Investigation on improving banana fiber fineness for textile application

2019 ◽  
Vol 89 (21-22) ◽  
pp. 4398-4409 ◽  
Author(s):  
S Balakrishnan ◽  
GLD Wickramasinghe ◽  
UG Samudrika Wijayapala

The banana is one of the most commonly consumed fruits in Sri Lanka; after the fruit is harvested, the pseudostem is thrown down as waste. The banana pseudostem is a good source of natural fiber. The purpose of this project is to investigate the effects of banana fiber extraction, examine treatment parameters on fiber fineness and establish suitable methods to reduce the fineness that enable banana fibers to be used as textile materials. Ten popular Sri Lankan varieties of banana pseudostem were selected for this study. From the mechanically extracted banana fiber of these 10 varieties, Ambun (genome AAA) was selected for further analysis because it had the lowest fiber fineness. Four layers from the pseudostem of Ambun were extracted and put through a fineness and single fiber strength test. Scanning electron microscopy and fiber linear density were used to observe and determine the fineness of the enzyme and chemical treated banana fiber. The mechanical strength of the treated banana fibers was obtained by using a universal tensile tester machine. The test result showed the second and the third layers of the pseudostem to be the finest. The mechanically extracted fiber of the second and third layers of the pseudostem were put through an enzyme and chemical treatment. Results showed enzyme and chemical combined treated fibers to be the finest, with a reduced diameter from 168.4 µm to 48.8 µm, which is about 71% reduction compared to mechanical extraction.

2014 ◽  
Vol 775-776 ◽  
pp. 261-265 ◽  
Author(s):  
Sergio Neves Monteiro ◽  
Frederico Muylaert Margem ◽  
Foluke Salgado de Assis ◽  
Rômulo Leite Loiola ◽  
Michel Picanço Oliveira

Polymer matrix composites have been applied in components such as helmets and shielding for which toughness is a major requirement. A natural fiber presents interfacial characteristics with polymeric matrices that favor a high impact energy absorption by the composite structure. The objective of this work was then to assess the Izod impact resistance of polymeric composites reinforced with different amounts, up to 30% in volume, of a promising high strength natural fiber, the banana fiber. The results showed a remarkable increase in the notch toughness with the amount of incorporated banana fibers. This can be attributed to a preferential debonding of the fiber/matrix interface, which contributes to an elevated absorbed energy.


2021 ◽  
Vol 3 (2) ◽  
Author(s):  
P. Sivaranjana ◽  
V. Arumugaprabu

AbstractThe usage of banana natural fibers along with polymer matrix composites had created much interest among the researchers due to their low cost, easy availability, strength and enhancement in properties such as mechanical, wear, electrical and thermal. Banana plant is cultivated all over the world which is familiarly used as food products especially banana fruit as well as many household items made from banana fibers. The natural fiber extracted from the banana stem proves to be a potential reinforcement in the composite manufacturing. This review is very much needed because of the enormous research reported on the banana fiber reinforced polymer composites, with such an excellent property offered by this banana fiber reinforcement the impact of hybridization and its need also to be addressed. This brief review article gives a detail information about the combinations of various hybrid composites produced using the banana fiber along with various other natural/synthetic fibers in the polymer matrixes and its performance improvement especially in the mechanical and thermal properties. From the review it was inferred that 30–50% increase in all the mechanical properties such as Tensile, Flexural and Impact strength. Also in addition an enhancement in thermal and moisture resistance also noted. In addition during this review the research gap observed is that the development of bio composites based on banana fiber is very limited and also the influence of banana fiber along with bio resin needs to be studied. The properties such as fatigue, fire resistance also to be analyzed using the banana fiber reinforcement.


