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A kind of ester composition and its application in lubricating oil

A composition and ester technology, applied in the directions of lubricating compositions, petroleum industry, base materials, etc., can solve the problems of high requirements for lubricating oil, difficult to meet oxidation stability and anti-wear properties, and achieve the effect of excellent comprehensive performance.

Active Publication Date: 2017-12-12
青岛冠军石油化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the existing technology, this application is biodegradable, but its oxidation stability and anti-wear properties are difficult to meet the high requirements of lubricating oil

Method used

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  • A kind of ester composition and its application in lubricating oil
  • A kind of ester composition and its application in lubricating oil
  • A kind of ester composition and its application in lubricating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An ester composition, comprising the following components in parts by mass:

[0026]

[0027] Among them, the diester is 2-ethylhexyl adipate.

[0028] The polyol ester is trimethylolpropane ester and dipentaerythritol ester, and the mass ratio of the two is 1:2.

[0029] The complex polyol ester is neopentyl glycol dioleate.

[0030] The polyester is a maleic acid type polyester.

[0031] The kinematic viscosity of the ester composition at 100°C is 9.4mm 2 / s.

[0032] According to the ratio of the above-mentioned ester composition, the preparation is as follows, including the following steps: take diester, polyol ester, complex polyol ester and polyester into the blending kettle, and stir for 50 minutes at 45°C until the composition reach a homogeneous state.

Embodiment 2

[0034] An ester composition, comprising the following components in parts by mass:

[0035]

[0036] Among them, the diester is 2-ethylhexyl azelate and isotridecanyl sebacate, and the mass ratio of the two is 4:1.

[0037] The polyol ester is neopentyl alcohol ester.

[0038] The complex polyol ester is dipentaerythritol dioleate.

[0039] The polyester is a fumaric acid type polyester.

[0040] The kinematic viscosity of the ester composition at 100°C is 8.3mm 2 / s.

[0041] According to the ratio of the above-mentioned ester composition, the preparation is as follows, including the following steps: take diester, polyol ester, complex polyol ester and polyester into the blending kettle, and stir for 45 minutes at 55°C until the composition reach a homogeneous state.

Embodiment 3

[0043] An ester composition, comprising the following components in parts by mass:

[0044]

[0045] Among them, isodecyl adipate.

[0046] The polyol ester is pentaerythritol ester.

[0047] The composite polyol ester is neopentyl glycol dioleate and dipentaerythritol dioleate, and the mass ratio of the two is 1:3.

[0048] The polyester is a maleic acid type polyester.

[0049] The kinematic viscosity of the ester composition at 100°C is 8.9mm 2 / s.

[0050] According to the ratio of the above-mentioned ester composition, the preparation is as follows, including the following steps: add diester, polyol ester, complex polyol ester and polyester to the blending kettle, and stir for 60 minutes at 40°C until the composition reach a homogeneous state.

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PUM

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Abstract

The invention discloses an ester composition. The composition comprises the following components in parts by mass: 20-40% of diester, 40-60% of polyol ester, 10-20% of Pluronic polyol ester and 5-10% of polyester. The invention also discloses a preparation method of the ester composition and application of the ester composition. The ester composition is used as base oil for engine oil, transmission case oil and gear oil. The ester composition and the base oil have favorable compatibility; and after the ester composition is used, the thermal oxidation stability and the abrasion resistance in lubricating property of the product are obviously enhanced, and the evaporation loss of the product is also greatly reduced.

Description

technical field [0001] The invention relates to an ester composition, in particular to an ester composition and its application in lubricating oil. Background technique [0002] Lubricating oil is a liquid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering. Lubricating oil generally consists of two parts: base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil. Additives can make up for and improve the performance of base oil, endow some new properties, and are an important part of lubricating oil. The American Petroleum Institute (API) divides base oils into five categories: I, II, III, IV, and V. Types I, II, and III belong to mineral base oils. Type IV refers to polyalphaolefins (PAO). I, II, and III Those other tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M111/04C10N30/10C10N30/06C10N40/04C10N40/25C10N20/02
CPCC10M111/04C10M2207/2805C10M2207/2825C10M2207/2835C10M2207/2895C10M2209/1023C10N2020/02C10N2030/06C10N2030/10C10N2040/04C10N2040/25
Inventor 万德
Owner 青岛冠军石油化学有限公司
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