Glass powder with strong impact resistance and adjustable expansion coefficient and preparation method thereof

A technology of expansion coefficient and impact resistance, which is applied in the field of glass powder and its preparation, can solve problems such as poor impact resistance, and achieve the effects of low cost, good impact resistance, and adjustable expansion coefficient

Inactive Publication Date: 2021-03-12
黄山市晶特美新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to improve the problem that the existing glass powder has a low melting point but poor impact resistance. The expansion coefficient of the glass powder of the present invention can be adjusted within a certain range through different heat treatment processes. Corresponding heat treatment can be performed according to the expansion coefficient requirements to obtain glass frits with matching expansion coefficients, which can be used for sealing different materials and expanding its application field

Method used

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  • Glass powder with strong impact resistance and adjustable expansion coefficient and preparation method thereof
  • Glass powder with strong impact resistance and adjustable expansion coefficient and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Weigh SiO by parts by weight 2 : 30 parts, Bi 2 o 3 : 40 parts, ZnO: 5 parts, BaO: 1 part, Al 2 o 3 : 6 parts, SnO 2 : 3 parts, Na 2 O: 2 copies, B 2 o 3 : 5 parts, Li 2 O: 3 parts, TiO 2 : 5 parts of each raw material and fully mixing it to obtain a mixture;

[0018] (2) Put the mixed material obtained in step (1) into a crucible and place it in a high-temperature kiln for melting, the melting temperature is 1000° C., and the above-mentioned melting time is 50 minutes to obtain molten glass;

[0019] (3) carrying out water quenching cooling to the molten glass obtained in step (2) to obtain cullet;

[0020] (4) transfer the cullet block obtained in step (3) to a ball mill and carry out ball milling to obtain glass powder;

[0021] (5) Dry the glass powder material obtained in step (4) in a drying oven, the drying temperature is 100°C, and the drying time is 2h, and after sieving with a 250-mesh sieve, dry glass powder, glass The particle size of the pow...

Embodiment 2

[0023] (1) Weigh SiO by parts by weight 2 : 40 parts, Bi 2 o 3 : 30 parts, ZnO: 8 parts, BaO: 2 parts, Al 2 o 3 : 0 parts, SnO 2 : 1 part, Na 2 O: 4 copies, B 2 o 3 : 10 parts, Li 2 O: 4 parts, TiO 2 : 1 part of each raw material and fully mixing it to obtain a mixture;

[0024] (2) Put the mixture obtained in step (1) into a crucible and place it in a high-temperature kiln for melting, the melting temperature is 1080° C., and the above-mentioned melting time is 40 minutes to obtain molten glass;

[0025] (3) carrying out water quenching cooling to the molten glass obtained in step (2) to obtain cullet;

[0026] (4) transfer the cullet block obtained in step (3) to a ball mill and carry out ball milling to obtain glass powder;

[0027] (5) Dry the glass powder material obtained in step (4) in a drying oven, the drying temperature is 120°C, and the drying time is 1h, and after sieving with a 250-mesh sieve, dry glass powder, glass The particle size of the powder sat...

Embodiment 3

[0029] (1) Weigh SiO by parts by weight 2 : 45 parts, Bi 2 o 3 : 20 parts, ZnO: 7 parts, BaO: 2 parts, Al 2 o 3 : 2 parts, SnO 2 : 0 parts, Na 2 O: 1 copy, B 2 o 3 : 15 parts, Li 2 O: 4 parts, TiO 2 : 4 parts of each raw material are fully mixed to obtain a mixture;

[0030] (2) Put the mixture obtained in step (1) into a crucible and place it in a high-temperature kiln for melting, the melting temperature is 1200° C., and the above-mentioned melting time is 40 minutes to obtain molten glass;

[0031] (3) carrying out water quenching cooling to the molten glass obtained in step (2) to obtain cullet;

[0032] (4) transfer the cullet block obtained in step (3) to a ball mill and carry out ball milling to obtain glass powder;

[0033](5) Dry the glass powder material obtained in step (4) in a drying oven, the drying temperature is 140°C, and the drying time is 1h, and after sieving with a 250-mesh sieve, dry glass powder, glass The particle size of the powder satisfie...

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Abstract

The invention discloses glass powder with strong impact resistance and adjustable expansion coefficient and a preparation method thereof. The glass powder is prepared from the following raw materialsin parts by weight: 20-50 parts of SiO2, 20-40 parts of Bi2O3, 0-6 parts of Al2O3, 2-10 parts of ZnO, 5-20 parts of B2O3, 0-4 parts of SnO2, 0-2 parts of BaO, 1-8 parts of TiO2, 1-5 parts of Na2O and2-8 parts of Li2O. The preparation method of the glass powder comprises the following steps of mixing the raw materials, melting at high temperature, water quenching and cooling, performing ball milling, drying and sieving. Before the prepared glass powder is used, the glass powder with different expansion coefficients can be obtained through different heat treatment processes. The glass powder with different expansion coefficients can be obtained through a subsequent heat treatment process, can be matched with different glass, ceramic, metal and other base materials, and has a wide application range; and silicon oxide and bismuth oxide in the glass powder raw material can form bismuth silicate crystals at a certain temperature, so that the impact resistance and the acid resistance are enhanced.

Description

technical field [0001] The invention relates to the technical field of glass powder, in particular to a glass powder with strong impact resistance and adjustable expansion coefficient and a preparation method thereof. Background technique [0002] Glass is also indispensable in the lives of modern people, such as car windshields, smartphone screen glass, and building window glass. Paste is used for glass decoration, which is a landscape in modern society. It satisfies people's pursuit of beauty and multi-functionality. Glass paste is generally made of low-melting point glass powder, varnish, inorganic pigments and additives by mixing, dispersing and grinding, among which low-melting point glass powder is the most important component in glass paste, accounting for 55% of the total content of glass paste -80%, the performance of glass powder directly affects the quality of the sintered glass paste layer, such as glass components, sintering temperature, holding time, dosage an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/24C03C6/04C03C10/04
CPCC03C8/24C03C1/00C03C10/00
Inventor 朱盟盟
Owner 黄山市晶特美新材料有限公司
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