Experimental Investigation on Mechanical Properties of Hemp/E-Glass Fabric Reinforced Polyester Hybrid Composites (original) (raw)

INVESTIGATION ON MECHANICAL PROPERTIES OF HEMP-E GLASS FIBER REINFORCED POLYMER COMPOSITES

Natural fiber composite is currently a leading module in the world of composites. It is due to many of its features such as freely available, easy processing, low cost, ability to replace usage of Glass fiber (Synthetic fiber), better strength properties and ecofriendly. They find useful applications in various fields from domestic to automotive sector as of now. Natural fibers with good content of lignocellulose, low density, and better elongation percentage are chosen for manufacturing of composites of above mentioned applications. Unidirectional & Continuous natural fiber composites are said to be anisotropic and having predominant mechanical properties. While designing these composites out of many factors, amount or volume fraction of fibers also considered carefully. In this study untreated continuous Hemp fiber-Bi directional woven E Glass fiber reinforced hybrid polymer matrix composite laminates are developed and tested for its mechanical properties such as tensile, compression and flexural as per ASTM standards by varying fibers proportions. The obtained results yields that natural fiber composites performed equally or more than synthetic fibers such as Glass fibers.

Mechanical Characterization of Hemp Fiber Reinforced Polyester Composites: A Review

2016

The natural fibers are bio-form of plant and animal skin. The natural fibers are abundant in quantity. They possess lightweight and high strength capabilities. The use of those fibers leads no harms in environment, are biodegradable and renewable source of energy. The paper reviews different types of natural fiber, among them hemp fiber, and recognize their mechanical and chemical characteristics. The paper investigates the composite form, which is formed using the natural fiber hemp and polyester resin, varying their proportion and obtaining its mechanical and other properties. The composites made are proposed to be used in other applications. Keywords: Natural fibers, hemp and its properties, composite form Cite this Article Biren J. Saradava, Abhishek J. Kathwadia, Ajit D. Gorviyala, Vatsal K. Joshi . Mechanical Characterization of Hemp Fiber Reinforced Polyester Composites: A Review. Journal of Polymer & Composites. 2016; 4(1): 1–3p.

Characterization of Hemp/Glass Reinforced Epoxy Hybrid Composites with Filler Material for the Engineering Application

International Journal of Recent Technology and Engineering (IJRTE), 2020

Cenosphere is a powder form material obtained by burning of coal in thermal plants. This industrial waste is ceramic rich, economically available and as filler material has the potential to improve properties of Composites. This work deals with the effect of cenosphere as filler material on mechanical properties of the Hemp/Glass Reinforced Epoxy Hybrid Composites. Industrial hemp fiber/fabric, which is produced by the bast of the hemp tree, is used along with Glass fibers in this hybrid composite with cenosphere as a filler material and epoxy as the matrix material. Hand layup technique is used to develop composite specimens with various weight fractions. Composite specimen prepared as per relevant ASTM standards were tested for their mechanical properties to establish the influence of cenosphere and glass fabrics in the laminates with Hemp fabrics. It has found that some of the properties of hybrid composite samples are significantly increased by the influence of filler material. ...

Studies on mechanical strengths of hemp-glass fibre reinforced epoxy composites

IOP Conference Series: Materials Science and Engineering, 2018

The objective of this study is to produce hemp and glass fiber incorporated composites with epoxy resin polymer matrix and to determine the mechanical strengths like, impact strength, tensile strength and flexural strength of the different samples. The hemp and glass fibres reinforced composite material components and products plays a major role in the field of automobile and construction sectors. By using hand layup process the different composite samples are fabricated as per the ASTM standards and the specimens were tested with aid of UTM tensile testing machine and charpy impact energy testing machine. The experimental reading of tested samples indicates that the untreated hemp and glass fibres composite exhibit the excellent tensile and flexural strengths. From the tested samples the SEM analysis was carried out to study the morphological properties

Development of hemp fabric reinforced composites

2016

One of the activities producing a destructive impact on the environment is uncontrolled or illegal timber harvesting. It is a response to high market demand due to the modernisation of lifestyles. The awareness of world’s population of the global environmental problems related to this issue has increased the popularity of natural fibre reinforced composites. Its availability and the data available on its properties tend to provide assurance for its application in many fields. The main objective of this project is to develop material using woven hemp fabric (WHF) and vinyl ester resin as a potential alternative to the utilisation of woods or engineered wood products. Apart from the composite development, fire retardant, water absorption and fatigue properties of the WHF reinforced composite are investigated. Some characterisations of the fabric properties were undertaken to verify the data given by the supplier as well as to collect more data about the fabric since the data given by ...

