Influence of particle dispersion on the matrix ligament thickness of polymer blends 2. A generalized equation and particle spatial distributions for different morphologies

We have derived a generalized equation for correlating the morphological pa rameters (matrix ligament thickness, particle spatial distribution paramete r, mean particle size, particle size distribution and particle volume fract ion) of polymer blends with particles obeying the log-normal size distribut ion. The particle spatial distribution parameters for eight regular lattice s and three actual morphologies have been calculated. The particle spatial distribution parameter for the morphology of well-dispersed particles is be tween 1 and ca. 1.2, and is larger than those for the pseudonetwork morphol ogy and the morphology of agglomerated particles. The relationships between the particle spatial distribution parameters defined in this work and thos e given in the literature are discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.