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Sustainable Electrically Conductive Bio-Based Composites via Radical-Induced Cationic Frontal Photopolymerization.

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  • معلومة اضافية
    • المصدر:
      Publisher: MDPI Country of Publication: Switzerland NLM ID: 101545357 Publication Model: Electronic Cited Medium: Internet ISSN: 2073-4360 (Electronic) Linking ISSN: 20734360 NLM ISO Abbreviation: Polymers (Basel) Subsets: PubMed not MEDLINE
    • بيانات النشر:
      Original Publication: Basel : MDPI
    • نبذة مختصرة :
      Diglycidylether of vanillyl alcohol (DGEVA), in combination with mechanically recycled carbon fibers (RCFs), was used to make, via Radical-Induced Cationic Frontal Photopolymerization (RICFP), fully sustainable and bio-based conductive composites with good electrical conductivity and consequent Joule effect proprieties. Three different fiber lengths, using three different sieve sizes during the mechanical recycling process (0.2, 0.5, and 2.0 mm), were used in five different amounts (ranging from 1 to 25 phr). The samples were first characterized by dynamic mechanical thermal analysis (DMTA), followed byelectrical conductivity and Joule heating tests. More specifically, the mechanical properties of the composites increased when increasing fiber content. Furthermore, the composites obtained with the longest fibers showed the highest electrical conductivity, reaching a maximum of 11 S/m, due to their higher aspect ratio. In this context, the temperature reached by Joule effect was directly related to the electrical conductivity, and was able to reach an average and maximum temperatures of 80 °C and 120 °C, respectively, just by applying 6 V.
    • References:
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    • Grant Information:
      101085759 european commission
    • Contributed Indexing:
      Keywords: conductive; diglycidylether of vanillyl alcohol (DGEVA); joule effect; radical-induced cationic frontal photopolymerization (RICFP); recycled carbon fibers (RCFs)
    • الموضوع:
      Date Created: 20240810 Latest Revision: 20240812
    • الموضوع:
      20240813
    • الرقم المعرف:
      PMC11314415
    • الرقم المعرف:
      10.3390/polym16152159
    • الرقم المعرف:
      39125185