Super-hydrophobic matrix material of monoclinic-phase celsian glass ceramic and preparation method thereof

A technology of glass ceramics and matrix materials, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of complex process, impure crystal phase, high energy consumption, etc., and achieve firm structure, increased surface area, and good hydrophobicity performance effect

Active Publication Date: 2021-12-03
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods have the disadvantages of high energy consumption, complex process, impure crystal phase and long cycle time.

Method used

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  • Super-hydrophobic matrix material of monoclinic-phase celsian glass ceramic and preparation method thereof
  • Super-hydrophobic matrix material of monoclinic-phase celsian glass ceramic and preparation method thereof
  • Super-hydrophobic matrix material of monoclinic-phase celsian glass ceramic and preparation method thereof

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preparation example Construction

[0036] The superhydrophobic matrix material and the preparation method thereof of the monoclinic barium feldspar glass ceramics according to the embodiment of the present invention comprise the following steps:

[0037] Step 1: According to the mass percentage of raw materials, 25-55wt% of barium salt, 8-22wt% of aluminum powder, 8-26wt% of silicon powder and 0-30wt% of cosolvent are provided.

[0038] Specifically, the fluxes added to the raw materials can be boric acid and sodium chloride, which can promote the transformation of the hexagonal phase into a monoclinic phase and reduce the melting temperature, and can also effectively reduce energy consumption.

[0039] In step 2, the above raw materials are mixed and melted to obtain a clarified molten glass, and / or a glass frit obtained by quenching a part of the molten glass.

[0040] Wherein, deionized water can be used for quenching. The temperature of the high-temperature melting is 1000-1700° C., and the holding time is...

Embodiment 1

[0053] 1) Provide barium carbonate 55wt%, aluminum oxide 12wt%, silicon dioxide 25wt%, obtain glass powder raw material

[0054] 2) Add 6wt% boric acid and 2wt% sodium chloride to the above-mentioned glass powder raw material, mix thoroughly with a mixer, put it into a platinum crucible, and put it into a lifting type silicon-molybdenum rod electric furnace that has been heated to 1550°C in advance and keep it warm for one hour to melt. Pour the obtained molten glass into deionized water at room temperature and quench to obtain barium feldspar to form a glass frit. The glass frit is broken into small pieces and put into a polyurethane ball mill jar. Water is used as deionized water as the dispersion medium, zirconia balls are used as the ball milling medium, and the ball: glass: water mass ratio is about 3:1:1, and the ball is milled on a ball mill. Pour the ball-milled slurry into a clean enamel basin, and dry it in an electric blast drying oven at 75°C. The dried block is...

Embodiment 2

[0064] 1) Provide barium carbonate 54wt%, aluminum oxide 12wt%, silicon dioxide 25wt%, obtain glass powder raw material

[0065] 2) Add 8wt% boric acid and 1wt% sodium chloride to the above-mentioned glass powder raw material, mix thoroughly with a mixer, put it into a platinum crucible, and put it into a lifting type silicon-molybdenum rod electric furnace that has been heated to 1550°C in advance and keep it warm for one hour to melt. Pour the obtained molten glass into deionized water at room temperature and quench to obtain barium feldspar to form a glass frit. The glass frit is broken into small pieces and put into a polyurethane ball mill jar. Water is used as deionized water as the dispersion medium, zirconia balls are used as the ball milling medium, and the ball: glass: water mass ratio is about 3:1:1, and the ball is milled on a ball mill. Pour the ball-milled slurry into a clean enamel basin, and dry it in an electric blast drying oven at 75°C. The dried block is...

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Abstract

The invention discloses a super-hydrophobic matrix material of monoclinic-phase celsian glass ceramic and a preparation method thereof, and the preparation method comprises the following steps: providing 25-55 wt% of barium salt, 8-22 wt% of aluminum powder, 8-26 wt% of silicon powder and 0-30 wt% of cosolvent according to the mass percentage of the raw materials; mixing the raw materials, melting to obtain clarified glass liquid, and / or quenching a part of the glass liquid to obtain glass frit; forming the molten glass to obtain a glass blank, and / or crushing and forming the glass frit to obtain a glass ceramic blank; putting the glass blank and / or the ceramic blank into a high-temperature furnace for sintering crystallization treatment to obtain glass ceramic with monoclinic celsian as a main crystal phase; performing corrosion treatment on the glass ceramic to corrode all or part of glass phase so that the glass ceramic super-hydrophobic base material with the monoclinic celsian as the main crystal phase is obtained. The method is simple, consumes less time and energy, and can be used for obtaining the ceramic material of which the principal crystalline phase is baryta feldspar and the surface is provided with a self-growing micro-nano convex frame structure.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a superhydrophobic matrix material and a preparation method of monoclinic barium feldspar glass ceramics. Background technique [0002] Barium feldspar ceramics are ceramic materials in which barium feldspar is the main crystal phase. The chemical composition of barium feldspar is BaO·Al2O3·2SiO2, which is the only stable ternary compound in the BaO-Al2O3-SiO2 ternary system. Barium feldspar ceramics have the characteristics of good thermal shock resistance and low dielectric constant. [0003] How to realize the self-growth of the micro- or nano-frame structure on the surface of barium feldspar glass ceramics and achieve the purpose of obvious protrusion of this structure through etching, and at the same time must ensure that barium feldspar is a relatively pure monoclinic crystal phase is a major difficulty. At present, some researchers construct micro-nano-rough structures ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/06C03B19/06C03B32/02C03C15/00
CPCC03C10/0036C03B19/06C03B32/02C03C15/00
Inventor 廖红卫钟文升熊必陈伍满元詹文俊
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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