Compared with traditional electret filtering material, PP non-woven fabrics, the hydrophobicity and thermal charge stability of the hybrid film are also improved remarkably.
与传统的驻极体过滤材料聚丙烯无纺布相比,它的疏水性和电荷热稳定性都有显著的改善。
As long as changes of voltage on the surface of the equivalent electret are measured during and after the absorption of a transient thermal pulse on one electret surface, the total charge and charge centroid in thin electret are obtained directly with this technique.
只要驻极体表面在吸收热脉冲的瞬间以及其后,测量出等效表面电压的变化,便可直接算得驻极体的总电荷量及其电荷重心。
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