Extrusion & Post
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PBAT lubricant application
Problem Phenomenon
Improper use of PBAT lubricant, balancing processing improvement and performance side effects.
Cause Analysis
Lubricant improves processing flowability; excessive amount migrates and precipitates; affects heat sealing and printing; type selection; dispersion uniformity.; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
①Lubricant type selection; ②minimize the addition amount; ③uniform dispersion; ④migration and performance testing.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PBAT lubricant is a double-edged sword as a processing aid; the minimum effective amount is the principle; test and evaluate side effects.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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