Studies on biodegradability of bio-based lubricants

被引：60

作者：

Luna, F. Murilo T. ^{[1
]}

Cavalcante, Jefferson B. ^{[1
]}

Silva, F. Ordelei N. ^{[2
]}

Cavalcante, Celio L., Jr. ^{[1
]}

机构：

[1] Univ Fed Ceara, Dept Engn Quim, GPSA, BR-60455900 Fortaleza, Ceara, Brazil

[2] Univ Fed Ceara, Dept Quim Organ & Inorgan, Lab Bioinorgan, BR-60455900 Fortaleza, Ceara, Brazil

来源：

TRIBOLOGY INTERNATIONAL | 2015年 / 92卷

关键词：

Biodegradability; Bio-based lubricant; Basestock oil; OILS;

D O I：

10.1016/j.triboint.2015.07.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Vegetable or synthetic lubricants, also called biolubricants, are less harmful to the environment. In order to quantify their biodegradability, some tests are able to predict how long oil/lubricants will take to be degraded in the environment. This study proposes to evaluate the biodegradability of bio-based lubricants using a bio-kinetic model (without microorganisms), comparing their performances with fresh vegetable oil and mineral oil. The results are presented through an Effective Composition for Biodegradation (ECB), half-lives and biodegradation time profile. The synthesized biolubricants showed ECB values closer to vegetable oil than mineral oil. Half-life times are approximately 12 days for fresh vegetable oil, around 20-30 days for the biolubricants, and over 200 days for the mineral oil. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：301 / 306

页数：6

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