JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 29

Composites recycling: in search of the circular economy

b

a

Fig. 3: Oak Ridge National Laboratory's Recycling-Rapid Innovation and Commercialization Lab leveraged
a Big Area Additive Manufacturing system (a) to make this utility pole (b). The pole is made of recycled
polycarbonate waste reinforced with bamboo. Images courtesy of Oak Ridge National Laboratory, U.S.
Department of Energy.

a

b

c

Fig. 4: The Recycling Group of
the ACMA and IACMI is working
on a composites circular
economic model. The targeted
end-of-life product is a John
Deere agricultural spray
boom (a). A CHZ Technologies
Thermolyzer™ system (b) will
be used to recover glass and
carbon fibres from the boom
after it is shredded in a grinder.
These fibres will then be used
to produce a fibre-reinforced
thermoplastic sheet material,
which can be moulded into this
door panel part (c) for a new
John Deere vehicle.

Focus

effort to organise. "I don't think this would
be easy, but I do think it's feasible, and it would
greatly increase the chances of success for all of the
wonderful technologies being developed. It would
help the industry as a whole."
Processing composite scrap
and end-of-life products
Thermoplastic composite scrap and products:
These undergo a mechanical recycling process.
They are classified, separated, shredded or
chopped and, as needed, compounded. They

can then be reused in additive manufacturing,
compression injection moulding and other
processes.
Thermoset composite scrap and products:
These undergo a thermo-chemical recycling
process. The scrap or product is classified
and converted into a size that will fit into the
processing machinery.
Pyrolysis is the primary processing method.
During pyrolysis, the composite is heated in
the absence of oxygen. It decomposes, the

Conversion to energy: In some cases, composite fibres are not recovered but rather conumed along with the entire composite matrix
and used as a fuel stock for cement kilns. To
heat cement ingredients to temperatures of
about 1450°C, kilns consume large volumes
of fuel. Composite scrap, sometimes blended
with other waste, serves as an engineered fuel
for the kilns. Engineered fuel is an alternative
to coal and generates lower greenhouse
emissions. PVC in composites poses some
chlorine emissions risks, but some kilns are
designed to mitigate this risk.
Keeping an eye on regulations
The perceived riskiness and complexity
of composite materials and their recycling
processes influence how both are viewed from
a regulatory perspective. Wagger encouraged
ACMA Composites Recycling Conference
participants to stay tuned to ongoing debates
over plastic waste classification by the
Organisation for Economic Co-Operation
and Development (OECD). As of this writing, the OECD has not adopted an approach
to incorporating new Basel Convention (BC)
amendments for plastic waste categorisation.
The BC's intention is for nations to have greater control over the movement of plastics that

Feature Sustainability

Design for Recycling®
The Institute of Scrap Recycling Industries Inc. (ISRI) has a Design for Recycling® initiative to
encourage manufacturers to consider the destiny of their products during the design stage.
ISRI presents an annual Design for Recycling award. Products designed for recycling adhere
to the following general principles:
- Contain the maximum amount of materials that are recyclable;
- Are easily recycled through current or newly designed recycling processes and procedures;
- Are cost effective to recycle, whereby the cost to recycle does not exceed the value of
the recycled materials;
- Are free of hazardous materials that are not recyclable or impede the recycling process;
- Minimise the time and cost involved to recycle the product;
- Reduce the use of raw materials by including recycled materials and/or components;
- Have a net gain in the overall recyclability of the product while reducing the overall
negative impact on the environment.
Source: ISRI

fibre is recovered, and a fuel gas is captured
from the resins and polymers. The recovered
fibres can be cleaned and used in thermoset
composite processes. Or they can be compounded and used in thermoplastic processes.
At the ACMA conference, several presentations highlighted the Thermolyzer™ by
CHZ Technologies. A pyrolysis system, the
Thermolyzer generates gases while decomposing composites. These pass through a
battery of aqueous scrubbers to separate toxic
materials. Most of the gas is used as a sustainable power source for the Thermolyzer. CHZ
partner Chuck Ludwig said the company has
been working with IACMI and other industry
partners to identify the processing "sweet
spot" for composite materials so that the
recovered fibres retain optimal performance
characteristics. For example, CHZ has made
adaptations to its process to minimise the heat
and stress on delicate glass fibres. "The more
gently you can handle the fibres, the more likely
you will be to find a good application for them,"
he said.

