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PENYULUHAN PEMANFAATAN LIMBAH SERBUK KAYU SEBAGAI PENGUAT POLIPROPILENA DI PT. LAKSANA TEKHNIK MAKMUR Herlin Arina; Erfina Oktariani; Rebecca Christine
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 6 No 1 (2023): APTEKMAS Volume 6 Nomor 1 2023
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36257/apts.v6i1.6548

Abstract

PT Laksana Tekhnik Makmur is one of the companies that produces plastic automotive components, so it is interesting to carry out a direct approach to the company to find out the problems being faced. Production processes that use plastic seeds repeatedly, usually provide poor product quality and need improvement. The use of additives, especially antioxidants, which have been researched by a team from STMI Polytechnic, has shown an improvement in product quality. This community service activity, especially for PT Laksana Tekhnik Makmur, provides solutions to the production team to add antioxidants to the raw materials. If the production team implements according to the results of the discussion, a decrease in NG (no good) products can be obtained by 40%. This will increase the profit of the company itself. Keywords: polypropylene, sawdust, antioxidant
Enhancement of Flow Properties Biodiesel Using Sorbitan Monooleate Herlin Arina; Mohammad Nasikin
Scientific Contributions Oil and Gas Vol 45 No 3 (2022)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.45.3.1262

Abstract

Depletion of fossil fuel and increased pollution caused by the burning of fossil fuel is a leading factor in to use of alternate energy especially palm oil biodiesel as a mixture of diesel oil fuel (B-XX). It was reported that the use of the B-20 caused a blockage in the vehicle’s fuel filter. The blockage is caused by the presence of deposits formed from the agglomeration of monoglycerides. Three different biodiesels with monoglyceride content were used 0.40% - 0.60% by mass. The addition of monoglyceride standards (monopalmitin, monostearin, and monoolein) to biodiesel increases the volume of monoglyceride precipitates formed. The presence of these deposits decreases the flow properties of B-20. Research has been carried out to improve the flow properties of biodiesel by adding Sorbitan Monooleate (CMOST) surfactant, especially cloud points (CP) and cold filter plugging point (CFPP) parameters. The addition of 0.10%w - 1%w CMOST can reduce the CP by 4.80oC and CFPP by 2oC. This proves that the addition of SMO will improve the flow properties of B-XX as an alternative energy.