@thesis{thesis, author={DWI PRATAMA HERMAN}, title ={PENGARUH KECEPATAN PENGADUKAN RESIN POLYESTER DENGAN ARANG SEKAM PADI TERHADAP KEKUATAN TARIK DAN IMPAK KOMPOSIT HYBRID BERPENGUAT SERAT GELAS}, year={2019}, url={http://eprints.stta.ac.id/2063/}, abstract={This research aimed to identify the effect of stirring speed on the tensile strength and impact of hybrid composites. This study used a stirring speed of 660 rpm, 885 rpm and 1020 rpm. The materials used consist of rice husks coal particles with a matrix Polyester Resin Yukalac 157 BQTN-EX and fiberglass woven roving 600. The method used in composite making process was hand lay up. The results of the composite tensile tests showed that the lowest resistance was at the stirring speed of 1020 rpm at 160,28 MPa and the highest resistance at 885 rpm at 173,43 MPa. In the impact test, the lowest absorption energy at a speed of 1020 rpm was 1,42 Joule and the highest resistance at a stirring speed of 885 rpm was 2,64 Joules. In the SEM test results on composites with 885 rpm stirring speed variations indicated voids due to air trapped within the composite during the manufacturing process.} }