JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 36

technology

Weight-saving is just one of the many benefits
achieved by replacing metal with prepreg

little as 10% of the raw material from
which it was cut - the remaining 90%
being scrap material (that can be
recycled, but with lower value). Composites have a buy-to-fly ratio that is 50%
lower than aluminium - and even less
with automated processes such as AFP
where the material is placed directly
where needed so there is very little scrap.

Prepregs for other industries
Early applications for prepregs were not
limited to the aerospace industry. The
sports and leisure industry was quick
to adopt them for the manufacture of
lightweight, performance-enhancing
tennis racquets, golf shafts and skis. Hexcel developed a range of America's cup
prepregs for competition yachts, while
investments in high-speed rail networks
created opportunities for prepregs in
high-speed train structures, such as
drivers' cabs. In cars, where Hexcel's
involvement began with the introduction of the first prepregs for Formula 1
racing in the 1980's, there is a clear trend
towards lighter, safer cars with enhanced
performance and reduced emissions.

Hexcel has a dedicated range of prepregs developed specifically for the automotive market

The company has developed a dedicated
range of prepregs specifically for the
automotive market to meet performance
requirements including high temperature resistance, impact absorption and
outstanding visual appeal.
Automotive is one of its key markets
for development, together with marine,
sports equipment, alternative energy
and wind energy.

Snap cure for
high-volume structures
In an ongoing commitment to extend
the applications for composites, Hexcel
has developed a new prepreg that breaks
through the 5-minute cure barrier.
HexPly® M77 cures in just 2 minutes at
150°C and has a shelf life of 6 weeks at
room temperature. The prepreg has a Tg
of 120°C and good adhesive properties
for bonding to honeycomb or aluminium. This new prepreg is therefore
suitable for rapid production in large
volumes and is finding applications in
sports equipment and automotive parts.

Constant innovation
In the early 1980's, prepregs were considered specialty materials, accounting for
around 5% of an aircraft design and used
only for non-critical secondary structures. Today, prepregs are baseline for
aircraft primary structures and constitute more than 50% of the airframe of
the Airbus A350 XWB and Boeing 787.
Meanwhile, new markets continue to
open up, driven by the need for greater
efficiency, fuel savings and performance
improvements.

Low-temperature cure with low
exotherm for thick structures
HexPly® M79 is Hexcel's new low
temperature curing prepreg that cures in
just 4 hours at 80°C, or alternatively in
6 hours at 75°C. The system has a 60%
reduced risk of provoking an exothermal reaction than standard industrial
prepregs and benefits from a long outlife
of 6 weeks at room temperature. This
makes it ideal for the manufacture of
thick laminate sections such as wind turbine blades, for boat hulls and decks and
for yacht masts when reinforced with HS
or IM carbon fibre.
Hexcel´s innovative and patented carbon UD prepregs with Grid-Technology
allow very thick carbon laminates to be
manufactured by vacuum bag technology that have superior void-free quality,
thanks to the grid, which assists with
the removal or air during the cure cycle.
This technology has been certified by
Germanischer Lloyd for wind energy
applications and is also recommended
for yacht masts.

36 jec composites magazine / No86 January - February 2014

Composite wing spar made by Automated Fibre
Placement of HexPly® prepreg ©GKN Aerospace
© GKN

Hexcel was at the birth of prepreg
technology and as these materials
really come of age, the company's R&T
developments into fibre reinforcements
and resin technologies continue to push
back the boundaries of the possible -
resulting in prepregs that are tougher,
resistant to higher temperatures, curing
faster, at lower temperatures, out of
autoclave, to meet a whole range of
performance and processing challenges.
Constant innovation is the key to
success - for Hexcel and its customer
partners. n
More information:
www.hexcel.com


http://www.hexcel.com

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014

Cover
Edito
Point of view: volume production
Contents
Agenda of Events
COMPANY & BUSINESS
In Brief
Advanced materials
APPLICATIONS
Cargo
Marine
E-car
Motorcycle
MARKET
Glass fibre
Overview 2013
FEATURE PREPREG
Laminates
Paper
Equipment
Technology
Carbon fibre
Formulation
Process
Investment
Tool
RESEARCH & DEVELOPMENT
Additive manufacturing
Class A
TECHNOLOGY & INNOVATIONS
Cutting
PVC
Recycling
Design
Filament winding
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Cover
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 2
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Edito
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Point of view: volume production
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 5
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Contents
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 7
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 9
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - In Brief
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Advanced materials
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 12
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 13
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Cargo
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Marine
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 16
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - E-car
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Motorcycle
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Glass fibre
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 20
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 21
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 22
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 23
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Overview 2013
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Laminates
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 26
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 27
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 28
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Paper
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 30
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Equipment
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 32
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 33
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Technology
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 35
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 36
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Carbon fibre
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 38
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 39
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Formulation
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 41
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 42
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Process
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 44
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Investment
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Tool
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 47
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 48
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Additive manufacturing
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 50
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 51
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 52
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Class A
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 54
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Cutting
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 56
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - PVC
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 58
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Recycling
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 60
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Design
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 62
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 63
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Filament winding
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - Index
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - In the world
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 67
JEC COMPOSITES MAGAZINE - Issue #86 - January/February 2014 - 68
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