Tensile and Flexural Strength of Untreated Napier Grass Fibre/Polyester Composites

2015 ◽  
Vol 819 ◽  
pp. 295-300
Author(s):  
J.A.M. Haameem ◽  
M.S. Abdul Majid ◽  
M. Afendi ◽  
M. Haslan Fadli ◽  
E.A. Helmi ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Composite Laminates ◽  
Tensile Tests ◽  
Natural Fibre ◽  
Maximum Strength ◽  
Napier Grass ◽  
Fibre Composites ◽  
Short Fibres ◽  
Polyester Composite ◽  
Polyester Composites

This paper describes the experimental investigation of the tensile and flexural strength of untreated Napier grass fibre reinforced polyester composites. Napier grass fibres were extracted trough conventional water retting process and used as reinforcing materials in the polyester composite laminates. Tensile tests were then conducted for the composite specimens from the laminates at 25% fibre loading using the electronic extensometer setup to obtain the tensile properties. The results show significant differences in tensile strength between random short fibres laminates and random long fibrelaminates with the long fibres yield over 30 % higher in strength.Both the short and long fibre composites exhibits similar strength with short fibres having slightly higher flexural strength to long fibres The laminate also shows higher maximum strength compared to other commonly available natural fibre composites with almost 75 % improved in the maximum strength compared to the short kenaf fibre reinforced composites.

Tensile Strength of Untreated Napier Grass Fibre Reinforced Unsaturated Polyester Composites

2014 ◽  
Vol 554 ◽  
pp. 189-193 ◽  
Author(s):  
J.A. M. Haameem ◽  
M.S. Abdul Majid ◽  
E.A.H. Engku Ubaidillah ◽  
Mohd Afendi ◽  
R. Daud ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Composite Laminates ◽  
Unsaturated Polyester ◽  
Tensile Tests ◽  
Natural Fibre ◽  
Maximum Strength ◽  
Napier Grass ◽  
Fibre Composites ◽  
Polyester Composite ◽  
Polyester Composites

This paper describes the experimental investigation of the tensile strength of untreated Napier grass fibre reinforced polyester composites. Napier grass fibres were extracted trough conventional water retting process and used as reinforcing materials in the polyester composite laminates. Tensile tests were then conducted for the composite specimens from the laminates at 25% fibre loading using the electronic extensometer setup to obtain the tensile properties. The results show significant differences in tensile strength between random short fibres laminates and random long fibre laminates with the long fibres yield almost 45 % higher in the strength. The laminates also show higher maximum strength compared to other commonly available natural fibre composites with over 70 % increase in the maximum strength compared to the short kenaf fibre reinforced composites.

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.

Influence of fibre loading and surface treatment on the impact strength of coir polyester composites

2021 ◽  
Vol 1 (107) ◽  
pp. 16-20
Author(s):  
S. Karthikeyan
Keyword(s):  
Impact Strength ◽  
Solution Concentration ◽  
Natural Fibre ◽  
Soaking Time ◽  
Impact Properties ◽  
Coir Fibre ◽  
Polyester Composite ◽  
Polyester Composites ◽  
The Impact ◽  
Fibre Loading

Purpose: In this work, coir fibre with varying fibre content was selected as reinforcements to prepare polymer-based matrices and the problem of reduced fibre-matrix interfacial bond strength has been diluted by chemical treatment of coir fibres with alkali solution. Design/methodology/approach: The effect of fibre loading, solution concentration and soaking time on the impact strength of the composites were analyzed using statistical techniques. Response Surface Methodology (RSM) approach was used to model and optimize the impact properties of coir-polyester composites. Findings: The impact strength of coir fibre reinforced polyester composite depends mainly on the fabrication parameters such as fibre-polyester content, soaking time, concentration of soaking agent and adhesive interaction between the fibre and reinforcement. Research limitations/implications: The mechanical properties of any coir polyester composite depend on the nature bonding between the fibre and reinforcement. The presence of cellulose, lignin on the periphery of any natural fibre reduces the bonding strength of the composite. This limitation is overcome by fibre treatment over sodium hydroxide to have better impact properties. Practical implications: Now days, natural fibre reinforced composites are capable of replacing automotive parts, subjected to static loads such as engine Guard, light doom, name plate, tool box and front panels etc. These materials can withstand any static load due to its higher strength to weight ratios. Originality/value: The effect of fibre loading, solution concentration and soaking time on the impact strength of the composites were analyzed using statistical techniques. Response Surface Methodology (RSM) approach was used to model and optimize the impact properties of coir-polyester composites. The impact strength of NaOH impregnated coir fibre reinforced polyester composites was evaluated.

