如何理解橡胶高弹性的特点

Characteristics of Rubber Elasticity

橡胶的物理力学性能是极其特殊的,它兼备了固体、液体和气体的某些性质。橡胶高弹性具有可逆弹性形变大、弹性模量(高弹模量)小、高弹模量随温度增加而增加和快速拉伸(绝热过程)橡胶会因放热而升温等特点,而最为特殊的是橡胶高弹性本质上是一种熵弹性。

The characteristics of rubber elasticity are peculiar indeed comparing with other normal materials. The rubber exhibits some properties of both solid, liquid and gas. They have large reversible elestic deformation, low modulus, increasing of modulus with increasing temperature and temperature rising during adiabatic elongation. The more important characteristic of the rubber elasticity is the entropy origin in nature.