scholarly journals Effect of chemical surface treatment on the mechanical properties of reinforced plasticized poly(lactic acid) biodegradable composites

2011 ◽  
Vol 30 (5) ◽  
pp. 381-388 ◽  
Author(s):  
Nor Azowa Ibrahim ◽  
Wan Md Zin Wan Yunus ◽  
Maizatul Othman ◽  
Khalina Abdan
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Surface Treatment ◽  
Poly Lactic Acid ◽  
Chemical Surface ◽  
Biodegradable Composites

Composites of Poly(lactic Acid) with Rice Straw Fibers Modified by Poly(butyl Acrylate)

2011 ◽  
Vol 675-677 ◽  
pp. 357-360
Author(s):  
Li Jun Qin ◽  
Jian Hui Qiu ◽  
Ming Zhu Liu ◽  
Sheng Long Ding ◽  
Liang Shao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Lactic Acid ◽  
Rice Straw ◽  
Butyl Acrylate ◽  
Interfacial Adhesion ◽  
Suspension Polymerization ◽  
Water Solution ◽  
Poly Lactic Acid ◽  
Biodegradable Composites

The modified rice straw fibers (MRSF) were prepared by suspension polymerization technique of butyl acrylate (BA) monomer and rice straw fibers (RSF) in water solution. FTIR test indicated that PBA was coated and absorbed on RSF.The biodegradable composites were prepared with the MRSF and poly(lactic acid) (PLA) by HAAKE rheometer. Mechanical properties showed that the tensile strength of PLA/MRSF composites were (W (%) =7.98%) increased by 6 MPa compared with blank sample. The possible reason was that the good interfacial adhesion between PLA and MRSF, which was demonstrated by SEM.

Effect of plasma treatment on mechanical properties of jute fiber/poly (lactic acid) biodegradable composites

2013 ◽  
Vol 22 (6) ◽  
pp. 389-399 ◽  
Author(s):  
Nam Gibeop ◽  
D.W. Lee ◽  
C.Venkata Prasad ◽  
F. Toru ◽  
Byung Sun Kim ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Plasma Treatment ◽  
Jute Fiber ◽  
Poly Lactic Acid ◽  
Biodegradable Composites

Effect of surface treatment on the physical and mechanical properties of injection molded poly(lactic acid)‐coir fiber biocomposites

2018 ◽  
Vol 40 (6) ◽  
pp. 2132-2141 ◽  
Author(s):  
M.E. González‐López ◽  
A.A. Pérez‐Fonseca ◽  
R. Manríquez‐González ◽  
M. Arellano ◽  
D. Rodrigue ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Surface Treatment ◽  
Physical And Mechanical Properties ◽  
Poly Lactic Acid ◽  
Coir Fiber ◽  
Injection Molded ◽  
Effect Of Surface

Effect of surface treatments of jute fibers on the microstructural and mechanical responses of poly(lactic acid)/jute fiber biocomposites

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 73373-73382 ◽  
Author(s):  
Mohammad Tahir Zafar ◽  
Saurindra Nath Maiti ◽  
Anup Kumar Ghosh
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Surface Treatment ◽  
Surface Treatments ◽  
Jute Fiber ◽  
Poly Lactic Acid ◽  
Interface Adhesion ◽  
Mechanical Responses ◽  
Jute Fibers ◽  
Effect Of Surface

The effect of surface treatment of jute fibers on matrix/fiber interface adhesion in PLA/jute fiber biocomposites was explored in terms of mechanical, morphological, thermal and thermo mechanical properties.

Effect of Surface Treatment on Interfacial and Properties of Water Hyacinth Fiber Reinforced Poly(Lactic Acid) Composites

2012 ◽  
Vol 463-464 ◽  
pp. 449-452
Author(s):  
Achanai Buasri ◽  
Nattawut Chaiyut ◽  
Teerut Petsungwan ◽  
Yutthakarn Boonyuen ◽  
Sansana Moonmanee
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Surface Treatment ◽  
Water Hyacinth ◽  
Testing Machine ◽  
Poly Lactic Acid ◽  
Mechanical And Thermal Properties ◽  
Weight Content ◽  
Uniform Dispersion ◽  
Water Hyacinth Fiber

