Characterization of Epoxy Matrix Reinforced with Banana Fibers Thermal Properties by Photoacoustic Technique

2016 ◽  
Vol 869 ◽  
pp. 331-337
Author(s):  
Foluke Salgado de Assis ◽  
Frederico Muylaert Margem ◽  
Pedro Amoy Netto ◽  
Roberto da Trindade Faria Jr. ◽  
Thallis Custódia Cordeiro ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Epoxy Matrix ◽  
Natural Fibers ◽  
Photothermal Techniques ◽  
Banana Fiber ◽  
Technical Aspects ◽  
Synthetic Fibers ◽  
Lignocellulosic Fibers ◽  
Banana Fibers

Synthetic fibers are being replaced gradually by natural materials such as lignocellulosic fibers. Compared to synthetic fibers, natural fibers have shown advantages in environmental, societal, economical and technical aspects. Thus, there is a growing worldwide interest in the use of those fibers. The banana fiber, extracted from the pseudo-stem of the plant, displays significant properties yet to be studied. Few thermal properties on banana fiber as reinforcement of epoxy matrix were fully evaluated. Therefore, the present work had as its objective to investigate, by photoacoustic spectroscopy and photothermal techniques the thermal diffusivity, specific heat capacity and thermal conductivity of epoxy composites reinforced with banana fibers .The epoxy matrix was added with up to 30% in volume of continuous and aligned banana fibers. The results indicated that these composites have good insulation capacity.

Surface Modification of Banana Fiber and its Influence on Performance of Biodegradable Banana-Cassava Starch Composites

2019 ◽  
Vol 895 ◽  
pp. 15-20
Author(s):  
Raghavendra Subramanya ◽  
S.S. Prabhakara
Keyword(s):  
Mechanical Properties ◽  
Surface Modification ◽  
Alkali Treatment ◽  
Natural Fibers ◽  
Cassava Starch ◽  
Banana Fiber ◽  
Synthetic Fibers ◽  
Lignocellulosic Fibers ◽  
Biodegradable Composites ◽  
Banana Fibre

Natural fibers, in particularly lignocellulosic fibers are attracting material scientists now days, due to their comparative advantages over synthetic fibers. Biodegradable composites reinforced with short banana fibre after alkali treatment along with cassava starch matrix were prepared using the hot compression method. The mechanical properties like tensile strength and impact strength were investigated. Mechanical properties of the composites made from alkali treated fibres were superior to the untreated fibres. SEM observations on the fracture surface of composites showed that the surface modification of the fibre occurred and improved fibre–matrix adhesion. Keywords: Surface modification; banana fiber; Biodegradable composites; Mechanical properties; Matrix.

Characterization of Banana Fibers Functional Groups by Infrared Spectroscopy

2014 ◽  
Vol 775-776 ◽  
pp. 250-254 ◽  
Author(s):  
Sergio Neves Monteiro ◽  
Frederico Muylaert Margem ◽  
Rômulo Leite Loiola ◽  
Foluke Salgado de Assis ◽  
Michel Picanço Oliveira
Keyword(s):  
Infrared Spectroscopy ◽  
Functional Groups ◽  
Natural Fibers ◽  
Chemical Properties ◽  
Microscopic Analysis ◽  
Banana Fiber ◽  
Characterization Methods ◽  
Actual Application ◽  
Banana Fibers

A number of methods are available for characterization of the structural, physical, and chemical properties of natural fibers. Various methods are used for fiber identification like microscopic analysis, solubility, heating and burning technique density, staining etc. End-use property characterization methods often involve use of laboratory techniques which are adapted to simulate actual application as composite reinforcement. One of the techniques used on this kind of studies is the infrared spectroscopy. In fact, Fourier Transform Infrared (FTIR) spectroscopy is a valuable tool in the determination of functional groups actively interacting within a fiber. In this work, the banana fiber was evaluated by FTIR to reveal these functional groups and compare to similar works on other different types of banana fibers.

