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THE FUNDAMENTAL RESEARCHES FOR CONSERVATION OF WATERLOGGED WOODS-DEPENDING ON CHEMICAL ADSORPTION OF REAGENTS-

浸水木材保护的基础研究——基于试剂的化学吸附——

基本信息

批准号：
07831016
负责人：
UEDA Naomi
金额：
$ 1.41万
依托单位：
Gangouji Institute for Research of Cultural
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

项目摘要

It is important that we should realize the relation between penetrating reagent and wood for suitable and stable conservation of waterlogged wood.First, we selected reagents and evaluated the affinity of them to waterlogged wood by measuring the amount of reagent adsorbed onto the samples. In the water, both cationic surfactants and nonionic surfactants were adsorbed and in the ethanol in addition to them, and polyethylene glycol (PEG) were also adsorbed.Then we regulated the concentration rate of the solurion to investigate what would cause the adsorption and measured the amount of adsorbed reagents on the samples. In case of using samples from the same species and the same grade of deterioration of wood, the amount did not change by the concentration rate. But in the case of using samples from the same species but various grades of deterioration, the amount increased as the condition was worse.Next, we examined how PEG would behave with these adsorbed samples. Because PEG is a material often used for conservation. As the result the penetration of PEG was smoother in the presence of adsorbent reagent.Finally we confirmed that the time for saturating the sample with adsorbent reagent is proportionate to the concentrate to the concentration rate of the solution. We confirm also the penetration of reagents that had not been adsorbed onto the samples and found that the amount and the time for equilibrium are also concerned with the species and the grade of deterioration of wood, but not with the reagent itself.From these results, relationship among wood analysis, infrared spectrum analysis and the amount adsorbed was investigation. Consequently correlation was recognized between condition of deterioration and the amount adsorbed. But common relationship can not be led.

为了实现木材的适度、稳定保存，必须了解渗透剂与木材的关系。首先，通过测定渗透剂在不同木材上的吸附量，评价了渗透剂与木材的亲和性。在水中，阳离子表面活性剂和非离子表面活性剂均被吸附，在乙醇中，除阳离子表面活性剂和非离子表面活性剂外，聚乙二醇（PEG）也被吸附，通过调节溶液的浓度来研究引起吸附的原因，并测定样品上的吸附量。在使用来自相同物种和相同等级的木材劣化的样品的情况下，该量不随浓缩率而变化。但是，在使用相同种类但变质程度不同的样品的情况下，随着条件变差，PEG的量也会增加。接下来，我们研究了PEG对这些吸附样品的作用。因为PEG是一种经常用于养护的材料。实验结果表明，在吸附剂存在下，PEG的渗透更加顺畅。最后，我们证实了吸附剂饱和样品的时间与溶液的浓缩率成正比。还证实了未吸附到木材上的试剂的渗透性，发现吸附量和平衡时间与木材的种类和劣化程度有关，而与试剂本身无关，并由此探讨了木材分析、红外光谱分析与吸附量之间的关系。因此，相关性之间的劣化条件和吸附量的认可。但普通的关系是无法被引导的。