Preparation method of composite microsphere having "crunchy rice candy" like structure, the prepared composite microsphere, and application thereof

Abstract

A synthesis method of a composite microsphere having a "crunchy rice candy" like structure includes steps of: 1) preparing nano or submicron microspheres which may be pure high-molecular microspheresor high-molecular inorganic composite microspheres; 2) on the basis of the prepared microspheres, adding other agents to perform further high-molecular polymerization reaction and hydrolysis reactionto achieve crosslinking of the microspheres, thereby forming a larger "crunchy rice candy" like crosslinked microsphere. The synthesized microspheres have excellent physical and chemical characteristics of small microspheres, such as high specific surface area, a large quantity of active sites and activity accumulation effect, so that the total quantity of the active sites is far larger than thatof single small microsphere. The product has wide application prospect in the fields such as biology, synthesis, separation and the like.

Description

technical field

[0001] The invention belongs to the technical field of preparation technology of high-performance composite microspheres, and in particular relates to a preparation method of composite microspheres with a specific "rice cracker candy" structure. Background technique

[0002] Nanomaterials refer to materials whose microstructure belongs to nanoscale (1-100nm) in at least one dimension, among which nanospheres are materials with nanoscale in three dimensions, which have physical and chemical properties that traditional materials do not have. . The most widely used type of nano-microspheres is the nano-microspheres with a core-shell structure. Such microspheres generally have a skeleton structure composed of hydrophobic substances, which can wrap and protect core materials such as magnetism from chemical erosion by the external environment. The shell of core-shell nanospheres generally has a hydrophilic structure, and after introducing different surface groups,...

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