Material Drying
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PBAT coating application
Problem Phenomenon
PBAT coating adhesion and uniformity, coating on paper or film.
Cause Analysis
PBAT coating adhesion; melt viscosity; coating uniformity; drying and curing; substrate matching.; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
①Adhesion promotion; ②viscosity control; ③coating process; ④curing optimization; ⑤substrate treatment.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PBAT coating is a composite application; adhesion and uniformity are quality; process matching ensures effect.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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