Tensile properties of kenaf fiber and corn husk flour reinforced poly(lactic acid) hybrid bio-composites: Role of aspect ratio of natural fibers

Kwon, Hyeokjin; Sunthornvarabhas, Jackapon; Park, Ji Won; Lee, Jung-Hun; Kim, Hyun‐Joong; Piyachomkwan, Kuakoon; Sriroth, Klanarong; Cho, Donghwan

doi:10.1016/j.compositesb.2013.08.003

Cited by 109 publications

(45 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2, strength suffers a slight decrease with addition of SCG, which is typical of composites due to stress concentration phenomena, since the SCG particle is not perfectly adhered with the PP matrix. It is important to remark that the real reinforcing effect is directly related to the aspect ratio of the filler as described by some authors [25]. A reinforcing effect can be obtained for aspect ratios higher than 6 which enable preferential direction and/or orientation which can have a positive effect on mechanical performance due to particle alignment.…”

Section: Figurementioning

confidence: 99%

Green composites based on polypropylene matrix and hydrophobized spend coffee ground (SCG) powder

Garcia‐Garcia

Carbonell

Samper

et al. 2015

Composites Part B: Engineering

146

View full text Add to dashboard Cite

Green composites were prepared with polypropylene matrix and 20 wt.% spent coffee ground (SCG) powder for uses as a wood plastic composite (WPC). The effects of hydrophobic treatment with palmitoyl chloride on SCG powder is compared with conventional surface treatment based on silanization with (3-glycidyloxypropyl) trimethoxysilane and the use of a maleated copolymer compatibilizer (polypropylene-graft-maleic anhydride, PP-g-MA) in terms of mechanical properties, morphology, thermal properties and water uptake. Composites were previously mixed in a twin-screw co-rotating extruder and subsequently subjected to injection moulding. The comparative effect of the different surface treatments and or compatibilizers on mechanical performance was studied by flexural, impact tests and dynamic mechanical thermal analysis (DMTA-torsion); in addition, the stabilizing effect of SCG was revealed by differential scanning calorimetry (DSC) and thermogravymetric analysis (TGA). As one of the main drawbacks of wood plastic composites and natural fiber reinforced plastics is the moisture gain, water uptake tests were carried out in order to quantify the effectiveness of the hydrophobization process with palmitoyl chloride. Results show a slight increase in flexural modulus for composites with both untreated and treated/compatibilized SCG powder (20 wt.%).As expected, thermal stability is improved as indicated by an increase of more than 8% in the

show abstract

Section: Figurementioning

confidence: 99%

Green composites based on polypropylene matrix and hydrophobized spend coffee ground (SCG) powder

Garcia‐Garcia

Carbonell

Samper

et al. 2015

Composites Part B: Engineering

146

View full text Add to dashboard Cite

show abstract

“…One of them is use of high aspect ratio fiber or long fiber to increase surface area contacting polymer. [9] Other method is increase interfacial adhesion between cellulose fiber and polymer matrix. [10][11][12] In order to enhance interfacial adhesion property of cellulose fiber, the fiber surface should free from impurities such as lignins and extractives.…”

Section: Introductionmentioning

confidence: 99%

Modification of nano-kenaf surface with maleic anhydride grafted polypropylene upon improved mechanical properties of polypropylene composite

Kim

2015

Composite Interfaces

View full text Add to dashboard Cite

To cite this article: Kwang-Jea Kim (2015): Modification of nano-kenaf surface with maleic anhydride grafted polypropylene upon improved mechanical properties of polypropylene composite, Composite Interfaces,The surface of nano-kenaf fiber is modified with maleic anhydride grafted polypropylene (MA-g-PP) and added into PP and the mechanical properties and the flow property of the composite are investigated. The addition of MA-g-PP in nano-kenaf/PP composite increases the tensile strength, the elongation%, and the impact strength (I.S.), while it decreases the flow property (melt flow index) compared to without MA-g-PP composite (nano-kenaf/PP). The scanning electron microscope photograph shows it also increases interfacial adhesion between nano-kenaf and PP matrix. Regardless of MA-g-PP, nano-kenaf fibers shows better adhesion with PP compared to micron-kenaf fibers. Addition of MA-g-PP further improved interfacial adhesion between nano-kenaf surface and PP matrix compared to without MA-g-PP nano-kenaf compound. The addition of MA-g-PP apparently improves the interfacial adhesion between nano-kenaf surface and PP by formation of 3-dimensional network structure.

show abstract

“…To improve the properties of kenaf composites, many modification efforts were conducted, such as, alkaline treatment [10], rice-washed water treatment [11], using fiber/high-density polyethylene [12], etc. Utilizing an optimal kenaf fiber ratio to achieve the highest tensile property of the composites [13]. The natural fibers, hemp yarn, were used to make tubes [14].…”

Section: Introductionmentioning

confidence: 99%

Dual-functional natural-fiber reinforced composites by incorporating magnetite

Xia

Wang

Dong

et al. 2016

Composites Part B: Engineering

View full text Add to dashboard Cite

Natural fiber reinforced composites with dual-functional properties, including electromagnetic shielding and paramagnetic functions, as well as improved water-resistant property, were fabricated using vacuum assisted resin transfer molding (VARTM) process. Magnetite particles were firstly mixed with kenaf fibers to form a mat, followed by resin intrusion and compression for the composite fabrication. The obtained kenaf fiber/magnetite/polyester composites were endowed with electromagnetic shielding and paramagnetic properties, without compromising the mechanical properties. When 35.2% magnetite was incorporated into the composites, the electromagnetic interference shielding effectiveness reached 79.2% with the range 8 to 12 GHz, and the saturation magnetization was 29.2 emu g -1 . The 24-hour thickness swelling and water absorption of the composites after introducing magnetite were drastically reduced from 19.7% and 18.3% to 2.4% and 2.6%, counting as the decreases of 87.6% and 73.4%, respectively. It was indicated that the water resistance of the composite was improved significantly.

show abstract

Tensile properties of kenaf fiber and corn husk flour reinforced poly(lactic acid) hybrid bio-composites: Role of aspect ratio of natural fibers

Cited by 109 publications

References 18 publications

Green composites based on polypropylene matrix and hydrophobized spend coffee ground (SCG) powder

Green composites based on polypropylene matrix and hydrophobized spend coffee ground (SCG) powder

Modification of nano-kenaf surface with maleic anhydride grafted polypropylene upon improved mechanical properties of polypropylene composite

Dual-functional natural-fiber reinforced composites by incorporating magnetite

Contact Info

Product

Resources

About