scholarly journals Banana Fiber-Reinforced Epoxy Composites: Mechanical Properties and Fire Retardancy

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Tuan Anh Nguyen ◽  
Thi Huong Nguyen
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Natural Fiber ◽  
Average Length ◽  
Natural Fibers ◽  
Structural Morphology ◽  
Banana Fiber ◽  
Limiting Oxygen Index ◽  
Banana Fibers ◽  
Ecological Concern

Currently, the growing field of technology has paved the way for using environmental friendly resources; in particular, plant origin holds ecological concern and renewable aspects. Currently, natural fiber composites have widening attention, thanks to their eco-friendly properties. In the present work, the composite material is reinforced with natural fibers from the bark of banana trees (banana fibers), a material available in Vietnam. Banana fibers are extracted from banana peels, pretreated with NaOH 5%, and then cut to an average length of 30 mm. Banana fiber is reinforced for epoxy resin Epikote 240 with mass percents: 10 wt.%, 15 wt.%, 20 wt.%, and 25 wt.%. The results were evaluated through structural morphology (SEM), mechanical properties, fire resistance, and thermal properties. Experimental results show that the tensile, compressive, and impact strengths of biosynthetic materials up to 20% by weight have increased compared to epoxy neat. Flame retardant and thermal properties are kept stable; 20 wt.% banana fiber gives a limiting oxygen index of 20.8% and satisfactory thermal stability.

Processing of high weight fraction banana fiber reinforced epoxy composites using pressure induced dip casting method

2021 ◽  
pp. 002199832098804
Author(s):  
TP Mohan ◽  
K Kanny
Keyword(s):  
Matrix Composite ◽  
Epoxy Polymer ◽  
Epoxy Composite ◽  
Matrix Material ◽  
Natural Fibers ◽  
Weight Fraction ◽  
Polymer Composite Material ◽  
Fiber Reinforced ◽  
Banana Fiber ◽  
Banana Fibers

The objective of this work is to realize new polymer composite material containing high amount of natural fibers as a bio-based reinforcement phase. Short banana fiber is chosen as a reinforcement material and epoxy polymer as a matrix material. About 77 wt.% of banana fibers were reinforced in the epoxy polymer matrix composite, using pressure induced fiber dipping method. Nanoclay particles were infused into the banana fibers to improve the fiber matrix interface properties. The nanoclay infused banana fiber were used to reinforce epoxy composite and its properties were compared with untreated banana fiber reinforced epoxy composite and banana fiber reinforced epoxy filled with nanoclay matrix composite. The surface characteristics of these composites were examined by electron microscope and the result shows well dispersed fibers in epoxy matrix. Thermal (thermogravimetry analysis and dynamic mechanical analysis), mechanical (tensile and fiber pullout) and water barrier properties of these composites were examined and the result showed that the nanoclay infused banana fiber reinforced epoxy composite shows better and improved properties. Improved surface finish composite was also obtained by this processing technique.

Preparation and Mechanical Characterization of Jute-PP and Coir-PP Bio-Composites

2015 ◽  
Vol 766-767 ◽  
pp. 122-132
Author(s):  
Tippusultan ◽  
V.N. Gaitonde
Keyword(s):  
Mechanical Properties ◽  
Research Work ◽  
Natural Fibers ◽  
Weight Ratio ◽  
Synthetic Fiber ◽  
Synthetic Fibers ◽  
Fiber Loading ◽  
High Initial Cost ◽  
Full Factorial

