Development of a Plastic-Coated Natural Fibre Reinforcement for Geotechnical Applications

2021 ◽  
pp. 589-597
Author(s):  
K. S. V. Durga Prasad ◽  
Anjan Patel
Keyword(s):  
Natural Fibre ◽  
Fibre Reinforcement

scholarly journals Effects of water absorption on the mechanical properties of hybrid natural fibre/phenol formaldehyde composites

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sekar Sanjeevi ◽  
Vigneshwaran Shanmugam ◽  
Suresh Kumar ◽  
Velmurugan Ganesan ◽  
Gabriel Sas ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Water Absorption ◽  
Hybrid Composites ◽  
Phenol Formaldehyde ◽  
Natural Fibre ◽  
The Other ◽  
Fibre Reinforcement ◽  
Dry Conditions

AbstractThis investigation is carried out to understand the effects of water absorption on the mechanical properties of hybrid phenol formaldehyde (PF) composite fabricated with Areca Fine Fibres (AFFs) and Calotropis Gigantea Fibre (CGF). Hybrid CGF/AFF/PF composites were manufactured using the hand layup technique at varying weight percentages of fibre reinforcement (25, 35 and 45%). Hybrid composite having 35 wt.% showed better mechanical properties (tensile strength ca. 59 MPa, flexural strength ca. 73 MPa and impact strength 1.43 kJ/m2) under wet and dry conditions as compared to the other hybrid composites. In general, the inclusion of the fibres enhanced the mechanical properties of neat PF. Increase in the fibre content increased the water absorption, however, after 120 h of immersion, all the composites attained an equilibrium state.

scholarly journals The effect of natural fibre reinforcement on polyurethane composite foams – A review

2021 ◽  
Vol 11 ◽  
pp. e00722
Author(s):  
Charles Kuranchie ◽  
Abu Yaya ◽  
Yaw Delali Bensah
Keyword(s):  
Natural Fibre ◽  
Fibre Reinforcement ◽  
Polyurethane Composite ◽  
Composite Foams

Effect of natural fibre reinforcement on the sound and vibration damping properties of bio-composites compression moulded by nonwoven mats

2019 ◽  
Vol 13 ◽  
pp. 12-17 ◽  
Author(s):  
Jin Zhang ◽  
Akbar Afaghi Khatibi ◽  
Erwan Castanet ◽  
Thomas Baum ◽  
Zahra Komeily-Nia ◽  
...  
Keyword(s):  
Natural Fibre ◽  
Vibration Damping ◽  
Fibre Reinforcement ◽  
Damping Properties ◽  
Nonwoven Mats

scholarly journals Tensile Properties of Pandanus Atrocarpus based Composites

1970 ◽  
Vol 1 (1) ◽  
Author(s):  
Hoo Tien Nicholas Kuan ◽  
Meng Chuen Lee
Keyword(s):  
Tensile Properties ◽  
Composite Laminates ◽  
Volume Fraction ◽  
Tensile Tests ◽  
Natural Fibre ◽  
Engineering Industry ◽  
Strength Increase ◽  
Fibre Reinforcement ◽  
Compression Moulding ◽  
Composite Fabrication

Pandanus atrocarpus, or locally known as mengkuang plant is likely to be potential natural fibre reinforcement in composite. Both the Pandanus leaves, and fibres extracted from the Pandanus leaves were used in composite fabrication. Fibres were extracted from Pandanus leaves with water retting process. Pandanus composites were laminated using compression moulding method. The tensile properties of composite laminates based on lamination of Pandanus leaf- and extracted Pandanus fibre-reinforced polyethylene were investigated. Tensile tests have shown that composite laminates based on extracted Pandanus fibre reinforced polyethylene were more superior than using the Pandanus leaf itself without extracting its fibre. Tests exhibited that increasing the volume fraction of Pandanus fibre resulted in strength increase. This suggests that Pandanus fibre- based composites could offer a range of mechanical properties for use in the engineering industry.

