Evaluation of Mechanical Behavior of Multifilament Waste Fish Net/Glass Fiber in Polyester Matrix for the Application of Mechanized Boat Deckhouse in Marine Composites

Abstract

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.

Fire-resistant hydrophobic nanocoated composite partition sheets

“…Even though the hydrophobic nanopowder was made by the chemical treatment of silanes over hydrophilic grade powder, the tensile strength is comparably slightly reduced, which may be due to the improper bonding with the matrix. 35,36 Furthermore, the tensile load bearing capacity is increased by the presence of the waste nylon elements, that is, fishing nets in layers [22][23][24] which is reflected in the latter samples.…”

“…All the composites manufactured showed better flexural strength which attributed with the glass fiber content in them. 22,28 Also, the flexural strength of the composites with waste nylon reinforcement is higher than their analogues which is due to the better flexibility of nylon fibers. 22,23 As the number of fishing net layers increased, the values also are more pronounced as shown from the bar chart in Figure 4.…”

“…36 It is obvious that as the number of nylon fishing net layer increases, the impact resistance tends to increase. [22][23][24] The suitability of a composite material for partition sheet application should be determined not only by typical design parameters but also by its impact or energy-absorbing properties as these partition sheets have to undergo different types of impact in day-to-day living conditions. Figure 6 shows the computerized microscopic images taken as snapshots of hybrid 1 specimen subjected to three-point flexural testing.…”

“…Since they are brittle and have less impact resistance, waste nylon materials, that is, fishing nets, are also used as reinforcement for improving the impact properties of the partition sheets. [22][23][24] This work deals with the study of hybrid composites with nanocoatings, manufactured as sheets, specifically evaluated as a substitute for partition sheets for indoor housing applications in buildings. They are investigated for the basic mechanical properties for their strength compatibility, as well as durability and flammability, along with smoke test, for their fire behavior in case of accidents.…”

“…Since they are brittle and have less impact resistance, waste nylon materials, that is, fishing nets, are also used as reinforcement for improving the impact properties of the partition sheets. 22 –24…”