Mechanical and Thermal Properties of 3D Printed Polylactic Acid Reinforced Alkaline Lignin with Epoxidized Palm Oil Bio-Composites

Nurul Amirah Abd Rahman, Hazleen Anuar, Fathilah Ali, Jonghwan Suhr

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Fused deposition modeling (FDM), through 3D printing has an advantage of using thermoplastic polymers for fabrication of natural fiber reinforced composites (NFRC). Polylactic acid (PLA) is an extensively used thermoplastic in 3D printing application for its compatibility with the processing parameters. However, the uses of unfilled PLA will produce 3D printed parts with high brittleness, hence reinforcement with lignin from oil palm empty fruit bunches (OPEFB) was considered. Lignin, one of the major components in plant, was less utilized even though contains high aromatic compound that is crucial in the polymer industry. The effect of reinforcement capability of alkaline treated lignin in PLA matrix for fabrication of sustainable 3D printing material was studied where, the obtained alkaline lignin was reinforced in the PLA with various compositions (1, 3 and 5 phr). It has been found that the presence of lignin in the PLA improved the thermal properties as well as the mechanical properties of the PLA bio-composites. Nevertheless, addition of higher lignin load of more than 1 phr contributed to lower thermal and mechanical properties. Better thermal properties were found with addition of EPO, where the maximum degradation temperature and glass transition temperature of PLA bio-composite filaments (PLAE1) have been improved to 335 °C and 59 °C, respectively, instead of 330 °C and 62 °C for unfilled PLA.

Original languageEnglish
Title of host publicationProceeding of 5th International Conference on Advances in Manufacturing and Materials Engineering - ICAMME 2022
EditorsMd. Abdul Maleque, Ahmad Zahirani Ahmad Azhar, Norshahida Sarifuddin, Sharifah Imihezri Syed Shaharuddin, Afifah Mohd Ali, Nor Farah Abdul Halim
PublisherSpringer Science and Business Media Deutschland GmbH
Pages161-167
Number of pages7
ISBN (Print)9789811995088
DOIs
StatePublished - 2023
Event5th International Conference on Advances in Manufacturing and Materials Engineering, ICAMME 2022 - KualaLumpur, Malaysia
Duration: 9 Aug 202210 Aug 2022

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference5th International Conference on Advances in Manufacturing and Materials Engineering, ICAMME 2022
Country/TerritoryMalaysia
CityKualaLumpur
Period9/08/2210/08/22

Keywords

  • 3D Printing
  • Alkaline lignin
  • Fused deposition modeling
  • Polylactic acid

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