. [0003] At present, the research on the fluidity of emulsions mainly focuses on the micron-scale emulsion system, and it is the flow in porous media. Ordinary emulsions are prone to delamination, coa...

AI Technical Summary

Problems solved by technology

However, at present, due to the thermodynamic instability of the nanoemulsion particle size, the measurement of the flow law of the nanoemulsion is difficult to repeat and reproduce, which greatly limits the application of the nanoemulsion.

The patent CN201310130666 has produced a polymer-stabilized nanoemulsion through the inverse emulsification method. The method provided is to add the emulsifier and the water phase drop by drop. It takes a long time to prepare the nanoemulsion in this way, and the prolongation of the preparation time is also can lead to changes in the particle size and distribution of nanoparticles

In addition, the transfer between containers during the measurement process of the prepared nanoemulsion will have a shearing effect on the nanoemulsion particles, and the external shear stress also has a great influence on the particle size and other properties of the nanoemulsion, which leads to The inaccuracy and non-reproducibility of the measurement results, which in turn affects the evaluation of the application effect

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