Thermal and Electrical Investigation of Conductive Polylactic Acid Based Filaments

Euroinvent ICIR 2018

Dobre, R.A.^1 ; Marcu, A.E.^2 ; Drumea, A.^2 ; Vldescu, M.^2,3

Telecommunications Department, Politehnica University of Bucharest, Iuliu Maniu Blvd. no. 1-3, Bucharest

061071, Romania^1

Electronic Technology and Reliability Department, Politehnica University of Bucharest, Iuliu Maniu Blvd. no. 1-3, Bucharest

061071, Romania^2

Optoelectronics Research Center (UPB-CCO), Politehnica University of Bucharest, Iuliu Maniu Blvd. no. 1-3, Bucharest, Romania^3

关键词: Conductive properties;    Electrical interconnections;    Electrostatic dissipative;    Parallel impedance;    Printed electronics;    Printed structures;    Quantitative result;    Thermal and electrical properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/374/1/012005/pdf
DOI  :  10.1088/1757-899X/374/1/012005

来源: IOP

【 摘 要 】

Printed electronics gain momentum as the involved technologies become affordable. The ability to shape electrostatic dissipative materials in almost any form is useful. The idea to use a general-purpose 3D printer to manufacture the electrical interconnections for a circuit is very attractive. The advantage of using a 3D printed structure over other technologies are mainly the lower price, less requirements concerning storage and use conditions, and the capability to build thicker traces while maintaining flexibility. The main element allowing this to happen is a printing filament with conductive properties. The paper shows the experiments that were performed to determine the thermal and electrical properties of polylactic acid (PLA) based ESD dissipative filament. Quantitative results regarding the thermal behavior of the DC resistance and the variation of the equivalent parallel impedance model parameters (losses resistance, capacitance, impedance magnitude and phase angle) with frequency are shown.. Using these results, new applications like printed temperature sensors can be imagined.