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Preparation method of epoxy resin-based nano-composite material suitable for oil lubrication working condition

A technology of nanocomposite materials and epoxy resin, applied in the field of polymer materials, to achieve the effect of low cost and good application prospects

Active Publication Date: 2020-05-08
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hydrotalcite-like nano-materials, as a new type of lamellar nano-materials, can exhibit good tribological properties as lubricating oil additives, but there is no disclosure about the use of hydrotalcite-like nano-fillers as functional fillers in polymer materials under oil-lubricated conditions. report

Method used

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  • Preparation method of epoxy resin-based nano-composite material suitable for oil lubrication working condition
  • Preparation method of epoxy resin-based nano-composite material suitable for oil lubrication working condition
  • Preparation method of epoxy resin-based nano-composite material suitable for oil lubrication working condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 The preparation method of the epoxy resin-based nanocomposite material suitable for oil lubrication working conditions comprises the following steps:

[0034] ⑴Preparation of cobalt-aluminum hydrotalcites (Co-Al LDHs):

[0035] ① Cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O) be dispersed in deionized water to obtain a solution A with a concentration of 0.1mol / L;

[0036] ②Add 1L solution A to 1L containing sodium hydroxide (NaOH) and sodium carbonate (NaOH) 2 CO 3 ) in an aqueous solution, which is fully dissolved by magnetic stirring to obtain solution B;

[0037] ③Add 1L 0.1mol / L Al(OH) to 1L Solution B 3 Solution, after stirring, transfer the mixed solution to a hydrothermal reaction kettle, conduct a hydrothermal reaction at 120°C for 4 hours, and then cool naturally to obtain an off-white solution C containing suspended solid particles;

[0038] ④ Solution C was centrifuged and washed with deionized water at a speed of 2000r / min to obtain a precipitate, ...

Embodiment 2

[0041] Example 2 The preparation method of epoxy resin-based nanocomposites suitable for oil lubrication conditions, comprising the following steps:

[0042] (1) Preparation of cobalt-aluminum hydrotalcites (Co-Al LDHs) is the same as in Example 1.

[0043] ⑵According to the mass fraction, 10.0wt.% cobalt-aluminum hydrotalcite (Co-Al LDHs) and 90.0wt.% epoxy resin have a vacuum degree of -1×10 5 Pa, rotating speed is 2000r / min under the condition of stirring and mixing 30min, add the curing agent of epoxy resin volume content 10% again, continue to stir and mix 8min with the rotating speed of 4000r / min, obtain mixed solution;

[0044] (3) The mixture is poured into the mold, and cured at 120°C for 8 hours at a high temperature. After demoulding and shaping, the epoxy resin-based nanocomposite material suitable for oil lubrication conditions is obtained.

Embodiment 3

[0045] Example 3 The preparation method of epoxy resin-based nanocomposites suitable for oil lubrication conditions, comprising the following steps:

[0046] ⑴Preparation of cobalt-aluminum hydrotalcites (Co-Al LDHs):

[0047] ① Cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O) be dispersed in deionized water to obtain a solution A with a concentration of 3mol / L;

[0048] ②Add 1L solution A to 100L solution containing sodium hydroxide (NaOH) and sodium carbonate (NaOH) 2 CO 3 ) in an aqueous solution, which is fully dissolved by magnetic stirring to obtain solution B;

[0049] ③Add 100L 0.1mol / L Al(OH) to 1L solution B 3 Solution, after stirring, transfer the mixed solution to a hydrothermal reaction kettle, conduct a hydrothermal reaction at 120°C for 24 hours, and then cool naturally to obtain an off-white solution C containing suspended solid particles;

[0050] ④ Solution C was centrifuged and washed with deionized water at a speed of 2000r / min to obtain a precipitate, which was...

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Abstract

The invention relates to a preparation method of an epoxy resin-based nano-composite material suitable for an oil lubrication working condition. The method comprises the following steps: (1) preparingcobalt-aluminum hydrotalcite by a hydrothermal technology; (2) stirring and mixing the cobalt-aluminum hydrotalcite and epoxy resin for 5-30 min under a vacuum condition, then adding a curing agent,and continuously stirring and mixing for 4-8 min to obtain a mixed solution; and (3) pouring the mixed solution into a mold, carrying out high-temperature curing, and demolding and shaping to obtain the epoxy resin-based nano-composite material suitable for the oil lubrication working condition. The method is low in cost, simple and easy to implement and capable of achieving mass production, and the obtained epoxy resin-based nano-composite material is good in friction and abrasion resistance and has good application prospects as a moving part under the oil lubrication working condition.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a preparation method of an epoxy resin-based nanocomposite material suitable for oil lubrication working conditions. Background technique [0002] The rapid development of modern industry has higher and higher requirements for the operating conditions of the machinery and equipment industry, resulting in the frequent lubrication of the moving parts of the machinery and equipment under the condition of mixed lubrication or even boundary lubrication. Under boundary lubrication conditions, the hydrodynamic effect of the lubricating medium is weakened, the bearing capacity of the lubricating medium and the lubricating shear characteristics are weakened, and the direct contact between the friction pairs is intensified, resulting in more and more serious wear of the friction pair materials, so , it is very important to improve the wear resistance of the friction pair material under thi...

Claims

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Application Information

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IPC IPC(8): C08L63/02C08K3/26
CPCC08K3/26C08K2201/003C08K2201/011C08L63/00
Inventor 张嘎喻萍赵福燕李贵涛张利刚
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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