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Application of Response Surface Methodology to Optimize the Reaction Parameters for Grafting of Cellulosic Fiber

  • Aanchal MittalEmail author
  • Sangeeta Garg
  • Shailendra Bajpai
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 30)

Abstract

In this work, chemical modification of barley husk (BH) was done with palmitic acid to render its hydrophobic property. Optimization of the reaction parameters for grafting of barley husk was performed using response surface methodology (RSM) coupled with central composite design (CCD). Different process parameters were optimized at three levels: reaction time (2.5–5 h), reaction temperature (35–55 °C), solvent ratio (0, 1:3, 1:1, 3:1, 1), and monomer concentration (4.75–11.09 mol/L × 10−3). Prediction of the optimum reaction parameters was done by producing a quadratic polynomial equation in order to find the maximum value of % graft yield. The adequacy of the regression modeling was tested by using analysis of variance (ANOVA). It was observed that the most effective parameter for chemical modification of barley husk was reaction temperature. The maximum value of % graft yield was 41.53% at reaction time 4.37 h; reaction temperature 40.02 °C; solvent ratio 3:1; and monomer concentration 9.48 mol/L × 10−3. The characterization of the modified barley husk was done by using Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). Surface micrographs of grafted barley husk showed that surface of barley husk became rough after grafting of palmitic acid over the cellulosic backbone.

Keywords

Grafting Optimization Response surface methodology Regression modeling Infrared spectroscopy 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Aanchal Mittal
    • 1
    Email author
  • Sangeeta Garg
    • 1
  • Shailendra Bajpai
    • 1
  1. 1.Department of Chemical EngineeringDr. B. R. Ambedkar National Institute of TechnologyJalandharIndia

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