Hollow ceramic microsphere and preparation method of hollow ceramic microsphere

Abstract

The invention relates to a hollow ceramic microsphere and a preparation method of the hollow ceramic microsphere, belonging to the technical field of ceramic microspheres. The hollow ceramic microsphere is a ceramic ball with a hollow structure, and the hollow ceramic ball is in a core-shell structure formed by cladding TiO2 on SiC. The preparation method of the hollow ceramic microsphere comprises the following steps: 1. preparation of a solid microsphere: (1) producing a polystyrene microsphere; (2) carrying out sulfonation; and (3) cladding a layer of ceramic precursor; 2. cladding the TiO2 on the surface of the polystyrene solid microsphere clad with the ceramic precursor: (1) dispersing the microsphere in a mixed solution of ethanol and dibutyl phthalate; (2) adding acid and deionized water into the mixed solution; and (3) carrying out hydrothermal treatment to obtain the polystyrene solid microsphere clad with the ceramic precursor; and 3. preparation of the hollow ceramic microsphere: placing the polystyrene solid microsphere clad with the ceramic precursor with the surface being clad with the TiO2 in a vacuum furnace for sintering to obtain the hollow ceramic microsphere. The hollow ceramic microsphere and the preparation method have the advantages of high product activity, excellent performance, good thermal insulation effect, wide applicable range and the like.

Description

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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AI Technical Summary

Benefits of technology

This patented process describes methods for making small spherules (having diameter between 1-5 mm) containing silicon dioxide microparticles encased within glass or plastic particles called poly(methyl methacrylate). These tiny balls act like mini mirrors on surfaces they hit during use. They help reduce friction while still allowing light transmission through them without losing their ability to reflect back into space around us. Additionally, these techniques allow for precise control over particle size distribution and purity levels. Overall, this technology allows creation of new types of opaque ceramics such as those used in various industries including defense applications where fireproof properties must meet specific requirements.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving thermal insulators made from conventional fibre/porcelain composites while maintaining transparency (transparent) properties without losing them due to damage caused by external factors like weather exposure over prolonged periods.