Water-encapsulated microcapsule wall material and water-encapsulated microcapsule prepared through same

Abstract

The invention aims at solving the problems that wall material is easy to go off and mildew when a water-encapsulated microcapsule is prepared by conventional grease wall material, core material which is water is not embedded closely, the utilization ratio of core material is low, moisture content is easy to dissipate, the saving time is short and so on, also aims at solving the shortages that a traditional water-encapsulated microcapsule selects and uses urea-methanal prepolymers as wall material and is commonly used in fields such as chemical fertilizers, printing and the like, the application range is narrow, and the traditional water-encapsulated microcapsule is not suitable for industries with higher safety and hygiene requirements, and provides microcapsule wall material and the water-encapsulated microcapsule prepared through the microcapsule wall material. A plurality of types of food-grade materials are selected and used to be mutually matched reasonably so as to obtain the novel microcapsule wall material; better purified water embedded effect can be achieved; and the formed water-encapsulated microcapsule is characterized by close embedment, high utilization ratio of core material, low probability of dissipation of moisture content, long saving time and the like. The microcapsule wall material and the water-encapsulated microcapsule adopt the technical means as follows: the raw material comprises 40 to 55 parts of silicon dioxide, 0.1 to 0 to 0.2 parts of pulullan polysaccharide, 0.2 to 0.8 parts of sorbierite and 0.2 to 0.8 parts of xylitol as per part by weight.

Description

technical field [0001] The invention relates to the preparation of microcapsules, in particular to a microcapsule wall material and the prepared water-encapsulated microcapsules. Background technique [0002] Microcapsules refer to the use of film-forming materials to encapsulate solids, liquids or gases in them to form tiny containers with a diameter of tens of microns to thousands of microns. The material loaded inside the microcapsule is called core material or capsule core material, and the wall membrane encapsulated outside is called wall material or encapsulation material. There are many classification methods for microcapsules: from the perspective of core material, it can be divided into single-core and double-core microcapsules; from the perspective of wall material structure, it can be divided into single-layer film and multi-layer film microcapsules; from the perspective of wall material composition, it can be divided into It is an inorganic membrane and an organ...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem that the existing oily wall materials in the background technology are used to prepare water-encapsulated microcapsules, the wall materials are prone to deterioration and mildew, the core material is not tightly embedded in water, the utilization rate of the core material is low, the water is easy to lose, and the storage time is short. etc., and traditional water-encapsulated microcapsules select urea-formaldehyde prepolymer as the wall material and are usually used in fields such as chemical fertilizers and printing, which have a small scope of application and are not suitable for industries with high safety and health requirements. The present invention The purpose of this paper is to provide a microcapsule wall material and the water-wrapped microcapsule prepared by the wall material. By selecting a variety of food-grade raw materials and combining them reasonably, a new type of microcapsule wall material can be obtained, which can achieve a better pure water embedding effect. , the formed water-encapsulated microcapsules have the characteristics of tight embedding, high utilization rate of core material, difficult loss of water, and long storage time.