Ethylene-octene copolymer and carbon black composite electro-thermal properties for self-regulating heating

International Conference Baltic Polymer Symposium 2018

Berzina, A.^1 ; Klemenoks, I.^1 ; Tupureina, V.^2 ; Knite, M.^1

Institute of Technical Physics, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3/7 Paula Valdena Street, Riga, Latvia^1

Institute of Polymer Materials, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3/7 Paula Valdena Street, Riga, Latvia^2

关键词: Carbon black composites;    Electrical current;    Electrical resistance change;    Equilibrium temperatures;    Ethylene-octene copolymers;    Positive temperature coefficient of resistivities;    Sample temperature;    Temperature changes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/500/1/012012/pdf
DOI  :  10.1088/1757-899X/500/1/012012

来源: IOP

【 摘 要 】

Carbon black - ethylene-octene copolymer (EOC-CB) composite electro-thermal properties were investigated for using the composite as self-regulating heating material. The materials electrical resistance change with temperature change was investigated. Additionally, while a voltage of 30 V was applied, the sample temperature and electrical current strength was measured. The samples with 15 to 20 phr CB showed positive temperature coefficient of resistivity and could be used as self-regulating heating materials. For different concentrations of CB the achieved equilibrium temperatures were between 30°C to 60°C (with 30 V) and could be used to comfortably warm the human body.