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Study of Nano-Mechanical Performance of Pretreated Natural Fiber in LDPE Composite for Packaging Applications
- Source :
- Materials, Volume 13, Issue 21, Materials, 13(21), Materials, Vol 13, Iss 4977, p 4977 (2020)
- Publication Year :
- 2020
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2020.
-
Abstract
- In this work, the effects of chemical pretreatment and different fiber loadings on mechanical properties of the composites at the sub-micron scale were studied through nanoindentation. The composites were prepared by incorporating choline chloride (ChCl) pretreated rice husk waste (RHW) in low-density polyethylene (LDPE) using melt processing, followed by a thermal press technique. Nanoindentation experiments with quasi continuous stiffness mode (QCSM) were performed on the surface of produced composites with varying content of pretreated RHW (i.e., 10, 15, and 20 wt.%). Elastic modulus, hardness, and creep properties of fabricated composites were measured as a function of contact depth. The results confirmed the appreciable changes in hardness, elastic modulus, and creep rate of the composites. Compliance curves indicated that the composite having 20 wt.% of pretreated RHW loading was harder compared to that of the pure LDPE and other composite samples. The values of elastic modulus and hardness of the composite containing 20 wt.% pretreated RHW were increased by 4.1% and 24% as compared to that of the pure LDPE, respectively. The creep rate of 42.65 nm/s and change in depth of 650.42 nm were also noted for the composite with RHW loading of 20 wt.%, which showed the substantial effect of holding time at an applied peak load of 100 mN. We believe that the developed composite could be a promising biodegradable packaging material due to its good tribo-mechanical performance.
- Subjects :
- Materials science
biocomposite
nanoindentation
Composite number
02 engineering and technology
010402 general chemistry
lcsh:Technology
01 natural sciences
Article
chemistry.chemical_compound
General Materials Science
Composite material
lcsh:Microscopy
Elastic modulus
Natural fiber
lignocellulosic biomass
lcsh:QC120-168.85
lcsh:QH201-278.5
lcsh:T
Nanoindentation
Polyethylene
pretreatment
021001 nanoscience & nanotechnology
hardness
0104 chemical sciences
Low-density polyethylene
chemistry
Creep
lcsh:TA1-2040
modulus
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
Biocomposite
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
lcsh:TK1-9971
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....67cac6290395ed768f0a120161986e5b
- Full Text :
- https://doi.org/10.3390/ma13214977