2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Nazrul Islam ◽  
M.A Gafur ◽  
Amir Hossain Khan

Fibers reinforced composite materials offer a combination of strength and modulus that are either comparable to or better than many traditional metallic materials. The research on natural fiber based composite materials fit well into this ecological image. This paper reports the conduction mechanism and ac conductivity, activation energy behavior of Polypropylene and banana fiber reinforced thermoplastic composites. Polypropylene [-CH2-CH2-CH2-]n and different fiber content (wt. %) of polypropylene-banana fibers (natural fiber) composites were fabricated using a hot-press molding system. The optimum fabrication parameters were established (initial pressure, temp. etc.). These composite test samples were fabricated so the short fibers were randomly oriented in the matrix. The detail investigation of the a. c. conductivity and conduction mechanism of polymer composites would provide information about the relaxation processes, activation energy etc. which are dependent on frequency, temperature and time. The activation energy involved in the above processes can also be estimated from this study. The measurements were performed over a wide range of frequency of 60 Hz to 3 MHz and temperature range from 30°C (303°K) to 110°C (383°K). Experimental results of the ac properties of pure polypropylene and polypropylene-natural banana fiber composites were compared. It has been established that the fabricated composition changes its insulating property after adding the natural fibers and gives the better conductivity properties.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Tuan Anh Nguyen ◽  
Thi Huong Nguyen

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.


2016 ◽  
Vol 857 ◽  
pp. 499-502 ◽  
Author(s):  
Sakorn Chonsakorn ◽  
Sutusanee Boonyophas ◽  
Rattanaphol Mongkholrattanasit ◽  
Kittiyaphan Pholam ◽  
Praditha Parsapratet ◽  
...  

Environmental awareness has created an increasing concern with the greenhouse cause and effect, it has simulated the need for a more natural and eco-friendly construction, formed from textile materials. Natural fibers seem to be a good alternative, as this research is focused upon the studies of the extraction of Hibiscus Tiliaceus fibers, found in abundance naturally. Since they are readily available and accessible in fibrous form, they can easily be extracted form the plant stem itself, which is a plant that grows naturally, with very low maintenance costs. In this research we have studied the strength of Hibiscus Tiliaceus, when extracting the fibers by hand. From this experiment, it was found that fiber was removed from the trunk of the plant, then the application of water rating could be used successfully for separating the extract fiber from the sheath of the Hibiscus Tiliaceus in turn. The microscopically longitudinal studies showed a roughness and also a flat surface in the fibers. The fiber width was recorded at 0.3 millimeter, as well as the fiber strength recorded at 651.9 denier and 10.93 newtons, respectively. There are three conditions of applications added for this natural fiber, which involve scouring and bleaching treatments.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abayomi A. Akinwande ◽  
Adeolu A. Adediran ◽  
Oluwatosin A. Balogun ◽  
Oluwaseyi S. Olusoju ◽  
Olanrewaju S. Adesina

AbstractIn a bid to develop paper bricks as alternative masonry units, unmodified banana fibers (UMBF) and alkaline (1 Molar aqueous sodium hydroxide) modified banana fibers (AMBF), fine sand, and ordinary Portland cement were blended with waste paper pulp. The fibers were introduced in varying proportions of 0, 0.5, 1.0 1.5, 2.0, and 2.5 wt% (by weight of the pulp) and curing was done for 28 and 56 days. Properties such as water and moisture absorption, compressive, flexural, and splitting tensile strengths, thermal conductivity, and specific heat capacity were appraised. The outcome of the examinations carried out revealed that water absorption rose with fiber loading while AMBF reinforced samples absorbed lesser water volume than UMBF reinforced samples; a feat occasioned by alkaline treatment of banana fiber. Moisture absorption increased with paper bricks doped with UMBF, while in the case of AMBF-paper bricks, property value was noted to depreciate with increment in AMBF proportion. Fiber loading resulted in improvement of compressive, flexural, and splitting tensile strengths and it was noted that AMBF reinforced samples performed better. The result of the thermal test showed that incorporation of UMBF led to depreciation in thermal conductivity while AMBF infusion in the bricks initiated increment in value. Opposite behaviour was observed for specific heat capacity as UMBF enhanced heat capacity while AMBF led to depreciation. Experimental trend analysis carried out indicates that curing length and alkaline modification of fiber were effective in maximizing the properties of paperbricks for masonry construction.


