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Hollow glass microsphere

A hollow glass microsphere and micron-level technology, which is applied in the field of soft chemistry, can solve the problems that do not involve the specific components and preparation process of the hollow glass microspheres.

Inactive Publication Date: 2016-01-27
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the patent does not involve the specific components and preparation methods of hollow glass microspheres

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] The first step is the synthesis of the feed-liquid system of hollow glass microspheres:

[0031] Mix 4000g slurry containing 600g fumed silica and 485g sodium silicate solution (containing 121g of silicon dioxide and 39g of sodium oxide) with 517g containing 60g of borax, 60g of sodium nitrate, 90g of calcium carbonate, 40g of magnesium chloride, and 40g of potassium nitrate 1. The aqueous solution of 20g of lithium carbonate is prepared into a water slurry material, and then it is fully mixed with a high-speed mixer at 30°C and normal pressure, and after reaction, 200ml of high molecular polymer glue containing 10g of stable dispersant polyethylene oxide is added , Grinding by a colloid mill to form a homogenized slurry, so that the particle size of the solid particles in the slurry is at least less than 2 microns. Wherein, gas-phase silica and sodium silicate account for 15.2% by weight in the feed liquid, inorganic salts account for 6.2% by weight in the feed liquid,...

Embodiment 2

[0035] The first step is the synthesis of the feed-liquid system of hollow glass microspheres:

[0036] Prepare 4000g of slurry containing 600g of fumed white carbon black and 364g of sodium silicate solution (containing 91g of silicon dioxide and 29g of sodium oxide) and 350g of aqueous solution containing 40g of borax, 60g of sodium sulfate, 90g of calcium nitrate, and 20g of potassium nitrate Form a water slurry material, then fully mix it with a high-speed mixer at 30°C and normal pressure, after reaction, add 200ml of high-molecular polymer glue containing 5.5g of stable dispersant polyethylene oxide, and grind it through a colloid mill to form Homogenized slurry, so that the particle size of solid particles in the slurry is at least less than 2 microns. Wherein, gas-phase silica and sodium silicate account for 15.3% by weight in the feed liquid, inorganic salts account for 4.5% by weight in the feed liquid, and stable dispersants account for 0.12% by weight in the feed l...

Embodiment 3

[0040] The first step is the synthesis of the feed-liquid system of hollow glass microspheres:

[0041] Mix 3333g slurry containing 500g fumed silica and 198g sodium potassium silicate solution (containing 53.3g of silicon dioxide, 8.9g of sodium oxide, and 17.8g of potassium oxide) with 440g of 60g of boric acid, 50g of sodium sulfate, and 90g of calcium carbonate , 20g of magnesium sulfate aqueous solution is prepared into a water slurry material, and then it is fully mixed with a high-speed mixer at 80°C and normal pressure, and after reaction, add a high molecular polymer glue containing 5.0g of a stable dispersant polyethylene oxide 200ml, through the colloid mill to form a homogenized slurry, so that the particle size of the solid particles in the slurry is at least less than 2 microns. Wherein, gas-phase silica and potassium sodium silicate account for 14.6% by weight in the feed liquid, inorganic salts account for 5.5% by weight in the feed liquid, and stable dispersan...

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Abstract

The invention discloses a hollow glass microsphere. The hollow glass microsphere is prepared by a soft-chemistry method; a thin wall of the hollow glass microsphere contains the ingredients in content (by weight): 55-88% of silicon dioxide, 3-30% of boron oxide, 2-32% of sodium oxide, 0-15% of calcium oxide, 0-5% of aluminum oxide, 0-5% of magnesium oxide, 0-5% of potassium oxide and 0-2% of lithium oxide, and has the density of 0.1-0.7g / cm<3>. The hollow glass microsphere is high in compressive strength, good in fluidity and dispersity and thin and uniform in wall and is lightweight, low in alkali content and waterproof.

Description

[0001] This application is a divisional application of Chinese patent application number 201210056295.5, titled a soft chemical preparation method of hollow glass microspheres and the prepared hollow glass microspheres and their applications technical field [0002] The invention belongs to the technical field of soft chemical methods, in particular, the invention relates to the preparation of hollow glass microspheres by using silicon dioxide and / or silicate solution, sol or water slurry through soft chemical methods and its application. Background technique [0003] Hollow glass microsphere HGM (HollowGlassMicrosphere) is a light-weight 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 low water absorption. , chemical stability, excellent fluidity and dispersion. It is chemically composed mainly of si...

Claims

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Application Information

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IPC IPC(8): C03C12/00C03B19/10
Inventor 张敬杰宋广智崔燕菲张连水杨岩峰潘顺龙
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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