Mechanical performance of hybrid woven jute–roselle-reinforced polyester composites

2019 ◽  
Vol 27 (7) ◽  
pp. 407-418 ◽  
Author(s):  
Mohammad Hazim Mohamad Hamdan ◽  
Januar Parlaungan Siregar ◽  
Sabu Thomas ◽  
Maya John Jacob ◽  
Jamiluddin Jaafar ◽  
...  
Keyword(s):  
Composite Plate ◽  
Synthetic Fibre ◽  
Mechanical Performance ◽  
Flexural Modulus ◽  
Natural Fibre ◽  
Impact Testing ◽  
Void Content ◽  
Fibre Reinforcement ◽  
Pull Out ◽  
The Impact

Natural fibre acts as a significant replacement for the known synthetic fibre that tends to cause critical environmental issues. Hence, the hybridization of natural fibre reinforcement has been considered as one of the strategies in reducing synthetic fibre applications. The current research was conducted to determine the effect of layering sequence on the mechanical performance of hybrid woven jute–roselle. In addition, eight different types of composite plate that consisted of single and hybrid were fabricated through the implementation of hand lay-up method. In this case, each composite plate had to undergo the tensile, flexural and impact testing in order to acquire the effect of varying layering sequences. The results of the present study showed that the hybridization of jute–roselle provided was significant, especially on the flexural and impact performance. Furthermore, the tensile strength and modulus were higher on the JRRJ sample and maximum flexural strength also managed to be recorded by the same sample. However, the maximum flexural modulus only managed to be recorded in sample RRJJ. Meanwhile, the impact testing revealed that the composite plate of sample JJRR had the highest impact strength. The void content for all the samples was acceptable because all of them were less than 7%. Finally, scanning electron microscopic image illustrated that the fractured surfaced of composite sample was typically smooth with less formation of void and fibre pull-out.

Mechanical characterization and damage events of flax fabric-reinforced biopolymer composites

2019 ◽  
Vol 28 (8-9) ◽  
pp. 631-644
Author(s):  
Abderrazak Chilali ◽  
Mustapha Assarar ◽  
Wajdi Zouari ◽  
Hocine Kebir ◽  
Rezak Ayad
Keyword(s):  
Tensile Modulus ◽  
Tensile Tests ◽  
Natural Fibre ◽  
Poly Lactic Acid ◽  
Fibre Reinforcement ◽  
Butylene Succinate ◽  
Environment Friendly ◽  
Biodegradable Composite ◽  
Biodegradable Poly ◽  
Biopolymer Composites

Natural fibre-reinforced biopolymer composites are of special interest because they are entirely bioresourced, recyclable and biodegradable. Poly(lactic acid) (PLA), poly(hydroxybutyrate- co-hydroxyvalerate) (PHBV) and poly(butylene succinate) (PBS) are among the most known environment-friendly biodegradable thermoplastics. Unfortunately, they present unbalanced mechanical characteristics when they are taken separately. The aim of this work is to overcome this problem using a blending process accompanied with fibre reinforcement. For this purpose, entirely biodegradable composite materials were fabricated and characterized. These biocomposites are based on two different ternary PLA/PHBV/PBS blends reinforced with twill flax fabrics and fabricated using extrusion and film-stacking techniques. Monotonic and cyclic load–unload tensile tests followed by acoustic emission and scanning electron microscopy observations were performed. In particular, the obtained biocomposites present interesting mechanical properties with a tensile modulus of 20 GPa and an ultimate tensile strength of 110 MPa.

Estimation of Mechanical and Tribological Properties of Epoxy-Based Green Composites

2016 ◽  
pp. 96-124 ◽  
Author(s):  
Supriyo Roy ◽  
Sumit Bhowmik ◽  
J. Paulo Davim ◽  
Kaushik Kumar
Keyword(s):  
Epoxy Composite ◽  
Low Cost ◽  
Natural Fibre ◽  
Wood Dust ◽  
Fibre Reinforcement ◽  
Green Composite ◽  
Mechanical And Tribological Properties ◽  
Specific Strength ◽  
Small Density ◽  
Coefficient Measurement

Composites based on natural fibre reinforcement have generated wide research and engineering interest in the last few decades due to their small density, high specific strength, low cost, light weight, recyclability and biodegradability and has earned a special category of ‘green composite'. Here, in our proposed research, wood dust reinforced epoxy composite was processed with different % filler weight primarily. For this, natural filler based epoxy composite from wood dust is developed and its mechanical behaviour, including Tensile, Flexural, Density etc., under various testing conditions and % of filler weight were studied. These samples were simultaneously tested for abrasive wear and friction coefficient measurement. Microstructure of the composites was studied to analyze the distribution of the filler in the epoxy matrix change using scanning electron microscopy.

