Moisture-proof material for gypsum-based board and preparation method of moisture-proof material

By constructing a multi-layer composite moisture-proof material structure on gypsum-based boards, including a silane coupling layer, an organosilicon waterproof layer, a nano-titanium dioxide layer, and an acrylic layer, and combining it with suitable drying conditions, the problems of poor moisture-proof performance and paint peeling of gypsum-based boards are solved, thereby improving the moisture-proof effect and the overall performance of the boards.

CN120965370APending Publication Date: 2025-11-18BEIJING NEW BUILDING MATERIALS PLC
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Patent Information

Application Number
CN202510858808.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing gypsum-based boards have poor moisture resistance, and the waterproof coating is prone to peeling off, affecting the moisture-proof effect.

Method used

It adopts a multi-layer composite moisture-proof material structure, including a substrate layer, a silane coupling layer, an organosilicon waterproof layer, a nano titanium dioxide layer, and an acrylic layer. The working solution is prepared and each layer is sprayed on the surface of the gypsum board substrate. Combined with appropriate drying temperature and time control, it is finally covered with aluminum foil.

Benefits of technology

It achieves excellent moisture-proof function, reduces the probability of paint peeling, and endows gypsum-based boards with self-cleaning and antibacterial functions, significantly improving overall performance and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a moisture-proof material for a gypsum-based board and a preparation method of the moisture-proof material, and relates to the technical field of gypsum boards, the moisture-proof material comprises a base board layer, a silane coupling layer, an organic silicon waterproof layer, a nanometer titanium dioxide layer and an acrylic acid layer, the silane coupling layer is composed of gamma-aminopropyltriethoxysilane, and the organic silicon waterproof layer is composed of gamma-aminopropyltriethoxysilane. And the organic silicon waterproof layer is prepared from polymethylsiloxane. According to the multi-layer composite moisture-proof material structure, all the layers have a synergistic effect, the excellent moisture-proof function is achieved, the falling probability of the coating is reduced, the gypsum-based board is endowed with additional functions such as self-cleaning and antibacterial functions, the comprehensive performance of the gypsum-based board is remarkably improved, and the service life of the gypsum-based board is remarkably prolonged. Therefore, the device can better adapt to various complex use environments and meet the application requirements of different fields.
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