Molding Process
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The cracking problem of PBAK acrylate type in blending
Problem Phenomenon
Polybutyl acrylate-type PBAK exhibited cracking during blending processing at 80-150°C.
Cause Analysis
Improper crosslinking degree of PBAK caused the problem.
Solution
Adjust Tg.
Key Takeaway
PBAK for coating and adhesive applications requires fine formulation design.
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