•  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
期刊检索


检索
检索项:
检索词:
总目录
  • WCSB9︱2019(第九届)世界采样和混样大会 查看全文>>
  • 关于召开第十五届全国青年分析测试学术报告会的通知 查看全文>>
友情链接
基于傅里叶变换红外光谱和气相色谱-质谱的未知涂料成分分析
    点此下载全文
作者单位
杨青华,林勤保,关伟焰,马洪生,魏晓芬,王玥 1. 暨南大学包装工程研究所广东 珠海 519070 2. 珠海红塔仁恒包装股份有限公司广东 珠海 519070 
基金项目:珠海进出口公共技术服务平台产学研协同创新计划(IETP201901012)
中文摘要:采用傅里叶变换红外光谱法(FT-IR)和气相色谱-质谱法(GC-MS)定性分析了未知涂料的主要化学组成。将涂料恒温烘干成膜,剪裁成条状和碎片状,经乙腈、甲醇超声提取,四氢呋喃溶解后,分别取条状涂膜及其四氢呋喃不溶物进行FT-IR分析,结合吸收峰特征、谱库检索定性。结果表明,涂料成膜物质主要是丙烯酸酯。将涂料样品及其乙腈和甲醇提取液,分别进行GC-MS分析并结合保留指数、谱库及文献筛查定性。结果表明,涂料溶剂由2-乙基己醇、邻二甲苯、间二甲苯、苯乙酮等组成;可能的助剂成分主要包括1-甲基萘、棕榈酸甲酯、α-甲基苯乙烯、2,4-二叔丁基苯酚、2,4-二甲基-6-叔丁基苯酚、油酸酰胺等;甲基丙烯酸正丁酯、丙烯酸异辛酯是未知涂料中的聚合单体。
中文关键词:涂料  成分分析  傅里叶变换红外光谱  气相色谱-质谱法  丙烯酸酯
 
Analysis of Components in Unknown Coating by Fourier Transform Infrared Spectroscopy and Gas Chromatography-Mass Spectrometry
Abstract:A method of Fourier transform infrared spectroscopy(FT-IR) coupled with gas chromatography-mass spectrometry(GC-MS) was applied to the qualitative analysis of key chemical components in unknown coating.The components extraction methods and solvents were optimized,and the optimal pretreatment conditions were determined.The coating was dried into film at a constant temperature,then the coating film was cut into stripes and fragments,respectively.After the pieces were extracted with acetonitrile and methanol successively,they were centrifuged at a high speed,and dissolved in tetrahydrofuran.In addition,the stripes and the insoluble matters were analyzed by FT-IR after dissolving.Furthermore,combined with absorption peaks and spectral libraries as well as software,all unknown components were determined.According to the results obtained,the coating film-forming substance was judged to be acrylate to a great extent.Meanwhile,coatings,acetonitrile extracts and methanol extracts were analyzed by GC-MS.Retention index,spectral libraries and literatures were used for the qualitative analysis.Results showed that the solvents in the coating mainly consisted of 2-ethylhexanol,o-xylene,m-xylene,acetophenone,giving coating special odors.What’s more,additives possibly included 1-methylnaphthalene,methyl palmitate,α-methyl styrene,2,4-di-tert-butylphenol,2,4-dimethyl-6-tert-butylphenol and oleamide,etc.The polymerization monomers in the unknown coating were butyl methacrylate and isooctyl acrylate.
Key Words:coating  component analysis  Fourier transform infrared spectroscopy(FT-IR)  gas chromatography-mass spectrometry(GC-MS)  acrylate
引用本文:杨青华,林勤保,关伟焰,马洪生,魏晓芬,王玥.基于傅里叶变换红外光谱和气相色谱-质谱的未知涂料成分分析[J].分析测试学报,2021,40(11):1571-1579.
摘要点击次数: 112
全文下载次数: 165
查看全文  下载PDF阅读器