scholarly journals Influence of Chemical Treatment on Tensile and Flexural Properties of Sansevieria Cylindrica Polyester Composites

2019 ◽  
Vol 9 (2S2) ◽  
pp. 547-550
Keyword(s):  
Tensile Strength ◽  
Flexural Strength ◽  
Fibre Length ◽  
Natural Fibre ◽  
Curing Temperature ◽  
Weight Percentage ◽  
Chemical Treatments ◽  
Polyester Composite ◽  
Polyester Matrix ◽  
Performance Surface

The sansevieria cylindrica polyester composite slabs are made by compression molding technique using fibres treated with sodium hydroxide (NaOH), silane, calcium hydroxide (Ca(OH)2) and potassium permanganate (KMnO4) for optimum fibre length, optimum weight percentage and optimum curing temperature ( 40 mm, 40% wt, 600C) and their tensile properties have been studied. The inclusion of sansevieria cylindrica fibre as reinforcement into polyester matrix improves the flexural and tensile strength till a certain weight percentage, then it decreases drastically by further addition of fibre. The main problem in natural fibre is water uptake which damages the fibre and thereby the strength is reduced. To improve the performance, surface modification of fibres with various chemical treatments is performed and it enhanced the properties to a greater extent. Ca(OH)2 treated composites showed higher tensile strength whereas silane treated composites showed lower tensile strength. KMnO4 treated composites showed higher flexural strength whereas silane treated composites showed lower flexural strength.

Investigation of the Tensile and Flexural Behavior of Polylactic Acid Based Jute Fiber Bio Composite

2020 ◽  
Vol 841 ◽  
pp. 283-287
Author(s):  
M. Aadithya ◽  
V.K. Kirubakar ◽  
T. Aakash ◽  
Chinnasamy Senthamaraikannan
Keyword(s):  
Tensile Tests ◽  
Natural Fibre ◽  
Flexural Behavior ◽  
Synthetic Fiber ◽  
Circuit Boards ◽  
Social Concern ◽  
Hot Press ◽  
Global Environmental ◽  
Fibre Composites ◽  
Press Molding

The main objective of this investigation is to reduce and eventually replace the use of non-biodegradable synthetic fiber. Bio composites have shown growth and has been used in the domestic sector, aerospace industry, circuit boards, and automotive applications over the past few years. Many types of natural fibres have been investigated to produce composite materials that are competitive with synthetic fibre composites. Jute is a natural fibre and is 100% bio-degradable and recyclable and thus environmentally friendly. Its properties include high tensile strength, low extensibility. This bio composite specimen has been fabricated with the help of hot press molding machine. The flexural and Tensile tests have been done according to the ASTM standards. The increasing awareness of global environmental and social concern and new environmental regulations have propelled the search for new composites that are compatible with the environment.

Fabrication and Characterization of Biocomposite Using Grewia Optiva Fibre (i.e. Bhimal) Reinforced Polyvinyl Alcohol (PVA)

2015 ◽  
Vol 1105 ◽  
pp. 51-55 ◽  
Author(s):  
K.M. Gupta ◽  
Kishor Kalauni
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Natural Fibre ◽  
Fabrication Method ◽  
View Point ◽  
Engineering Material ◽  
Fibre Composites ◽  
Grewia Optiva ◽  
Fabrication And Characterization

Bhimal fibres are quite a newer kind of bio-degradable fibres. They have never been heard before in literatures from the view point of their utility as engineering material. These fibres have been utilized for investigation of their properties. Characterization of this fibre is essential to determine its properties for further use as reinforcing fibre in polymeric, bio-degradable and other kinds of matrix. With this objective, the fabrication method and other mechanical properties of Bhimal-reinforced-PVA biocomposite have been discussed. The stress-strain curves and load-deflection characteristics are obtained. The tensile, compressive, flexure and impact strengths have been calculated. The results are shown in tables and graphs. The results obtained are compared with other existing natural fibre biocomposites. From the observations, it has been concluded that the tensile strength of Bhimal-reinforced-PVA biocomposite is higher than other natural fibre composites. Hence these can be used as reinforcement to produce much lighter weight biocomposites.

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