Abstract
In view of the diversified requirements for polymer-based composites in modern electronic devices and electrical systems, a great challenge has to be faced in realizing the simultaneous enhancement of thermal-electrical-mechanical properties. Herein, we designed the gradient structured composites by building polyethylene (PE) based composites with different Al2O3 contents and optimized the properties by adjusting the distribution of temperature, electric and stress fields. The composites with double-layered gradient structure achieves superior through-plane thermal conductivity of 0.65 W/(m·K), high breakdown strength of 94.2 kV/mm and good tensile strength of 10.1 MPa, revealing an increase of 25 %, 10 % and 9 % compared to the traditional Al2O3/LLDPE composites, respectively. Finite element simulation provided favorable evidences for the action mechanism on gradient structure regulating temperature and electric field. The strategy of constructing gradient structure provides a feasible route to meet the comprehensive performance requirements of PE based composites in massive manufacture scenario for practical insulation applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
