Study of effect of fibre volume and dimension on mechanical, thermal, and water absorption behaviour of luffa reinforced epoxy composites

2015 ◽  
Vol 66 ◽  
pp. 321-330 ◽  
Author(s):  
K. Anbukarasi ◽  
S. Kalaiselvam
Keyword(s):  
Water Absorption ◽  
Fibre Volume ◽  
Epoxy Composites

scholarly journals Insulation Characteristics of Sisal Fibre/Epoxy Composites

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
A. Shalwan ◽  
M. Alajmi ◽  
A. Alajmi
Keyword(s):  
Volume Fraction ◽  
Fibre Volume Fraction ◽  
Thermal Characteristics ◽  
Fibre Volume ◽  
Point Of View ◽  
Natural Fibres ◽  
Epoxy Composites ◽  
Ongoing Research ◽  
Sisal Fibre ◽  
The Impact

Using natural fibres in civil engineering is the aim of many industrial and academics sectors to overcome the impact of synthetic fibres on environments. One of the potential applications of natural fibres composites is to be implemented in insulation components. Thermal behaviour of polymer composites based on natural fibres is recent ongoing research. In this article, thermal characteristics of sisal fibre reinforced epoxy composites are evaluated for treated and untreated fibres considering different volume fractions of 0–30%. The results revealed that the increase in the fibre volume fraction increased the insulation performance of the composites for both treated and untreated fibres. More than 200% insulation rate was achieved at the volume fraction of 20% of treated sisal fibres. Untreated fibres showed about 400% insulation rate; however, it is not recommended to use untreated fibres from mechanical point of view. The results indicated that there is potential of using the developed composites for insulation purposes.

The Effects of Stacking Sequence on the Mechanical and Water Absorption Properties of Areca-Pineapple Fiber-based Epoxy Composites

2021 ◽  
pp. 1-12
Author(s):  
Vijay Raghunathan ◽  
Jafrey Daniel James Dhilip ◽  
Mohan Ramesh ◽  
Ramprasath Kumaresan ◽  
Srivenkateswaran Govindarajan ◽  
...  
Keyword(s):  
Water Absorption ◽  
Epoxy Composites ◽  
Stacking Sequence ◽  
Absorption Properties

scholarly journals Studies on Water Sorption Behaviour of Laminated Bamboo Polymer Composite

2019 ◽  
Vol 130 ◽  
pp. 01040 ◽  
Author(s):  
Yuniar Ratna Pratiwi ◽  
Indah Widiastuti ◽  
Budi Harjanto
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Tensile Properties ◽  
Water Immersion ◽  
Bamboo Fiber ◽  
Epoxy Composites ◽  
Gravimetric Analysis ◽  
Sorption Behaviour ◽  
Laminated Bamboo ◽  
The Matrix

The aim of this article is to evaluate water absorption in bamboo fiber composites. Bamboo is hydrophilic, means that it easily absorbs water. In this study the bamboo fiber-based composites were developed using hand lay up method, with epoxy resin as the matrix constituent. Water absorption characteristics of specimens of bamboo composite and epoxy were determined from water immersion tests at several temperatures. Gravimetric analysis was performed to determine the moisure absorbed as a function of time at two different temperatures: 25 ºC and 50 C. The diffusivity of water in an epoxy bamboo composite was determined after reaching saturation point. During room temperature soaking, epoxy specimen showed the characteristic of Fickian behavior. Similar immersion tests on bamboo-epoxy composites followed nonfickian behavior. Changes in the mechanical properties of material due to water absorption were evaluated from tensile testing on materials with varied water content. It was found that the waterabsorption in all samples reduced the tensile properties. The degradation of tensile properties was greater with an increasing temperature of immersion. The results of this study emphasize the importance ofconsidering deterioration of mechanical properties in the bamboo epoxy composites during their application in water and possibly in humid environment.

scholarly journals Strain Rate Effects on Tensile and Compressive Behaviour of Woven-Knitting Glass/Epoxy Composites

2013 ◽  
Vol 22 (1) ◽  
pp. 096369351302200 ◽  
Author(s):  
Mehmet Aktas ◽  
H. Ersen Balcioğlu ◽  
Gürhan Külahli
Keyword(s):  
Strain Rate ◽  
Volume Fraction ◽  
Fibre Volume Fraction ◽  
Testing Machine ◽  
Fibre Volume ◽  
Woven Fabric ◽  
Epoxy Composites ◽  
Compressive Properties ◽  
Compressive Behaviour ◽  
Low Strain Rate

The main purpose of this study was to investigate the tensile and compressive behaviour of woven-knitting glass/epoxy composites under low strain rate by using UTEST testing machine with capacity of 50kN. The strain rate values were selected as 0.005, 0.0005 and 0.00005s−1. The effect of knitting direction as wale, course and 45° and knitting structure as rib and milano on the tensile and compressive behaviour of woven-knitting glass/epoxy composites under low strain rate was also discussed. The woven-knitting composite samples were tested under uni-axial tensile and compressive loading. The woven-knitting composites have eight layer with woven fabric (W), rib (R) and milano (M) knitting fabrics as (W2/R2)S and (W2/M2)S. The woven-knitting composites were manufactured by hand lay-up method. The fibre volume fraction and thickness of manufactured woven-knitting composites were measured 65% in weight and 2.9mm, respectively. The experimental results showed that the tensile and compressive properties of woven-knitting glass/epoxy composites decrease from 0.005 s−1 to 0.00005s−1. The tensile properties in all directions of plate with rib knitting were obtained higher than the plate with milano knitting. However, the highest compressive properties were obtained from plate with rib knitting in course direction.

Influence of fiber surface treatments on physico-mechanical behaviour of jute/epoxy composites impregnated with aluminium oxide filler

2017 ◽  
Vol 51 (28) ◽  
pp. 3909-3922 ◽  
Author(s):  
Priyadarshi Tapas Ranjan Swain ◽  
Sandhyarani Biswas
Keyword(s):  
Water Absorption ◽  
Benzoyl Chloride ◽  
Moisture Absorption ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Aluminium Oxide ◽  
Fiber Surface ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Chemically Treated

The present paper discovers the effect of ceramic filler inclusion on physico-mechanical and water absorption behaviour of untreated and chemically treated (alkali and benzoyl chloride treated) bi-directional jute natural-fiber-reinforced epoxy composites. In practice, the major drawbacks of using natural fibers are their high degree of moisture absorption and poor dimensional stability. Currently, chemical treatments are able to induce fiber modifications that increase their resistance when utilized in composite products. Jute fibers were subjected to various chemical modifications to improve the interfacial bonding with the matrix. In this study, an analysis has been carried out to make pre-treated jute fiber (10, 20, 30 and 40 wt.%) and different filler content (5 and 10 wt.%) with epoxy-based composites. A comparative study of all the untreated jute/aluminium oxide based hybrid composites with chemically treated jute/aluminium oxide based hybrid composites was carried out. The investigational result reveals that chemically treated composites considerably improved the mechanical properties of the composite. The maximum water absorption resistance and strength properties were found with benzoyl chloride-treated fiber-reinforced composite. Lastly, the surface morphology of fractured surfaces after tensile and flexural testing is studied using scanning electron microscope.

Tensile Strength and Water Absorption Behavior of Recycled Jute-Epoxy Composites

2013 ◽  
Vol 1 (4) ◽  
pp. 279-288 ◽  
Author(s):  
Sihan Wang ◽  
Reza Masoodi ◽  
Janet Brady ◽  
Brian R. George
Keyword(s):  
Tensile Strength ◽  
Water Absorption ◽  
Epoxy Composites
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