Thermoplastic matrix phase transitions in a carbon fiber composite, studied by contact electrical resistivity measurement of the interface between two unbonded laminae

摘要

Measurement of the contact electrical resistivity of the interface between two unbonded laminae of a continuous carbon fiber thermoplastic (nylon-6) matrix composite during heating provides a method of thermal analysis that is sensitivity to the glass transition and melting of the thermoplastic matrix. The phase transitions result in peaks in the resistivity, due to matrix molecular movement.