纸质文物辐照消毒研究进展

纸张是人类历史文化信息的重要载体,纸质文物的妥善保存是文明延续的一部分。纸制品在使用及存储期间,除发生自然老化外,还受到以真菌为主的微生物损害,因此纸张消毒处理是保护过程中的重要步骤。本文总结了微生物对纸制品的危害以及常用的化学和物理消毒方法,重点介绍了电离辐射对纸制品消毒的成效,并分析了辐照对纸张机械性能、颜色和聚合度等方面的影响。     

壁画酥碱病害研究概述

酥碱病害是壁画最为严重的病害之一,被称为壁画的“癌症”。因其受诸多因素的影响,使得病害产生机理复杂、修复材料匮乏和修复方法难度大等问题,严重制约着酥碱病害的修复与防治。本文系统梳理酥碱病害的成因、病害机理、加固材料、地仗修补材料,以及针对不同盐霜的保护修复方法的研究成果,客观评价酥碱壁画修复过程中的经验和教训,为古代壁画酥碱病害的防治与修复提供系统的技术参考和实践借鉴。     

制备方法对土遗址重塑样稳定性的影响研究

土建筑遗址本体的保护受遗址土的物理、水理、力学及所处环境差异的影响，重塑样是替代土遗址测试其各种性质的重要手段，重塑样拌制土性质的稳定性是科学评价、对比分析试验研究的基础和前提。本研究基于不同拌制土的方法，通过观察、拍照、量取土团粒大小以及同条件制备样品的无侧限抗压强度等，综合评价不同拌制土方法的影响条件。研究发现，采用人工拌土、闷土时间在24 h的土所制的试样最具稳定性，随着闷土时间再增加，土样强度在逐渐降低。本研究为土建筑遗址室内试验研究和工程现场拌制土料提供理论参考和技术支撑。     

不同加热温度豆浆水在宣纸中的应用效果研究

为了对比不同加热温度豆浆水在宣纸中的应用效果,分别制备25℃生豆浆水,50℃、80℃半熟豆浆水,95℃的熟豆浆水涂刷于宣纸表面,考察豆浆水处理宣纸前后的pH值、抗墨滴晕散性能,老化前后的色差、耐折度及抗张强度变化,对比生熟豆浆水及胶矾水对绘画常用国画颜料朱膘、花青、藤黄等的呈色效果,并用扫描电镜(SEM)与衰减全反射红外光谱(ATR-FTIR)研究豆浆水与纤维结合的微观形貌及化学键合情况。结果表明,不同浓度的生熟豆浆水处理宣纸后,pH值均呈现弱碱性。样品抗墨滴晕散性能由大到小排序依次为:80℃半熟豆浆水95℃熟豆浆水50℃半熟豆浆水25℃生豆浆水。在热老化中胶矾水及豆浆水样品均逐渐泛黄,胶矾水的泛黄程度大于豆浆水。经过加热的豆浆水处理宣纸的耐折度、抗张强度均好于生豆浆水。豆浆水施胶后,不仅包覆了纤维,在纤维之间还产生交联,促进了两者之间的结合;ATR-FTIR表明随着温度增加,油脂从大豆中分离,多糖分解转化为小分子糖类。豆浆水的大豆蛋白可与纸纤维形成氢键,从而提高了纸张的抗水性。可见,豆浆水在书画修复中的应用具有深刻的科学内涵。     

馆藏文物预防性保护风险管理的实践与思考——以上海博物馆为例

馆藏文物预防性保护工作在我国经过了二十余年的系统性研究和应用实践,已经取得了重大进步。近年来,上海博物馆在预防性保护工作中引入风险管理理念,通过明确环境信息、风险评估、风险应对和监督检查的流程,降低文物风险,保障文物安全。本文以上海博物馆的两个临时展览为例,从环境信息统计分析、湿度阈值设定与调控策略选择、材料环境安全性评估、展柜密封性能要求等方面阐述了馆藏文物预防性保护风险管理工作的应用实践和研究思考。     

湖南何家皂北宋墓出土纺织品附着灰蓝色物质的科学分析

出土于湖南衡阳何家皂北宋墓的纺织品上观察发现有灰蓝色固体物质附着,为查明其性质,采用扫描电镜-能谱法、激光拉曼光谱法和X射线衍射法结合能量色散X射线荧光光谱法和光学形貌观察等手段进行科学分析。结果表明,该物质为磷酸亚铁矿物——蓝铁矿[Vivianite:Fe_(3)(PO_(4))_(2)·8H_(2)O],其多形成于富铁、富磷、有机物含量较高且贫硫的缺氧还原沉积环境中,微生物活动亦对其生成有影响。该矿物的发现对墓葬环境特征与保存状态的研究有指示意义,在考古遗存中或可作为判断特殊埋藏条件的标志自生矿物之一。     

气味景观感知对乡村地方依恋的影响机制研究——兼论怀旧的中介作用

气味的作用是潜移默化的，本文在乡村旅游情境下，运用结构方程研究了气味景观感知对于地方依恋的影响作用。研究发现：①乡村气味景观感知显著地正向影响旅游者地方依恋；②乡村气味景观感知对于怀旧有显著的正向影响；③历史怀旧对地方依赖有显著正向影响，个人怀旧对于地方依赖和地方认同均有显著正向影响；④怀旧在气味景观感知和地方依恋之间的中介效应得到验证。研究证实了气味景观的重要作用，明晰了怀旧在乡村旅游体验中的核心地位，对丰富旅游体验和打造乡村旅游景观具有一定的启示意义。     

河南荥阳官庄遗址陶范物源及制作工艺分析

Guanzhuang site is located in the west of Guanzhuang Village, Gaocun Township, Xingyang City, Henan Province. From the site, more than 3 000 pottery moulds have been unearthed, with various types, including the moulds for containers, tools, chariots, weapons, money and core, etc. According to the types and decorations of pottery moulds and the characteristics of co - existing pottery, the pottery moulds of Guanzhuang site can be divided into two periods—Phase I dating from the late Western Zhou Dynasty to the early Spring and Autumn Period, and phase TJ considered between the early and middle Spring and Autumn Period. The change of bronze ware styles from the Western Zhou Dynasty to the Spring and Autumn Period was important in the development of ancient Chinese bronze wares. Due to the lack of archaeological data, research on pottery moulds during the two - week period was still insufficient; discussion of the important issue of standardizing the sources of raw materials was also relatively weak. Environmental archaeology has relatively mature methods and practices in depositional dynamics, depositional processes and provenance tracing, which could provide new ideas for further in - depth discussions on this issue. In order to understand the material sources and craftsmanship of pottery moulds unearthed from Guanzhuang site in Xingyang, Henan Province, samples of Guanzhuang pottery moulds and natural sedimentary strata were studied using particle size analysis, XRF and petrographic analysis to give the following results. 1) The raw materials for mould - making were taken from the late Pleistocene Malan loess layer under the cultural layer of the site. The Malan loess underwent simple manual elutriation before being used to make pottery moulds. 2) A small amount of plant ash and calcium nodule powder was added during the production process of pottery moulds as an admixture to increase the high - temperature resistance. 3) The inner side of pottery mould for container was mainly made of Malan loess, while the outer one was made of a mixture of Malan loess and river sand with a blending ratio of about 7:5. Pottery moulds for various ware types had different processing techniques (e.g., moulds for containers were more refined). Besides, compared with early pottery moulds, later ones are relatively rougher, but the difference is not obvious. 4) The petrographic characteristics of double - layer container moulds indicate that there are different production processes for the inner and outer sides of mould. The inner side was made of Malan loess with finer particles—below 100 μm—as the raw material after elutriation, and there were traces of directional trimming. The outer one was made of a mixture of two parts of minerals (coarse and fine), and there was no obvious processing trace. Analysis of sample particle size is a new attempt to discuss the material sources of pottery moulds. The related discussion of mud - clarifying ponds is also helpful to understand the function of such relics and the formation process of accumulation in them. This study has important reference significance for exploring the material and craft characteristics of pottery moulds before and after the early Spring and Autumn Period in the Central Plains. © 2023, Sciences of Conservation and Archaeology. All Rights Reserved.