[Study on analysis of copy paper by Fourier transform infrared spectroscopy].
A new method of fast identification of copy papers by Fourier transform infrared spectroscopy (FTIR) was developed. The kinds of filler and the cellulosic degree of crystallinity were analyzed by FTIR, and the ageing curves of cellulosic paper were studied with heating and ultraviolet light. The cellulosic degree of crystallinity was showed by the ratio of absorbance at 1 429 cm(-1) to that at 893 cm(-1), the standard deviation of different brands of copy papers was 0.010 7-0.016 0, and the standard deviation of the same brands of copy papers was 0.014 8. The kinds of filler and the cellulosic degree of crystallinity were different in copy papers from different brands of different manufacturing plants, different brands of same manufacturing plants and different manufacturing times of the same brands from the same manufacturing plants, and the curves of ageing were different with heating and ultraviolet light. The results of fast identification of copy papers by FTIR are satisfactory.
Li
Ji-Min
JM
Faculty of Chemistry, Northeast Normal University, Changchun 130024, China. lilijimin@sina.com
Wang
Yan-Ji
YJ
Wang
Jing-Han
JH
Yao
Li-Juan
LJ
Zhang
Biao
B
D002482:Cellulose / Q000032:analysis / Q000737:chemistry; D003308:Copying Processes; D003890:Desiccation; D006358:Hot Temperature; D007287:Inorganic Chemicals / Q000032:analysis / Q000737:chemistry; D010209:Paper; D011786:Quality Control; D017550:Spectroscopy, Fourier Transform Infrared; D013997:Time Factors
D007287:Inorganic Chemicals; D002482:Cellulose