The Effect of Surfactant Properties on a Rigid Foam System

Structure-properties relationships of cellular materials from biobased polyurethane foams

“…The surfactant has two main roles in the cell formation process: (i) the emulsification of the reagents and (ii) the stabilization of the formation of the bubbles [58]. Firstly, before the polyaddition starts, surfactants participate in the emulsification of the BA and the air in the monomers mixture, by reduction of the surface tension [56].…”