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Synthesis and characterization of bio-based epoxy blends from renewable resource based epoxidized soybean oil as reactive diluent

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Abstract

A novel bioresin, epoxidized soybean oil was synthesized by in situ method and was characterized employing FTIR and NMR. The bioresin was blended with epoxy (DGEBA) at different ratios as reactive diluents for improved processibility and toughened nature. The composition with 20 wt% bioresin exhibited improved impact strength to the tune of 60% as compared to virgin epoxy. Fracture toughness parameters critical stress intensity factor (K IC) and critical strain energy release rate (G IC) were evaluated using single edge notch bending test and demonstrated superior enhancement in toughness. Dynamic mechanical, thermal, thermo mechanical and fracture morphological analyses have been studied for bio-based epoxy blends. Curing kinetics has been evaluated through DSC analysis to investigate the effect of bioresin on cross-linking reaction of neat epoxy with triethylenetetramine as curing agent.

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Authors and Affiliations

  1. Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering & Technology (CIPET), B/25, CNI complex, Patia, Bhubaneswar, 751024, Odisha, India

    Sushanta K. Sahoo, Smita Mohanty & Sanjay K. Nayak

Authors
  1. Sushanta K. Sahoo
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  2. Smita Mohanty
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  3. Sanjay K. Nayak
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Corresponding author

Correspondence to Smita Mohanty.

Additional information

This work was financially supported by the Department of Chemicals and Petrochemicals, Govt. of India.

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Sahoo, S.K., Mohanty, S. & Nayak, S.K. Synthesis and characterization of bio-based epoxy blends from renewable resource based epoxidized soybean oil as reactive diluent. Chin J Polym Sci 33, 137–152 (2015). https://doi.org/10.1007/s10118-015-1568-4

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  • DOI: https://doi.org/10.1007/s10118-015-1568-4

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