scholarly journals EFFECTS OF ADDITIVE ON THE MECHANICAL PROPERTIES OF BAMBOO/PBS COMPOSITES

2012 ◽  
Vol 06 ◽  
pp. 780-784
Author(s):  
YEON-HEE LEE ◽  
HAN-KI YOON ◽  
HITOSHI TAKAGI ◽  
KAZUYA OHKITA
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Fossil Fuel ◽  
Natural Fibers ◽  
High Strength ◽  
Bamboo Fiber ◽  
Fabrication Technique ◽  
Flexural Test ◽  
Butylene Succinate ◽  
Environment Friendly

Compared with general composites which are produced from fossil fuel, biodegradable resins have received considerable attention as an environment-friendly material. Bamboo fiber has relatively high strength compared with other natural fibers. Therefore, the focus of this study is to produce bamboo fiber reinforced Poly butylene succinate (PBS) composites by injection molding and to study the effects of additive on mechanical properties of this bamboo/PBS composite. The injection-molding is a highly productive fabrication technique. Bamboo/PBS composites were examined by flexural test and Vickers hardness. Also we examined fracture surface and microstructure of the bamboo/PBS composites by microscope.

scholarly journals Effect of reinforcements on polymer matrix bio-composites – an overview

2018 ◽  
Vol 25 (6) ◽  
pp. 1039-1058 ◽  
Author(s):  
Sumit Das Lala ◽  
Ashish B. Deoghare ◽  
Sushovan Chatterjee
Keyword(s):  
Mechanical Properties ◽  
Low Cost ◽  
Natural Fibers ◽  
High Strength ◽  
Low Density ◽  
Intrinsic Properties ◽  
Environment Friendly ◽  
Complex Shapes ◽  
Strength And Durability ◽  
Comprehensive Study

AbstractThe inherent properties of bio-composites such as biodegradability, environment friendly, low cost of production, high strength and durability make them a suitable replacement to traditional materials such as glass and nylon. Bio-polymers are finding wide applications due to their intrinsic properties such as low density, low thermal conductivity, corrosion resistance and ease of manufacturing complex shapes. This paper aims toward a comprehensive study on polymer bio-composites. The review mainly focuses on types of reinforcements such as natural fibers, seed shells, animal fibers, cellulose, bio-polymers, bio-chemicals and bioceramics which enhance the mechanical properties, such as tensile strength, compressive strength, flexural strength, Young’s modulus and creep behavior, of the composites. The pertinent study carried out in this review explores an enormous potentiality of the composites toward a wide variety of applications.

Experimental study on effect of fiber length and fiber content on tensile and flexural properties of bamboo fiber/epoxy composite

2019 ◽  
Vol 15 (5) ◽  
pp. 947-957 ◽  
Author(s):  
Giridharan R. ◽  
Raatan V.S. ◽  
Jenarthanan M.P.
Keyword(s):  
Mechanical Properties ◽  
Fiber Length ◽  
Epoxy Composite ◽  
Natural Fibers ◽  
Weight Ratio ◽  
Fiber Content ◽  
Bamboo Fiber ◽  
Flexural Properties ◽  
Fiber Reinforced ◽  
Content Type

Purpose The purpose of this paper is to study the effects of fiber length and content on properties of E-glass and bamboo fiber reinforced epoxy resin matrices. Experiments are carried out as per ASTM standards to find the mechanical properties. Further, fractured surface of the specimen is subjected to morphological study. Design/methodology/approach Composite samples were prepared according to ASTM standards and were subjected to tensile and flexural loads. The fractured surfaces of the specimens were examined directly under scanning electron microscope. Findings From the experiment, it was found that the main factors that influence the properties of composite are fiber length and content. The optimum fiber length and weight ratio are 15 mm and 16 percent, respectively, for bamboo fiber/epoxy composite. Hence, the prediction of optimum fiber length and content becomes important, so that composite can be prepared with best mechanical properties. The investigation revealed the suitability of bamboo fiber as an effective reinforcement in epoxy matrix. Practical implications As bamboo fibers are biodegradable, recyclable, light weight and so on, their applications are numerous. They are widely used in automotive components, aerospace parts, sporting goods and building industry. With this scenario, the obtained result of bamboo fiber reinforced composites is not ignorable and could be of potential use, since it leads to harnessing of available natural fibers and their composites rather than synthetic fibers. Originality/value This work enlists the effect of fiber length and fiber content on tensile and flexural properties of bamboo fiber/epoxy composite, which has not been attempted so far.

