Optimization of drilling output responses of eggshell fillers reinforced hemp/glass fibres hybrid composites

Kenaf fibres have acquired enormous attention in recent years, owing to their economic viability and environmental acceptability. Kenaf (natural) fibres have been started to replace the glass fibre (synthetic) in mechanical, electrical applications and have been utilized in several applications of industrial engineering. The current study deals with water absorption of kenaf/glass fibre reinforced unsaturated polyester composite materials used in high voltage polymeric insulator rods. The kenaf/glass hybrid composites were based on 20%, 30% and 40%(by volume) of kenaf fibers replacement glass fibres with modified 60 vol.% unsaturated polyester resins. The composites were immersedin distilled water at room temperature, and composites resistance to water absorption in terms of the rate of water absorption was determined.A considerable difference in the properties of water absorption of the hybrid composite was found demonstrating that the water absorption effect on the characteristics of insulator rods depends on the arrangement and volume fraction of kenaf fibre of the composite used. Based on the results obtained, a slight effect of water absorption on pure glass fibre composite (control) was observed. The addition of kenaf fibre on glass fibre composite rod increased the water absorption of the composite. It was shown that glass fibres surrounding kena ffibre reduced water absorption. Despite the fact that 40 vol.% of kenaf fibre composite had the highest natural fibre content, it showed the lowest water absorption because of its arrangement on all composite diameters, and also because of being surrounded by glass fibres. All of the materials reached equilibrium and ceased to absorb water after 300 hours

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Submicron inorganic particles as an additional filler in hybrid epoxy matrix composites reinforced with glass fibres

Polymers and Polymer Composites ◽

10.1177/0967391119887570 ◽

2019 ◽

Vol 28 (7) ◽

pp. 484-491

Author(s):

Marcin Włoch ◽

Filip Bagiński ◽

Piotr Koziński ◽

Janusz Datta

Keyword(s):

Mechanical Properties ◽

Metal Oxide ◽

Epoxy Resin ◽

Epoxy Matrix ◽

Hybrid Composites ◽

Flexural Modulus ◽

Submicron Particles ◽

Inorganic Particles ◽

Glass Composites ◽

Glass Fibres

In this study, the effect of selected submicron metal oxide (zinc oxide, titanium oxide) or non-metal oxide (silicon dioxide) particles on mechanical and thermo-mechanical properties of epoxy/glass composites was investigated. The applied epoxy resin was a diglycidyl ether of bisphenol-A cured with triethylenetetramine. As a reinforcement twill weave E-glass fabric was used. Hybrid composites (contained particulate and fibrous filler) were fabricated by using the hand lay-up method and the average content of glass fibres was 39–41 wt%. Flexural properties, thermo-mechanical properties, abrasion resistance and hardness were determined for each group of the prepared hybrid epoxy/glass composites. The obtained results were compared with control samples (without submicron particles). Investigations showed that the addition of 2 wt% SiO2, 4 wt% TiO2 or 4 wt% ZnO to epoxy resin improved the flexural strength and the flexural modulus of composites. Dynamic mechanical analysis showed that the addition of the mentioned particles enhanced storage and loss modulus. It can be attributed to the good dispersion and good interaction between submicron-mentioned particles and the epoxy matrix.

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Influence of eggshell particles on mechanical and water absorption properties of hemp-glass fibres reinforced hybrid composites

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/923/1/012042 ◽

2020 ◽

Vol 923 ◽

pp. 012042 ◽

Cited By ~ 1

Author(s):

R Bhoopathi ◽

M Ramesh

Keyword(s):

Water Absorption ◽

Hybrid Composites ◽

Absorption Properties ◽

Glass Fibres

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Evaluation of Mechanical Properties of Banana and Glass-Epoxy Hybrid Composites with Addition of Copper Powder

International Journal of Vehicle Structures and Systems ◽

10.4273/ijvss.11.3.20 ◽

2019 ◽

Vol 11 (3) ◽

Cited By ~ 4

Author(s):

P. Parameswaran ◽

V. Vijayan ◽

K. Radhakrishnan ◽

A.Godwin Antony

Keyword(s):

