Material Analysis
6 views
LGFPP recycled material performance degradation
Problem Phenomenon
After adding 30% recycled material, product performance declines by more than 40%
Cause Analysis
The glass fiber length in the recycled material is only below 30% of the original length; multiple thermal histories break the chemical bonds at the PP-glass fiber interface; the PP matrix itself degrades and the molecular weight decreases
Solution
Strictly control the recycled material addition ratio ≤20-30%; fully premix recycled material with virgin material; use recycled material preferentially for non-critical structural parts
Key Takeaway
Multiple thermal histories of LGFPP cause irreversible performance degradation
Was this helpful?
0 people found this helpful
Thank you for your feedback!