Material Analysis
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Modified cellulose acetate butyrate flame retardant rating not up to standard
Problem Phenomenon
Modified cellulose acetate butyrate flame retardant rating not up to standard, vertical burning or horizontal burning test fails to pass the target rating
Cause Analysis
Flame retardant addition amount insufficient
Poor compatibility between flame retardant and cellulose acetate butyrate, uneven dispersion
Flame retardant decomposes and fails at processing temperature
Improper flame retardant system design
Processing temperature too high, flame retardant degradation
Solution
Increase flame retardant addition amount
Select flame retardants with good compatibility
Select flame retardants stable within the processing temperature range
Optimize flame retardant system design
Control processing temperature to avoid flame retardant degradation
Key Takeaway
Flame retardancy needs to be addressed from addition amount, compatibility, and system design
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