The Improvement of Mechanical Properties, Thermal Stability, and Water Absorption Resistance of an Eco-Friendly PLA/Kenaf Biocomposite Using Acetylation

Autor: William Tai Yin Tze, Young Kyu Lee, Hueck Jin Kwon, Taek Jun Chung, Hyunji Lee, Ji-Won Park, Hyun-Joong Kim
Rok vydání: 2018
Předmět:
Absorption of water
Materials science
surface treatments
Environmental pollution
02 engineering and technology
fibers
010402 general chemistry
lcsh:Technology
01 natural sciences
lcsh:Chemistry
chemistry.chemical_compound
Polylactic acid
General Materials Science
Thermal stability
Fiber
Composite material
interface
interfacial strength
extrusion
lcsh:QH301-705.5
Instrumentation
Fluid Flow and Transfer Processes
biology
lcsh:T
Process Chemistry and Technology
General Engineering
021001 nanoscience & nanotechnology
biology.organism_classification
Environmentally friendly
lcsh:QC1-999
Kenaf
0104 chemical sciences
Computer Science Applications
lcsh:Biology (General)
lcsh:QD1-999
chemistry
lcsh:TA1-2040
Biocomposite
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
lcsh:Physics
Zdroj: Applied Sciences, Vol 8, Iss 3, p 376 (2018)
Applied Sciences; Volume 8; Issue 3; Pages: 376
ISSN: 2076-3417
DOI: 10.3390/app8030376
Popis: As a result of industrialization and environmental pollution, increasing importance is being given to eco-friendly materials and technology. In particular, eco-friendly biocomposites using polylactic acid (PLA) have attracted great interest. In this work, fiber-reinforced composites were investigated in order to enhance the mechanical properties and improve the economic efficiency of PLA. Specifically, composite materials using natural fibers, such as kenaf were actively studied. In the utilization of natural fibers, such as kenaf, the treatment method for increasing the bonding force between the fiber and the matrix is very important. In this study, the surface of kenaf was treated using an acetylation technique, and the PLA composite material was prepared using surface-treated kenaf. Changes in fiber properties were observed with acetylation treatment time. The mechanical properties, thermal stability, and water absorption resistance of the acetylated kenaf and PLA composites prepared for each condition were evaluated. Finally, was concluded that acetylation treatment is effective for improving the performance of PLA/kenaf composites. This behavior was found to relate to the surface cleaning of acetylated kanaf, in addition to the efficient modification of the hydrophilic characteristics of kenaf.
Databáze: OpenAIRE
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