Characterization of mechanical properties on natural fibre reinforced polymer using kenaf and polyurethane

2019 ◽  
Author(s):  
M. R. Isa ◽  
A. B. Suhaimi ◽  
O. S. Zaroog ◽  
N. M. Zahari ◽  
S. N. Sulaiman ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Natural Fibre ◽  
Reinforced Polymer ◽  
Fibre Reinforced Polymer

scholarly journals A Review on Mechanical Properties of Natural Fibre Reinforced Polymer Composites under Various Strain Rates

2021 ◽  
Vol 5 (5) ◽  
pp. 130
Author(s):  
Tan Ke Khieng ◽  
Sujan Debnath ◽  
Ernest Ting Chaw Liang ◽  
Mahmood Anwar ◽  
Alokesh Pramanik ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Strain Rate ◽  
Polymer Composites ◽  
Stress Transfer ◽  
Natural Fibre ◽  
Transfer Efficiency ◽  
Strain Rates ◽  
Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Fibre Matrix

With the lightning speed of technological evolution, the demand for high performance yet sustainable natural fibres reinforced polymer composites (NFPCs) are rising. Especially a mechanically competent NFPCs under various loading conditions are growing day by day. However, the polymers mechanical properties are strain-rate dependent due to their viscoelastic nature. Especially for natural fibre reinforced polymer composites (NFPCs) which the involvement of filler has caused rather complex failure mechanisms under different strain rates. Moreover, some uneven micro-sized natural fibres such as bagasse, coir and wood were found often resulting in micro-cracks and voids formation in composites. This paper provides an overview of recent research on the mechanical properties of NFPCs under various loading conditions-different form (tensile, compression, bending) and different strain rates. The literature on characterisation techniques toward different strain rates, composite failure behaviours and current challenges are summarised which have led to the notion of future study trend. The strength of NFPCs is generally found grow proportionally with the strain rate up to a certain degree depending on the fibre-matrix stress-transfer efficiency. The failure modes such as embrittlement and fibre-matrix debonding were often encountered at higher strain rates. The natural filler properties, amount, sizes and polymer matrix types are found to be few key factors affecting the performances of composites under various strain rates whereby optimally adjust these factors could maximise the fibre-matrix stress-transfer efficiency and led to performance increases under various loading strain rates.

The Effects of Graphene and Flame Retardants on Flammability and Mechanical Properties of Natural Fibre Reinforced Polymer Composites

2016 ◽  
Vol 701 ◽  
pp. 286-290 ◽  
Author(s):  
Pooria Khalili ◽  
Kim Yeow Tshai ◽  
Ing Kong ◽  
Chin Hooi Yeoh
Keyword(s):  
Mechanical Properties ◽  
Flame Retardants ◽  
Tensile Tests ◽  
Natural Fibre ◽  
Zinc Borate ◽  
Bunsen Burner ◽  
Bomb Calorimetry ◽  
Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Alumina Trihydrate

The effects of incorporating three different types of flame retardant (FR) and two variants of graphene into 10 %wt palm EFB natural fibre (NF) filled epoxy composites were investigated in term of the flammability, thermal and mechanical properties through standard Bunsen burner experiment, bomb calorimetry, TGA and tensile tests. The types of FR employed include zinc borate (ZB), ammonium polyphosphate (APP) and alumina trihydrate (ATH) while a lab synthesised and a commercial form of graphene were used in the current work. Compared to the neat NF filled epoxy composite, specimens loaded with 15 %wt of either ZB or APP demonstrated a drip-free condition as observed from the Bunsen burner tests, which could be attributed to the strong char forming characteristic of the compositions. In specimens containing 15 %wt of either ZB or ATH, results from Bomb calorimetry revealed that these specific formulations produced the lowest mean gross heat release amongst others, suggesting better resistant to flame. Relative to the graphene incorporated composites, the post TGA measured mass residue was observed to be greater in FR rich formulations, suggesting that FR additives capable of yielding a much superior flame retardancy compared to graphene. While a slight increases in Young’s modulus was recorded in composites loaded with FR, such formulations produced several main drawbacks whereby reduction in ultimate tensile strength and elongation to break were being measured in large proportion of the specimens.

A Review on Mechanical Properties of Natural Fibre Reinforced PLA Composites

2021 ◽  
Vol 15 ◽  
Author(s):  
Agnivesh Kumar Sinha ◽  
Kasi Raja Rao ◽  
Vinay Kumar Soni ◽  
Rituraj Chandrakar ◽  
Hemant Kumar Sharma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polymer Composites ◽  
Biodegradable Polymer ◽  
Weight Ratio ◽  
Natural Fibre ◽  
Polymer Matrices ◽  
Poly Lactic Acid ◽  
Butylene Succinate ◽  
Reinforced Polymer ◽  
Fibre Reinforced Polymer

Presently, scientists and researchers are in an endless quest to develop green, recyclable, and eco-friendly materials. Natural fibre reinforced polymer composites became popular among materialists due to their lightweight, high strength-to-weight ratio, and biodegradability. However, all-natural fibre reinforced polymer composites are not biodegradable. Polymer matrices like poly-lactic acid (PLA) and poly-butylene succinate (PBS) are biodegradable, whereas epoxy, polypropylene, and polystyrene are non-biodegradable polymer matrices. Besides biodegradability, PLA has been known for its excellent physical and mechanical properties. This review emphasises the mechanical properties (tensile, flexural, and impact strengths) of natural fibrereinforced PLA composites. Factors affecting the mechanical properties of PLA composites are also discussed. It also unveils research gaps from the previous literature, which shows that limited studies are reported based on modeling and prediction of mechanical properties of hybrid PLA composites reinforcing natural fibres like abaca, aloe vera, and bamboo fibres.

MECHANICAL PROPERTIES OF HYBRID FIBRES REINFORCED POLYMER MODIFIED MORTAR IN PROMOTING SUSTAINABLE MATERIALS IN CONSTRUCTION

2020 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Azamuddin Husin ◽  
Mahyuddin Mahyuddin ◽  
Cheah Chee Ban
Keyword(s):  
Mechanical Properties ◽  
Construction Industry ◽  
Natural Fibre ◽  
Reinforced Polymer ◽  
Hybrid Fibre ◽  
Fibre Reinforced Polymer ◽  
Sustainable Materials ◽  
Curing Regimes ◽  
Durability Performance ◽  
Significant Increment

Fibre reinforced polymer modified mortar (PMM) was widely accepted for multipurpose application in construction industry. However the use of natural fibre in cementitious material in terms of durability performance was not encouraging. This paper aims to investigate the mechanical properties of the hybrid fibre namely kenaf, polypropylene and bar chip in polymer modified mortar with a low water-cement ratio. The results concluded that the hybridisation of 0.4% kenaf, 0.6% polypropylene and 0.6% bar chip (G sample) exhibited the significant increment of compressive and flexural strength for both curing regimes.

Flexural Mechanical Properties of Natural Fibre Reinforced Polymer Composites — A Statistical Investigation

2020 ◽  
Vol 21 (10) ◽  
pp. 2321-2337
Author(s):  
Benkhelladi Asma ◽  
Laouici Hamdi ◽  
Bouchoucha Ali ◽  
Mouadji Youcef
Keyword(s):  
Mechanical Properties ◽  
Polymer Composites ◽  
Natural Fibre ◽  
Statistical Investigation ◽  
Reinforced Polymer ◽  
Fibre Reinforced Polymer
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