Use Of Coconut Fiber Research Articles

COMBINATION OF MACRAME AND ECO POUNDING WITH COCONUT FIBER DYEING FOR LAMP SHADE

This design is motivated by the use of coconut fiber, which in general the community uses it as fuel and is considered a disturbing waste and causes buildup as coconut production increases. Technological developments and public awareness to return to natural materials will make coconut coir used as a natural dye for fibers (cloth or rope). The use of natural coconut fiber dyes is not widely known even though it has considerable potential to be developed and has a high selling value. The design method used in this design uses the theory of S.P Gustami which consists of 3 stages: namely exploration, design, and embodiment of the work. The exploration stage includes extracting sources of ideas about macrame, eco pounding, lamps and coconut coir. The design stage includes the selection of materials, techniques, and the visual form of the work. The final stage is the embodiment of the work. The final result of this design is in the form of six alternative designs, one of which was chosen to be realized. The realization of the work is in the form of a decorative lampshade on the table which has a function not only as lighting, but also as a decorative element and can beautify a room. This lampshade is presented by applying a combination of macrame and eco pounding techniques which are the novelty of this product. The use of natural coconut coir dyes is one way to preserve the environment.

COMPOSITE VOICE-ABSORBING MATERIALS MADE OF POLYESTER-REINFORCED PARTICLES WASTE GLASS PLASTIC AD BIOCOMPOSITE FIBER

Natural fiber as a sound-absorbing biocompisite material is believed to not only reduce noise pollution but also to absorb heat. There are many underutilized coconut husks, which so far the use of coconut husks is only conventional. The focus of this research is to find the right solution in the use of coconut fiber as well as composite material engineering for technological purposes. The research method will use pure experiments using controlled specimens in the mechanical Engineering laboratory of ITB, including mechanicals tests, soundproofing. The results of he tensile test are the tensile strength of the largest coconut fiber composite fiber is found in the fiber volume fraction of 25% with a value of 59.072 Mpa, followed by 20% fiber fraction with a value of 59.025 Mpa, 15% fiber fraction with a value of 56.736 Mpa, fiber fraction 10% with a value of 56.807 Mpa, 5% fiber fraction with a value 53.736. and for he results of the soundproof test with frequency of 250 Hz – 2000 Hz at 5% fiber fraction, it has an absorption coefficient value of 0,03, 10% fiber fraction, has an absorption coefficient value of 0.18, 15% fiber fraction has an absorption coefficient value of 0.18. 0.18, the fiber fraction of 20 has an absorption coefficient of 0.22, the fiber fraction of 25% has an absorption coefficient of 0.28.

A Review of the Use of Coconut Fiber in Cement Composites.

The use of plant fibers in cementitious composites has been gaining prominence with the need for more sustainable construction materials. It occurs due to the advantages natural fibers provide to these composites, such as the reduction of density, fragmentation, and propagation of cracks in concrete. The consumption of coconut, a fruit grown in tropical countries, generates shells that are improperly disposed of in the environment. The objective of this paper is to provide a comprehensive review of the use of coconut fibers and coconut fiber textile mesh in cement-based materials. For this purpose, discussions were conducted on plant fibers, the production and characteristics of coconut fibers, cementitious composites reinforced with coconut fibers, cementitious composites reinforced with textile mesh as an innovative material to absorb coconut fibers, and treatments of coconut fiber for improved product performance and durability. Finally, future perspectives on this field of study have also been highlighted. Thus, this paper aims to understand the behavior of cementitious matrices reinforced with plant fibers and demonstrate that coconut fiber has a high capacity to be used in cementitious composites instead of synthetic fibers.

Biometrics and physiological parameters of sour passion fruit seedlings produced on organic substrates

The organic fruit market has expanded considerably in recent years, but for the establishment of more productive organic orchards, several aspects need to be studied, starting with obtaining good quality seedlings. In this work, different formulations of organic substrates were evaluated to select the one that provides greater vigor to Passiflora edulis Sims seedlings. The study was conducted under anti-aphid screen conditions in two regions of Bahia (Recôncavo da Bahia, Chapada Diamantina), using a completely randomized design. The substrates were prepared using different proportions of coconut fiber, vermiculite, bovine manure and bokashi. At 60 days after sowing, germination vigor, gas exchange and growth parameters were evaluated. The data were submitted to principal component analysis and the groups formed were represented by box plots and compared by the Tukey test. Three groups were formed from PCA for the seedlings produced in both regions and the joint analysis, considering the two environments. In Chapada Diamantina, the seedlings produced in group 1, corresponding to 40% of the substrates tested, stood out for their root characteristics. In Recôncavo da Bahia, the seedlings showed low variation between the treatments G1C and G2C (80% substrates), compared to the G3C seedlings. The best performance was observed in the seedlings produced in Chapada Diamantina, but the use of coconut fiber and soil (CfSB), vermiculite and soil (SVB), both with 5% bokashi, produced excellent seedlings in both regions, so it is recommended for the organic production of P. edulis

