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  • Chem Sci Trans., 2018, 7(2),  pp 309-318  

    DOI:10.7598/cst2018.1479

    Research Article

    Synthesis and Adhesion Study of Eco-Economical Green Adhesive for Wood Made from Soy Protein Isolates Cross-Linked with Cinnamaldehyde

  • POORVESH D. RATHOD1, KALPESH PATEL2 and JIGAR V. PATEL1*
  • 1Department of Industrial Chemistry, Institute of Science and Technology for Advanced Studies and Research (ISTAR), Vallabh Vidyanagar, Anand, Gujarat, 388120, India
    2Surface Coating and Technology Department, Institute of Science and Technology for Advanced Studies and Research (ISTAR), Vallabh Vidyanagar, Anand, Gujarat, 388120, India
  • Abstract

    Green adhesives that can be used for wood were synthesized using soy protein isolates. The denaturation of soy protein isolates was done by the alkali and cross-linked with naturally occurring cross-linker to produce cross linked network. The cross-linking reaction was confirmed by the sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis. Differential scanning calorimetry (DSC) was used to study the thermal properties of prepared adhesives. The evaluation of bonding strength of the prepared adhesives was done on Plywood substrate. Curing time was determined by bonding the plywood pieces for 12 hours and subjected to lap shear test. The study of bond strength after treatment with cold water, hot water, acid and alkali was done. The pot life of prepared adhesives were studied and found to be superior to the other available green adhesives.

    Keywords

    Soy protein isolates, Denaturation, Cross-linked network, Green Adhesives, Wood

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