JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 44
country guest of honour: Japan
Development of innovative CFRTP
technologies for mass-produced cars
By
In 2008, under the management of NEDO (New Energy and
Industrial Technology Development Organization, Japan) and
METI (Ministry of Economy, Trade and Industry, Japan), the
University of Tokyo started a national project involving Toray
Industries, Inc., Mitsubishi Rayon Co., Ltd., Toyobo Co., Ltd.
and Takagiseiko Co. as partners to solve the problems associated with the use of carbon-fibre-reinforced thermoplastics
(CFRTP) in the automotive industry.
Jun Takahashi, proFessor
universiTY oF TokYo
T
he mass production of ultralightweight cars using carbon-fibre-reinforced plastics
(CFrP) poses various problems
related, among others, to cost, manufacturing and recycling that need to
be solved.
Matrix resins
The University of Tokyo selected
polypropylene (PP) and, to some
extent, polyamide (PA) as matrix
resins as they combine cost reductions, high-cycle moulding and high
recyclability. Several combinations of
special surface-treated carbon-fibre
and modified resins were developed to
simultaneously achieve high strength,
energy absorption capability, formability and recyclability. A method for
fully impregnating these resins into
carbon fibres was also developed to
achieve a moulding cycle lasting only
minutes.
Two types of novel CFrTP preforms
Effect of the modification in both CF and PP to improve their interfacial adhesion
44 jec composites magazine / No81 May - June 2013
are now available: a discontinuous
carbon-fibre-reinforced isotropic
prepreg for complex shape parts and
a continuous carbon-fibre-reinforced
prepreg for primary structural parts
such as frames.
CFRTP prepregs
As part of the project, two types of
low-cost, high-performance CFrTP
prepregs were developed for use in the
mass production of ultra-lightweight
cars. These prepregs can be manufactured by high-cycle moulding and are
recyclable.
The weight of CFrTP panels using
these prepregs is one-third that of
steel panels and the estimated weight
of cars using these CFrTP materials
is between 40 to 70% of conventional
steel cars.
The most notable feature of these
CFrTPs is their fracture process
without large delamination. due to
its ductile fracture process, the tough
nature of this material not only brings
a large energy absorption capacity but
also provides more flexible manufacturing methods for composite
structures.
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013
Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013
Cover
Edito
Point of view GKN Aerospace: Making wing without winging it
Contents
Agenda of Events
COMPANY & BUSINESS In Brief
APPLICATIONS
Truck
Corrosion
Wind
MARKET
Carbon
Recycling
Human ressources
SPECIAL JEC ASIA 2013
Participating companies
Conferences
Awards
Life achievement
Country guest of honour: Japan
Environment
RESEARCH & DEVELOPMENT
3D fabric
Cost prediction
TECHNOLOGY & INNOVATIONS
Automotive
NDT
Carbon
Adhesives
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Cover
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 2
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Edito
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Point of view GKN Aerospace: Making wing without winging it
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 5
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Contents
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 7
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 8
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 9
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 11
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - COMPANY & BUSINESS In Brief
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 13
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 14
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 15
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Truck
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 17
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Corrosion
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Wind
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 20
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 21
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Carbon
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 23
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 24
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 25
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Recycling
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Human ressources
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 28
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 29
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Participating companies
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 31
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Conferences
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 33
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Awards
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 35
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 36
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 37
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 38
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Life achievement
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Country guest of honour: Japan
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 41
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 42
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 43
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 44
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 45
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 46
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 47
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 48
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 49
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 50
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 51
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Environment
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 53
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 3D fabric
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 55
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 56
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 57
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 58
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 59
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Cost prediction
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 61
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 62
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 63
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Automotive
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 65
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 66
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 67
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 68
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 69
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - NDT
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 71
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 72
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 73
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 74
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 75
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 76
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Carbon
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 78
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 79
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Adhesives
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - Index
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - In the world
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 83
JEC COMPOSITES MAGAZINE - Issue #81 - May/June 2013 - 84
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