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Liquefaction of Banana Pseudo-stem and Preparation of Polyurethane Adhesive from Liquefied Products

  • Wei Zhou (周威)
  • Wenxing Fu
  • Yucang Zhang (张玉苍)Email author
Advanced Materials
  • 4 Downloads

Abstract

Banana pseudo-stem was liquefied in the mixture of polyhydric alcohols of polyethylene glycol (PEG400) and glycerol. Hydroxyl value of liquefied products ranged from 294.8 to 370.2 mg KOH/g and \({\bar M_n}\) was about 430. Liquefied products (LBPP) could be used as raw materials for polyurethane by reacting with 4, 4’-diphenylmethane diisocyanate (4, 4’-MDI) and PEG400 to synthesize liquefied product-based polyurethane (LBPP-PU) adhesive. To analyze in depth the creation of urethane linkage among LBPP, PEG400 and 4, 4’-MDI, factors which had effects on the residue content were all investigated. They were characterized by FT-IR and TG. The shear strength of LBPP-PU adhesive was improved when decreasing the percentage of the substitution of PEG400 by LBPP. The adhesive strength was obtained from T-peel of aspen/polyurethane adhesive joints, and the maximum lap shear strength (4.40 MPa) was obtained when 16.70% of LBPP was added to the LBPP & PEG400 system.

Key words

liquefaction banana pseudo-stem polyhydric alcohols polyurethane adhesive 

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Copyright information

© Wuhan University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Wei Zhou (周威)
    • 1
  • Wenxing Fu
    • 1
  • Yucang Zhang (张玉苍)
    • 1
    Email author
  1. 1.College of Materials and Chemical EngineeringHainan UniversityHaikouChina

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