传统氧化去污材料对纸张纤维纤维素聚合度的影响

纤维素聚合度的大小反映了纸张老化变质降解的程度。实验采用4种氧化去污材料分别处理纸张后，再进行干热老化，测定处理前后纸张纤维的纤维素聚合度。实验表明，各氧化去污材料处理纸张后，纸张纤维的纤维素聚合度均下降，其中KMnO4-H2C2O4处理的纸张，聚合度下降最多，说明氧化去污法对纸张有较大的破坏作用，在去除纸质文物上的污斑时，应该慎重选用。

Effect of Oxidative Decontamination Techniques on Cellulose Polymerization Degree

Average polymerization degree of cellulose reflects the average length of the cellulose chains, polymerization degree is higher, the cellulose molecule chain is longer, and the paper is more durable. In contrast, polymerization degree is lower, the cellulose molecule chain is shorter, and the paper is less durable. Therefore, the polymerization degree of paper can reflect the level of paper degradation. The papers were individually treated by four kinds of oxidation decontamination material, and were aged by dry heat means, then the papers were characterized by means of measuring the polymerization degree of the papers. The results showed that polymerization degrees of the papers was decreased, the paper treated by KMnO4-H2C2O4 in particular, its polymerization degree decreased the most, it indicated that oxidative decontaminations had the large destructive action on paper relics. Therefore, oxidative decontamination would be cautionly used in the cleaning the stains of paper relics.