不同浓度硫酸对纸张老化性能影响的初步研究
A Preliminary Study on the Effect of Different Concentrations of Sulfuric Acid on the Aging Properties of Paper
黄四平 1陈有路 2杜德新 3郭苗苗 3王鑫怡 3贾茜 3乔佳萌 4杜新宇4
作者信息
- 1. 咸阳师范学院,陕西咸阳 712000;广州市岭南文献保护研究中心(华南理工大学),广东广州 510640
- 2. 咸阳博物院,陕西咸阳 712000;广州市岭南文献保护研究中心(华南理工大学),广东广州 510640
- 3. 含光门遗址博物馆,陕西西安 710000
- 4. 咸阳师范学院,陕西咸阳 712000
- 折叠
摘要
纸质文献信息书写所用的蓝黑墨水等均含有硫酸等酸性物质,这些酸性物质是造成纸张老化的重要因素之一.研究采用2％、4％、6％、8％、10％硫酸对宣纸、毛边纸、报纸三种纸张进行浸泡10天,分别测试纸张的色差、抗拉强度和纤维的显微结构变化.结果表明,随硫酸浓度增高,三种纸张的明暗L值都变小,纸张的颜色在慢慢变暗,黄绿值a值逐渐增大,颜色泛黄,总色差△E增大,颜色变化明显;最大抗拉强度下降,强度降低.显微结构表明纸张纤维在硫酸作用下发生断裂、变短,纸张老化、劣化,硫酸浓度越高,纤维断裂越短,导致纸质文献的文物价值和文献价值的损毁.
Abstract
Acidic substances such as sulfuric acid,which is contained in writing materials,is one of the important factors causing paper aging.Xuan paper,edging paper and newspaper were soaked in 2％,4％,6％,8％and 10％sulfuric acid for 10 days in this study.The properties of the color difference,tensile strength and micro structure of fibers were tested respectively.The results showed that the L value which expresses light-shade of the three kinds of paper decreased,with the increase of sulfuric acid concentration,the color of the paper gradually darkened.Simultaneously,the a value which indicates yellow-green gradually increased,the color became more yellow.The total color difference △E increased,the color change was obvious.The maximum tensile strength also decreased with the increase of sulfuric acid concentration.The paper fiber was broken and shortened under the action of sulfuric acid,the higher the concentration of sulfuric acid was,the shorter the fiber was broken.The aging and deterioration of papers in acidic environment has induced the destruction of the cultural heritage value and literature value.
关键词
纸质文献/硫酸老化/老化性能Key words
paper literature/sulfuric acid aging/aging properties引用本文复制引用
基金项目
广州市岭南文献保护研究中心开放基金资助项目(202102)
2023年陕西省大学生创新创业训练计划项目(S202310722043)
出版年
2024
国家科技期刊平台
NSTL
万方数据