Thermal, Crystallinity and Microstructure Characteristics of Chemical Modification on Sugarcane Bagasse Powder
Keywords:3-aminopropyltriethoxysilane, thermal properties, x-ray diffraction
The aim of this study was to evaluate thermal stability, crystallinity index, functional group and morphological characteristics of SCB fiber on chemical modification using sodium hydroxide (NaOH) and 3-aminopropyltrimethoxysilane (3-APS) treatment. The thermal stability, crystallinity index, functional group and morphological characteristics are analyzed using thermogravimetry analysis (TGA), x-ray diffraction (XRD) and scanning electron microscope (SEM) respectively. As a result, untreated SCB fiber, the thermal and crystallinity of chemical modification using NaOH and 3-APS silane on SCB showed the improvement. However, the 3-APS silane has better thermal stability and higher crystallinity index compare NaOH treatment. The thermal degradation of cellulose and lignin for 3-APS silane SCB fiber have increased by 31.17 °C compare to NaOH by 25.03 °C. Moreover, the crystallinity of silane fiber increases by 1.27 % compared to the NaOH only 1.12 %. From the morphology, the surface of untreated has impurity on the surface of SCB fiber. However, the NaOH treatment, the surface of SCB fiber become rough meanwhile the 3-APS silane SCB fiber, have smooth and cleaner surface.