Fabrication of polyimide composite films based on carbon black for high-temperature resistance

• Published in: Polymer composites Vol. 35; no. 11; pp. 2214 - 2220
• Main Authors: Kwon, Jinuk, Kim, Jinyoung, Lee, Jeeeun, Han, Patrick, Park, Dongmyung, Han, Haksoo
• Format: Journal Article
• Language: English
• Published: Hoboken, NJ Blackwell Publishing Ltd 01-11-2014; Wiley
• Subjects: Applied sciences; Carbon black; Composites; Crosslinking; Differential scanning calorimetry; Exact sciences and technology; Forms of application and semi-finished materials; Glass transition temperature; Mechanical properties; Polyimide resins; Polymer industry, paints, wood; Polymers; Synthesis; Technology of polymers; Polyimide; Carbon black; Aromatic polymer; Amidoimide polymer; Mechanical properties; Dispersion reinforced material; Condensation polymerization; Experimental study; Glass transition temperature; Thermal stability; Thermal properties; Preparation; Crosslinked polymer
• ISSN: 0272-8397; 1548-0569
• DOI: 10.1002/pc.22886

A novel high‐performance material, carbon black (CB) polyimide (PI), was obtained by the chemical synthesis of CB (carbon black N326) with PI. Following its synthesis, several analyses were carried out to investigate the thermal and mechanical properties of the newly synthesized CB‐PI. The thermal decomposition temperature of CB‐PI compared to PI increased by 76°C from 508 to 584°C. The glass transition temperature of CB‐PI as evaluated by differential scanning calorimetry increased by 204°C from 379 to 583°C compared to that of PI. Moreover, the mechanical strength of CB‐PI increased by 16% compared to that of PI. In addition, the analyses confirm that CB and PI in the synthesized CB‐PI were chemically crosslinked, which was shown to be responsible for the superior thermal and mechanical properties of the CB‐PI. POLYM. COMPOS., 35:2214–2220, 2014. © 2014 Society of Plastics Engineers