JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 15

Effectiveness of graphene nano-platelets in composites
Focus
and consistently added to the mix
in a production sett ing.
Dispersions: what are we
seeking to achieve?
Within most practical applications
for graphene, the materials
engineer is looking for a consistent,
repeatable array of separated
platy materials surrounded by
matrix materials to achieve a certain
performance envelope. As a
parallel, in a composite, the mechanical
performance is realized
from the fi bres being effi ciently
coated with the matrix resin to
eff ect load transfer. Similarly,
other additives need to be well
dispersed through the matrix
of the composite material to be
eff ective. Th e same can be said
for the use of GNPs for graphene
to off er a performance advantage
- the target being to achieve
a uniform array of individual
platelets through the system.
Th is is why the pioneering work
at AGM is so important. Dispersion
technology for GNPs
is critical to their successful use.
Why? One of the key hurdles to
overcome with the use of GNP
materials in many host matrix
applications is the inherent
ability of graphene to self-stack,
leading to agglomeration of the
platelet structures. GNP manufacturers
go to great
lengths
to produce separated platelet
structures. Over time, these can
re-agglomerate, however, making
the material far less eff ective
than desired and practically
diffi cult to use. Dispersion solves
this problem for the end user,
in addition to dealing with the
environment, health and safety
(EH&S) issues surrounding the
safe use of nano-materials in
many production sett ings. Having
the materials dispersed and
encapsulated is a major benefi t.
AGM has found that the opA
growing market
According to a MarketsandMarkets research report, the global graphene market size is
expected to grow from USD 620 million in 2020 to USD 1,479 million by 2025, at a CAGR
of 19.0%.
Over the past years, graphene manufacturers have strengthened their position in the
global graphene market through expansions, partnerships, agreements, new product/
technology launches, joint ventures, contracts, and mergers & acquisitions. R&D
activities ongoing in the industry are creating cost-effective manufacturing technology
for graphene. These growing R&D activities are expected to drive the graphene market
during the 2020-2025 period.
An increase in the use of graphene may also be observed within the context of sustainable
development. When used in coatings, graphene improves the lifespan of the products it
reinforces. Its resistance to corrosion and chemicals makes it a great candidate for oil
and gas pipeline production. Graphene-reinforced products are therefore more reliable
and require less maintenance in the end. Finally, graphene plays an important role in the
growing compressed air energy storage (CAES) market, including hydrogen. It provides
increased capacity for resistance to pressure, and particularly fracture toughness.
timum means of introducing
graphene nano-materials into a
resin matrix to achieve a useful
array of GNP structures through
the matrix, or on fi bre sizing,
is to incorporate them into a
pre-dispersion.
Th us, the company off ers a
range of graphene nano-platelet
dispersions that can be diluted
to suit the loading level required
so that optimum performance
gains are achieved. Off ering
GNPs in resins, solvents and
other materials
used in
the
composite system in question
enables the end user to easily
deploy the material in the fi nal
product. AGM off ers a standard
range of graphene dispersions
in
commonly-used materials,
a green chemistry range and
can also customize them to suit
specifi c application types.
Graphene use
in composites
Once in an appropriate dispersion
format to suit the end use
application, materials engineers
can specify formulations to
target specifi c advantages.
Considerations in the use of the
material and the determining
eff ect can include:
- Mechanical attributes
and morphology of the
graphene platy material can
have a profound eff ect on
the mechanical performance
of a composite to which it
is added. GNPs can range
in form from fl at, shard-like
plates to gently folded, tissue
paper-like structures.
- GNP loading level needs
to be optimized to add
the att ribute desired. Th is
can be surprisingly low as
a percentage addition to
positively impact mechanical
att ributes. However, care
should be taken to avoid adding
too much material, as this
can lead to a deterioration of
mechanical performance. By
contrast, electrical conductivity
relies on percolation,
so higher loading levels may
be required if this is the
primary purpose of using
GNPs. Similarly, thermal
conductivity is signifi cantly
determined by the loading
level.
Focus
APAC is expected to account for the largest market share in
the graphene market during the 2020-2025 period
APAC accounted for the largest market share in the global
graphene market in 2019. A number of graphene manufacturers
in countries such as China, Japan, South Kora, India, and
Australia are contributing to the growth of the regional market.
These manufacturers are focusing on R&D activities in collaboration
with various research institutes and universities for the
development of graphene products. APAC has the highest number
of manufacturers of automotive vehicles, electric batteries,
and electronics components; these are the major applications
where graphene is used. The presence of major end-use industries
drives the graphene market in the APAC region.
N°147 September - October 2022 / jec composites magazine
15

JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022

Cover
Edito
Creating the interior of “The most beautiful building in the world”
Contents
NEWS
In brief
Agenda
Perspectives - Creating a forum to work together
Opening - New fibreglass factory in the heart of Central Asia
BUSINESS
Graphene - Effectiveness of graphene nano-platelets in composites
Carbon fibre - Sinopec intends to lead by example in China
Glass fibre - China promotes the use of glass fibre in construction
MANUFACTURING
Additive manufacturing - Towards a digital twin of UD tapes for automated fibre placement
Testing - Optical data rectification and ML-aided impedance analysis for quality assurance of carbon fibre
FEATURE AUTOMOTIVE: How are composites driving the future of automotive?
- Transportation - Thermoplastic composites: the path towards zero CO2 emissions in transport
- Compounding: Cutting-edge FDC technology reduces costs and CO2 emissions
- Pressure vessels: Enabling superior storage efficiency for Type 4 tanks with FPP dome reinforcements
- Battery: A new generation of battery packs with a recyclable epoxy SMC casing
- Lightweighting: Serial CFRTP structural part for BMW body-in-white application
- Natural fibre: Towards lightweight flax fibre-reinforced automotive headliners
SOLUTION
Sustainability - Upcycling gives a boost to coffee waste management
Defence - On field applications with composites
TECHNOLOGY
Ceramic: Cerapreg – a new concept for cost-effective reinforced ceramic composites
Index
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JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Cover
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 2
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Edito
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Creating the interior of “The most beautiful building in the world”
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 5
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Contents
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 7
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - In brief
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Agenda
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Perspectives - Creating a forum to work together
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Opening - New fibreglass factory in the heart of Central Asia
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 12
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 13
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Graphene - Effectiveness of graphene nano-platelets in composites
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 15
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 16
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Carbon fibre - Sinopec intends to lead by example in China
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 18
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 19
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Glass fibre - China promotes the use of glass fibre in construction
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 21
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 22
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Additive manufacturing - Towards a digital twin of UD tapes for automated fibre placement
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 24
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Testing - Optical data rectification and ML-aided impedance analysis for quality assurance of carbon fibre
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 26
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 27
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 28
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 29
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - - Transportation - Thermoplastic composites: the path towards zero CO2 emissions in transport
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 31
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - - Compounding: Cutting-edge FDC technology reduces costs and CO2 emissions
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 33
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 34
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - - Pressure vessels: Enabling superior storage efficiency for Type 4 tanks with FPP dome reinforcements
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - - Battery: A new generation of battery packs with a recyclable epoxy SMC casing
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 37
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 38
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 39
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - - Lightweighting: Serial CFRTP structural part for BMW body-in-white application
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 41
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 42
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 43
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 44
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - - Natural fibre: Towards lightweight flax fibre-reinforced automotive headliners
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 46
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 47
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Sustainability - Upcycling gives a boost to coffee waste management
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 49
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Defence - On field applications with composites
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 51
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Ceramic: Cerapreg – a new concept for cost-effective reinforced ceramic composites
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 53
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - Advertisers
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 55
JEC COMPOSITES MAGAZINE - Issue #147 - September/October 2022 - 56
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