一种阻燃聚氨酯密封泡沫及其制备方法
By introducing flame-retardant polyether polyol and highly reactive crosslinking agent into polyether component A, combined with fumed silica, the problems of anti-flow and flame retardancy in the on-site casting process of polyurethane components A and B are solved, achieving efficient sealing effect and flame retardant performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WANHUA CHEM BEIJING
- Filing Date
- 2023-04-10
- Publication Date
- 2026-07-17
AI Technical Summary
In the on-site casting and foaming process of polyurethane A and B materials, existing technologies cannot simultaneously achieve good anti-flow and flame retardancy. Liquid flame retardants result in poor foam resilience, while solid flame retardants are prone to clogging equipment pipelines and affecting the sealing effect.
Flame-retardant polyether polyol and highly reactive crosslinking agent are introduced into polyether component A, combined with fumed silica, and components A and B are mixed by a coating machine and poured on site to form flame-retardant polyurethane sealing foam.
It achieves high efficiency in preventing flow and excellent flame retardant properties, with good foam sealing effect, and is suitable for sealing parts with complex shapes, especially accessories with flame retardant requirements.
Smart Images
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