Preparation process capable of obviously improving forming condition and performance of microcapsules

Abstract

The invention discloses a preparation process capable of obviously improving the forming condition and performance of microcapsules, which comprises the following steps: preparing wall material solution, emulsifying a core material, forming microcapsules, solidifying the microcapsules and drying the microcapsules. In the preparation process of the wall material solution, the range of the wall material concentration is 3.0 to 5.0 percent, and the wall material concentration is preferably 4.0 percent. In the invention, by controlling the wall material concentration, the sphericity of the microcapsules is improved, namely the forming condition of the microcapsules is improved; and the embedding rate and the release rate of the microcapsules are improved, and consequently the overall performance of the microcapsules is improved.

Description

technical field [0001] The invention relates to a preparation process, in particular to a preparation process for significantly improving the molding and performance of microcapsules. Background technique [0002] Microcapsules are actually small particles that are made up of a material called a wall material that surrounds another material called a core material. On this basis, there are some special types of microcapsules, such as double-core microcapsules, double-wall microcapsules and matrix microcapsules. The encapsulated substance and the capsule wall are two separate phases, which is the characteristic of microcapsules. Microcapsules can not only encapsulate solid powders, but also liquid materials. If a special preparation method is adopted, microcapsules can also encapsulate gas. also. Both hydrophobic and hydrophilic materials can be encapsulated in microcapsules. [0003] The technical research on microcapsules probably started in the 1930s, and achieved sign...

AI Technical Summary

Problems solved by technology

Therefore, the minimum concentration of the wall material should be controlled at 1.0%, but the concentration of the wall material should not be too high. If the concentration of the wall material is too high, the viscosity of the system will be increased, and the reaction is not suitable.