Electromagnetic requirements
The wave guide section is chosen to ensure the microwave
propagation at 2.45 GHz with the TE10 mode, as a sheilding from
microwaves is necessary, [2], [8].
Mechanical requirements
Polysulfone has the advantage of great resistance to breaking and
chipping [9].
Thermal requirements
Polysulfone is characterised by a particular low microwave
absorption and by a high resistance to ageing with a high continuous
use temperature (140-160°C), [9].
Chemical requirements
Polysulfone is characterised by a high stability to hydrolysis at
elevated temperature [9]. For the other liquids, one will refer to
the numerous experimental data [9]. For specific applications with
contamination control such as semiconductor processes, PFA or PTFE
teflon® will be able to protect the liquid from
polysulfone ; one can use a double-injection of teflon in the
inner of the pipe.
The typical properties of UDEL® polysulfone, an advanced engineering polymer, meet the requirements.
UDEL is registred trademark of Amoco Performance Products, Inc. and Amoco Chemical (Europe) S.A. Teflon is registred trademark of DuPont