新闻纸浆的可溶净电荷、表面阳电荷和CTR随淀粉用量的增加而增加，表面阴电荷随淀粉用量的增加而减小。

The dissolving electric charge, surficial positive charge and CTR increased and surficial negative charge decreased with increase of the starch dosage.

电荷重心和电荷密度可通过计算得出。

The mean charge depth and the charge density can be calculated.

橡胶膜贮存有电荷，遇到外力时电荷量改变。

The rubber stores an electrical charge, and when it is compressed, the amount of charge is changed.

同性电荷相斥，异性电荷相吸，这是电的基本法则之一。

Like charges repel, but opposite ones attract, which is one of the fundamental laws of electricity.

结果表明树脂型AKD胶具有更高的阳电荷密度、更长的有效贮存期和更好的施胶效能，且不易霉变。

The result shows that the AKD size emulsified with cationic resin has higher charge density, longer storage life and better sizing efficiency, and also no susceptibility to moulds.