Kinetic, thermodynamic and physical-chemical study of the removal of copper from cachaça using coconut fibers

The use of coconut fiber as a copper adsorbent in cachaça was optimised, and changes in the chemical quality of the beverage were observed by analytical techniques. The influence of the adsorbent mass and copper concentration parameters was investigated using the Central Composite Design, and the optimum condition was obtained through the use of Response Surface Methodology. The equilibrium of the adsorption reaction was obtained within 120 min. The kinetic data were better adjusted for the Elovich model (Elovich and Zhabrova 1939) and the isotherm data for the Sips model (Sips 1948). The maximum adsorption capacity was 1.38 mg g−1. Slight changes in the physicochemical quality of the beverage were observed, including a decrease in volatile acidity and alcohol content. Copper levels in cachaça decreased from 8.57 mg L−1 to 4.97 mg L−1 after adsorption. Therefore, the use of biomass as a metal ion adsorbent in beverages can be successfully employed.

The Use of Coconut Fiber Padded Seat in Reducing Vibration and Fatigue of Bus Drivers

Introduction: Environmental factors such as vibration can affect work fatigue. The previous research results showed that there was a relation between vibration and fatigue, with the use of ergonomic seats by bus drivers. Then conducting experimental research on making ergonomic seat padding made from coconut fiber to reduce the level of vibration and driver fatigue was investigated. The purpose of this research was to analyze the differences in seating vibrations and the bus driver fatigue who did not use a padding seat and one who used it. Methods: The research design was experimental. The research subjects were 42 bus drivers. The vibration intensity was measured using a vibrometer and work fatigue was measured using a reaction timer, then the data were analyzed by T-test. Results: Based on research results the vibration of bus drivers who did not use seat padding was greater than those who did (p=0.001). Those who used seat padding had lower mean fatigue than drivers who did not use it (p=0.001). Conclusion: Vibration and work fatigue in bus drivers who did not use a padding seat was greater than those who used it and the difference was statistically significant. The use of ergonomic seating for bus drivers was very useful for reducing vibration.

Development of coconut fiber-corn cub ash hybrid reinforced polyvinyl chloride composites for shoe sole application

ABSTRACT This research investigates the microstructural, mechanical, and physical properties of polyvinyl chloride (PVC) matrix reinforced with coconut fiber (CF) and corn cob ash (CCA) as potential composite materials for shoe sole production. The reinforcement materials were treated and characterized before incorporation into the matrix phase (PVC). The composite samples had varying CF and CCA proportions within the range of 2–20 wt%. The results of the examinations carried out revealed that the presence of CF enhances the properties of the developed composites. Sample from 20 wt% coconut fiber-reinforced PVC had the optimum properties with ultimate tensile strength of 47.00 MPa, tensile modulus of 3.52 GPa, hardness of 81.00 HS, and wear index of 0.06 mg among all the samples produced while composites with 15 wt% CF–5 wt% CCA showed the best flexural strength of 48.60 MPa, flexural modulus of 3.77 GPa, and impact strength of 94.30 J/m2. Hence, high proportion of CF in both composites supports the use of coconut fiber as reinforcement in PVC for shoe sole application where high flexibility and good impact resistance are essential.

Augmentation of Coconut Fiber with Ground Granulated Blast Furnace Slag Reinforced Light Weight Aggregated Concrete: A Review

