Extrusion & Post
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The cracking problem of PBAK acrylate type in coating
Problem Phenomenon
Polybutyl acrylate-type PBAK exhibited cracking during coating processing at 80-150°C.
Cause Analysis
Improper Tg design of PBAK caused the problem.
Solution
Optimize the polymerization process.
Key Takeaway
PBAK for coating and adhesive applications requires fine formulation design.
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