PTA光学性质探讨  

Study on PTA optical properties

作　　者：鲁锦富[1] 

机构地区：[1]仪征化纤股份有限公司化工厂,江苏仪征211900

出　　处：《聚酯工业》2004年第3期1-2,17,共3页Polyester Industry

摘　　要：探讨如何表示PTA光学性质。指出 ,在表述PTA颜色时 ,仅给出L值、a值、b值是不够的 ;还应该指出所用的光源、照射和观测条件 ,不同测定原理的仪器得出的测定结果没有可比性。PTA中的金属离子如铁、铬含量较高时 ,也影响其光学性质。How to express the optical properties of PTA was discussed.It is pointed out that when expressing the PTA color,only giving the L,a and b value is not enough.The used light source,the irradiation and observation conditions sbould also be given.The determination results of the instruments with different determination principle have no comparability.When the metal ion such as iron and chromium content in PTA is high,the optical properties of PTA can also be infuenced.

关 键 词：PTA 对苯二甲酸 光学性质 乙二醇 EG 4-羧基苯甲醛 测定方法 

分 类 号：TQ245.12[化学工程—有机化工]