cohesive energy density

Japanese: cohesive energy density(英語表記)cohesiveenergydensity
cohesive energy density

…In such cases, the ease of interfacial bonding is related to the ease of mixing between two substances, i.e., their mutual solubility, and the amount known as the solubility parameter, or sp for short, is a rough guide to adhesiveness. When a substance consisting of molecule A is held together by intermolecular forces, the energy required to break all intermolecular bonds A-A contained in a unit volume (1 ml) is defined as sp, i.e., the square root of the cohesive energy density. It has been experimentally shown that when the sp values ​​are equal, two substances tend to mix easily and tend to bond well. …

*Some of the terminology that refers to "cohesive energy density" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このような場合には,界面の結合の起りやすさは2物質間相互の混りやすさ,すなわち,相互の間の溶解度に関係し,溶解度パラメーターsolubility parameter,略してspという量が接着性のだいたいの目安になる。分子Aからなる物質が分子間力で凝集しているとき,単位体積(1ml)中に含まれるすべての分子間結合A-Aを切り離すのに必要なエネルギー,すなわち凝集エネルギー密度cohesive energy densityの平方根をspと定義する。spの値が互いに等しいときに二つの物質は混合しやすいこと,接着においてはよい接着が得られる傾向があることが実験で認められている。…

※「cohesive energy density」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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