Production & Quality
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EAA surface blooming
Problem Phenomenon
EAA product surface precipitates white frost-like low molecular substances affecting appearance
Cause Analysis
Low molecular components in EAA migrate to the surface and precipitate during storage; lubricant or plasticizer supersaturated and precipitating
Solution
1) Select high molecular weight EAA to reduce low molecular substances; 2) Reduce lubricant addition to a reasonable level; 3) Clean the product surface and then test to identify the source
Key Takeaway
Blooming is caused by low molecular migration and precipitation; selecting a high molecular weight grade is fundamental
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