4.5 Article

Effect of Polyethylene Glycol on Melt Spinning of Poly(Acrylonitrile-co-1-Vinylimidazole)

期刊

FIBERS AND POLYMERS
卷 23, 期 2, 页码 321-326

出版社

KOREAN FIBER SOC
DOI: 10.1007/s12221-021-0180-1

关键词

Polyethylene glycol; Melt assistants; Poly(acrylonitrile-co-1-vinyl imidazole); Molecular dynamics; Spinnability

资金

  1. Korean Ministry of Trade, Industry, and Energy [N06000017]

向作者/读者索取更多资源

PEG and glycerol were tested as melt assistants to enhance the melt processability of poly(acrylonitrile-co-1-vinyl imidazole) (co-PAN). Both PEG and glycerol increased the specific volume of co-PAN, with PEG showing superior effects in terms of increasing specific volume and mobility. This was further confirmed by variations in the shear viscosity, showing improved spinnability for co-PAN/PEG compared to co-PAN/glycerol.
Polyethylene glycol (PEG) and glycerol were tested as melt assistants to enhance the melt processability of poly(acrylonitrile-co-1-vinyl imidazole) (co-PAN). The effects of the melt assistants on the molecular mobility of co-PAN were investigated through molecular dynamics (MD) simulations, and the specific volume changes with temperature were analyzed to evaluate the efficiency of the melt assistants theoretically. The MD results demonstrated that both PEG and glycerol increase the specific volume of co-PAN compared to pristine co-PAN. However, the effects of PEG in terms of increasing the specific volume and mobility of co-PAN were superior to those of glycerol. These findings were verified by variations in the shear viscosity of the co-PAN. Spinnability was improved significantly for co-PAN/PEG, and a more uniform co-PAN melt-spun filament could be obtained compared to co-PAN/glycerol. Thus, PEG200 is the best melt assistant for co-PAN, and 15% (w/w) is the optimal content for the melt-spinning of co-PAN.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据