ANALISA KEKUATAN TARIK DAN IMPAK MATERIAL KOMPOSIT TENUN RAMI TERHADAP LAMA WAKTU PERENDAMAN AIR LAUT SEBAGAI BAHAN ALTERNATIF UNTUK LAMBUNG PERAHU NELAYAN
Daftar Isi:
- As an archipelagic country, Indonesia needs marine vehicles as a means of transportation for crossings, fishing, tourism and others. Ironwood is usually used as a fishing boat hull material to catch fish, but ironwood is ineffective because the dimensions of the wood cannot be adjusted according to the needs of the boat, therefore composites are used as an alternative material for fishing boat hulls so that the size and dimensions of the material can be adjusted accordingly. with boat building needs. Hemp fiber was chosen as a candidate for composite reinforcement because hemp has the highest tensile strength among other natural fibers and also the choice of epoxy as a matrix because it is resistant to environmental degradation. The results showed that the highest tensile strength of the flax-epoxy woven composite was 28.333 MPa, then after 7 days of immersion the value decreased to 27,333 MPa and then decreased again after 23 days of immersion to 21 MPa. Meanwhile, the result of the impact test before being immersed in seawater was 0.0082 J/mm2. after 7 days of immersion the value decreased to 0.0078 J/mm2. Then on 23 days of immersion the value rose to 0.0109 J/mm2.