Characteristics of polyester composite reinforced hybrid Hibiscus tiliaceust bark and palm fibers as harrow comb (leveler) material

Abstract

In the present research preparation and characterization of polyester composite reinforced hybrid fiber Hibiscus tiliaceust bark fiber (HTBF) and palm fibers (PF). PF is obtained from palm plantation in Kekait village. HTBF has gained from the beach Krandangan, West Lombok, Indonesia. The fibers were treated with alkali by soaking it in 5% NaOH solution for 2 days Composites were made using the vacuum infusion method. The matrix used is polyester resin BTQN 157. The volume fractions between palm fibers (PF) and Hibiscus tiliaceust bark fiber (HTBF) are, 5% : 25%, 10% : 20%, 15% : 15%, and 20% : 10 %. Specimens for tensile testing using the ASTM D638-03 Type I standard and impact testing using the Izod method, specimens using the ASTM D256-03 standard, and further Observation of the specimen fracture was carried out using Canon EOS 700D Kit (EF S18-55 IS STM) camera. The results of this study indicate the addition of the volume fraction of palm fiber (PF), affects the tensile strength, modulus of elasticity, impact toughness and the extent of the fracture shape of the specimen. As the volume fraction of PF increases, the tensile strength, modulus of elasticity, fracture area increases, but the impact toughness of the specimen decreases. The specimen is suitable to be used as a leveler, mainly crushing and destroying paddy fields

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“…It is also shown that the addition of the percentage of HTBF makes a significant contribution to the increase in the tensile strength of the specimen, where specimens without the addition of HTBF have lower tensile strength, for the three polyester composite specimens with 0 %, 5 % and 10 % CTBN filler. This is in accordance with the results of research from [11,12]. The change in tensile strain of the specimen polyester composite reinforced hybrid fiber MASF-HTBF with CTBN filler is shown in Fig.…”

“…3, a and Table 1. The tensile strength of the MASF-HTBF hybrid fiber reinforced polyester composite is higher than that of the MASF single fiber reinforced polyester composite, based on the results of [11]. The tensile strength of HTBF fiber is higher than that of MASF fiber, on the other hand the tensile strength of HTBF fiber is lower than that of MASF fiber.…”

“…4, a. Based on research results [11,12], the MASF ductility more higher than the HTBF ductility. The ductility of a material is a factor affecting the absorption of energy due to external forces.…”