Effect of CaCO3 Whisker and Polypropylene Hybrid Fiber on Mechanical Properties of Concrete

2011 ◽  
Vol 477 ◽  
pp. 313-318 ◽  
Author(s):  
Jian Qiang Wei ◽  
Ming Li Cao ◽  
Hang Yao
Keyword(s):  
Mechanical Properties ◽  
Polypropylene Fiber ◽  
High Strength ◽  
Hybrid Fiber ◽  
Environment Friendly ◽  
Excellent Thermal Stability ◽  
Powder Filler ◽  
Reinforcing Effects ◽  
Calcium Carbonate Whisker ◽  
Different Content

As the composite of materials, fibers compositing, which can give full play to synergism of each fiber’s reinforcement, will become an inevitable trend. Calcium carbonate whisker is a kind of green environment-friendly fibrous powder filler with high strength, high modulus and excellent thermal stability, which has been proven that it has obviously toughening and reinforcing effects on cement-based materials. In this paper, CaCO3 whiskers composite with polypropylene fiber were added into concrete as reinforcement. Effect of different content of whiskers and fibers on the mechanical properties of concrete was investigated. The results shows that the composite of CaCO3 whisker and polypropylene fiber (PP) has better toughening and reinforcing effects than that of single filler. The strength of whiskers/PPF-reinforced concrete can be obviously improved compared with that of pure concrete, whisker concrete and PPF concrete. These increases could be correlated to the synergism of PPF and CaCO3 whisker, which are different in size, aspect ratio, elastic modulus, and reinforcing role in concrete.

Fabrication and Mechanical Properties of Banana Fiber Reinforced Biocomposite

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Surya Pratap Goutam ◽  
Rajkamal Shastri ◽  
J P Yadav ◽  
M K Gupta ◽  
Anil Kumar Yadav ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Renewable Resources ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Environmental Issues ◽  
Fiber Reinforced ◽  
Banana Fiber ◽  
Environment Friendly ◽  
Material Sources ◽  
Important Indication

<p>Usual polymer composites are non-biodegradable and pollute the environment. Using natural fibers with polymers<br />based on renewable resources will allow many environmental issues to be solved. Therefore, world is as of now focusing<br />on alternate material sources that are environment friendly and biodegradable in nature. Owing to increasing natural<br />concerns, bio composite produced out of natural fiber and polymeric resin, is one of the late advancements in the<br />scientific business. This paper is focused on fabrication and mechanical behaviour of natural fiber-reinforced<br />biocomposite R P E B . It is shown that a property of the fibers also gives important indication regarding their 15 15 40 30<br />subsequent behaviour as reinforcement in composites.</p>

Direct injection molding and mechanical properties of high strength steel/composite hybrids

2019 ◽  
Vol 210 ◽  
pp. 70-81 ◽  
Author(s):  
Yiben Zhang ◽  
Lingyu Sun ◽  
Lijun Li ◽  
Bincheng Huang ◽  
Taikun Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
High Strength Steel ◽  
Direct Injection ◽  
High Strength ◽  
Steel Composite

Macro, Micro and Nanoscale Bamboo Fiber as a Potential Reinforcement for Composites

2015 ◽  
Vol 668 ◽  
pp. 11-16 ◽  
Author(s):  
Viviane da Costa Correia ◽  
Fabíola Maria Siqueira ◽  
Rafael Donizetti Dias ◽  
Holmer Savastano
Keyword(s):  
Mechanical Properties ◽  
High Strength ◽  
Bamboo Fiber ◽  
Partial Replacement ◽  
Synthetic Fibers ◽  
Chemical Pulping ◽  
Tropical Areas ◽  
Bamboo Fibers ◽  
Mechanical Nanofibrillation ◽  
Inorganic Matrices

