✦ LIBER ✦

The Mechanical Deformation Process of Electrospun Polymer Nanocomposite Fibers

✍ Scribed by Gyeong-Man Kim; Ralf Lach; Goerg Hannes Michler; Young-Wook Chang

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 237 KB
Volume: 26
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200500023

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: The mechanical deformation processes of poly(methyl methacrylate)/ montmorillonite nanocomposites and their electrospun fibers were investigated by in situ tensile tests under a transmission electron microscope depending on their morphology. While the polymer nanocomposites deformed in a brittle manner, i.e., crazing, the electrospun polymer nanocomposite fibers deformed through a shear flow process leading to “nanonecking” due to the strong overlap of stress fields caused by nanopores within the fiber under a uniaxial tensile load. This unique change in deformation behavior provides the possibility that the intrinsic brittle material could be manipulated to be ductile without sacrificing its other attractive properties through a well‐controlled electrospinning process.

TEM micrograph of a low temperature fractured fiber showing the nanoporous surface structure.

imageTEM micrograph of a low temperature fractured fiber showing the nanoporous surface structure.

📜 SIMILAR VOLUMES

Electrical and mechanical properties of

Electrical and mechanical properties of carbon-black-filled, electrospun nanocomposite fiber webs

✍ Jeesang Hwang; John Muth; Tushar Ghosh 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 707 KB

Studies on the electrospun submicron fib

Studies on the electrospun submicron fibers of SIS and its mechanical properties

✍ Shu-Qin Feng; Xin-Yuan Shen; Zhong-Yu Fu; Ya-Li Ji 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 284 KB 👁 2 views

## Abstract The submicron fibers were prepared via electrospinning the styrene–isoprene–styrene (SIS) triblock copolymer from a pure solvent of tetrahydrofuran (THF) and a mixed solvent of THF and __N, N__‐dimethylformamide (DMF). The addition of DMF to THF resulted in a beneficial effect on the fi

The tensile and compressive deformation

The tensile and compressive deformation of polymer and carbon fibers

✍ M. G. Northolt; J. J. M. Baltussen 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 715 KB

Deformation mechanism of nylon 6/layered

Deformation mechanism of nylon 6/layered silicate nanocomposites: Role of the layered silicate

✍ G.-M. Kim; S. Goerlitz; G. H. Michler 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 558 KB

The Influence of Deformation-Induced Mar

The Influence of Deformation-Induced Martensitic Transformations on the Mechanical Properties of Nanocomposite Cu-Zr-(Al) Systems

✍ Jordina Fornell; Maria Dolors Baró; Santiago Suriñach; Annett Gebert; Jordi Sort 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 509 KB

Mechanical properties of polypropylene/c

Mechanical properties of polypropylene/clay nanocomposites: Effect of clay content, polymer/clay compatibility, and processing conditions

✍ J. A. Tarapow; C. R. Bernal; V. A. Alvarez 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 414 KB 👁 2 views

## Abstract In this work, polypropylene/clay nanocomposites with 0.5, 1, 3, and 5 wt % of montmorillonite (MMT) (unmodified clay) were prepared by intensive mixing at 50 rpm and 10 min of mixing. For the highest clay content (5 wt %), the initial materials or the processing conditions were changed