Dispersion of soybean flour in dicyclopentadiene resin for thermoset composite using the ultrasonic-assisted method

Fei Ma, Yuehong Zhang*, Vijay Kumar Thakur*, Leipeng Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Thermosetting composites based on dicyclopentadiene (DCPD) in the presence of Grubbs' catalyst and soybean flour were prepared by ring-opening metathesis polymerization. Soybean flour/DCPD suspensions were sonicated to enhance the dispersion degree before adding catalyst. The curing extent, thermal-mechanical properties, morphology and thermal stability of the cured soybean flour/DCPD composites were systematically investigated using Soxhlet extraction, DSC, DMA, TMA, tensile test, SEM, and TGA. The results showed that the tensile strength of the soybean flour/DCPD composites increased from 60.7 MPa to 75.8 MPa with the increase of soybean flour loading from 0% to 25%, and the Tg obtained from DMA also showed an increasing trend from 129.4°C to 155.1°C. Overall, the introduction of soybean flour into DCPD resin improved the thermal-mechanical properties of the composite and offered decreased cost and enhanced bio-based content.

Original languageEnglish
Pages (from-to)7258-7265
Number of pages8
JournalPolymer Composites
Volume43
Issue number10
Early online date1 Jul 2022
DOIs
Publication statusPrint publication - Oct 2022

Bibliographical note


Publisher Copyright:
© 2022 Society of Plastics Engineers.

Keywords

  • dicyclopentadiene
  • soybean flour
  • sustainability
  • thermoset composite
  • ultrasonic method

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