Composite characteristics lignin treatment

ATR-FTIR, solid state C-NMR and XRD results showed the composition of the fibre surface and the relationship of its characteristic with thermal resistance. The crystalline content of the natural fibre remarkably increased after chemical treatment, which was confirmed by XRD and solid-state C-NMR. HCIO4 is the most efficient chemical in terms of wax and fatty acid residue removal in our work. Hence, the dynamic mechanical properties of the natural fibre after HCIO4 treatment were improved. It was reported that the acidolysis lignins were isolated from sugar cane bagasse and curaua fibres by adding a mixture of dioxane and 0.1 N aqueous HCl (8.5 1.5, v/v) at 100 °C for 2 h under N2. ATR-FTIR and TGA of the oxidized lignins revealed a decrease in... 

---