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All Journal International Journal of Public Health Science (IJPHS) Reaktor BULETIN OSEANOGRAFI MARINA BERKALA FISIKA SAINS DAN MATEMATIKA JURNAL KIMIA SAINS DAN APLIKASI JURNAL SISTEM INFORMASI BISNIS Jurnal Sains Materi Indonesia YOUNGSTER PHYSICS JOURNAL Jurnal Riset Kimia JURNAL KESEHATAN LINGKUNGAN (Journal of Environmental Health) Jurnal Ilmiah Arena Tekstil Jurnal Biodjati Indonesian Journal of Chemistry Journal of Physics and Its Applications Buletin Anatomi dan Fisiologi (Bulletin of Anatomy and Physiology) Indonesian Journal of Medicine Jurnal Fisika Indonesia ASEAN Journal of Chemical Engineering Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Jurnal Cahaya Mandalika Greensphere: Journal of Environmental Chemistry Makara Journal of Science Berita Kedokteran Masyarakat Riwayat: Educational Journal of History and Humanities Biosaintifika: Journal of Biology & Biology Education Inovate : Jurnal Ilmiah Inovasi Teknologi Informasi
Agus Subagio
Department Of Physics, Faculty Of Science And Mathematics, Universitas Diponegoro, Semarang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences

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Journal : BERKALA FISIKA

 1 
PEMBUATAN KOMPOSIT SERAT SERABUT KELAPA DAN RESIN FENOL FORMADEHIDE SEBAGAI MATERIAL PEREDAM AKUSTIK Kartikaratri, Yohana Maya; Subagio, Agus; Widyandari, Hendri
BERKALA FISIKA Vol 15, No 3 (2012): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

The sound pollution due to noise is a one clasical problem in Indonesia. Theloudness can be reduced using the accoustic absorber. The composites of coconut fiberhas potential application as an environmental friendly accoustic absorber which is usingan agriculture waste. We reported the preparation of composite of coconut fiber as amatrix material and fenol formaldehide served as binder (coconut fiber/FF composite).The  immersion of coconut fibers  in the NaOH solution of 2% for 4 hours were caried outpriorly for improving the strengthness.The absorption coefficient (α) of the preparedcoconut fiber/FF composite was observed using two microphone impedance tube method(ISO 10534 – 2 dan ASTM E1050 – 08.   The value of tested absorption coefficient (α) allof composites samples have fulfilled the requirement. Requirement of acoustic absorbervalue of α is more than 0,15; and all of composites samples fulfilled the requirement onfrequency 752 Hz - 6400Hz.  Keyword : absorption coefficient, acoustic absorber, composite, coconut fiber, fenolformaldehid.
Co-Authors Adi Darmawan Adithia, Rizky Putra Agung Cahyono Agus Setyawan Ahmad Aviv Mahmudi Alfatinnisa, Zalfa Andriyan, Mohammad Wahyu Anghistra, Pradipta Ditya Annisa Fadillah Antari, Arlita Leniseptaria Ari Udijono Aslam Fatkhudin Awal Prasetyo Bagoes Widjanarko Bayu Surarso Della Widya Puspita Ditalistya, Tabah Djalal Er Riyanto Dwi Sutiningsih Dwiantoro, Luky Edy Supriyanto Efiyanti, Lisa Eko Hidayanto Endah Puji Astuti, Endah Puji Eny Enawaty Erma Prihastanti Febio Dalanta Galih Priambodo, Galih Gufron, Ahmad Hadi Endrawati Halida Halida Hardhono Susanto Hella Arofah Hendri Widiyandari Hendri Widiyandari Hendri Widyandari Heri Sutanto Hermin Pancasakti Kusumaningrum Horasdia Saragih I Gusti Ngurah Antaryama I Nurhasanah Iis Nurhasanah Imam Misbach Indah Saraswati Indras Marhaendrajaya Indri Yuliastuti, Indri Jatmiko Endro Suseno Jaya, La Ode Irman Joko Sudarto Karimah, Putri Diah Wahyu Khasan Rowi Khasan Rowi M F Taftiari M. Imam Taufiq Maman Budiman Maman Budiman Marinu Waruwu Mashuri, Chamdan Mateus Sakundarno Adi, Mateus Sakundarno Maulidanir Rohman Mentari, Alfitra Akbar Bara Mentari Metri Setyaningsih Metri Setyaningsih Moch. Abdul Mukid Moehamad Barmawi Moehammad Barmawi Mohammad Muhriz Muckharom, Ahmad Ali Muhammad Iskandar Zulkarnain Muhammad Nur Muhammad Zainuri Mursid Raharjo Musni Ahyani Musni Ahyani, Musni Mustafid Mustafid Ngadiwiyana M.Si. S.Si. Ngurah Ayu Ketut Umiati Nissa Kusariana Nurwijayanti Pardoyo Pardoyo Pardoyo, Pepen Arifin Pepen Arifin Priyono Priyono Priyono, Puspita, Della Widya R Hidayatuloh R. Yudianti Redemtus Heru Tjahjana Rike Yudianti Rike Yudianti Rini Budihastuti Ririn Sulpiani Rizky Bimanda Sakti Romi Buana Puja Pangestu Saputra, Muhammad Ragil Satriyo Adhy Silviana Silviana Siti Nandiyah, Siti Skolastika Dara Sabatini Sri Eny Suharini, Sri Eny Sri Isdadiyanto Sri Widodo Agung Suedy Stefani Candra Firmanti Subhan Subhan Subhan, Sudarno Sudarno Sudarto, Joko Sukirno Sukirno Sukirno Sukirno SULISTIYANI SULISTIYANI Sunarno Sunarno Tatang Wahyudi Tatang Wahyudi, Tatang Taufiq, Heydar Ruffa Tri Windarti Udi Harmoko Vincensius Gunawan S.K. Weni Safitri Widianingsih Widianingsih Widiastuti Samekto Yani. T, Ahmad Yohana Maya Kartikaratri Yundari, Yundari Yuvita Muliastuti