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Preparation of silicone oil-containing lubricating anti-corrosion composite coating with low friction coefficient

A low friction coefficient, composite coating technology, used in the preparation of lubricating and anti-corrosion composite coatings, the preparation of silicone oil-containing lubricating and anti-corrosion composite coatings, to achieve simple preparation, excellent anti-friction and anti-wear properties, uniform dispersion and controllable release effect

Pending Publication Date: 2021-01-26
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on the use of silicone oil and polyurethane materials to prepare solid-liquid lubrication and anti-corrosion integrated coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of polyurethane material:

[0023] Add 10g of polyether polyol and 15g of toluene solution into the three-necked flask, mix well, then add 7.5g of isophorone diisocyanate that has been dewatered in vacuum, and then quickly inject nitrogen into the system to stir, at 300r / min, 70°C After reacting for 4h, the solvent was distilled off under reduced pressure at 50°C.

[0024] (2) Preparation of polyurethane lubricating and anti-corrosion composite materials containing hydroxyl silicone oil:

[0025] Weigh 5g of polyurethane material and 15g of toluene and mix evenly, and add 0.5g of hydroxy silicone oil, then quickly pass nitrogen into the mixed system and stir, react at a stirring rate of 250r / min at 80°C for 2h, and distill off the solvent under reduced pressure at 50°C. have to.

[0026] (3) Preparation of polyurethane lubricating anti-corrosion composite coating containing hydroxyl silicone oil:

[0027] ① Surface finish treatment of the metal sample...

Embodiment 2

[0040] (1) Preparation of polyurethane material:

[0041] Add 5g of polyether polyol and 8g of toluene solution into the three-necked flask, mix well, then add 4.41g of isophorone diisocyanate that has been dewatered in vacuum, then quickly inject nitrogen into the system and stir, at 300r / min, 60°C After reacting for 4 hours, the solvent toluene was distilled off under reduced pressure at 50° C. to obtain a polyurethane material.

[0042] (2) Preparation of graphene oxide reinforced polyurethane material:

[0043] Weigh 5g of polyurethane material and quickly add it to 5g of graphene oxide toluene solution with a concentration of 5wt%, then quickly inject nitrogen gas into the system to stir, react at 200r / min, 80°C for 2h, and remove it by distillation under reduced pressure at 50°C solvent, to obtain graphene oxide-reinforced polyurethane materials.

[0044] (3) Preparation of polyurethane lubricating anticorrosion composite material containing methyl silicone oil:

[0045...

Embodiment 3

[0060] (1) Preparation of polyurethane material:

[0061] Add 8.46g of polyether polyol and 12g of toluene solution into the three-necked flask, mix well, then add 7.5g of isophorone diisocyanate that has been dewatered in a vacuum, and then quickly inject nitrogen into the system to stir, at 300r / min, 70°C After reacting for 4h, the solvent was distilled off under reduced pressure at 50°C.

[0062] (2) Preparation of attapulgite-reinforced polyurethane material:

[0063] Weigh 7.5g of polyurethane material and quickly add 3g of attapulgite toluene solution with a concentration of 10wt%, then quickly inject nitrogen into the system to stir, react at 250r / min, 90°C for 2h, and distill off the solvent under reduced pressure at 50°C. have to.

[0064] (3) Preparation of polyurethane lubricating anticorrosion composite material containing methyl silicone oil:

[0065] Weigh 5g of attapulgite-reinforced polyurethane material and mix it with 20g of toluene evenly, add 0.75g of me...

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Abstract

The invention provides a preparation method of a silicone oil-containing lubricating anti-corrosion composite coating with a low friction coefficient. Silicone oil is used as a corrosion inhibitor anda lubricant, and solid-liquid separation in the coating is realized by utilizing the characteristic that low-molecular silicone oil still keeps a liquid state at the curing temperature of polyurethane. Controllable surface migration of organic silicon is achieved by adjusting the type or content of silicone oil, and the wear-resisting service life is prolonged while the friction coefficient of the coating is reduced. The preparation method is simple in preparation and convenient to use, the acting force between the polyurethane matrix and silicone oil molecules is adjustable, and uniform dispersion and controllable release of silicone oil are realized. A composite coating can realize controllable release of the silicone oil filler under stimulation of friction motion, and can simultaneously realize lubrication and corrosion resistance effects through a solid-liquid composite lubrication action mechanism and hydrophobicity of silicone oil, so that the coating has excellent antifrictionand anti-wear properties and corrosion resistance, and the composite coating has huge application potential and market value in the fields of friction and corrosion.

Description

technical field [0001] The invention belongs to the technical field of solid-liquid lubrication and anticorrosion materials, and relates to a preparation method of a lubrication and anticorrosion composite coating, in particular to a preparation method of a silicon oil-containing lubrication and anticorrosion composite coating with a low coefficient of friction. Background technique [0002] Corrosion and wear of materials are the main causes of energy dissipation and damage failure of mechanical workpieces, which not only lead to reduced production efficiency, but even lead to mechanical accidents. Anti-corrosion protection and anti-friction and wear-resistant coatings have become one of the important ways to save energy and resources, slow down environmental pollution, and eliminate potential safety hazards. Solid-liquid composite materials fully make up for the deficiency of fluid lubrication and give full play to the advantages of solid lubrication. At the same time, liq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D183/04C09D7/61C09D5/08
CPCC09D5/08C09D175/08C09D7/61C08L83/04C08K3/042C08K3/346
Inventor 陈磊李凤英马彦军周惠娣陈建敏
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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