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Modified aerogel nanoparticles and their applications

A nanoparticle and airgel technology, applied in the field of nanoparticles, can solve the problems of rare applications of airgel nanomaterials, achieve the effects of enhancing heat resistance and antifreeze effects, reducing frictional resistance, and prolonging service life

Active Publication Date: 2022-07-12
正大国际科技(常德)集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of airgel nanomaterials in the field of lubricants is relatively rare

Method used

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  • Modified aerogel nanoparticles and their applications
  • Modified aerogel nanoparticles and their applications
  • Modified aerogel nanoparticles and their applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Step 1: Preparation of Aerogel Nanoparticles A: Mix 10 grams of cellulose nanofibers (mass fraction of 1.51%) with deionized water, and ultrasonically treat for 8 minutes to obtain a nanoparticle dispersion. Nanocellulose and N-( 2-Aminoethyl)-3-aminopropyltrimethoxysilane was added with N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (KH-792) in a mass ratio of 1:1, mixed , the mixture was stirred at 700 r / min for 2 hours at room temperature, frozen in liquid nitrogen for 30 minutes, vacuum freeze-dried for 24 hours, and dried in an oven at 100°C for 30 minutes to obtain KH-792 modified cellulose aerogel nanoparticles .

[0061] Step 2: Preparation of Aerogel Nanoparticles B: Mix 2 grams of cellulose nanofibers with deionized water, ultrasonically treat for 5 minutes to obtain a dispersion, add EDTA aqueous solution, stir at room temperature for 28 hours, suction filtration, Washed with ultrapure water for several times and dried at 95°C for 30 minutes to obtain EDTA-m...

Embodiment 2

[0064] Except that the mass parts of KH-792 modified cellulose aerogel nanoparticles in Example 1 were replaced by 3 mass parts, the mass parts of sulfurized sea buckthorn seed oil with a sulfur content of 3% were replaced by 20 mass parts, and the sulfur content was 3%. % The mass part of sulfurized sunflower oil is replaced by 10 mass parts and the mass part of EDTA-modified cellulose aerogel nanoparticles is replaced by 1 mass part, the rest of the component content and operating conditions are the same as in Example 1.

Embodiment 3

[0066] Except replacing 6 parts by mass of KH-792 modified cellulose aerogel nanoparticles in Example 1 with 8 parts by mass of 3-aminopropyltrimethoxysilane (KH-540), a sulfur content of 3% The parts by mass of sulfurized sea buckthorn seed oil were replaced by 42 parts by mass, the parts by mass of sulfurized sunflower oil with a sulfur content of 3% were replaced by 7 parts by mass and the parts by mass of EDTA-modified cellulose aerogel nanoparticles were replaced by 4 parts by mass Other than that, the remaining component contents and operating conditions were the same as in Example 1.

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Abstract

The invention discloses a modified aerogel nanoparticle, which is composed of an aminosilane coupling agent-modified nanoparticle and an EDTA-modified nanoparticle, wherein the aminosilane coupling agent-modified nanoparticle and The mass fraction ratio of the EDTA-modified nanoparticles is (2-4): 1.

Description

technical field [0001] The invention belongs to the technical field of nanoparticles, in particular to modified aerogel nanoparticles and their use in preparing aerogel-loaded vegetable-based lubricating oils. Background technique [0002] Lubricating oil is a type of liquid or semi-solid lubricant widely used in automobile engines and mechanical equipment to reduce friction between two moving parts, thereby reducing wear between two parts in contact with each other. Lubricating oil is generally composed of base oil and additives. Among them, the base oil constitutes the main component of the lubricating oil, which determines the basic properties of the lubricating oil; and the additive is an indispensable component of the lubricating oil, which makes up for some defects in the performance of the base oil and gives the lubricating oil new properties. performance. [0003] At present, people carry out research from many aspects to improve the performance of lubricating oil....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/15C01B33/157B82Y30/00C08J9/28C08L1/02C10M161/00C10M159/02C10M169/04C10N30/06C10N30/10C10N30/12
CPCC01B32/15C01B33/157B82Y30/00C08J9/28C10M161/00C10M159/02C10M169/048C08J2301/02C10M2207/401C10M2209/12C10M2227/04C10M2215/04C10M2219/024C10M2207/144
Inventor 何新桥
Owner 正大国际科技(常德)集团有限公司
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