“colloid”的概念、定义、翻译、参考文献-科学参考

colloid

Chemical Engineering

A suspension of particles whose size lies within the range of 1 nm to 1 μm and dispersed within a liquid medium. Hydrophilic colloids consist of thermodynamically stable water-soluble macromolecules such as gelatine and starch. Hydrophobic colloids consist of insoluble particles in a finely divided state suspended in water and are thermodynamically unstable. Colloids often have a kinetic stability due to a surface-charge repulsion effect between particles.

Geology and Earth Sciences

1. Substance composed of two homogeneous phases, one of which is dispersed in the other.
2. Soil colloids are substances of very small particle size, either mineral (such as clay) or organic (such as humus), which therefore have a large surface area per unit volume. Colloids usually provide surfaces with high cation exchange capacity, and also exhibit an instability controlled by soil chemistry.

单词	colloid
释义	colloid Chemical Engineering A suspension of particles whose size lies within the range of 1 nm to 1 μm and dispersed within a liquid medium. Hydrophilic colloids consist of thermodynamically stable water-soluble macromolecules such as gelatine and starch. Hydrophobic colloids consist of insoluble particles in a finely divided state suspended in water and are thermodynamically unstable. Colloids often have a kinetic stability due to a surface-charge repulsion effect between particles. Geology and Earth Sciences 1. Substance composed of two homogeneous phases, one of which is dispersed in the other. 2. Soil colloids are substances of very small particle size, either mineral (such as clay) or organic (such as humus), which therefore have a large surface area per unit volume. Colloids usually provide surfaces with high cation exchange capacity, and also exhibit an instability controlled by soil chemistry.
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