Study on Improving Aging Resistance Properties of Polyurethane
HUANG Wan-li(Anhui Anli Artificial Leather Co.Ltd.,Hefei 230601,China)
In this paper,the degradation and stabilization mechanism of polyurethane exposed to light and thermo was introduced.The influences of antioxidant 245,1010,B225 and ultraviolet absorbent UV-235,UV-328,SUV on improving light and thermo aging resistance properties of PU material was investigated.The results indicated that using antioxidant B225 and ultraviolet absorbent SUV together have the best effect on maintaining mechanical properties and aging resistance properties of polyurethane.
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