• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >A comparison of Newtonian and viscoelastic constitutive models for dry spinning of polymer fibers
【24h】

A comparison of Newtonian and viscoelastic constitutive models for dry spinning of polymer fibers

机译：聚合物纤维干法纺丝的牛顿本构模型与粘弹性本构模型的比较

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A comparison is made of the predictions of one-dimensional mathematical model simulations of dry spinning based on Newtonian and viscoelastic constitutive e equations for the spin dope. The viscoelastic model is based upon a modified Giesekus constitutive equation with a temperature and composition-dependent relaxation time. The simulation algorithm includes the effects of the glass transition on the expected solution viscosity and relaxation time behavior along the spinline. Predictions of axial velocity tensile stress, and composition profiles for the two cases suggest the role of viscoelasticity in the locking-in behavior associated with fiber solidification along the spinline. The effects of model parameters and processing conditions are also discussed. (C) 2003 Wiley Periodicals, Inc. [References: 34]
机译：根据纺丝原液的牛顿和粘弹性本构方程，对干法纺丝一维数学模型模拟的预测进行了比较。粘弹性模型基于修正的Giesekus本构方程，具有温度和成分相关的弛豫时间。模拟算法包括玻璃化转变对沿纺丝线的预期溶液粘度和弛豫时间行为的影响。对这两种情况的轴向速度拉伸应力和成分分布的预测表明，粘弹性在与沿纺丝线的纤维固化相关的锁定行为中具有重要作用。还讨论了模型参数和处理条件的影响。 （C）2003 Wiley Periodicals，Inc. [参考：34]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号