Conducting composite using an immiscible polymer blend matrix

Carbon black (CB) fillers were used to study the feasibility of achieving m ultiple percolation using an immiscible (polar) polymer blend matrix By tai loring the morphology of the insulating dual phase matrix it has been shown that the percolation threshold (Phi(c)) can be reduced over single-phase m atrices. Cocontinuity in the polymer matrix is important in reducing Phi(c) by either preferentially isolating the conducting filler at the interface of the two phases or within one particular continuous phase of the matrix t hereby forming a continuous conducting network within a continuous network (multiple percolation).,Actual melt processing time has been found to influ ence the dispersion of the fillers and hence Phi(C). Polarity of the matrix as well as the processing method has also been found to influence the disp ersion of the filler within the host polymer.