Vegetal fibers are obtained from leaves, stalks, culms, fruit and seeds, and have been used in the macro, micro and nanoscale as partial replacement of synthetic fibers in organic and inorganic matrices. Bamboo has high strength fibers, and is one of main nonwood resources and is available in tropical areas worldwide. These characteristics justify the study and application of bamboo fiber as reinforcement in the macro, micro and nanoscale. The macrofibers were obtained from bamboo culms, the microfibers from the chemical pulping and the nanofibers were obtained from the mechanical nanofibrillation of the pulp. The fibers were subjected to chemical, physical, mechanical and morphological tests. There was modification in the chemical composition of the bamboo after pulping, such as decrease of amount of the lignin, hemicellulose and extractives in 42.4%, 33.3% and 83.7%, respectively.The bamboo fibers width have been reduced from 0.26 mm to 19.8 μm after pulping and after nanofibrillation process the width was reduced from 19.8 μm to 16.2 nm.The decrease of the fibers dimension can be seen from the micrographs and analyzing it mechanical properties, the bamboo fibers are a reinforcement potential in macro, micro and nanoscale to organic and inorganic matrices.

scholarly journals A Review on Green Composites Based on Natural Fiber-Reinforced Polybutylene Succinate (PBS)

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1200
Author(s):  
Mokgaotsa J. Mochane ◽  
Sifiso I. Magagula ◽  
Jeremia S. Sefadi ◽  
Teboho C. Mokhena
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Environmentally Friendly ◽  
Barrier Properties ◽  
Biodegradable Plastic ◽  
Fiber Reinforced ◽  
Butylene Succinate ◽  
Plastic Wastes ◽  
Polybutylene Succinate

The need for utilization of environmentally friendly materials has emerged due to environmental pollution that is caused by non-biodegradable materials. The usage of non-biodegradable plastics has increased in the past decades in many industries, and, as a result, the generation of non-biodegradable plastic wastes has also increased. To solve the problem of non-biodegradable plastic wastes, there is need for fabrication of bio-based polymers to replace petroleum-based polymers and provide strategic plans to reduce the production cost of bioplastics. One of the emerging bioplastics in the market is poly (butylene succinate) (PBS) and it has been the biopolymer of choice due to its biodegradability and environmental friendliness. However, there are some disadvantages associated with PBS such as high cost, low gas barrier properties, and softness. To lower the cost of PBS and enhance its properties, natural lignocellulosic fibers are incorporated into the PBS matrix, to form environmentally friendly composites. Natural fiber-based biocomposites have emerged as materials of interest in important industries such as packaging, automobile, and construction. The bonding between the PBS and natural fibers is weak, which is a major problem for advanced applications of this system. As a result, this review paper discusses various methods that are employed for surface modification of the Fibers The paper provides an in-depth discussion on the preparation, modification, and morphology of the natural fiber-reinforced polybutylene succinate biocomposites. Furthermore, because the preparation as well as the modification of the fiber-reinforced biocomposites have an influence on the mechanical properties of the biocomposites, mechanical properties of the biocomposites are also discussed. The applications of the natural fiber/PBS biocomposites for different systems are also reported.

scholarly journals Systematic Approach to Optimize Injection Molding and Microstructural Analysis of Fiber Reinforced Resins for Anisotropic Mechanical Characterization

2020 ◽  
pp. 1-9
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Poisson Ratio ◽  
Flow Direction ◽  
Microstructural Analysis ◽  
Weight Ratio ◽  
High Strength ◽  
Fiber Reinforced ◽  
Melt Flow ◽  
Form Complex

