Molding Process
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PVA water-soluble film dissolution rate mismatch
Problem Phenomenon
PVA water-soluble film dissolution time deviation at target temperature >30%
Cause Analysis
PVA alcoholysis degree does not match the application temperature requirement; large film thickness deviation
Solution
1) Select PVA alcoholysis degree matching the target dissolution temperature; 2) Film thickness precise ±5%; 3) Adjust formulation liquid to adjust dissolution rate
Key Takeaway
PVA water-soluble film dissolution rate is determined by alcoholysis degree and thickness
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