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

了解渗透剂与木材之间的关系，是实现浸水木材合理稳定保存的重要途径。首先，我们选择试剂，并通过测量试剂吸附在样品上的量来评估试剂对浸水木材的亲和力。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外，聚乙二醇（PEG）也被吸附。然后我们调节溶液的浓度速率来研究导致吸附的原因，并测量样品上吸附试剂的量。在使用来自同一树种和同一劣化等级的木材样品的情况下，该量不随浓度速率变化。但在使用来自同一物种但不同退化程度的样本的情况下，数量随着条件的恶化而增加。接下来，我们研究了PEG与这些吸附样品的行为。因为聚乙二醇是一种经常用于保护的材料。结果表明，在吸附剂的存在下，聚乙二醇的渗透更加平滑。最后，我们证实了用吸附试剂使样品饱和的时间与溶液的浓度速率成正比。我们还证实了未被吸附到样品上的试剂的渗透，并发现平衡的数量和时间也与木材的种类和劣化等级有关，但与试剂本身无关。在此基础上，研究了木材分析、红外光谱分析与吸附量的关系。因此，认识到变质条件与吸附量之间的相关性。但是普通的关系是无法被引导的。

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.