Material Analysis
6 Aufrufe
Weather resistance of modified methyl methacrylate-butadiene-styrene copolymer not up to standard
Problembeschreibung
Weather resistance of modified methyl methacrylate-butadiene-styrene copolymer is not up to standard; yellowing, embrittlement, or obvious performance decline after outdoor use
Ursachenanalyse
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
Lösung
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
Wichtigste Erkenntnis
Weather resistance needs to start from UV absorbers and antioxidants
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!