Fiber reinforced resin materials are increasingly being used in aviation, automotive, mass transportation and healthcare industries. Engineers are keen to explore new design concepts with such materials, since these materials promises to offer high strength to weight ratio, elimination of secondary operations and ease in process ability to form complex shaped parts through injection molding. The mechanical properties of molded parts made from such materials depends on the orientation of the reinforcing fibers. Such orientation occurs in fiber-reinforced plastics, since the fibers in the plastic melt during processing, will orient in different directions under the influence of shear forces that are driven by flow pattern. This paper provides details on systematic and abusive injection molding of test specimens and characterizing anisotropic mechanical data that can be used for fiber orientation predictions in computer aided engineering programs. Systematic molding as compared to abusive molding, identifies optimum molding parameters that reduces part–to-part variation during injection molding, thereby reduces part rejections. It provides optimum part performance during application and the process settings are repeatable and reproducible. The intention of this paper is to share widely such a method to make this process less of a skill or art. The mechanical properties covered here are elastic, shear modulus and poisson ratio. Scanning electron microscopy (SEM) analysis revealed that most of the fibers are aligned in melt flow direction for systematic molded plaques, leading to higher stiffness and strength characteristics as compared to transverse to melt flow.

scholarly journals Experimental Study on the Mechanical Properties of the Fiber Cement Mortar Containing Polyurethane

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Xijun Zhang ◽  
Hongyuan Fang ◽  
Mingrui Du ◽  
Mingsheng Shi ◽  
Chao Zhang
Keyword(s):  
Mechanical Properties ◽  
Cement Mortar ◽  
High Strength ◽  
Sem Analysis ◽  
Test Results ◽  
Flexural Test ◽  
Compressive Test ◽  
Bending Resistance ◽  
Properties Of Materials ◽  
Pva Fiber

Polymer is a kind of high molecular elastic material. The polymer cement mortar composite material formed by mixing it with cement mortar has the advantages of light weight, high strength, and good durability compared with traditional mortar materials. The effect of polyurethane polymer content on mechanical properties and microstructure of polyvinyl alcohol (PVA) fiber cement mortar was studied by compressive test, flexural test, and SEM analysis. The test results show that as the content of polyurethane increases, the compressive strength gradually decreases, and the flexural strength gradually increases. The addition of polyurethane helps to optimize the microstructure of PVA mortar, improve the compactness of the material, and enhance the bending resistance of the mortar. The mechanical properties of materials obtained from the experiment can provide references for engineering applications.

Improvement of Mechanical Properties of Polycaprolactone (PCL) by Addition of Nano-Montmorillonite (MMT) and Hydroxyapatite (HA)

2013 ◽  
Vol 315 ◽  
pp. 815-819 ◽  
Author(s):  
Reazul Haq Abdul Haq ◽  
Wahab Saidin ◽  
Uzir Wahit Mat
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Injection Molding ◽  
Human Body ◽  
Testing Machine ◽  
Tensile Modulus ◽  
Flexural Test ◽  
Molding Machine ◽  
Weight Percentage ◽  
Flexural Analysis

For many years, researcher have focused on developing a medical part of human body from polymer as to replace metal. This report described the mechanical characteristic of biodegradable Polycaprolactone (PCL) blend with nanoMontmorillonite (MMT) and Hydroxyapatite (HA). The amount of nanoMMT is varies from 2 to 4 by weight % meanwhile the amount of HA is fixed to 10 by weight percentage (wt %). The addition of nanoMMT and HA filler is to tune and indirectly improve the mechanical properties of PCL. These are proven by carrying out the tensile, and also flexural test for samples which is injected from injection molding machine. Both the tensile and flexural test are conducted using Shimadzu AG-I Unversal Testing Machine with 10kN capacity. From the analysis it is found that overall PCL/MMT/HA composites gives better result in both tensile and flexural analysis compare to PCL/MMT composite. PCL/MMT/HA composite with 2 wt% of MMT and 10 wt% of HA have indicated the highest tensile modulus, meanwhile PCL/MMT/HA composite with 4 wt% MMT and 10 wt% HA have plotted the highest flexural strength and modulus value.

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