A composite based on paraffin, styrene-butadiene-styrene (SBS) triblock cop
olymer and exfoliated graphite (EG) is prepared. In this composite, paraffi
n undergoes solid-liquid phase change in the SBS network, and there is no l
eakage of it even in the state of melting. The composite exhibits high ther
mal conductivity and nearly 80% of the latent heat of fusion per unit mass
of the paraffin. (C) 2001 Elsevier Science B.V. All rights reserved.