In this study

phase separation is realized by electric field. After the hydrophilic light curing resin poly(ethylene glycol diacrylate) (PEGDA) was blended with hydrophobic heat curing dimethylsiloxane acrylate prepolymer (PDMS)

PEGDA was orderly arranged in the direction of film thickness by dielectrophoresis under electric field. The pearl chain structure was fixed by light curing of PEGDA and thermal curing of PDMS. The formation of chain structure was observed online by optical microscope to determine the optimal conditions for phase separation. The structure of the cured PEGDA/ PDMS composite membrane was characterized by scanning electron microscopy (SEM) and Raman spectrometer

which further proved the realization of phase separation. The mechanical properties of the materials were tested. The realization of phase separation judged by the change of contact angle had little effect on the mechanical properties of the films. The results show that the chain structure of PEGDA particles in PDMS matrix under AC electric field is faster and uniform than that under DC electric field. When the AC electric field intensity is 500 V/mm and the frequency is 100 Hz

the pearl chain structure formed by PEGDA in the PDMS matrix is uniform. Compared with the composite film without electric field

the flexibility and surface hydrophilic properties of the obtained PEGDA/PDMS composite film increase

and the optical properties change little.