Polymer foam or cellular polymers are expanded polymers containing two or more phases: a solid polymer matrix as a continuous phase and a gaseous phase as dispersed bubbles, which are obtained by introducing a blowing agent into a polymer matrix. In addition, different types of particles can be added into the polymer matrix as nucleating agents, to increase the number of bubbles. Rheology is the science of flow and deformation of non-Newtonian materials and describes the interrelation between applied force, deformation and time. The foam structure strongly depends on the rheological properties of the polymer matrix. Hence, characterization of the rheological properties is a useful method to predict the foaming behavior of polymers in the melt state. Polymer foams have very wide applications in insulation, packaging, sporting equipment, automotive and aerospace industries.
Good understanding of polymers, foams and composites. Good understanding of physical, mechanical and rheological properties.
Familiar with the materials science, good skill of word and excel.
Professor, Department of Mechanical Engineering
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