期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 138, 期 17, 页码 -出版社
WILEY
DOI: 10.1002/app.50275
关键词
biomaterials; fibers; polysaccharides; rheology; viscosity and viscoelasticity
资金
- Natural Science Foundation of Zhejiang Province [LQ21E030011]
This article investigates the jet evolution process and fiber formation mechanism of amylopectin rich starch solution and compares it with linear polyvinylpyrrolidone (PVP) solution. The results show that beads formation in starch fibers can be controlled by solution concentration and amylose/amylopectin types, while PVP fibers exhibit minimal bead formation.
This article reports the jet evolution process and fiber formation mechanism of the amylopectin rich starch solution in centrifugal spinning system, and the linear polyvinylpyrrolidone (PVP) is applied to compare with starch solution. The results indicate that jet evolution processes of starch solution include steady state and Rayleigh-Taylor instability over the whole concentration range for the spinnability investigation, which are due to the hyperbranched molecular of amylopectin. As a compression, the linear molecular chain PVP solution expresses a steady state jet under the spinning concentration. The spinnability results show that the obtained starch fibers are always containing the beads due to the Rayleigh-Taylor instability of jet, but can be effectively controlled by solution concentration and amylose/amylopectin. Instead, the PVP fibers show a rapid decreasing of beads till to almost disappear with the increasing of solution concentration, which due to the improvement of chain entanglement increase the steady state portion of jet with the increasing of concentration. The thermal properties of obtained fiber show that fibers obtained from amylose with more thermal stability.
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。
推荐
暂无数据