Study on Synergistic Improvement of UV Aging Resistance of GPPS Resin by Hindered Amine Light Stabilizers and UV Absorbers
The synergistic effects of two UV absorbers(UV-A,UV-B)and hindered amine light stabilizers(HALS)on UV aging resistance of general purpose polystyrene(GPPS)resin were studied using a yellowing index meter,laser scanning confocal microscope(CLSM)and transmittance haze analyzer.The results show that the addition of HALS,UV-A,UV-B can effectively inhibit the degradation of GPPS resin due to UV aging.Under UV light conditions,UV absorbers(UV-A,UV-B)have a better effect on improving the anti UV aging performance of the sample than HALS,with UV-A being the optimal.When HALS is combined with two types of UV absorbers(UV-A,UV-B),they all present a good synergistic effect in resisting UV aging.
general purpose polystyrene resinhindered amine light stabilizerUV agingyellow index
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维普
