纺纱
三元运算
背景(考古学)
形态学(生物学)
材料科学
聚合物
纤维
先验与后验
溶解度参数
纳米材料
化学工程
高分子科学
生物系统
复合材料
计算机科学
纳米技术
哲学
古生物学
工程类
程序设计语言
认识论
生物
遗传学
作者
Anurodh Tripathi,Marius Rutkevičius,Arnab Bose,Orlando J. Rojas,Saad A. Khan
出处
期刊:ACS applied polymer materials
[American Chemical Society]
日期:2019-05-14
卷期号:1 (6): 1280-1290
被引量:8
标识
DOI:10.1021/acsapm.9b00089
摘要
The prediction of the morphology of wet-spun fibers has so far been only possible by complex and experimentally intensive approaches that include the construction of ternary phase diagrams. Ultimately, however, the available models give approximate information. Here we propose an alternative predictive approach that uses design principles based on the combination of (1) relative energy difference (RED) of Hansen solubility and (2) a kinetic parameter “T” that considers mass transfer effects. Such a model is applied and experimentally validated for a priori determination of the diameter and internal morphology of wet-spun fibers. Remarkably, only three variables relevant to wet-spinning are needed, namely, the choice of polymer, solvent, and nonsolvent types. A combination of systems is tested, and the morphology of the obtained fibers is determined via electron microscopy. Aspects related to demixing, internal specific surface area (BET), and layer formation on the fibers are described qualitatively. The facile implementation of the design parameters is further confirmed through comparison with data published on the subject. Our proposed model is expected to accelerate future developments in nanomaterials, especially in the context of ongoing efforts related to fiber spinning with biopolymers.
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