Next Article in Journal
Thermal Properties of Cement-Based Composites for Geothermal Energy Applications
Previous Article in Journal
Effects of HfB2 and HfN Additions on the Microstructures and Mechanical Properties of TiB2-Based Ceramic Tool Materials
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Materials 2017, 10(5), 464; doi:10.3390/ma10050464

Epoxy Resins Toughened with Surface Modified Epoxidized Natural Rubber Fibers by One-Step Electrospinning

1
Fiber Science, Cornell University, Ithaca, NY 14853, USA
2
Department of Civil Engineering, Kyungnam University, Changwon-si 51767, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Nicole Zander
Received: 4 April 2017 / Revised: 23 April 2017 / Accepted: 25 April 2017 / Published: 27 April 2017
(This article belongs to the Section Advanced Composites)
View Full-Text   |   Download PDF [4681 KB, uploaded 27 April 2017]   |  

Abstract

Epoxidized natural rubber fibers (ERFs) are developed through one-step electrospinning and directly deposited into epoxy resins without collecting and distributing of fibers. The shape of ERFs shows rough surface due to different evaporation rate of solvent mixture consisting of chloroform and dichloromethane and the average diameter of ERFs is 6.2 µm. The increase of ERFs loading from 0 to 20 wt % into the epoxy resin increases the fracture strain significantly from 1.2% to 13% and toughness from 0.3 MPa to 1.9 MPa by a factor of 7. However, the tensile strength and Young’s modulus decrease about 34% from 58 MPa to 34 MPa and from 1.4 GPa to 0.9 GPa, respectively. Due to the crosslinking reactions between oxirane groups of ERFs and amine groups in the resin, surface roughness and the high aspect ratio of ERFs, ERFs result in more effective toughening effect with the minimum loss of tensile properties in epoxy resins. View Full-Text
Keywords: natural rubber fibers; epoxy resin; toughening; surface modification natural rubber fibers; epoxy resin; toughening; surface modification
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Kim, J.R.; Kim, J.J. Epoxy Resins Toughened with Surface Modified Epoxidized Natural Rubber Fibers by One-Step Electrospinning. Materials 2017, 10, 464.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top