Kinetic Parameters of the Cross‐linking Reaction of Cellulose Membranes with Bifunctional Epoxides

Abstract

Kinetic parameters of the cross-linking reaction of porous cellulose membranes with aqueous solutions of two different diglycidyl ethers were determined by dynamic DSC experiments. The autocatalytic reaction behavior was described with an extended Prout-Tompkins equation. Kinetic analysis revealed a similar kinetic behavior for both diglycidyl ethers, with an apparent activation energy of 45-65 kJ mol -1 and a reaction order between 0.9 and 1.5, suggesting a transition from one to another dominant reaction mechanism when the composition of the cross-linking solution is changed. Conversion curves based on the kinetic analysis serve as a basis for the design and optimization of a continuously running process for the industrial-scale production of cross-linked cellulose membranes.

Intumescent fire‐retardant performance and small‐scale reaction mechanism on banana/bio‐epoxy composites

“…Bna and SB, based on the reaction model, were chosen to confirm that the range of the E(a) is not far from the Friedman and KAS approaches. Several studies in the epoxy composite used Bna to determine its kinetic autocatalytic decomposition 41–44 . This approach has been used on carbon glass epoxy 45 and epoxy phenol 46 .…”

“…Several studies in the epoxy composite used Bna to determine its kinetic autocatalytic decomposition. [41][42][43][44] This approach has been used on carbon glass epoxy 45 and epoxy phenol. 46 While epoxy composite degradation kinetics have been investigated using the Sestak-Berggren model, such as in this literature.…”