Preparation of hollow nanosilica white sphere

A nano-silicon oxide, hollow technology, applied in the direction of silicon oxide, silicon dioxide, etc., can solve the problems of difficult to obtain hollow nano-silicon oxide balls, time-consuming, complicated preparation process, etc., and achieve simple operation, low energy consumption, and synthetic method simple and easy effects
CN101348254AInactive Publication Date: 2009-01-21DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2009-01-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a silicon oxide sphere particle, in particular to a method for preparing a hollow nano silicon oxide sphere. In a bionic system with room temperature approximately neutral, the three block copolymer F1127 is taken as a structure guiding agent, the mutual interactions between hydrolytic oil-soluble silica resources and the three block copolymer F1127 and inorganic electrolytes are controlled, the hollow spherical particle is obtained by steps of the preparation of polymer micelle, hydrolytic polymerization of silica resources, hydrothermal crystallization, drying and extraction of the structure guiding agent; the size of the spherical particle is continuously adjusted in the range of between 10 and 20nm, and the thickness of a shell wall is continuously adjusted in the range of between 4 and 10nm. The synthesized nano hollow sphere has the advantages of big specific surface, big hole capacity, uniform particle size and good dispersibility of the particle, a multi-level structure formed between nano hollow spheres and high mechanical stability and thermal stability, etc.
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Description

technical field

[0001] The invention relates to silica sphere particles, in particular to a method for preparing hollow nanometer silica spheres. Background technique

[0002] Nanomaterials with hollow structures are currently a hot topic in the field of material research. The polymer micelle can be used to form a polymer hollow structure with a particle size of 1-100 nm. However, most polymer hollow spheres are unstable and swell in air, which severely limits their practical applications. Inorganic hollow nanospheres with a particle size between 1 and 100 nm are functional materials with a special structure. Due to their large specific surface area, high storage capacity, and good mechanical and thermal stability, they have attracted widespread attention in the field of nanotechnology. , It has broad application prospects in the research fields of nano-confinement catalysis, targeted drug (gene) release, adsorption, artificial cells, insulating materials, photonic crystal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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