yellowness index

基本解释

The effects of some hindered amine light stabilizers(HALS) and antioxidants on the radiation-induced coloration of polyethylene(PE) are studied by measuring the yellowness index(YI) of PE.
研究了受阻胺类光稳定剂（HALS）及各种抗氧剂对聚乙烯辐射致色的影响。
The relation between yellowness index and time of irradiation is a power function. After irradiation, the most decreased amino acids are corresponding to tryptophan, histidine and tyrosine.
结果表明，泛黄真丝绸的黄度指数与氙灯照射时间之间是乘幂函数关系，泛黄真丝绸中的色氨酸、组氨酸及酪氨酸的损失百分率最大。