Novel needled rock wool batts and method of production
By using a high-slag fluorite formula and a three-dimensional entangled structure, combined with a low-temperature curing process, the problems of weak interlayer bonding and poor temperature resistance of traditional rock wool rolls have been solved, resulting in high-strength, high-flexibility rock wool rolls suitable for thermal insulation in high-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEJIAN JIULONG BUILDING MATERIALS CO LTD
- Filing Date
- 2026-05-18
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional rock wool rolls have weak interlayer bonding, are prone to delamination and cracking, have poor temperature resistance and low tensile strength. Furthermore, the adhesive is prone to decomposition and powdering in high-temperature environments, resulting in a sharp drop in strength. They are also hard, have poor flexibility and adhesion, and are not suitable for construction.
A formula with a high proportion of slag and fluorite is used to form a three-dimensional entangled structure. Combined with a low-temperature curing process, a fiber network is constructed through a specific gradient needle punching process to replace the traditional layered bonding structure and enhance interlayer bonding and tensile strength.
It significantly improves the tensile strength and flexibility of rock wool rolls, maintains structural stability at high temperatures, does not pulverize or shed slag, is suitable for thermal insulation in high-temperature environments, is easy to construct, and adapts to irregular curved surfaces.
Smart Images
Figure CN122403783A_ABST