Molding Process
8 visualizaciones
PC Anti-UV Grade Yellowing
Fenómeno del problema
Outdoor PC parts yellow after a period of use, and light transmission and appearance deteriorate.
Análisis de la causa
Ordinary PC has poor UV resistance; outdoor use without selecting an anti-UV grade or adding an anti-UV layer causes photodegradation and yellowing; ultraviolet rays trigger molecular chain breakage and chromophore formation.
Solución
①Select anti-UV grades for outdoor parts or co-extrude a UV protective layer; ②Evaluate the product's sun protection design; ③Do UV aging tests for verification; ④Add a UV coating on the surface when necessary; ⑤Control outdoor exposure conditions.
Conclusión clave
Outdoor PC 'must be equipped with a UV protection solution': ordinary PC not being sun-resistant is the material's nature; consider anti-UV at the material selection stage, as afterwards remediation is costly and ineffective.
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!