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Motor lubricating oil and preparation method thereof

A lubricating oil and base oil technology, applied in the field of lubricating oil, can solve the problems of affecting the life of the motor, corroding the motor, ignoring the acidity and alkalinity of the lubricating oil, etc.

Inactive Publication Date: 2015-07-22
ANHUI YUANFENG PIPELINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lubricating oil is an essential chemical substance in the process of motor operation and maintenance. In order to make the lubricating oil have excellent viscosity and kinematic viscosity index, the existing lubricating oil manufacturers often add a series of additives to the lubricating oil, but ignore the lubricating oil. The acidity and alkalinity of the oil makes the lubricating oil not only lubricate and protect the motor, but also corrode the motor, which seriously affects the life of the motor

Method used

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preparation example Construction

[0015] The present invention also provides a preparation method of lubricating oil for motors, comprising base oil, antioxidant, barium dinonylnaphthalenesulfonate, trioctyl trimellitate, sodium alkylnaphthalenesulfonate, methyl silicone oil, Polyethylene oxide and lithium 12-hydroxystearate are mixed; wherein, the weight average molecular weight of polyethylene oxide is 1000-3000, and the weight average molecular weight of sodium alkylnaphthalene sulfonate is 2000-4000.

[0016] In the present invention, preferably, the amount of each component of the lubricating oil can be selected within a wide range. In order to make the lubricating oil have excellent viscosity and kinematic viscosity index and its pH is neutral, relative to 100 parts by weight of base oil , the consumption of antioxidant is 3-11 parts by weight, the consumption of barium dinonyl naphthalene sulfonate is 5-10 parts by weight, the consumption of trioctyl trimellitate is 5-7 parts by weight, alkyl naphthalene...

Embodiment 1

[0025] At 130°C, 5kg PAO7, 2.5kg PAO25, 2.5kg PAO40, 0.7kg butyl hydroxyanisole, 0.7kg barium dinonylnaphthalenesulfonate, 0.6kg trioctyl trimellitate, 0.5kg alkylnaphthalenesulfonate Namonate, 0.5 methyl silicone oil, 0.8kg polyethylene oxide and 0.5kg of lithium stearate 12-hydroxystearate are mixed to obtain motor lubricating oil A1, and detect the viscosity index and kinematic viscosity of the lubricating oil made and pH, the test results are shown in Table 1. Wherein, the weight-average molecular weight of polyethylene oxide is 2000, and the weight-average molecular weight of sodium alkylnaphthalene sulfonate is 3000.

Embodiment 2

[0027] At 130°C, 5kg PAO7, 2.5kg PAO25, 2.5kg PAO40, 0.3kg butyl hydroxyanisole, 0.5kg barium dinonyl naphthalene sulfonate, 0.5kg trioctyl trimellitate, 0.3 alkyl naphthalene sulfonate Namonate, 0.2 methyl silicone oil, 0.3kg polyethylene oxide and 0.4kg of 12-hydroxystearic acid lithium are mixed to make motor lubricating oil A2, and detect the viscosity index, kinematic viscosity of the lubricating oil that makes and pH, the test results are shown in Table 1. Wherein, the weight-average molecular weight of polyethylene oxide is 2000, and the weight-average molecular weight of sodium alkylnaphthalene sulfonate is 3000.

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Abstract

The invention discloses motor lubricating oil and a preparation method thereof. The motor lubricating oil is prepared from base oil, an anti-oxidant, dinonylnaphthalenesulfonic acid barium salt, trioctyl trimellitate, sodium alkyl naphthalene sulfonate, methyl silicone oil, polyethylene oxide and lithium 12-hydroxystearate, wherein the weight-average molecular weights of polyethylene oxide and sodium alkyl naphthalene sulfonate are 1000-3000 and 2000-4000 respectively. The motor lubricating oil is high in viscosity and kinematic viscosity index, and has a pH value of 6-8; the preparation method of the motor lubricating oil is simple, and raw materials are easy to obtain.

Description

technical field [0001] The invention relates to lubricating oil, in particular to a lubricating oil for motors and a preparation method thereof. Background technique [0002] Lubricating oil is an essential chemical substance in the process of motor operation and maintenance. In order to make the lubricating oil have excellent viscosity and kinematic viscosity index, the existing lubricating oil manufacturers often add a series of additives to the lubricating oil, but ignore the lubricating oil. The acidity and alkalinity of the oil makes the lubricating oil corrode the motor while lubricating and protecting the motor, which seriously affects the life of the motor. Contents of the invention [0003] The purpose of the present invention is to provide a kind of lubricating oil for motor, the lubricating oil has excellent viscosity and kinematic viscosity index, and the pH of the lubricating oil is 6-8, the method for preparing the lubricating oil is simple, and the raw mater...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M161/00C10M177/00C10N30/12C10N30/02C10N20/02
Inventor 伍克军
Owner ANHUI YUANFENG PIPELINE TECH CO LTD
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