Composite material has long life, higher strength, lower weight and less maintenance cost. These properties have led to marine applications, significantly reduced energy consumption and impact to the environment. Mechanized boat deckhouses are constructed with glass fiber and polyester matrix. But the glass fiber production and utilization is hazardous. The fish net is generally made from nylon fiber and woven in a grid-like structure, which is tough possess high tensile strength, elasticity, resistant to abrasion, impact and chemicals. Fish net gets damaged and large amount of them are wasted every year. The present work focuses on the reuse of this nylon fiber, as reinforcing material, as substitute for glass fiber partially, in polyester matrix. Tensile, impact, flexural and water absorption properties of these specimens are studied according to ASTM standards. The results suggest the possibility of utilizing waste fish net in composite building for boat deckhouse.

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In this study, multifilament discarded fishnet/glass fibers with polyester matrix are investigated for their properties for possible application in making electrical poles. The prepared composite specimens were 16 layers of glass fiber composites as compared with 15 layers of glass fiber and additional 1, 2, and 3 layers of multifilament discarded fishnet fiber of 16 mm mesh. Mechanical properties and dynamic mechanical analysis were performed according to ASTM, so as to compare the performance of glass fiber composites as partial substitute in multifilament discarded fishnet fiber composite manufacturing. Scanning electron microscope and Energy Dispersive Spectroscopy were recorded for various composites to investigate the bonding strength of the fibers with matrix and the elemental compositions. The results revealed that the multifilament discarded fishnet fiber composite of T90° orientation has higher impact strength and flexural properties. It is proposed to use glass fiber and multifilament discarded fishnet fiber incorporated composites for the manufacturing of electrical poles. Reuse of waste materials is widely encouraged from an environmental perspective and hence, these composites mitigate the problem of waste disposal. POLYM. COMPOS., 39:2997–3005, 2018. © 2017 Society of Plastics Engineers

In this work, tensile mechanical properties of the aluminum alloy 6063 (AA6063) with reinforced silicon carbides (SiC) black and green aluminium based composites and the deformed specimens are analyzed using nondestructive evaluation (NDE) of ultrasonic inspections. The specimens making of various weight proportions and its manufacturing of stir casting technique. After tensile test the deformed specimens measure the surfaces using scanning electron microscope (SEM) and Energy Dispersive X-ray spectrum (EDX). Also, conduct the salt spray test of the deformed specimens and compare the surfaces at before and after the deformation. The deformed specimen for NDE was observed interruption, twinning and debonding in onset of plastic deformation of the matrix interfaces. However, the interaction moment was significantly influence by the load bearing capacity from the reinforcement to the matrix. The result was showed that AA6063 with SiC black and green composites are better tensile mechanical properties and better surface integrity was investigated. Furthermore, the regression analysis shows that the variations of interfaces on AA6063 with SiC black and green composites and the factors influenced by the tensile properties, salt spray test and ultrasonic test are found significant and the MMCs are the specific applications of automotive industries.