{"title":"Effect of Different Synthetic Resins on Soil Nano- and Microstructure","authors":"R. E. Musaelyan, K. N. Abrosimov, K. A. Romanenko","doi":"10.1134/s1064229324600167","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\n<b>Abstract</b>—</h3><p>The use of synthetic and natural resins in the fixation of organomineral matter for further studies is common, e.g. in the micromorphological study of soils, since the procedure of making thin sections includes the impregnation of the sample with the filling materials (resins). At the same time, their effect on the soil structure remains poorly known. In this article, an experiment to study the impact of synthetic and natural resins on the nano- and microstructure of soil during impregnation is considered. First data on the characteristics of resins frequently used in laboratories, as well as on their effects on the structure of soil samples have been obtained with small-angle X-ray scattering and computed tomography techniques. The X-ray transparency of fixing materials was detected. Subsequent impregnation of the AU horizon fraction from Haplic Chernozems of Kursk oblast by fixing materials allowed establishing their influence on the change in size of soil nanostructural heterogeneities. The experiment with different horizons of Protosalic Solonetz attests to a decrease in the size of nanoheterogeneities with depth in the impregnated soil as compared with that in the native soil. At the microlevel, a decrease in microporosity within the first percent after polymerization of the fixing material has been proved. As a result of studies of nanoheterogeneities in the soil, scanning parameters have been experimentally selected at the BioSAS station of the Kurchatov`s synchrotron radiation source. The nanostructure of soil core samples and separate fractions has been studied for the first time at this station. The above results can be used in sample preparation and further analysis of organomineral objects (soils, rocks) for a number of studies that require fixation of the substance structure at different dimensional levels.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"70 1","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Eurasian Soil Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1134/s1064229324600167","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SOIL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract—
The use of synthetic and natural resins in the fixation of organomineral matter for further studies is common, e.g. in the micromorphological study of soils, since the procedure of making thin sections includes the impregnation of the sample with the filling materials (resins). At the same time, their effect on the soil structure remains poorly known. In this article, an experiment to study the impact of synthetic and natural resins on the nano- and microstructure of soil during impregnation is considered. First data on the characteristics of resins frequently used in laboratories, as well as on their effects on the structure of soil samples have been obtained with small-angle X-ray scattering and computed tomography techniques. The X-ray transparency of fixing materials was detected. Subsequent impregnation of the AU horizon fraction from Haplic Chernozems of Kursk oblast by fixing materials allowed establishing their influence on the change in size of soil nanostructural heterogeneities. The experiment with different horizons of Protosalic Solonetz attests to a decrease in the size of nanoheterogeneities with depth in the impregnated soil as compared with that in the native soil. At the microlevel, a decrease in microporosity within the first percent after polymerization of the fixing material has been proved. As a result of studies of nanoheterogeneities in the soil, scanning parameters have been experimentally selected at the BioSAS station of the Kurchatov`s synchrotron radiation source. The nanostructure of soil core samples and separate fractions has been studied for the first time at this station. The above results can be used in sample preparation and further analysis of organomineral objects (soils, rocks) for a number of studies that require fixation of the substance structure at different dimensional levels.
摘要--合成树脂和天然树脂在固定有机矿物物质以进行进一步研究方面的应用非常普遍，例如在土壤微观形态研究中，因为制作薄片的程序包括用填充材料（树脂）浸渍样品。与此同时，人们对填充材料对土壤结构的影响还知之甚少。本文通过实验研究了合成树脂和天然树脂在浸渍过程中对土壤纳米和微观结构的影响。通过小角 X 射线散射和计算机断层扫描技术，获得了实验室常用树脂特性及其对土壤样本结构影响的第一手数据。检测了固定材料的 X 射线透明度。随后用固定材料浸渍库尔斯克州哈普利克切尔诺泽姆的非盟地层部分，确定了它们对土壤纳米结构异质性大小变化的影响。对不同地层的原盐 Solonetz 进行的实验证明，与原生土壤相比，浸渍土壤中纳米异构体的大小随着深度的增加而减小。在微观层面上，固定材料聚合后的第一个百分点内，微孔减少已得到证实。在对土壤中的纳米异质性进行研究后，在库尔恰托夫同步辐射源的 BioSAS 站对扫描参数进行了实验性选择。在该站首次研究了土壤核心样本和单独馏分的纳米结构。上述结果可用于样品制备和有机矿物物体（土壤、岩石）的进一步分析，以进行一些需要固定不同维度物质结构的研究。
期刊介绍：
Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences.
Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.
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