Carbon nanofiber paper and its effect on cure kinetics of low temperature epoxy resin

Abstract

In this study, the preparation, properties, and characterization of thin films or “nanopapers” of carbon nanofibers (CNFs) were studied. Specifically, a layer‐by‐layer nanopaper preparation method was used, which significantly improved the mechanical properties of nanopapers. The effect of CNF nanopaper on the cure kinetics of a low temperature epoxy resin was studied. A modified autocatalytic model was used to represent the reaction kinetics. It was found that the presence of CNF nanopaper substantially increased the resin reaction rate and final conversion. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

Curing behavior of sodium carboxymethyl cellulose/epoxy/MWCNT nanocomposites

“…A two-parameter (m, n) autocatalytic model (SB model) is usually adopted to depict the curing kinetics of epoxy resin systems. 23,31 The f(a) can be depicted as:…”

“…As mentioned above, most kinetic methods employed in the area of thermal analysis consider the reaction rate as a function of only two variables, T and a. 16 A general expression of the reaction rate with temperature is established as: 16,23…”

“…where f(a) is the model function of conversion a that depends on the reaction mechanism. It is presumed to be of Arrheniustype, 22,23 where the rate constant at a given temperature is:…”

Technical feasibility of a new approach to electromagnetic interference (EMI) shielding of injection molded parts using in-mold coated (IMC) nanopaper

“…Improving the dispersion of CNFs in water prevents the formation of agglomerates, and increases CNF uniformity and fiber-overlap during the paper formation, resulting in higher nanopaper density and tensile strength [21]. Upon completion of CNFs functionalization individual nanopapers were produced by means of the vacuum filtration technique.…”

Tailored interface and enhanced elastic modulus in epoxy-based composites in presence of branched poly(ethyleneimine) grafted multiwall carbon nanotubes

“…21 In one of the earlier studies, carbon nanofibers were amine functionalized using PEI and made into nanopapers to reinforce an epoxy matrix. 22 Schaubroeck et al 23 studied the adhesion properties of PEI anchored epoxy resin coupled via cyanuric chloride on the surface of metals. In a recent work, PEI functionalized CNTs based epoxy composites were fabricated to study their thermal conductivity.…”