JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 36

FEATURE raw materials
requiring only the removal of mould release
residues.
Fig. 3: XF Technology for Class A body panels
How easy is it to incorporate HexPly XF
into the production process? We could
perhaps imagine that some potential users
who are not experienced with prepreg materials
might be nervous about a prepreg
material and its cold storage requirements.
A.F.: HexPly XF is a very robust prepreg
system. Typically, no cold storage capability
is required. Customers will require only
temperature-controlled storage, which is
normally required anyway to store widely-used
resin components. With an outlife
of up to six weeks at ambient temperature,
HexPly XF provides an easy-to-adopt solution,
even for those not currently using
prepregs. With all of the material mixing
and measuring done by Hexcel on the prepreg
line, HexPly XF is potentially easier to
use than a gelcoat, removing the chances of
a mixing or application error. In addition,
customers will not have to invest in the
mixing equipment required for gelcoat application.
How
does the HexPly XF surface technically
compare with a traditional polyester or
vinylester gelcoat? Does it provide a more
durable surface?
A.F.: Th ere are several technical benefi ts
to using HexPly XF as a surfacing technology.
Machine-produced prepreg materials
are calibrated for thickness online, so not
only is the material lighter than a gelcoat
(typically 50% lighter per m² than gelcoat),
but it is also more consistent than
a hand-applied or sprayed product that is
36
jec composites magazine / N°
very operator-dependent. Th is completely
uniform surface coating is particularly important
in large wind blades, ensuring that
weight distribution and balance are maintained,
which is critical as rotor diameters
continue to increase. Th e cured HexPly
XF surface is also more durable than the
gelcoat it replaces, and it minimizes printthrough
from the reinforcement layer.
All of these improvements are achieved
while also removing the liquid handling,
exothermic reaction and harmful vapour
hazards present on the shop fl oor when
mixing and applying gelcoats.
What could be the total weight reduction
on the giant blades we see these days?
A.F.: With the HexPly XF surface technology
being so much lighter than a gelcoat,
today's very large wind turbine blades
will benefi t from a signifi cant weight reduction.
Depending on the blade design,
weight savings of up to 200 kg are possible
on blades longer than 70 m.
How should we understand
" minimal preparation for painting " ?
A.F.: HexPly XF surface technology provides
an excellent surface quality straight
out of the mould, with only minimum
eff ort required to prepare surface for
painting. In addition, this technology is
compatible with conventional (sanding
and grinding) surface preparation technologies
used by customers, but already provides
a paint-ready surface out of mould,
143 November - December 2021
In the future, do you think you could
add further functionality to the surface
layer, perhaps to reduce abrasion, provide
lightning strike protection or add de-icing
properties? With CNT, graphene or other
nano-materials within the material?
A.F.: Hexcel is continuously evolving
the HexPly XF surface technology and is
pro-actively investigating additional functions
that can be added to the product to
increase value for our customers. We are
very eager to work closely together with
them on tailored solutions such as integrating
structural materials, enhancing
surface functionality and further improving
the fi nishing and painting processes.
What key fi nancial benefi ts do you forecast
if users switch to a HexPly XF solution for
their component fi nishing? Is it purely a
production time reduction in the fi nishing
stages or are there other factors?
A.F.: We developed HexPly XF to provide
a bett er surface fi nish to fi nished
composite parts but, of course, we had to
demonstrate that it could be cost-competitive
and also save time in the overall manufacturing
process. Blade manufacturers
can save up to fi ve hours per blade (up to
50 man hours) using HexPly XF in an infused
blade, so the benefi ts are signifi cant.
Th e material's roll format also means that
dedicated mixing equipment used for traditional
gelcoats (along with consumables
such as brushes and rollers) is no longer
required. In addition, the working conditions
on the shop fl oor are improved with
no need for vented tents or spray booths
to protect workers from hazardous fumes
during gelcoat application. Th ese additional
indirect savings could provide a blade
factory with annual cost reductions of up
to €1,000,000.
HexPly XF is our most technical surfacing
solution, providing a high quality, pinhole-free,
paint-ready surface straight from
the mould, for a massive range of large
infused or prepreg composite component
applications.
"

JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021

Cover
Edito
«Our goal is to deliver a car that you only need to charge once or twice a year»
Contents
NEWS
In brief
Agenda
Training - ‘‘We have always provided experienced personnel to support our clients composites operations’’
Lightweighting - Novel, affordable solutions for lightweight automotive and aerospace parts
BUSINESS
Market - Carbon fibre: China accelerates the timelines
Development - Five decades of composites, from raw materials to finished parts
MANUFACTURING
Injection - Hollow stereolithographic structures reinforced by short carbon fibres
FEATURE ENERGY: Are Composites ubiquitous in the Energy sector ?
- Hydrogen: Hydrogen permeation testing on non-metallic materials
- Strategy: EuCIA highlights opportunities for composites under EU Green Deal energy strategies
- Consortium - Megapol by EDF: the polymer wild card of the nuclear sector
- Windblade - Vestas V236-15.0 MW: the Eiffel Tower of the seas
- Raw materials: New surfacing technology enabling high-quality paint-ready surfaces
- Natural fibre - The Green Nacelle: pioneering natural-fibre composites in wind energy
- Recycling: Zero-emission blade recycling
- Recycling: FAIRMAT raises 8.6 million euros for carbon fibre composites recycling
SOLUTIONS
e&e - Gita mini, the Sherpa robot
Textile - A ‘‘Composite Textile’’ brand from Japan
Railway - Composites won’t be left standing on the platform
TECHNOLOGY
Vitrimers - Fibre-reinforced composites with a vitrimer matrix
Index
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JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Cover
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 2
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Edito
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - «Our goal is to deliver a car that you only need to charge once or twice a year»
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 5
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Contents
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 7
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - In brief
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 9
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 10
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Agenda
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Training - ‘‘We have always provided experienced personnel to support our clients composites operations’’
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 13
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Lightweighting - Novel, affordable solutions for lightweight automotive and aerospace parts
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 15
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Market - Carbon fibre: China accelerates the timelines
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 17
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 18
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Development - Five decades of composites, from raw materials to finished parts
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 20
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Injection - Hollow stereolithographic structures reinforced by short carbon fibres
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 22
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 23
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 24
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 25
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - - Hydrogen: Hydrogen permeation testing on non-metallic materials
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 27
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - - Strategy: EuCIA highlights opportunities for composites under EU Green Deal energy strategies
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 29
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - - Consortium - Megapol by EDF: the polymer wild card of the nuclear sector
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 31
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 32
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - - Windblade - Vestas V236-15.0 MW: the Eiffel Tower of the seas
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - - Raw materials: New surfacing technology enabling high-quality paint-ready surfaces
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 35
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 36
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - - Natural fibre - The Green Nacelle: pioneering natural-fibre composites in wind energy
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 38
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 39
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - - Recycling: Zero-emission blade recycling
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 41
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - - Recycling: FAIRMAT raises 8.6 million euros for carbon fibre composites recycling
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 43
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - e&e - Gita mini, the Sherpa robot
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 45
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Textile - A ‘‘Composite Textile’’ brand from Japan
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 47
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Railway - Composites won’t be left standing on the platform
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 49
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Vitrimers - Fibre-reinforced composites with a vitrimer matrix
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 51
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 52
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 53
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - Advertisers
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 55
JEC COMPOSITES MAGAZINE - Issue #143 - November/December 2021 - 56
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