Cover Image, Volume 131, Issue 6



The formation of a network at a high carbon nanofiller content can remarkably improve the thermal conductivity of polymers. The cover by Jing-Bin Chen et al. shows a micrograph of dense carbon nanotube (CNT) and graphene nanosheet (GNS) networks. Because of the different dimensionalities of carbon nanofillers, the connection types in these two networks differ: CNTs link to each other in a dot-to-dot manner, while GNSs exhibit plane-to-plane connections. The disparity of microstructures in the networks leads to diverse influences on the crystallization kinetics of iPP. The nanofiller networks show two competitive effects on iPP crystallization: the nucleation effect and the confinement effect. The CNT network has stronger nucleation and confinement effects than the GNS network. DOI: 10.1002/app.39505