Cordierite-based glass ceramic high-temperature binder, preparation method and application thereof

Abstract

The invention provides a cordierite-based glass ceramic high-temperature binder. The cordierite-based glass ceramic high-temperature binder is prepared from the following raw materials: cordierite micro powder, low-temperature glass frit powder and a binder, wherein the cordierite micro powder is prepared from the following raw materials in percentage by weight: 46-54 wt% of clay, 33-37 wt%of talc and 11-19 wt%of aluminum oxide, the low-temperature glass frit powder is prepared from the following raw materials in percentage by weight: 12-15 wt%of MgO, 6-10 wt%of Al2O3, 58-60 wt% of SiO2, 1-3 wt%of B2O3, 4-6 wt%of ZrO2, 3-5 wt%of K2O and 3-5 wt%of Na2O, the mass ratio of the low-temperature glass frit powder to the cordierite micro powder is (2-7):3, and the use amount of the binder is 15-18 wt% of the total amount of the cordierite micro powder and the low-temperature glass frit powder. The invention also provides a preparation method and application of the cordierite-based glass ceramic high-temperature binder. According to the invention, the synthesized cordierite micro powder is directly used, so that the variety, quantity and particle size of crystals in the glass can be better controlled so as to achieve the purpose of regulating and controlling the performance of the cordierite-based glass ceramic; and the heat treatment process is greatly simplified, so that the product cost is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of binder materials, in particular to a cordierite-based glass-ceramic high-temperature binder and a preparation method and application thereof. Background technique [0002] Cordierite-based glass-ceramics is a widely used material, which has the advantages of low thermal expansion coefficient, small dielectric constant, and good mechanical properties. It can be used as building materials, circuit substrate encapsulants, and ceramic adhesives. However, in the traditional preparation method, the precipitation of microcrystals in the basic glass usually adopts a multi-stage heat treatment method, which has extremely strict requirements on temperature, time and equipment, making it difficult to control the crystallization behavior of the glass. As a result, the type and quantity of crystals It is difficult to effectively control the size and size, which increases the difficulty of regulating the performance of...

AI Technical Summary

Problems solved by technology

However, in the traditional preparation method, the precipitation of microcrystals in the basic glass usually adopts a multi-stage heat treatment method, which has extremely strict requirements on temperature, time and equipment, making it difficult to control the crystallization behavior of the glass. As a result, the type and quantity of crystals It is difficult to effectively control the size and size, which increases the difficulty of regulating the performance of materials

Moreover, in addition to the steps of crystallization heat treatment, the traditional method also includes firing steps such as sintering heat treatment and nucleation heat treatment, which not only prolongs the preparation time, but also increases the number of equipment and sites, which affects the production cost

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