scholarly journals ​Coconut Shell Powder Reinforced Epoxy Composites: A Review

2021 ◽  
Author(s):  
Adarsh M. Kalla ◽  
H. Manjunatha ◽  
R. Devaraju
Keyword(s):  
Natural Fiber ◽  
Agricultural Waste ◽  
Natural Fibers ◽  
Cost Effective ◽  
Epoxy Composites ◽  
Coconut Shell ◽  
Synthetic Fiber ◽  
Good Thermal Stability ◽  
Coconut Shell Powder ◽  
Shell Powder

Fibers are of two type’s natural fiber and synthetic fiber. Natural fibers include those made from plant and animal sources. The natural fiber composites can be very cost effective material and have turned out to be an alternative solution to the ever depleting petroleum sources and have reduced the nuisance of pollution. The production of complete natural fiber based materials as a substitute for petroleum-based products would not be an economical solution. A more viable solution would be to combine petroleum and bio-based resources to develop a cost-effective product with diverse applications. The application of natural fiber-reinforced composites has been extended to almost all fields such as building and construction industry, storage devices (post-boxes, grain storage silos, bio-gas containers etc.), furniture and electrical devices. Coconut shell is a lignocellulosic agro waste which is burnt or left to decay in environment. These can be a very interesting material as filler in biodegradable polymer composites, due to its good thermal stability compared to other agricultural waste. In context to this, review was carried out to assess the coconut shell powder reinforced epoxy composites and their mechanical, structural and thermal properties.

scholarly journals Natural Fillers as Potential Modifying Agents for Epoxy Composition: A Review

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 265
Author(s):  
Natalia Sienkiewicz ◽  
Midhun Dominic ◽  
Jyotishkumar Parameswaranpillai
Keyword(s):  
Epoxy Resins ◽  
Low Cost ◽  
Agricultural Waste ◽  
Natural Fibers ◽  
Thermomechanical Properties ◽  
Coconut Shell ◽  
Synthetic Fiber ◽  
Peanut Shell ◽  
Epoxy Composition ◽  
Natural Fillers

Epoxy resins as important organic matrices, thanks to their chemical structure and the possibility of modification, have unique properties, which contribute to the fact that these materials have been used in many composite industries for many years. Epoxy resins are repeatedly used in exacting applications due to their exquisite mechanical properties, thermal stability, scratch resistance, and chemical resistance. Moreover, epoxy materials also have really strong resistance to solvents, chemical attacks, and climatic aging. The presented features confirm the fact that there is a constant interest of scientists in the modification of resins and understanding its mechanisms, as well as in the development of these materials to obtain systems with the required properties. Most of the recent studies in the literature are focused on green fillers such as post-agricultural waste powder (cashew nuts powder, coconut shell powder, rice husks, date seed), grass fiber (bamboo fibers), bast/leaf fiber (hemp fibers, banana bark fibers, pineapple leaf), and other natural fibers (waste tea fibers, palm ash) as reinforcement for epoxy resins rather than traditional non-biodegradable fillers due to their sustainability, low cost, wide availability, and the use of waste, which is environmentally friendly. Furthermore, the advantages of natural fillers over traditional fillers are acceptable specific strength and modulus, lightweight, and good biodegradability, which is very desirable nowadays. Therefore, the development and progress of “green products” based on epoxy resin and natural fillers as reinforcements have been increasing. Many uses of natural plant-derived fillers include many plant wastes, such as banana bark, coconut shell, and waste peanut shell, can be found in the literature. Partially biodegradable polymers obtained by using natural fillers and epoxy polymers can successfully reduce the undesirable epoxy and synthetic fiber waste. Additionally, partially biopolymers based on epoxy resins, which will be presented in the paper, are more useful than commercial polymers due to the low cost and improved good thermomechanical properties.

scholarly journals PEMANFAATAN SERBUK TEMPURUNG KELAPA PADA KOMPOSIT Al2O3-EPOXY

2013 ◽  
Vol 3 (2) ◽  
Author(s):  
Ahmad Syafruddin Zohri ◽  
Nasmi Herlina Sari ◽  
S. Sujita
Keyword(s):  
Epoxy Resin ◽  
Volume Fraction ◽  
Epoxy Composite ◽  
Method Comparison ◽  
Wear Test ◽  
Epoxy Composites ◽  
Coconut Shell ◽  
Alternative Material ◽  
Coconut Shell Powder ◽  
Shell Powder

The purpose of this research is utilization of coconut shell powder on Al2O3-Epoxy composite so it can be used as an alternative material of brake linings that are enviromentlly friendly. In this research, coconut shell powder is used as a filler on Al2O3-Epoxy composites that are made using hand lay up method. Comparison volume fraction of coconut shell powder and Al2O3 was varied amount 0:40, 10:30, 20:20, 30:10 and 40:0 (%). Adhesive was used is epoxy resin namely amount 60%. Test conducted is wear test. The results showed that utilization of coconut shell powder on Al2O3-Epoxy can be decrease the wear so it can be used as an alternative material of brake linings that are environmentally friendly

