Thermal Conductivity Of Carbon Fiber Laminates

Pilling et al reported measurements of thermal conductivity between 80 and 270 k of epoxy resin specimens reinforced with carbon fibers.

Thermal conductivity of carbon fiber laminates. An exponential relationship in between the carbon fiber volume content and the throughthickness electrical conductivity of laminates was shown for the first time. They measured both the in plane and out of plane thermal conductivity. The high thermal conductivity carbon fiber properties are shown in table 1. In plane thermal conductivity of hogf t700 epoxy composite laminates increases to 50 7 w m k and enhances 14 1 times than that of t700 epoxy composite laminates.

On the one hand these carbonaceous fillers possess high thermal conductivity which act as functional component to enhance the thermal conductivity of composite laminate. Results showed that e glass vinyl ester samples exhibited in plane and through the thickness thermal conductivity of 0 35 0 05 w m k. Thermal conductivity of carbon vinyl ester composite is almost twice the conductivity in transverse and four times greater than. On the other hand these fillers may bridge continuous carbon fiber reinforcements to transfer heat more effectively or directly form continuous through thickness conductive network.

However in the through thickness direction the thermal conductivity of carbon fiber reinforced composite is no more than 1 wm 1 k 1due to the laminate structure. Although the incorporation of the interleaf fleece in laminates almost doubled their fracture toughness it deteriorated the electrical conductivity in z direction strongly from 10 1 s m to 10 4 s m. Of thermal conductivity of e glass and carbon fiber composites with vinyl ester.