JEC COMPOSITES MAGAZINE - Issue #79 - March 2013 - 85
New advances in core-shellrubber toughening for epoxy
resins
Kaneka has introduced to the market liquid epoxy tougheners
containing core-shell-rubber (CSR) under the name Kane
AceTM MX. This recent development resulted in the creation of
a new family of CSR designs which offer, among other benefits, improved fracture toughness in both fibre-reinforced and
non-reinforced epoxy formulations, without loss of mechanical
properties.
By
Nobuo Miyatake
New Business Development Manager
Kaneka Belgium N.V.
C
ore-shell-rubber (CSR) has been
successfully used as an impact
modifier in thermoplastic resins
for more than 40 years [1] because
of its various benefits such as high
toughening efficiency, maintenance of
glass transition temperature (Tg) and
affordable cost. As the name coreshell-rubber implies, the CSR structure normally comprises a spherical
cross-linked rubber core and a shell
polymer. The shell polymer is grafted
on the core and acts as a compatibilizer between the core and a host
matrix resin, which results in discrete
CSR particles once dispersed into
the matrix resin. The use of CSR in
a formulation contributes to performance consistency as well as impro-
ved fracture toughness. The highly
cross-linked core structure rules out
any concern of a free rubber component compromising the matrix, which
would decrease the Tg of the matrix
resin. As a result, CSR does not affect
the Tg of the matrix resin.
Historically, CSR toughening of liquid
thermosetting resins, such as liquid
epoxy, has not been widely adopted
on a commercial scale although there
have been many reports that CSR
improves fracture toughness, fatigue
resistance and adhesion strength of
epoxy resins on a laboratory scale,
without sacrificing thermal properties
[2-5]. The limited use of CSR is most
likely related to the fact that CSR
products historically have been supplied as solid dry powders consisting
of agglomerated primary particles. In
liquid epoxy resins, breaking down agglomerates completely to the primary
particle state is a very difficult task
and there would be serious concern
in fibre-reinforced epoxy applications
that some remaining agglomerates
might interrupt the impregnation of
fibres by the epoxy formulation.
- New advances in
core-shell-rubber
toughening for epoxy
resins............................p85
- 2D/3D woven fabrics for
ballistic protection ........p89
Research & development
additive
Formulating
Success
www.axson.com
Epoxy toughened with CSR
Kane AceTM MX has been introduced
into the market to offer the benefits of
No79 March 2013 /
jec composites magazine 85
http://www.axson.com
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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