Volume Changes Accompanying the Extension of Rubber
Volume Changes Accompanying the Extension of Rubber
复制标题
DOI：
10.1122/1.549176
复制
发表时间：
1970-12
期刊：
影响因子：
--
通讯作者：
R. Penn
中科院分区：
文献类型：
--
作者：
R. Penn
用粘度计法测定了天然胶过氧化物硫化胶在拉伸过程中的体积变化。对于体积实验中涵盖的伸展和体积变化范围，对相同样品进行了力-伸展行为和压缩的测量。一个恒定的可压缩性被发现，然而，伴随着扩展的体积变化是不成比例的各向同性部分的应力。因此，应变能不能分成两部分的总和，一部分是由于剪切，另一部分是由于膨胀。
The volume changes accompanying extension of peroxide vulcanizates of natural gum rubber were measured using a dilatometer technique. Measurements of the force‐extension behavior and compressibilities were made on the same samples for the range of extension and volume change covered in the volume experiments. A constant compressibility was found; however, the volume changes accompanying extension were not proportional to the isotropic part of the stress. Thus, the strain energy cannot be separated into a sum of two parts, one due to the shear and one due to the dilatation.