PENGARUH KEKUATAN BENDING DAN TARIK BAHAN KOMPOSIT BERPENGUAT SEKAM PADI DENGAN MATRIK UREA FORMALDEHIDE

  • - Harini Fakultas Teknik Universitas 17 Agustus 1945 Jakarta
  • Sri Endah Susilowati Fakultas Teknik Universitas 17 Agustus 1945 Jakarta
Keywords: rice husks, urea formaldehyde, bending, impact

Abstract

Rice husk has several advantages such as the ability to withstand humidity, nonflammable, it is not easy to mold, odorless and others. Utilization of waste rice husk is still a big chance to be used as an engineering material. By adding an inexpensive adhesive, rice husk has the potential to be engineered into flexible core product for the manufacture of composite sandwich panels. The purpose of the research conducted are: (1) Determine the influence of bending strength on the variation of the volume fraction of rice husk of Composite rice and bermatrik urea formaldehyde with the hot press at 60 ° C for 24 hours, (2) Determine the influence of tensile strength on variations the volume fraction of the rice husk and rice husk composite bermatrik urea formaldehyde with the hot press at 60°C for 24 hours and know the results of the test structures on the bending and tensile testing with macro photos. The research method is done by testing bending and tensile with a volume ratio of rice husk Vf = 40%, 50%, 60%, 70%, and urea formaldehyde Vm = 60%, 50%, 40%, 30%, test results obtained (1) the most optimal bending test is 5mm thick specimen with Vf = 40% of 2.73 MPa, (2) and most optimal Impact test specimen thickness is 5 mm, and Vf = 40% in the amount 0,34MPa.

References

ASTM D 638­02. Standard Test Method for Tensile Properties of Plastics. An American National Standard. 2002
ASTM D 790­02. Standard Test Method for Flexural Properties of Unreinforce and Reinforced Plastics and Electrical Insulating Materials. An American National Standard. 2002
Diharjo, K., dan Triyono, T.. Buku Pegangan Kuliah Material Teknik. Universitas Sebelas Maret. Surakarta. 2003
Jones, M. R.. Mechanics of Composite Material. Mc Graww Hill Kogakusha. 1975
Lukkasen, D. and Meidell, A.. Advance Materials and Structures and their Fabrication Processes, Third edition. Narvik University College, HiN. 2003
Roseno, Seto. Karakteristik dan model Mekanis Material komposit Berpenguat Serat Alam. BPPT, Jakarta. 2003
Smith, F. W., Hashemi, J.. Foundation of Materials Science and Enginering, Mc Graw Hill Companies. 2006
Sony. Meneliti Kekuatan Bending dan Tarik Komposit Berpenguat Serbuk Tempurung Kelapa dan Abu Sekam Padi Yang Dikombinasikan Dengan Epoxy. Tugas Akhir, Teknik Mesin UMS, Surakarta. 2005
Published
2017-07-31
Section
Artikel