房幸2黄大学 Guangdong University of Technology 橡胶态的本质？？？？？？ A simple rubber band may be stretched several hundred percent,yet on being released,it snaps back substantially to its original dimensions.By contrast,a steel wire can be stretched reversibly for only about a 1%extension.Above that level,it undergoes an irreversible deformation and then breaks.This long-range, reversible elasticity constitutes the most striking property of rubbery materials. 橡胶态的本质？？？？？？ A simple rubber band may be stretched several hundred percent, yet on being released, it snaps back substantially to its original dimensions. By contrast, a steel wire can be stretched reversibly for only about a 1% extension. Above that level, it undergoes an irreversible deformation and then breaks. This long-range, reversible elasticity constitutes the most striking property of rubbery materials