一种高发泡倍率且阻燃的化学交联聚烯烃发泡材料
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUBEI XIANGYUAN NEW MATERIAL TECH INC
- Filing Date
- 2024-12-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing chemically cross-linked polyolefin foam materials have problems such as unstable foaming ratio, uneven appearance, bubbles and pores when using halogenated flame retardants and antimony-based flame retardants. In addition, the residual amount of azodicarbonamide in the foaming agent exceeds the standard and cannot meet the relevant regulatory requirements.
Bromine-based flame retardants and antimony trioxide/wollastonite composite powder were used as flame retardants. Through physical adsorption, nano-antimony trioxide covered more than 40% of the surface area of wollastonite. Combined with functional flame retardants, the component ratio and process flow were optimized to prepare polyolefin foam materials with high foaming ratio and flame retardancy.
It achieves high foaming ratio (25~45), smooth appearance, and excellent flame retardant performance (UL94 horizontal burning HF-1 rating, total afterflame time and afterglow time ≤15s), while solving the problem of excessive azodicarbonamide residue and meeting relevant regulatory requirements.
Smart Images
Figure CN119684701B_ABST