/ jec composites magazine

29

N°136 September - October 2020



JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020

Cover
Edito
“We can change the way we envision global shipping overall”
Contents
NEWS
In brief
Agenda
BUSINESS
Reinforcement - Natural-fibre composites: an overview
Startup - When 3D printing meets sustainability
China - Xinzhou bets on the bamboo-based composites industry
MANUFACTURING
Wind - lnnovation in wind power through multi-process-capable systems
Automation - Higher production capacity thanks to automated manufacturing
FEATURE Sustainability - The path has been plotted
Recycling ecosystem - Composites recycling: in search of the circular economy
Mobility - A new generation of recycled composite materials for sustainable mobility
Preimpregnated textile - Healable composites to improve circularity
Process - New trends in composites and plastics recycling
Raw materials - Innovative composites made from up to 92% reclaimed materials
Construction - Biocomposites and automation: a sustainable future for the building industry
Ressources - Waste-free composite wheel production
Wind energy - From bottle to blade
Durable composites - Upcycling plastic bottles into value-added composite applications
Matrix - Novel thermoset composites for more competitive and sustainable industries
SOLUTIONS
Aerospace - Slinging rockets into space
Aerospace - Composites push back the final frontier
Railway - Composite overhead line catenary system for light rail
TECHNOLOGY
Repair - Developing an eddy current-based sensor system for quality assurance of carbon fibres
Inside the lab - Advanced Composite Materials Facility University of Southampton
Resin - Development of new type of plastics: Polypropylene 2.0
Index
Advertisers
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Cover
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 2
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Edito
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - “We can change the way we envision global shipping overall”
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 5
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Contents
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 7
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - In brief
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 9
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 10
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Agenda
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Reinforcement - Natural-fibre composites: an overview
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 13
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Startup - When 3D printing meets sustainability
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 15
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - China - Xinzhou bets on the bamboo-based composites industry
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 17
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Wind - lnnovation in wind power through multi-process-capable systems
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 19
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 20
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 21
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Automation - Higher production capacity thanks to automated manufacturing
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 23
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 24
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 25
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Recycling ecosystem - Composites recycling: in search of the circular economy
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 27
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 28
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 29
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 30
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Mobility - A new generation of recycled composite materials for sustainable mobility
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 32
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Preimpregnated textile - Healable composites to improve circularity
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 34
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 35
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Process - New trends in composites and plastics recycling
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 37
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Raw materials - Innovative composites made from up to 92% reclaimed materials
