PPS is a crystalline polymer obtained by reacting
para-dichlorobenzene and sodium sulfide in a polar organic solvent.
Mechanical strength is exceedingly high, with flexural strength in
particular exhibiting a high value, Excellent elastic recovery is
Possesses high toughness, while high values are also exhibited for
compression and shear characteristics.
Possesses superior creep characteristics even under high
temperatures and loads. In addition, possesses superior fatigue
resistance to repetitive stresses.
Elongation and impact strength are high, and brittleness, a major
drawback of traditional PPS, has been improved significantly.
Can withstand immersion in 260ºC; solder bath for 10 s, making the
resin more than able to cope with electronic component surface
Ionic impurities are low, and application is possible in
applications where strict electrical properties are demanded.
Little change in volume resistivity is shown over time, and there
is almost no change in dielectric constant due to frequency or
temperature. These characteristics make it an excellent insulative
Weld strength is high, and superior secondary processability
(screws, insertion, etc.) is exhibited.