2021 ◽  
pp. 002199832098804
Author(s):  
TP Mohan ◽  
K Kanny

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.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Baneswar Sarker ◽  
Shankar Chakraborty

Purpose Like all other natural fibers, the physical properties of cotton also vary owing to changes in the related genetic and environmental factors, which ultimately affect both the mechanics involved in yarn spinning and the quality of the yarn produced. However, information is lacking about the degree of influence that those properties impart on the spinnability of cotton fiber and the strength of the final yarn. This paper aims to discuss this issue. Design/methodology/approach This paper proposes the application of discriminant analysis as a multivariate regression tool to develop the causal relationships between six cotton fiber properties, i.e. fiber strength (FS), fiber fineness (FF), upper half mean length (UHML), uniformity index (UI), reflectance degree and yellowness and spinning consistency index (SCI) and yarn strength (YS) along with the determination of the respective contributive roles of those fiber properties on the considered dependent variables. Findings Based on the developed discriminant function, it can be revealed that FS, UI, FF and reflectance degree are responsible for higher YS. On the other hand, with increasing values of UHML and fiber yellowness, YS would tend to decrease. Similarly, SCI would increase with higher values of FS, UHML, UI and reflectance degree, and its value would decrease with increasing FF and yellowness. Originality/value The discriminant functions can effectively envisage the contributive role of each of the considered cotton fiber properties on SCI and YS. The discriminant analysis can also be adopted as an efficient tool for investigating the effects of various physical properties of other natural fibers on the corresponding yarn characteristics.


2019 ◽  
Vol 56 (1) ◽  
pp. 26-36
Author(s):  
Muhammad Asghar Shah ◽  
Mubshar Hussain ◽  
Muhammad Shahzad ◽  
Khawar Jabran ◽  
Sami Ul-Allah ◽  
...  

AbstractIn cotton–wheat cropping system of Pakistan, wheat (Triticum aestivum L.) is harvested in late April; however, the optimum sowing time of Bt cotton is mid-March. This indicates a time difference of 4–6 weeks between the harvest of wheat and cotton sowing. It is hypothesized that this overlapping period may be managed by transplanting cotton seedlings (30–45 days old) in late April, after the harvest of wheat due to better performance of already established seedlings. To this end, this study was conducted to evaluate the allometric traits and fiber quality of transplanted Bt cotton after harvesting wheat in the cotton–wheat cropping system. The Bt cotton–wheat cropping systems were flat sown wheat (FSW)–conventionally tilled cotton, FSW–zero tilled cotton, ridge sown wheat–ridge transplanted cotton using 30- and 45-days-old seedlings, and bed sown wheat (BSW)–bed transplanted cotton (BTC) also using 30- and 45-days-old seedlings. The study was conducted at Vehari and Multan in Punjab, Pakistan. Bt cotton in BSW–BTC with 45-days-old seedlings showed better performance for allometric (leaf area index; (LAI), net assimilation rate; (NAR), and crop growth rate; (CGR)), seed cotton yield, and fiber traits (fiber uniformity, fiber length, fiber strength, and fiber fineness) in comparison to other treatments. Most of the fiber quality traits were positively correlated with allometric traits and biological yield (dry matter yield at maturity) at both locations, except correlations of CGR and LAI with fiber fineness and fiber length and NAR with fiber length. As plant growth and fiber quality of transplanted cotton was significantly higher than conventionally grown cotton, our data indicate transplanting is an interesting management practice for improving productivity in wheat–cotton cropping systems.


2021 ◽  
Author(s):  
Mira Chares Subash ◽  
Muthiah Perumalsamy

Abstract Banana Pseudo stem waste after each harvest contributes about 70–80 Milli Tons Per hector. The banana pseudo stem will be thrown as waste biomass after each harvest as it is unstable for the upcoming harvest. The biggest challenge in banana cultivation is the utilization of biomass of banana pseusostem waste into valuable products. In this study, Xylano-pectinase enzyme extract was produced from banana pseudo stem waste under solid-state fermentation by Enterobacter cloacae PMC04. The highest pectinase and xylanase activities obtained using banana pseudo stem as carbon source were 124.62 U/ml and 173.81 U/ml respectively. Thermodynamics stated that range 40-50oC were considered to be the optimal temperature for xylano-pectinase enzyme production and subsequent degumming of banana fibers. The crude enzyme extract were then used in the degumming of banana fibers for textile application. Textile processing of banana fiber necessitates the removal of hemicellulose substance which can be achieved by crude xylano-pectinase enzyme. It was found that crude xylano-pectinase was efficient in the removal of hemicellulose substance from the fibers. Results obtained from this study demonstrate that the proposed bioprocess could be successfully applied for the degumming of banana fibers sustainably.


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