Soft chemical preparation method for hollow glass micro-balloon, prepared hollow glass micro-balloon and application thereof

A hollow glass microsphere, soft chemical technology, applied in the field of soft chemical method, can solve the problems of high cost, low energy consumption, difficult to control particle size distribution and the like
CN102583973AActive Publication Date: 2012-07-18TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2012-07-18

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Abstract

The invention belongs to the technical field of a soft chemical method. According to the invention, the method is used for overcoming the defects that the traditional solid-phase glass powder method for preparing a hollow glass micro-balloon is high in energy consumption, long in technical process and difficult in controlling grain size distribution and the hollow glass micro-balloon prepared according to a liquid-phase atomizing method is high in alkalinity, easy to absorb water, high in strength and easy to break, and the like. A liquid material system is compounded through a chemical reaction; after the system is homogenized, the system is quickly atomized, dewatered and dried, thereby obtaining approximate spherical precursor powder with required grain size and corresponding distribution; and the powder is treated under high temperature at 600-1100 DEG C, thereby obtaining a micron-scale hollow glass micro-balloon with the volume floating rate being above 90%, the SiO2 content (weight) being 55-88%, the true density being 0.1-0.7g / cm<3> and the compression strength being 1-50MPa. The method is low in energy consumption, free from fusion and sintering, and high in yield. The prepared hollow glass micro-balloon is high in compression strength, light in weight, low-alkali, waterproof, excellent in fluidity and dispersibility, and suitable for various high-performance light compound materials.
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Description

technical field

[0001] The invention belongs to the technical field of soft chemical methods, in particular, the invention relates to a method of preparing hollow glass microspheres by using silicon dioxide and / or silicate solution, sol or water slurry, and the prepared hollow glass microspheres and its application. Background technique

[0002] Hollow Glass Microsphere HGM (Hollow Glass Microsphere) is a light particle powder material with a spherical hollow structure with a particle size of micron. It has heat insulation, insulation, sound insulation, high strength, wear resistance, corrosion resistance, radiation protection, and water absorption. Low rate, chemical stability, excellent fluidity and dispersion. It is chemically composed mainly of silicate glass systems, usually preferably of alkali metal or alkaline earth metal borosilicate systems with some oxide additions. In recent years, its application fields are very extensive, and the main application fields are: ...

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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