STRUCTURE EVOLUTION OF POLYMER CHAINS FOR NECKING FORMATION IN HIGH-SPEED FIBER SPINNING PROCESS

Hong Zheng; Wei Yu; Hong-bin Zhang and Chi-xing Zhou Department of Polymer Materials Science & Engineering; Shanghai Jiao Tong University; Shanghai 200240; China

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STRUCTURE EVOLUTION OF POLYMER CHAINS FOR NECKING FORMATION IN HIGH-SPEED FIBER SPINNING PROCESS

Updated：2021-06-21

- STRUCTURE EVOLUTION OF POLYMER CHAINS FOR NECKING FORMATION IN HIGH-SPEED FIBER SPINNING PROCESS
- STRUCTURE EVOLUTION OF POLYMER CHAINS FOR NECKING FORMATION IN HIGH-SPEED FIBER SPINNING PROCESS
- 高分子科学（英文版） 2006年第1期页码：1-11
- Affiliations：
- Author bio：
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China（Nos.20204007,50390090,20490220,10590355）the Doctoral Foundation of National Education Committee of China（No.20030248008）the 863 Project of China（No.2002AA336120）.()
- DOI：
  中图分类号： O631.3
- 纸质出版：2006
- Accepted：
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[1].STRUCTURE EVOLUTION OF POLYMER CHAINS FOR NECKING FORMATION IN HIGH-SPEED FIBER SPINNING PROCESS[J].Chinese Journal of Polymer Science,2006(01):1-11.

STRUCTURE EVOLUTION OF POLYMER CHAINS FOR NECKING FORMATION IN HIGH-SPEED FIBER SPINNING PROCESS[J]. 2006, (1): 1-11.
[1].STRUCTURE EVOLUTION OF POLYMER CHAINS FOR NECKING FORMATION IN HIGH-SPEED FIBER SPINNING PROCESS[J].Chinese Journal of Polymer Science,2006(01):1-11. DOI：

STRUCTURE EVOLUTION OF POLYMER CHAINS FOR NECKING FORMATION IN HIGH-SPEED FIBER SPINNING PROCESS[J]. 2006, (1): 1-11. DOI：

摘要

<正>Finite element method is used to simulate the high-speed melt spinning process

based on the equation system proposed by Doufas et al.Calculation predicts a neck-like deformation

as well as the related profiles of velocity

diameter

temperature

chain orientation

and crystallinity in the fiber spinning process.Considering combined effects on the process such as flow-induced crystallization

viscoelasticity

filament cooling

air drag

inertia

surface tension and gravity

the simulated material flow behaviors are consistent with those observed for semi-crystalline polymers under various spinning conditions.The structure change of polymer coils in the necking region described by the evolution of conformation tensor is also investigated.Based on the relaxation mechanism of macromolecules in flow field different types of morphology change of polymer chains before and in the neck are proposed

giving a complete prospect of structure evolution and crystallization of semi-crystalline polymer in the high speed fiber spinning process.

Abstract

Finite element method is used to simulate the high-speed melt spinning process

based on the equation system proposed by Doufas et al.Calculation predicts a neck-like deformation

as well as the related profiles of velocity

diameter

temperature

chain orientation

and crystallinity in the fiber spinning process.Considering combined effects on the process such as flow-induced crystallization

viscoelasticity

filament cooling

air drag

inertia

surface tension and gravity

giving a complete prospect of structure evolution and crystallization of semi-crystalline polymer in the high speed fiber spinning process.

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