Epoxy plastics, thermal dependence

As the measurements have shown, thermal properties of filled polymers depend considerably on filler orientation. Thermal conductivity and specific heat of glass plastics with formaldehyde and epoxy binder increase with increasing temperature, whereas thermal diffusivity falls in inverse proportion with temperature. The direction of the heat flux and orientation of the filler are responsible for the conductance and thermal diffusion in a given direction. Specific heat does not practically depend on the heat flux direction, since it characterizes the scalar value, i.e., energy accumulation. 

Figure 3.356. Dependence of wear of some plastic materials by temperature [959] I) plasticized PVC II) plasticized PMMA 111) pressing powder K-18-2 based on phenolformaldehyde resin IV) epoxy resin of high-thermal stability. Applied load 3, 9) 13 MPa 8, 12) 0.13 MPa 2, 11) 0.10 MPa 1, 10) 0.05 MPa 1) 0.05 MPa 6) 0.003 MPa 5) 0,015 4) 0006 MPa.

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