Design of composite material of rice straw fiber reinforced epoxy for automotive bumper

In this study discusses the design of automotive bumper composite materials using rice straw fiber - epoxy, the method used in the process is filament winding method with the addition of NAOH and without NAOH on the cleaning process of rice straw fibers from impurities such as silica and lignin. The tensile result test which has been done is the fiber volume fraction of 10%, 20%, 30%, and 40% which obtained an average tensile strength 10% as 6.43 GPA, for 20% as 8.89 GPA, for 30% as 14.295 GPA, and 40% as 5.55 GPA. The composite material of epoxy rice straw fibers with the addition of NAOH obtained tensile test results at volume fraction of 10% as 6.99 GPA, 20% as 10.69 GPA, 30% as 14.76 GPA, and 40% having tensile strength as 8.54 GPA. These three volume fractions meet the criteria for automotive bumper material with tensile strength as 8.09 GPA.