巻号一覧
36 巻 (1996)
- 4 号 p. 175-
- 3 号 p. 110-
- 2 号 p. 55-
- 1 号 p. 1-
36 巻, 3 号
選択された号の論文の4件中1～4を表示しています
- |<
- <
- 1
- >
- >|
-
化学屋のみた粘土研究の歴史と21世紀への開発研究加藤 忠蔵1996 年 36 巻 3 号 p. 110-118
発行日: 1996/12/27
公開日: 2011/09/20
ジャーナル フリーPDF形式でダウンロード (1102K) -
合成からのアプローチ鳥居 一雄1996 年 36 巻 3 号 p. 119-131
発行日: 1996/12/27
公開日: 2011/09/20
ジャーナル フリーSmectite has been sought as a suitable material for industrial applications because of its ability to swell and disperse in water and to form organic and inorganic interlayer complexes. In controlling the properties of smectite-nanocomposite, the following four factors are considered:(1) intercalation: this aims to the role of host and guest in determing the properties of smectite nanocomposits, (2) layer structure: this includes layer charge, chemical composition, interstratified structure, etc., (3) particle size: to compare the difference between natural and synthetic smectites and (4) is edge surface condition. The unique properties of smectite are due to the structural swelling layers and its very fine nanoorder particle size. To formulate the design and to control the properties of individual smectite materials, following points are to be emphasized:(a) relations between rheological properties and particle size in hydrothermally synthesized hectorite, (b) properties of organophilic smectites and their layer charge, (c) chemical composition of novel mesoporous materials produced from synthetic smectites and their catalytic properties, etc. Moreover, some novel attractive products are recently made from smectite, such as polymer nanocomposite, vapor-permeable and waterproof cloth, column packings useful for separating optical isomers, organophilic hectorites which possess the ability to disperse in high polar organic solvents, waterproof sheet which is useful for the pollution control, ice nucleating-act materials in the ice bank, etc.抄録全体を表示PDF形式でダウンロード (1276K) -
和田 信一郎1996 年 36 巻 3 号 p. 132-139
発行日: 1996/12/27
公開日: 2011/09/20
ジャーナル フリーThe number of clay-related presentations in the annual meeting of the Japanese Society of Soil Science and Plant Nutrition is continually decreasing. This trend is probably due to the recognition that the research problems on the structure of soil clay minerals and physico-chemical properties have been basically solved. However, this does not mean that the role of clay research in soil science is terminated.
To maintain high agricultural production without environmental pollution, the addition of fertilizers and various amendments have to be controlled to meet just the requirement ofplants. For cost effective removal of the toxic heavy metals from soils, e.g., by electrokinetic methods, the movement ofthe metals in an electric field under intensive interaction with soil clays have to be predicted quantita tively. This research area, which may be called Soil Chemical Engineering, requires more applicationoriented predictive studies on clay-nutrient and clay-pollutant interactions basedon the comprehensive understanding of physical, chemical mineralogical nature of clay materials.
In the course of research in soil chemical engineering, discovery of new soil clay materials and new phenomena are expected, which will, in turn, stimulate the basic clay research.抄録全体を表示PDF形式でダウンロード (2869K) -
久保 博1996 年 36 巻 3 号 p. 140-148
発行日: 1996/12/27
公開日: 2011/09/20
ジャーナル フリーIn the 20th century, remarkable advances have been made in construction technology, wich have enabled the construction of many complex structures including roads, railways, tunnels, bridges, underground spaces, super-high buildings, dams, airports, port facilities, etc. Clay science has made significant contribution to this technology, with the utilization of soil, weathered rock and clay materials. In the 21th century, problems of the grobal environmental, dwindling natural resources, energy generation, waste disposal, disaster prevention, food shortages, etc., will become increasingly prominent. Consequently, research and development to overcome these problems will become increasingly important in the fields of construction and clay science.抄録全体を表示PDF形式でダウンロード (1368K)
- |<
- <
- 1
- >
- >|