The Thermodynamics of Rubber at Small Extensions
The Thermodynamics of Rubber at Small Extensions
复制标题
小伸长时橡胶的热力学
DOI：
10.1063/1.1707500
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发表时间：
1945
影响因子：
3.2
通讯作者：
S. Lippmann
中科院分区：
文献类型：
--
作者：
D. Elliott;S. Lippmann
通过分析自己的数据，Meyer 和 Ferri 得出结论，根据 (∂E/∂L)P,T=0 的定义，在小延伸情况下，橡胶是一种理想的弹性体。对迈耶和费里数据的进一步分析并不能支持他们的结论。然而，如果将 (∂E/∂L)V,T=0 作为理想弹性体的新标准，Meyer 和 Ferri 的数据确实表明橡胶是理想的，至少对于高达 166% 的延伸率而言。新标准意味着当橡胶拉伸时，价角不会储存大量能量。然而，分子取向和原子间位移确实会影响延伸所需的能量。
On analyzing their own data, Meyer and Ferri have concluded that at small extensions, rubber is an ideal elastomer according to the definition that (∂E/∂L)P,T=0. Further analysis of Meyer and Ferri's data does not sustain their conclusion. If, however, (∂E/∂L)V,T=0 is taken as a new criterion for an ideal elastomer, Meyer and Ferri's data do indicate that rubber is ideal, at least for extensions up to 166 percent. The new criterion implies that the valence angles do not store an appreciable amount of energy when the rubber is stretched. However, both the molecular orientation and the interatomic displacements do influence the energy required for extension.