Surface treatment of water hyacinth fiber (WHF) was investigated as a mean of improving interfacial of WHF reinforced poly (lactic acid) (PLA) composites. Fiber was treated with sodium hydroxide 15% w/v at 85 °C for 3 h. The composite materials were processed using internal melt mixer and compression molding machine. The weight content of fibervaried from 5 to 25% w/w.The mechanical and thermal properties of pure PLA and composites were compared using universal testing machine, differential scanning calorimetry (DSC) and thermogravimetricanalysis (TGA).The best mechanical properties of composite were achieved at fiber mass content of 20% w/w in this study, which showed an increase oftensile modulus by 21.6% compared to those of pure PLA. The high tensile modulus but low elongation at break indicates that this material exhibits brittle behavior. The results of TGA andDSC experiments indicated that the addition of fiber enhanced the thermal stability of the composites and WHF can act as a nucleating agent for PLA crystallites. The morphology, evaluated by scanning electron microscopy (SEM), indicated that a uniform dispersion of fiber in the PLA matrix existed. Alkali treatment of fiber increased the interfacial bonding strength and the wettability of the fiber by PLA leading to the enhancement in mechanical properties of the composites.

Properties of Poly(Lactic Acid) Filled with Cellulose-Graft-Polystyrene

2020 ◽  
Vol 845 ◽  
pp. 51-56
Author(s):  
Wimala Karintrithip ◽  
Kawee Srikulkit
Keyword(s):  
Mechanical Properties ◽  
Fourier Transform ◽  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Ftir Analysis ◽  
Thermal And Mechanical Properties ◽  
Slight Improvement ◽  
Cellulose I ◽  
Biodegradable Composites ◽  
The Matrix

This experiment was conducted to investigate thermal and mechanical properties of the biodegradable composites based on Poly (lactic acid) (PLA) incorporated with cellulose-graft-polystyrene (cellulose-g-PS) at 1, 3, 5 and 10 wt%. The modification of cellulose filler was confirmed by the Td shifting of thermogravimetric analysis (TGA) thermogram from 334 to 348 °C and characteristic peaks corresponding to the styrene benzylic ring obtained from fourier-transform infrared spectroscopy (FTIR) analysis. The slight improvement of PLA properties with addition of 1 wt% of cellulose-g-PS composite probably was due to the good interaction and compatibility between filler and the matrix of polymer.

Conductivity and mechanical properties of carbon black-reinforced poly(lactic acid) (PLA/CB) composites

2021 ◽  
Author(s):  
Jipeng Guo ◽  
Chi-Hui Tsou ◽  
Yongqi Yu ◽  
Chin-San Wu ◽  
Xuemei Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Carbon Black ◽  
Poly Lactic Acid

scholarly journals A Review: Research Progress in Modification of Poly (Lactic Acid) by Lignin and Cellulose

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 776
Author(s):  
Sixiang Zhai ◽  
Qingying Liu ◽  
Yuelong Zhao ◽  
Hui Sun ◽  
Biao Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Composite Materials ◽  
Crystallization Rate ◽  
Research Progress ◽  
Poly Lactic Acid ◽  
Green Composite ◽  
Materials Development ◽  
Research Attention ◽  
Biomass Components

With the depletion of petroleum energy, the possibility of prices of petroleum-based materials increasing, and increased environmental awareness, biodegradable materials as a kind of green alternative have attracted more and more research attention. In this context, poly (lactic acid) has shown a unique combination of properties such as nontoxicity, biodegradability, biocompatibility, and good workability. However, examples of its known drawbacks include poor tensile strength, low elongation at break, poor thermal properties, and low crystallization rate. Lignocellulosic materials such as lignin and cellulose have excellent biodegradability and mechanical properties. Compounding such biomass components with poly (lactic acid) is expected to prepare green composite materials with improved properties of poly (lactic acid). This paper is aimed at summarizing the research progress of modification of poly (lactic acid) with lignin and cellulose made in in recent years, with emphasis on effects of lignin and cellulose on mechanical properties, thermal stability and crystallinity on poly (lactic acid) composite materials. Development of poly (lactic acid) composite materials in this respect is forecasted.

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