Blow Molding
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PLA vs PP/PS Comparison
Fenómeno do problema
PLA replaces PP/PS for disposable products, with dual gaps in performance and cost
Análise das causas
PLA processing technology is similar to PS/PET but the window is narrower; brittleness, heat resistance and cost are all inferior to PP/PS; the advantages lie in bio-based and compostable; trade-off per environmental needs and performance
Solução
①Choose PLA for environmental regulation-driven scenarios; ②Choose PP/PS for performance-cost priority scenarios; ③Modified PLA narrows the performance gap; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PLA replacing PP/PS trades performance for environmental benefits; regulations and brand needs are the real drivers of adoption; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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