Physical and thermal behaviour of areca and coconut shell powder reinforced epoxy composites

2020 ◽  
Vol 26 ◽  
pp. 1402-1405
Author(s):  
G. Kishore Chowdari ◽  
D.V.V. Krishna Prasad ◽  
S.B.R. Devireddy
Keyword(s):  
Thermal Behaviour ◽  
Epoxy Composites ◽  
Coconut Shell ◽  
Coconut Shell Powder ◽  
Shell Powder

scholarly journals Direct Comparison of the Structural Compression Characteristics of Natural and Synthetic Fiber-Epoxy Composites: Flax, Jute, Hemp, Glass and Carbon Fibers

Fibers ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 62
Author(s):  
Mike R. Bambach
Keyword(s):  
Glass Fiber ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Epoxy Composites ◽  
Synthetic Fiber ◽  
Natural Fiber Composites ◽  
Composite Channels ◽  
Natural And Synthetic

Recent decades have seen substantial interest in the use of natural fibers in continuous fiber reinforced composites, such as flax, jute and hemp. Considering potential applications, it is of particular interest how natural fiber composites compare to synthetic fiber composites, such as glass and carbon, and if natural fibers can replace synthetic fibers in existing applications. Many studies have made direct comparisons between natural and synthetic fiber composites via material coupon testing; however, few studies have made such direct comparisons of full structural members. This study presents compression tests of geometrically identical structural channel sections fabricated from fiber-epoxy composites of flax, jute, hemp, glass and carbon. Glass fiber composites demonstrated superior tension material coupon properties to natural fiber composites. However, for the same fiber mass, structural compression properties of natural fiber composite channels were generally equivalent to, or in some cases superior to, glass fiber composite channels. This indicates there is substantial potential for natural fibers to replace glass fibers in structural compression members. Carbon fiber composites were far superior to all other composites, indicating little potential for replacement with natural fibers.

Tribology of Natural Fiber Reinforced Polymer Composites

2011 ◽  
Author(s):  
Pradeep L. Menezes ◽  
Pradeep K. Rohatgi ◽  
Michael R. Lovell
Keyword(s):  
Polymer Composites ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Environmentally Friendly ◽  
Cost Effective ◽  
Fiber Reinforced Polymer ◽  
Synthetic Fiber ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites

In recent years, significant academic and industrial research and development has explored novel methods of creating green and environmentally friendly materials for commercial applications. Natural fibers offer the potential to develop lower cost products with better performance, sustainability, and renewability characteristics than traditional materials, particularly in the automotive industry. In this respect, natural fiber reinforced polymer composites have emerged as an environmentally friendly and cost-effective option to synthetic fiber reinforced composites. Hence, in this study, a review of the tribological behavior of natural fiber reinforced polymer composites has been undertaken to better understand their usability for various automotive applications.

Effect of Pretreatment Methods on Properties of Natural Fiber Composites: A Review

2016 ◽  
Vol 24 (7) ◽  
pp. 555-566 ◽  
Author(s):  
N. Venkatachalam ◽  
P. Navaneethakrishnan ◽  
R. Rajsekar ◽  
S. Shankar
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Volume Fraction ◽  
Fiber Composite ◽  
Agricultural Waste ◽  
Research Work ◽  
Natural Fibers ◽  
Synthetic Fiber ◽  
Fiber Reinforced ◽  
Chemical Treatments

India as a tropical agricultural country has great potential to develop and use fiber derived from agricultural waste. Natural fibers are an important by-product of extraction process and they can be used as reinforcement in composite products. Composites are developed with unsaturated polyester resin as the matrix with natural fiber as the reinforcement. The results show decreased strength and modulus with increasing the fiber volume fraction. This indicates ineffective stress transfer between the fiber and matrix due to lower adhesion. It is necessary to bring a hydrophobic nature to the fibers by suitable chemical treatments in order to develop composites with improved mechanical properties. In these review papers, different types of natural fibers are subjected to a variety of physical and chemical treatments. The types of treatments studied in these papers include Physical treatments such as beating and heating, and chemical treatments like alkalization, silane, acetylation and benzoylation. The effects of these treatments on mechanical properties of the composites are analyzed. Fractures are analyzed by using the scanning electron microscopy (SEM). Analysis by FTIR and DMA showed that physico-chemical changes of surfaces of treated natural fibers. In general, treatments to the fibers can significantly improve adhesion and reduce water absorption, thereby improving mechanical properties of the composites. The purpose of this review paper is to summarize the research work done on various pretreatments in the preparation of natural fiber reinforced composites and to highlight the potential use of natural fiber reinforced polymer composites in industry and its potential to replace the synthetic fiber composite and conventional materials in the future.

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