When as a molding material, according to applications and required performance
(e.g. mechanical strength, the sliding portion, etc.) of different polyphenylene sulfide, glass fiber,
asbestos. Ling disulfide and polytetrafluoroethylene resin filler. PPS moldability, available
injection or compression molding, extrusion molding can be used to make wire. Sometimes,
in order to achieve the required moldability, the material can be pre-heated to crosslink it slightly.
The resin has excellent heat resistance, chemical resistance and hydrolysis resistance,
it is used in the manufacture of medical and dental equipment, but also because of the high
temperature creep is small, forming dimensionally stable and resistant to gasoline and grease,
it can be used in the automotive industry. Other useful for the manufacture of electrical and
electronic industrial parts sliding parts and bearings. In addition, it is characterized by baking
the coating film when, due to the crosslinking reaction and improve the physical properties of
the coating film.
Now with rigid foam polyurethane foam generally, poor heat resistance, use of restricted.
On the other hand, past the polyimide foam is prepared by adding the polyethylene imine
phthalocyanine microparticles hollow glass beads, poly phthalimide intermediate break
foaming imidization becoming hair foam. This production method is different from the
common law of plastic foam, product quality is also poor.