Material Analysis
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PET bottle drop test rupture
Problem Phenomenon
PET bottle body ruptures in 1.2m or 1.5m drop tests, not meeting product standards.
Cause Analysis
Insufficient or unevenly distributed bottle wall thickness, stress concentration points in bottle body design, material IV too low or recycled material ratio too high.
Solution
Optimize bottle shape to reduce stress concentration; increase wall thickness (bottom and shoulder); use high-IV raw material ≥0.80; optimize gate position.
Key Takeaway
PET bottle drop performance is the comprehensive result of bottle shape design, material selection, and process.
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