Natural fibers are environmentally friendly, cost-effective, lightweight, renewable, and have high thermal stability with corrosion resistance capabilities. The addition of natural fibers with ground granulated blast furnace slag (GGBS) in light weight aggregate concrete (LWAC) will be a long-term step toward improving mechanical properties and encouraging green construction. Coconut fibers are the least expensive of all-natural fibers and are widely available in a several developing countries. This study describes the impact of using coconut fibers in LWACs for sustainable construction. The effect of coconut fiber and GGBFS on the mechanical strength of LWACs including compressive strength, split tensile strength, and flexural strength, is reported. The effect of varying coconut fiber length and content on the mechanical strength of LWACs has been described, and optimum coconut fiber length and content have been reported. The current research initiative aims to increase understanding of the issues and challenges encountered during the production of coconut fiber reinforced GGBS with LWACs. In this study, it was determined that incorporating coconut fibers with GGBS can improve the strength properties of LWACs when used in shorter lengths and lower volume contents, whereas higher volume contents of coconut fibers degraded the strength properties of LWACs. Furthermore, current research on the practical applications of coconut fiber reinforced LWACs is quite limited, and more research is required in the future to determine their applications in civil engineering construction. Moreover, this review will aid in the promotion of the use of coconut fiber in the green construction of LWACs with the addition of GGBS.

Effect of coconut fiber treatment with limestone water media on the fiber surface, wettability, and interface shear strength

The development of technology has increased the need for composite materials, where the technology of composite materials with natural fiber reinforcement is growing. The existence of natural fiber is very abundant, and it has not been fully utilized. Until now, the use of coconut fiber was still limited to the furniture and household handicraft industries. Coconut coir fiber has the potential as a raw material for composite materials. The lack of strength of the bonds is due to the hydrophobic fiber, and the fiber surface is less rough, and dirty. This study evaluates the coir surface characteristic of the fiber and its bounding with the polyester matrix after being treated by limestone water. The scanning electron microscope was used for observing fiber surfaces and surface matrix. The wettability test to observe fiber surface energy was performed. Interface shear strength to evaluate the bonds between fibers and matrix was determined. Coconut coir fibers were immersed in limestone water, with a 5 % percentage of limestone and time variations of 0, 4, 8, 12, 16, and 20 hours. The scanning microscope electron observations of fibers show that the fiber surface tends to be clean, rough, and grooved. The highest surface energy was obtained at 40.74 mN/m during the limestone water immersion for 8 hours. The highest value of the interface shear strength between the fiber and the matrix is 3.80 MPa during 8-hour immersion, 0, 4, 12, 16, and 20-hour immersion, respectively, 3.02, 3.09, 3.52, 3.47, and 4.40 MPa. The results showed that coir fiber with limestone water immersion for 8 hours had a clean, rough, and grooved surface so that the bond between the fiber and matrix was better. This research shows that limestone water can be used as a fiber treatment medium which was natural

Wood walls insulated with coconut fiber

Solid wood gives the shape to walls, while panels are the coating and they are nailed or screwed to the wood sections. In the cavities between the wood elements and the panels, a thermal and acoustic insulator must be added. Unfortunately, almost all of the currently used insulators (mineral wool, expanded polystyrene, polyurethane) are not biodegradable and require the use of vapor barriers (polyethylene sheets, aluminum foils, etc.) that deteriorate rapidly and that are relatively environmentally unfriendly. In this article, the use of coconut fiber instead of conventional insulators is suggested. The acoustic absorption and thermal conductivity coefficients of composite sections taken from wood walls with coconut fiber are estimated. In this way, good thermo-acoustic conditions inside the wood building are achieved using an ecological insulating material.

Response of Bell Pepper to Rootstock and Greenhouse Cultivation in Coconut Fiber or Soil

Vegetable production in greenhouses is preferred when soil quality is degraded by high salinity or incidence of pests and diseases. In these soils with abiotic and biotic issues, it is a challenge to increase the yield and quality of fruits. The use of rootstocks and organic substrates are effective and environmentally friendly techniques to solve that challenge. The objective was to study the effect of rootstocks on yields and quality in bell peppers (Capsicum annuum L.) grown in either soil or coconut fiber substrate, in greenhouses. Using a randomized block design with three repetitions, the resulting treatment groups consisted of three rootstocks (Foundation-F1, Yaocali-F1, CLX-PTX991-F1 (Ultron), and non-grafted controls) with four hybrids as scions (Lamborghini, Bambuca, DiCaprio, and Ucumari). The yield of fruit per plant (YFP) and number of fruit per plant (NFP) obtained in coconut fiber were 85% and 55% greater, respectively, than in soil. The CLX-PTX991-F1 rootstock was superior to the hybrids without rootstock (p ≤ 0.05) in YFP and NPF (30% and 19.5%, respectively). The Lamborghini hybrid had significantly greater YFP and NFP than the Ucumari. We concluded that the use of coconut fiber significantly improves the yields of bell pepper and that the use of rootstock improves plant vigor and plant yield.

