Investigation on the electrical response behaviors of multiwalled carbon nanotube/polyurethane composite in organic solvent vapors

• Published in: Sensors and actuators. B, Chemical Vol. 166-167; pp. 330 - 337
• Main Authors: Shang, Songmin, Zeng, Wei, Tao, Xiao-ming
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 20.05.2012
• Subjects: absorption; Absorption behaviors; Actuators; carbon nanotubes; Conducting composite; Dielectric constant; electrical resistance; Electrical response behaviors; equations; Gas sensor; Mathematical analysis; Multi wall carbon nanotubes; Multiwalled carbon nanotube; Permittivity; Polyurethane resins; polyurethanes; Solvents; Swelling; temperature; vapor pressure; vapors; Absorption behaviors; Gas sensor; Conducting composite; Multiwalled carbon nanotube; Electrical response behaviors

A conducting composite was fabricated from the polyurethane (PU) filled with multiwalled carbon nanotubes (MWCNTs). In the organic vapors condition, the electric resistance of the composite exhibited a drastic increase when compared with its initial resistance. This is because of the matrix swelling...