AMI
Consultants does not claim to make
known to you all of the plastic foams used in the industry,
(if we would do so, you would not need us anylonger!), but
wishes to give you an outline of the main polyethylene (PE)
and polyurethane (PU) foams, used in some of the convertion
technologies which we know best:
Lamination, glueing, thermoforming (pressmoulding, pressforming,
vaccuumforming), cutting and die cutting as well as sewing.
We
have vast networks of contacts with the main cellular plastic
foam converters (mainly in france), PE and PU foam manufacturers
(international) and last but not least our partners in Morocco.
Polyethylene foams (PE):
The PE foams are categorized in two large families: The crosslinked
(XL-PE), and the uncrosslinked (NXL-PE). To give you a simple
image, the crosslinked PE foams have a strong bound molecular
structure like a textile with tight meshs. The uncrosslinked
PE foams have a not so tight molecular structure, like a non-woven
material or geotextile. Crosslinked or not, the polyethylene
foams are generally with closed cells (Some exceptions in
certain producers or by later methods of transformation).
The crosslinking of PE foam makes it possible to obtain a
higher thermal resistance, finer cells, an increased UV and
chemical resistance as well as thermoplastic properties useful
for the operations of pressforming or vaccuumforming. If these
properties (and some others) are not necessary, the NXL-PE
are quite cheaper. Contact
us for more details.
The Polyurethane foams (PU):
The main difference of the PU foam compared to the PE foam
is the open structure of their cells. (again, some exceptions
at certain producers or by later methods of transformation).
These foams can also be crosslinked or not. Appreciated for
their comfort in furnishing, car's seats or in the clothes
industry, PU foams have however some limit: being thermohardening,
they are not easily thermoformed without support of another
material. Nevertheless, the references are so numerous that
they are used in various industrial applications.
AMI
Consultants can help you to find the right foam, PE or PU,
crosslinked or not, to make your project a success. Contact
us at amiconsultants@wanadoo.fr
Links:
For
basic information on polyethylene, we recommend the following
link: http://me.mit.edu/2.01/Taxonomy/Characteristics/Polyethylene.html
For
market research on polyolefins we recommend the following
link: http://www.cmrhoutex.com/index.html
Some
European producers of PE, PU and PVC foams:
(Listed in alphabetical order
with no relation to market position, volumes or technologies)