Physical Properties of Glass-Hemp-Banana Hybrid Fiber Reinforced Polymer Composites

Indian Journal of Science and Technology, 2017

Background/Objectives: In this experimental work the effect of mechanical properties on incorporation of glass fibre with treated banana-hemp fibres has been studied. Methods/Statistical analysis: Banana and hemp fibres are extracted by enzymatic processes for successfully removing lignin. The alkaline solution was used to treat the fibres since it is increases their mechanical strength. The banana, hemp and glass fibres were reinforced with the epoxy matrix and the hybrid composites were fabricated by using hand layup process. Alternative orientations of fibres were used for the fabrication of the laminates in order to improve their strength. Findings: As per the ASTM standards, test specimens were prepared from the laminates with the stacking sequence of glass/banana fibre, glass/hemp fibre and glass/banana/hemp fibre. The mechanical characteristics were obtained by impact test, tensile test and flexural test for the fabricated samples. The interfacial analysis was conducted using scanning electron microscope to estimate voids, fractures and fibre pull out. The experimental result shows that the glass/banana/hemp fibre composite exhibits maximum tensile strength than the other two combinations. The hemp-glass fibre composite holds the maximum flexural strength followed by glass/hemp/banana fibre composites. The glass/banana fibre composites hold maximum impact energy and the value of the composites varies from 7.33 to 9.33 Joules. Application/Improvements: These composites are performing well in all kind of mechanical loadings. It is suggested that these materials can be used in the relevant fields.

Physical and Mechanical Behavior of Hemp and Nettle Fiber-Reinforced Polyester Resin-based Hybrid Composites

Journal of Natural Fibers, 2020

The present study proposes different types of composites using natural fibers and recognizes its physical and mechanical behavior by varying their proportion and also the hybrid composite of (hemp + nettle) fiber-reinforced polyester resin. Their physical properties are determined using morphological analysis. Mechanical properties (hardness, tensile, flexural, and impactresistance) and the scanning electron microscopy for fractured surfaces were analyzed to test composite surfaces. It is concluded that the above composite composition leads to high mechanical properties, which can be proposed to be used in many applications in place of conventional natural fibers. 摘要 本研究提出了几种天然纤维复合材料,并通过改变其比例来识别其物理力 学性能,以及(大麻+荨麻)纤维增强聚酯树脂的混杂复合材料. 用形态 分析法测定了它们的物理力学性能. 分析了复合材料表面的力学性能(硬 度、拉伸、弯曲和抗冲击)以及断裂表面的扫描电子显微镜. 结果表明, 上述复合材料具有较高的力学性能,可以代替传统的天然纤维应用于许多 领域.

A review on "Fabrication and mechanical characterization of composites using hemp and glass as a reinforcement material polyester resin matrix material and cenosphere as filler material for engineering applications"

IRJET, 2022

The recent approach towards the biodegradable, ecological, and recyclable materials have results in a drastic shift from a man-made/synthetic to a natural fiber. Thus, the usage of natural fiber such as hemp fibers as reinforcement in composite materials has expanded in recent years. Hemp fibers are produced from the stem, which make them stiff and these are the properties required for composite material reinforcement. This fibers offer mechanical properties similar to glass fibers. The diversity in their qualities, on the other hand, is their main flaw. Hemp fiber combining with thermoplastic, thermoset, and natural matrices have excellent mechanical characteristics. Several hemp fiber surface treatments, which were employed to increase fiber and matrix interfacial bonding, significantly improved the mechanical properties of the resultant material.

Development of HEMP Fiber Reinforced Polypropylene Composites

Journal of Thermoplastic Composite Materials, 2008

Nonwoven mats from hemp and polypropylene fibres in various proportions were produced and hot pressed to make composite material. The effect of fibre content and the anisotropy in nonwoven mat resulting from the carding technology were examined on the three-point bending, tensile and impact properties of resultant composite material. Because of the hydrophilic nature and poor dimensional stability of cellulosic fibres due to swelling, the effect of water sorption on mechanical performances was also investigated. Optimal mechanical properties were achieved in composites made from 40-50 % of hemp fibre by weight. As it was expected, better mechanical properties were found in the specimens cut from the composite sheets parallel to the direction of carding. A strong decrease in three point bending properties was noticed after immersing the composite samples in the distilled water for 19 days, while the impact strength increased. Double carding of raw materials resulted into decreased anisotropy in composite material.

Impact and fatigue properties of hemp–glass fiber hybrid biocomposites

The effect of hybridization of hemp fibers with glass fibers on the impact and fatigue properties of the hybrid biocomposites made from them has been studied. The laminates were made by hand layup followed by compression molding, using unsaturated polyester resin as the matrix. Hemp fibers were in the form of short randomly oriented mat and glass fibers were in the form of chopped strand mat. Replacement of about 11% of hemp fibers with glass fibers in hybrid composites increased their impact damage tolerance considerably. Following impact at 4 J energy, hybrid composites lost only about 30% of their intrinsic strength and stiffness, compared to 70% loss for hemp fiber composites at same impact energy. However, at this concentration of glass fibers in hemp fibers, the improvement in impact damage tolerance was limited to 15 J impact at which level the hybrid composites lost almost 90% of their intrinsic strength and stiffness. Hybrid hemp-glass fiber composites showed improvement in fatigue strength but no improvement in fatigue sensitivity was observed compared to hemp fiber composites.