Studies On Continuous Mechanical Exfoliation Preparation Of Graphene/Nanopartiles Epoxy Composites

Epoxy resin(EP) nanocomposites were fabricated via continuous mechanicalexfoliation in this work. We have set up the continuous mechanical exfoliationmethod to prepare graphene via three-roll mill with the common processing technic.With the help of mechanical force, the polymer adhesive(epoxy resin) is sufficient topeel the natural graphite into the graphene sheets. We have fabricated CNPs/EP、CB/CNPs/EP conductive composites and research the conductivity of thecomposites; then, we further added CNPs/CNT/SiO2in this milling process toprepare epoxy nanocomposites, and study the synergistic effect of mechanicalproperties. With the help of mechanical force, the nanoparticles like graphenenanoplatelets were able to realize the transfer of excellent electric conductivity,mechanical properties to the polymer matrix.1. The results indicate that, continuous mechanical exfoliation is a reliable route toexfoliate graphite into graphene. After the incorporation process of the ballmilling, the resulting CNPs/EP composites, with homogeneously dispersedgraphene sheets, exhibited an extraordinary electrical and much lowerpercolation threshold(decrease from29wt%to7wt%).2. With the help of skillfully designed in situ preparetion method, graphene sheetswith high compatibility and large scale can be produced, which provides thepossibility to use the high properties of graphene.3. After the incorporation process of the three-roll milling, the resulting CB/CNPs/EP conductive composites, exhibited an extraordinary electrical property.4. The presented scalable process can be effective for the high-yield and low-costproduction of graphene. In addition, it also can be applicable for the preparationof polymer/graphene nanocomposites.5. After the in situ incorporation process of the three-roll milling, the resultingcomposites, exhibited an extraordinary mechanical property at low graphenecontent. With the CNT/SiO2（0.05%）、CNT/K180（0.5%）、K180/SiO2（0.1%）,the ultimate tensile strength of composites were increased by10%-20%, relative to the base resin.