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New ultra-stiff materials:
non-deformable as metal alloys
Metal replacement is a well known opportunity
in the world of thermoplastic compounds for injection
moulding. Carbon and glass fibres are commonly
used to improve mechanical performance of plastics,
i.e. elastic and flexural modulus, elongation
and load at break as well as impact strength.
Zamak, aluminium and similar alloys can be replaced
in a wealth of projects produced across the most
different market sectors.
Advantages deriving from injection moulding
technique may be very appealing also for the
manufacturing of parts where high performance
materials are required, as special steel, thermoset
resins and composites.
Talking about composite materials, it is acknowledged
how proprietary production techniques, hardware,
assets and know-how, as well as the finishing
process of parts, are extremely costly.
Also the managing of scraps, defective parts
and end-of-life waste can generate issues because
of the intrinsic lack of recyclability belonging
to thermosets acting as matrix for reinforced
composites.
LATI has created a brand new family of injection
mouldable ultra-stiff compounds capable to supply
new opportunities to engineers, designers and
developers all over the industry. Based on the
best performing thermoplastic resins, these
compounds feature high modulus carbon fibre
and resulting compounds can represent a valid
replacement of metal alloys as well as many
composites. Ultra-stiff compounds can be injection
moulded on ordinary machines and equipment,
do not require curing processes, can be recycled
and are never harmful or dangerous to health
and environment.
| COMPOUND |
Elastic
Modulus (MPa)
|
Load
at break (MPa)
|
Elongation
at break (%)
|
| PA66 G/50 |
15000
|
215
|
2,5
|
| PA66
K/30 |
24000
|
240
|
1,5
|
| PPS G/40 |
16000
|
160
|
1,2
|
| PPS
K/30 |
22500
|
185
|
1
|
| PPS -
STIFF |
49000
|
200
|
0,6
|
| PPA
G/50 |
19000
|
265
|
2
|
| PPA -
STIFF |
41000
|
280
|
1,5
|
| PEEK
G/40 |
14000
|
205
|
1,5
|
| PEEK K/30 |
21500
|
225
|
1,5
|
| PEEK
- STIFF |
40000
|
210
|
0,7
|
| Tensile
test - as ASTM D256 norm |
 |
Mechanical properties are just outstanding
in comparison to any other engineering
high performance compound. Tensile elastic
modulus (as per ASTM D256 norm) can reach
50000 MPa, against 15000 MPa of an ordinary
carbon reinforced thermoplastics compound;
load at break rises up to 300 MPa against
200 MPa of a glass or carbon highly charged
reinforced compound.
The very low ratio between elongation
and applied load is anyhow the most interesting
parameter, guaranteeing the feasibility
of parts that show little or no deformation.
Elongation at break lower than 1% is a
mandatory feature leading to the lowest
deformations, a necessary requirement
for military and aerospace industry, for
medical sector, for automotive, for sport
and leisure time etc.
LATI products are available on the best
thermoplastics: PA, PPS, PPA and PEEK.
These base resins allow products to withstand
the most aggressive chemical environment
as high temperatures, much above 200°C.
High modulus reinforcement fibres can
vastly limit also fatigue and creep related
problems, furtherly reducing the performance
gap between injection mouldable plastics
and composites.
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LATI R&D and Technical Assistance will
help you to solve any issue related to the implementation
of special products and metal replacement.
| Contact: |
email:
marketing@it.lati.com
LATI Industria Termoplastici S.p.A.
Via F. Baracca, 7 21040
Vedano Olona (VA) - Italia
Tel. : +390332409111 - Fax: +390332409307
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