Fig. 1. Schematic illustration of the preparation of the multilayered composites

Fig. 2. Experimental device for thermal performance testing

Fig. 3. (a) The sample model of stacked composites; (b) The optical microscope image of interfacial morphology; (c) The SEM image of h-BN(25%) filled epoxy resin composites; (d) The SEM image of E-ver (1%) filled epoxy resin composites.

Fig. 4. (a) Top center temperature curves of composites; (b) side-pointing temperature curves (the bottom is 80 ℃)

Fig. 5. （a）Heat transfer mechanism of multilayered composites；（b）Top center temperature curves of composites (bottom is 120 ℃)

Fig. 6. Top center temperature curves of the composites under natural cooling