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

2020 ◽  
Vol 923 ◽  
pp. 012042 ◽  
Author(s):  
R Bhoopathi ◽  
M Ramesh
Keyword(s):  
Water Absorption ◽  
Hybrid Composites ◽  
Absorption Properties ◽  
Glass Fibres

scholarly journals Water Absorption Properties of Kenaf/Glass Reinforced Unsaturated Polyester Composites used in Insulator Rods

2019 ◽  
Vol 9 (2) ◽  
pp. 4208-4212
Keyword(s):  
Water Absorption ◽  
Glass Fibre ◽  
Volume Fraction ◽  
Hybrid Composites ◽  
Fibre Composite ◽  
Unsaturated Polyester ◽  
Natural Fibre ◽  
Glass Fibres ◽  
Kenaf Fibre ◽  
Glass Fibre Composite

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

scholarly journals Influence of Accelerated Weathering on the Mechanical, Fracture Morphology, Thermal Stability, Contact Angle, and Water Absorption Properties of Natural Fiber Fabric-Based Epoxy Hybrid Composites

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2254
Author(s):  
Krittirash Yorseng ◽  
Sanjay Mavinkere Rangappa ◽  
Jyotishkumar Parameswaranpillai ◽  
Suchart Siengchin
Keyword(s):  
Contact Angle ◽  
Water Absorption ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Thermal Contact ◽  
Fracture Morphology ◽  
Epoxy Composites ◽  
Accelerated Weathering ◽  
Absorption Properties ◽  
Mechanical Fracture

Epoxy-based biocomposites are a good alternative for metals in lightweight applications. This research has been focused on the effect of accelerated weathering on the mechanical, thermal, contact angle, and water absorption behavior of neat epoxy, individual kenaf and sisal, and kenaf/sisal hybrid epoxy composites. The composite was fabricated by hand layup method. Among the various composites studied, sisal/kenaf/sisal hybrid epoxy composites showed the best properties and retained the thermo-mechanical properties with the lowest water absorption properties even after the weathering test. Thus, composites with hybridized kenaf and sisal with sisal outer layer are encouraging semistructural materials in outdoor applications.

Mechanical and Water Absorption Properties of Hybrid Kenaf/Glass Fibre Mat Reinforced Unsaturated Polyester Composites

2017 ◽  
Vol 888 ◽  
pp. 228-233 ◽  
Author(s):  
Nurshairatun Amira Rozali ◽  
Mohamad Bashree Abu Bakar ◽  
Mohamad Najmi Masri ◽  
Muhammad Azwadi Sulaiman ◽  
Mazlan Mohamed ◽  
...  
Keyword(s):  
Water Absorption ◽  
Glass Fibre ◽  
Room Temperature ◽  
Hybrid Composites ◽  
Unsaturated Polyester ◽  
Morphological Properties ◽  
Flexural Test ◽  
Thickness Swelling ◽  
Absorption Properties ◽  
Kenaf Fibre

Hybrid kenaf/glass fibre mat reinforced unsaturated polyester (UPE) composites have been prepared by using simple hand lay up moulding technique. The composites with various formulations were characterized by flexural test while water absorption behaviour were investigated with immersion in distilled water at room temperature. The result shows that the hybrid composites with kenaf fibre mat at the innermost layers (glass fibre mat at the outer layers) has given the highest flexural strength and modulus. On the other hand, water absorption study shows that, the hybrid composites with glass fibre mat at the innermost layers (kenaf fibre mat at the outer layers) showed the highest water uptake and thickness swelling. Further investigations on morphological properties were also done to correlate the mechanical properties of the hybrid kenaf/glass fibre mat reinforced UPE composites.

scholarly journals Investigation on Mechanical, Thermal and Water Absorption Properties of Banana/Coir Reinforced Polypropylene Hybrid Composites

2020 ◽  
Vol 30 (3-4) ◽  
pp. 123-131
Author(s):  
Bujjibabu Gunturu ◽  
Chittaranjandas Vemulapalli ◽  
Ramakrishna Malkapuram ◽  
Nagarjuna Konduru
Keyword(s):  
Water Absorption ◽  
Hybrid Composites ◽  
Absorption Properties

scholarly journals Investigation of Jute and Glass Fibre Reinforced Hybrid Composites Manufactured through Compression Molding Process

2022 ◽  
Vol 7 (1) ◽  
pp. 35-46
Author(s):  
Md. Jahangir Alam ◽  
Mohammad Washim Dewan ◽  
Sojib Kummer Paul ◽  
Khurshida Sharmin
Keyword(s):  
Water Absorption ◽  
Glass Fibre ◽  
Chemical Treatment ◽  
Hybrid Composites ◽  
Stacking Sequence ◽  
Jute Fibre ◽  
Reinforced Composites ◽  
Absorption Properties ◽  
Glass Fibre Reinforced ◽  
Fibre Reinforced Composites

Expensive and non-biodegradable synthetic fibres are commonly utilized as reinforcement in composites for better mechanical properties. The eco-friendly and low-cost properties of natural fibres are promising alternative reinforcement for composites. In this study epoxy-based glass and jute fibres reinforced hybrid composites are fabricated varying fibre stacking sequences, 1jute-1glass alternatively (j-g-j-) and 4glass-9jute-4glass (4g-9j-4g). Hybridization of jute and glass fibre results better tensile, flexural and water absorption properties than only jute fibre reinforced composites but inferior to only glass fibre reinforced composites. The 4g-9j-4g stacking sequence resulted in better mechanical and water absorption properties than j-g-j-- stacking sequence. The effect of chemical treatment and glass microfiber infusion are also investigated. Chemically treated jute fibre and 2 wt.% microfiber infused hybrid composite shows about 42% improvements in flexural strength as compared to untreated and without microfiber infused composites. However, fibre chemical treatment and microfiber do not have a positive impact on tensile strength.

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