Open AccessEnhanced electromechanical performance through chemistry graft copper phthalocyanine to siloxane‐modified polyurethane and interpenetrate with siloxane silicon rubber as composite actuator material
Author(s) -
Huang Tingting,
Yuan Bolei,
Tang Jun,
Zhang Yunhe
Publication year - 2021
Publication title -
iet nanodielectrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.23
H-Index - 9
ISSN - 2514-3255
DOI - 10.1049/nde2.12008
Subject(s) - siloxane , materials science , silicone rubber , polyurethane , composite material , elastomer , composite number , silicone , polymer , dielectric , natural rubber , shore durometer , interpenetrating polymer network , phthalocyanine , actuator , nanotechnology , optoelectronics , engineering , electrical engineering
Researchers are devoted to developing dielectric elastomers (DEs) with excellent electromechanical properties as an artificial muscle material. The authors report a new class of semi‐interpenetrating network (semi‐IPN) composites that contains siloxane‐modified linear polyurethane (PU) and silicone rubber through reasonable design of polymer structure. The organic‐filler copper phthalocyanine (CuPc) is chemically grafted into the semi‐interpenetrating network as a cross‐linking point and exhibits excellent dispersibility in the matrix. The various properties of the obtained composite films are also evaluated. The dielectric constant (8.65 at 1 kHz) and maximum actuation strain at 30 MV m −1 (5.32%) are significantly higher than those of semi‐IPN composites.