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在DDAC单分子层在气—液界面上的各种性质以及多分子层电导率随相对湿度的非线性变化的基础上，介绍单分子层及多分子层在不同湿度条件下静电电荷随时间横向衰变的情况。使用半导体（或晶体）电荷渗透的理论来解释多分子层电荷衰变的非线性变化与相对湿度的关系。实验数据表明，电荷衰变可以分成两个阶段，即开始时的迅速衰变和随后的缓慢衰变过程。尽管DDAC是绝缘材料，可是它有良好的向空间吸附水分的能力，因而，其导电能力和驱除静电的能力比聚脂材料要好得多。DDAC不仅是一种良好的纤维软化剂而且在一定的相对湿度条件下具有较高的疏电导电能力。
Based on the various properties of the DDAC monolayer at the gas-liquid interface and the nonlinear change of the conductivity of the multilamellar layer with relative humidity, the electrostatic charge of the monolayer and the multilamellar layer under different humidity conditions The situation of horizontal decay time. The theory of semiconductor (or crystal) charge infiltration is used to explain the relationship between the nonlinear change of the multi-layer charge decay and the relative humidity. Experimental data show that charge decay can be divided into two stages, the rapid decay at the beginning and the subsequent slow decay process. Although DDAC is an insulating material, it has a good ability to adsorb moisture to space, and therefore its conductivity and ability to dissipate static electricity is much better than that of a polyester material. DDAC is not only a good fiber softener but also has a higher electrical conductivity under certain relative humidity conditions.