Mechanical Properties ◽

Metal Powder ◽

Hybrid Composites ◽

Glass Fibres ◽

Frp Composites ◽

Reinforced Polymer ◽

Fibre Reinforced Polymer ◽

Temperature Application ◽

Deflection Test ◽

Made In

More studies have been made in recent years on the fibre reinforced polymer. Natural fibres play an important role in modern FRPs. To obtain higher mechanical properties, glass fibres are incorporated to prepare hybrid FRP composites. Present study, focuses the effect of adding the copper metal powder in polymer matrix i.e. the metal powder is mixed in the resin with varying proportions along with the banana and glass fibres. Five laminates were fabricated by varying the copper content from 1% to 5% and keeping the banana and glass fibres weight as common. The study concentrates on mechanical properties of the obtained hybrid composites. Good flexural and ultimate tensile strengths were obtained. The flame deflection test shows the hybrid composite is not suitable for high temperature application as it breaks the bond between the resin and the reinforcements due to thermal conductivity of copper.

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Dynamic Viscoelastic Properties of Organic / Inorganic Fibres Reinforced lldpe Composites in Molten State

Applied Rheology ◽

10.1515/arh-2001-0014 ◽

2001 ◽

Vol 11 (5) ◽

pp. 258-263 ◽

Cited By ~ 4

Author(s):

Takeschi Kitano ◽

S.A.R. Hashmi ◽

Navin Chand

Keyword(s):

Viscoelastic Properties ◽

Parallel Plate ◽

Hybrid Composites ◽

Loss Modulus ◽

Angular Frequency ◽

Low Density Polyethylene ◽

Rheological Parameters ◽

Low Density ◽

Linear Low Density Polyethylene ◽

Glass Fibres

Abstract Dynamic rheological parameters such as storage modulus, G’, loss modulus, G”, and dynamic viscosity, h’, at 200°C were studied for Kevlar fibres, glass fibres and their hybrids reinforced linear low density polyethylene (LLDPE). Parallel plate rheometer was employed for these tests. G’, G” and h’ increased with the increased reinforcement and angular frequency, w. Two sets of reinforcement, 10 and 20 vol.% of fibres are used in LLDPE. The composition of fibres in hybrid composites was varied. The replacement of glass fibres with Kevlar increases the values of G’, G” and h’. The values of these rheological parameters also increased with the thickness of the composite. This increase was associated with the decreased average orientation of fibres present in the composite. The effects of the change in strain amplitude on G’ and G” is also studied and reported here.

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Effect of stacking sequence on tensile, flexural and thermomechanical properties of hybrid flax/glass and jute/glass thermoset composites

Journal of Industrial Textiles ◽

10.1177/1528083717736102 ◽

2017 ◽

Vol 48 (2) ◽

pp. 494-520 ◽

Cited By ~ 16

Author(s):

Erdem Selver ◽

Nuray Ucar ◽

Turgut Gulmez

Keyword(s):

Flexural Strength ◽

Composite Laminates ◽

Volume Fraction ◽

Hybrid Composites ◽

Fibre Volume Fraction ◽

Thermomechanical Properties ◽

Natural Fibres ◽

Stacking Sequence ◽

Dynamic Mechanical ◽

Glass Fibres

This paper investigates tensile, flexural, and dynamic mechanical properties of natural and hybrid thermoset composite laminates made from flax/glass and jute/glass fibres. Hybrid laminates with various stacking sequences were manufactured by vacuum infusion method. Weight and cost of composites decreased using cheaper and lightweight natural fibres (flax and jute). Results showed that composite laminates made from natural fibres had higher specific strength values when the results were normalised to same glass fibre volume fraction, although they had lower tensile and flexural strength than that of glass composites without normalization. Composite elastic properties were predicted using classical lamination theory through rule of mixture and Halpin–Tsai models, and compared with experimental values. Changing the stacking sequence did not affect the tensile strength and modulus of composites significantly, whereas there were notable differences on flexural strength of composites when the outer layers contained glass fibres. Dynamic mechanical analyses showed similar results as flexural test, while natural fibre and some of hybrid composites had higher damping characteristics than glass-reinforced composites.

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