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Strain-induced self-assembly of crystallites in elastomers
Physical Review E ( IF 2.2 ) Pub Date : 2021-07-14 , DOI: 10.1103/physreve.104.014502 R Hentschke 1 , J Plagge 1
Physical Review E ( IF 2.2 ) Pub Date : 2021-07-14 , DOI: 10.1103/physreve.104.014502 R Hentschke 1 , J Plagge 1
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We propose a model of strain-induced crystallization in elastomers, combining Flory's original work with a description of crystallization adopted from the theory of micellar solutions. The experimentally observed hysteresis appears in the model due to a continuous, unidirectional change of the free energy difference between straightened polymer sections which occur isolated and those which are aggregated. The model yields good qualitative and even semiquantitative agreement with measurements of crystallization in natural rubber at variable cross-link density, strain amplitude, and temperature. The attendant description of the stress hysteresis is less good but still qualitatively correct.
中文翻译：
弹性体中微晶的应变诱导自组装
我们提出了弹性体中应变诱导结晶的模型，将 Flory 的原始工作与从胶束溶液理论中采用的结晶描述相结合。实验观察到的滞后现象出现在模型中，这是由于拉直的聚合物部分之间的自由能差异连续、单向变化，这些部分发生孤立和聚集。该模型与天然橡胶在可变交联密度、应变幅度和温度下的结晶测量结果具有良好的定性甚至半定量一致性。应力滞后的附带描述不太好，但在质量上仍然是正确的。
更新日期：2021-07-14
中文翻译：
弹性体中微晶的应变诱导自组装
我们提出了弹性体中应变诱导结晶的模型，将 Flory 的原始工作与从胶束溶液理论中采用的结晶描述相结合。实验观察到的滞后现象出现在模型中，这是由于拉直的聚合物部分之间的自由能差异连续、单向变化，这些部分发生孤立和聚集。该模型与天然橡胶在可变交联密度、应变幅度和温度下的结晶测量结果具有良好的定性甚至半定量一致性。应力滞后的附带描述不太好，但在质量上仍然是正确的。
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