Material Analysis
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PBT Products Failing to Reach V-0 Flame Retardant Rating
Problembeschreibung
In the UL94 flame retardant test, PBT products fail to reach the V-0 rating.
Ursachenanalyse
The flame retardant formulation is improper or the dosage is insufficient; the product wall thickness is too thin, and heat accumulates quickly during combustion; the flame retardant is unevenly dispersed.
Lösung
Optimize the ratio and dosage of the flame retardant (bromine-based + Sb₂O₃ or other combinations); ensure the minimum wall thickness of the product is ≥0.8mm.
Wichtigste Erkenntnis
PBT flame retardancy requires sufficient wall thickness and a reasonable formulation.
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