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All Journal Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Journal of Engineering and Scientific Research (JESR)
Shirley Savetlana
university of Lampung
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Medicine & Pharmacology Other

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The Effect of Barite Addition and Graphite Particle Size on The Specific Abrasion of Fly-Ash/Phenolic Composite for Brake Lining Application Shirley Savetlana; Zulhanif Zulhanif; Harnowo Supriadi; Irvan Ramadhan; Teten Beliantara
Journal of Engineering and Scientific Research Vol. 4 No. 1 (2022)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (888.599 KB) | DOI: 10.23960/jesr.v4i1.102

Abstract

Annually, million tons of fly-ash and bottom fly-ash is a waste of coal power plant. Fly ash contains Iron-oxide, alumina and silica. Those hard particle makes fly-ash can be used as a reinforcement in polymer composite. This composite is a wear resistance material and can be used as material for brake lining application. Fly ash reinforced phenolic composite has a low specific abrasion. The composite for brake lining material consisted of the reinforcement, friction modifier, solid lubricant and filler. Graphite is used as solid lubricant while barite is used as filler. Many research were carried out research on the particle size effect on the composite mechanical properties. However the size different between the constituent in composite has not investigated. Also the optimal barite weight fraction has not being observed. The composite was made by mixing all of the constituent, pressing in the mold and curing. The result show that the graphite particle size ? 150 mm has the lowest specific abrasion. The observation using scanning electron microscope shows that the composite contained small particle of ? 56 mm tends to agglomerate than the composite contained larger particle of ? 150 mm. the composite contained 15% barite has the lowest specific abrasion. The micrograph of scanning electron microscope shows the mixed of phenolic and barite evenly covered the graphite and fly-ash particles.
PELATIHAN PENGEKSTRAKAN SERAT TKKS KEPADA KELOMPOK TANI DESA ONOHARJO, KECAMATAN TERBANGGI BESAR, LAMPUNG TENGAH shirley savetlana; Sugiyanto Sugiyanto; Zulhanif Zulhanif; Nafrizal Nafrizal
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol 7 No 1 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v7i1.408

Abstract

Usaha perkebunan sawit menyumbang 42% dari kebutuhan minyak nabati dunia. Sektor industri sawit memberikan sumbangan yang cukup besar kepada perekonomian Indonesia, melalui ekspor Crude Palm Oil (CPO) dan produk-produk turunannya dengan rata-rata sebesar 14,19% per tahun dari total ekspor non-migas Indonesia. Di Lampung sendiri luas perkebunan sawit menurut data tahun 2019 adalah seluas 109,24 ribu hektar. agroindustri sawit ini tentu saja menghasilkan limbah antara lain tandan kosong kelapa sawit yang cukup berlimpah. Desa Onoharjo terletak di Kecamatan Terbanggi Besar. Kabupaten Lampung tengah. Masyarakatnya merupakan petani antara lain berkebun sawit. Limbah tandan kosong kelapa sawit (TKKS) dihasilkan dari perkebunan kelapa sawit. Limbah ini sebenarnya merupakan sumber serat. Serat ini merupakan material yang ramah lingkungan. Pada kegiatan pengabdian ini akan dilakukan kegiatan workshop pengabdian yaitu mengenai teknologi pengekstrakan serat dari tandan kosong kelapa sawit menjadi serat kepada kelompok tani di Desa Onoharjo. Serat yang telah diekstrak ini nantinya akan dapat digunakan untuk membuat produk-produk yang bernilai ekonomis. Serat diekstrak manual dan akan diberikan perakuan kimia menggunakan sodium hidroksida dan selanjutnya dikeringkan didalam alat pemanas. Hasil pre test dan post test menunjukan adanya peningkatan pemahaman peserta terhadap pengambilan dan pengawetan serat tandan sawit.
Co-Authors Harnowo Supriadi Irvan Ramadhan Nafrizal Nafrizal Sugiyanto Sugiyanto Teten Beliantara Zulhanif Zulhanif Zulhanif Zulhanif