Abstract:In order to explore the storage life of paper, we carried out dry-heat accelerated aging experiments on bamboo paper, Xuan paper, newsprint, bible paper and mulberry paper, and evaluated their main physical and chemical indicators (yellowing value, tensile index, tearing index, folding endurance index, degree of polymerization, copper number and cold extraction pH value) before and after aging. Subsequently, the physical and chemical indicators of aging were studied by Pearson rank correlation coefficient, whereby the storage life of paper could be predicted. The results show that tensile index, copper number and degree of polymerization of all these five kinds of paper correlate well with aging time. In terms of yellowing value, pH value and tearing index, some but not all kinds of paper show very good correlations (correlation coefficient above 0.9). However, a good correlation between folding endurance index and aging time was seen for only one kind of paper. Therefore, we believe that tensile index, degree of polymerization and copper number are favorable indicators for predicting the storage life of most papers.