Electrical Resistance Sensing of Epoxy Curing Using an Embedded Carbon Nanotube Yarn.

ABSTRACT: Curing effects were investigated by using the electrical response of a single carbon nanotube yarn (CNTY) embedded in an epoxy resin during the polymerization process. Two epoxy resins of different viscosities and curing temperatures were investigated, varying also the concentration of the curing agent. It is shown that the kinetics of resin curing can be followed by using the electrical response of an individual CNTY embedded in the resin. The electrical resistance of an embedded CNTY increased (~ 9%) after resin curing for an epoxy resin cured at 130 °C with viscosity of ~ 59 cP at the pouring/curing temperature ("Epon 862"), while it decreased (~ -9%) for a different epoxy cured at 60 °C, whose viscosity is about double at the corresponding curing temperature. Lowering the curing temper

SUBMITTER: Rodriguez-Uicab O 

PROVIDER: S-EPMC7309011 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature