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PMMA-containing composite pour point depressant as well as preparation method and application thereof

A technology of pour point depressants and additives, which is applied in the field of PMMA-containing composite pour point depressants and its preparation, to achieve the effects of good low-temperature fluidity, good rheological timeliness and long-term stability, and good pour point depressant effect

Inactive Publication Date: 2020-09-08
JIANGSU LOPALTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to overcome the defects existing in the existing single pour point depressant, to provide a composite pour point depressant containing PMMA and its preparation method and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] According to the total weight of 100 parts, take 60 parts of polymethacrylate (molecular weight: 1,000,000), 12 parts of N-lauroyl-L-alanine, 15 parts of fatty alcohol polyoxyethylene ether, and 13 parts of toluene. After stirring in a constant temperature water bath at 60°C for 30 minutes, the composite pour point depressant containing PMMA was obtained.

Embodiment 2

[0027] According to the total weight of 100 parts, take 70 parts of polymethacrylate (molecular weight: 600000), 9 parts of N-lauroyl-L-alanine, 13 parts of fatty alcohol polyoxyethylene ether, and 8 parts of toluene, and mix them uniformly in After stirring in a constant temperature water bath at 60°C for 30 minutes, the composite pour point depressant containing PMMA was obtained.

Embodiment 3

[0029] According to the total weight of 100 parts, take 70 parts of polymethacrylate (molecular weight: 300000), 6 parts of potassium N-lauroyl-L-alanine, 10 parts of fatty alcohol polyoxyethylene ether, and 14 parts of mesitylene and mix well After stirring in a constant temperature water bath at 60°C for 30 minutes, the composite pour point depressant containing PMMA was obtained.

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PUM

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Abstract

The invention discloses a PMMA-containing composite pour point depressant which comprises the following components in percentage by weight: 50-70% of polymethacrylate, 6-12% of amino acid, 10-15% of fatty alcohol-polyoxyethylene ether and the balance being an auxiliary agent. The components of the composite pour point depressant disclosed by the invention have a unique synergistic effect, and thecomposite pour point depressant has a good pour point depressing effect in base oil, a good pour point depressing effect on different base oils, good low-temperature fluidity, good rheological timeliness and long-term stability.

Description

technical field [0001] The invention belongs to the technical field of petroleum industry, and in particular relates to a PMMA-containing composite pour point depressant and its preparation method and application. Background technique [0002] The pour point depressant is a high molecular polymer or condensate, also known as a low temperature flow improver, which is an additive to improve the low temperature flow state of lubricating oil. The pour point depressant changes the shape of the wax crystal by adsorbing on the surface of the wax crystal or eutectic with the wax crystal, so as to maintain the fluidity of the oil at low temperature. [0003] Since the first lubricating oil pour point depressant was synthesized by Davis et al. using naphthalene and paraffin as raw materials in the 1930s, the research on lubricating oil pour point depressant has continuously expanded from lubricating oil pour point depressant to crude oil pour point depressant and diesel oil pour point...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10N30/02
CPCC10M161/00C10M2203/06C10M2209/084C10M2209/104C10M2209/108C10M2215/08
Inventor 石俊峰
Owner JIANGSU LOPALTECH
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