Nanotechnologies in the
world of compound - Latiohm CNT
The capability of achieving
electrical conductivity on polymeric materials
is guaranteed by the mean of special additives
transporting electric charges through an insulating
Compounds filled with carbon black, graphite
and carbon fibers, steel fibers or intrinsically
conductive polymers are nowadays common.
However, all these systems show a range of valid
limits, related to the electrical conductivity
and dimensional stability of manufacts, mechanical
properties, the presence of abrasive dust during
the use etc. The best solution to all these problems
would be to use a filler featuring very high
electrical conductivity, good mechanical properties
but not leading to differential shrinkages and
free of dust and particle release, even in case
of continuous working. This ideal additive has not been available
till the introduction on the market of carbon
Nanotubes. Morphologically similar to standard
carbon fibers, Nanotubes are obtained through
the growth of tubular segments in which graphitic
structures are perfectly regular and oriented,
maximizing the ratio between electric conductivity
Nanometric dimensions and the peculiar geometry
of Nanotubes allow a very high number of
contacts among fibrils scattered in the polymeric
matrix, leading to consequent electrical conductivity.
However no orientation phenomena generating
differential shrinkages (longitudinal and transversal
to the flow) are to be expected thus very dimensionally
stable moulded parts are obtainable.
The great efficiency of carbon Nanotubes
allows to obtain a very low electrical resistivity
(actually up to 10 ohm/cm) already with filler
contents lower than 3%, down to 1% for materials
filled with glass fibers and conductive ceramic.
Excellent electrical performances and dimensional
stability match with extremely clean application,
indicating LATIOHM CNT as winning grade also
for those applications where sloughing is not
acceptable, e.g. electronic industry. On
the contrary of carbon and steel fibers, these
grades are absolutely free of dust and particles
production caused by the wear and leading to
pollution, abrasion and electric short circuit.
The low percentage content of filler allows
to keep neat resin mechanical properties, without
losing impact strength, as it happens by using
massive loads of carbon black and graphite.
LATIOHM CNT offer excellent homogeneityon superficial electrical properties featuring
no "hot spots" that is zones where
the electrical conductivity is much lower than
the medium value- as it happens with steel fibres.
Outstanding surface finish without defects,
safe handling and very easy transformation:
these are further advantages of the LATIOHM
CNT family products.
LATI offers nowadays the new range of electrically
conductive Compounds LATIOHM CNT, filled with
carbon Nanotubes and destined to those sectors
where absolute performance is mandatory.
Compounds are already available on:
With LATIOHM CNT
it is now possible to have conductive thermoplastics
and micromechanical field where highest cleaning
All those parts which
have to respect security rules against explosion
dangers or accidental static discharge.
Conductive parts, also
made up of very thin walls, where cavity filling
would be difficult
Items destined to the
electrostatic painting without using primer
or specific treatments.
For any further information
do not hesitate to contact sale department and
LATI technical assistance.
5 June 2006
email: email@example.com LATI Industria Termoplastici S.p.A. Via F. Baracca, 7 21040 Vedano Olona (VA) - Italy Tel. : +390332409111 - Fax: +390332409307