Temperature-resistant and wear-resistant nano composite functional coating

A functional coating and nano-composite technology, applied in the field of coatings and functional coatings, can solve the problems of high friction coefficient, insufficient temperature and corrosion resistance, etc., and achieve excellent temperature resistance, excellent synergistic effect, good industrial application prospects and practical value. Effect

Active Publication Date: 2013-08-07
北京希柯节能环保科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent of [0005] CN1339619A discloses a cobalt / tungsten carbide powder wear-resistant composite coating with a composition ratio of Co:WC=15-25%:85-75%. Prepared by plasma spraying method, the coating can improve the wear resistance of the steel surface, but its friction coefficient is relatively large
[0006] CN94116246A discloses a kind of with epoxy resin as adhesive, molybdenum disulfide is solid lubricant, dicyandiamide is curing agent, butyronitrile 40 is Epoxy modifier, added with other modified lubricating coatings at the same time, has good wear-resistant lubricity and anti-sticking properties, but it has obvious shortcomings in temperature resistance and corrosion resistance

Method used

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  • Temperature-resistant and wear-resistant nano composite functional coating

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0041] Preparation Example 1: Modified Nano Zinc Oxide

[0042] Add 1.25 L of deionized water into the reactor, add 2.5 g of borax while stirring, heat up to about 80 °C, keep stirring for about 30 minutes, add 100 g of nano-zinc oxide with a particle size of 100-500 nm, and continue to keep stirring for 70 minutes The suspension was obtained in about 10 minutes, lowered to room temperature, stopped stirring, and dried to dryness at 120°C to obtain the modified nano-zinc oxide. In terms of mass percentage, the nano-zinc oxide was 97.57% and the borax was 2.43%.

[0043] By selecting nano-zinc oxides with different particle sizes, modified nano-zinc oxides with different particle sizes can be prepared.

preparation example 2

[0044] Preparation Example 2: Modified Nano Molybdenum Disulfide

[0045] Add 100 g of emulsifier OP-10 into 500 ml of absolute ethanol, mix well and add 50 g of nano-MoS with a particle size of 100-500 nm 2 Fine powder, stirred or ball milled for 3 hours, finally filtered, dried, and crushed for later use.

[0046] By selecting nano-MoS with different particle sizes 2 , modified nano-MoS with different particle sizes can be prepared 2 .

Embodiment 1

[0048] With 35 parts by weight of bisphenol A-epoxy resin, 12 parts by weight of modified nano-zinc oxide, 8 parts by weight of modified nano-molybdenum disulfide, 4 parts by weight of nanomaterial additives, 2 parts by weight of micropowder additives, 15 parts by weight of butyl acetate , 10 parts by weight of pentaerythritol triacrylate, 11 parts by weight of diethylenetriamine and 3 parts by weight of auxiliary agents are dropped into a high-speed dispersant for uniform dispersion and then ground, filtered, and packaged to obtain the nanocomposite functional coating NC of the present invention. 1.

[0049] Among them, the particle sizes of the modified nano-zinc oxide and the modified nano-molybdenum disulfide are both 120 nm.

[0050] Among them, the nanomaterial additive is a mixture of nano-titanium nitride and nano-silicon carbide with a weight ratio of 1:1, both of which have a particle size of 140 nm; Mixture, particle size 5.2 μm.

[0051] Wherein, the auxiliary ag...

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Abstract

The invention relates to a nano composite functional coating, a preparation method thereof and a use thereof. The coating comprises film-forming resins, modified nano zinc oxide, modified nano molybdenum disulfide, a nano material additive, a micro powder additive, a solvent, a diluent, a curing agent and auxiliaries in a certain mass ratio. The novel nano composite functional coating shows excellent high temperature resistance and abrasion resistance, and especially meets the environment requirement for high-temperature work; besides, the wear rate of the material is reduced and the service life of the material is prolonged; and therefore, the nano composite functional coating has wide industrial application prospect.

Description

technical field [0001] The invention relates to a coating, more specifically to a nano-composite coating with temperature resistance and wear resistance, and belongs to the field of functional coatings. Background technique [0002] Wear is known as one of the three major forms of material failure. According to statistics, about 70-80% of equipment damage and nearly 50% of energy consumption are attributed to various forms of wear and tear every year, which not only causes waste of energy and materials, but also causes huge economic losses, serious even It also endangers personal safety and affects national development. In order to avoid or minimize wear and achieve the purpose of prolonging the service life of materials and reducing losses caused by wear, improving the wear resistance of materials has become the key to the problem. [0003] Wear-resistant coating is a kind of coating with special functions, which has good wear resistance, and the wear of materials general...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C3/08C09D163/02C09D7/12C09C3/06C09D175/14C09D163/04C09C3/12C09C1/04C09C1/00
Inventor 杨雪飞
Owner 北京希柯节能环保科技有限公司
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