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In Situ Mixing Of Polyhydroxybutyrate (PHB) and Solvent Extracted Bagasse Lignin


Author(s):

Akhil Kumar Sen , Birla Institute of Technology Mesra Ranchi; Prabhat Kumar Singh, Birla Institute of Technology Mesra; Prof A S Vidyarthi, institute of Engineering and Technology, Lucknow

Keywords:

PHB, Bagasse, DSC, TGA, SEM

Abstract:

Bagasse was purified by washing with hot water and hot alkali solution separately to remove water soluble fractions. Then it was dried and lignin was extracted by high pressure auto clave using isopropanol solvent. During the extraction process PHB was added which will mix extensibly with extracted lignin and acts as a binding agent for cellulose fraction of bagasse. Fourier Transform Infra-Red (FTIR), Differential Scanning Calorimetry (DSC), Thermogravimetric analysis (TGA) and Scanning Electron Microscopy (SEM) were used to study the PHB bagasse lignin interaction and thermal stability of the composites. FTIR spectra showed the interaction of PHB with lignin and bagasse had taken place. The endothermic peak position in DSC heating thermogram of PHB and alkali washed bagasse was different from PHB and untreated bagasse composite. This is due to the interaction of bagasse lignin with PHB which changes the crystallization process. Thermal studies showed that the stability of PHB bagasse composites increased after incorporation of bagasse. More intense mixing was observed in case of SEM picture of alkali washed bagasse PHB composite. Micro injection machine was used to make tensile specimen and stress and strain behaviour of composite was higher than PHB.


Other Details:

Manuscript Id :IJSTEV2I8022
Published in :Volume : 2, Issue : 8
Publication Date: 01/03/2016
Page(s): 67-75
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