Ultrafine powder high-temperature resistant material for hot repairing of glass kiln and preparation method thereof

By preparing ultrafine powder high-temperature resistant materials, and utilizing the cross-linking reaction of chitosan-coated nano-silica with phosphate binder, the problem of poor strength and high-temperature resistance of glass furnace repair materials was solved, achieving high strength and stability of materials at high temperatures.

CN122145186APending Publication Date: 2026-06-05SHANDONG SHENGWEI NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG SHENGWEI NEW MATERIALS CO LTD
Filing Date
2026-05-08
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing glass furnace repair materials have poor strength and high-temperature resistance, making it difficult to meet the actual application requirements of high-temperature furnaces.

Method used

A repair material with high mechanical strength and high temperature resistance was prepared by using ultrafine powder high-temperature resistant material and cross-linking reaction of chitosan-coated nano-silica with phosphate binder. The material is composed of silica brick powder, fused silica powder, clay and phosphate-coated chitosan nano-silica.

Benefits of technology

It improves the mechanical strength and high-temperature resistance of the repair material, ensuring that it is not easy to crack or fall off at high temperatures. It also has higher high-temperature compressive strength and fire resistance, and reduces dimensional changes at high temperatures.

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Abstract

The application relates to the technical field of repairing materials, and discloses a superfine powder high-temperature-resistant material for hot repairing of a glass kiln and a preparation method. The superfine powder high-temperature-resistant material comprises the following raw materials in parts by weight: 45-58 parts of silica brick powder, 24-36 parts of fused quartz powder, 8-15 parts by weight of a binding agent, 2-5 parts of phosphoric acid chitosan-coated nano silicon dioxide and the like. The phosphoric acid chitosan-coated nano silicon dioxide introduces a large amount of phosphoric acid groups, can play a binding agent role, forms a chemical force with the surfaces of the silica brick powder, the fused quartz powder and clay, is combined more densely, is uniformly filled in the gaps between the silica brick powder and the fused quartz powder, improves the compactness of the repairing material slurry, has larger mechanical strength after sintering, better high-temperature resistance, higher high-temperature compression strength and refractoriness, and lower permanent change of a heating wire, and is more excellent in high-temperature size stability.
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