等离子技术在近现代纸质文物脱酸保护中的应用研究  

Application of plasma technology in deacidification of modern and contemporary paper relics

作　　者：李青莲[1] 贺宇红[2] 李贤慧[2] 马灯翠[2] 王金玉[2] 奚三彩[3] 张溪文[1,3] 

机构地区：[1]浙江大学材料科学与工程学系,浙江杭州310027 [2]天一阁博物馆,浙江宁波315000 [3]浙江大学文化遗产研究院,浙江杭州310027

出　　处：《文物保护与考古科学》2014年第1期76-80,共5页Sciences of Conservation and Archaeology

基　　金：浙江省文物局2011年度文物保护科技项目资助(No.20110105)

摘　　要：如何在无损纸张性能的前提下实现对纸质文物的快速脱酸，是近现代纸质文物脱酸研究的重点之一。为此，本工作使用等离子技术在常温常压条件下对近现代纸质文物进行脱酸处理，该方法可以有效对纸张进行脱酸，且克服了传统溶液浸泡脱酸法带来的纸张皱褶、粘连、褪色等问题。针对等离子体能量密度、处理时间及次数等因素对纸张脱酸效果以及纵向抗张强度的影响进行了一系列的研究。结果表明，使用能量密度为4．5-5．5MJ／m3的等离子对酸化纸张进行脱酸（处理2次，每次5分钟）后，其pH值从5．0-6．0提高到7．0-8．0；纸张的色度无明显变化；处理后纸张的纵向抗张强度增加10％，且老化后的抗张强度仍可达到初始值的95％左右。可以认为，等离子脱酸技术应用于各种年代及不同保存条件下的机制纸，均能达到较好的脱酸效果，是一种可以广泛应用的脱酸方法。One of the urgent research topics for preservation of modern and contemporary paper relics is the rapid and economical deacidification of papers without damaging textural qualities such as tensile and folding properties. In this paper, plasma technology was used to effectively reduce the acidity of paper at room temperature and atmos- pheric pressure, so as to avoid crinkling and the alteration of seen using traditional wet methods. Positive deacidification results were achieved by adjusting treatment parameters, such as energy density, processing times, etc. The pH value of the paper samples rose from 5.0 - 6.0 to above 7.0 - 8.0 after deacidification for 5 minutes. The texture of the paper texture remained stable, with no chromatic aberrations, and there was a small increase in the tensile strength that remained at over 95 % after artificial aging treatments. It can be concluded that the plasma deacidification technique can be applied to machine - made paper of various ages and condition of preservation. The method can be widely used as a deacidification method.

关 键 词：等离子体 近现代 纸质文物 脱酸 

分 类 号：G255.1[文化科学—图书馆学]