纺织科学与工程学报2024，Vol.41Issue(3)：91-100,109,11.DOI:10.3969/j.issn.2096-5184.2024.03.015
乙基纤维素结构中红外-近红外光谱组学研究
Research on Middle Infrared-near Infrared Spectroscopy of Ethyl Cellulose Structure
摘要
Abstract
Ethyl cellulose structure of products with different viscosity models from different manufacturers was studied by mid infrared(MIR)and near-infrared(NIR)spectroscopy techniques.The experiment found that the MIR-NIR spectral absorption modes of ethyl cellulose mainly included O-H group stretching vibration mode(νO-H-ethyl cellulose-MIR),CH3 group asymmetric stretching vibration mode(νas CH3-ethyl cellulose-MIR),CH3 group symmetrical stretching vibration mode(νs CH3-ethyl cellulose-MIR),CH2 group asymmetric stretching vibration mode(νas CH2-ethyl cellulose-MIR),C-H group stretching vibration mode(νC-H-ethyl cellulose-MIR),CH3 group symmetrical bending vibration mode(δsCH3-ethylcellulose-MIR),C-O group stretching vibration mode(νC-O-ethylcellulose-MIR),OC2H3 group vibration mode(νOC2H3-ethyl cellulose-MIR),frequency combination of νC-H-ethyl cellulose-MIR and νs CH-ethyl cellulose-MIR(ν-1-ethylcellulose-NIR),frequency combination of νas CH3-ethyl cellulose-MIR and νas CH2-ethyl cellulose-MIR(ν-2-ethyl cellulose-NIR),first level frequency doubling of νO-H-ethyl cellulose-MIR(ν-3-ethyl cellulose-NIR)and second level frequency doubling of νO-H-ethyl cellulose-MIR(ν-4-ethylcellulose-NIR).Research found that there were certain differences in the infrared absorption frequency and relative contents of OC2H3 group corresponding to the main functional groups of ethyl cellulose pro-duced by different manufacturers with different viscosity models.MIR-NIR spectroscopy group research has con-ducted important structural research on textile raw materials(ethyl cellulose)and has significant application re-search value.关键词
中红外光谱/近红外光谱/乙基纤维素/结构Key words
mid-infrared spectroscopy/near infrared spectroscopy/ethyl cellulose/structure分类
轻工纺织引用本文复制引用
杜林楠,杨珊珊,孔晓美,王春润,田晨阳,柴嘉欣,吉一帆,于宏伟..乙基纤维素结构中红外-近红外光谱组学研究[J].纺织科学与工程学报,2024,41(3):91-100,109,11.基金项目
石家庄市麻醉药技术创新中心项目(石科[2019]34号),河北省生物制药国际联合中心项目(冀科外函[2022]3号). （石科[2019]34号）