Polymers reinforced with synthetic fibers such as glass and carbon offer advantages of high stiffness and strength to weight ratio compared to conventional materials. Despite these advantages, the prevalent use of synthetic fiber-reinforced polymer composite has a tendency to demur because of high initial cost and most importantly their adverse environmental impact. On the contrary, the increased interest in using natural fibers as reinforcement in plastics to substitute conventional synthetic fibers in automobile applications has become one of the main concerns to study the potential of using natural fibers as reinforcement for polymers. In this regard, an investigative study has been carried out to make potential utilization of natural fibers such as Jute and Coir as reinforcements, which are cheap and abundantly available in India. The objective of the present research work is to study the effects of fiber loading and particle size; fiber loading and fiber length on the mechanical properties of Jute-PP and Coir-PP bio-composites respectively. The experiments were planned as per full factorial design (FFD) and response surface methodology (RSM) based second order mathematical models of mechanical properties have been developed. Analysis of variance (ANOVA) has been employed to check the adequacy of the developed models. From the parametric analysis, it is revealed that Jute-PP bio-composites exhibit better mechanical properties when compared to Coir-PP bio-composites.

Characterization of Curaua Fibers by Infrared Spectroscopy

2014 ◽  
Vol 775-776 ◽  
pp. 325-329 ◽  
Author(s):  
Sergio Neves Monteiro ◽  
Frederico Muylaert Margem ◽  
Noan Tonini Simonassi ◽  
Rômulo Leite Loiola ◽  
Michel Picanço Oliveira
Keyword(s):  
Infrared Spectroscopy ◽  
Natural Fibers ◽  
High Strength ◽  
Relevant Information ◽  
Lignocellulosic Fibers ◽  
The Fourier Transform ◽  
Curaua Fibers ◽  
Physical And Chemical ◽  
Curauá Fiber

Natural fibers obtained from plants are being investigated as possible engineering materials with application in polymer composite reinforcement. For instance, the lignocellulosic fibers extracted from the leaves of the curaua plant (Ananas erectifolius) display a reinforcement potential owing to their relatively high strength. However, the curaua fiber has a poor adhesion with the polymeric matrix. In order to understand the curaua fiber interaction with a polymer matrix, the physical and chemical characteristics need to be evaluated. Among these characteristics, the Fourier transform infrared spectroscopy (FTIR) provides relevant information about the functional molecular groups and their possible interaction. Therefore, the objective of the present work was to analyze the FTIR of curaua fibers by means of transmittance spectrum obtained in the FTIR method with a 60o angle. The results showed peaks corresponding to specific molecular interaction that are discussed and compared to other results.

scholarly journals Characterization of a New Fiber From Cyperus Dichrostachus A.Rich Plant

2021 ◽  
Author(s):  
BELETE BAYE GELAW(Lecturer) ◽  
Tamrate Tesfaye(D.r)
Keyword(s):  
Energy Requirement ◽  
Natural Fibers ◽  
Vital Role ◽  
Synthetic Fiber ◽  
Cellulose Content ◽  
Competitive Advantages ◽  
Synthetic Fibers ◽  
Renewable Biomass ◽  
Potential Benefits

Abstract Natural fibers are of the good substitute sources for swapping synthetic fibers and reinforcing polymer matrices because of their contributions in maintaining of ecology, low energy requirement for processing and sustainability. The aim of this study is to characterize new fiber from Cyperus Dichrostachus A.Rich (CDA) plant. The CDA plant is a perennial non woody grass found in Ethiopian high lands and river basins. The fiber from this plant has good chemical composition of Cellulose (60.27%), hemicellulose (22.72%), lignin (16.59%) contents. It is light fiber having a density of 1010kg/m3 and good tenacity behaviour of 105.76cN/Tex with low elongation of 4.88%. The thermal stability of Cyperus Dicrostachys A,Rich fiber (CDAF) was studied using TGA and DTG analysis and revealed that the cellulose degraded at a temperature of 377.1°C. Fourier transform-infrared spectroscopy analysis confirmed that CDAF is rich in cellulose content. Furthermore, the properties of CDAF ensured that it can play a vital role as new reinforcement material and best alternative in bio composite industries. This will give competitive advantages when evaluated with other natural fibers reveals that there are significant potential benefits in implementation of “cleaner production” in textile material production industries. Specifically, replacement of synthetic fiber source with renewable biomass will reduce the environmental impact of these fibers. The future study will entail on investigating the possible valorization route especially in paper board, composite reinforcement and bio composite applications.

