Physical, mechanical, and water absorption behavior of coir/glass fiber reinforced epoxy based hybrid composites

Abstract

Fiber reinforced polymer composites has been used in a variety of application because of their many advantages such as relatively low cost of production, easy to fabricate, and superior strength compare to neat polymer resins. Reinforcement in polymer is either synthetic or natural. Synthetic fiber such as glass, carbon, etc. has high specific strength but their fields of application are limited due to higher cost of production. Recently there is an increase interest in natural composites which are made by reinforcement of natural fiber. In this connection, an investigation has been carried out to make better utilization of coconut coir fiber for making value added products. The objective of the present research work is to study the physical, mechanical, and water absorption behavior of coir/glass fiber reinforced epoxy based hybrid composites. The effect of fiber loading and length on mechanical properties like tensile strength, flexural strength, and hardness of composites is studied. The experimental results reveal that the maximum strength properties is observed for the composite with 10 wt% fiber loading at 15 mm length. The maximum flexural strength of 63 MPa is observed for composites with 10 wt% fiber loading at 15 mm fiber length. Similarly, the maximum hardness value of 21.3 Hv is obtained for composites with 10 wt% fiber loading at 20 mm fiber length. Also, the surface morphology of fractured surfaces after tensile testing is examined using scanning electron microscope (SEM). POLYM. COMPOS., 35:925–930, 2014. © 2013 Society of Plastics Engineers

Influence of Moisture Absorption and their Effect on the Physho-Mechanical Properties of Coir-Luffa Fibre Reinforced Polymer Matrix Composites

“…It is observed that the deformation depth increases for water-immersed specimen compared to dry one, due to the hydrophilic nature of fibers and led to the deformation of a weak fiber-matrix interface. The results also agree well with the results of Al-Mosawi Ali [10] and by other researchers working with natural fiber based composites [11,12]. …”

“…The cause of the reduction of strength may be fiber entanglement. This may be observed by the results and consequence drawn by literature reference [13][14].…”

“…The flexural strength characteristics decrease in wet composites as compared to dry composite sample since the immersion of the composite sample in water affects the interfacial adhesion between fiber and matrix. The Same trend of Physical, mechanical, and water absorption behavior of coir/glass fiber reinforced epoxy based hybrid composite has been observed by Bhagat et al [10].…”

Jüt, E-cam ve Karbon Kumaşların Termo-mekanik Analizi

“…On the other hand, the properties such as, biodegrability, cheapness, accesibility, low density and high specific properties make natural fibers (banana, cotton, jute, sisal, etc.) advantageous over man-made fibers [4,6]. Natural fiber reinforced composites have good thermal and acoustic insulating properties and they are resistant to fracture [5].…”

Examination of the Thermo-mechanical Properties of E-Glass/Carbon Composites

“…Rezultati so pokazali, da vrsta in razporeditev ojačitvenega materiala pomembno vplivata na dinamične mehanske lastnosti kompozitnih vzorcev. Ključne besede: tekstilni kompoziti, dinamična mehanska analiza, termogravimetrična analiza, dinamična kalorimetrija e advantageous properties of E-glass bres that make them preferable materials for composite structures are their high damping characteristics, lightweight, low cost, high strength, good resistance to corrosion and excellent insulation properties [5][6][7][8]. Dynamic mechanical analysis (DMA) is a technique that measures both the mechanical and viscoelastic properties of materials [9].…”