The study on the correlation between electrical percolation and viscoelastic percolation for carbon black（CB） filled high-density polyethylene（HDPE） conductive composites was carried out through examining the fill...The study on the correlation between electrical percolation and viscoelastic percolation for carbon black（CB） filled high-density polyethylene（HDPE） conductive composites was carried out through examining the filler volume fraction dependence of the volume resistivity（ρ） and normalized dynamic storage modulus,G c/G p,in which G c,G p are dynamic storage modulus of the composites and the matrix respectively. The results revealed that the critical filler volume fraction of viscoelastic percolation approached the lower threshold（φ1） of the electrical percolation,indicating an insulator-semiconductor change corresponding to the beginning of network structure formation. Substituting K for A,a modified Kerner-Nielson equation was obtained and used to analyze the formation of network structure. It is suggested that parameter K is associated with CB volume fraction. [WT5HZ]展开更多
文摘The study on the correlation between electrical percolation and viscoelastic percolation for carbon black（CB） filled high-density polyethylene（HDPE） conductive composites was carried out through examining the filler volume fraction dependence of the volume resistivity（ρ） and normalized dynamic storage modulus,G c/G p,in which G c,G p are dynamic storage modulus of the composites and the matrix respectively. The results revealed that the critical filler volume fraction of viscoelastic percolation approached the lower threshold（φ1） of the electrical percolation,indicating an insulator-semiconductor change corresponding to the beginning of network structure formation. Substituting K for A,a modified Kerner-Nielson equation was obtained and used to analyze the formation of network structure. It is suggested that parameter K is associated with CB volume fraction. [WT5HZ]
