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

正确认识渗透剂与木材的关系，对于合理、稳定地保存受涝木材是非常重要的。首先，我们选择了渗透剂，并通过测定试剂在样品上的吸附量来评价它们对受涝木材的亲和力。在水中，阳离子表面活性剂和非离子表面活性剂都被吸附，在乙醇中也被吸附，聚乙二醇也被吸附，然后我们调节溶液的浓缩速率来考察吸附的原因，并测量了样品上吸附的试剂的量。在使用来自相同树种和相同等级的木材退化的样品的情况下，数量不随浓缩率而改变。但在使用相同物种但不同变质程度的样品的情况下，随着条件的恶化，数量会增加。接下来，我们研究了聚乙二醇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，在有吸附剂存在的情况下，聚乙二醇的渗透更加平稳。最后，我们确定了吸附试剂浸泡样品的时间与溶液的浓缩率成正比。我们还确认了未被吸附到样品上的试剂的渗透性，发现达到平衡的量和时间也与木材的种类和变质程度有关，而与试剂本身无关。根据这些结果，研究了木材分析、红外光谱分析与吸附量之间的关系。因此，劣化条件与被吸附的量之间存在相关性。但共同关系不能统领。

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.