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 39
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Construction - Biocomposites and automation: a sustainable future for the building industry
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 41
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Ressources - Waste-free composite wheel production
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 43
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Wind energy - From bottle to blade
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 45
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Durable composites - Upcycling plastic bottles into value-added composite applications
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 47
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Matrix - Novel thermoset composites for more competitive and sustainable industries
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 49
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 50
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Aerospace - Slinging rockets into space
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 52
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 53
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Aerospace - Composites push back the final frontier
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 55
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Railway - Composite overhead line catenary system for light rail
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 57
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 58
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Repair - Developing an eddy current-based sensor system for quality assurance of carbon fibres
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 60
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 61
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Inside the lab - Advanced Composite Materials Facility University of Southampton
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 63
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Resin - Development of new type of plastics: Polypropylene 2.0
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 65
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - Advertisers
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 67
JEC COMPOSITES MAGAZINE - Issue #136 - September/October 2020 - 68
https://www.nxtbook.fr/newpress/jeccomposites/jcm-experts-digest-additive-manufacturing-2020
https://www.nxtbook.fr/newpress/jeccomposites/jcm2101_138
https://www.nxtbook.fr/newpress/jeccomposites/jcm2011_Special_Issue4
https://www.nxtbook.fr/newpress/jeccomposites/jcm2011_137
https://www.nxtbook.fr/newpress/jeccomposites/jcm2009_136
https://www.nxtbook.fr/newpress/jeccomposites/jcm2007_135
https://www.nxtbook.fr/newpress/jeccomposites/jcm_2020_Q1_Innovation_Report
https://www.nxtbook.fr/newpress/jeccomposites/jcm2005_Special_Issue3
https://www.nxtbook.fr/newpress/jeccomposites/jcm2005_134
https://www.nxtbook.fr/newpress/jeccomposites/jcm2003_133
https://www.nxtbook.fr/newpress/jeccomposites/jcm2001_132
https://www.nxtbook.fr/newpress/jeccomposites/jcm1911_Special_Issue2
https://www.nxtbook.fr/newpress/jeccomposites/jcm1911_131
https://www.nxtbook.fr/newpress/jeccomposites/jcm1909_130
https://www.nxtbook.fr/newpress/jeccomposites/jcm1907_129
https://www.nxtbook.fr/newpress/jeccomposites/jcm1905_128
https://www.nxtbook.fr/newpress/jeccomposites/jcm1903_Special_Issue1
https://www.nxtbook.fr/newpress/jeccomposites/jcm1903_127
https://www.nxtbook.fr/newpress/jeccomposites/jcm1901_126
https://www.nxtbook.fr/newpress/jeccomposites/jcm1811_125
https://www.nxtbook.fr/newpress/jeccomposites/jcm1810_124
https://www.nxtbook.fr/newpress/jeccomposites/jcm1808_123
https://www.nxtbook.fr/newpress/jeccomposites/jcm1807_122
https://www.nxtbook.fr/newpress/jeccomposites/jcm1805_121
https://www.nxtbook.fr/newpress/jeccomposites/jcm1804_120
https://www.nxtbook.fr/newpress/jeccomposites/jcm1803_119
https://www.nxtbook.fr/newpress/jeccomposites/jcm1802_119-Supplement_Innovation_Report
https://www.nxtbook.fr/newpress/jeccomposites/jcm1801_118
https://www.nxtbook.fr/newpress/jeccomposites/jcm1711_117
https://www.nxtbook.fr/newpress/jeccomposites/jcm1710_116
https://www.nxtbook.fr/newpress/jeccomposites/jcm1708_115
https://www.nxtbook.fr/newpress/jeccomposites/jcm1707_114
https://www.nxtbook.fr/newpress/jeccomposites/jcm1706_113
https://www.nxtbook.fr/newpress/jeccomposites/jcm1704_112