scholarly journals Finite Element Analysis of Beams Reinforced with Banana Fiber Bars (BFB)

Fibers ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 52 ◽  
Author(s):  
Amgad Elbehiry ◽  
Marwan Mostafa
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Building Materials ◽  
Natural Fibers ◽  
Construction Materials ◽  
Element Analysis ◽  
Banana Fiber ◽  
Finite Element Program ◽  
Element Program

One of the challenges of the century is to reach compatibility between the required resistance and the usage of lightweight building materials that may negatively affect the mechanical properties. Natural fibers nowadays are used as enhancers in the industrial field. Hence, the fibers contribute by giving an ideal solution to improve mechanical proprieties of the structural elements such as tensile and impact strength. In previous studies, the use of natural fibers as reinforcement in construction materials has increased. Natural fibers have a lot of characteristics such as being strong, lightweight, inexpensive, and eco-friendly. This paper aims to investigate the performance of banana fiber bars (BFB) as reinforced material. Through this study, the development and characterization of natural fibers-based composite beams were observed. After the beams were designed, several types of finite element analysis were conducted using ‘ANSYS’ nonlinear finite element program under one-point loading. Results show good correlations between experimental and predicted results.

Characterization of Epoxy/Steel Fibres Composites for Hybrid Injection Moulds

2012 ◽  
Vol 730-732 ◽  
pp. 277-282 ◽  
Author(s):  
Janaina L. Leite ◽  
Gean V. Salmoria ◽  
Carlos H. Ahrens ◽  
António Sergio Pouzada
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Optical Microscopy ◽  
Epoxy Matrix ◽  
Mechanical And Thermal Properties ◽  
Epoxy System ◽  
Steel Fibres ◽  
Hybrid Injection ◽  
Short Steel Fibres

Metallic fibres in polymeric matrix are used for mouldings blocks of hybrid injection moulds improving the mechanical and thermal properties. This paper reports on the characterization of epoxy resin/short steel fibres (SSF) composites. The effect of the concentration of 2,4,6-tris (dimethylamino-methyl) phenol as accelerator in the epoxy system was evaluated by viscosity and dynamical mechanical analyses. The composites were characterized by compression and microhardness tests. The fibres dispersion into the epoxy matrix was analysed by optical microscopy. It was found that the best accelerator concentration for this type of composite was 5,0 parts by weight

Comparison of Mechanical Properties of Banana Fibers Reinforcement in Different Thermoset Matrix Composites

2020 ◽  
Vol 1012 ◽  
pp. 20-25
Author(s):  
Fabio da Costa Garcia Filho ◽  
Michelle Souza Oliveira ◽  
Foluke Salgado de Assis ◽  
Artur Camposo Pereira ◽  
Fernanda Santos da Luz ◽  
...  
Keyword(s):  
Polymer Matrix Composites ◽  
Low Cost ◽  
Interfacial Strength ◽  
Matrix Composites ◽  
Banana Fiber ◽  
Lignocellulosic Fibers ◽  
Banana Fibers ◽  
Microscopic Evaluation ◽  
Strength Tests ◽  
The Matrix

Banana fibers are among the natural lignocellulosic fibers with greater potential for use as reinforcement in polymer matrix composites. Attractive mechanical and physical properties as well as low cost of production are considered as the main advantages on the use of such fibers. This works aims to study the mechanical behavior of the banana fiber when used as filler to the two most commonly used thermoset matrices (epoxy and polyester). The specimens were produced with up to 30 vol% of banana fibers for both polymeric matrices. Tensile strength tests as well as macroscopic and microscopic evaluation of the fractured surface were carried out. It was shown that, indeed, the banana fiber provided a substantial reinforcement for both matrices. On the other hand, mechanical strength associated with the composite epoxy/banana was more than 50% higher than the exhibit by the polyester/banana one. Such behavior could be associated with the interfacial strength regarding the fiber and the matrix.

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