Extrusion & Post
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PBAT lamination strength
Problem Phenomenon
Insufficient lamination strength between PBAT film and other materials, interlayer peeling.
Cause Analysis
PBV compatibility with the lamination layer; lamination process; adhesive selection; surface treatment; heat seal temperature.; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
①Compatibility evaluation; ②adhesive matching; ③surface treatment; ④lamination process optimization.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Interlayer bonding of PBV lamination is structural performance; compatibility and process are equally important; testing verifies strength.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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