Durability of FRC-Materials

1990 ◽  
Vol 211 ◽  
Author(s):  
Erik Stoklund Larsen ◽  
Herbert Krenchel
Keyword(s):  
Composite Material ◽  
Fracture Energy ◽  
Steel Fibre ◽  
Natural Fibre ◽  
Climatic Conditions ◽  
Test Series ◽  
Fibre Reinforcement ◽  
Sisal Fibre ◽  
Building Research Institute ◽  
Asbestos Cement

AbstractAsbestos cement was the first type of FRC-material that was ever made. It consisted of neat, hardened Portland cement reinforced with asbestos fibres (Vt - 7 vol-%). The most outstanding and valuable property of a high quality asbestos cement was the highly improved durability of this composite material in comparison to what would have been the case, if no fibres had been added or the fibre reinforcement of this extremely brittle matrix had been carried out incorrectly.This paper describes an analysis of the variation in time of the fracture energy, GF, of different types of FRC-material exposed to various climatic conditions.The following types of fibres were examined: steel fibre, ar-glass fibre, synthetic fibre (polypropylene) and natural fibre (sisal fibre and paper pulp cellulose).The climatic exposure conditions were natural out-door weathering or laboratory tests in a special weather-o-meter. Three test series were carried out at the Danish Building Research Institute. The results from these tests have been compared to results from five test series taken from the literature (ar-glass-, steel-, polypropylen-, sisal-fibres and neat concrete).It is concluded that natural and glass fibres are losing strength and ductility in a cementitious matrix. This results in a drastically reduced fracture energy of the composite material over the years. In the worst cases practically no fibre effect is left after some ten years of normal out-door exposure.For the best types of fibres examined (steel fibre, high tenacity, high bond polypropylene and combinations of these two types) the ductility and fracture energy of the composites are increasing significantly even after very long time of exposure.

scholarly journals Vane shear strength of bio-improved sand reinforced with natural fibre

2019 ◽  
Vol 92 ◽  
pp. 12004
Author(s):  
Mohsin Usman Qureshi ◽  
Abdulsalam Al-Hilly ◽  
Ola Al-Zeidi ◽  
Ashwaq Al-Barrami ◽  
Ahed Al-Jabri
Keyword(s):  
Xanthan Gum ◽  
Date Palm ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Qualitative Description ◽  
Palm Tree ◽  
Fibre Reinforcement ◽  
Desert Sand ◽  
Strength Tests ◽  
Recent Developments

In the recent developments, bio-improvement has considerably enhanced the geotechnical properties and reduced degradation of loose desert sand without the environmental concerns. However, the effect of bio-improvement on sand weakens due to water submergence. Therefore, it is necessary to explore the techniques for retaining the strength of bio-improved sand in water submerged state. So, this paper reports the geotechnical performance of submerged bio-improved sand reinforced by discrete natural fibres. The desert sand sampled from Al-Sharqia Desert of Oman, bio-improved by xanthan gum and reinforced by discrete natural fibres obtained from date palm tree. Date palm fibres having a diameter less than 0.2mm and length 1cm were employed for sand reinforcement. Vane shear tests and standard compaction tests were performed on specimens having different mix ratios of sand-xanthan gum with and without natural fibres. The qualitative description of bio-improvement and fibre reinforcement effect on the desert sand is also presented as the photomicrographs taken by field emission scanning electron microscope. According to the results of strength tests at higher moisture content state, the discrete fibre reinforcement has enhanced the geotechnical performance of sand improved at lower concentrations.

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