The Regression Models of Impact Strength of Coir Coconut Fiber Reinforced Resin Matrix Composite Materials

Abstract

The need of coconuts in Indonesia is relatively high. The use of large quantities of coconuts produces large amounts of organic waste from coco fiber, which tends to become waste if it is not used to be beneficial for humans.One of the potential uses of coconut fiber is as a reinforcement of natural fibers in polymer matrix composite materials. Recently, the applications of composite materials have been expanded widely including structural angine component which whitstand certain load like impact load. But most of them used synthetic fiber. Although the use of natural fibers as reinforcement in composite materials has been widely studied, their use is still limited because natural fibers have their own advantages and disadvantages. The purpose of this study was to measure the impact strength of specimens of coconut fiber reinforced polymer matrix composite material, and to determine the effect of the length and concentration of coconut fiber on its impact strength. A significant and valid regression model was also generated in this research, that states the relationship between fiber length and fiber content of resin matrix composite material to its impact strength. The result shows that the impact strength of the samples were influenced by fiber content and fiber length. The regression models for the impact strength of resin composite reinforced with coconut fiber is Y = 4.44 +0.180 X1 – 0.52 X2 Where: Y = Impact Strength (kJ/m2), and X1= Fiber length (mm), and X2= Fiber content (%).

The Effect of Alkali Treatment to Mechanical Properties of Resin Composite Reinforced with Coir Coconut Fiber

“…Research on the effect of oil palm fiber content on the axial load fatigue cycle on resin matrix composite has been conducted. That study obtained that The impact strength of the composite material is influenced by the fiber length and fiber content [16] [12]. Other researchers, who examined the effect of weight percentage on the tensile strength and flexure of coconut coir polyester fiber composites found that the percentage of 15% fiber weight has the highest average tensile strength of 24.478 MPa compared to 5% and 10% fiber fractions [17].…”

“…From this study, it was found that the highest impact strength was obtained in specimens with 10% weight fiber content compared to 5% and 7%. Regarding fiber length, it was found that the highest impact strength was obtained in specimens with a fiber length of 10 mm compared to the fiber length of 5 mm and 7 mm [16,17].…”

“…The impact strength study of composite materials has also been carried out [17] [16]. That research a polypropylene matrix and oil palm fiber reinforcement.…”

The Mechanical Properties Requirement for Polymer Composite Automotive Parts - A Review

“…Polypropylene is widely used in injection molding processes using natural fibers [14,15,16,17]. Oil palm fiber have been studied extensively for the production of composites for various applications, such as, cement boards [18], energy absorption applications [19], concrete beam [20], as glass fiber substitutes [21] and also for automotive parts [22,23]. The effect of oil palm shell (OPS) powder on the mechanical performance and thermal stability of polyester composites were investigated by other researcher [24].…”

The Effect of Coconut Coir Fiber Powder Content and Hardener Weight Fractions on Mechanical Properties of an Epr-174 Epoxy Resin Composite

“…The research regarding the influence of coconut coir fiber length and content on the impact strength of resin matrix composite has been investigated [24], The research obtained that the highest impact strength 2.78kJ/m 2 of composite specimens from 1.8% fiber content with 8mm fiber length, whereas the lowest impact strength of 0.75kJ/m 2, resulted from 1.8% fiber content with 10mm fiber length.…”