Material Analysis
5 visualizaciones
Weather resistance of modified methyl methacrylate-butadiene-styrene copolymer not up to standard
Fenómeno del problema
Weather resistance of modified methyl methacrylate-butadiene-styrene copolymer is not up to standard; yellowing, embrittlement, or obvious performance decline after outdoor use
Análisis de la causa
No ultraviolet absorber added or insufficient addition amount
Incomplete antioxidant system
Poor compatibility between ultraviolet absorber and methyl methacrylate-butadiene-styrene copolymer
Antioxidant consumed and degraded during processing
Unreasonable formulation design
Solución
Add appropriate ultraviolet absorber (0.2-0.5%)
Improve the antioxidant system, main/auxiliary antioxidant coordination
Select UV absorbers with good compatibility
Avoid high-temperature degradation of antioxidants during processing
Optimize formulation design
Conclusión clave
Weather resistance needs to start from UV absorbers and antioxidants
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!