High strength fire resistant paper faced gypsum board and method of making same

By loading nano-silica and nano-calcium carbonate onto the surface of glass fiber, the problem of agglomeration of nanomaterials in paper-faced gypsum board was solved, resulting in better flame retardant properties and improved mechanical strength.

CN122402005APending Publication Date: 2026-07-17TAISHAN GYPSUM (NANTONG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TAISHAN GYPSUM (NANTONG) CO LTD
Filing Date
2026-06-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, nanomaterials tend to agglomerate in paper-faced gypsum board, resulting in limited improvement in flame retardant properties and strength.

Method used

Nano-silica and nano-calcium carbonate are loaded onto the surface of glass fibers, and the glass fibers are treated with γ-aminopropyltriethoxysilane and 2-hydroxy-4-(3-triethoxysilanepropoxy)benzophenone to form a pit structure. The nanomaterials are uniformly dispersed by the interaction of positive and negative charges.

Benefits of technology

It improves the flame retardant properties and mechanical strength of paper-faced gypsum board, prevents the agglomeration of nanomaterials, and further enhances the overall performance of paper-faced gypsum board.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及纸面石膏板制备技术领域,具体是一种高强阻燃纸面石膏板及其制备方法,纸面石膏板包括板芯和护面纸,所述护面纸设置有两层、且分别贴合于板芯两侧形成纸面石膏板结构;所述板芯的原料按质量份包括如下组份的原材料:石膏熟料42‑48份、减水剂0.05‑0.15份、缓凝剂0.2‑0.3份、发泡剂0.1‑0.3份、淀粉1‑3份、改性纤维3‑6份、水18‑21份。本发明制备得到的纸面石膏板,通过两种纳米材料相互配合,有效负载到玻璃纤维的表面上,防止纳米材料在石膏基料中发生团聚,进一步提高纸面石膏板的阻燃性能以及机械强度。
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