A short random walk through polymer material behavior
Photographic film (or rather the base of a film) is made of transparent polymeric material. In this chapter we consider material properties of such film. Suppose a flat photographic film shown in Figure 16.1(a) is bent around a cylinder, as depicted in Figure 16.1(b), is held in this state for some time t w , and is then released. If the film were purely elastic then it will instantaneously recover its original flat shape.
KeywordsRelaxation Modulus Polymer Glass Cohesive Energy Density Linear Viscoelastic Material Film Base
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