Tensile deformation of poly(p-phenylene terephthalamide) fibres, an experimental and theoretical analysis
Tensile deformation of poly(p-phenylene terephthalamide) fibres, an experimental and theoretical analysis
复制标题
聚对苯二甲酰对苯二胺纤维的拉伸变形、实验和理论分析
DOI：
10.1016/0032-3861(80)90088-9
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发表时间：
1980
期刊：
影响因子：
4.6
通讯作者：
M. Northolt
中科院分区：
文献类型：
--
作者：
M. Northolt
研究了聚对苯二甲酰胺纤维的拉伸变形。通过对由线性排列的微晶组成的系列模型的变形行为的分析，得到了应力、微晶取向分布、动态弹性模量和应变之间的函数关系。结果表明，这些纤维的变形在很大程度上是由微晶的弹性应变和不可逆旋转引起的。推导了结晶取向分布较窄的结晶聚合物纤维的应力应变关系公式。
The tensile deformation of poly(p-phenylene terephthalamide) fibres has been investigated. Functional relationships observed between stress, crystallite orientation distribution, dynamic modulus and strain are derived from an analysis of the deformational behaviour of a series model consisting of a linear arrangement of crystallites. It is shown that the deformation of these fibres is largely brought about by the elastic strain and irreversible rotation of the crystallites. A formula is derived for the stress—strain relationship of a crystalline polymeric fibre with a narrow crystallite orientation distribution.