CD Skripsi

Pembuatan Grease Dari Minyak Biji Karet: Pengaruh Campuran Lioh-Naoh Dan Rasio Base Oil:Thickening Agent Terhadap Karakteristik Grease

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Abstract
Greases were used to reduce friction between two opposite moving metal surface. The utilized base oil could be vegetable oil and mineral oil, however mineral oil is not environmental friendly. This research objectives was to produce grease from rubber seed oil and to study LiOH-NaOH mole ratio effect and base oil mass ratio effect toward produced grease characteristic. This research pretreatment consisting few steps: raw material preparation involve rubber seed oil extraction by expression, degumming, centrifugation and then oil characteristic test including density, viscosity and GC-MS. The process continued by LiOH-NaOH metal soap making utilizing rubber seed oil with mole variations (90:10), (80:20) and (70:20), stirring time 30 minutes, stirring speed 650 rpm and stirring temperature is 70 oC. The last step was blending among base oil, thickening agent and additive with rasio (75:20:5)%w/w, (77,5:17,5:5)%w/w, (80:15:5)%w/w, (82,5:12,5:5)%w/w, (85:10:5)%w/w, stirring time 240 minutes, stirring speed 650 rpm and stirring temperature 120 oC. Rubber seed oil characterization results were density of 0,819 gr/ml and fatty acid content which dominated by unsaturated fatty acid namely linoleic acid 34,11% and linolenic acid 30%. The optimum ratio obtained were LiOH:NaOH ratio of 90%:10% (A1) and base oil:thickening agent:additive of (75:20:5)%w/w with penetration 228 (25 oC), dropping point 125 oC and NLGI number 3.
Keyword : dropping point, grease, metal soap, penetration, rubber seed oil

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0006)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia., 2020

Deskripsi Fisik

ix, 77 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0006)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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