Material Analysis
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PPSU flame retardant non-dripping
Problem Phenomenon
PPSU itself is highly flame retardant V-0, but thin walls still require verification.
Cause Analysis
The PPSU main chain contains sulfone groups and aromatic rings, imparting intrinsic flame retardancy.
Solution
Wall thickness <0.8mm still requires UL94 verification; sufficient wall thickness.
Key Takeaway
PPSU flame retardancy is the foundation of its aviation applications.
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