Supercritical Fluids and Their Application to the Recycling of High-Performance Carbon Fibre Reinforced Composite Materials

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Supercritical Fluids and Their Application to the Recycling of High-Performance Carbon Fibre Reinforced Composite Materials ( supercritical-fluids-and-their-application-recycling-high-pe )

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Decomposition Reactions for BADGE Based Epoxy Resin Control Samples Cured epoxy resin samples were subjected to reaction conditions comprising of water alone, at 573 K for 30 minutes in the High-Temperature Reactor (HTR) and used as a control. The reactor solvent loading was maintained at 50 %v, with the resin loading being 33 ± 1 mg ml- 1. In all cases, epoxy resin samples were rectangular having an approximate length, width and depth of 40 mm, 10 mm and 5 mm respectively. Additional control samples were generated for each of the reaction conditions. In the investigation of the co-solvent concentration effects, the control consisted of water containing 10 mg ml-1 Cs2CO3. When considering the Cs2CO3 concentration effects, the control sample consisted of the optimum alcohol concentration [R-OH] without the addition of Cs2CO3. Effect of Co-solvent Concentration Decomposition reactions of epoxy resin samples were carried out in the HTR. A description of the HTR and associated equipment is provided in Chapter 3.2. The solvent loading was 50 %v for all reactions irrespective of the solvent composition and the experimental procedure was identical for all reactions, with the exception of varying compositions. The volumes of H2O, PrOH and EtOH were measured out into a glass beaker using a burette (accuracy, ± 0.2 ml), prior to the addition of 10 mg ml-1 Cs2CO3 according to the reaction schedule provided in Table 10. 99

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