skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Recycling of Commercial E-glass Reinforced Thermoset Composites via Two Temperature Step Pyrolysis to Improve Recovered Fiber Tensile Strength and Failure Strain

Abstract

Economic and regulatory pressures on the global composites industry have encouraged the research and development of technology for the recycling of fiber reinforced polymer composites. Although significant advancements have been made in the recycling of carbon fiber composites, more progress is needed in the recovery of glass fibers, which make up the overwhelming volume of the composites market. In this study, wind turbine blades and automotive sheet moulding compound (SMC) were subjected to a two temperature step pyrolysis. This multistep process yielded improvements in the recovered E-glass fiber’s tensile strength, by as much as 19%, and strain to failure, by as much as 43%, over a single high temperature step pyrolysis. Despite these gains, pre-pyrolysis fiber measurements indicate that pre-existing damage may inherently limit the quality of glass fiber recoverable from pyrolysis without any post processing.

Authors:
 [1];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1525488
Alternate Identifier(s):
OSTI ID: 1531262
Grant/Contract Number:  
AC05-00OR22725; EE0006926
Resource Type:
Published Article
Journal Name:
Recycling
Additional Journal Information:
Journal Volume: 4; Journal Issue: 2; Journal ID: ISSN 2313-4321
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; glass fibers; pyrolysis; mechanical properties; single filament testing

Citation Formats

Ginder, Ryan S., and Ozcan, Soydan. Recycling of Commercial E-glass Reinforced Thermoset Composites via Two Temperature Step Pyrolysis to Improve Recovered Fiber Tensile Strength and Failure Strain. United States: N. p., 2019. Web. doi:10.3390/recycling4020024.
Ginder, Ryan S., & Ozcan, Soydan. Recycling of Commercial E-glass Reinforced Thermoset Composites via Two Temperature Step Pyrolysis to Improve Recovered Fiber Tensile Strength and Failure Strain. United States. doi:10.3390/recycling4020024.
Ginder, Ryan S., and Ozcan, Soydan. Thu . "Recycling of Commercial E-glass Reinforced Thermoset Composites via Two Temperature Step Pyrolysis to Improve Recovered Fiber Tensile Strength and Failure Strain". United States. doi:10.3390/recycling4020024.
@article{osti_1525488,
title = {Recycling of Commercial E-glass Reinforced Thermoset Composites via Two Temperature Step Pyrolysis to Improve Recovered Fiber Tensile Strength and Failure Strain},
author = {Ginder, Ryan S. and Ozcan, Soydan},
abstractNote = {Economic and regulatory pressures on the global composites industry have encouraged the research and development of technology for the recycling of fiber reinforced polymer composites. Although significant advancements have been made in the recycling of carbon fiber composites, more progress is needed in the recovery of glass fibers, which make up the overwhelming volume of the composites market. In this study, wind turbine blades and automotive sheet moulding compound (SMC) were subjected to a two temperature step pyrolysis. This multistep process yielded improvements in the recovered E-glass fiber’s tensile strength, by as much as 19%, and strain to failure, by as much as 43%, over a single high temperature step pyrolysis. Despite these gains, pre-pyrolysis fiber measurements indicate that pre-existing damage may inherently limit the quality of glass fiber recoverable from pyrolysis without any post processing.},
doi = {10.3390/recycling4020024},
journal = {Recycling},
number = 2,
volume = 4,
place = {United States},
year = {2019},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.3390/recycling4020024

Save / Share:

Works referenced in this record:

Current status of recycling of fibre reinforced polymers: Review of technologies, reuse and resulting properties
journal, July 2015


Characterisation of products from the recycling of glass fibre reinforced polyester waste by pyrolysis☆
journal, December 2003


Pyrolysis of composite plastic waste
journal, May 2003


The thermal behaviour of glass fibre investigated by thermomechanical analysis
journal, April 2013


Recycling technologies for thermoset composite materials—current status
journal, August 2006


Compaction Effects in Glass Fibers
journal, February 1961


Characterisation of carbon fibres recycled from scrap composites using fluidised bed process
journal, June 2002


The strength of glass fibre reinforcement after exposure to elevated composite processing temperatures
journal, September 2013


Strength degradation of glass fibers at high temperatures
journal, January 2009


Determining the mechanism controlling glass fibre strength loss during thermal recycling of waste composites
journal, September 2015


Mechanical properties of thermally-treated and recycled glass fibres
journal, April 2011


Glass Fibre Strength—A Review with Relation to Composite Recycling
journal, May 2016

  • Thomason, James; Jenkins, Peter; Yang, Liu
  • Fibers, Vol. 4, Issue 4
  • DOI: 10.3390/fib4020018

Microwave heating as a means for carbon fibre recovery from polymer composites: a technical feasibility study
journal, August 2004


Microwave pyrolysis as a method of recycling glass fibre from used blades of wind turbines
journal, August 2012

  • Åkesson, Dan; Foltynowicz, Zenon; Christéen, Jonas
  • Journal of Reinforced Plastics and Composites, Vol. 31, Issue 17
  • DOI: 10.1177/0731684412453512

Regenerating the strength of thermally recycled glass fibres using hot sodium hydroxide
journal, August 2016


The Phenomena of Rupture and Flow in Solids
journal, January 1921

  • Griffith, A. A.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 221, Issue 582-593
  • DOI: 10.1098/rsta.1921.0006