文献类型：期刊文献

中文题名：热裂解气质联用鉴别PA56、PA66和PA6

英文题名：Identification of PA56,PA66 and PA6 Through Pyrolysis Gas Chromatography?mass Spectrometry

作者：胡慧廉[1];施嘉亮[1];郎蕾[1];施超欧[1];姚建磊[1]

机构：[1]华东理工大学化学与分子工程学院分析测试中心,上海200237

年份：2021

卷号：35

期号：11

起止页码：120

中文期刊名：中国塑料

外文期刊名：China Plastics

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

语种：中文

中文关键词：热裂解?气相色谱/质谱;聚酰胺56;聚酰胺66;聚酰胺6;鉴别

外文关键词：pyrolysis?gas chromatograph?mass spectrometry;polyamide 56;polyamide 66;polyamide 6;identification

摘要：采用热裂解气质联用(Py?GC/MS)方法鉴别聚酰胺56(PA56)、聚酰胺66(PA66)和聚酰胺6(PA6)及其共混物。结果表明,在550℃裂解温度下,PA56与PA66相对丰度100%的峰为环戊酮,分别具有特征裂解产物1,8?二氮杂环十三烷?2,7?二酮和1,8?二氮杂环十四烷?2,7?二酮,PA6相对丰度100%的峰为己内酰胺;此方法可用于快速鉴别PA56、PA66和PA6的工业初级品,并成功检出了PA6/PA56共混物、PA6/PA66改性共混物与改性PA66。
Pyrolysis gas chromatography?mass spectrometry(Py?GC/MS)was conducted to identify polyamide 56,poly?amide 66,polyamide 6 and their blends.The 100%relative abundances of polyamide 56 and polyamide 66 were cyclo?pentanone at a pyrolysis temperature of 550℃,which were differentiated with the characteristic pyrolytic products of 1,8?diazabicyclotridecane?2,7?dione and 1,8?diazabicyclotetradecane?2,7?dione.Meanwhile,polyamide 6 obtained 100%relative strength of caprolactam.This made it possible to quickly identify industrial primary products of polyamide 56,polyamide 66 and polyamide 6.With this method,polyamide 6/56 blends,modified polyamide 6/66 blends and modi?fied polyamide 66 can be detected successfully.