Poly (arylene sulfide sulfone)/polytetrafluoroethylene composite film: Thermal, mechanical, hydrophobic and low dielectric constant properties

Films with excellent thermal properties and low dielectric constants have broad prospective applications in microelectronic devices. In this work, a poly (aryl sulfide sulfone)/polytetrafluoroethylene (PASS/PTFE) com-posite film was successfully fabricated via a combination of electrospinning and hot pressing. As PTFE nano -particles were dispersed uniformly throughout the composite film, the film exhibited excellent thermal stability (Tdmax = 523.56 celcius), outstanding mechanical properties (57.71 MPa tensile strength), and good hydrophobicity (97.7 degrees). Moreover, the film exhibited excellent dielectric properties: at 1 MHz, the dielectric constant and Tan delta of the film were 2.79 and 0.0051, respectively. Thus, it will have broad prospective applications in microelectronic devices.

Automated summary

In this study, a poly (aryl sulfide sulfone)/polytetrafluoroethylene (PASS/PTFE) composite film was successfully fabricated using electrospinning and hot pressing techniques. The film showed excellent thermal stability, mechanical properties, hydrophobicity, and dielectric properties, making it highly suitable for microelectronic device applications.