PEMANFAATAN SERABUT KELAPA DALAM MENINGKATKAN KUALITAS PUPUK ORGANIK DARI AMPAS TAHU

Organic fertilizer production with the use of coconut fiber to improve the quality of organic fertilizer has been done. This study aims to determine the increase in the quality of organic fertilizer pulp by utilizing coconut fibers in increasing the porosity of raw materials. Utilizing combination EM4 bioindicator and Starbio bioindicator to improve the process of decomposition of organic matter are applied in this research. This research use experiment method by comparing the quality of the fertilizer from tofu dregs only with the quality of the fertilizer tofu dregs that is adding by massa variations of coconut fibers. Bioindikator combination of EM4 and starbio also studied in this research. The result of this research showed that by using 7.5 grams of coconut fibers can increase the organic matter decomposition process. Combination of EM4 bioindicator and Stabio bioindicator also can increase decomposition process so the percentage of organic material in the organic fertilizer are on the threshold by SNI, namely 54,72%.Kata Kunci: ampas tahu, fermentasi, pupuk, serabut kelapa

Fibras de Cocos nucifera como sorvente de petróleo em ambiente marinho

Os principais impactos ambientais causados por atividades petrolíferas são decorrentes de atividades de exploração, transporte e refino. Após o acidente do Golfo do México em 2010, aumentou a preocupação ambiental global em desenvolvimento de métodos e materiais que tenham capacidade de remover, recuperar e degradar o petróleo. O presente estudo objetivou aproveitar o resíduo de coco (Cocos nucifera L.) como sorvente em derramamento de óleo no ambiente marinho. Os resultados evidenciaram que, além da boa capacidade de sorção de óleo com grande presença de n- alcanos, o uso da fibra de coco sem tratamento térmico é melhor, enquanto a fibra de coco com tratamento térmico é mais adequada para óleo com grande presença de resinas e asfaltenos.

Production of gherkin seedlings in coconut fiber fertirrigated with different nutrient solutions

ABSTRACT Seedling quality is a key factor to achieve success in vegetable production. The present work aimed to evaluate the production of gherkin seedlings in substrate of coconut fiber fertirrigated with different concentrations of nutrients. The experimental design was completely randomized in a 3 × 5 factorial with four replications. The treatments consisted of combinations of three cultivars of gherkin (Do Norte, Liso de Calcutá, e Liso Gibão) with five concentrations of nutrients in the solution (0, 25, 50, 75, and 100%). The nutrient solution, considered standard, matches the recommended solution for melon in hydroponic systems. We evaluated the variables: chlorophyll index, shoot length, number of leaves, stem diameter, main root length, dry weight of leaves, roots, and stem, mass of total dry matter, leaf area, specific leaf area, and leaf area ratio. All variables were affected by the ionic concentration in nutrient solutions. The use of coconut fiber in the production of gherkin seedlings is more efficient with nutrient solutions in concentrations ranging from 75 to 100% of the recommended solution for melon cultivation.

Self compacting reinforced concrete beams strengthened with natural fiber under cyclic loading

The present work focuses on the use of coconut fiber in self compacting concrete. Self-Compacting Concrete (SCC) is a highly flowable, stable concrete which flows readily into place, filling formwork without any consolidation and without undergoing any significant segregation. Use of fibers in SCC bridge the cracks and enhance the performance of concrete by not allowing cracks to propagate. They contribute to an increased energy absorption compared to plain concrete. Coconut fiber has the highest toughness among all natural fibers. It is known that structures in the seismic prone areas are always under the influence of cyclic loading. To justify the importance of strengthening SCC beams with coir fiber, the present work has been undertaken. A comparison is made between cyclic and static loading of coconut fiber reinforced self compacting concrete (FRSCC) members. Using the test data obtained from the experiment, hysteresis loops were drawn and comparison of envelope curve, energy dissipation, stiffness degradation were made and important conclusions were draw to justify the use of coconut fiber in SCC.

