Authors : S. S. Mankar, A. R. Chaudhari* and A. B. Kalambe
Page Nos : 790-800
Description :
The thermal properties and miscibility of cellulose acetate (CA) and industrial waste lignin (L) blends were investigated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and Fourier transform infra-red spectroscopy (FTIR) over the entire range of composition. The lignin was blended up to 50 wt% with cellulose acetate. The blends were prepared by solution blending method. Although the lignin shifts the onset of CA decomposition to lower temperatures, the CA/L blends are thermally more stable than CA over the wider temperature range. The TGA results suggest all blends are compatible. These results correlate well with the glass transition temperature (Tg) data where single Tg obtained for all these blends. There is a slight decrease in Tg as the lignin wt% increase in blends, where in (70/30) composition it shows higher value than CA. There is no phase separation was found in SEM images of blends. The FTIR analysis revealed the formation of blending between CA and Lignin.
