摘要
对涤/棉/丝三组分复合纱线的拉伸性能作了分析和研究。在小变形下建立了一个三元件模型来描述复合纱的拉伸情况,说明3根不同弹性模量的纱线复合后其拉伸弹性模量得到改善,介于三者之间;而在大变形下建立了一个四元件拉伸力学模型来描述复合纱的拉伸断裂情况,同时通过非线性回归分析法对其进行了验证,证明Sirofil复合纱的非线性黏弹特征可以采用多项式来描述,实验拉伸曲线与理论推导的模型基本一致。
The tensile properties of tri-component Sirofil composite yarn is analyzed. To characterize the stretchability of the composite yam, a three-element model with little distortion has been established. It is concluded that the elasticity modulus can be. improved when three single yams with different modulus of elasticity are composited. Under this condition, the modulus of elasticity of the composite yam is among the three. Furthermore, in order to describe the elongation at break of the composite yam, a four-component dynamic model of drawing with large distortion is developed. And the results obtained are verified by nonlinear re＇gression analysis. It is demonstrated, that the properties of non-linear visco-elasticity of sirofil composite yam can be characterized by using multinomial, and the curve plotted according to the experimental result is basically in agreement with that deduced by the theoretical model.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2007年第6期45-47,51,共4页
Journal of Textile Research
关键词
复合纱
拉伸性能
多项式回归
数学模型
composite yarn
tensile properties
multinomial regression
mathematical model
