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 (such as ultrasonic cleaning container sterilization temperature
Because of its high temperature creep is small, forming dimensionally stable and resistant to gasoline and
grease, it can be used in automobile manufacturing. 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.
To determine the content of the gel body portion, the excessive heating in air polyimide, polybenzoxazole
film was dissolved in concentrated sulfuric acid insoluble fraction was filtered off, washed with water until
neutral reaction, dried to a constant weight.
In stabilizing the polybenzoxazole samples, determination of phosphorus content is to study mineralization
sample after the acid generated by the blue phosphorous acid complexes were photometric phase carried out.