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Abstract
This presentation describes the new DuPont 2940 thermomechanical analyzer (TMA). The 2940 is a thermal analysis and mechancial characterization tool that measures the mechanical properties of a material as a function of time, temperature, and force. The instrument offers all of the traditional capabilities of TMA, but with total automation, increased sensitivity and enhanced force control. Specimen measurment and dimension change are controlled by a stepper motor and linear variable differential transformer. Focusing on higher performance polymer systems, this presentation explores their thermomechanical properties. Application techniques easily managed by TMA include the coefficient of thermal expansion (CTE), glass transition, and three-point flexural bending. The influence of thermal history and processing effects on these properties will be reported on specific polymers and composites.
This presentation describes the new DuPont 2940 thermomechanical analyzer (TMA). The 2940 is a thermal analysis and mechancial characterization tool that measures the mechanical properties of a material as a function of time, temperature, and force. The instrument offers all of the traditional capabilities of TMA, but with total automation, increased sensitivity and enhanced force control. Specimen measurment and dimension change are controlled by a stepper motor and linear variable differential transformer. Focusing on higher performance polymer systems, this presentation explores their thermomechanical properties. Application techniques easily managed by TMA include the coefficient of thermal expansion (CTE), glass transition, and three-point flexural bending. The influence of thermal history and processing effects on these properties will be reported on specific polymers and composites.
Date
9/1991
9/1991
Author(s)
Stephen Sauerbrunn
Stephen Sauerbrunn
Page(s)
108-119
108-119
Keyword(s)
thermomechancial analyzers; polymers; composite; materaial characteristics
thermomechancial analyzers; polymers; composite; materaial characteristics