Author:
Zhao Gaiqing,Zhao Qin,Wang Xiaobo,Liu Weimin
Abstract
Purpose
– The purpose of this paper is to study a novel Mannich adduct of benztriazole-containing diphenylamine (coded as BD) and its anti-oxidation properties as an additive in two typical synthetic ester-based oils.
Design/methodology/approach
– The anti-oxidation properties in two typical synthetic ester-based oils were evaluated in detail, using rotating pressure vessel oxidation test. The tribological properties of BD in synthetic ester-based oil (A51) were also tested with Optimal SRV-I oscillating friction and wear tester at atmosphere.
Findings
– The results of tests demonstrated that the novel BD compound is, indeed, a high-performance anti-oxidation additive that was able to remarkably improve the oxidation stability of synthetic ester-based oils, when it was added at only 0.5 per cent concentration and compared with the base oils containing 0.5 per cent of the commercial available antioxidant additives such as 2, 6-di-tert-butyl-4-methylphenol and octyl-butyl diphenylamine. A plausible mechanism of exceptional synergistic anti-oxidation was proposed.
Originality/value
– This paper first investigated the anti-oxidation properties and mechanisms of the compound with the structure of BD, which can be very useful and would promote the application of BD antioxidant in the lubricant industry.
Subject
Surfaces, Coatings and Films,General Energy,Mechanical Engineering
Reference20 articles.
1. Allam, N.K.
,
Ashour, E.A.
,
Hegazy, H.S.
,
El-Anadouli, B.E.
and
Ateya, B.G.
(2005), “Effects of benzotriazole on the corrosion of Cu10Ni alloy in sulfidepolluted salt water”, Corrosion Science, Vol. 47, pp. 2280-2292.
2. Bellakhal, N.
and
Dachraoui, M.
(2004), “Study of the benzotriazole efficiency as a corrosion inhibitor for copper in humid air plasma”, Materials Chemistry and Physics, Vol. 85, pp. 366-369.
3. Bolland, J.L.
and
Gee, G.
(1946), “Reaction of alkoxy free radicals in pure solvents”, Transaction of Faraday Society, Vol. 42, pp. 236-244.
4. El-Ashry, E.S.H.
,
El-Rafey, M.E.
,
El-Nagdi, M.H.
,
Abou-Elnaga, H.H.
,
Bakry, W.M.A.
and
Boghdady, Y.M.
(2006), “Synthesis of benzotriazole derivatives as antioxidants for industrial lubricating oils”, Lubrication Science, Vol. 18, pp. 109-118.
5. Fessenbecker, A.
,
Roehrs, I.
and
Pegnoglou, R.
(1996), “Additives for environmentally acceptable lubricants”, NLGI Spokesman, Vol. 60 No. 6, pp. 9-25.
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