摘要
研究棉纤维和苎麻纤维的三级红外光谱。采用傅立叶变换衰减全反射红外光谱技术,测试了棉纤维和苎麻纤维的一维红外光谱、二阶导数红外光谱和同步二维红外光谱。试验发现:棉纤维和苎麻纤维同时存在着—CH2不对称伸缩振动模式,—CH2对称伸缩振动模式,—OH变形振动模式和C—O伸缩振动模式等4种红外吸收模式。认为:在3 000cm-1~2 800cm-1、1 450cm-1~1 400cm-1、1 350cm-1~1 300cm-1和1 100cm-1~1 000cm-1频率区间内,采用传统的红外光谱技术(一维红外光谱和二阶导数红外光谱)不能有效区分棉纤维和苎麻纤维,而同步二维红外光谱可以清晰的区分棉纤维和苎麻纤维。
Third-step infrared spectroscopy study on cotton fiber and ramie fiber was studied. Fourier trans format tenuated total reflection infrared spectroscopy was adopled. The one dimensional infrared spectroscopy, secondary derivative infrared spectroscopy and synchronized two-dimensional infrared spectroscopy of cotton fiber and ramie fiber were tested, h was found during experiments that four kinds of infrared absorption modes inch〉 ding CH2 asymmetric stretching vibration mode, -CH2 symmetric stretching vibration mode, OH deforma lion vibration mode and CO stretching vibration were exisled in both cotton fiber and ramie fiber. It is consid- ered that co＇,ton fiber and ramie fiber can nm be distinguished effectively by traditional infrared spectroscopy in frequency of 3 000 cm-1-2 800 cm-1,1450 cm-1-1 400 cm-1,1 3,50cm-1-1 300 cm-1 and 1 100 cm-1- 1 000 cm-1. However,cotton fiber and ramie fiber can be distinguished clearly by synchronized two-dimensional infrared spectroscopy.
作者
于宏伟
牟微
刘彦飞
张鑫艺
赵雷
YU Hongwei MOU Wei LIU Yan fei ZHANG Xin yi ZHAO Lei(Shijiazhuang Uniw, rsity, Hebei Shijiazhtmng, 05003)
出处
《棉纺织技术》
CAS
北大核心
2017年第2期7-11,共5页
Cotton Textile Technology
基金
河北省科技厅科学技术研究与发展计划(12222802)
石家庄市科学技术研究与发展计划课题(151500182A)
关键词
棉
苎麻
官能团
三级红外光谱
吸收峰
Cotton, Ramie, Functional Group, Third-step Infrared Spectroscopy, Absorption Peak
