JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 101

Fig. 2: Tg comparison

applications where the retention of
mechanical properties in hot and wet
conditions is critical. This resin melts
at medium temperature (η: 1000-1500
mPa.s @ 85°C) and is easily compatible
and processed with other epoxy resins.

Liquid epoxy resins with high
thermal performances and high
modulus

Fig. 4 : TGPAP and TGMAP chemical structures

Fig. 5 : Higher modulus with TGMAP

Fig. 3: Ultimate Tg and water absorption

When prepreg formulators think high
end performances they often think TGMDA (tetraglycidylether of methylene
dianiline) or TGPAP (triglycidylether
of para-aminopheno) l.
The best known and most proven
members of those families of multifunctional epoxy resins are Araldite®
MY721, a viscous tetra-functional resin
(η: 4000 - 6000 mPa.s @ 50°C) and
Araldite® MY0510
, an extremely
fluid tri-functional
resin (η: 600- 800
mPa.s @ 25°C)
that is unique in
its capability to
dissolve thermoplastics such as
polyethersulfones
(PES), key ingredients of toughened
prepregs.
Both resins are
characterized
by their ease of
processing and
high cross-linking
density of their
cured networks.
Huntsman recently
introduced the
triglycidylethers of
meta-aminophenol (TGMAP)
family of which
Araldite® MY 0610
is the most recent
product, already

qualified for very critical and high end
applications.
In comparison to TGPAP molecules
where the epoxydized hydroxyl group is
in the “para” position, a simple change
of this group to the “meta” position
(figure 4) has very important consequences: TGMAP molecules provide
networks with significantly higher
modulus than TGPAP (and TGMDA)
without drastic decrease in thermal
resistance (figures 5). It has also been
shown that this asymmetrical structure
plays a positive role in the toughness of
the cured resin.

High thermal performance and
reduction brittleness in epoxy
networks
One way to improve the toughness of
thermoset networks is to decrease their
cross-linking density, but this is very often it is at the expense of their rigidity

Fig. 6: Araldite® MY 0816

No79 March 2013 /

jec composites magazine 101



JEC COMPOSITES MAGAZINE - Issue #79 - March 2013

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #79 - March 2013

Cover
Edito
Point of view: research & industry
Contents
Agenda of Events
COMPANY & BUSINESS
- In brief
- Core materials
APPLICATIONS
- Formula 1
- Equipment
- Wind energy
MARKET
- Europe
- Patents
FEATURE SPECIAL JEC EUROPE 2013
- Turkey, country guest of honor
- 7th International Composites Summit
- JEC Europe lnnovation Awards Programme
- lnnovation report and news
- Sustainability
RESEARCH & DEVELOPMENT
- Additive
- Fabric
TECHNOLOGY & INNOVATIONS
- Process
- Matrix
- Nano
- Resins
- Process
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - Cover
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 2
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - Edito
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - Point of view: research & industry
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 5
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - Contents
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 7
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 8
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 9
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 10
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 11
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 13
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 14
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - In brief
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - Ad1
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - Ad2
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 16
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 17
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Core materials
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 19
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 20
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Formula 1
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 22
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 23
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Equipment
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 25
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Wind energy
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 27
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Europe
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 29
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 30
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 31
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 32
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 33
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Patents
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 35
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 36
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 37
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Turkey, country guest of honor
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 39
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 40
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 41
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 42
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 43
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - 7th International Composites Summit
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 45
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 46
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 47
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - JEC Europe lnnovation Awards Programme
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 49
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 50
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 51
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 52
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 53
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 54
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 55
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - lnnovation report and news
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 57
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 58
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 59
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 60
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 61
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 62
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 63
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 64
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 65
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 66
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 67
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 68
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 69
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 70
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 71
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 72
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 73
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 74
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 75
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 76
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 77
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Sustainability
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 79
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 80
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 81
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 82
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 83
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 84
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Additive
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 86
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 87
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 88
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Fabric
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 90
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 91
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 92
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 93
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 94
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 95
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 96
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Process
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 98
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 99
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Matrix
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 101
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 102
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 103
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 104
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Nano
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 106
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 107
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Resins
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 109
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - - Process
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 111
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 112
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - Index
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - In the world
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 115
JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 116
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