Material Analysis
14 visualizações
PLA Thermal Degradation Products
Fenómeno do problema
Irritating odor appears in the PLA high-temperature processing workshop, and the safety assessment requires a clear composition
Análise das causas
PLA begins to degrade at 300℃ and is 90% degraded at 450℃; the thermal degradation products contain irritating substances such as acetaldehyde, acrolein, methanol and acetic acid; combustible in fire
Solução
①Keep the processing temperature away from the 300℃ degradation zone; ②Workshop exhaust configuration; ③Compile the safety data sheet per the degradation products; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PLA's thermal safety boundary is at 300℃; the degradation product list is the basis for workshop safety assessment; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!