Estimating the Dielectric Constant of Cellulose Acetate Fiber Aggregation with Its Components Volume Fraction

摘要

For the sake of studying the relationship between dielectric constant ( ε ) of cellulose acetate fiber aggregation and volume fraction of its compositions (including cellulose acetate fibers, water and oiling agent), the dielectric spectrum of the aggregation was measured in two forms with a Broadband Dielectric Spectrum (BDS) test system- dry cellulose acetate fibers (dry samples) and oiled cellulose acetate fibers (oiled samples). The measurement data show that dielectric constant has a linear correlation with the volume fraction of cellulose acetate fibers and the oiling agent in the aggregation, and has a non-linear correlation with the volume fraction of water in the aggregation. A function between dielectric constant of the cellulose acetate fiber aggregation and volume fraction of the components was fitted with 1stOpt. The function is in close proximity to the measured data.