Material Drying
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HDPE antistatic modification
Problem Phenomenon
HDPE products attract dust by static electricity, and there is electrostatic discharge risk in electronic packaging scenarios
Cause Analysis
HDPE has good insulation and high surface resistance, making static accumulation difficult to discharge; the antistatic agent migrates to the surface and absorbs moisture to conduct electricity; the antistatic effect decreases in dry environments; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
①Select antistatic grades for static-sensitive scenarios; ②manage ambient humidity to ensure the antistatic effect; ③use permanent antistatic systems for electronic packaging; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
HDPE antistatic relies on the surface migration mechanism; humidity dependence and the choice of permanent systems are application key points; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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