Preliminary Study on Deterioration Evaluation of Sized Xuan Paper Based on Pyrolysis Gas Chromatography-Mass Spectrometry
In this study,to explore a new method to evaluate the deterioration degree of sized Xuan paper,sized and unsized Xuan paper are subjected to simulated accelerated aging environment.The aging samples are characterized by mechanical properties,pH value,and pyrolysis products.The results show that the tensile index,folding endurance,pH value,and pyrolysis products of sized samples are significant differences than those of unsized samples.Pyrolysis gas chromatography-mass spectrometry has the following advantages:(1)small amounts of samples needed;(2)no pretreatment of samples needed;(3)effectively evaluate the deterioration degree of sized Xuan paper with different aging environment and methods.In addition,the yields of Levoglucosenone can be used as an internal indicator of acidification and deterioration of paper due to its changes significantly with aging time.Humidity factor is a significant environmental factor affecting the yields of Levoglucosenone,that is,the deterioration of sized Xuan paper.
sized Xuan paperalumdeteriorationpyrolysis gas chromatography-mass spectrometry
万方数据
维普