THERMAL CONDUCTIVITY, COMPRESSIVE STRENGTH AND WATER ABSORPTION OF RECYCLED COCONUT FIBRE AND CRUSHED CLAY BRICK MASONRY

This study aims to investigate the thermal conductivity, compressive strength and water absorption analysis of recycled masonry bricks using coconut fiber and crushed clay bricks as a partial sand replacement to create a green building material. The variable ratios of coconut fiber were considered and 10 specimens per sample were manufactured manual process using hand. Four (4) series of brick mix design from the total weight of the sand with different levels of coconut fiber and crushed clay brick replace half of the sand was created as irregular mixes comprises of 0%, 2%, 4% and 6% of coconut fiber. Overall, the use of coconut fiber and crushed clay brick as a partial sand replacement reduce the brick thermal conductivity. Thermal properties were measured based on the transient line heat source method using a KD2 Pro thermal properties analyzer. The suitable percentage of partial sand replacement for sand-cement brick using coconut fiber in this study was 4% and 50% of crushed clay brick after compared to commercial brick. The average sample of 4% coconut fiber was 0.532 W/mk of thermal conductivity and 18.74MPa compressive strength with density of 1716.28 kg/m3. In short, the thermal insulation potential of coconut fiber and crushed clay brick is highly promising for commercial development in Malaysia.

Use of Coconut Fiber As Reinforcement in Bamboo Leaf Ash Blended Cement - Based Composite Panels

Use of Coconut Fiber As Reinforcement in Bamboo Leaf Ash Blended Cement - Based Composite Panels

Coir Fiber Reinforced Concrete

Green approach refers to a use of natural and renewable source of energy replacing or reducing environmentally unfriendly materials like steel. The present study discusses about the importance of coconut fiber as an ad-mixture for roofing, its advantages and scope in future. As we all know, steel is used as a reinforcing material for holding the concrete and making it crack resistant. But, due to its number of demerits, which includes its high cost, nonrecyclability,corrosiveness, high weight and low strength ratio, with time, a number of innovations have taken place. ‘‘Textile Composites’’ entertains the use of coconut fiber, which can also be used as a strengthening material for roofing apart from steel. Two inherently different materials out of which one belongs to textiles are mixed to form a new material, different to both but better in properties are called as textile composites. Use of coconut fiber (Coir) should be valued over Steel for the following reasons like low cost, recyclability, noncorrosiveness, low thermal conductivity (natural cooling), high strength and low weight ratio. In earthquake prone areas where frequent damage to infrastructure takes place, the use of Natural fibers such as Coir instead of steel will prove advantageous. In this paper, we will be focusing on the above-mentioned points in detail and our research work will prove that use of coconut fiber in roofing proved to be very lucrative.

Flame retardancy of starch–based biocomposites — aluminum hydroxide-coconut fiber synergy

The use of coconut fiber (CF) agricultural waste was considered as an environmentally friendly and inexpensive alternative in flame retarded biocomposites. To decrease the high content of aluminum trihydrate (ATH) required, the thermal decomposition (thermogravimetry), flammability [oxygen index (LOI) and UL 94 test] and fire behavior (cone calorimeter) of a combination of CF and ATH were investigated in a commercial blend of thermoplastic starch (TPS) and cellulose derivatives. CF induced some charring activity, slightly decreasing the fire load and burning propensity in cone calorimeter test. ATH decomposes endothermically into water and inorganic residue. Significant fuel dilution as well as a pronounced residual protection layer reduces the fire hazards. Replacing a part of ATH with coconut fibers resulted in improved flame retardancy in terms of ignition, reaction to small flame, and flame-spread characteristics [heat release rate (HRR), fire growth rate (FIGRA), etc.]. The observed ATH and CF synergy opens the door to significant reduction of the ATH contents and thus to interesting flame retarded biocomposites.

ESTUDO DE ALTERNATIVAS PARA O APROVEITAMENTO DE RESÍDUOS SÓLIDOS DA INDUSTRIALIZAÇÃO DO COCO

The coconut has been expanding in recent years, due to growing demand in the sector of greencoconut water. Due to this event, there is a significant generation of waste from its production.Within this context, the objective was to analyze the strategies for the use of waste coconut husks,through the use of coconut fiber in order to reduce environmental impacts and check the type andlevel of economic and social benefits through technology presenting potential forms of recyclingto be employed through the coconut shells proposed uses of coconut fibers in order to mitigatethe impacts caused by shells, enabling the production of new products. The evaluation of thepotential of using waste coconut can be an alternative to reduce the space occupied by thesewastes in landfills and dumps. The methodology is a bibliographical study with qualitativeapproach of exploratory and descriptive data collection in key areas of agribusiness and wastegeneration from coconut. The results describe the various techniques described for the potentialuse of such wastes in different ways. However, even the green coconut husks being considered as remnants of agriculture with high potential for reuse, however, unfortunately, were found rareactions taken in Brazil to take advantage of this capability.