阳离子染料可染PET管道中结焦物的研究(一)——结焦物红外光谱分析及溶解性能

Study on the coke formed in the CDP melt pipe——IR spectra analysis and solubility of the coke

生产阳离子染料可染PET的管道中某些部位容易形成结焦物从而造成堵塞,影响使用寿命。本文采用FT-IR分析手段和溶剂法对结焦物的结构进行了剖析。轻度炭化的结焦物具备PET的部分特性,强酸类溶剂表现出较好的溶解效果,对结焦物的清洗具有一定的作用。

The coke formed in the CDP melt blocks the pipe, leading to the reduce of the service life. In this paper, the structure of the coke was analyzed and identified by FT-IR and solvent methods. The slight carbonized cork has some characteristics of PET and shows good dissolution results in strong acids solvent. The strong acids solvent has certain effect on coke cleaning.