scholarly journals Degradation of Polypropylene and Jute Fiber-Reinforced Composites Exposed to Natural and Accelerated Aging: Mechanical Properties and Wettability

Chemistry ◽  
2021 ◽  
Vol 3 (4) ◽  
pp. 1392-1400
Author(s):  
Paula Bertolino Sanvezzo ◽  
Fernanda Pereira de Castro Negreiros ◽  
Marcia Cristina Branciforti
Keyword(s):  
Environmental Sustainability ◽  
Natural Fiber ◽  
Accelerated Aging ◽  
Natural Aging ◽  
Fiber Reinforced Composites ◽  
Jute Fiber ◽  
Infrared Analysis ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Commercial Development

Population growth and the way resources are being exploited are directly affecting the environment. The natural fiber market, for example, is worth billions of dollars and a huge amount of the fibers becomes waste. This considerable amount of waste motivates the study of the fibers as a reinforcement in polymeric matrix, which benefits both the environmental sustainability and technical-commercial development of new materials with good properties and reduced cost. In this study, jute fiber-reinforced composites previously manufactured from an industrial waste (W), polypropylene, compatibilizer, and nano-calcium carbonate (N), were exposed to natural and accelerated aging. The composites were tested by infrared spectroscopy, contact angle (CA) measurement, and tensile test. Infrared analysis showed greater oxidative degradation after accelerated aging. All CA values continued above 90° after natural aging. Among all compositions, the ones with the presence of N had the highest CA values, showing that N acted as a waterproofing agent. After accelerated aging, a significant decrease in all CA values was observed. The composites did not show significant variation in the elastic modulus after either aging. Deformation at break decreased significantly for compositions with no jute fiber in both aging programs. No remarkable reduction was observed in the compositions with jute fibers.

Study on Chemical Treatments of Jute Fiber for Application in Natural Fiber Reinforced Composites (NFRPC)

2017 ◽  
Vol 4 (2) ◽  
pp. 21-26 ◽  
Author(s):  
Engr. Ojukwu Martins chubuike ◽  
Chukwunyelu Christian Ebele ◽  
Engr. Ilo Fidelis Ifeanyi ◽  
Ekwueme Solomon Okwuchukwu ◽  
Orizu Eziafa Festus
Keyword(s):  
Natural Fiber ◽  
Fiber Reinforced Composites ◽  
Jute Fiber ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Chemical Treatments

Frangibility Study of Natural Fiber Reinforced Composite Laminates

2016 ◽  
Vol 725 ◽  
pp. 88-93 ◽  
Author(s):  
Pushparaja ◽  
G. Balaganesan ◽  
Ramachandran Velmurugan
Keyword(s):  
Environmental Sustainability ◽  
Composite Laminates ◽  
Natural Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Compression Moulding ◽  
Moulding Process ◽  
Drop Mass ◽  
Set Up

Biodegradable composites are highly encouraged to replace the traditional composites to promote the frangibility and environmental sustainability. In this paper, impact response of natural fiber reinforced composites is carried out by using drop mass set-up. Sisal and coir fibers are reinforced in epoxy matrix and the laminates are made by compression moulding process. Experiments are conducted to predict energy absorption and peak contact force during impact of 6 kg mass. Results are analyzed to find suitability of natural fiber reinforced composites in order to derive the suitable materials for frangibility application.

Information in United States Patents on works related to ‘Natural Fibers’: 2000-2018

2019 ◽  
Vol 12 (1) ◽  
pp. 4-76 ◽  
Author(s):  
Krittirash Yorseng ◽  
Mavinkere R. Sanjay ◽  
Jiratti Tengsuthiwat ◽  
Harikrishnan Pulikkalparambil ◽  
Jyotishkumar Parameswaranpillai ◽  
...  
Keyword(s):  
United States ◽  
Composite Materials ◽  
Natural Fiber ◽  
Comprehensive Evaluation ◽  
Natural Fibers ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Macro Scale ◽  
Structural Applications

Background: This era has seen outstanding achievements in materials science through the advances in natural fiber-based composites. The new environmentally friendly and sustainability concerns have imposed the chemists, biologists, researchers, engineers, and scientists to discover the engineering and structural applications of natural fiber reinforced composites. Objective: To present a comprehensive evaluation of information from 2000 to 2018 in United States patents in the field of natural fibers and their composite materials. Methods: The patent data have been taken from the external links of US patents such as IFI CLAIMS Patent Services, USPTO, USPTO Assignment, Espacenet, Global Dossier, and Discuss. Results: The present world scenario demands the usage of natural fibers from agricultural and forest byproducts as a reinforcement material for fiber reinforced composites. Natural fibers can be easily extracted from plants and animals. Recently natural fiber in nanoscale is preferred over micro and macro scale fibers due to its superior thermo-mechanical properties. However, the choice of macro, micro, and nanofibers depends on their applications. Conclusion: This document presents a comprehensive evaluation of information from 2000 to 2018 in United States patents in the field of natural fibers and their composite materials.

Fracture Toughness of the Natural Fiber‐Reinforced Composites: A Review

2021 ◽  
pp. 293-304
Author(s):  
Haasith Chittimenu ◽  
Monesh Pasupureddy ◽  
Chandrasekar Muthukumar ◽  
Senthilkumar Krishnasamy ◽  
Senthil Muthu Kumar Thiagamani ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Natural Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced

Buckling analysis of natural fiber reinforced composites

2021 ◽  
Vol 7 (2) ◽  
pp. 58
Author(s):  
Celal Çakıroğlu ◽  
Gebrail Bekdaş
Keyword(s):  
Composite Plate ◽  
Natural Fiber ◽  
Low Cost ◽  
Natural Fibers ◽  
Experimental Studies ◽  
Fiber Reinforced Composites ◽  
Fiber Types ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Element Analysis

In the recent years natural fiber reinforced composites are increasingly receiving attention from the researchers and engineers due to their mechanical properties comparable to the conventional synthetic fibers and due to their ease of preparation, low cost and density, eco-friendliness and bio-degradability. Natural fibers such as kenaf or flux are being considered as a viable replacement for glass, aramid or carbon. Extensive experimental studies have been carried out to determine the mechanical behavior of different natural fiber types such as the elastic modulus, tensile strength, flexural strength and the Poisson’s ratio. This paper presents a review of the various experimental studies in the field of fiber reinforced composites while summarizing the research outcome about the elastic properties of the major types of natural fiber reinforced composites. Furthermore, the performance of a kenaf reinforced composite plate is demonstrated using finite element analysis and results are compared to a glass fiber reinforced laminated composite plate.

Strength and fracture toughness of earth-based natural fiber-reinforced composites

2015 ◽  
Vol 50 (9) ◽  
pp. 1145-1160 ◽  
Author(s):  
Kabiru Mustapha ◽  
Ebenezer Annan ◽  
Salifu T Azeko ◽  
Martiale G Zebaze Kana ◽  
Winston O Soboyejo
Keyword(s):  
Fracture Toughness ◽  
Natural Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced
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