Effect of treated coir fiber/coconut shell powder and aramid fiber on mechanical properties of vinyl ester

2017 ◽  
Vol 39 (12) ◽  
pp. 4542-4550 ◽  
Author(s):  
P.A. Udaya Kumar ◽  
Ramalingaiah ◽  
B. Suresha ◽  
N. Rajini ◽  
K.G. Satyanarayana
Keyword(s):  
Mechanical Properties ◽  
Vinyl Ester ◽  
Aramid Fiber ◽  
Coconut Shell ◽  
Coir Fiber ◽  
Coconut Shell Powder ◽  
Shell Powder

scholarly journals Effect of Coconut Shell Powder as Filler on the Mechanical Properties of Coir-polyester Composites

2017 ◽  
Vol 5 (4) ◽  
pp. 75-82 ◽  
Author(s):  
Md. Tangimul Islam ◽  
Subrata Chandra Das ◽  
Joykrisna Saha ◽  
Debasree Paul ◽  
M. Tauhidul Islam ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Coconut Shell ◽  
Polyester Composites ◽  
Coconut Shell Powder ◽  
Shell Powder

scholarly journals Static Mechanical, Heat Deflection And Ageing Properties of Cocos Nucifera Filler Reinforced Vinyl Ester Polymer Composites

2021 ◽  
Author(s):  
J. David Gnanaraj ◽  
S. Mothilal ◽  
V. Vignesh ◽  
T. Karthick ◽  
Sikiru O. Ismail ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Composite Structures ◽  
Vinyl Ester ◽  
Cocos Nucifera ◽  
Particulate Composite ◽  
Composite Plates ◽  
Coconut Shell ◽  
Engineering Applications ◽  
Coconut Shell Powder ◽  
Shell Powder

Abstract Recently, natural filler reinforced polymer composites are important materials for various engineering applications. Hence, this present work focuses on utilization of coconut shell powder (CSP) as a filler in vinyl ester (VE) resin to produce particulate composite specimens. The particulate composite plates with various weights or filler contents from 5 to 30 wt% were fabricated, using compression molding technique. The fabricated composites were subjected to tensile, flexural, impact, hardness, heat deflection and swelling behavior tests to obtain their corresponding material properties. Energy dispersive X-ray (EDX) analysis was carried out on the coconut shell powder/vinyl ester (CSP/VE) composite specimens to investigate into the presence of their elements, in addition to the aforementioned tests. From the experimental results obtained, it was observed that the optimum mechanical properties of CSP/VE composites were obtained at 15 wt% of filler content, having tensile, flexural and impact strengths of 38.70, 105.13 MPa and 33.04 kJ/m2, respectively. Also, the heat deflection temperature (HDT) results varied from 158 (0 wt%, neat VE resin) to 171 oC along various percentages of filler contents. Lastly, the morphological study/analysis of the fractured CSP/VE composite specimens was conducted by using a scanning electron microscope (SEM) to confirm the experimental data/results obtained. It was evident that CSP/VE composite structures could be potential substitutes for some synthetic composites. Also, they are suitable for various engineering applications in aerospace, electrical/electronics and automobile industries, based on their properties.

scholarly journals Mechanical Properties of Pack Carburized SCM 420 Steel Processed Using Natural Shell Powders and Extended Carburization Time

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1136
Author(s):  
Ramli ◽  
Chung-Chun Wu ◽  
Adel Shaaban
Keyword(s):  
Mechanical Properties ◽  
Carbon Content ◽  
Surface Hardness ◽  
Water Quenching ◽  
Coconut Shell ◽  
Carburized Layer ◽  
Coconut Shell Powder ◽  
Shell Powder ◽  
Conch Shell

The feasibility of using coconut shell powder (CSP) and dog conch shell powder (DCSP) as carburizing media in the pack carburization of SCM 420 steel was investigated. The carbon content and surface hardness of the carburized specimens prepared with different CSP:DCSP ratios and carburizing durations were examined and compared. A CSP:DCSP ratio of 60%:40% and an extended carburizing time of 12 h were found to increase the carbon content of the carburized specimens to 1.14 ± 0.007 wt%. Furthermore, the surface hardness was significantly improved to 961.3 ± 4.918 HV following water quenching. Finally, the thickness of the carburized layer of the quenched specimens increased by around 2.5 times as the carburizing duration was increased from 3 to 12 h.

Morphology and mechanical properties of coconut shell powder-filled untreated cornhusk fibre-unsaturated polyester composites

Polymer ◽  
2021 ◽  
Vol 222 ◽  
pp. 123657
Author(s):  
Nasmi Herlina Sari ◽  
Suteja Suteja ◽  
Ahmad Fudholi ◽  
Ahmad Zamzuriadi ◽  
Emmy Dyah Sulistyowati ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Unsaturated Polyester ◽  
Coconut Shell ◽  
Polyester Composites ◽  
Coconut Shell Powder ◽  
Shell Powder ◽  
Morphology And Mechanical Properties
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