https://www.nxtbook.fr/newpress/jeccomposites/jcm1703_111
https://www.nxtbook.fr/newpress/jeccomposites/jcm1701_110
https://www.nxtbook.fr/newpress/jeccomposites/jcm1611_109
https://www.nxtbook.fr/newpress/jeccomposites/jcm1610_108
https://www.nxtbook.fr/newpress/jeccomposites/jcm1608_107
https://www.nxtbook.fr/newpress/jeccomposites/jcm1607_106
https://www.nxtbook.fr/newpress/jeccomposites/jcm1605_105
https://www.nxtbook.fr/newpress/jeccomposites/jcm1604_104
https://www.nxtbook.fr/newpress/jeccomposites/jcm1603_103
https://www.nxtbook.fr/newpress/jeccomposites/jcm1601_102
https://www.nxtbook.fr/newpress/jeccomposites/jcm1511_101
https://www.nxtbook.fr/newpress/jeccomposites/jcm1510_100
https://www.nxtbook.fr/newpress/jeccomposites/jcm1509_99
https://www.nxtbook.fr/newpress/jeccomposites/jcm1507_98
https://www.nxtbook.fr/newpress/jeccomposites/jcm1505_97
https://www.nxtbook.fr/newpress/jeccomposites/jcm1504_96
https://www.nxtbook.com/newpress/jeccomposites/jcm1503_95
https://www.nxtbook.com/newpress/jeccomposites/jcm1501_94
https://www.nxtbook.com/newpress/jeccomposites/jcm1412_93
https://www.nxtbook.com/newpress/jeccomposites/jcm1410_92
https://www.nxtbook.com/newpress/jeccomposites/jcm1409_91
https://www.nxtbook.com/newpress/jeccomposites/jcm1406_90
https://www.nxtbook.com/newpress/jeccomposites/jcm1405_89
https://www.nxtbook.com/newpress/jeccomposites/jcm1404_88
https://www.nxtbook.com/newpress/jeccomposites/jcm1403_87
https://www.nxtbook.com/newpress/jeccomposites/jcm1401_86
https://www.nxtbook.com/newpress/jeccomposites/jcm1311_85
https://www.nxtbook.com/newpress/jeccomposites/jcm1310_84
https://www.nxtbook.com/newpress/jeccomposites/jcm1308_83
https://www.nxtbook.com/newpress/jeccomposites/jcm1307_82
https://www.nxtbook.com/newpress/jeccomposites/jcm1305_81
https://www.nxtbook.com/newpress/jeccomposites/jcm1304_80
https://www.nxtbook.com/newpress/jeccomposites/jcm1303_79
https://www.nxtbook.com/newpress/jeccomposites/jcm1301_78
https://www.nxtbook.com/newpress/jeccomposites/jcm1212_77
https://www.nxtbook.com/newpress/jeccomposites/jcm1210_76
https://www.nxtbook.com/newpress/jeccomposites/jcm1208_75
https://www.nxtbook.com/newpress/jeccomposites/jcm1207_74
https://www.nxtbook.com/newpress/jeccomposites/jcm1206_73
https://www.nxtbook.com/newpress/jeccomposites/jcm1204_72
https://www.nxtbook.com/newpress/jeccomposites/jcm1203_71
https://www.nxtbook.com/newpress/jeccomposites/jcm1201_70
https://www.nxtbook.com/newpress/jeccomposites/jcm1111_69
https://www.nxtbook.com/newpress/jeccomposites/jcm1110_68
https://www.nxtbook.com/newpress/jeccomposites/jcm1108_67
https://www.nxtbook.com/newpress/jeccomposites/jcm1107_66
https://www.nxtbook.com/newpress/jeccomposites/jcm1105_65
https://www.nxtbook.com/newpress/jeccomposites/jcm1104_64
https://www.nxtbook.com/newpress/jeccomposites/jcm1103_63
https://www.nxtbook.com/newpress/jeccomposites/jcm1101_62
https://www.nxtbook.com/newpress/jeccomposites/jcm1011_61
https://www.nxtbook.com/newpress/jeccomposites/jcm1010_60
https://www.nxtbook.com/newpress/jeccomposites/jcm1009_59
https://www.nxtbook.com/newpress/jeccomposites/jcm1006_58
https://www.nxtbook.com/newpress/jeccomposites/jcm1005_57
https://www.nxtbook.com/newpress/jeccomposites/jcm1004_56
https://www.nxtbook.com/newpress/jeccomposites/jcm1003_55
https://www.nxtbook.com/newpress/jeccomposites/jcm1001_54
https://www.nxtbook.com/newpress/jeccomposites/jcm0911_53
https://www.nxtbook.com/newpress/jeccomposites/jcm0910_52
https://www.nxtbook.com/newpress/jeccomposites/jcm0909_51
https://www.nxtbook.com/newpress/jeccomposites/jcm0907-08_50
https://www.nxtbook.com/newpress/jeccomposites/jcm0906_49
https://www.nxtbook.com/newpress/jeccomposites/jcm0904_48
https://www.nxtbook.com/newpress/jeccomposites/jcm0903_47
https://www.nxtbook.com/newpress/jeccomposites/jcm0901_46
https://www.nxtbook.com/newpress/jeccomposites/jcm0811_45
https://www.nxtbook.com/newpress/jeccomposites/jcm0810_44
https://www.nxtbook.com/newpress/jeccomposites/jcm0809_43
https://www.nxtbook.com/newpress/jeccomposites/jcm0807_42
https://www.nxtbook.com/newpress/jeccomposites/jcm0806_41
https://www.nxtbook.com/newpress/jeccomposites/jcm0805_40
https://www.nxtbook.com/newpress/jeccomposites/jcm0803_39
https://www.nxtbook.com/newpress/jeccomposites/jcm0801_38
https://www.nxtbook.com/newpress/jeccomposites/jcm0712_37
https://www.nxtbook.com/newpress/jeccomposites/jcm0710_36
https://www.nxtbook.com/newpress/jeccomposites/jcm0709_35
https://www.nxtbook.com/newpress/jeccomposites/jcm0707_34
https://www.nxtbook.com/newpress/jeccomposites/jcm0706_33
https://www.nxtbookmedia.com