Evaluation of the compatibility of organosolv lignin-graphene nanoplatelets with photo-curable polyurethane in stereolithography 3D printing

Fathirrahman Ibrahim, Denesh Mohan, Mohd Shaiful Sajab, Saiful Bahari Bakarudin, Hatika Kaco

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, lignin has been extracted from oil palm empty fruit bunch (EFB) fibers via an organosolv process. The organosolv lignin obtained was defined by the presence of hydroxyl-containing molecules, such as guaiacyl and syringyl, and by the presence of phenolic molecules in lignin. Subsequently, the extracted organosolv lignin and graphene nanoplatelets (GNP) were utilized as filler and reinforcement in photo-curable polyurethane (PU), which is used in stereolithography 3D printing. The compatibility as well as the characteristic and structural changes of the composite were identified through the mechanical properties of the 3D-printed composites. Furthermore, the tensile strength of the composited lignin and graphene shows significant improvement as high as 27%. The hardness of the photo-curable PU composites measured by nanoindentation exhibited an enormous improvement for 0.6% of lignin-graphene at 92.49 MPa with 238% increment when compared with unmodified PU.

Original languageEnglish
Article number1544
JournalPolymers
Volume11
Issue number10
DOIs
Publication statusPublished - 1 Oct 2019

Fingerprint

Stereolithography
Polyurethanes
Graphite
Lignin
Graphene
Printing
Composite materials
Molecules
Palm oil
Nanoindentation
Fruits
Hydroxyl Radical
Fillers
Reinforcement
Tensile strength
Hardness
Mechanical properties
Fibers

Keywords

  • 3D printing
  • Composites
  • DLP
  • Lignocellulose
  • Nanoindentation

ASJC Scopus subject areas

  • Chemistry(all)
  • Polymers and Plastics

Cite this

Evaluation of the compatibility of organosolv lignin-graphene nanoplatelets with photo-curable polyurethane in stereolithography 3D printing. / Ibrahim, Fathirrahman; Mohan, Denesh; Sajab, Mohd Shaiful; Bakarudin, Saiful Bahari; Kaco, Hatika.

In: Polymers, Vol. 11, No. 10, 1544, 01.10.2019.

Research output: Contribution to journalArticle

Ibrahim, Fathirrahman ; Mohan, Denesh ; Sajab, Mohd Shaiful ; Bakarudin, Saiful Bahari ; Kaco, Hatika. / Evaluation of the compatibility of organosolv lignin-graphene nanoplatelets with photo-curable polyurethane in stereolithography 3D printing. In: Polymers. 2019 ; Vol. 11, No. 10.
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