一种高熵层状双氢氧化物包覆型阻燃抑烟剂及其制备方法与应用
By introducing a high-entropy layered double hydroxide-coated flame retardant and smoke suppressant into TPU, the problems of TPU's flammability and dispersion difficulties are solved, achieving a synergistic improvement in flame retardancy and smoke suppression, and ensuring the safety and processing stability of the material.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH OF CHINA
- Filing Date
- 2026-03-17
- Publication Date
- 2026-07-17
AI Technical Summary
Thermoplastic polyurethane (TPU) materials are flammable and have a high heat release rate during combustion, accompanied by melting and dripping, smoke release and harmful gases, which leads to the risk of flame spread and secondary ignition. In addition, existing flame retardants are difficult to disperse in TPU, resulting in poor flame retardant effect.
A high-entropy layered double hydroxide-coated flame retardant and smoke suppressant is adopted. The smoke suppressant and phosphorus-based flame retardant are chemically bonded by a silane coupling agent to form a core-shell structure. LDH is grown in situ on the surface of the flame retardant using a hydrothermal reaction to form a stable core-shell integrated additive.
This approach simultaneously enhances the flame retardancy and smoke suppression properties of TPU materials, reduces heat transfer and smoke particle generation during combustion, improves the processing stability and flame retardant effect of the materials, and avoids the problems of layering and agglomeration in multi-component systems.
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Abstract
Citation Information
Patent Citations
Nano-material covered type flame retardant and preparation method thereof
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